1 /* Treeview control
2 *
3 * Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
4 * Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
5 * Copyright 1999 Sylvain St-Germain
6 * Copyright 2002 CodeWeavers, Aric Stewart
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 *
22 * NOTES
23 *
24 * Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
25 *
26 * Note2: If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
27 * of size TEXT_CALLBACK_SIZE in DoSetItem.
28 * We use callbackMask to keep track of fields to be updated.
29 *
30 * TODO:
31 * missing notifications: TVN_GETINFOTIP, TVN_KEYDOWN,
32 * TVN_SETDISPINFO
33 *
34 * missing styles: TVS_INFOTIP, TVS_RTLREADING,
35 *
36 * missing item styles: TVIS_EXPANDPARTIAL, TVIS_EX_FLAT,
37 * TVIS_EX_DISABLED
38 *
39 * Make the insertion mark look right.
40 * Scroll (instead of repaint) as much as possible.
41 */
42
43 #include <assert.h>
44 #include <ctype.h>
45 #include <stdarg.h>
46 #include <string.h>
47 #include <limits.h>
48 #include <stdlib.h>
49
50 #define NONAMELESSUNION
51
52 #include "windef.h"
53 #include "winbase.h"
54 #include "wingdi.h"
55 #include "winuser.h"
56 #include "winnls.h"
57 #include "commctrl.h"
58 #include "comctl32.h"
59 #include "uxtheme.h"
60 #include "vssym32.h"
61 #include "wine/debug.h"
62 #include "wine/exception.h"
63 #include "wine/heap.h"
64
65 WINE_DEFAULT_DEBUG_CHANNEL(treeview);
66
67 /* internal structures */
68 typedef struct tagTREEVIEW_INFO
69 {
70 HWND hwnd;
71 HWND hwndNotify; /* Owner window to send notifications to */
72 DWORD dwStyle;
73 HTREEITEM root;
74 UINT uInternalStatus;
75 INT Timer;
76 UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
77 INT cdmode; /* last custom draw setting */
78 UINT uScrollTime; /* max. time for scrolling in milliseconds */
79 BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
80
81 UINT uItemHeight; /* item height */
82 BOOL bHeightSet;
83
84 LONG clientWidth; /* width of control window */
85 LONG clientHeight; /* height of control window */
86
87 LONG treeWidth; /* width of visible tree items */
88 LONG treeHeight; /* height of visible tree items */
89
90 UINT uIndent; /* indentation in pixels */
91 HTREEITEM selectedItem; /* handle to selected item or 0 if none */
92 HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
93 HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
94 HTREEITEM editItem; /* item being edited with builtin edit box */
95
96 HTREEITEM firstVisible; /* handle to item whose top edge is at y = 0 */
97 LONG maxVisibleOrder;
98 HTREEITEM dropItem; /* handle to item selected by drag cursor */
99 HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
100 BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
101 HIMAGELIST dragList; /* Bitmap of dragged item */
102 LONG scrollX;
103 INT wheelRemainder;
104 COLORREF clrBk;
105 COLORREF clrText;
106 COLORREF clrLine;
107 COLORREF clrInsertMark;
108 HFONT hFont;
109 HFONT hDefaultFont;
110 HFONT hBoldFont;
111 HFONT hUnderlineFont;
112 HFONT hBoldUnderlineFont;
113 HCURSOR hcurHand;
114 HWND hwndToolTip;
115
116 HWND hwndEdit;
117 WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
118 BOOL bIgnoreEditKillFocus;
119 BOOL bLabelChanged;
120
121 BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
122 HIMAGELIST himlNormal;
123 int normalImageHeight;
124 int normalImageWidth;
125 HIMAGELIST himlState;
126 int stateImageHeight;
127 int stateImageWidth;
128 HDPA items;
129
130 DWORD lastKeyPressTimestamp;
131 WPARAM charCode;
132 INT nSearchParamLength;
133 WCHAR szSearchParam[ MAX_PATH ];
134 } TREEVIEW_INFO;
135
136 typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
137 {
138 HTREEITEM parent; /* handle to parent or 0 if at root */
139 HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
140 HTREEITEM firstChild; /* handle to first child or 0 if no child */
141
142 UINT callbackMask;
143 UINT state;
144 UINT stateMask;
145 LPWSTR pszText;
146 int cchTextMax;
147 int iImage;
148 int iSelectedImage;
149 int iExpandedImage;
150 int cChildren;
151 LPARAM lParam;
152 int iIntegral; /* item height multiplier (1 is normal) */
153 int iLevel; /* indentation level:0=root level */
154 HTREEITEM lastChild;
155 HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
156 RECT rect;
157 LONG linesOffset;
158 LONG stateOffset;
159 LONG imageOffset;
160 LONG textOffset;
161 LONG textWidth; /* horizontal text extent for pszText */
162 LONG visibleOrder; /* Depth-first numbering of the items whose ancestors are all expanded,
163 corresponding to a top-to-bottom ordering in the tree view.
164 Each item takes up "item.iIntegral" spots in the visible order.
165 0 is the root's first child. */
166 const TREEVIEW_INFO *infoPtr; /* tree data this item belongs to */
167 } TREEVIEW_ITEM;
168
169 /******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
170 #define KEY_DELAY 450
171
172 /* bitflags for infoPtr->uInternalStatus */
173
174 #define TV_HSCROLL 0x01 /* treeview too large to fit in window */
175 #define TV_VSCROLL 0x02 /* (horizontal/vertical) */
176 #define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
177 #define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
178 #define TV_RDRAG 0x10 /* ditto Rbutton */
179 #define TV_RDRAGGING 0x20
180
181 /* bitflags for infoPtr->timer */
182
183 #define TV_EDIT_TIMER 2
184 #define TV_EDIT_TIMER_SET 2
185
186 #define TEXT_CALLBACK_SIZE 260
187
188 #define TREEVIEW_LEFT_MARGIN 8
189
190 #define MINIMUM_INDENT 19
191
192 #define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
193
194 #define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
195 #define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
196 #define ISVISIBLE(x) ((x)->visibleOrder >= 0)
197
198 #define GETLINECOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrGrayText : (x))
199 #define GETBKCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindow : (x))
200 #define GETTXTCOLOR(x) ((x) == CLR_NONE ? comctl32_color.clrWindowText : (x))
201 #define GETINSCOLOR(x) ((x) == CLR_DEFAULT ? comctl32_color.clrBtnText : (x))
202
203 static const WCHAR themeClass[] = { 'T','r','e','e','v','i','e','w',0 };
204
205
206 typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
207
208
209 static VOID TREEVIEW_Invalidate(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
210
211 static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
212 static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
213 static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
214 static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
215 static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
216 static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
217
218 /* Random Utilities *****************************************************/
219 static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
220
221 /* Returns the treeview private data if hwnd is a treeview.
222 * Otherwise returns an undefined value. */
223 static inline TREEVIEW_INFO *
TREEVIEW_GetInfoPtr(HWND hwnd)224 TREEVIEW_GetInfoPtr(HWND hwnd)
225 {
226 return (TREEVIEW_INFO *)GetWindowLongPtrW(hwnd, 0);
227 }
228
229 /* Don't call this. Nothing wants an item index. */
230 static inline int
TREEVIEW_GetItemIndex(const TREEVIEW_INFO * infoPtr,HTREEITEM handle)231 TREEVIEW_GetItemIndex(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
232 {
233 return DPA_GetPtrIndex(infoPtr->items, handle);
234 }
235
236 /* Checks if item has changed and needs to be redrawn */
item_changed(const TREEVIEW_ITEM * tiOld,const TREEVIEW_ITEM * tiNew,const TVITEMEXW * tvChange)237 static inline BOOL item_changed (const TREEVIEW_ITEM *tiOld, const TREEVIEW_ITEM *tiNew,
238 const TVITEMEXW *tvChange)
239 {
240 /* Number of children has changed */
241 if ((tvChange->mask & TVIF_CHILDREN) && (tiOld->cChildren != tiNew->cChildren))
242 return TRUE;
243
244 /* Image has changed and it's not a callback */
245 if ((tvChange->mask & TVIF_IMAGE) && (tiOld->iImage != tiNew->iImage) &&
246 tiNew->iImage != I_IMAGECALLBACK)
247 return TRUE;
248
249 /* Selected image has changed and it's not a callback */
250 if ((tvChange->mask & TVIF_SELECTEDIMAGE) && (tiOld->iSelectedImage != tiNew->iSelectedImage) &&
251 tiNew->iSelectedImage != I_IMAGECALLBACK)
252 return TRUE;
253
254 if ((tvChange->mask & TVIF_EXPANDEDIMAGE) && (tiOld->iExpandedImage != tiNew->iExpandedImage) &&
255 tiNew->iExpandedImage != I_IMAGECALLBACK)
256 return TRUE;
257
258 /* Text has changed and it's not a callback */
259 if ((tvChange->mask & TVIF_TEXT) && (tiOld->pszText != tiNew->pszText) &&
260 tiNew->pszText != LPSTR_TEXTCALLBACKW)
261 return TRUE;
262
263 /* Indent has changed */
264 if ((tvChange->mask & TVIF_INTEGRAL) && (tiOld->iIntegral != tiNew->iIntegral))
265 return TRUE;
266
267 /* Item state has changed */
268 if ((tvChange->mask & TVIF_STATE) && ((tiOld->state ^ tiNew->state) & tvChange->stateMask ))
269 return TRUE;
270
271 return FALSE;
272 }
273
274 /***************************************************************************
275 * This method checks that handle is an item for this tree.
276 */
277 static BOOL
TREEVIEW_ValidItem(const TREEVIEW_INFO * infoPtr,HTREEITEM handle)278 TREEVIEW_ValidItem(const TREEVIEW_INFO *infoPtr, HTREEITEM handle)
279 {
280 if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
281 {
282 TRACE("invalid item %p\n", handle);
283 return FALSE;
284 }
285 else
286 return TRUE;
287 }
288
289 static HFONT
TREEVIEW_CreateBoldFont(HFONT hOrigFont)290 TREEVIEW_CreateBoldFont(HFONT hOrigFont)
291 {
292 LOGFONTW font;
293
294 GetObjectW(hOrigFont, sizeof(font), &font);
295 font.lfWeight = FW_BOLD;
296 return CreateFontIndirectW(&font);
297 }
298
299 static HFONT
TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)300 TREEVIEW_CreateUnderlineFont(HFONT hOrigFont)
301 {
302 LOGFONTW font;
303
304 GetObjectW(hOrigFont, sizeof(font), &font);
305 font.lfUnderline = TRUE;
306 return CreateFontIndirectW(&font);
307 }
308
309 static HFONT
TREEVIEW_CreateBoldUnderlineFont(HFONT hfont)310 TREEVIEW_CreateBoldUnderlineFont(HFONT hfont)
311 {
312 LOGFONTW font;
313
314 GetObjectW(hfont, sizeof(font), &font);
315 font.lfWeight = FW_BOLD;
316 font.lfUnderline = TRUE;
317 return CreateFontIndirectW(&font);
318 }
319
320 static inline HFONT
TREEVIEW_FontForItem(const TREEVIEW_INFO * infoPtr,const TREEVIEW_ITEM * item)321 TREEVIEW_FontForItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
322 {
323 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
324 return item->state & TVIS_BOLD ? infoPtr->hBoldUnderlineFont : infoPtr->hUnderlineFont;
325 if (item->state & TVIS_BOLD)
326 return infoPtr->hBoldFont;
327 return infoPtr->hFont;
328 }
329
330 /* for trace/debugging purposes only */
331 static const char *
TREEVIEW_ItemName(const TREEVIEW_ITEM * item)332 TREEVIEW_ItemName(const TREEVIEW_ITEM *item)
333 {
334 if (item == NULL) return "<null item>";
335 if (item->pszText == LPSTR_TEXTCALLBACKW) return "<callback>";
336 if (item->pszText == NULL) return "<null>";
337 return debugstr_w(item->pszText);
338 }
339
340 /* An item is not a child of itself. */
341 static BOOL
TREEVIEW_IsChildOf(const TREEVIEW_ITEM * parent,const TREEVIEW_ITEM * child)342 TREEVIEW_IsChildOf(const TREEVIEW_ITEM *parent, const TREEVIEW_ITEM *child)
343 {
344 do
345 {
346 child = child->parent;
347 if (child == parent) return TRUE;
348 } while (child != NULL);
349
350 return FALSE;
351 }
352
353 static BOOL
TREEVIEW_IsFullRowSelect(const TREEVIEW_INFO * infoPtr)354 TREEVIEW_IsFullRowSelect(const TREEVIEW_INFO *infoPtr)
355 {
356 return !(infoPtr->dwStyle & TVS_HASLINES) && (infoPtr->dwStyle & TVS_FULLROWSELECT);
357 }
358
359 static BOOL
TREEVIEW_IsItemHit(const TREEVIEW_INFO * infoPtr,const TVHITTESTINFO * ht)360 TREEVIEW_IsItemHit(const TREEVIEW_INFO *infoPtr, const TVHITTESTINFO *ht)
361 {
362 if (TREEVIEW_IsFullRowSelect(infoPtr))
363 return ht->flags & (TVHT_ONITEMINDENT | TVHT_ONITEMBUTTON | TVHT_ONITEM | TVHT_ONITEMRIGHT);
364 else
365 return ht->flags & TVHT_ONITEM;
366 }
367
368 /* Tree Traversal *******************************************************/
369
370 /***************************************************************************
371 * This method returns the last expanded sibling or child child item
372 * of a tree node
373 */
374 static TREEVIEW_ITEM *
TREEVIEW_GetLastListItem(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item)375 TREEVIEW_GetLastListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
376 {
377 if (!item) return NULL;
378
379 while (item->lastChild)
380 {
381 if (item->state & TVIS_EXPANDED)
382 item = item->lastChild;
383 else
384 break;
385 }
386
387 if (item == infoPtr->root)
388 return NULL;
389
390 return item;
391 }
392
393 /***************************************************************************
394 * This method returns the previous non-hidden item in the list not
395 * considering the tree hierarchy.
396 */
397 static TREEVIEW_ITEM *
TREEVIEW_GetPrevListItem(const TREEVIEW_INFO * infoPtr,const TREEVIEW_ITEM * tvItem)398 TREEVIEW_GetPrevListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
399 {
400 if (tvItem->prevSibling)
401 {
402 /* This item has a prevSibling, get the last item in the sibling's tree. */
403 TREEVIEW_ITEM *upItem = tvItem->prevSibling;
404
405 if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
406 return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
407 else
408 return upItem;
409 }
410 else
411 {
412 /* this item does not have a prevSibling, get the parent */
413 return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
414 }
415 }
416
417
418 /***************************************************************************
419 * This method returns the next physical item in the treeview not
420 * considering the tree hierarchy.
421 */
422 static TREEVIEW_ITEM *
TREEVIEW_GetNextListItem(const TREEVIEW_INFO * infoPtr,const TREEVIEW_ITEM * tvItem)423 TREEVIEW_GetNextListItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *tvItem)
424 {
425 /*
426 * If this item has children and is expanded, return the first child
427 */
428 if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
429 {
430 return tvItem->firstChild;
431 }
432
433
434 /*
435 * try to get the sibling
436 */
437 if (tvItem->nextSibling)
438 return tvItem->nextSibling;
439
440 /*
441 * Otherwise, get the parent's sibling.
442 */
443 while (tvItem->parent)
444 {
445 tvItem = tvItem->parent;
446
447 if (tvItem->nextSibling)
448 return tvItem->nextSibling;
449 }
450
451 return NULL;
452 }
453
454 /***************************************************************************
455 * This method returns the nth item starting at the given item. It returns
456 * the last item (or first) we we run out of items.
457 *
458 * Will scroll backward if count is <0.
459 * forward if count is >0.
460 */
461 static TREEVIEW_ITEM *
TREEVIEW_GetListItem(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item,LONG count)462 TREEVIEW_GetListItem(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
463 LONG count)
464 {
465 TREEVIEW_ITEM *(*next_item)(const TREEVIEW_INFO *, const TREEVIEW_ITEM *);
466 TREEVIEW_ITEM *previousItem;
467
468 assert(item != NULL);
469
470 if (count > 0)
471 {
472 next_item = TREEVIEW_GetNextListItem;
473 }
474 else if (count < 0)
475 {
476 count = -count;
477 next_item = TREEVIEW_GetPrevListItem;
478 }
479 else
480 return item;
481
482 do
483 {
484 previousItem = item;
485 item = next_item(infoPtr, item);
486
487 } while (--count && item != NULL);
488
489
490 return item ? item : previousItem;
491 }
492
493 /* Notifications ************************************************************/
494
get_notifycode(const TREEVIEW_INFO * infoPtr,INT code)495 static INT get_notifycode(const TREEVIEW_INFO *infoPtr, INT code)
496 {
497 if (!infoPtr->bNtfUnicode) {
498 switch (code) {
499 case TVN_SELCHANGINGW: return TVN_SELCHANGINGA;
500 case TVN_SELCHANGEDW: return TVN_SELCHANGEDA;
501 case TVN_GETDISPINFOW: return TVN_GETDISPINFOA;
502 case TVN_SETDISPINFOW: return TVN_SETDISPINFOA;
503 case TVN_ITEMEXPANDINGW: return TVN_ITEMEXPANDINGA;
504 case TVN_ITEMEXPANDEDW: return TVN_ITEMEXPANDEDA;
505 case TVN_BEGINDRAGW: return TVN_BEGINDRAGA;
506 case TVN_BEGINRDRAGW: return TVN_BEGINRDRAGA;
507 case TVN_DELETEITEMW: return TVN_DELETEITEMA;
508 case TVN_BEGINLABELEDITW: return TVN_BEGINLABELEDITA;
509 case TVN_ENDLABELEDITW: return TVN_ENDLABELEDITA;
510 case TVN_GETINFOTIPW: return TVN_GETINFOTIPA;
511 }
512 }
513 return code;
514 }
515
516 static inline BOOL
TREEVIEW_SendRealNotify(const TREEVIEW_INFO * infoPtr,UINT code,NMHDR * hdr)517 TREEVIEW_SendRealNotify(const TREEVIEW_INFO *infoPtr, UINT code, NMHDR *hdr)
518 {
519 TRACE("code=%d, hdr=%p\n", code, hdr);
520
521 hdr->hwndFrom = infoPtr->hwnd;
522 hdr->idFrom = GetWindowLongPtrW(infoPtr->hwnd, GWLP_ID);
523 hdr->code = get_notifycode(infoPtr, code);
524
525 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, hdr->idFrom, (LPARAM)hdr);
526 }
527
528 static BOOL
TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO * infoPtr,UINT code)529 TREEVIEW_SendSimpleNotify(const TREEVIEW_INFO *infoPtr, UINT code)
530 {
531 NMHDR hdr;
532 return TREEVIEW_SendRealNotify(infoPtr, code, &hdr);
533 }
534
535 static VOID
TREEVIEW_TVItemFromItem(const TREEVIEW_INFO * infoPtr,UINT mask,TVITEMW * tvItem,TREEVIEW_ITEM * item)536 TREEVIEW_TVItemFromItem(const TREEVIEW_INFO *infoPtr, UINT mask, TVITEMW *tvItem, TREEVIEW_ITEM *item)
537 {
538 tvItem->mask = mask;
539 tvItem->hItem = item;
540 tvItem->state = item->state;
541 tvItem->stateMask = 0;
542 tvItem->iImage = item->iImage;
543 tvItem->iSelectedImage = item->iSelectedImage;
544 tvItem->cChildren = item->cChildren;
545 tvItem->lParam = item->lParam;
546
547 if(mask & TVIF_TEXT)
548 {
549 if (!infoPtr->bNtfUnicode)
550 {
551 tvItem->cchTextMax = WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, NULL, 0, NULL, NULL );
552 tvItem->pszText = heap_alloc (tvItem->cchTextMax);
553 WideCharToMultiByte( CP_ACP, 0, item->pszText, -1, (LPSTR)tvItem->pszText, tvItem->cchTextMax, 0, 0 );
554 }
555 else
556 {
557 tvItem->cchTextMax = item->cchTextMax;
558 tvItem->pszText = item->pszText;
559 }
560 }
561 else
562 {
563 tvItem->cchTextMax = 0;
564 tvItem->pszText = NULL;
565 }
566 }
567
568 static BOOL
TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO * infoPtr,UINT code,UINT action,UINT mask,HTREEITEM oldItem,HTREEITEM newItem)569 TREEVIEW_SendTreeviewNotify(const TREEVIEW_INFO *infoPtr, UINT code, UINT action,
570 UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
571 {
572 NMTREEVIEWW nmhdr;
573 BOOL ret;
574
575 TRACE("code:%d action:0x%x olditem:%p newitem:%p\n",
576 code, action, oldItem, newItem);
577
578 memset(&nmhdr, 0, sizeof(NMTREEVIEWW));
579 nmhdr.action = action;
580
581 if (oldItem)
582 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
583
584 if (newItem)
585 TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
586
587 nmhdr.ptDrag.x = 0;
588 nmhdr.ptDrag.y = 0;
589
590 ret = TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
591 if (!infoPtr->bNtfUnicode)
592 {
593 heap_free(nmhdr.itemOld.pszText);
594 heap_free(nmhdr.itemNew.pszText);
595 }
596 return ret;
597 }
598
599 static BOOL
TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO * infoPtr,UINT code,HTREEITEM dragItem,POINT pt)600 TREEVIEW_SendTreeviewDnDNotify(const TREEVIEW_INFO *infoPtr, UINT code,
601 HTREEITEM dragItem, POINT pt)
602 {
603 NMTREEVIEWW nmhdr;
604
605 TRACE("code:%d dragitem:%p\n", code, dragItem);
606
607 nmhdr.action = 0;
608 nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
609 nmhdr.itemNew.hItem = dragItem;
610 nmhdr.itemNew.state = dragItem->state;
611 nmhdr.itemNew.lParam = dragItem->lParam;
612
613 nmhdr.ptDrag.x = pt.x;
614 nmhdr.ptDrag.y = pt.y;
615
616 return TREEVIEW_SendRealNotify(infoPtr, code, &nmhdr.hdr);
617 }
618
619
620 static BOOL
TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO * infoPtr,DWORD dwDrawStage,HDC hdc,RECT rc)621 TREEVIEW_SendCustomDrawNotify(const TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
622 HDC hdc, RECT rc)
623 {
624 NMTVCUSTOMDRAW nmcdhdr;
625 NMCUSTOMDRAW *nmcd;
626
627 TRACE("drawstage:0x%x hdc:%p\n", dwDrawStage, hdc);
628
629 nmcd = &nmcdhdr.nmcd;
630 nmcd->dwDrawStage = dwDrawStage;
631 nmcd->hdc = hdc;
632 nmcd->rc = rc;
633 nmcd->dwItemSpec = 0;
634 nmcd->uItemState = 0;
635 nmcd->lItemlParam = 0;
636 nmcdhdr.clrText = infoPtr->clrText;
637 nmcdhdr.clrTextBk = infoPtr->clrBk;
638 nmcdhdr.iLevel = 0;
639
640 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr.nmcd.hdr);
641 }
642
643 /* FIXME: need to find out when the flags in uItemState need to be set */
644
645 static BOOL
TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO * infoPtr,HDC hdc,TREEVIEW_ITEM * item,UINT uItemDrawState,NMTVCUSTOMDRAW * nmcdhdr)646 TREEVIEW_SendCustomDrawItemNotify(const TREEVIEW_INFO *infoPtr, HDC hdc,
647 TREEVIEW_ITEM *item, UINT uItemDrawState,
648 NMTVCUSTOMDRAW *nmcdhdr)
649 {
650 NMCUSTOMDRAW *nmcd;
651 DWORD dwDrawStage;
652 DWORD_PTR dwItemSpec;
653 UINT uItemState;
654
655 dwDrawStage = CDDS_ITEM | uItemDrawState;
656 dwItemSpec = (DWORD_PTR)item;
657 uItemState = 0;
658 if (item->state & TVIS_SELECTED)
659 uItemState |= CDIS_SELECTED;
660 if (item == infoPtr->selectedItem)
661 uItemState |= CDIS_FOCUS;
662 if (item == infoPtr->hotItem)
663 uItemState |= CDIS_HOT;
664
665 nmcd = &nmcdhdr->nmcd;
666 nmcd->dwDrawStage = dwDrawStage;
667 nmcd->hdc = hdc;
668 nmcd->rc = item->rect;
669 nmcd->dwItemSpec = dwItemSpec;
670 nmcd->uItemState = uItemState;
671 nmcd->lItemlParam = item->lParam;
672 nmcdhdr->iLevel = item->iLevel;
673
674 TRACE("drawstage:0x%x hdc:%p item:%lx, itemstate:0x%x, lItemlParam:0x%lx\n",
675 nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
676 nmcd->uItemState, nmcd->lItemlParam);
677
678 return TREEVIEW_SendRealNotify(infoPtr, NM_CUSTOMDRAW, &nmcdhdr->nmcd.hdr);
679 }
680
681 static BOOL
TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * editItem)682 TREEVIEW_BeginLabelEditNotify(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
683 {
684 NMTVDISPINFOW tvdi;
685 BOOL ret;
686
687 TREEVIEW_TVItemFromItem(infoPtr, TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT,
688 &tvdi.item, editItem);
689
690 ret = TREEVIEW_SendRealNotify(infoPtr, TVN_BEGINLABELEDITW, &tvdi.hdr);
691
692 if (!infoPtr->bNtfUnicode)
693 heap_free(tvdi.item.pszText);
694
695 return ret;
696 }
697
698 static void
TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item,UINT mask)699 TREEVIEW_UpdateDispInfo(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
700 UINT mask)
701 {
702 NMTVDISPINFOEXW callback;
703
704 TRACE("mask=0x%x, callbackmask=0x%x\n", mask, item->callbackMask);
705 mask &= item->callbackMask;
706
707 if (mask == 0) return;
708
709 /* 'state' always contains valid value, as well as 'lParam'.
710 * All other parameters are uninitialized.
711 */
712 callback.item.pszText = item->pszText;
713 callback.item.cchTextMax = item->cchTextMax;
714 callback.item.mask = mask;
715 callback.item.hItem = item;
716 callback.item.state = item->state;
717 callback.item.lParam = item->lParam;
718
719 /* If text is changed we need to recalculate textWidth */
720 if (mask & TVIF_TEXT)
721 item->textWidth = 0;
722
723 TREEVIEW_SendRealNotify(infoPtr, TVN_GETDISPINFOW, &callback.hdr);
724 TRACE("resulting code 0x%08x\n", callback.hdr.code);
725
726 /* It may have changed due to a call to SetItem. */
727 mask &= item->callbackMask;
728
729 if ((mask & TVIF_TEXT) && callback.item.pszText != item->pszText)
730 {
731 /* Instead of copying text into our buffer user specified his own */
732 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
733 LPWSTR newText;
734 int buflen;
735 int len = MultiByteToWideChar( CP_ACP, 0,
736 (LPSTR)callback.item.pszText, -1,
737 NULL, 0);
738 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
739 newText = heap_realloc(item->pszText, buflen);
740
741 TRACE("returned str %s, len=%d, buflen=%d\n",
742 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
743
744 if (newText)
745 {
746 item->pszText = newText;
747 MultiByteToWideChar( CP_ACP, 0,
748 (LPSTR)callback.item.pszText, -1,
749 item->pszText, buflen/sizeof(WCHAR));
750 item->cchTextMax = buflen/sizeof(WCHAR);
751 }
752 /* If realloc fails we have nothing to do, but keep original text */
753 }
754 else {
755 int len = max(lstrlenW(callback.item.pszText) + 1,
756 TEXT_CALLBACK_SIZE);
757 LPWSTR newText = heap_realloc(item->pszText, len*sizeof(WCHAR));
758
759 TRACE("returned wstr %s, len=%d\n",
760 debugstr_w(callback.item.pszText), len);
761
762 if (newText)
763 {
764 item->pszText = newText;
765 lstrcpyW(item->pszText, callback.item.pszText);
766 item->cchTextMax = len;
767 }
768 /* If realloc fails we have nothing to do, but keep original text */
769 }
770 }
771 else if (mask & TVIF_TEXT) {
772 /* User put text into our buffer, that is ok unless A string */
773 if (!infoPtr->bNtfUnicode && (callback.hdr.code == TVN_GETDISPINFOA)) {
774 LPWSTR newText;
775 int buflen;
776 int len = MultiByteToWideChar( CP_ACP, 0,
777 (LPSTR)callback.item.pszText, -1,
778 NULL, 0);
779 buflen = max((len)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
780 newText = heap_alloc(buflen);
781
782 TRACE("same buffer str %s, len=%d, buflen=%d\n",
783 debugstr_a((LPSTR)callback.item.pszText), len, buflen);
784
785 if (newText)
786 {
787 LPWSTR oldText = item->pszText;
788 item->pszText = newText;
789 MultiByteToWideChar( CP_ACP, 0,
790 (LPSTR)callback.item.pszText, -1,
791 item->pszText, buflen/sizeof(WCHAR));
792 item->cchTextMax = buflen/sizeof(WCHAR);
793 heap_free(oldText);
794 }
795 }
796 }
797
798 if (mask & TVIF_IMAGE)
799 item->iImage = callback.item.iImage;
800
801 if (mask & TVIF_SELECTEDIMAGE)
802 item->iSelectedImage = callback.item.iSelectedImage;
803
804 if (mask & TVIF_EXPANDEDIMAGE)
805 item->iExpandedImage = callback.item.iExpandedImage;
806
807 if (mask & TVIF_CHILDREN)
808 item->cChildren = callback.item.cChildren;
809
810 if (callback.item.mask & TVIF_STATE)
811 {
812 item->state &= ~callback.item.stateMask;
813 item->state |= (callback.item.state & callback.item.stateMask);
814 }
815
816 /* These members are now permanently set. */
817 if (callback.item.mask & TVIF_DI_SETITEM)
818 item->callbackMask &= ~callback.item.mask;
819 }
820
821 /***************************************************************************
822 * This function uses cChildren field to decide whether the item has
823 * children or not.
824 * Note: if this returns TRUE, the child items may not actually exist,
825 * they could be virtual.
826 *
827 * Just use item->firstChild to check for physical children.
828 */
829 static BOOL
TREEVIEW_HasChildren(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item)830 TREEVIEW_HasChildren(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
831 {
832 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_CHILDREN);
833 /* Protect for a case when callback field is not changed by a host,
834 otherwise negative values trigger normal notifications. */
835 return item->cChildren != 0 && item->cChildren != I_CHILDRENCALLBACK;
836 }
837
TREEVIEW_NotifyFormat(TREEVIEW_INFO * infoPtr,HWND hwndFrom,UINT nCommand)838 static INT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, HWND hwndFrom, UINT nCommand)
839 {
840 INT format;
841
842 TRACE("(hwndFrom=%p, nCommand=%d)\n", hwndFrom, nCommand);
843
844 if (nCommand != NF_REQUERY) return 0;
845
846 format = SendMessageW(hwndFrom, WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
847 TRACE("format=%d\n", format);
848
849 /* Invalid format returned by NF_QUERY defaults to ANSI*/
850 if (format != NFR_ANSI && format != NFR_UNICODE)
851 format = NFR_ANSI;
852
853 infoPtr->bNtfUnicode = (format == NFR_UNICODE);
854
855 return format;
856 }
857
858 /* Item Position ********************************************************/
859
860 /* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
861 static VOID
TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item)862 TREEVIEW_ComputeItemInternalMetrics(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
863 {
864 /* has TVS_LINESATROOT and (TVS_HASLINES|TVS_HASBUTTONS) */
865 BOOL lar = ((infoPtr->dwStyle & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
866 > TVS_LINESATROOT);
867
868 item->linesOffset = infoPtr->uIndent * (lar ? item->iLevel : item->iLevel - 1)
869 - infoPtr->scrollX;
870 item->stateOffset = item->linesOffset + infoPtr->uIndent;
871 item->imageOffset = item->stateOffset
872 + (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
873 item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
874 }
875
876 static VOID
TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item,HDC hDC)877 TREEVIEW_ComputeTextWidth(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
878 {
879 HDC hdc;
880 HFONT hOldFont=0;
881 SIZE sz;
882
883 /* DRAW's OM docker creates items like this */
884 if (item->pszText == NULL)
885 {
886 item->textWidth = 0;
887 return;
888 }
889
890 if (hDC != 0)
891 {
892 hdc = hDC;
893 }
894 else
895 {
896 hdc = GetDC(infoPtr->hwnd);
897 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
898 }
899
900 GetTextExtentPoint32W(hdc, item->pszText, lstrlenW(item->pszText), &sz);
901 item->textWidth = sz.cx;
902
903 if (hDC == 0)
904 {
905 SelectObject(hdc, hOldFont);
906 ReleaseDC(0, hdc);
907 }
908 }
909
910 static VOID
TREEVIEW_ComputeItemRect(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item)911 TREEVIEW_ComputeItemRect(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
912 {
913 item->rect.top = infoPtr->uItemHeight *
914 (item->visibleOrder - infoPtr->firstVisible->visibleOrder);
915
916 item->rect.bottom = item->rect.top
917 + infoPtr->uItemHeight * item->iIntegral - 1;
918
919 item->rect.left = 0;
920 item->rect.right = infoPtr->clientWidth;
921 }
922
923 /* We know that only items after start need their order updated. */
924 static void
TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * start)925 TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
926 {
927 TREEVIEW_ITEM *item;
928 int order;
929
930 if (!start)
931 {
932 start = infoPtr->root->firstChild;
933 order = 0;
934 }
935 else
936 order = start->visibleOrder;
937
938 for (item = start; item != NULL;
939 item = TREEVIEW_GetNextListItem(infoPtr, item))
940 {
941 if (!ISVISIBLE(item) && order > 0)
942 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
943 item->visibleOrder = order;
944 order += item->iIntegral;
945 }
946
947 infoPtr->maxVisibleOrder = order;
948
949 for (item = infoPtr->root->firstChild; item != NULL;
950 item = TREEVIEW_GetNextListItem(infoPtr, item))
951 {
952 TREEVIEW_ComputeItemRect(infoPtr, item);
953 }
954 }
955
956
957 /* Update metrics of all items in selected subtree.
958 * root must be expanded
959 */
960 static VOID
TREEVIEW_UpdateSubTree(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * root)961 TREEVIEW_UpdateSubTree(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
962 {
963 TREEVIEW_ITEM *sibling;
964 HDC hdc;
965 HFONT hOldFont;
966
967 if (!root->firstChild || !(root->state & TVIS_EXPANDED))
968 return;
969
970 root->state &= ~TVIS_EXPANDED;
971 sibling = TREEVIEW_GetNextListItem(infoPtr, root);
972 root->state |= TVIS_EXPANDED;
973
974 hdc = GetDC(infoPtr->hwnd);
975 hOldFont = SelectObject(hdc, infoPtr->hFont);
976
977 for (; root != sibling;
978 root = TREEVIEW_GetNextListItem(infoPtr, root))
979 {
980 TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
981
982 if (root->callbackMask & TVIF_TEXT)
983 TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
984
985 if (root->textWidth == 0)
986 {
987 SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
988 TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
989 }
990 }
991
992 SelectObject(hdc, hOldFont);
993 ReleaseDC(infoPtr->hwnd, hdc);
994 }
995
996 /* Item Allocation **********************************************************/
997
998 static TREEVIEW_ITEM *
TREEVIEW_AllocateItem(const TREEVIEW_INFO * infoPtr)999 TREEVIEW_AllocateItem(const TREEVIEW_INFO *infoPtr)
1000 {
1001 TREEVIEW_ITEM *newItem = heap_alloc_zero(sizeof(*newItem));
1002
1003 if (!newItem)
1004 return NULL;
1005
1006 /* I_IMAGENONE would make more sense but this is neither what is
1007 * documented (MSDN doesn't specify) nor what Windows actually does
1008 * (it sets it to zero)... and I can so imagine an application using
1009 * inc/dec to toggle the images. */
1010 newItem->iImage = 0;
1011 newItem->iSelectedImage = 0;
1012 newItem->iExpandedImage = (WORD)I_IMAGENONE;
1013 newItem->infoPtr = infoPtr;
1014
1015 if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
1016 {
1017 heap_free(newItem);
1018 return NULL;
1019 }
1020
1021 return newItem;
1022 }
1023
1024 /* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
1025 * free item->pszText. */
1026 static void
TREEVIEW_FreeItem(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item)1027 TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1028 {
1029 DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
1030 if (infoPtr->selectedItem == item)
1031 infoPtr->selectedItem = NULL;
1032 if (infoPtr->hotItem == item)
1033 infoPtr->hotItem = NULL;
1034 if (infoPtr->focusedItem == item)
1035 infoPtr->focusedItem = NULL;
1036 if (infoPtr->firstVisible == item)
1037 infoPtr->firstVisible = NULL;
1038 if (infoPtr->dropItem == item)
1039 infoPtr->dropItem = NULL;
1040 if (infoPtr->insertMarkItem == item)
1041 infoPtr->insertMarkItem = NULL;
1042 heap_free(item);
1043 }
1044
1045
1046 /* Item Insertion *******************************************************/
1047
1048 /***************************************************************************
1049 * This method inserts newItem before sibling as a child of parent.
1050 * sibling can be NULL, but only if parent has no children.
1051 */
1052 static void
TREEVIEW_InsertBefore(TREEVIEW_ITEM * newItem,TREEVIEW_ITEM * sibling,TREEVIEW_ITEM * parent)1053 TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1054 TREEVIEW_ITEM *parent)
1055 {
1056 assert(parent != NULL);
1057
1058 if (sibling != NULL)
1059 {
1060 assert(sibling->parent == parent);
1061
1062 if (sibling->prevSibling != NULL)
1063 sibling->prevSibling->nextSibling = newItem;
1064
1065 newItem->prevSibling = sibling->prevSibling;
1066 sibling->prevSibling = newItem;
1067 }
1068 else
1069 newItem->prevSibling = NULL;
1070
1071 newItem->nextSibling = sibling;
1072
1073 if (parent->firstChild == sibling)
1074 parent->firstChild = newItem;
1075
1076 if (parent->lastChild == NULL)
1077 parent->lastChild = newItem;
1078 }
1079
1080 /***************************************************************************
1081 * This method inserts newItem after sibling as a child of parent.
1082 * sibling can be NULL, but only if parent has no children.
1083 */
1084 static void
TREEVIEW_InsertAfter(TREEVIEW_ITEM * newItem,TREEVIEW_ITEM * sibling,TREEVIEW_ITEM * parent)1085 TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
1086 TREEVIEW_ITEM *parent)
1087 {
1088 assert(parent != NULL);
1089
1090 if (sibling != NULL)
1091 {
1092 assert(sibling->parent == parent);
1093
1094 if (sibling->nextSibling != NULL)
1095 sibling->nextSibling->prevSibling = newItem;
1096
1097 newItem->nextSibling = sibling->nextSibling;
1098 sibling->nextSibling = newItem;
1099 }
1100 else
1101 newItem->nextSibling = NULL;
1102
1103 newItem->prevSibling = sibling;
1104
1105 if (parent->lastChild == sibling)
1106 parent->lastChild = newItem;
1107
1108 if (parent->firstChild == NULL)
1109 parent->firstChild = newItem;
1110 }
1111
1112 static BOOL
TREEVIEW_DoSetItemT(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item,const TVITEMEXW * tvItem,BOOL isW)1113 TREEVIEW_DoSetItemT(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
1114 const TVITEMEXW *tvItem, BOOL isW)
1115 {
1116 UINT callbackClear = 0;
1117 UINT callbackSet = 0;
1118
1119 TRACE("item %p\n", item);
1120 /* Do this first in case it fails. */
1121 if (tvItem->mask & TVIF_TEXT)
1122 {
1123 item->textWidth = 0; /* force width recalculation */
1124
1125 /* Covers != TEXTCALLBACKA too, and undocumented: pszText of NULL also means TEXTCALLBACK */
1126 if (tvItem->pszText != LPSTR_TEXTCALLBACKW && tvItem->pszText != NULL)
1127 {
1128 int len;
1129 LPWSTR newText;
1130 if (isW)
1131 len = lstrlenW(tvItem->pszText) + 1;
1132 else
1133 len = MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1, NULL, 0);
1134
1135 /* Allocate new block to make pointer comparison in item_changed() work. */
1136 newText = heap_alloc(len * sizeof(WCHAR));
1137
1138 if (newText == NULL) return FALSE;
1139
1140 callbackClear |= TVIF_TEXT;
1141
1142 heap_free(item->pszText);
1143 item->pszText = newText;
1144 item->cchTextMax = len;
1145 if (isW)
1146 lstrcpynW(item->pszText, tvItem->pszText, len);
1147 else
1148 MultiByteToWideChar(CP_ACP, 0, (LPSTR)tvItem->pszText, -1,
1149 item->pszText, len);
1150
1151 TRACE("setting text %s, item %p\n", debugstr_w(item->pszText), item);
1152 }
1153 else
1154 {
1155 callbackSet |= TVIF_TEXT;
1156 item->pszText = heap_realloc(item->pszText, TEXT_CALLBACK_SIZE * sizeof(WCHAR));
1157 item->cchTextMax = TEXT_CALLBACK_SIZE;
1158 TRACE("setting callback, item %p\n", item);
1159 }
1160 }
1161
1162 if (tvItem->mask & TVIF_CHILDREN)
1163 {
1164 item->cChildren = tvItem->cChildren;
1165
1166 if (item->cChildren == I_CHILDRENCALLBACK)
1167 callbackSet |= TVIF_CHILDREN;
1168 else
1169 callbackClear |= TVIF_CHILDREN;
1170 }
1171
1172 if (tvItem->mask & TVIF_IMAGE)
1173 {
1174 item->iImage = tvItem->iImage;
1175
1176 if (item->iImage == I_IMAGECALLBACK)
1177 callbackSet |= TVIF_IMAGE;
1178 else
1179 callbackClear |= TVIF_IMAGE;
1180 }
1181
1182 if (tvItem->mask & TVIF_SELECTEDIMAGE)
1183 {
1184 item->iSelectedImage = tvItem->iSelectedImage;
1185
1186 if (item->iSelectedImage == I_IMAGECALLBACK)
1187 callbackSet |= TVIF_SELECTEDIMAGE;
1188 else
1189 callbackClear |= TVIF_SELECTEDIMAGE;
1190 }
1191
1192 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
1193 {
1194 item->iExpandedImage = tvItem->iExpandedImage;
1195
1196 if (item->iExpandedImage == I_IMAGECALLBACK)
1197 callbackSet |= TVIF_EXPANDEDIMAGE;
1198 else
1199 callbackClear |= TVIF_EXPANDEDIMAGE;
1200 }
1201
1202 if (tvItem->mask & TVIF_PARAM)
1203 item->lParam = tvItem->lParam;
1204
1205 /* If the application sets TVIF_INTEGRAL without
1206 * supplying a TVITEMEX structure, it's toast. */
1207 if (tvItem->mask & TVIF_INTEGRAL)
1208 item->iIntegral = tvItem->iIntegral;
1209
1210 if (tvItem->mask & TVIF_STATE)
1211 {
1212 TRACE("prevstate 0x%x, state 0x%x, mask 0x%x\n", item->state, tvItem->state,
1213 tvItem->stateMask);
1214 item->state &= ~tvItem->stateMask;
1215 item->state |= (tvItem->state & tvItem->stateMask);
1216 }
1217
1218 if (tvItem->mask & TVIF_STATEEX)
1219 {
1220 FIXME("New extended state: 0x%x\n", tvItem->uStateEx);
1221 }
1222
1223 item->callbackMask |= callbackSet;
1224 item->callbackMask &= ~callbackClear;
1225
1226 return TRUE;
1227 }
1228
1229 /* Note that the new item is pre-zeroed. */
1230 static LRESULT
TREEVIEW_InsertItemT(TREEVIEW_INFO * infoPtr,const TVINSERTSTRUCTW * ptdi,BOOL isW)1231 TREEVIEW_InsertItemT(TREEVIEW_INFO *infoPtr, const TVINSERTSTRUCTW *ptdi, BOOL isW)
1232 {
1233 const TVITEMEXW *tvItem = &ptdi->u.itemex;
1234 HTREEITEM insertAfter;
1235 TREEVIEW_ITEM *newItem, *parentItem;
1236 BOOL bTextUpdated = FALSE;
1237
1238 if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
1239 {
1240 parentItem = infoPtr->root;
1241 }
1242 else
1243 {
1244 parentItem = ptdi->hParent;
1245
1246 if (!TREEVIEW_ValidItem(infoPtr, parentItem))
1247 {
1248 WARN("invalid parent %p\n", parentItem);
1249 return 0;
1250 }
1251 }
1252
1253 insertAfter = ptdi->hInsertAfter;
1254
1255 /* Validate this now for convenience. */
1256 switch ((DWORD_PTR)insertAfter)
1257 {
1258 case (DWORD_PTR)TVI_FIRST:
1259 case (DWORD_PTR)TVI_LAST:
1260 case (DWORD_PTR)TVI_SORT:
1261 break;
1262
1263 default:
1264 if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
1265 insertAfter->parent != parentItem)
1266 {
1267 WARN("invalid insert after %p\n", insertAfter);
1268 insertAfter = TVI_LAST;
1269 }
1270 }
1271
1272 TRACE("parent %p position %p: %s\n", parentItem, insertAfter,
1273 (tvItem->mask & TVIF_TEXT)
1274 ? ((tvItem->pszText == LPSTR_TEXTCALLBACKW) ? "<callback>"
1275 : (isW ? debugstr_w(tvItem->pszText) : debugstr_a((LPSTR)tvItem->pszText)))
1276 : "<no label>");
1277
1278 newItem = TREEVIEW_AllocateItem(infoPtr);
1279 if (newItem == NULL)
1280 return 0;
1281
1282 newItem->parent = parentItem;
1283 newItem->iIntegral = 1;
1284 newItem->visibleOrder = -1;
1285
1286 if (!TREEVIEW_DoSetItemT(infoPtr, newItem, tvItem, isW))
1287 return 0;
1288
1289 /* After this point, nothing can fail. (Except for TVI_SORT.) */
1290
1291 infoPtr->uNumItems++;
1292
1293 switch ((DWORD_PTR)insertAfter)
1294 {
1295 case (DWORD_PTR)TVI_FIRST:
1296 {
1297 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1298 TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
1299 if (infoPtr->firstVisible == originalFirst)
1300 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1301 }
1302 break;
1303
1304 case (DWORD_PTR)TVI_LAST:
1305 TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
1306 break;
1307
1308 /* hInsertAfter names a specific item we want to insert after */
1309 default:
1310 TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
1311 break;
1312
1313 case (DWORD_PTR)TVI_SORT:
1314 {
1315 TREEVIEW_ITEM *aChild;
1316 TREEVIEW_ITEM *previousChild = NULL;
1317 TREEVIEW_ITEM *originalFirst = parentItem->firstChild;
1318 BOOL bItemInserted = FALSE;
1319
1320 aChild = parentItem->firstChild;
1321
1322 bTextUpdated = TRUE;
1323 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1324
1325 /* Iterate the parent children to see where we fit in */
1326 while (aChild != NULL)
1327 {
1328 INT comp;
1329
1330 TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
1331 comp = lstrcmpW(newItem->pszText, aChild->pszText);
1332
1333 if (comp < 0) /* we are smaller than the current one */
1334 {
1335 TREEVIEW_InsertBefore(newItem, aChild, parentItem);
1336 if (infoPtr->firstVisible == originalFirst &&
1337 aChild == originalFirst)
1338 TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
1339 bItemInserted = TRUE;
1340 break;
1341 }
1342 else if (comp > 0) /* we are bigger than the current one */
1343 {
1344 previousChild = aChild;
1345
1346 /* This will help us to exit if there is no more sibling */
1347 aChild = (aChild->nextSibling == 0)
1348 ? NULL
1349 : aChild->nextSibling;
1350
1351 /* Look at the next item */
1352 continue;
1353 }
1354 else if (comp == 0)
1355 {
1356 /*
1357 * An item with this name is already existing, therefore,
1358 * we add after the one we found
1359 */
1360 TREEVIEW_InsertAfter(newItem, aChild, parentItem);
1361 bItemInserted = TRUE;
1362 break;
1363 }
1364 }
1365
1366 /*
1367 * we reach the end of the child list and the item has not
1368 * yet been inserted, therefore, insert it after the last child.
1369 */
1370 if ((!bItemInserted) && (aChild == NULL))
1371 TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
1372
1373 break;
1374 }
1375 }
1376
1377
1378 TRACE("new item %p; parent %p, mask 0x%x\n", newItem,
1379 newItem->parent, tvItem->mask);
1380
1381 newItem->iLevel = newItem->parent->iLevel + 1;
1382
1383 if (newItem->parent->cChildren == 0)
1384 newItem->parent->cChildren = 1;
1385
1386 if (infoPtr->dwStyle & TVS_CHECKBOXES)
1387 {
1388 if (STATEIMAGEINDEX(newItem->state) == 0)
1389 newItem->state |= INDEXTOSTATEIMAGEMASK(1);
1390 }
1391
1392 if (infoPtr->firstVisible == NULL)
1393 infoPtr->firstVisible = newItem;
1394
1395 TREEVIEW_VerifyTree(infoPtr);
1396
1397 if (!infoPtr->bRedraw) return (LRESULT)newItem;
1398
1399 if (parentItem == infoPtr->root ||
1400 (ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
1401 {
1402 TREEVIEW_ITEM *item;
1403 TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
1404
1405 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1406 TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
1407
1408 if (!bTextUpdated)
1409 TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
1410
1411 TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
1412 TREEVIEW_UpdateScrollBars(infoPtr);
1413 /*
1414 * if the item was inserted in a visible part of the tree,
1415 * invalidate it, as well as those after it
1416 */
1417 for (item = newItem;
1418 item != NULL;
1419 item = TREEVIEW_GetNextListItem(infoPtr, item))
1420 TREEVIEW_Invalidate(infoPtr, item);
1421 }
1422 else
1423 {
1424 /* refresh treeview if newItem is the first item inserted under parentItem */
1425 if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
1426 {
1427 /* parent got '+' - update it */
1428 TREEVIEW_Invalidate(infoPtr, parentItem);
1429 }
1430 }
1431
1432 return (LRESULT)newItem;
1433 }
1434
1435 /* Item Deletion ************************************************************/
1436 static void
1437 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
1438
1439 static void
TREEVIEW_RemoveAllChildren(TREEVIEW_INFO * infoPtr,const TREEVIEW_ITEM * parentItem)1440 TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *parentItem)
1441 {
1442 TREEVIEW_ITEM *kill = parentItem->firstChild;
1443
1444 while (kill != NULL)
1445 {
1446 TREEVIEW_ITEM *next = kill->nextSibling;
1447
1448 TREEVIEW_RemoveItem(infoPtr, kill);
1449
1450 kill = next;
1451 }
1452
1453 assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
1454 assert(parentItem->firstChild == NULL);
1455 assert(parentItem->lastChild == NULL);
1456 }
1457
1458 static void
TREEVIEW_UnlinkItem(const TREEVIEW_ITEM * item)1459 TREEVIEW_UnlinkItem(const TREEVIEW_ITEM *item)
1460 {
1461 TREEVIEW_ITEM *parentItem;
1462
1463 assert(item != NULL);
1464 assert(item->parent != NULL); /* i.e. it must not be the root */
1465
1466 parentItem = item->parent;
1467
1468 if (parentItem->firstChild == item)
1469 parentItem->firstChild = item->nextSibling;
1470
1471 if (parentItem->lastChild == item)
1472 parentItem->lastChild = item->prevSibling;
1473
1474 if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
1475 && parentItem->cChildren > 0)
1476 parentItem->cChildren = 0;
1477
1478 if (item->prevSibling)
1479 item->prevSibling->nextSibling = item->nextSibling;
1480
1481 if (item->nextSibling)
1482 item->nextSibling->prevSibling = item->prevSibling;
1483 }
1484
1485 static void
TREEVIEW_RemoveItem(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item)1486 TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
1487 {
1488 TRACE("%p, (%s)\n", item, TREEVIEW_ItemName(item));
1489
1490 if (item->firstChild)
1491 TREEVIEW_RemoveAllChildren(infoPtr, item);
1492
1493 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_DELETEITEMW, TVC_UNKNOWN,
1494 TVIF_HANDLE | TVIF_PARAM, item, 0);
1495
1496 TREEVIEW_UnlinkItem(item);
1497
1498 infoPtr->uNumItems--;
1499
1500 if (item->pszText != LPSTR_TEXTCALLBACKW)
1501 heap_free(item->pszText);
1502
1503 TREEVIEW_FreeItem(infoPtr, item);
1504 }
1505
1506
1507 /* Empty out the tree. */
1508 static void
TREEVIEW_RemoveTree(TREEVIEW_INFO * infoPtr)1509 TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
1510 {
1511 TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
1512
1513 assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
1514 }
1515
1516 static LRESULT
TREEVIEW_DeleteItem(TREEVIEW_INFO * infoPtr,HTREEITEM item)1517 TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM item)
1518 {
1519 TREEVIEW_ITEM *newSelection = NULL;
1520 TREEVIEW_ITEM *newFirstVisible = NULL;
1521 TREEVIEW_ITEM *parent, *prev = NULL;
1522 BOOL visible = FALSE;
1523
1524 if (item == TVI_ROOT || !item)
1525 {
1526 TRACE("TVI_ROOT\n");
1527 parent = infoPtr->root;
1528 newSelection = NULL;
1529 visible = TRUE;
1530 TREEVIEW_RemoveTree(infoPtr);
1531 }
1532 else
1533 {
1534 if (!TREEVIEW_ValidItem(infoPtr, item))
1535 return FALSE;
1536
1537 TRACE("%p (%s)\n", item, TREEVIEW_ItemName(item));
1538 parent = item->parent;
1539
1540 if (ISVISIBLE(item))
1541 {
1542 prev = TREEVIEW_GetPrevListItem(infoPtr, item);
1543 visible = TRUE;
1544 }
1545
1546 if (infoPtr->selectedItem != NULL
1547 && (item == infoPtr->selectedItem
1548 || TREEVIEW_IsChildOf(item, infoPtr->selectedItem)))
1549 {
1550 if (item->nextSibling)
1551 newSelection = item->nextSibling;
1552 else if (item->parent != infoPtr->root)
1553 newSelection = item->parent;
1554 else
1555 newSelection = item->prevSibling;
1556 TRACE("newSelection = %p\n", newSelection);
1557 }
1558
1559 if (infoPtr->firstVisible == item)
1560 {
1561 visible = TRUE;
1562 if (item->nextSibling)
1563 newFirstVisible = item->nextSibling;
1564 else if (item->prevSibling)
1565 newFirstVisible = item->prevSibling;
1566 else if (item->parent != infoPtr->root)
1567 newFirstVisible = item->parent;
1568 TREEVIEW_SetFirstVisible(infoPtr, NULL, TRUE);
1569 }
1570 else
1571 newFirstVisible = infoPtr->firstVisible;
1572
1573 TREEVIEW_RemoveItem(infoPtr, item);
1574 }
1575
1576 /* Don't change if somebody else already has (infoPtr->selectedItem is cleared by FreeItem). */
1577 if (!infoPtr->selectedItem && newSelection)
1578 {
1579 if (TREEVIEW_ValidItem(infoPtr, newSelection))
1580 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
1581 }
1582
1583 /* Validate insertMark dropItem.
1584 * hotItem ??? - used for comparison only.
1585 */
1586 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
1587 infoPtr->insertMarkItem = 0;
1588
1589 if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
1590 infoPtr->dropItem = 0;
1591
1592 if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
1593 newFirstVisible = infoPtr->root->firstChild;
1594
1595 TREEVIEW_VerifyTree(infoPtr);
1596
1597 if (visible)
1598 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
1599
1600 if (!infoPtr->bRedraw) return TRUE;
1601
1602 if (visible)
1603 {
1604 TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
1605 TREEVIEW_UpdateScrollBars(infoPtr);
1606 TREEVIEW_Invalidate(infoPtr, NULL);
1607 }
1608 else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
1609 {
1610 /* parent lost '+/-' - update it */
1611 TREEVIEW_Invalidate(infoPtr, parent);
1612 }
1613
1614 return TRUE;
1615 }
1616
1617
1618 /* Get/Set Messages *********************************************************/
1619 static LRESULT
TREEVIEW_SetRedraw(TREEVIEW_INFO * infoPtr,WPARAM wParam)1620 TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam)
1621 {
1622 infoPtr->bRedraw = wParam != 0;
1623
1624 if (infoPtr->bRedraw)
1625 {
1626 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1627 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1628 TREEVIEW_UpdateScrollBars(infoPtr);
1629 TREEVIEW_Invalidate(infoPtr, NULL);
1630 }
1631 return 0;
1632 }
1633
1634 static LRESULT
TREEVIEW_GetIndent(const TREEVIEW_INFO * infoPtr)1635 TREEVIEW_GetIndent(const TREEVIEW_INFO *infoPtr)
1636 {
1637 TRACE("\n");
1638 return infoPtr->uIndent;
1639 }
1640
1641 static LRESULT
TREEVIEW_SetIndent(TREEVIEW_INFO * infoPtr,UINT newIndent)1642 TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
1643 {
1644 TRACE("\n");
1645
1646 if (newIndent < MINIMUM_INDENT)
1647 newIndent = MINIMUM_INDENT;
1648
1649 if (infoPtr->uIndent != newIndent)
1650 {
1651 infoPtr->uIndent = newIndent;
1652 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1653 TREEVIEW_UpdateScrollBars(infoPtr);
1654 TREEVIEW_Invalidate(infoPtr, NULL);
1655 }
1656
1657 return 0;
1658 }
1659
1660
1661 static LRESULT
TREEVIEW_GetToolTips(const TREEVIEW_INFO * infoPtr)1662 TREEVIEW_GetToolTips(const TREEVIEW_INFO *infoPtr)
1663 {
1664 TRACE("\n");
1665 return (LRESULT)infoPtr->hwndToolTip;
1666 }
1667
1668 static LRESULT
TREEVIEW_SetToolTips(TREEVIEW_INFO * infoPtr,HWND hwndTT)1669 TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
1670 {
1671 HWND prevToolTip;
1672
1673 TRACE("\n");
1674 prevToolTip = infoPtr->hwndToolTip;
1675 infoPtr->hwndToolTip = hwndTT;
1676
1677 return (LRESULT)prevToolTip;
1678 }
1679
1680 static LRESULT
TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO * infoPtr,BOOL fUnicode)1681 TREEVIEW_SetUnicodeFormat(TREEVIEW_INFO *infoPtr, BOOL fUnicode)
1682 {
1683 BOOL rc = infoPtr->bNtfUnicode;
1684 infoPtr->bNtfUnicode = fUnicode;
1685 return rc;
1686 }
1687
1688 static LRESULT
TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO * infoPtr)1689 TREEVIEW_GetUnicodeFormat(const TREEVIEW_INFO *infoPtr)
1690 {
1691 return infoPtr->bNtfUnicode;
1692 }
1693
1694 static LRESULT
TREEVIEW_GetScrollTime(const TREEVIEW_INFO * infoPtr)1695 TREEVIEW_GetScrollTime(const TREEVIEW_INFO *infoPtr)
1696 {
1697 return infoPtr->uScrollTime;
1698 }
1699
1700 static LRESULT
TREEVIEW_SetScrollTime(TREEVIEW_INFO * infoPtr,UINT uScrollTime)1701 TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
1702 {
1703 UINT uOldScrollTime = infoPtr->uScrollTime;
1704
1705 infoPtr->uScrollTime = min(uScrollTime, 100);
1706
1707 return uOldScrollTime;
1708 }
1709
1710
1711 static LRESULT
TREEVIEW_GetImageList(const TREEVIEW_INFO * infoPtr,WPARAM wParam)1712 TREEVIEW_GetImageList(const TREEVIEW_INFO *infoPtr, WPARAM wParam)
1713 {
1714 TRACE("\n");
1715
1716 switch (wParam)
1717 {
1718 case TVSIL_NORMAL:
1719 return (LRESULT)infoPtr->himlNormal;
1720
1721 case TVSIL_STATE:
1722 return (LRESULT)infoPtr->himlState;
1723
1724 default:
1725 return 0;
1726 }
1727 }
1728
1729 #define TVHEIGHT_MIN 16
1730 #define TVHEIGHT_FONT_ADJUST 3 /* 2 for focus border + 1 for margin some apps assume */
1731
1732 /* Compute the natural height for items. */
1733 static UINT
TREEVIEW_NaturalHeight(const TREEVIEW_INFO * infoPtr)1734 TREEVIEW_NaturalHeight(const TREEVIEW_INFO *infoPtr)
1735 {
1736 TEXTMETRICW tm;
1737 HDC hdc = GetDC(0);
1738 HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
1739 UINT height;
1740
1741 /* Height is the maximum of:
1742 * 16 (a hack because our fonts are tiny), and
1743 * The text height + border & margin, and
1744 * The size of the normal image list
1745 */
1746 GetTextMetricsW(hdc, &tm);
1747 SelectObject(hdc, hOldFont);
1748 ReleaseDC(0, hdc);
1749
1750 height = TVHEIGHT_MIN;
1751 if (height < tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST)
1752 height = tm.tmHeight + tm.tmExternalLeading + TVHEIGHT_FONT_ADJUST;
1753 if (height < infoPtr->normalImageHeight)
1754 height = infoPtr->normalImageHeight;
1755
1756 /* Round down, unless we support odd ("non even") heights. */
1757 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT))
1758 height &= ~1;
1759
1760 return height;
1761 }
1762
1763 static LRESULT
TREEVIEW_SetImageList(TREEVIEW_INFO * infoPtr,UINT type,HIMAGELIST himlNew)1764 TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, UINT type, HIMAGELIST himlNew)
1765 {
1766 HIMAGELIST himlOld = 0;
1767 int oldWidth = infoPtr->normalImageWidth;
1768 int oldHeight = infoPtr->normalImageHeight;
1769
1770 TRACE("%u,%p\n", type, himlNew);
1771
1772 switch (type)
1773 {
1774 case TVSIL_NORMAL:
1775 himlOld = infoPtr->himlNormal;
1776 infoPtr->himlNormal = himlNew;
1777
1778 if (himlNew)
1779 ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
1780 &infoPtr->normalImageHeight);
1781 else
1782 {
1783 infoPtr->normalImageWidth = 0;
1784 infoPtr->normalImageHeight = 0;
1785 }
1786
1787 break;
1788
1789 case TVSIL_STATE:
1790 himlOld = infoPtr->himlState;
1791 infoPtr->himlState = himlNew;
1792
1793 if (himlNew)
1794 ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
1795 &infoPtr->stateImageHeight);
1796 else
1797 {
1798 infoPtr->stateImageWidth = 0;
1799 infoPtr->stateImageHeight = 0;
1800 }
1801
1802 break;
1803
1804 default:
1805 ERR("unknown imagelist type %u\n", type);
1806 }
1807
1808 if (oldWidth != infoPtr->normalImageWidth ||
1809 oldHeight != infoPtr->normalImageHeight)
1810 {
1811 BOOL bRecalcVisible = FALSE;
1812
1813 if (oldHeight != infoPtr->normalImageHeight &&
1814 !infoPtr->bHeightSet)
1815 {
1816 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1817 bRecalcVisible = TRUE;
1818 }
1819
1820 if (infoPtr->normalImageWidth > MINIMUM_INDENT &&
1821 infoPtr->normalImageWidth != infoPtr->uIndent)
1822 {
1823 infoPtr->uIndent = infoPtr->normalImageWidth;
1824 bRecalcVisible = TRUE;
1825 }
1826
1827 if (bRecalcVisible)
1828 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1829
1830 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1831 TREEVIEW_UpdateScrollBars(infoPtr);
1832 }
1833
1834 TREEVIEW_Invalidate(infoPtr, NULL);
1835
1836 return (LRESULT)himlOld;
1837 }
1838
1839 static LRESULT
TREEVIEW_SetItemHeight(TREEVIEW_INFO * infoPtr,INT newHeight)1840 TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
1841 {
1842 INT prevHeight = infoPtr->uItemHeight;
1843
1844 TRACE("new=%d, old=%d\n", newHeight, prevHeight);
1845 if (newHeight == -1)
1846 {
1847 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1848 infoPtr->bHeightSet = FALSE;
1849 }
1850 else
1851 {
1852 if (newHeight == 0) newHeight = 1;
1853 infoPtr->uItemHeight = newHeight;
1854 infoPtr->bHeightSet = TRUE;
1855 }
1856
1857 /* Round down, unless we support odd ("non even") heights. */
1858 if (!(infoPtr->dwStyle & TVS_NONEVENHEIGHT) && infoPtr->uItemHeight != 1)
1859 {
1860 infoPtr->uItemHeight &= ~1;
1861 TRACE("after rounding=%d\n", infoPtr->uItemHeight);
1862 }
1863
1864 if (infoPtr->uItemHeight != prevHeight)
1865 {
1866 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1867 TREEVIEW_UpdateScrollBars(infoPtr);
1868 TREEVIEW_Invalidate(infoPtr, NULL);
1869 }
1870
1871 return prevHeight;
1872 }
1873
1874 static LRESULT
TREEVIEW_GetItemHeight(const TREEVIEW_INFO * infoPtr)1875 TREEVIEW_GetItemHeight(const TREEVIEW_INFO *infoPtr)
1876 {
1877 TRACE("\n");
1878 return infoPtr->uItemHeight;
1879 }
1880
1881
1882 static LRESULT
TREEVIEW_GetFont(const TREEVIEW_INFO * infoPtr)1883 TREEVIEW_GetFont(const TREEVIEW_INFO *infoPtr)
1884 {
1885 TRACE("%p\n", infoPtr->hFont);
1886 return (LRESULT)infoPtr->hFont;
1887 }
1888
1889
1890 static INT CALLBACK
TREEVIEW_ResetTextWidth(LPVOID pItem,LPVOID unused)1891 TREEVIEW_ResetTextWidth(LPVOID pItem, LPVOID unused)
1892 {
1893 (void)unused;
1894
1895 ((TREEVIEW_ITEM *)pItem)->textWidth = 0;
1896
1897 return 1;
1898 }
1899
1900 static LRESULT
TREEVIEW_SetFont(TREEVIEW_INFO * infoPtr,HFONT hFont,BOOL bRedraw)1901 TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
1902 {
1903 UINT uHeight = infoPtr->uItemHeight;
1904
1905 TRACE("%p %i\n", hFont, bRedraw);
1906
1907 infoPtr->hFont = hFont ? hFont : infoPtr->hDefaultFont;
1908
1909 DeleteObject(infoPtr->hBoldFont);
1910 DeleteObject(infoPtr->hUnderlineFont);
1911 DeleteObject(infoPtr->hBoldUnderlineFont);
1912 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
1913 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
1914 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
1915
1916 if (!infoPtr->bHeightSet)
1917 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
1918
1919 if (uHeight != infoPtr->uItemHeight)
1920 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
1921
1922 DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
1923
1924 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
1925 TREEVIEW_UpdateScrollBars(infoPtr);
1926
1927 if (bRedraw)
1928 TREEVIEW_Invalidate(infoPtr, NULL);
1929
1930 return 0;
1931 }
1932
1933
1934 static LRESULT
TREEVIEW_GetLineColor(const TREEVIEW_INFO * infoPtr)1935 TREEVIEW_GetLineColor(const TREEVIEW_INFO *infoPtr)
1936 {
1937 TRACE("\n");
1938 return (LRESULT)infoPtr->clrLine;
1939 }
1940
1941 static LRESULT
TREEVIEW_SetLineColor(TREEVIEW_INFO * infoPtr,COLORREF color)1942 TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1943 {
1944 COLORREF prevColor = infoPtr->clrLine;
1945
1946 TRACE("\n");
1947 infoPtr->clrLine = color;
1948 return (LRESULT)prevColor;
1949 }
1950
1951
1952 static LRESULT
TREEVIEW_GetTextColor(const TREEVIEW_INFO * infoPtr)1953 TREEVIEW_GetTextColor(const TREEVIEW_INFO *infoPtr)
1954 {
1955 TRACE("\n");
1956 return (LRESULT)infoPtr->clrText;
1957 }
1958
1959 static LRESULT
TREEVIEW_SetTextColor(TREEVIEW_INFO * infoPtr,COLORREF color)1960 TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
1961 {
1962 COLORREF prevColor = infoPtr->clrText;
1963
1964 TRACE("\n");
1965 infoPtr->clrText = color;
1966
1967 if (infoPtr->clrText != prevColor)
1968 TREEVIEW_Invalidate(infoPtr, NULL);
1969
1970 return (LRESULT)prevColor;
1971 }
1972
1973
1974 static LRESULT
TREEVIEW_GetBkColor(const TREEVIEW_INFO * infoPtr)1975 TREEVIEW_GetBkColor(const TREEVIEW_INFO *infoPtr)
1976 {
1977 TRACE("\n");
1978 return (LRESULT)infoPtr->clrBk;
1979 }
1980
1981 static LRESULT
TREEVIEW_SetBkColor(TREEVIEW_INFO * infoPtr,COLORREF newColor)1982 TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
1983 {
1984 COLORREF prevColor = infoPtr->clrBk;
1985
1986 TRACE("\n");
1987 infoPtr->clrBk = newColor;
1988
1989 if (newColor != prevColor)
1990 TREEVIEW_Invalidate(infoPtr, NULL);
1991
1992 return (LRESULT)prevColor;
1993 }
1994
1995
1996 static LRESULT
TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO * infoPtr)1997 TREEVIEW_GetInsertMarkColor(const TREEVIEW_INFO *infoPtr)
1998 {
1999 TRACE("\n");
2000 return (LRESULT)infoPtr->clrInsertMark;
2001 }
2002
2003 static LRESULT
TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO * infoPtr,COLORREF color)2004 TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
2005 {
2006 COLORREF prevColor = infoPtr->clrInsertMark;
2007
2008 TRACE("0x%08x\n", color);
2009 infoPtr->clrInsertMark = color;
2010
2011 return (LRESULT)prevColor;
2012 }
2013
2014
2015 static LRESULT
TREEVIEW_SetInsertMark(TREEVIEW_INFO * infoPtr,BOOL wParam,HTREEITEM item)2016 TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
2017 {
2018 TRACE("%d %p\n", wParam, item);
2019
2020 if (!TREEVIEW_ValidItem(infoPtr, item))
2021 return 0;
2022
2023 infoPtr->insertBeforeorAfter = wParam;
2024 infoPtr->insertMarkItem = item;
2025
2026 TREEVIEW_Invalidate(infoPtr, NULL);
2027
2028 return 1;
2029 }
2030
2031
2032 /************************************************************************
2033 * Some serious braindamage here. lParam is a pointer to both the
2034 * input HTREEITEM and the output RECT.
2035 */
2036 static LRESULT
TREEVIEW_GetItemRect(const TREEVIEW_INFO * infoPtr,BOOL fTextRect,LPRECT lpRect)2037 TREEVIEW_GetItemRect(const TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
2038 {
2039 TREEVIEW_ITEM *item;
2040 const HTREEITEM *pItem = (HTREEITEM *)lpRect;
2041
2042 TRACE("\n");
2043
2044 if (pItem == NULL)
2045 return FALSE;
2046
2047 item = *pItem;
2048 if (!TREEVIEW_ValidItem(infoPtr, item) || !ISVISIBLE(item))
2049 return FALSE;
2050
2051 /*
2052 * If wParam is TRUE return the text size otherwise return
2053 * the whole item size
2054 */
2055 if (fTextRect)
2056 {
2057 /* Windows does not send TVN_GETDISPINFO here. */
2058
2059 lpRect->top = item->rect.top;
2060 lpRect->bottom = item->rect.bottom;
2061
2062 lpRect->left = item->textOffset;
2063 if (!item->textWidth)
2064 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2065
2066 lpRect->right = item->textOffset + item->textWidth + 4;
2067 }
2068 else
2069 {
2070 *lpRect = item->rect;
2071 }
2072
2073 TRACE("%s [%s]\n", fTextRect ? "text" : "item", wine_dbgstr_rect(lpRect));
2074
2075 return TRUE;
2076 }
2077
2078 static inline LRESULT
TREEVIEW_GetVisibleCount(const TREEVIEW_INFO * infoPtr)2079 TREEVIEW_GetVisibleCount(const TREEVIEW_INFO *infoPtr)
2080 {
2081 /* Surprise! This does not take integral height into account. */
2082 TRACE("client=%d, item=%d\n", infoPtr->clientHeight, infoPtr->uItemHeight);
2083 return infoPtr->clientHeight / infoPtr->uItemHeight;
2084 }
2085
2086
2087 static LRESULT
TREEVIEW_GetItemT(const TREEVIEW_INFO * infoPtr,LPTVITEMEXW tvItem,BOOL isW)2088 TREEVIEW_GetItemT(const TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem, BOOL isW)
2089 {
2090 TREEVIEW_ITEM *item = tvItem->hItem;
2091
2092 if (!TREEVIEW_ValidItem(infoPtr, item))
2093 {
2094 BOOL valid_item = FALSE;
2095 if (!item) return FALSE;
2096
2097 __TRY
2098 {
2099 infoPtr = item->infoPtr;
2100 TRACE("got item from different tree %p, called from %p\n", item->infoPtr, infoPtr);
2101 valid_item = TREEVIEW_ValidItem(infoPtr, item);
2102 }
2103 __EXCEPT_PAGE_FAULT
2104 {
2105 }
2106 __ENDTRY
2107 if (!valid_item) return FALSE;
2108 }
2109
2110 TREEVIEW_UpdateDispInfo(infoPtr, item, tvItem->mask);
2111
2112 if (tvItem->mask & TVIF_CHILDREN)
2113 {
2114 if (item->cChildren==I_CHILDRENCALLBACK)
2115 FIXME("I_CHILDRENCALLBACK not supported\n");
2116 tvItem->cChildren = item->cChildren;
2117 }
2118
2119 if (tvItem->mask & TVIF_HANDLE)
2120 tvItem->hItem = item;
2121
2122 if (tvItem->mask & TVIF_IMAGE)
2123 tvItem->iImage = item->iImage;
2124
2125 if (tvItem->mask & TVIF_INTEGRAL)
2126 tvItem->iIntegral = item->iIntegral;
2127
2128 /* undocumented: (mask & TVIF_PARAM) ignored and lParam is always set */
2129 tvItem->lParam = item->lParam;
2130
2131 if (tvItem->mask & TVIF_SELECTEDIMAGE)
2132 tvItem->iSelectedImage = item->iSelectedImage;
2133
2134 if (tvItem->mask & TVIF_EXPANDEDIMAGE)
2135 tvItem->iExpandedImage = item->iExpandedImage;
2136
2137 /* undocumented: stateMask and (state & TVIF_STATE) ignored, so state is always set */
2138 tvItem->state = item->state;
2139
2140 if (tvItem->mask & TVIF_TEXT)
2141 {
2142 if (item->pszText == NULL)
2143 {
2144 if (tvItem->cchTextMax > 0)
2145 tvItem->pszText[0] = '\0';
2146 }
2147 else if (isW)
2148 {
2149 if (item->pszText == LPSTR_TEXTCALLBACKW)
2150 {
2151 tvItem->pszText = LPSTR_TEXTCALLBACKW;
2152 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2153 }
2154 else
2155 {
2156 lstrcpynW(tvItem->pszText, item->pszText, tvItem->cchTextMax);
2157 }
2158 }
2159 else
2160 {
2161 if (item->pszText == LPSTR_TEXTCALLBACKW)
2162 {
2163 tvItem->pszText = (LPWSTR)LPSTR_TEXTCALLBACKA;
2164 FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
2165 }
2166 else
2167 {
2168 WideCharToMultiByte(CP_ACP, 0, item->pszText, -1,
2169 (LPSTR)tvItem->pszText, tvItem->cchTextMax, NULL, NULL);
2170 }
2171 }
2172 }
2173
2174 if (tvItem->mask & TVIF_STATEEX)
2175 {
2176 FIXME("Extended item state not supported, returning 0.\n");
2177 tvItem->uStateEx = 0;
2178 }
2179
2180 TRACE("item <%p>, txt %p, img %d, mask 0x%x\n",
2181 item, tvItem->pszText, tvItem->iImage, tvItem->mask);
2182
2183 return TRUE;
2184 }
2185
2186 /* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
2187 * which is wrong. */
2188 static LRESULT
TREEVIEW_SetItemT(TREEVIEW_INFO * infoPtr,const TVITEMEXW * tvItem,BOOL isW)2189 TREEVIEW_SetItemT(TREEVIEW_INFO *infoPtr, const TVITEMEXW *tvItem, BOOL isW)
2190 {
2191 TREEVIEW_ITEM *item;
2192 TREEVIEW_ITEM originalItem;
2193
2194 item = tvItem->hItem;
2195
2196 TRACE("item %d, mask 0x%x\n", TREEVIEW_GetItemIndex(infoPtr, item),
2197 tvItem->mask);
2198
2199 if (!TREEVIEW_ValidItem(infoPtr, item))
2200 return FALSE;
2201
2202 /* Store the original item values. Text buffer will be freed in TREEVIEW_DoSetItemT() below. */
2203 originalItem = *item;
2204
2205 if (!TREEVIEW_DoSetItemT(infoPtr, item, tvItem, isW))
2206 return FALSE;
2207
2208 /* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
2209 if ((tvItem->mask & TVIF_TEXT
2210 || (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
2211 && ISVISIBLE(item))
2212 {
2213 TREEVIEW_UpdateDispInfo(infoPtr, item, TVIF_TEXT);
2214 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
2215 }
2216
2217 if (tvItem->mask != 0 && ISVISIBLE(item))
2218 {
2219 /* The refresh updates everything, but we can't wait until then. */
2220 TREEVIEW_ComputeItemInternalMetrics(infoPtr, item);
2221
2222 /* if any of the item's values changed and it's not a callback, redraw the item */
2223 if (item_changed(&originalItem, item, tvItem))
2224 {
2225 if (tvItem->mask & TVIF_INTEGRAL)
2226 {
2227 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
2228 TREEVIEW_UpdateScrollBars(infoPtr);
2229
2230 TREEVIEW_Invalidate(infoPtr, NULL);
2231 }
2232 else
2233 {
2234 TREEVIEW_UpdateScrollBars(infoPtr);
2235 TREEVIEW_Invalidate(infoPtr, item);
2236 }
2237 }
2238 }
2239
2240 return TRUE;
2241 }
2242
2243 static LRESULT
TREEVIEW_GetItemState(const TREEVIEW_INFO * infoPtr,HTREEITEM item,UINT mask)2244 TREEVIEW_GetItemState(const TREEVIEW_INFO *infoPtr, HTREEITEM item, UINT mask)
2245 {
2246 TRACE("\n");
2247
2248 if (!item || !TREEVIEW_ValidItem(infoPtr, item))
2249 return 0;
2250
2251 return (item->state & mask);
2252 }
2253
2254 static LRESULT
TREEVIEW_GetNextItem(const TREEVIEW_INFO * infoPtr,UINT which,HTREEITEM item)2255 TREEVIEW_GetNextItem(const TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM item)
2256 {
2257 TREEVIEW_ITEM *retval;
2258
2259 retval = 0;
2260
2261 /* handle all the global data here */
2262 switch (which)
2263 {
2264 case TVGN_CHILD: /* Special case: child of 0 is root */
2265 if (item)
2266 break;
2267 /* fall through */
2268 case TVGN_ROOT:
2269 retval = infoPtr->root->firstChild;
2270 break;
2271
2272 case TVGN_CARET:
2273 retval = infoPtr->selectedItem;
2274 break;
2275
2276 case TVGN_FIRSTVISIBLE:
2277 retval = infoPtr->firstVisible;
2278 break;
2279
2280 case TVGN_DROPHILITE:
2281 retval = infoPtr->dropItem;
2282 break;
2283
2284 case TVGN_LASTVISIBLE:
2285 retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
2286 break;
2287 }
2288
2289 if (retval)
2290 {
2291 TRACE("flags:0x%x, returns %p\n", which, retval);
2292 return (LRESULT)retval;
2293 }
2294
2295 if (item == TVI_ROOT) item = infoPtr->root;
2296
2297 if (!TREEVIEW_ValidItem(infoPtr, item))
2298 return FALSE;
2299
2300 switch (which)
2301 {
2302 case TVGN_NEXT:
2303 retval = item->nextSibling;
2304 break;
2305 case TVGN_PREVIOUS:
2306 retval = item->prevSibling;
2307 break;
2308 case TVGN_PARENT:
2309 retval = (item->parent != infoPtr->root) ? item->parent : NULL;
2310 break;
2311 case TVGN_CHILD:
2312 retval = item->firstChild;
2313 break;
2314 case TVGN_NEXTVISIBLE:
2315 retval = TREEVIEW_GetNextListItem(infoPtr, item);
2316 break;
2317 case TVGN_PREVIOUSVISIBLE:
2318 retval = TREEVIEW_GetPrevListItem(infoPtr, item);
2319 break;
2320 default:
2321 TRACE("Unknown msg 0x%x, item %p\n", which, item);
2322 break;
2323 }
2324
2325 TRACE("flags: 0x%x, item %p;returns %p\n", which, item, retval);
2326 return (LRESULT)retval;
2327 }
2328
2329
2330 static LRESULT
TREEVIEW_GetCount(const TREEVIEW_INFO * infoPtr)2331 TREEVIEW_GetCount(const TREEVIEW_INFO *infoPtr)
2332 {
2333 TRACE(" %d\n", infoPtr->uNumItems);
2334 return (LRESULT)infoPtr->uNumItems;
2335 }
2336
2337 #ifdef __REACTOS__
2338 static LRESULT
2339 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item);
2340 #endif
2341
2342 #ifdef __REACTOS__
2343 static VOID
TREEVIEW_ToggleItemState(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item)2344 TREEVIEW_ToggleItemState(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2345 #else
2346 static VOID
2347 TREEVIEW_ToggleItemState(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
2348 #endif
2349 {
2350 if (infoPtr->dwStyle & TVS_CHECKBOXES)
2351 {
2352 static const unsigned int state_table[] = { 0, 2, 1 };
2353
2354 unsigned int state;
2355
2356 state = STATEIMAGEINDEX(item->state);
2357 TRACE("state: 0x%x\n", state);
2358 item->state &= ~TVIS_STATEIMAGEMASK;
2359
2360 if (state < 3)
2361 state = state_table[state];
2362
2363 item->state |= INDEXTOSTATEIMAGEMASK(state);
2364
2365 TRACE("state: 0x%x\n", state);
2366 #ifdef __REACTOS__
2367 TREEVIEW_SelectItem(infoPtr, TVGN_CARET, item);
2368 #endif
2369 TREEVIEW_Invalidate(infoPtr, item);
2370 }
2371 }
2372
2373
2374 /* Painting *************************************************************/
2375
2376 /* Draw the lines and expand button for an item. Also draws one section
2377 * of the line from item's parent to item's parent's next sibling. */
2378 static void
TREEVIEW_DrawItemLines(const TREEVIEW_INFO * infoPtr,HDC hdc,const TREEVIEW_ITEM * item)2379 TREEVIEW_DrawItemLines(const TREEVIEW_INFO *infoPtr, HDC hdc, const TREEVIEW_ITEM *item)
2380 {
2381 LONG centerx, centery;
2382 BOOL lar = ((infoPtr->dwStyle
2383 & (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
2384 > TVS_LINESATROOT);
2385 HBRUSH hbr, hbrOld;
2386 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2387
2388 if (!lar && item->iLevel == 0)
2389 return;
2390
2391 hbr = CreateSolidBrush(clrBk);
2392 hbrOld = SelectObject(hdc, hbr);
2393
2394 centerx = (item->linesOffset + item->stateOffset) / 2;
2395 centery = (item->rect.top + item->rect.bottom) / 2;
2396
2397 if (infoPtr->dwStyle & TVS_HASLINES)
2398 {
2399 HPEN hOldPen, hNewPen;
2400 HTREEITEM parent;
2401 LOGBRUSH lb;
2402
2403 /* Get a dotted grey pen */
2404 lb.lbStyle = BS_SOLID;
2405 lb.lbColor = GETLINECOLOR(infoPtr->clrLine);
2406 hNewPen = ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lb, 0, NULL);
2407 hOldPen = SelectObject(hdc, hNewPen);
2408
2409 /* Make sure the center is on a dot (using +2 instead
2410 * of +1 gives us pixel-by-pixel compat with native) */
2411 centery = (centery + 2) & ~1;
2412
2413 MoveToEx(hdc, item->stateOffset, centery, NULL);
2414 LineTo(hdc, centerx - 1, centery);
2415
2416 if (item->prevSibling || item->parent != infoPtr->root)
2417 {
2418 MoveToEx(hdc, centerx, item->rect.top, NULL);
2419 LineTo(hdc, centerx, centery);
2420 }
2421
2422 if (item->nextSibling)
2423 {
2424 MoveToEx(hdc, centerx, centery, NULL);
2425 LineTo(hdc, centerx, item->rect.bottom + 1);
2426 }
2427
2428 /* Draw the line from our parent to its next sibling. */
2429 parent = item->parent;
2430 while (parent != infoPtr->root)
2431 {
2432 int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
2433
2434 if (parent->nextSibling
2435 /* skip top-levels unless TVS_LINESATROOT */
2436 && parent->stateOffset > parent->linesOffset)
2437 {
2438 MoveToEx(hdc, pcenterx, item->rect.top, NULL);
2439 LineTo(hdc, pcenterx, item->rect.bottom + 1);
2440 }
2441
2442 parent = parent->parent;
2443 }
2444
2445 SelectObject(hdc, hOldPen);
2446 DeleteObject(hNewPen);
2447 }
2448
2449 /*
2450 * Display the (+/-) signs
2451 */
2452
2453 if (infoPtr->dwStyle & TVS_HASBUTTONS)
2454 {
2455 if (item->cChildren)
2456 {
2457 HTHEME theme = GetWindowTheme(infoPtr->hwnd);
2458 if (theme)
2459 {
2460 RECT glyphRect = item->rect;
2461 glyphRect.left = item->linesOffset;
2462 glyphRect.right = item->stateOffset;
2463 DrawThemeBackground (theme, hdc, TVP_GLYPH,
2464 (item->state & TVIS_EXPANDED) ? GLPS_OPENED : GLPS_CLOSED,
2465 &glyphRect, NULL);
2466 }
2467 else
2468 {
2469 LONG height = item->rect.bottom - item->rect.top;
2470 LONG width = item->stateOffset - item->linesOffset;
2471 LONG rectsize = min(height, width) / 4;
2472 /* plussize = ceil(rectsize * 3/4) */
2473 LONG plussize = (rectsize + 1) * 3 / 4;
2474
2475 HPEN new_pen = CreatePen(PS_SOLID, 0, GETLINECOLOR(infoPtr->clrLine));
2476 HPEN old_pen = SelectObject(hdc, new_pen);
2477
2478 Rectangle(hdc, centerx - rectsize - 1, centery - rectsize - 1,
2479 centerx + rectsize + 2, centery + rectsize + 2);
2480
2481 SelectObject(hdc, old_pen);
2482 DeleteObject(new_pen);
2483
2484 /* draw +/- signs with current text color */
2485 new_pen = CreatePen(PS_SOLID, 0, GETTXTCOLOR(infoPtr->clrText));
2486 old_pen = SelectObject(hdc, new_pen);
2487
2488 if (height < 18 || width < 18)
2489 {
2490 MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
2491 LineTo(hdc, centerx + plussize, centery);
2492
2493 if (!(item->state & TVIS_EXPANDED) ||
2494 (item->state & TVIS_EXPANDPARTIAL))
2495 {
2496 MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
2497 LineTo(hdc, centerx, centery + plussize);
2498 }
2499 }
2500 else
2501 {
2502 Rectangle(hdc, centerx - plussize + 1, centery - 1,
2503 centerx + plussize, centery + 2);
2504
2505 if (!(item->state & TVIS_EXPANDED) ||
2506 (item->state & TVIS_EXPANDPARTIAL))
2507 {
2508 Rectangle(hdc, centerx - 1, centery - plussize + 1,
2509 centerx + 2, centery + plussize);
2510 SetPixel(hdc, centerx - 1, centery, clrBk);
2511 SetPixel(hdc, centerx + 1, centery, clrBk);
2512 }
2513 }
2514
2515 SelectObject(hdc, old_pen);
2516 DeleteObject(new_pen);
2517 }
2518 }
2519 }
2520 SelectObject(hdc, hbrOld);
2521 DeleteObject(hbr);
2522 }
2523
2524 static void
TREEVIEW_DrawItem(const TREEVIEW_INFO * infoPtr,HDC hdc,TREEVIEW_ITEM * item)2525 TREEVIEW_DrawItem(const TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
2526 {
2527 INT cditem;
2528 HFONT hOldFont;
2529 COLORREF oldTextColor, oldTextBkColor;
2530 int centery;
2531 BOOL inFocus = (GetFocus() == infoPtr->hwnd);
2532 NMTVCUSTOMDRAW nmcdhdr;
2533
2534 TREEVIEW_UpdateDispInfo(infoPtr, item, CALLBACK_MASK_ALL);
2535
2536 /* - If item is drop target or it is selected and window is in focus -
2537 * use blue background (COLOR_HIGHLIGHT).
2538 * - If item is selected, window is not in focus, but it has style
2539 * TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
2540 * - Otherwise - use background color
2541 */
2542 if ((item->state & TVIS_DROPHILITED) || ((item == infoPtr->focusedItem) && !(item->state & TVIS_SELECTED)) ||
2543 ((item->state & TVIS_SELECTED) && (!infoPtr->focusedItem || item == infoPtr->focusedItem) &&
2544 (inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
2545 {
2546 if ((item->state & TVIS_DROPHILITED) || inFocus)
2547 {
2548 nmcdhdr.clrTextBk = comctl32_color.clrHighlight;
2549 nmcdhdr.clrText = comctl32_color.clrHighlightText;
2550 }
2551 else
2552 {
2553 nmcdhdr.clrTextBk = comctl32_color.clrBtnFace;
2554 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2555 }
2556 }
2557 else
2558 {
2559 nmcdhdr.clrTextBk = GETBKCOLOR(infoPtr->clrBk);
2560 if ((infoPtr->dwStyle & TVS_TRACKSELECT) && (item == infoPtr->hotItem))
2561 nmcdhdr.clrText = comctl32_color.clrHighlight;
2562 else
2563 nmcdhdr.clrText = GETTXTCOLOR(infoPtr->clrText);
2564 }
2565
2566 hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
2567 oldTextColor = SetTextColor(hdc, nmcdhdr.clrText);
2568 oldTextBkColor = SetBkColor(hdc, nmcdhdr.clrTextBk);
2569
2570 /* The custom draw handler can query the text rectangle,
2571 * so get ready. */
2572 /* should already be known, set to 0 when changed */
2573 if (!item->textWidth)
2574 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2575
2576 cditem = 0;
2577
2578 if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
2579 {
2580 cditem = TREEVIEW_SendCustomDrawItemNotify
2581 (infoPtr, hdc, item, CDDS_ITEMPREPAINT, &nmcdhdr);
2582 TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
2583
2584 if (cditem & CDRF_SKIPDEFAULT)
2585 {
2586 SelectObject(hdc, hOldFont);
2587 return;
2588 }
2589 }
2590
2591 if (cditem & CDRF_NEWFONT)
2592 TREEVIEW_ComputeTextWidth(infoPtr, item, hdc);
2593
2594 if (TREEVIEW_IsFullRowSelect(infoPtr))
2595 {
2596 HBRUSH brush = CreateSolidBrush(nmcdhdr.clrTextBk);
2597 FillRect(hdc, &item->rect, brush);
2598 DeleteObject(brush);
2599 }
2600
2601 TREEVIEW_DrawItemLines(infoPtr, hdc, item);
2602
2603 /* reset colors. Custom draw handler can change them */
2604 SetTextColor(hdc, nmcdhdr.clrText);
2605 SetBkColor(hdc, nmcdhdr.clrTextBk);
2606
2607 centery = (item->rect.top + item->rect.bottom) / 2;
2608
2609 /*
2610 * Display the images associated with this item
2611 */
2612 {
2613 INT imageIndex;
2614
2615 /* State images are displayed to the left of the Normal image
2616 * image number is in state; zero should be `display no image'.
2617 */
2618 imageIndex = STATEIMAGEINDEX(item->state);
2619
2620 if (infoPtr->himlState && imageIndex)
2621 {
2622 ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
2623 item->stateOffset,
2624 centery - infoPtr->stateImageHeight / 2,
2625 ILD_NORMAL);
2626 }
2627
2628 /* Now, draw the normal image; can be either selected,
2629 * non-selected or expanded image.
2630 */
2631
2632 if ((item->state & TVIS_SELECTED) && (item->iSelectedImage >= 0))
2633 {
2634 /* The item is currently selected */
2635 imageIndex = item->iSelectedImage;
2636 }
2637 else if ((item->state & TVIS_EXPANDED) && (item->iExpandedImage != (WORD)I_IMAGENONE))
2638 {
2639 /* The item is currently not selected but expanded */
2640 imageIndex = item->iExpandedImage;
2641 }
2642 else
2643 {
2644 /* The item is not selected and not expanded */
2645 imageIndex = item->iImage;
2646 }
2647
2648 if (infoPtr->himlNormal)
2649 {
2650 UINT style = item->state & TVIS_CUT ? ILD_SELECTED : ILD_NORMAL;
2651
2652 style |= item->state & TVIS_OVERLAYMASK;
2653
2654 ImageList_DrawEx(infoPtr->himlNormal, imageIndex, hdc,
2655 item->imageOffset, centery - infoPtr->normalImageHeight / 2,
2656 0, 0,
2657 TREEVIEW_IsFullRowSelect(infoPtr) ? nmcdhdr.clrTextBk : infoPtr->clrBk,
2658 item->state & TVIS_CUT ? GETBKCOLOR(infoPtr->clrBk) : CLR_DEFAULT,
2659 style);
2660 }
2661 }
2662
2663
2664 /*
2665 * Display the text associated with this item
2666 */
2667
2668 /* Don't paint item's text if it's being edited */
2669 if (!infoPtr->hwndEdit || (infoPtr->selectedItem != item))
2670 {
2671 if (item->pszText)
2672 {
2673 RECT rcText;
2674 UINT align;
2675 SIZE sz;
2676
2677 rcText.top = item->rect.top;
2678 rcText.bottom = item->rect.bottom;
2679 rcText.left = item->textOffset;
2680 rcText.right = rcText.left + item->textWidth + 4;
2681
2682 TRACE("drawing text %s at (%s)\n",
2683 debugstr_w(item->pszText), wine_dbgstr_rect(&rcText));
2684
2685 /* Draw it */
2686 GetTextExtentPoint32W(hdc, item->pszText, lstrlenW(item->pszText), &sz);
2687
2688 align = SetTextAlign(hdc, TA_LEFT | TA_TOP);
2689 ExtTextOutW(hdc, rcText.left + 2, (rcText.top + rcText.bottom - sz.cy) / 2,
2690 ETO_CLIPPED | ETO_OPAQUE,
2691 &rcText,
2692 item->pszText,
2693 lstrlenW(item->pszText),
2694 NULL);
2695 SetTextAlign(hdc, align);
2696
2697 /* Draw focus box around the selected item */
2698 if ((item == infoPtr->selectedItem) && inFocus)
2699 {
2700 DrawFocusRect(hdc,&rcText);
2701 }
2702 }
2703 }
2704
2705 /* Draw insertion mark if necessary */
2706
2707 if (infoPtr->insertMarkItem)
2708 TRACE("item:%d,mark:%p\n",
2709 TREEVIEW_GetItemIndex(infoPtr, item),
2710 infoPtr->insertMarkItem);
2711
2712 if (item == infoPtr->insertMarkItem)
2713 {
2714 HPEN hNewPen, hOldPen;
2715 int offset;
2716 int left, right;
2717
2718 hNewPen = CreatePen(PS_SOLID, 2, GETINSCOLOR(infoPtr->clrInsertMark));
2719 hOldPen = SelectObject(hdc, hNewPen);
2720
2721 if (infoPtr->insertBeforeorAfter)
2722 offset = item->rect.bottom - 1;
2723 else
2724 offset = item->rect.top + 1;
2725
2726 left = item->textOffset - 2;
2727 right = item->textOffset + item->textWidth + 2;
2728
2729 MoveToEx(hdc, left, offset - 3, NULL);
2730 LineTo(hdc, left, offset + 4);
2731
2732 MoveToEx(hdc, left, offset, NULL);
2733 LineTo(hdc, right + 1, offset);
2734
2735 MoveToEx(hdc, right, offset + 3, NULL);
2736 LineTo(hdc, right, offset - 4);
2737
2738 SelectObject(hdc, hOldPen);
2739 DeleteObject(hNewPen);
2740 }
2741
2742 /* Restore the hdc state */
2743 SetTextColor(hdc, oldTextColor);
2744 SetBkColor(hdc, oldTextBkColor);
2745 SelectObject(hdc, hOldFont);
2746
2747 if (cditem & CDRF_NOTIFYPOSTPAINT)
2748 {
2749 cditem = TREEVIEW_SendCustomDrawItemNotify
2750 (infoPtr, hdc, item, CDDS_ITEMPOSTPAINT, &nmcdhdr);
2751 TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
2752 }
2753 }
2754
2755 /* Computes treeHeight and treeWidth and updates the scroll bars.
2756 */
2757 static void
TREEVIEW_UpdateScrollBars(TREEVIEW_INFO * infoPtr)2758 TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
2759 {
2760 TREEVIEW_ITEM *item;
2761 HWND hwnd = infoPtr->hwnd;
2762 BOOL vert = FALSE;
2763 BOOL horz = FALSE;
2764 SCROLLINFO si;
2765 LONG scrollX = infoPtr->scrollX;
2766
2767 infoPtr->treeWidth = 0;
2768 infoPtr->treeHeight = 0;
2769
2770 /* We iterate through all visible items in order to get the tree height
2771 * and width */
2772 item = infoPtr->root->firstChild;
2773
2774 while (item != NULL)
2775 {
2776 if (ISVISIBLE(item))
2777 {
2778 /* actually we draw text at textOffset + 2 */
2779 if (2+item->textOffset+item->textWidth > infoPtr->treeWidth)
2780 infoPtr->treeWidth = item->textOffset+item->textWidth+2;
2781
2782 /* This is scroll-adjusted, but we fix this below. */
2783 infoPtr->treeHeight = item->rect.bottom;
2784 }
2785
2786 item = TREEVIEW_GetNextListItem(infoPtr, item);
2787 }
2788
2789 /* Fix the scroll adjusted treeHeight and treeWidth. */
2790 if (infoPtr->root->firstChild)
2791 infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
2792
2793 infoPtr->treeWidth += infoPtr->scrollX;
2794
2795 if (infoPtr->dwStyle & TVS_NOSCROLL) return;
2796
2797 /* Adding one scroll bar may take up enough space that it forces us
2798 * to add the other as well. */
2799 if (infoPtr->treeHeight > infoPtr->clientHeight)
2800 {
2801 vert = TRUE;
2802
2803 if (infoPtr->treeWidth
2804 > infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
2805 horz = TRUE;
2806 }
2807 else if (infoPtr->treeWidth > infoPtr->clientWidth || infoPtr->scrollX > 0)
2808 horz = TRUE;
2809
2810 if (!vert && horz && infoPtr->treeHeight
2811 > infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
2812 vert = TRUE;
2813
2814 if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
2815
2816 si.cbSize = sizeof(SCROLLINFO);
2817 si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
2818 si.nMin = 0;
2819
2820 if (vert)
2821 {
2822 si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
2823 if ( si.nPage && NULL != infoPtr->firstVisible)
2824 {
2825 si.nPos = infoPtr->firstVisible->visibleOrder;
2826 si.nMax = infoPtr->maxVisibleOrder - 1;
2827
2828 SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
2829
2830 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
2831 ShowScrollBar(hwnd, SB_VERT, TRUE);
2832 infoPtr->uInternalStatus |= TV_VSCROLL;
2833 }
2834 else
2835 {
2836 if (infoPtr->uInternalStatus & TV_VSCROLL)
2837 ShowScrollBar(hwnd, SB_VERT, FALSE);
2838 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2839 }
2840 }
2841 else
2842 {
2843 if (infoPtr->uInternalStatus & TV_VSCROLL)
2844 ShowScrollBar(hwnd, SB_VERT, FALSE);
2845 infoPtr->uInternalStatus &= ~TV_VSCROLL;
2846 }
2847
2848 if (horz)
2849 {
2850 si.nPage = infoPtr->clientWidth;
2851 si.nPos = infoPtr->scrollX;
2852 si.nMax = infoPtr->treeWidth - 1;
2853
2854 if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
2855 {
2856 si.nPos = si.nMax - max( si.nPage-1, 0 );
2857 scrollX = si.nPos;
2858 }
2859
2860 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
2861 ShowScrollBar(hwnd, SB_HORZ, TRUE);
2862 infoPtr->uInternalStatus |= TV_HSCROLL;
2863
2864 SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
2865 TREEVIEW_HScroll(infoPtr,
2866 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2867 }
2868 else
2869 {
2870 if (infoPtr->uInternalStatus & TV_HSCROLL)
2871 ShowScrollBar(hwnd, SB_HORZ, FALSE);
2872 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2873
2874 scrollX = 0;
2875 if (infoPtr->scrollX != 0)
2876 {
2877 TREEVIEW_HScroll(infoPtr,
2878 MAKEWPARAM(SB_THUMBPOSITION, scrollX));
2879 }
2880 }
2881
2882 if (!horz)
2883 infoPtr->uInternalStatus &= ~TV_HSCROLL;
2884 }
2885
2886 static void
TREEVIEW_FillBkgnd(const TREEVIEW_INFO * infoPtr,HDC hdc,const RECT * rc)2887 TREEVIEW_FillBkgnd(const TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2888 {
2889 HBRUSH hBrush;
2890 COLORREF clrBk = GETBKCOLOR(infoPtr->clrBk);
2891
2892 hBrush = CreateSolidBrush(clrBk);
2893 FillRect(hdc, rc, hBrush);
2894 DeleteObject(hBrush);
2895 }
2896
2897 /* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
2898 static LRESULT
TREEVIEW_EraseBackground(const TREEVIEW_INFO * infoPtr,HDC hdc)2899 TREEVIEW_EraseBackground(const TREEVIEW_INFO *infoPtr, HDC hdc)
2900 {
2901 RECT rect;
2902
2903 TRACE("%p\n", infoPtr);
2904
2905 GetClientRect(infoPtr->hwnd, &rect);
2906 TREEVIEW_FillBkgnd(infoPtr, hdc, &rect);
2907
2908 return 1;
2909 }
2910
2911 static void
TREEVIEW_Refresh(TREEVIEW_INFO * infoPtr,HDC hdc,const RECT * rc)2912 TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, const RECT *rc)
2913 {
2914 HWND hwnd = infoPtr->hwnd;
2915 RECT rect = *rc;
2916 TREEVIEW_ITEM *item;
2917
2918 if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
2919 {
2920 TRACE("empty window\n");
2921 return;
2922 }
2923
2924 infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
2925 hdc, rect);
2926
2927 if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
2928 {
2929 ReleaseDC(hwnd, hdc);
2930 return;
2931 }
2932
2933 for (item = infoPtr->root->firstChild;
2934 item != NULL;
2935 item = TREEVIEW_GetNextListItem(infoPtr, item))
2936 {
2937 if (ISVISIBLE(item))
2938 {
2939 /* Avoid unneeded calculations */
2940 if (item->rect.top > rect.bottom)
2941 break;
2942 if (item->rect.bottom < rect.top)
2943 continue;
2944
2945 TREEVIEW_DrawItem(infoPtr, hdc, item);
2946 }
2947 }
2948
2949 //
2950 // FIXME: This is correct, but is causes and infinite loop of WM_PAINT
2951 // messages, resulting in continuous painting of the scroll bar in reactos.
2952 // Comment out until the real bug is found. CORE-4912
2953 //
2954 #ifndef __REACTOS__
2955 TREEVIEW_UpdateScrollBars(infoPtr);
2956 #endif
2957
2958 if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
2959 infoPtr->cdmode =
2960 TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
2961 }
2962
2963 static inline void
TREEVIEW_InvalidateItem(const TREEVIEW_INFO * infoPtr,const TREEVIEW_ITEM * item)2964 TREEVIEW_InvalidateItem(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2965 {
2966 if (item) InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2967 }
2968
2969 static void
TREEVIEW_Invalidate(const TREEVIEW_INFO * infoPtr,const TREEVIEW_ITEM * item)2970 TREEVIEW_Invalidate(const TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
2971 {
2972 if (item)
2973 InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
2974 else
2975 InvalidateRect(infoPtr->hwnd, NULL, TRUE);
2976 }
2977
2978 static void
TREEVIEW_InitCheckboxes(TREEVIEW_INFO * infoPtr)2979 TREEVIEW_InitCheckboxes(TREEVIEW_INFO *infoPtr)
2980 {
2981 RECT rc;
2982 HBITMAP hbm, hbmOld;
2983 HDC hdc, hdcScreen;
2984 int nIndex;
2985
2986 infoPtr->himlState = ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
2987
2988 hdcScreen = GetDC(0);
2989
2990 hdc = CreateCompatibleDC(hdcScreen);
2991 hbm = CreateCompatibleBitmap(hdcScreen, 48, 16);
2992 hbmOld = SelectObject(hdc, hbm);
2993
2994 SetRect(&rc, 0, 0, 48, 16);
2995 FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
2996
2997 SetRect(&rc, 18, 2, 30, 14);
2998 DrawFrameControl(hdc, &rc, DFC_BUTTON,
2999 DFCS_BUTTONCHECK|DFCS_FLAT);
3000
3001 SetRect(&rc, 34, 2, 46, 14);
3002 DrawFrameControl(hdc, &rc, DFC_BUTTON,
3003 DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
3004
3005 SelectObject(hdc, hbmOld);
3006 nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
3007 comctl32_color.clrWindow);
3008 TRACE("checkbox index %d\n", nIndex);
3009
3010 DeleteObject(hbm);
3011 DeleteDC(hdc);
3012 ReleaseDC(0, hdcScreen);
3013
3014 infoPtr->stateImageWidth = 16;
3015 infoPtr->stateImageHeight = 16;
3016 }
3017
3018 static void
TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item)3019 TREEVIEW_ResetImageStateIndex(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3020 {
3021 TREEVIEW_ITEM *child = item->firstChild;
3022
3023 item->state &= ~TVIS_STATEIMAGEMASK;
3024 item->state |= INDEXTOSTATEIMAGEMASK(1);
3025
3026 while (child)
3027 {
3028 TREEVIEW_ITEM *next = child->nextSibling;
3029 TREEVIEW_ResetImageStateIndex(infoPtr, child);
3030 child = next;
3031 }
3032 }
3033
3034 static LRESULT
TREEVIEW_Paint(TREEVIEW_INFO * infoPtr,HDC hdc_ref)3035 TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, HDC hdc_ref)
3036 {
3037 HDC hdc;
3038 PAINTSTRUCT ps;
3039 RECT rc;
3040
3041 TRACE("(%p %p)\n", infoPtr, hdc_ref);
3042
3043 if ((infoPtr->dwStyle & TVS_CHECKBOXES) && !infoPtr->himlState)
3044 {
3045 TREEVIEW_InitCheckboxes(infoPtr);
3046 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
3047
3048 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
3049 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
3050 TREEVIEW_UpdateScrollBars(infoPtr);
3051 TREEVIEW_Invalidate(infoPtr, NULL);
3052 }
3053
3054 if (hdc_ref)
3055 {
3056 hdc = hdc_ref;
3057 GetClientRect(infoPtr->hwnd, &rc);
3058 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3059 }
3060 else
3061 {
3062 hdc = BeginPaint(infoPtr->hwnd, &ps);
3063 rc = ps.rcPaint;
3064 if(ps.fErase)
3065 TREEVIEW_FillBkgnd(infoPtr, hdc, &rc);
3066 }
3067
3068 if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
3069 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3070
3071 if (!hdc_ref)
3072 EndPaint(infoPtr->hwnd, &ps);
3073
3074 return 0;
3075 }
3076
3077 static LRESULT
TREEVIEW_PrintClient(TREEVIEW_INFO * infoPtr,HDC hdc,DWORD options)3078 TREEVIEW_PrintClient(TREEVIEW_INFO *infoPtr, HDC hdc, DWORD options)
3079 {
3080 FIXME("Partial Stub: (hdc=%p options=0x%08x)\n", hdc, options);
3081
3082 if ((options & PRF_CHECKVISIBLE) && !IsWindowVisible(infoPtr->hwnd))
3083 return 0;
3084
3085 if (options & PRF_ERASEBKGND)
3086 TREEVIEW_EraseBackground(infoPtr, hdc);
3087
3088 if (options & PRF_CLIENT)
3089 {
3090 RECT rc;
3091 GetClientRect(infoPtr->hwnd, &rc);
3092 TREEVIEW_Refresh(infoPtr, hdc, &rc);
3093 }
3094
3095 return 0;
3096 }
3097
3098 /* Sorting **************************************************************/
3099
3100 /***************************************************************************
3101 * Forward the DPA local callback to the treeview owner callback
3102 */
3103 static INT WINAPI
TREEVIEW_CallBackCompare(const TREEVIEW_ITEM * first,const TREEVIEW_ITEM * second,const TVSORTCB * pCallBackSort)3104 TREEVIEW_CallBackCompare(const TREEVIEW_ITEM *first, const TREEVIEW_ITEM *second,
3105 const TVSORTCB *pCallBackSort)
3106 {
3107 /* Forward the call to the client-defined callback */
3108 return pCallBackSort->lpfnCompare(first->lParam,
3109 second->lParam,
3110 pCallBackSort->lParam);
3111 }
3112
3113 /***************************************************************************
3114 * Treeview native sort routine: sort on item text.
3115 */
3116 static INT WINAPI
TREEVIEW_SortOnName(TREEVIEW_ITEM * first,TREEVIEW_ITEM * second,const TREEVIEW_INFO * infoPtr)3117 TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
3118 const TREEVIEW_INFO *infoPtr)
3119 {
3120 TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
3121 TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
3122
3123 if(first->pszText && second->pszText)
3124 return lstrcmpiW(first->pszText, second->pszText);
3125 else if(first->pszText)
3126 return -1;
3127 else if(second->pszText)
3128 return 1;
3129 else
3130 return 0;
3131 }
3132
3133 /* Returns the number of physical children belonging to item. */
3134 static INT
TREEVIEW_CountChildren(const TREEVIEW_ITEM * item)3135 TREEVIEW_CountChildren(const TREEVIEW_ITEM *item)
3136 {
3137 INT cChildren = 0;
3138 HTREEITEM hti;
3139
3140 for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
3141 cChildren++;
3142
3143 return cChildren;
3144 }
3145
3146 /* Returns a DPA containing a pointer to each physical child of item in
3147 * sibling order. If item has no children, an empty DPA is returned. */
3148 static HDPA
TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM * item)3149 TREEVIEW_BuildChildDPA(const TREEVIEW_ITEM *item)
3150 {
3151 HTREEITEM child;
3152
3153 HDPA list = DPA_Create(8);
3154 if (list == 0) return NULL;
3155
3156 for (child = item->firstChild; child != NULL; child = child->nextSibling)
3157 {
3158 if (DPA_InsertPtr(list, INT_MAX, child) == -1)
3159 {
3160 DPA_Destroy(list);
3161 return NULL;
3162 }
3163 }
3164
3165 return list;
3166 }
3167
3168 /***************************************************************************
3169 * Setup the treeview structure with regards of the sort method
3170 * and sort the children of the TV item specified in lParam
3171 * fRecurse: currently unused. Should be zero.
3172 * parent: if pSort!=NULL, should equal pSort->hParent.
3173 * otherwise, item which child items are to be sorted.
3174 * pSort: sort method info. if NULL, sort on item text.
3175 * if non-NULL, sort on item's lParam content, and let the
3176 * application decide what that means. See also TVM_SORTCHILDRENCB.
3177 */
3178
3179 static LRESULT
TREEVIEW_Sort(TREEVIEW_INFO * infoPtr,HTREEITEM parent,LPTVSORTCB pSort)3180 TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, HTREEITEM parent,
3181 LPTVSORTCB pSort)
3182 {
3183 INT cChildren;
3184 PFNDPACOMPARE pfnCompare;
3185 LPARAM lpCompare;
3186
3187 /* undocumented feature: TVI_ROOT or NULL means `sort the whole tree' */
3188 if (parent == TVI_ROOT || parent == NULL)
3189 parent = infoPtr->root;
3190
3191 /* Check for a valid handle to the parent item */
3192 if (!TREEVIEW_ValidItem(infoPtr, parent))
3193 {
3194 ERR("invalid item hParent=%p\n", parent);
3195 return FALSE;
3196 }
3197
3198 if (pSort)
3199 {
3200 pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
3201 lpCompare = (LPARAM)pSort;
3202 }
3203 else
3204 {
3205 pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
3206 lpCompare = (LPARAM)infoPtr;
3207 }
3208
3209 cChildren = TREEVIEW_CountChildren(parent);
3210
3211 /* Make sure there is something to sort */
3212 if (cChildren > 1)
3213 {
3214 /* TREEVIEW_ITEM rechaining */
3215 INT count = 0;
3216 HTREEITEM item = 0;
3217 HTREEITEM nextItem = 0;
3218 HTREEITEM prevItem = 0;
3219
3220 HDPA sortList = TREEVIEW_BuildChildDPA(parent);
3221
3222 if (sortList == NULL)
3223 return FALSE;
3224
3225 /* let DPA sort the list */
3226 DPA_Sort(sortList, pfnCompare, lpCompare);
3227
3228 /* The order of DPA entries has been changed, so fixup the
3229 * nextSibling and prevSibling pointers. */
3230
3231 item = DPA_GetPtr(sortList, count++);
3232 while ((nextItem = DPA_GetPtr(sortList, count++)) != NULL)
3233 {
3234 /* link the two current item together */
3235 item->nextSibling = nextItem;
3236 nextItem->prevSibling = item;
3237
3238 if (prevItem == NULL)
3239 {
3240 /* this is the first item, update the parent */
3241 parent->firstChild = item;
3242 item->prevSibling = NULL;
3243 }
3244 else
3245 {
3246 /* fix the back chaining */
3247 item->prevSibling = prevItem;
3248 }
3249
3250 /* get ready for the next one */
3251 prevItem = item;
3252 item = nextItem;
3253 }
3254
3255 /* the last item is pointed to by item and never has a sibling */
3256 item->nextSibling = NULL;
3257 parent->lastChild = item;
3258
3259 DPA_Destroy(sortList);
3260
3261 TREEVIEW_VerifyTree(infoPtr);
3262
3263 if (parent->state & TVIS_EXPANDED)
3264 {
3265 int visOrder = infoPtr->firstVisible->visibleOrder;
3266
3267 if (parent == infoPtr->root)
3268 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
3269 else
3270 TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
3271
3272 if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
3273 {
3274 TREEVIEW_ITEM *item;
3275
3276 for (item = infoPtr->root->firstChild; item != NULL;
3277 item = TREEVIEW_GetNextListItem(infoPtr, item))
3278 {
3279 if (item->visibleOrder == visOrder)
3280 break;
3281 }
3282
3283 if (!item) item = parent->firstChild;
3284 TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
3285 }
3286
3287 TREEVIEW_Invalidate(infoPtr, NULL);
3288 }
3289
3290 return TRUE;
3291 }
3292 return FALSE;
3293 }
3294
3295
3296 /***************************************************************************
3297 * Setup the treeview structure with regards of the sort method
3298 * and sort the children of the TV item specified in lParam
3299 */
3300 static LRESULT
TREEVIEW_SortChildrenCB(TREEVIEW_INFO * infoPtr,LPTVSORTCB pSort)3301 TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, LPTVSORTCB pSort)
3302 {
3303 return TREEVIEW_Sort(infoPtr, pSort->hParent, pSort);
3304 }
3305
3306
3307 /***************************************************************************
3308 * Sort the children of the TV item specified in lParam.
3309 */
3310 static LRESULT
TREEVIEW_SortChildren(TREEVIEW_INFO * infoPtr,LPARAM lParam)3311 TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, LPARAM lParam)
3312 {
3313 return TREEVIEW_Sort(infoPtr, (HTREEITEM)lParam, NULL);
3314 }
3315
3316
3317 /* Expansion/Collapse ***************************************************/
3318
3319 static BOOL
TREEVIEW_SendExpanding(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item,UINT action)3320 TREEVIEW_SendExpanding(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3321 UINT action)
3322 {
3323 return !TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDINGW, action,
3324 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3325 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3326 0, item);
3327 }
3328
3329 static VOID
TREEVIEW_SendExpanded(const TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item,UINT action)3330 TREEVIEW_SendExpanded(const TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3331 UINT action)
3332 {
3333 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_ITEMEXPANDEDW, action,
3334 TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
3335 | TVIF_IMAGE | TVIF_SELECTEDIMAGE,
3336 0, item);
3337 }
3338
3339
3340 /* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
3341 * bRemoveChildren corresponds to TVE_COLLAPSERESET. */
3342 static BOOL
TREEVIEW_Collapse(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item,BOOL bRemoveChildren,BOOL bUser)3343 TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3344 BOOL bRemoveChildren, BOOL bUser)
3345 {
3346 UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
3347 BOOL bSetSelection, bSetFirstVisible;
3348 RECT scrollRect;
3349 LONG scrollDist = 0;
3350 TREEVIEW_ITEM *nextItem = NULL, *tmpItem;
3351 BOOL wasExpanded;
3352
3353 TRACE("TVE_COLLAPSE %p %s\n", item, TREEVIEW_ItemName(item));
3354
3355 if (!TREEVIEW_HasChildren(infoPtr, item))
3356 return FALSE;
3357
3358 if (bUser)
3359 TREEVIEW_SendExpanding(infoPtr, item, action);
3360
3361 if (item->firstChild == NULL)
3362 return FALSE;
3363
3364 wasExpanded = (item->state & TVIS_EXPANDED) != 0;
3365 item->state &= ~TVIS_EXPANDED;
3366
3367 if (wasExpanded && bUser)
3368 TREEVIEW_SendExpanded(infoPtr, item, action);
3369
3370 bSetSelection = (infoPtr->selectedItem != NULL
3371 && TREEVIEW_IsChildOf(item, infoPtr->selectedItem));
3372
3373 bSetFirstVisible = (infoPtr->firstVisible != NULL
3374 && TREEVIEW_IsChildOf(item, infoPtr->firstVisible));
3375
3376 tmpItem = item;
3377 while (tmpItem)
3378 {
3379 if (tmpItem->nextSibling)
3380 {
3381 nextItem = tmpItem->nextSibling;
3382 break;
3383 }
3384 tmpItem = tmpItem->parent;
3385 }
3386
3387 if (nextItem)
3388 scrollDist = nextItem->rect.top;
3389
3390 if (bRemoveChildren)
3391 {
3392 INT old_cChildren = item->cChildren;
3393 TRACE("TVE_COLLAPSERESET\n");
3394 item->state &= ~TVIS_EXPANDEDONCE;
3395 TREEVIEW_RemoveAllChildren(infoPtr, item);
3396 item->cChildren = old_cChildren;
3397 }
3398 if (!wasExpanded)
3399 return FALSE;
3400
3401 if (item->firstChild)
3402 {
3403 TREEVIEW_ITEM *i, *sibling;
3404
3405 sibling = TREEVIEW_GetNextListItem(infoPtr, item);
3406
3407 for (i = item->firstChild; i != sibling;
3408 i = TREEVIEW_GetNextListItem(infoPtr, i))
3409 {
3410 i->visibleOrder = -1;
3411 }
3412 }
3413
3414 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3415
3416 if (nextItem)
3417 scrollDist = -(scrollDist - nextItem->rect.top);
3418
3419 if (bSetSelection)
3420 {
3421 /* Don't call DoSelectItem, it sends notifications. */
3422 if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
3423 infoPtr->selectedItem->state &= ~TVIS_SELECTED;
3424 item->state |= TVIS_SELECTED;
3425 infoPtr->selectedItem = item;
3426 }
3427
3428 TREEVIEW_UpdateScrollBars(infoPtr);
3429
3430 scrollRect.left = 0;
3431 scrollRect.right = infoPtr->clientWidth;
3432 scrollRect.bottom = infoPtr->clientHeight;
3433
3434 if (nextItem)
3435 {
3436 scrollRect.top = nextItem->rect.top;
3437
3438 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, &scrollRect,
3439 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3440 TREEVIEW_Invalidate(infoPtr, item);
3441 } else {
3442 scrollRect.top = item->rect.top;
3443 InvalidateRect(infoPtr->hwnd, &scrollRect, TRUE);
3444 }
3445
3446 TREEVIEW_SetFirstVisible(infoPtr,
3447 bSetFirstVisible ? item : infoPtr->firstVisible,
3448 TRUE);
3449
3450 return wasExpanded;
3451 }
3452
3453 static BOOL
TREEVIEW_Expand(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item,BOOL partial,BOOL user)3454 TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item,
3455 BOOL partial, BOOL user)
3456 {
3457 LONG scrollDist;
3458 LONG orgNextTop = 0;
3459 RECT scrollRect;
3460 TREEVIEW_ITEM *nextItem, *tmpItem;
3461 BOOL sendsNotifications;
3462
3463 TRACE("(%p, %p, partial=%d, %d)\n", infoPtr, item, partial, user);
3464
3465 if (!TREEVIEW_HasChildren(infoPtr, item))
3466 return FALSE;
3467
3468 tmpItem = item; nextItem = NULL;
3469 while (tmpItem)
3470 {
3471 if (tmpItem->nextSibling)
3472 {
3473 nextItem = tmpItem->nextSibling;
3474 break;
3475 }
3476 tmpItem = tmpItem->parent;
3477 }
3478
3479 if (nextItem)
3480 orgNextTop = nextItem->rect.top;
3481
3482 TRACE("TVE_EXPAND %p %s\n", item, TREEVIEW_ItemName(item));
3483
3484 sendsNotifications = user || ((item->cChildren != 0) &&
3485 !(item->state & TVIS_EXPANDEDONCE));
3486 if (sendsNotifications)
3487 {
3488 if (!TREEVIEW_SendExpanding(infoPtr, item, TVE_EXPAND))
3489 {
3490 TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
3491 return FALSE;
3492 }
3493 }
3494 if (!item->firstChild)
3495 return FALSE;
3496
3497 item->state |= TVIS_EXPANDED;
3498
3499 if (partial)
3500 FIXME("TVE_EXPANDPARTIAL not implemented\n");
3501
3502 if (ISVISIBLE(item))
3503 {
3504 TREEVIEW_RecalculateVisibleOrder(infoPtr, item);
3505 TREEVIEW_UpdateSubTree(infoPtr, item);
3506 TREEVIEW_UpdateScrollBars(infoPtr);
3507
3508 scrollRect.left = 0;
3509 scrollRect.bottom = infoPtr->treeHeight;
3510 scrollRect.right = infoPtr->clientWidth;
3511 if (nextItem)
3512 {
3513 scrollDist = nextItem->rect.top - orgNextTop;
3514 scrollRect.top = orgNextTop;
3515
3516 ScrollWindowEx (infoPtr->hwnd, 0, scrollDist, &scrollRect, NULL,
3517 NULL, NULL, SW_ERASE | SW_INVALIDATE);
3518 TREEVIEW_Invalidate (infoPtr, item);
3519 } else {
3520 scrollRect.top = item->rect.top;
3521 InvalidateRect(infoPtr->hwnd, &scrollRect, FALSE);
3522 }
3523
3524 /* Scroll up so that as many children as possible are visible.
3525 * This fails when expanding causes an HScroll bar to appear, but we
3526 * don't know that yet, so the last item is obscured. */
3527 if (item->firstChild != NULL)
3528 {
3529 int nChildren = item->lastChild->visibleOrder
3530 - item->firstChild->visibleOrder + 1;
3531
3532 int visible_pos = item->visibleOrder
3533 - infoPtr->firstVisible->visibleOrder;
3534
3535 int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
3536
3537 if (visible_pos > 0 && nChildren > rows_below)
3538 {
3539 int scroll = nChildren - rows_below;
3540
3541 if (scroll > visible_pos)
3542 scroll = visible_pos;
3543
3544 if (scroll > 0)
3545 {
3546 TREEVIEW_ITEM *newFirstVisible
3547 = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
3548 scroll);
3549
3550
3551 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
3552 }
3553 }
3554 }
3555 }
3556
3557 if (sendsNotifications) {
3558 TREEVIEW_SendExpanded(infoPtr, item, TVE_EXPAND);
3559 item->state |= TVIS_EXPANDEDONCE;
3560 }
3561
3562 return TRUE;
3563 }
3564
3565 /* Handler for TVS_SINGLEEXPAND behaviour. Used on response
3566 to mouse messages and TVM_SELECTITEM.
3567
3568 selection - previously selected item, used to collapse a part of a tree
3569 item - new selected item
3570 */
TREEVIEW_SingleExpand(TREEVIEW_INFO * infoPtr,HTREEITEM selection,HTREEITEM item)3571 static void TREEVIEW_SingleExpand(TREEVIEW_INFO *infoPtr,
3572 HTREEITEM selection, HTREEITEM item)
3573 {
3574 TREEVIEW_ITEM *prev, *curr;
3575
3576 if ((infoPtr->dwStyle & TVS_SINGLEEXPAND) == 0 || infoPtr->hwndEdit || !item) return;
3577
3578 TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVC_UNKNOWN, TVIF_HANDLE | TVIF_PARAM, item, 0);
3579
3580 /*
3581 * Close the previous item and its ancestors as long as they are not
3582 * ancestors of the current item
3583 */
3584 for (prev = selection; prev && TREEVIEW_ValidItem(infoPtr, prev); prev = prev->parent)
3585 {
3586 for (curr = item; curr && TREEVIEW_ValidItem(infoPtr, curr); curr = curr->parent)
3587 {
3588 if (curr == prev)
3589 goto finish;
3590 }
3591 TREEVIEW_Collapse(infoPtr, prev, FALSE, TRUE);
3592 }
3593
3594 finish:
3595 /*
3596 * Expand the current item
3597 */
3598 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3599 }
3600
3601 static BOOL
TREEVIEW_Toggle(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item,BOOL user)3602 TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, BOOL user)
3603 {
3604 TRACE("item=%p, user=%d\n", item, user);
3605
3606 if (item->state & TVIS_EXPANDED)
3607 return TREEVIEW_Collapse(infoPtr, item, FALSE, user);
3608 else
3609 return TREEVIEW_Expand(infoPtr, item, FALSE, user);
3610 }
3611
3612 static VOID
TREEVIEW_ExpandAll(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * item)3613 TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
3614 {
3615 TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
3616
3617 for (item = item->firstChild; item != NULL; item = item->nextSibling)
3618 {
3619 if (TREEVIEW_HasChildren(infoPtr, item))
3620 TREEVIEW_ExpandAll(infoPtr, item);
3621 }
3622 }
3623
3624 /* Note:If the specified item is the child of a collapsed parent item,
3625 the parent's list of child items is (recursively) expanded to reveal the
3626 specified item. This is mentioned for TREEVIEW_SelectItem; don't
3627 know if it also applies here.
3628 */
3629
3630 static LRESULT
TREEVIEW_ExpandMsg(TREEVIEW_INFO * infoPtr,UINT flag,HTREEITEM item)3631 TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM item)
3632 {
3633 if (!TREEVIEW_ValidItem(infoPtr, item))
3634 return 0;
3635
3636 TRACE("For (%s) item:%d, flags 0x%x, state:%d\n",
3637 TREEVIEW_ItemName(item), TREEVIEW_GetItemIndex(infoPtr, item),
3638 flag, item->state);
3639
3640 switch (flag & TVE_TOGGLE)
3641 {
3642 case TVE_COLLAPSE:
3643 return TREEVIEW_Collapse(infoPtr, item, flag & TVE_COLLAPSERESET,
3644 FALSE);
3645
3646 case TVE_EXPAND:
3647 return TREEVIEW_Expand(infoPtr, item, flag & TVE_EXPANDPARTIAL,
3648 FALSE);
3649
3650 case TVE_TOGGLE:
3651 return TREEVIEW_Toggle(infoPtr, item, FALSE);
3652
3653 default:
3654 return 0;
3655 }
3656 }
3657
3658 /* Hit-Testing **********************************************************/
3659
3660 static TREEVIEW_ITEM *
TREEVIEW_HitTestPoint(const TREEVIEW_INFO * infoPtr,POINT pt)3661 TREEVIEW_HitTestPoint(const TREEVIEW_INFO *infoPtr, POINT pt)
3662 {
3663 TREEVIEW_ITEM *item;
3664 LONG row;
3665
3666 if (!infoPtr->firstVisible)
3667 return NULL;
3668
3669 row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
3670
3671 for (item = infoPtr->firstVisible; item != NULL;
3672 item = TREEVIEW_GetNextListItem(infoPtr, item))
3673 {
3674 if (row >= item->visibleOrder
3675 && row < item->visibleOrder + item->iIntegral)
3676 break;
3677 }
3678
3679 return item;
3680 }
3681
3682 static TREEVIEW_ITEM *
TREEVIEW_HitTest(const TREEVIEW_INFO * infoPtr,LPTVHITTESTINFO lpht)3683 TREEVIEW_HitTest(const TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
3684 {
3685 TREEVIEW_ITEM *item;
3686 RECT rect;
3687 UINT status;
3688 LONG x, y;
3689
3690 lpht->hItem = 0;
3691 GetClientRect(infoPtr->hwnd, &rect);
3692 status = 0;
3693 x = lpht->pt.x;
3694 y = lpht->pt.y;
3695
3696 if (x < rect.left)
3697 {
3698 status |= TVHT_TOLEFT;
3699 }
3700 else if (x > rect.right)
3701 {
3702 status |= TVHT_TORIGHT;
3703 }
3704
3705 if (y < rect.top)
3706 {
3707 status |= TVHT_ABOVE;
3708 }
3709 else if (y > rect.bottom)
3710 {
3711 status |= TVHT_BELOW;
3712 }
3713
3714 if (status)
3715 {
3716 lpht->flags = status;
3717 return NULL;
3718 }
3719
3720 item = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
3721 if (!item)
3722 {
3723 lpht->flags = TVHT_NOWHERE;
3724 return NULL;
3725 }
3726
3727 if (!item->textWidth)
3728 TREEVIEW_ComputeTextWidth(infoPtr, item, 0);
3729
3730 if (x >= item->textOffset + item->textWidth)
3731 {
3732 lpht->flags = TVHT_ONITEMRIGHT;
3733 }
3734 else if (x >= item->textOffset)
3735 {
3736 lpht->flags = TVHT_ONITEMLABEL;
3737 }
3738 else if (x >= item->imageOffset)
3739 {
3740 lpht->flags = TVHT_ONITEMICON;
3741 }
3742 else if (x >= item->stateOffset)
3743 {
3744 lpht->flags = TVHT_ONITEMSTATEICON;
3745 }
3746 else if (x >= item->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
3747 {
3748 lpht->flags = TVHT_ONITEMBUTTON;
3749 }
3750 else
3751 {
3752 lpht->flags = TVHT_ONITEMINDENT;
3753 }
3754
3755 lpht->hItem = item;
3756 TRACE("(%d,%d):result 0x%x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
3757
3758 return item;
3759 }
3760
3761 /* Item Label Editing ***************************************************/
3762
3763 static LRESULT
TREEVIEW_GetEditControl(const TREEVIEW_INFO * infoPtr)3764 TREEVIEW_GetEditControl(const TREEVIEW_INFO *infoPtr)
3765 {
3766 return (LRESULT)infoPtr->hwndEdit;
3767 }
3768
3769 static LRESULT CALLBACK
TREEVIEW_Edit_SubclassProc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam)3770 TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
3771 {
3772 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
3773 BOOL bCancel = FALSE;
3774 LRESULT rc;
3775
3776 switch (uMsg)
3777 {
3778 case WM_PAINT:
3779 TRACE("WM_PAINT start\n");
3780 rc = CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
3781 lParam);
3782 TRACE("WM_PAINT done\n");
3783 return rc;
3784
3785 case WM_KILLFOCUS:
3786 if (infoPtr->bIgnoreEditKillFocus)
3787 return TRUE;
3788 break;
3789
3790 case WM_DESTROY:
3791 {
3792 WNDPROC editProc = infoPtr->wpEditOrig;
3793 infoPtr->wpEditOrig = 0;
3794 SetWindowLongPtrW(hwnd, GWLP_WNDPROC, (DWORD_PTR)editProc);
3795 return CallWindowProcW(editProc, hwnd, uMsg, wParam, lParam);
3796 }
3797
3798 case WM_GETDLGCODE:
3799 return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
3800
3801 case WM_KEYDOWN:
3802 if (wParam == VK_ESCAPE)
3803 {
3804 bCancel = TRUE;
3805 break;
3806 }
3807 else if (wParam == VK_RETURN)
3808 {
3809 break;
3810 }
3811
3812 /* fall through */
3813 default:
3814 return CallWindowProcW(infoPtr->wpEditOrig, hwnd, uMsg, wParam, lParam);
3815 }
3816
3817 /* Processing TVN_ENDLABELEDIT message could kill the focus */
3818 /* eg. Using a messagebox */
3819
3820 infoPtr->bIgnoreEditKillFocus = TRUE;
3821 TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
3822 infoPtr->bIgnoreEditKillFocus = FALSE;
3823
3824 return 0;
3825 }
3826
3827
3828 /* should handle edit control messages here */
3829
3830 static LRESULT
TREEVIEW_Command(TREEVIEW_INFO * infoPtr,WPARAM wParam,LPARAM lParam)3831 TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
3832 {
3833 TRACE("code=0x%x, id=0x%x, handle=0x%lx\n", HIWORD(wParam), LOWORD(wParam), lParam);
3834
3835 switch (HIWORD(wParam))
3836 {
3837 case EN_UPDATE:
3838 {
3839 /*
3840 * Adjust the edit window size
3841 */
3842 WCHAR buffer[1024];
3843 TREEVIEW_ITEM *editItem = infoPtr->editItem;
3844 HDC hdc = GetDC(infoPtr->hwndEdit);
3845 SIZE sz;
3846 HFONT hFont, hOldFont = 0;
3847
3848 TRACE("edit=%p\n", infoPtr->hwndEdit);
3849
3850 if (!IsWindow(infoPtr->hwndEdit) || !hdc) return FALSE;
3851
3852 infoPtr->bLabelChanged = TRUE;
3853
3854 GetWindowTextW(infoPtr->hwndEdit, buffer, ARRAY_SIZE(buffer));
3855
3856 /* Select font to get the right dimension of the string */
3857 hFont = (HFONT)SendMessageW(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
3858
3859 if (hFont != 0)
3860 {
3861 hOldFont = SelectObject(hdc, hFont);
3862 }
3863
3864 if (GetTextExtentPoint32W(hdc, buffer, lstrlenW(buffer), &sz))
3865 {
3866 TEXTMETRICW textMetric;
3867
3868 /* Add Extra spacing for the next character */
3869 GetTextMetricsW(hdc, &textMetric);
3870 sz.cx += (textMetric.tmMaxCharWidth * 2);
3871
3872 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3873 sz.cx = min(sz.cx,
3874 infoPtr->clientWidth - editItem->textOffset + 2);
3875
3876 SetWindowPos(infoPtr->hwndEdit,
3877 HWND_TOP,
3878 0,
3879 0,
3880 sz.cx,
3881 editItem->rect.bottom - editItem->rect.top + 3,
3882 SWP_NOMOVE | SWP_DRAWFRAME);
3883 }
3884
3885 if (hFont != 0)
3886 {
3887 SelectObject(hdc, hOldFont);
3888 }
3889
3890 ReleaseDC(infoPtr->hwnd, hdc);
3891 break;
3892 }
3893 case EN_KILLFOCUS:
3894 /* apparently we should respect passed handle value */
3895 if (infoPtr->hwndEdit != (HWND)lParam) return FALSE;
3896
3897 TREEVIEW_EndEditLabelNow(infoPtr, FALSE);
3898 break;
3899
3900 default:
3901 return SendMessageW(infoPtr->hwndNotify, WM_COMMAND, wParam, lParam);
3902 }
3903
3904 return 0;
3905 }
3906
3907 static HWND
TREEVIEW_EditLabel(TREEVIEW_INFO * infoPtr,HTREEITEM hItem)3908 TREEVIEW_EditLabel(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
3909 {
3910 HWND hwnd = infoPtr->hwnd;
3911 HWND hwndEdit;
3912 SIZE sz;
3913 HINSTANCE hinst = (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE);
3914 HDC hdc;
3915 HFONT hOldFont=0;
3916 TEXTMETRICW textMetric;
3917
3918 TRACE("%p %p\n", hwnd, hItem);
3919 if (!(infoPtr->dwStyle & TVS_EDITLABELS))
3920 return NULL;
3921
3922 if (!TREEVIEW_ValidItem(infoPtr, hItem))
3923 return NULL;
3924
3925 if (infoPtr->hwndEdit)
3926 return infoPtr->hwndEdit;
3927
3928 infoPtr->bLabelChanged = FALSE;
3929
3930 /* make edit item visible */
3931 TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
3932
3933 TREEVIEW_UpdateDispInfo(infoPtr, hItem, TVIF_TEXT);
3934
3935 hdc = GetDC(hwnd);
3936 /* Select the font to get appropriate metric dimensions */
3937 if (infoPtr->hFont != 0)
3938 {
3939 hOldFont = SelectObject(hdc, infoPtr->hFont);
3940 }
3941
3942 /* Get string length in pixels */
3943 if (hItem->pszText)
3944 GetTextExtentPoint32W(hdc, hItem->pszText, lstrlenW(hItem->pszText),
3945 &sz);
3946 else
3947 GetTextExtentPoint32A(hdc, "", 0, &sz);
3948
3949 /* Add Extra spacing for the next character */
3950 GetTextMetricsW(hdc, &textMetric);
3951 sz.cx += (textMetric.tmMaxCharWidth * 2);
3952
3953 sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
3954 sz.cx = min(sz.cx, infoPtr->clientWidth - hItem->textOffset + 2);
3955
3956 if (infoPtr->hFont != 0)
3957 {
3958 SelectObject(hdc, hOldFont);
3959 }
3960
3961 ReleaseDC(hwnd, hdc);
3962
3963 infoPtr->editItem = hItem;
3964
3965 hwndEdit = CreateWindowExW(WS_EX_LEFT,
3966 WC_EDITW,
3967 0,
3968 WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
3969 WS_CLIPSIBLINGS | ES_WANTRETURN |
3970 ES_LEFT, hItem->textOffset - 2,
3971 hItem->rect.top - 1, sz.cx + 3,
3972 hItem->rect.bottom -
3973 hItem->rect.top + 3, hwnd, 0, hinst, 0);
3974 /* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
3975
3976 infoPtr->hwndEdit = hwndEdit;
3977
3978 /* Get a 2D border. */
3979 SetWindowLongW(hwndEdit, GWL_EXSTYLE,
3980 GetWindowLongW(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
3981 SetWindowLongW(hwndEdit, GWL_STYLE,
3982 GetWindowLongW(hwndEdit, GWL_STYLE) | WS_BORDER);
3983
3984 SendMessageW(hwndEdit, WM_SETFONT,
3985 (WPARAM)TREEVIEW_FontForItem(infoPtr, hItem), FALSE);
3986
3987 infoPtr->wpEditOrig = (WNDPROC)SetWindowLongPtrW(hwndEdit, GWLP_WNDPROC,
3988 (DWORD_PTR)
3989 TREEVIEW_Edit_SubclassProc);
3990 SendMessageW(hwndEdit, EM_SETLIMITTEXT, MAX_PATH - 1, 0);
3991 if (hItem->pszText)
3992 SetWindowTextW(hwndEdit, hItem->pszText);
3993
3994 if (TREEVIEW_BeginLabelEditNotify(infoPtr, hItem))
3995 {
3996 DestroyWindow(hwndEdit);
3997 infoPtr->hwndEdit = 0;
3998 infoPtr->editItem = NULL;
3999 return NULL;
4000 }
4001
4002 SetFocus(hwndEdit);
4003 SendMessageW(hwndEdit, EM_SETSEL, 0, -1);
4004 ShowWindow(hwndEdit, SW_SHOW);
4005
4006 return hwndEdit;
4007 }
4008
4009
4010 static LRESULT
TREEVIEW_EndEditLabelNow(TREEVIEW_INFO * infoPtr,BOOL bCancel)4011 TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
4012 {
4013 TREEVIEW_ITEM *editedItem = infoPtr->editItem;
4014 NMTVDISPINFOW tvdi;
4015 BOOL bCommit;
4016 WCHAR tmpText[MAX_PATH] = { '\0' };
4017 WCHAR *newText;
4018 int iLength = 0;
4019
4020 if (!IsWindow(infoPtr->hwndEdit)) return FALSE;
4021
4022 tvdi.item.mask = 0;
4023 tvdi.item.hItem = editedItem;
4024 tvdi.item.state = editedItem->state;
4025 tvdi.item.lParam = editedItem->lParam;
4026
4027 if (!bCancel)
4028 {
4029 if (!infoPtr->bNtfUnicode)
4030 iLength = GetWindowTextA(infoPtr->hwndEdit, (LPSTR)tmpText, ARRAY_SIZE(tmpText));
4031 else
4032 iLength = GetWindowTextW(infoPtr->hwndEdit, tmpText, ARRAY_SIZE(tmpText));
4033
4034 tvdi.item.mask = TVIF_TEXT;
4035 tvdi.item.pszText = tmpText;
4036 tvdi.item.cchTextMax = ARRAY_SIZE(tmpText);
4037 }
4038 else
4039 {
4040 tvdi.item.pszText = NULL;
4041 tvdi.item.cchTextMax = 0;
4042 }
4043
4044 bCommit = TREEVIEW_SendRealNotify(infoPtr, TVN_ENDLABELEDITW, &tvdi.hdr);
4045
4046 if (!bCancel && bCommit) /* Apply the changes */
4047 {
4048 if (!infoPtr->bNtfUnicode)
4049 {
4050 DWORD len = MultiByteToWideChar( CP_ACP, 0, (LPSTR)tvdi.item.pszText, -1, NULL, 0 );
4051 newText = heap_alloc(len * sizeof(WCHAR));
4052 MultiByteToWideChar( CP_ACP, 0, (LPSTR)tvdi.item.pszText, -1, newText, len );
4053 iLength = len - 1;
4054 }
4055 else
4056 newText = tvdi.item.pszText;
4057
4058 if (lstrcmpW(newText, editedItem->pszText) != 0)
4059 {
4060 WCHAR *ptr = heap_realloc(editedItem->pszText, sizeof(WCHAR)*(iLength + 1));
4061 if (ptr == NULL)
4062 {
4063 ERR("OutOfMemory, cannot allocate space for label\n");
4064 if (newText != tmpText) heap_free(newText);
4065 DestroyWindow(infoPtr->hwndEdit);
4066 infoPtr->hwndEdit = 0;
4067 infoPtr->editItem = NULL;
4068 return FALSE;
4069 }
4070 else
4071 {
4072 editedItem->pszText = ptr;
4073 editedItem->cchTextMax = iLength + 1;
4074 lstrcpyW(editedItem->pszText, newText);
4075 TREEVIEW_ComputeTextWidth(infoPtr, editedItem, 0);
4076 }
4077 }
4078 if (newText != tmpText) heap_free(newText);
4079 }
4080
4081 ShowWindow(infoPtr->hwndEdit, SW_HIDE);
4082 DestroyWindow(infoPtr->hwndEdit);
4083 infoPtr->hwndEdit = 0;
4084 infoPtr->editItem = NULL;
4085 return TRUE;
4086 }
4087
4088 static LRESULT
TREEVIEW_HandleTimer(TREEVIEW_INFO * infoPtr,WPARAM wParam)4089 TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4090 {
4091 if (wParam != TV_EDIT_TIMER)
4092 {
4093 ERR("got unknown timer\n");
4094 return 1;
4095 }
4096
4097 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4098 infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
4099
4100 TREEVIEW_EditLabel(infoPtr, infoPtr->selectedItem);
4101
4102 return 0;
4103 }
4104
4105
4106 /* Mouse Tracking/Drag **************************************************/
4107
4108 /***************************************************************************
4109 * This is quite unusual piece of code, but that's how it's implemented in
4110 * Windows.
4111 */
4112 static LRESULT
TREEVIEW_TrackMouse(const TREEVIEW_INFO * infoPtr,POINT pt)4113 TREEVIEW_TrackMouse(const TREEVIEW_INFO *infoPtr, POINT pt)
4114 {
4115 INT cxDrag = GetSystemMetrics(SM_CXDRAG);
4116 INT cyDrag = GetSystemMetrics(SM_CYDRAG);
4117 RECT r;
4118 MSG msg;
4119
4120 r.top = pt.y - cyDrag;
4121 r.left = pt.x - cxDrag;
4122 r.bottom = pt.y + cyDrag;
4123 r.right = pt.x + cxDrag;
4124
4125 SetCapture(infoPtr->hwnd);
4126
4127 while (1)
4128 {
4129 if (PeekMessageW(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
4130 {
4131 if (msg.message == WM_MOUSEMOVE)
4132 {
4133 pt.x = (short)LOWORD(msg.lParam);
4134 pt.y = (short)HIWORD(msg.lParam);
4135 if (PtInRect(&r, pt))
4136 continue;
4137 else
4138 {
4139 ReleaseCapture();
4140 return 1;
4141 }
4142 }
4143 else if (msg.message >= WM_LBUTTONDOWN &&
4144 msg.message <= WM_RBUTTONDBLCLK)
4145 {
4146 break;
4147 }
4148
4149 DispatchMessageW(&msg);
4150 }
4151
4152 if (GetCapture() != infoPtr->hwnd)
4153 return 0;
4154 }
4155
4156 ReleaseCapture();
4157 return 0;
4158 }
4159
4160
4161 static LRESULT
TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO * infoPtr,LPARAM lParam)4162 TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4163 {
4164 TREEVIEW_ITEM *item;
4165 TVHITTESTINFO hit;
4166
4167 TRACE("\n");
4168 SetFocus(infoPtr->hwnd);
4169
4170 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4171 {
4172 /* If there is pending 'edit label' event - kill it now */
4173 KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
4174 }
4175
4176 hit.pt.x = (short)LOWORD(lParam);
4177 hit.pt.y = (short)HIWORD(lParam);
4178
4179 item = TREEVIEW_HitTest(infoPtr, &hit);
4180 if (!item)
4181 return 0;
4182 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, item));
4183
4184 if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
4185 { /* FIXME! */
4186 switch (hit.flags)
4187 {
4188 case TVHT_ONITEMRIGHT:
4189 /* FIXME: we should not have sent NM_DBLCLK in this case. */
4190 break;
4191
4192 case TVHT_ONITEMINDENT:
4193 if (!(infoPtr->dwStyle & TVS_HASLINES))
4194 {
4195 break;
4196 }
4197 else
4198 {
4199 int level = hit.pt.x / infoPtr->uIndent;
4200 if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
4201
4202 while (item->iLevel > level)
4203 {
4204 item = item->parent;
4205 }
4206
4207 /* fall through */
4208 }
4209
4210 case TVHT_ONITEMLABEL:
4211 case TVHT_ONITEMICON:
4212 case TVHT_ONITEMBUTTON:
4213 TREEVIEW_Toggle(infoPtr, item, TRUE);
4214 break;
4215
4216 case TVHT_ONITEMSTATEICON:
4217 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4218 TREEVIEW_ToggleItemState(infoPtr, item);
4219 else
4220 TREEVIEW_Toggle(infoPtr, item, TRUE);
4221 break;
4222 }
4223 }
4224 return TRUE;
4225 }
4226
4227
4228 static LRESULT
TREEVIEW_LButtonDown(TREEVIEW_INFO * infoPtr,LPARAM lParam)4229 TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4230 {
4231 BOOL do_track, do_select, bDoLabelEdit;
4232 HWND hwnd = infoPtr->hwnd;
4233 TVHITTESTINFO ht;
4234
4235 /* If Edit control is active - kill it and return.
4236 * The best way to do it is to set focus to itself.
4237 * Edit control subclassed procedure will automatically call
4238 * EndEditLabelNow.
4239 */
4240 if (infoPtr->hwndEdit)
4241 {
4242 SetFocus(hwnd);
4243 return 0;
4244 }
4245
4246 ht.pt.x = (short)LOWORD(lParam);
4247 ht.pt.y = (short)HIWORD(lParam);
4248
4249 TREEVIEW_HitTest(infoPtr, &ht);
4250 TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
4251
4252 /* update focusedItem and redraw both items */
4253 if (ht.hItem)
4254 {
4255 BOOL do_focus;
4256
4257 if (TREEVIEW_IsFullRowSelect(infoPtr))
4258 do_focus = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT);
4259 else
4260 do_focus = ht.flags & TVHT_ONITEM;
4261
4262 if (do_focus)
4263 {
4264 infoPtr->focusedItem = ht.hItem;
4265 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4266 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4267 }
4268 }
4269
4270 if (!(infoPtr->dwStyle & TVS_DISABLEDRAGDROP))
4271 {
4272 if (TREEVIEW_IsFullRowSelect(infoPtr))
4273 do_track = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEM | TVHT_ONITEMRIGHT);
4274 else
4275 do_track = ht.flags & TVHT_ONITEM;
4276 }
4277 else
4278 do_track = FALSE;
4279
4280 /*
4281 * If the style allows editing and the node is already selected
4282 * and the click occurred on the item label...
4283 */
4284 bDoLabelEdit = (infoPtr->dwStyle & TVS_EDITLABELS) &&
4285 (ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem);
4286
4287 /* Send NM_CLICK right away */
4288 if (!do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4289 goto setfocus;
4290
4291 if (ht.flags & TVHT_ONITEMBUTTON)
4292 {
4293 TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
4294 goto setfocus;
4295 }
4296 else if (do_track)
4297 { /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
4298 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4299 {
4300 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGW, ht.hItem, ht.pt);
4301 infoPtr->dropItem = ht.hItem;
4302
4303 /* clean up focusedItem as we dragged and won't select this item */
4304 if(infoPtr->focusedItem)
4305 {
4306 /* refresh the item that was focused */
4307 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4308 infoPtr->focusedItem = NULL;
4309
4310 /* refresh the selected item to return the filled background */
4311 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4312 }
4313
4314 return 0;
4315 }
4316 }
4317
4318 if (do_track && TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
4319 goto setfocus;
4320
4321 if (TREEVIEW_IsFullRowSelect(infoPtr))
4322 do_select = ht.flags & (TVHT_ONITEMINDENT | TVHT_ONITEMICON | TVHT_ONITEMLABEL | TVHT_ONITEMRIGHT);
4323 else
4324 do_select = ht.flags & (TVHT_ONITEMICON | TVHT_ONITEMLABEL);
4325
4326 if (bDoLabelEdit)
4327 {
4328 if (infoPtr->Timer & TV_EDIT_TIMER_SET)
4329 KillTimer(hwnd, TV_EDIT_TIMER);
4330
4331 SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
4332 infoPtr->Timer |= TV_EDIT_TIMER_SET;
4333 }
4334 else if (do_select)
4335 {
4336 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4337
4338 /* Select the current item */
4339 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
4340 TREEVIEW_SingleExpand(infoPtr, selection, ht.hItem);
4341 }
4342 else if (ht.flags & TVHT_ONITEMSTATEICON)
4343 {
4344 /* TVS_CHECKBOXES requires us to toggle the current state */
4345 if (infoPtr->dwStyle & TVS_CHECKBOXES)
4346 TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
4347 }
4348
4349 setfocus:
4350 SetFocus(hwnd);
4351 return 0;
4352 }
4353
4354
4355 static LRESULT
TREEVIEW_RButtonDown(TREEVIEW_INFO * infoPtr,LPARAM lParam)4356 TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4357 {
4358 TVHITTESTINFO ht;
4359
4360 if (infoPtr->hwndEdit)
4361 {
4362 SetFocus(infoPtr->hwnd);
4363 return 0;
4364 }
4365
4366 ht.pt.x = (short)LOWORD(lParam);
4367 ht.pt.y = (short)HIWORD(lParam);
4368
4369 if (TREEVIEW_HitTest(infoPtr, &ht))
4370 {
4371 infoPtr->focusedItem = ht.hItem;
4372 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4373 TREEVIEW_InvalidateItem(infoPtr, infoPtr->selectedItem);
4374 }
4375
4376 if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
4377 {
4378 if (ht.hItem)
4379 {
4380 TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGW, ht.hItem, ht.pt);
4381 infoPtr->dropItem = ht.hItem;
4382 }
4383 }
4384 else
4385 {
4386 SetFocus(infoPtr->hwnd);
4387 if(!TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK))
4388 {
4389 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */
4390 SendMessageW(infoPtr->hwndNotify, WM_CONTEXTMENU,
4391 (WPARAM)infoPtr->hwnd, (LPARAM)GetMessagePos());
4392 }
4393 }
4394
4395 if (ht.hItem)
4396 {
4397 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4398 infoPtr->focusedItem = infoPtr->selectedItem;
4399 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4400 }
4401
4402 return 0;
4403 }
4404
4405 static LRESULT
TREEVIEW_CreateDragImage(TREEVIEW_INFO * infoPtr,LPARAM lParam)4406 TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, LPARAM lParam)
4407 {
4408 TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
4409 INT cx, cy;
4410 HDC hdc, htopdc;
4411 HWND hwtop;
4412 HBITMAP hbmp, hOldbmp;
4413 SIZE size;
4414 RECT rc;
4415 HFONT hOldFont;
4416
4417 TRACE("\n");
4418
4419 if (!(infoPtr->himlNormal))
4420 return 0;
4421
4422 if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
4423 return 0;
4424
4425 TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
4426
4427 hwtop = GetDesktopWindow();
4428 htopdc = GetDC(hwtop);
4429 hdc = CreateCompatibleDC(htopdc);
4430
4431 hOldFont = SelectObject(hdc, infoPtr->hFont);
4432
4433 if (dragItem->pszText)
4434 GetTextExtentPoint32W(hdc, dragItem->pszText, lstrlenW(dragItem->pszText),
4435 &size);
4436 else
4437 GetTextExtentPoint32A(hdc, "", 0, &size);
4438
4439 TRACE("%d %d %s\n", size.cx, size.cy, debugstr_w(dragItem->pszText));
4440 hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
4441 hOldbmp = SelectObject(hdc, hbmp);
4442
4443 ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
4444 size.cx += cx;
4445 if (cy > size.cy)
4446 size.cy = cy;
4447
4448 infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
4449 ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
4450 ILD_NORMAL);
4451
4452 /*
4453 ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
4454 ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
4455 */
4456
4457 /* draw item text */
4458
4459 SetRect(&rc, cx, 0, size.cx, size.cy);
4460
4461 if (dragItem->pszText)
4462 DrawTextW(hdc, dragItem->pszText, lstrlenW(dragItem->pszText), &rc,
4463 DT_LEFT);
4464
4465 SelectObject(hdc, hOldFont);
4466 SelectObject(hdc, hOldbmp);
4467
4468 ImageList_Add(infoPtr->dragList, hbmp, 0);
4469
4470 DeleteDC(hdc);
4471 DeleteObject(hbmp);
4472 ReleaseDC(hwtop, htopdc);
4473
4474 return (LRESULT)infoPtr->dragList;
4475 }
4476
4477 /* Selection ************************************************************/
4478
4479 static LRESULT
TREEVIEW_DoSelectItem(TREEVIEW_INFO * infoPtr,INT action,HTREEITEM newSelect,INT cause)4480 TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
4481 INT cause)
4482 {
4483 TREEVIEW_ITEM *prevSelect;
4484
4485 assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
4486
4487 TRACE("Entering item %p (%s), flag 0x%x, cause 0x%x, state 0x%x\n",
4488 newSelect, TREEVIEW_ItemName(newSelect), action, cause,
4489 newSelect ? newSelect->state : 0);
4490
4491 /* reset and redraw focusedItem if focusedItem was set so we don't */
4492 /* have to worry about the previously focused item when we set a new one */
4493 TREEVIEW_InvalidateItem(infoPtr, infoPtr->focusedItem);
4494 infoPtr->focusedItem = NULL;
4495
4496 switch (action)
4497 {
4498 case TVGN_CARET|TVSI_NOSINGLEEXPAND:
4499 FIXME("TVSI_NOSINGLEEXPAND specified.\n");
4500 /* Fall through */
4501 case TVGN_CARET:
4502 prevSelect = infoPtr->selectedItem;
4503
4504 if (prevSelect == newSelect) {
4505 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4506 break;
4507 }
4508
4509 if (TREEVIEW_SendTreeviewNotify(infoPtr,
4510 TVN_SELCHANGINGW,
4511 cause,
4512 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4513 prevSelect,
4514 newSelect))
4515 return FALSE;
4516
4517 if (prevSelect)
4518 prevSelect->state &= ~TVIS_SELECTED;
4519 if (newSelect)
4520 newSelect->state |= TVIS_SELECTED;
4521
4522 infoPtr->selectedItem = newSelect;
4523
4524 TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
4525
4526 TREEVIEW_InvalidateItem(infoPtr, prevSelect);
4527 TREEVIEW_InvalidateItem(infoPtr, newSelect);
4528
4529 TREEVIEW_SendTreeviewNotify(infoPtr,
4530 TVN_SELCHANGEDW,
4531 cause,
4532 TVIF_TEXT | TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
4533 prevSelect,
4534 newSelect);
4535 break;
4536
4537 case TVGN_DROPHILITE:
4538 prevSelect = infoPtr->dropItem;
4539
4540 if (prevSelect)
4541 prevSelect->state &= ~TVIS_DROPHILITED;
4542
4543 infoPtr->dropItem = newSelect;
4544
4545 if (newSelect)
4546 newSelect->state |= TVIS_DROPHILITED;
4547
4548 TREEVIEW_Invalidate(infoPtr, prevSelect);
4549 TREEVIEW_Invalidate(infoPtr, newSelect);
4550 break;
4551
4552 case TVGN_FIRSTVISIBLE:
4553 if (newSelect != NULL)
4554 {
4555 TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
4556 TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
4557 TREEVIEW_Invalidate(infoPtr, NULL);
4558 }
4559 break;
4560 }
4561
4562 TRACE("Leaving state 0x%x\n", newSelect ? newSelect->state : 0);
4563 return TRUE;
4564 }
4565
4566 /* FIXME: handle NM_KILLFOCUS etc */
4567 static LRESULT
TREEVIEW_SelectItem(TREEVIEW_INFO * infoPtr,INT wParam,HTREEITEM item)4568 TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
4569 {
4570 TREEVIEW_ITEM *selection = infoPtr->selectedItem;
4571
4572 if (item && !TREEVIEW_ValidItem(infoPtr, item))
4573 return FALSE;
4574
4575 if (item == infoPtr->selectedItem)
4576 return TRUE;
4577
4578 TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
4579
4580 if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
4581 return FALSE;
4582
4583 TREEVIEW_SingleExpand(infoPtr, selection, item);
4584
4585 return TRUE;
4586 }
4587
4588 /*************************************************************************
4589 * TREEVIEW_ProcessLetterKeys
4590 *
4591 * Processes keyboard messages generated by pressing the letter keys
4592 * on the keyboard.
4593 * What this does is perform a case insensitive search from the
4594 * current position with the following quirks:
4595 * - If two chars or more are pressed in quick succession we search
4596 * for the corresponding string (e.g. 'abc').
4597 * - If there is a delay we wipe away the current search string and
4598 * restart with just that char.
4599 * - If the user keeps pressing the same character, whether slowly or
4600 * fast, so that the search string is entirely composed of this
4601 * character ('aaaaa' for instance), then we search for first item
4602 * that starting with that character.
4603 * - If the user types the above character in quick succession, then
4604 * we must also search for the corresponding string ('aaaaa'), and
4605 * go to that string if there is a match.
4606 *
4607 * RETURNS
4608 *
4609 * Zero.
4610 *
4611 * BUGS
4612 *
4613 * - The current implementation has a list of characters it will
4614 * accept and it ignores everything else. In particular it will
4615 * ignore accentuated characters which seems to match what
4616 * Windows does. But I'm not sure it makes sense to follow
4617 * Windows there.
4618 * - We don't sound a beep when the search fails.
4619 * - The search should start from the focused item, not from the selected
4620 * item. One reason for this is to allow for multiple selections in trees.
4621 * But currently infoPtr->focusedItem does not seem very usable.
4622 *
4623 * SEE ALSO
4624 *
4625 * TREEVIEW_ProcessLetterKeys
4626 */
TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO * infoPtr,WPARAM charCode,LPARAM keyData)4627 static INT TREEVIEW_ProcessLetterKeys(TREEVIEW_INFO *infoPtr, WPARAM charCode, LPARAM keyData)
4628 {
4629 HTREEITEM nItem;
4630 HTREEITEM endidx,idx;
4631 TVITEMEXW item;
4632 WCHAR buffer[MAX_PATH];
4633 DWORD timestamp,elapsed;
4634
4635 /* simple parameter checking */
4636 if (!charCode || !keyData) return 0;
4637
4638 /* only allow the valid WM_CHARs through */
4639 if (!isalnum(charCode) &&
4640 charCode != '.' && charCode != '`' && charCode != '!' &&
4641 charCode != '@' && charCode != '#' && charCode != '$' &&
4642 charCode != '%' && charCode != '^' && charCode != '&' &&
4643 charCode != '*' && charCode != '(' && charCode != ')' &&
4644 charCode != '-' && charCode != '_' && charCode != '+' &&
4645 charCode != '=' && charCode != '\\'&& charCode != ']' &&
4646 charCode != '}' && charCode != '[' && charCode != '{' &&
4647 charCode != '/' && charCode != '?' && charCode != '>' &&
4648 charCode != '<' && charCode != ',' && charCode != '~')
4649 return 0;
4650
4651 /* compute how much time elapsed since last keypress */
4652 timestamp = GetTickCount();
4653 if (timestamp > infoPtr->lastKeyPressTimestamp) {
4654 elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
4655 } else {
4656 elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
4657 }
4658
4659 /* update the search parameters */
4660 infoPtr->lastKeyPressTimestamp=timestamp;
4661 if (elapsed < KEY_DELAY) {
4662 if (infoPtr->nSearchParamLength < ARRAY_SIZE(infoPtr->szSearchParam)) {
4663 infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
4664 }
4665 if (infoPtr->charCode != charCode) {
4666 infoPtr->charCode=charCode=0;
4667 }
4668 } else {
4669 infoPtr->charCode=charCode;
4670 infoPtr->szSearchParam[0]=charCode;
4671 infoPtr->nSearchParamLength=1;
4672 /* Redundant with the 1 char string */
4673 charCode=0;
4674 }
4675
4676 /* and search from the current position */
4677 nItem=NULL;
4678 if (infoPtr->selectedItem != NULL) {
4679 endidx=infoPtr->selectedItem;
4680 /* if looking for single character match,
4681 * then we must always move forward
4682 */
4683 if (infoPtr->nSearchParamLength == 1)
4684 idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
4685 else
4686 idx=endidx;
4687 } else {
4688 endidx=NULL;
4689 idx=infoPtr->root->firstChild;
4690 }
4691 do {
4692 /* At the end point, sort out wrapping */
4693 if (idx == NULL) {
4694
4695 /* If endidx is null, stop at the last item (ie top to bottom) */
4696 if (endidx == NULL)
4697 break;
4698
4699 /* Otherwise, start again at the very beginning */
4700 idx=infoPtr->root->firstChild;
4701
4702 /* But if we are stopping on the first child, end now! */
4703 if (idx == endidx) break;
4704 }
4705
4706 /* get item */
4707 ZeroMemory(&item, sizeof(item));
4708 item.mask = TVIF_TEXT;
4709 item.hItem = idx;
4710 item.pszText = buffer;
4711 item.cchTextMax = ARRAY_SIZE(buffer);
4712 TREEVIEW_GetItemT( infoPtr, &item, TRUE );
4713
4714 /* check for a match */
4715 if (wcsnicmp(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
4716 nItem=idx;
4717 break;
4718 } else if ( (charCode != 0) && (nItem == NULL) &&
4719 (nItem != infoPtr->selectedItem) &&
4720 (wcsnicmp(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
4721 /* This would work but we must keep looking for a longer match */
4722 nItem=idx;
4723 }
4724 idx=TREEVIEW_GetNextListItem(infoPtr,idx);
4725 } while (idx != endidx);
4726
4727 if (nItem != NULL) {
4728 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
4729 TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
4730 }
4731 }
4732
4733 return 0;
4734 }
4735
4736 /* Scrolling ************************************************************/
4737
4738 static LRESULT
TREEVIEW_EnsureVisible(TREEVIEW_INFO * infoPtr,HTREEITEM item,BOOL bHScroll)4739 TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
4740 {
4741 int viscount;
4742 BOOL hasFirstVisible = infoPtr->firstVisible != NULL;
4743 HTREEITEM newFirstVisible = NULL;
4744 int visible_pos = -1;
4745
4746 if (!TREEVIEW_ValidItem(infoPtr, item))
4747 return FALSE;
4748
4749 if (!ISVISIBLE(item))
4750 {
4751 /* Expand parents as necessary. */
4752 HTREEITEM parent;
4753
4754 /* see if we are trying to ensure that root is visible */
4755 if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
4756 parent = item->parent;
4757 else
4758 parent = item; /* this item is the topmost item */
4759
4760 while (parent != infoPtr->root)
4761 {
4762 if (!(parent->state & TVIS_EXPANDED))
4763 TREEVIEW_Expand(infoPtr, parent, FALSE, TRUE);
4764
4765 parent = parent->parent;
4766 }
4767 }
4768
4769 viscount = TREEVIEW_GetVisibleCount(infoPtr);
4770
4771 TRACE("%p (%s) %d - %d viscount(%d)\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
4772 hasFirstVisible ? infoPtr->firstVisible->visibleOrder : -1, viscount);
4773
4774 if (hasFirstVisible)
4775 visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
4776
4777 if (visible_pos < 0)
4778 {
4779 /* item is before the start of the list: put it at the top. */
4780 newFirstVisible = item;
4781 }
4782 else if (visible_pos >= viscount
4783 /* Sometimes, before we are displayed, GVC is 0, causing us to
4784 * spuriously scroll up. */
4785 && visible_pos > 0 && !(infoPtr->dwStyle & TVS_NOSCROLL) )
4786 {
4787 /* item is past the end of the list. */
4788 int scroll = visible_pos - viscount;
4789
4790 newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
4791 scroll + 1);
4792 }
4793
4794 if (bHScroll)
4795 {
4796 /* Scroll window so item's text is visible as much as possible */
4797 /* Calculation of amount of extra space is taken from EditLabel code */
4798 INT pos, x;
4799 TEXTMETRICW textMetric;
4800 HDC hdc = GetWindowDC(infoPtr->hwnd);
4801
4802 x = item->textWidth;
4803
4804 GetTextMetricsW(hdc, &textMetric);
4805 ReleaseDC(infoPtr->hwnd, hdc);
4806
4807 x += (textMetric.tmMaxCharWidth * 2);
4808 x = max(x, textMetric.tmMaxCharWidth * 3);
4809
4810 if (item->textOffset < 0)
4811 pos = item->textOffset;
4812 else if (item->textOffset + x > infoPtr->clientWidth)
4813 {
4814 if (x > infoPtr->clientWidth)
4815 pos = item->textOffset;
4816 else
4817 pos = item->textOffset + x - infoPtr->clientWidth;
4818 }
4819 else
4820 pos = 0;
4821
4822 TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
4823 }
4824
4825 if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
4826 {
4827 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
4828
4829 return TRUE;
4830 }
4831
4832 return FALSE;
4833 }
4834
4835 static VOID
TREEVIEW_SetFirstVisible(TREEVIEW_INFO * infoPtr,TREEVIEW_ITEM * newFirstVisible,BOOL bUpdateScrollPos)4836 TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
4837 TREEVIEW_ITEM *newFirstVisible,
4838 BOOL bUpdateScrollPos)
4839 {
4840 int gap_size;
4841
4842 TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
4843
4844 if (newFirstVisible != NULL)
4845 {
4846 /* Prevent an empty gap from appearing at the bottom... */
4847 gap_size = TREEVIEW_GetVisibleCount(infoPtr)
4848 - infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
4849
4850 if (gap_size > 0)
4851 {
4852 newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
4853 -gap_size);
4854
4855 /* ... unless we just don't have enough items. */
4856 if (newFirstVisible == NULL)
4857 newFirstVisible = infoPtr->root->firstChild;
4858 }
4859 }
4860
4861 if (infoPtr->firstVisible != newFirstVisible)
4862 {
4863 if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
4864 {
4865 infoPtr->firstVisible = newFirstVisible;
4866 TREEVIEW_Invalidate(infoPtr, NULL);
4867 }
4868 else
4869 {
4870 TREEVIEW_ITEM *item;
4871 int scroll = infoPtr->uItemHeight *
4872 (infoPtr->firstVisible->visibleOrder
4873 - newFirstVisible->visibleOrder);
4874
4875 infoPtr->firstVisible = newFirstVisible;
4876
4877 for (item = infoPtr->root->firstChild; item != NULL;
4878 item = TREEVIEW_GetNextListItem(infoPtr, item))
4879 {
4880 item->rect.top += scroll;
4881 item->rect.bottom += scroll;
4882 }
4883
4884 if (bUpdateScrollPos)
4885 SetScrollPos(infoPtr->hwnd, SB_VERT,
4886 newFirstVisible->visibleOrder, TRUE);
4887
4888 ScrollWindowEx(infoPtr->hwnd, 0, scroll, NULL, NULL, NULL, NULL, SW_ERASE | SW_INVALIDATE);
4889 }
4890 }
4891 }
4892
4893 /************************************************************************
4894 * VScroll is always in units of visible items. i.e. we always have a
4895 * visible item aligned to the top of the control. (Unless we have no
4896 * items at all.)
4897 */
4898 static LRESULT
TREEVIEW_VScroll(TREEVIEW_INFO * infoPtr,WPARAM wParam)4899 TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4900 {
4901 TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
4902 TREEVIEW_ITEM *newFirstVisible = NULL;
4903
4904 int nScrollCode = LOWORD(wParam);
4905
4906 TRACE("wp %lx\n", wParam);
4907
4908 if (!(infoPtr->uInternalStatus & TV_VSCROLL))
4909 return 0;
4910
4911 if (!oldFirstVisible)
4912 {
4913 assert(infoPtr->root->firstChild == NULL);
4914 return 0;
4915 }
4916
4917 switch (nScrollCode)
4918 {
4919 case SB_TOP:
4920 newFirstVisible = infoPtr->root->firstChild;
4921 break;
4922
4923 case SB_BOTTOM:
4924 newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
4925 break;
4926
4927 case SB_LINEUP:
4928 newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
4929 break;
4930
4931 case SB_LINEDOWN:
4932 newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
4933 break;
4934
4935 case SB_PAGEUP:
4936 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4937 -max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4938 break;
4939
4940 case SB_PAGEDOWN:
4941 newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
4942 max(1, TREEVIEW_GetVisibleCount(infoPtr)));
4943 break;
4944
4945 case SB_THUMBTRACK:
4946 case SB_THUMBPOSITION:
4947 newFirstVisible = TREEVIEW_GetListItem(infoPtr,
4948 infoPtr->root->firstChild,
4949 (LONG)(SHORT)HIWORD(wParam));
4950 break;
4951
4952 case SB_ENDSCROLL:
4953 return 0;
4954 }
4955
4956 if (newFirstVisible != NULL)
4957 {
4958 if (newFirstVisible != oldFirstVisible)
4959 TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
4960 nScrollCode != SB_THUMBTRACK);
4961 else if (nScrollCode == SB_THUMBPOSITION)
4962 SetScrollPos(infoPtr->hwnd, SB_VERT,
4963 newFirstVisible->visibleOrder, TRUE);
4964 }
4965
4966 return 0;
4967 }
4968
4969 static LRESULT
TREEVIEW_HScroll(TREEVIEW_INFO * infoPtr,WPARAM wParam)4970 TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
4971 {
4972 int maxWidth;
4973 int scrollX = infoPtr->scrollX;
4974 int nScrollCode = LOWORD(wParam);
4975
4976 TRACE("wp %lx\n", wParam);
4977
4978 if (!(infoPtr->uInternalStatus & TV_HSCROLL))
4979 return FALSE;
4980
4981 maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
4982 /* shall never occur */
4983 if (maxWidth <= 0)
4984 {
4985 scrollX = 0;
4986 goto scroll;
4987 }
4988
4989 switch (nScrollCode)
4990 {
4991 case SB_LINELEFT:
4992 scrollX -= infoPtr->uItemHeight;
4993 break;
4994 case SB_LINERIGHT:
4995 scrollX += infoPtr->uItemHeight;
4996 break;
4997 case SB_PAGELEFT:
4998 scrollX -= infoPtr->clientWidth;
4999 break;
5000 case SB_PAGERIGHT:
5001 scrollX += infoPtr->clientWidth;
5002 break;
5003
5004 case SB_THUMBTRACK:
5005 case SB_THUMBPOSITION:
5006 scrollX = (int)(SHORT)HIWORD(wParam);
5007 break;
5008
5009 case SB_ENDSCROLL:
5010 return 0;
5011 }
5012
5013 if (scrollX > maxWidth)
5014 scrollX = maxWidth;
5015 else if (scrollX < 0)
5016 scrollX = 0;
5017
5018 scroll:
5019 if (scrollX != infoPtr->scrollX)
5020 {
5021 TREEVIEW_ITEM *item;
5022 LONG scroll_pixels = infoPtr->scrollX - scrollX;
5023
5024 for (item = infoPtr->root->firstChild; item != NULL;
5025 item = TREEVIEW_GetNextListItem(infoPtr, item))
5026 {
5027 item->linesOffset += scroll_pixels;
5028 item->stateOffset += scroll_pixels;
5029 item->imageOffset += scroll_pixels;
5030 item->textOffset += scroll_pixels;
5031 }
5032
5033 ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
5034 infoPtr->scrollX = scrollX;
5035 UpdateWindow(infoPtr->hwnd);
5036 }
5037
5038 if (nScrollCode != SB_THUMBTRACK)
5039 SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
5040
5041 return 0;
5042 }
5043
5044 static LRESULT
TREEVIEW_MouseWheel(TREEVIEW_INFO * infoPtr,WPARAM wParam,LPARAM lParam)5045 TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5046 {
5047 short wheelDelta;
5048 INT pulScrollLines = 3;
5049
5050 if (wParam & (MK_SHIFT | MK_CONTROL))
5051 return DefWindowProcW(infoPtr->hwnd, WM_MOUSEWHEEL, wParam, lParam);
5052
5053 if (infoPtr->firstVisible == NULL)
5054 return TRUE;
5055
5056 SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
5057
5058 wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
5059 /* if scrolling changes direction, ignore left overs */
5060 if ((wheelDelta < 0 && infoPtr->wheelRemainder < 0) ||
5061 (wheelDelta > 0 && infoPtr->wheelRemainder > 0))
5062 infoPtr->wheelRemainder += wheelDelta;
5063 else
5064 infoPtr->wheelRemainder = wheelDelta;
5065
5066 if (infoPtr->wheelRemainder && pulScrollLines)
5067 {
5068 int newDy;
5069 int maxDy;
5070 int lineScroll;
5071
5072 lineScroll = pulScrollLines * infoPtr->wheelRemainder / WHEEL_DELTA;
5073 infoPtr->wheelRemainder -= WHEEL_DELTA * lineScroll / pulScrollLines;
5074
5075 newDy = infoPtr->firstVisible->visibleOrder - lineScroll;
5076 maxDy = infoPtr->maxVisibleOrder;
5077
5078 if (newDy > maxDy)
5079 newDy = maxDy;
5080
5081 if (newDy < 0)
5082 newDy = 0;
5083
5084 TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
5085 }
5086 return TRUE;
5087 }
5088
5089 /* Create/Destroy *******************************************************/
5090
5091 static LRESULT
TREEVIEW_Create(HWND hwnd,const CREATESTRUCTW * lpcs)5092 TREEVIEW_Create(HWND hwnd, const CREATESTRUCTW *lpcs)
5093 {
5094 RECT rcClient;
5095 TREEVIEW_INFO *infoPtr;
5096 LOGFONTW lf;
5097
5098 TRACE("wnd %p, style 0x%x\n", hwnd, GetWindowLongW(hwnd, GWL_STYLE));
5099
5100 infoPtr = heap_alloc_zero(sizeof(TREEVIEW_INFO));
5101
5102 if (infoPtr == NULL)
5103 {
5104 ERR("could not allocate info memory!\n");
5105 return 0;
5106 }
5107
5108 SetWindowLongPtrW(hwnd, 0, (DWORD_PTR)infoPtr);
5109
5110 infoPtr->hwnd = hwnd;
5111 infoPtr->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
5112 infoPtr->Timer = 0;
5113 infoPtr->uNumItems = 0;
5114 infoPtr->cdmode = 0;
5115 infoPtr->uScrollTime = 300; /* milliseconds */
5116 infoPtr->bRedraw = TRUE;
5117
5118 GetClientRect(hwnd, &rcClient);
5119
5120 /* No scroll bars yet. */
5121 infoPtr->clientWidth = rcClient.right;
5122 infoPtr->clientHeight = rcClient.bottom;
5123 infoPtr->uInternalStatus = 0;
5124
5125 infoPtr->treeWidth = 0;
5126 infoPtr->treeHeight = 0;
5127
5128 infoPtr->uIndent = MINIMUM_INDENT;
5129 infoPtr->selectedItem = NULL;
5130 infoPtr->focusedItem = NULL;
5131 infoPtr->hotItem = NULL;
5132 infoPtr->editItem = NULL;
5133 infoPtr->firstVisible = NULL;
5134 infoPtr->maxVisibleOrder = 0;
5135 infoPtr->dropItem = NULL;
5136 infoPtr->insertMarkItem = NULL;
5137 infoPtr->insertBeforeorAfter = 0;
5138 /* dragList */
5139
5140 infoPtr->scrollX = 0;
5141 infoPtr->wheelRemainder = 0;
5142
5143 infoPtr->clrBk = CLR_NONE; /* use system color */
5144 infoPtr->clrText = CLR_NONE; /* use system color */
5145 infoPtr->clrLine = CLR_DEFAULT;
5146 infoPtr->clrInsertMark = CLR_DEFAULT;
5147
5148 /* hwndToolTip */
5149
5150 infoPtr->hwndEdit = NULL;
5151 infoPtr->wpEditOrig = NULL;
5152 infoPtr->bIgnoreEditKillFocus = FALSE;
5153 infoPtr->bLabelChanged = FALSE;
5154
5155 infoPtr->himlNormal = NULL;
5156 infoPtr->himlState = NULL;
5157 infoPtr->normalImageWidth = 0;
5158 infoPtr->normalImageHeight = 0;
5159 infoPtr->stateImageWidth = 0;
5160 infoPtr->stateImageHeight = 0;
5161
5162 infoPtr->items = DPA_Create(16);
5163
5164 SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
5165 infoPtr->hFont = infoPtr->hDefaultFont = CreateFontIndirectW(&lf);
5166 infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
5167 infoPtr->hUnderlineFont = TREEVIEW_CreateUnderlineFont(infoPtr->hFont);
5168 infoPtr->hBoldUnderlineFont = TREEVIEW_CreateBoldUnderlineFont(infoPtr->hFont);
5169 infoPtr->hcurHand = LoadCursorW(NULL, (LPWSTR)IDC_HAND);
5170
5171 infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
5172
5173 infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
5174 infoPtr->root->state = TVIS_EXPANDED;
5175 infoPtr->root->iLevel = -1;
5176 infoPtr->root->visibleOrder = -1;
5177
5178 infoPtr->hwndNotify = lpcs->hwndParent;
5179 infoPtr->hwndToolTip = 0;
5180
5181 /* Determine what type of notify should be issued (sets infoPtr->bNtfUnicode) */
5182 TREEVIEW_NotifyFormat(infoPtr, infoPtr->hwndNotify, NF_REQUERY);
5183
5184 if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
5185 infoPtr->hwndToolTip = CreateWindowExW(0, TOOLTIPS_CLASSW, NULL, WS_POPUP,
5186 CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
5187 hwnd, 0, 0, 0);
5188
5189 /* Make sure actual scrollbar state is consistent with uInternalStatus */
5190 ShowScrollBar(hwnd, SB_VERT, FALSE);
5191 ShowScrollBar(hwnd, SB_HORZ, FALSE);
5192
5193 OpenThemeData (hwnd, themeClass);
5194
5195 return 0;
5196 }
5197
5198
5199 static LRESULT
TREEVIEW_Destroy(TREEVIEW_INFO * infoPtr)5200 TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
5201 {
5202 TRACE("\n");
5203
5204 /* free item data */
5205 TREEVIEW_RemoveTree(infoPtr);
5206 /* root isn't freed with other items */
5207 TREEVIEW_FreeItem(infoPtr, infoPtr->root);
5208 DPA_Destroy(infoPtr->items);
5209
5210 /* Restore original wndproc */
5211 if (infoPtr->hwndEdit)
5212 SetWindowLongPtrW(infoPtr->hwndEdit, GWLP_WNDPROC,
5213 (DWORD_PTR)infoPtr->wpEditOrig);
5214
5215 CloseThemeData (GetWindowTheme (infoPtr->hwnd));
5216
5217 /* Deassociate treeview from the window before doing anything drastic. */
5218 SetWindowLongPtrW(infoPtr->hwnd, 0, 0);
5219
5220 DeleteObject(infoPtr->hDefaultFont);
5221 DeleteObject(infoPtr->hBoldFont);
5222 DeleteObject(infoPtr->hUnderlineFont);
5223 DeleteObject(infoPtr->hBoldUnderlineFont);
5224 DestroyWindow(infoPtr->hwndToolTip);
5225 heap_free(infoPtr);
5226
5227 return 0;
5228 }
5229
5230 /* Miscellaneous Messages ***********************************************/
5231
5232 static LRESULT
TREEVIEW_ScrollKeyDown(TREEVIEW_INFO * infoPtr,WPARAM key)5233 TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
5234 {
5235 static const struct
5236 {
5237 unsigned char code;
5238 }
5239 scroll[] =
5240 {
5241 #define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
5242 SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
5243 SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
5244 SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
5245 SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
5246 SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
5247 SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
5248 SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
5249 SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
5250 #undef SCROLL_ENTRY
5251 };
5252
5253 if (key >= VK_PRIOR && key <= VK_DOWN)
5254 {
5255 unsigned char code = scroll[key - VK_PRIOR].code;
5256
5257 (((code & (1 << 7)) == (SB_HORZ << 7))
5258 ? TREEVIEW_HScroll
5259 : TREEVIEW_VScroll)(infoPtr, code & 0x7F);
5260 }
5261
5262 return 0;
5263 }
5264
5265 /************************************************************************
5266 * TREEVIEW_KeyDown
5267 *
5268 * VK_UP Move selection to the previous non-hidden item.
5269 * VK_DOWN Move selection to the next non-hidden item.
5270 * VK_HOME Move selection to the first item.
5271 * VK_END Move selection to the last item.
5272 * VK_LEFT If expanded then collapse, otherwise move to parent.
5273 * VK_RIGHT If collapsed then expand, otherwise move to first child.
5274 * VK_ADD Expand.
5275 * VK_SUBTRACT Collapse.
5276 * VK_MULTIPLY Expand all.
5277 * VK_PRIOR Move up GetVisibleCount items.
5278 * VK_NEXT Move down GetVisibleCount items.
5279 * VK_BACK Move to parent.
5280 * CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
5281 */
5282 static LRESULT
TREEVIEW_KeyDown(TREEVIEW_INFO * infoPtr,WPARAM wParam)5283 TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
5284 {
5285 /* If it is non-NULL and different, it will be selected and visible. */
5286 TREEVIEW_ITEM *newSelection = NULL;
5287 TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
5288 NMTVKEYDOWN nmkeydown;
5289
5290 TRACE("%lx\n", wParam);
5291
5292 nmkeydown.wVKey = wParam;
5293 nmkeydown.flags = 0;
5294 TREEVIEW_SendRealNotify(infoPtr, TVN_KEYDOWN, &nmkeydown.hdr);
5295
5296 if (prevItem == NULL)
5297 return FALSE;
5298
5299 if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
5300 return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
5301
5302 switch (wParam)
5303 {
5304 case VK_UP:
5305 newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
5306 if (!newSelection)
5307 newSelection = infoPtr->root->firstChild;
5308 break;
5309
5310 case VK_DOWN:
5311 newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
5312 break;
5313
5314 case VK_RETURN:
5315 TREEVIEW_SendSimpleNotify(infoPtr, NM_RETURN);
5316 break;
5317
5318 case VK_HOME:
5319 newSelection = infoPtr->root->firstChild;
5320 break;
5321
5322 case VK_END:
5323 newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
5324 break;
5325
5326 case VK_LEFT:
5327 if (prevItem->state & TVIS_EXPANDED)
5328 {
5329 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5330 }
5331 else if (prevItem->parent != infoPtr->root)
5332 {
5333 newSelection = prevItem->parent;
5334 }
5335 break;
5336
5337 case VK_RIGHT:
5338 if (TREEVIEW_HasChildren(infoPtr, prevItem))
5339 {
5340 if (!(prevItem->state & TVIS_EXPANDED))
5341 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5342 else
5343 {
5344 newSelection = prevItem->firstChild;
5345 }
5346 }
5347
5348 break;
5349
5350 case VK_MULTIPLY:
5351 TREEVIEW_ExpandAll(infoPtr, prevItem);
5352 break;
5353
5354 case VK_ADD:
5355 TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
5356 break;
5357
5358 case VK_SUBTRACT:
5359 TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
5360 break;
5361
5362 case VK_PRIOR:
5363 newSelection
5364 = TREEVIEW_GetListItem(infoPtr, prevItem,
5365 -TREEVIEW_GetVisibleCount(infoPtr));
5366 break;
5367
5368 case VK_NEXT:
5369 newSelection
5370 = TREEVIEW_GetListItem(infoPtr, prevItem,
5371 TREEVIEW_GetVisibleCount(infoPtr));
5372 break;
5373
5374 case VK_BACK:
5375 newSelection = prevItem->parent;
5376 if (newSelection == infoPtr->root)
5377 newSelection = NULL;
5378 break;
5379
5380 case VK_SPACE:
5381 if (infoPtr->dwStyle & TVS_CHECKBOXES)
5382 TREEVIEW_ToggleItemState(infoPtr, prevItem);
5383 break;
5384 }
5385
5386 if (newSelection && newSelection != prevItem)
5387 {
5388 if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
5389 TVC_BYKEYBOARD))
5390 {
5391 TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
5392 }
5393 }
5394
5395 return FALSE;
5396 }
5397
5398 static LRESULT
TREEVIEW_MouseLeave(TREEVIEW_INFO * infoPtr)5399 TREEVIEW_MouseLeave (TREEVIEW_INFO * infoPtr)
5400 {
5401 /* remove hot effect from item */
5402 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5403 infoPtr->hotItem = NULL;
5404
5405 return 0;
5406 }
5407
5408 static LRESULT
TREEVIEW_MouseMove(TREEVIEW_INFO * infoPtr,LPARAM lParam)5409 TREEVIEW_MouseMove (TREEVIEW_INFO * infoPtr, LPARAM lParam)
5410 {
5411 TRACKMOUSEEVENT trackinfo;
5412 TREEVIEW_ITEM * item;
5413 TVHITTESTINFO ht;
5414 BOOL item_hit;
5415
5416 if (!(infoPtr->dwStyle & TVS_TRACKSELECT)) return 0;
5417
5418 /* fill in the TRACKMOUSEEVENT struct */
5419 trackinfo.cbSize = sizeof(TRACKMOUSEEVENT);
5420 trackinfo.dwFlags = TME_QUERY;
5421 trackinfo.hwndTrack = infoPtr->hwnd;
5422
5423 /* call _TrackMouseEvent to see if we are currently tracking for this hwnd */
5424 _TrackMouseEvent(&trackinfo);
5425
5426 /* Make sure tracking is enabled so we receive a WM_MOUSELEAVE message */
5427 if(!(trackinfo.dwFlags & TME_LEAVE))
5428 {
5429 trackinfo.dwFlags = TME_LEAVE; /* notify upon leaving */
5430 trackinfo.hwndTrack = infoPtr->hwnd;
5431 /* do it as fast as possible, minimal systimer latency will be used */
5432 trackinfo.dwHoverTime = 1;
5433
5434 /* call TRACKMOUSEEVENT so we receive a WM_MOUSELEAVE message */
5435 /* and can properly deactivate the hot item */
5436 _TrackMouseEvent(&trackinfo);
5437 }
5438
5439 ht.pt.x = (short)LOWORD(lParam);
5440 ht.pt.y = (short)HIWORD(lParam);
5441
5442 item = TREEVIEW_HitTest(infoPtr, &ht);
5443 item_hit = TREEVIEW_IsItemHit(infoPtr, &ht);
5444 if ((item != infoPtr->hotItem) || !item_hit)
5445 {
5446 /* redraw old hot item */
5447 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5448 infoPtr->hotItem = NULL;
5449 if (item && item_hit)
5450 {
5451 infoPtr->hotItem = item;
5452 /* redraw new hot item */
5453 TREEVIEW_InvalidateItem(infoPtr, infoPtr->hotItem);
5454 }
5455 }
5456
5457 return 0;
5458 }
5459
5460 /* Draw themed border */
TREEVIEW_NCPaint(const TREEVIEW_INFO * infoPtr,HRGN region,LPARAM lParam)5461 static BOOL TREEVIEW_NCPaint (const TREEVIEW_INFO *infoPtr, HRGN region, LPARAM lParam)
5462 {
5463 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5464 HDC dc;
5465 RECT r;
5466 HRGN cliprgn;
5467 int cxEdge = GetSystemMetrics (SM_CXEDGE),
5468 cyEdge = GetSystemMetrics (SM_CYEDGE);
5469
5470 if (!theme)
5471 return DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)region, lParam);
5472
5473 GetWindowRect(infoPtr->hwnd, &r);
5474
5475 cliprgn = CreateRectRgn (r.left + cxEdge, r.top + cyEdge,
5476 r.right - cxEdge, r.bottom - cyEdge);
5477 if (region != (HRGN)1)
5478 CombineRgn (cliprgn, cliprgn, region, RGN_AND);
5479 OffsetRect(&r, -r.left, -r.top);
5480
5481 #ifdef __REACTOS__ /* r73789 */
5482 dc = GetWindowDC(infoPtr->hwnd);
5483 /* Exclude client part */
5484 ExcludeClipRect(dc, r.left + cxEdge, r.top + cyEdge,
5485 r.right - cxEdge, r.bottom -cyEdge);
5486 #else
5487 dc = GetDCEx(infoPtr->hwnd, region, DCX_WINDOW|DCX_INTERSECTRGN);
5488 OffsetRect(&r, -r.left, -r.top);
5489 #endif
5490
5491 if (IsThemeBackgroundPartiallyTransparent (theme, 0, 0))
5492 DrawThemeParentBackground(infoPtr->hwnd, dc, &r);
5493 DrawThemeBackground (theme, dc, 0, 0, &r, 0);
5494 ReleaseDC(infoPtr->hwnd, dc);
5495
5496 /* Call default proc to get the scrollbars etc. painted */
5497 DefWindowProcW (infoPtr->hwnd, WM_NCPAINT, (WPARAM)cliprgn, 0);
5498 DeleteObject(cliprgn);
5499
5500 return TRUE;
5501 }
5502
5503 static LRESULT
TREEVIEW_Notify(const TREEVIEW_INFO * infoPtr,WPARAM wParam,LPARAM lParam)5504 TREEVIEW_Notify(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5505 {
5506 LPNMHDR lpnmh = (LPNMHDR)lParam;
5507
5508 if (lpnmh->code == PGN_CALCSIZE) {
5509 LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
5510
5511 if (lppgc->dwFlag == PGF_CALCWIDTH) {
5512 lppgc->iWidth = infoPtr->treeWidth;
5513 TRACE("got PGN_CALCSIZE, returning horz size = %d, client=%d\n",
5514 infoPtr->treeWidth, infoPtr->clientWidth);
5515 }
5516 else {
5517 lppgc->iHeight = infoPtr->treeHeight;
5518 TRACE("got PGN_CALCSIZE, returning vert size = %d, client=%d\n",
5519 infoPtr->treeHeight, infoPtr->clientHeight);
5520 }
5521 return 0;
5522 }
5523 return DefWindowProcW(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
5524 }
5525
5526 static LRESULT
TREEVIEW_Size(TREEVIEW_INFO * infoPtr,WPARAM wParam,LPARAM lParam)5527 TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5528 {
5529 if (wParam == SIZE_RESTORED)
5530 {
5531 infoPtr->clientWidth = (short)LOWORD(lParam);
5532 infoPtr->clientHeight = (short)HIWORD(lParam);
5533
5534 TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
5535 TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
5536 TREEVIEW_UpdateScrollBars(infoPtr);
5537 }
5538 else
5539 {
5540 FIXME("WM_SIZE flag %lx %lx not handled\n", wParam, lParam);
5541 }
5542
5543 TREEVIEW_Invalidate(infoPtr, NULL);
5544 return 0;
5545 }
5546
5547 static LRESULT
TREEVIEW_StyleChanged(TREEVIEW_INFO * infoPtr,WPARAM wParam,LPARAM lParam)5548 TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5549 {
5550 TRACE("(%lx %lx)\n", wParam, lParam);
5551
5552 if (wParam == GWL_STYLE)
5553 {
5554 DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
5555
5556 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_CHECKBOXES)
5557 {
5558 if (dwNewStyle & TVS_CHECKBOXES)
5559 {
5560 TREEVIEW_InitCheckboxes(infoPtr);
5561 TRACE("checkboxes enabled\n");
5562
5563 /* set all items to state image index 1 */
5564 TREEVIEW_ResetImageStateIndex(infoPtr, infoPtr->root);
5565 }
5566 else
5567 {
5568 FIXME("tried to disable checkboxes\n");
5569 }
5570 }
5571
5572 if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
5573 {
5574 if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
5575 {
5576 infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
5577 TRACE("tooltips enabled\n");
5578 }
5579 else
5580 {
5581 DestroyWindow(infoPtr->hwndToolTip);
5582 infoPtr->hwndToolTip = 0;
5583 TRACE("tooltips disabled\n");
5584 }
5585 }
5586
5587 infoPtr->dwStyle = dwNewStyle;
5588 }
5589
5590 TREEVIEW_EndEditLabelNow(infoPtr, TRUE);
5591 TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
5592 TREEVIEW_UpdateScrollBars(infoPtr);
5593 TREEVIEW_Invalidate(infoPtr, NULL);
5594
5595 return 0;
5596 }
5597
5598 static LRESULT
TREEVIEW_SetCursor(const TREEVIEW_INFO * infoPtr,WPARAM wParam,LPARAM lParam)5599 TREEVIEW_SetCursor(const TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
5600 {
5601 TREEVIEW_ITEM * item;
5602 TVHITTESTINFO ht;
5603 NMMOUSE nmmouse;
5604
5605 GetCursorPos(&ht.pt);
5606 ScreenToClient(infoPtr->hwnd, &ht.pt);
5607
5608 item = TREEVIEW_HitTest(infoPtr, &ht);
5609
5610 memset(&nmmouse, 0, sizeof(nmmouse));
5611 if (item)
5612 {
5613 nmmouse.dwItemSpec = (DWORD_PTR)item;
5614 nmmouse.dwItemData = item->lParam;
5615 }
5616 nmmouse.pt.x = 0;
5617 nmmouse.pt.y = 0;
5618 nmmouse.dwHitInfo = lParam;
5619 if (TREEVIEW_SendRealNotify(infoPtr, NM_SETCURSOR, &nmmouse.hdr))
5620 return 0;
5621
5622 if (item && (infoPtr->dwStyle & TVS_TRACKSELECT) && TREEVIEW_IsItemHit(infoPtr, &ht))
5623 {
5624 SetCursor(infoPtr->hcurHand);
5625 return 0;
5626 }
5627 else
5628 return DefWindowProcW(infoPtr->hwnd, WM_SETCURSOR, wParam, lParam);
5629 }
5630
5631 static LRESULT
TREEVIEW_SetFocus(TREEVIEW_INFO * infoPtr)5632 TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
5633 {
5634 TRACE("\n");
5635
5636 if (!infoPtr->selectedItem)
5637 {
5638 TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
5639 TVC_UNKNOWN);
5640 }
5641
5642 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5643 TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
5644 return 0;
5645 }
5646
5647 static LRESULT
TREEVIEW_KillFocus(const TREEVIEW_INFO * infoPtr)5648 TREEVIEW_KillFocus(const TREEVIEW_INFO *infoPtr)
5649 {
5650 TRACE("\n");
5651
5652 TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
5653 UpdateWindow(infoPtr->hwnd);
5654 TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
5655 return 0;
5656 }
5657
5658 /* update theme after a WM_THEMECHANGED message */
TREEVIEW_ThemeChanged(const TREEVIEW_INFO * infoPtr)5659 static LRESULT TREEVIEW_ThemeChanged(const TREEVIEW_INFO *infoPtr)
5660 {
5661 HTHEME theme = GetWindowTheme (infoPtr->hwnd);
5662 CloseThemeData (theme);
5663 OpenThemeData (infoPtr->hwnd, themeClass);
5664 return 0;
5665 }
5666
5667
5668 static LRESULT WINAPI
TREEVIEW_WindowProc(HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam)5669 TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
5670 {
5671 TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
5672
5673 TRACE("hwnd %p msg %04x wp=%08lx lp=%08lx\n", hwnd, uMsg, wParam, lParam);
5674
5675 if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
5676 else
5677 {
5678 if (uMsg == WM_CREATE)
5679 TREEVIEW_Create(hwnd, (LPCREATESTRUCTW)lParam);
5680 else
5681 goto def;
5682 }
5683
5684 switch (uMsg)
5685 {
5686 case TVM_CREATEDRAGIMAGE:
5687 return TREEVIEW_CreateDragImage(infoPtr, lParam);
5688
5689 case TVM_DELETEITEM:
5690 return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
5691
5692 case TVM_EDITLABELA:
5693 case TVM_EDITLABELW:
5694 return (LRESULT)TREEVIEW_EditLabel(infoPtr, (HTREEITEM)lParam);
5695
5696 case TVM_ENDEDITLABELNOW:
5697 return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
5698
5699 case TVM_ENSUREVISIBLE:
5700 return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
5701
5702 case TVM_EXPAND:
5703 return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5704
5705 case TVM_GETBKCOLOR:
5706 return TREEVIEW_GetBkColor(infoPtr);
5707
5708 case TVM_GETCOUNT:
5709 return TREEVIEW_GetCount(infoPtr);
5710
5711 case TVM_GETEDITCONTROL:
5712 return TREEVIEW_GetEditControl(infoPtr);
5713
5714 case TVM_GETIMAGELIST:
5715 return TREEVIEW_GetImageList(infoPtr, wParam);
5716
5717 case TVM_GETINDENT:
5718 return TREEVIEW_GetIndent(infoPtr);
5719
5720 case TVM_GETINSERTMARKCOLOR:
5721 return TREEVIEW_GetInsertMarkColor(infoPtr);
5722
5723 case TVM_GETISEARCHSTRINGA:
5724 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
5725 return 0;
5726
5727 case TVM_GETISEARCHSTRINGW:
5728 FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
5729 return 0;
5730
5731 case TVM_GETITEMA:
5732 case TVM_GETITEMW:
5733 return TREEVIEW_GetItemT(infoPtr, (LPTVITEMEXW)lParam,
5734 uMsg == TVM_GETITEMW);
5735 case TVM_GETITEMHEIGHT:
5736 return TREEVIEW_GetItemHeight(infoPtr);
5737
5738 case TVM_GETITEMRECT:
5739 return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
5740
5741 case TVM_GETITEMSTATE:
5742 return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
5743
5744 case TVM_GETLINECOLOR:
5745 return TREEVIEW_GetLineColor(infoPtr);
5746
5747 case TVM_GETNEXTITEM:
5748 return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
5749
5750 case TVM_GETSCROLLTIME:
5751 return TREEVIEW_GetScrollTime(infoPtr);
5752
5753 case TVM_GETTEXTCOLOR:
5754 return TREEVIEW_GetTextColor(infoPtr);
5755
5756 case TVM_GETTOOLTIPS:
5757 return TREEVIEW_GetToolTips(infoPtr);
5758
5759 case TVM_GETUNICODEFORMAT:
5760 return TREEVIEW_GetUnicodeFormat(infoPtr);
5761
5762 case TVM_GETVISIBLECOUNT:
5763 return TREEVIEW_GetVisibleCount(infoPtr);
5764
5765 case TVM_HITTEST:
5766 return (LRESULT)TREEVIEW_HitTest(infoPtr, (TVHITTESTINFO*)lParam);
5767
5768 case TVM_INSERTITEMA:
5769 case TVM_INSERTITEMW:
5770 return TREEVIEW_InsertItemT(infoPtr, (LPTVINSERTSTRUCTW)lParam,
5771 uMsg == TVM_INSERTITEMW);
5772 case TVM_SELECTITEM:
5773 return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
5774
5775 case TVM_SETBKCOLOR:
5776 return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
5777
5778 case TVM_SETIMAGELIST:
5779 return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
5780
5781 case TVM_SETINDENT:
5782 return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
5783
5784 case TVM_SETINSERTMARK:
5785 return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
5786
5787 case TVM_SETINSERTMARKCOLOR:
5788 return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
5789
5790 case TVM_SETITEMA:
5791 case TVM_SETITEMW:
5792 return TREEVIEW_SetItemT(infoPtr, (LPTVITEMEXW)lParam,
5793 uMsg == TVM_SETITEMW);
5794 case TVM_SETLINECOLOR:
5795 return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
5796
5797 case TVM_SETITEMHEIGHT:
5798 return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
5799
5800 case TVM_SETSCROLLTIME:
5801 return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
5802
5803 case TVM_SETTEXTCOLOR:
5804 return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
5805
5806 case TVM_SETTOOLTIPS:
5807 return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
5808
5809 case TVM_SETUNICODEFORMAT:
5810 return TREEVIEW_SetUnicodeFormat(infoPtr, (BOOL)wParam);
5811
5812 case TVM_SORTCHILDREN:
5813 return TREEVIEW_SortChildren(infoPtr, lParam);
5814
5815 case TVM_SORTCHILDRENCB:
5816 return TREEVIEW_SortChildrenCB(infoPtr, (LPTVSORTCB)lParam);
5817
5818 case WM_CHAR:
5819 return TREEVIEW_ProcessLetterKeys(infoPtr, wParam, lParam);
5820
5821 case WM_COMMAND:
5822 return TREEVIEW_Command(infoPtr, wParam, lParam);
5823
5824 case WM_DESTROY:
5825 return TREEVIEW_Destroy(infoPtr);
5826
5827 /* WM_ENABLE */
5828
5829 case WM_ERASEBKGND:
5830 return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
5831
5832 case WM_GETDLGCODE:
5833 return DLGC_WANTARROWS | DLGC_WANTCHARS;
5834
5835 case WM_GETFONT:
5836 return TREEVIEW_GetFont(infoPtr);
5837
5838 case WM_HSCROLL:
5839 return TREEVIEW_HScroll(infoPtr, wParam);
5840
5841 case WM_KEYDOWN:
5842 #ifndef __REACTOS__
5843 case WM_SYSKEYDOWN:
5844 #endif
5845 return TREEVIEW_KeyDown(infoPtr, wParam);
5846
5847 case WM_KILLFOCUS:
5848 return TREEVIEW_KillFocus(infoPtr);
5849
5850 case WM_LBUTTONDBLCLK:
5851 return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
5852
5853 case WM_LBUTTONDOWN:
5854 return TREEVIEW_LButtonDown(infoPtr, lParam);
5855
5856 /* WM_MBUTTONDOWN */
5857
5858 case WM_MOUSELEAVE:
5859 return TREEVIEW_MouseLeave(infoPtr);
5860
5861 case WM_MOUSEMOVE:
5862 return TREEVIEW_MouseMove(infoPtr, lParam);
5863
5864 case WM_NCLBUTTONDOWN:
5865 if (infoPtr->hwndEdit)
5866 SetFocus(infoPtr->hwnd);
5867 goto def;
5868
5869 case WM_NCPAINT:
5870 return TREEVIEW_NCPaint (infoPtr, (HRGN)wParam, lParam);
5871
5872 case WM_NOTIFY:
5873 return TREEVIEW_Notify(infoPtr, wParam, lParam);
5874
5875 case WM_NOTIFYFORMAT:
5876 return TREEVIEW_NotifyFormat(infoPtr, (HWND)wParam, (UINT)lParam);
5877
5878 case WM_PRINTCLIENT:
5879 return TREEVIEW_PrintClient(infoPtr, (HDC)wParam, lParam);
5880
5881 case WM_PAINT:
5882 return TREEVIEW_Paint(infoPtr, (HDC)wParam);
5883
5884 case WM_RBUTTONDOWN:
5885 return TREEVIEW_RButtonDown(infoPtr, lParam);
5886
5887 case WM_SETCURSOR:
5888 return TREEVIEW_SetCursor(infoPtr, wParam, lParam);
5889
5890 case WM_SETFOCUS:
5891 return TREEVIEW_SetFocus(infoPtr);
5892
5893 case WM_SETFONT:
5894 return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
5895
5896 case WM_SETREDRAW:
5897 return TREEVIEW_SetRedraw(infoPtr, wParam);
5898
5899 case WM_SIZE:
5900 return TREEVIEW_Size(infoPtr, wParam, lParam);
5901
5902 case WM_STYLECHANGED:
5903 return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
5904
5905 case WM_SYSCOLORCHANGE:
5906 COMCTL32_RefreshSysColors();
5907 return 0;
5908
5909 case WM_TIMER:
5910 return TREEVIEW_HandleTimer(infoPtr, wParam);
5911
5912 case WM_THEMECHANGED:
5913 return TREEVIEW_ThemeChanged (infoPtr);
5914
5915 case WM_VSCROLL:
5916 return TREEVIEW_VScroll(infoPtr, wParam);
5917
5918 /* WM_WININICHANGE */
5919
5920 case WM_MOUSEWHEEL:
5921 return TREEVIEW_MouseWheel(infoPtr, wParam, lParam);
5922
5923 case WM_DRAWITEM:
5924 TRACE("drawItem\n");
5925 goto def;
5926
5927 default:
5928 /* This mostly catches MFC and Delphi messages. :( */
5929 if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
5930 TRACE("Unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
5931 def:
5932 return DefWindowProcW(hwnd, uMsg, wParam, lParam);
5933 }
5934 }
5935
5936
5937 /* Class Registration ***************************************************/
5938
5939 VOID
TREEVIEW_Register(void)5940 TREEVIEW_Register(void)
5941 {
5942 WNDCLASSW wndClass;
5943
5944 TRACE("\n");
5945
5946 ZeroMemory(&wndClass, sizeof(WNDCLASSW));
5947 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
5948 wndClass.lpfnWndProc = TREEVIEW_WindowProc;
5949 wndClass.cbClsExtra = 0;
5950 wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
5951
5952 wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
5953 wndClass.hbrBackground = 0;
5954 wndClass.lpszClassName = WC_TREEVIEWW;
5955
5956 RegisterClassW(&wndClass);
5957 }
5958
5959
5960 VOID
TREEVIEW_Unregister(void)5961 TREEVIEW_Unregister(void)
5962 {
5963 UnregisterClassW(WC_TREEVIEWW, NULL);
5964 }
5965
5966
5967 /* Tree Verification ****************************************************/
5968
5969 static inline void
5970 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item);
5971
TREEVIEW_VerifyItemCommon(TREEVIEW_INFO * infoPtr,const TREEVIEW_ITEM * item)5972 static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
5973 const TREEVIEW_ITEM *item)
5974 {
5975 assert(infoPtr != NULL);
5976 assert(item != NULL);
5977
5978 /* both NULL, or both non-null */
5979 assert((item->firstChild == NULL) == (item->lastChild == NULL));
5980
5981 assert(item->firstChild != item);
5982 assert(item->lastChild != item);
5983
5984 if (item->firstChild)
5985 {
5986 assert(item->firstChild->parent == item);
5987 assert(item->firstChild->prevSibling == NULL);
5988 }
5989
5990 if (item->lastChild)
5991 {
5992 assert(item->lastChild->parent == item);
5993 assert(item->lastChild->nextSibling == NULL);
5994 }
5995
5996 assert(item->nextSibling != item);
5997 if (item->nextSibling)
5998 {
5999 assert(item->nextSibling->parent == item->parent);
6000 assert(item->nextSibling->prevSibling == item);
6001 }
6002
6003 assert(item->prevSibling != item);
6004 if (item->prevSibling)
6005 {
6006 assert(item->prevSibling->parent == item->parent);
6007 assert(item->prevSibling->nextSibling == item);
6008 }
6009 }
6010
6011 static inline void
TREEVIEW_VerifyItem(TREEVIEW_INFO * infoPtr,const TREEVIEW_ITEM * item)6012 TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
6013 {
6014 assert(item != NULL);
6015
6016 assert(item->parent != NULL);
6017 assert(item->parent != item);
6018 assert(item->iLevel == item->parent->iLevel + 1);
6019
6020 assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
6021
6022 TREEVIEW_VerifyItemCommon(infoPtr, item);
6023
6024 TREEVIEW_VerifyChildren(infoPtr, item);
6025 }
6026
6027 static inline void
TREEVIEW_VerifyChildren(TREEVIEW_INFO * infoPtr,const TREEVIEW_ITEM * item)6028 TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, const TREEVIEW_ITEM *item)
6029 {
6030 const TREEVIEW_ITEM *child;
6031 assert(item != NULL);
6032
6033 for (child = item->firstChild; child != NULL; child = child->nextSibling)
6034 TREEVIEW_VerifyItem(infoPtr, child);
6035 }
6036
6037 static inline void
TREEVIEW_VerifyRoot(TREEVIEW_INFO * infoPtr)6038 TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
6039 {
6040 TREEVIEW_ITEM *root = infoPtr->root;
6041
6042 assert(root != NULL);
6043 assert(root->iLevel == -1);
6044 assert(root->parent == NULL);
6045 assert(root->prevSibling == NULL);
6046
6047 TREEVIEW_VerifyItemCommon(infoPtr, root);
6048
6049 TREEVIEW_VerifyChildren(infoPtr, root);
6050 }
6051
6052 static void
TREEVIEW_VerifyTree(TREEVIEW_INFO * infoPtr)6053 TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
6054 {
6055 if (!TRACE_ON(treeview)) return;
6056
6057 assert(infoPtr != NULL);
6058 TREEVIEW_VerifyRoot(infoPtr);
6059 }
6060