1 /* 2 * Header control 3 * 4 * Copyright 1998 Eric Kohl 5 * Copyright 2000 Eric Kohl for CodeWeavers 6 * Copyright 2003 Maxime Bellenge 7 * Copyright 2006 Mikolaj Zalewski 8 * 9 * This library is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU Lesser General Public 11 * License as published by the Free Software Foundation; either 12 * version 2.1 of the License, or (at your option) any later version. 13 * 14 * This library is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * Lesser General Public License for more details. 18 * 19 * You should have received a copy of the GNU Lesser General Public 20 * License along with this library; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA 22 * 23 * TODO: 24 * - Imagelist support (completed?) 25 * - Hottrack support (completed?) 26 * - Filters support (HDS_FILTER, HDI_FILTER, HDM_*FILTER*, HDN_*FILTER*) 27 * - New Windows Vista features 28 */ 29 30 #include <stdarg.h> 31 #include <stdlib.h> 32 #include <string.h> 33 34 #include "windef.h" 35 #include "winbase.h" 36 #include "wingdi.h" 37 #include "winuser.h" 38 #include "winnls.h" 39 #include "commctrl.h" 40 #include "comctl32.h" 41 #include "vssym32.h" 42 #include "uxtheme.h" 43 #include "wine/debug.h" 44 #include "wine/heap.h" 45 46 WINE_DEFAULT_DEBUG_CHANNEL(header); 47 48 typedef struct 49 { 50 INT cxy; 51 HBITMAP hbm; 52 LPWSTR pszText; 53 INT fmt; 54 LPARAM lParam; 55 INT iImage; 56 INT iOrder; /* see documentation of HD_ITEM */ 57 58 BOOL bDown; /* is item pressed? (used for drawing) */ 59 RECT rect; /* bounding rectangle of the item */ 60 DWORD callbackMask; /* HDI_* flags for items that are callback */ 61 } HEADER_ITEM; 62 63 64 typedef struct 65 { 66 HWND hwndSelf; /* Control window */ 67 HWND hwndNotify; /* Owner window to send notifications to */ 68 INT nNotifyFormat; /* format used for WM_NOTIFY messages */ 69 UINT uNumItem; /* number of items (columns) */ 70 INT nHeight; /* height of the header (pixels) */ 71 HFONT hFont; /* handle to the current font */ 72 HCURSOR hcurArrow; /* handle to the arrow cursor */ 73 HCURSOR hcurDivider; /* handle to a cursor (used over dividers) <-|-> */ 74 HCURSOR hcurDivopen; /* handle to a cursor (used over dividers) <-||-> */ 75 BOOL bCaptured; /* Is the mouse captured? */ 76 BOOL bPressed; /* Is a header item pressed (down)? */ 77 BOOL bDragging; /* Are we dragging an item? */ 78 BOOL bTracking; /* Is in tracking mode? */ 79 POINT ptLButtonDown; /* The point where the left button was pressed */ 80 DWORD dwStyle; /* the cached window GWL_STYLE */ 81 INT iMoveItem; /* index of tracked item. (Tracking mode) */ 82 INT xTrackOffset; /* distance between the right side of the tracked item and the cursor */ 83 INT xOldTrack; /* track offset (see above) after the last WM_MOUSEMOVE */ 84 INT iHotItem; /* index of hot item (cursor is over this item) */ 85 INT iHotDivider; /* index of the hot divider (used while dragging an item or by HDM_SETHOTDIVIDER) */ 86 INT iMargin; /* width of the margin that surrounds a bitmap */ 87 INT filter_change_timeout; /* change timeout set with HDM_SETFILTERCHANGETIMEOUT */ 88 89 HIMAGELIST himl; /* handle to an image list (may be 0) */ 90 HEADER_ITEM *items; /* pointer to array of HEADER_ITEM's */ 91 INT *order; /* array of item IDs indexed by order */ 92 BOOL bRectsValid; /* validity flag for bounding rectangles */ 93 } HEADER_INFO; 94 95 96 #define VERT_BORDER 4 97 #define DIVIDER_WIDTH 10 98 #define HOT_DIVIDER_WIDTH 2 99 #define MAX_HEADER_TEXT_LEN 260 100 #define HDN_UNICODE_OFFSET 20 101 #define HDN_FIRST_UNICODE (HDN_FIRST-HDN_UNICODE_OFFSET) 102 103 #define HDI_SUPPORTED_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP|HDI_IMAGE|HDI_ORDER) 104 #define HDI_UNSUPPORTED_FIELDS (HDI_FILTER) 105 #define HDI_UNKNOWN_FIELDS (~(HDI_SUPPORTED_FIELDS|HDI_UNSUPPORTED_FIELDS|HDI_DI_SETITEM)) 106 #define HDI_COMCTL32_4_0_FIELDS (HDI_WIDTH|HDI_TEXT|HDI_FORMAT|HDI_LPARAM|HDI_BITMAP) 107 108 109 static BOOL HEADER_PrepareCallbackItems(const HEADER_INFO *infoPtr, INT iItem, INT reqMask); 110 static void HEADER_FreeCallbackItems(HEADER_ITEM *lpItem); 111 static LRESULT HEADER_SendNotify(const HEADER_INFO *infoPtr, UINT code, NMHDR *hdr); 112 static LRESULT HEADER_SendCtrlCustomDraw(const HEADER_INFO *infoPtr, DWORD dwDrawStage, HDC hdc, const RECT *rect); 113 114 static const WCHAR themeClass[] = {'H','e','a','d','e','r',0}; 115 116 static void HEADER_StoreHDItemInHeader(HEADER_ITEM *lpItem, UINT mask, const HDITEMW *phdi, BOOL fUnicode) 117 { 118 if (mask & HDI_UNSUPPORTED_FIELDS) 119 FIXME("unsupported header fields %x\n", (mask & HDI_UNSUPPORTED_FIELDS)); 120 121 if (mask & HDI_BITMAP) 122 lpItem->hbm = phdi->hbm; 123 124 if (mask & HDI_FORMAT) 125 lpItem->fmt = phdi->fmt; 126 127 if (mask & HDI_LPARAM) 128 lpItem->lParam = phdi->lParam; 129 130 if (mask & HDI_WIDTH) 131 lpItem->cxy = phdi->cxy; 132 133 if (mask & HDI_IMAGE) 134 { 135 lpItem->iImage = phdi->iImage; 136 if (phdi->iImage == I_IMAGECALLBACK) 137 lpItem->callbackMask |= HDI_IMAGE; 138 else 139 lpItem->callbackMask &= ~HDI_IMAGE; 140 } 141 142 if (mask & HDI_TEXT) 143 { 144 heap_free(lpItem->pszText); 145 lpItem->pszText = NULL; 146 147 if (phdi->pszText != LPSTR_TEXTCALLBACKW) /* covers != TEXTCALLBACKA too */ 148 { 149 static const WCHAR emptyString[] = {0}; 150 151 LPCWSTR pszText = (phdi->pszText != NULL ? phdi->pszText : emptyString); 152 if (fUnicode) 153 Str_SetPtrW(&lpItem->pszText, pszText); 154 else 155 Str_SetPtrAtoW(&lpItem->pszText, (LPCSTR)pszText); 156 lpItem->callbackMask &= ~HDI_TEXT; 157 } 158 else 159 { 160 lpItem->pszText = NULL; 161 lpItem->callbackMask |= HDI_TEXT; 162 } 163 } 164 } 165 166 static inline LRESULT 167 HEADER_IndexToOrder (const HEADER_INFO *infoPtr, INT iItem) 168 { 169 HEADER_ITEM *lpItem = &infoPtr->items[iItem]; 170 return lpItem->iOrder; 171 } 172 173 174 static INT 175 HEADER_OrderToIndex(const HEADER_INFO *infoPtr, INT iorder) 176 { 177 if ((iorder <0) || iorder >= infoPtr->uNumItem) 178 return iorder; 179 return infoPtr->order[iorder]; 180 } 181 182 static void 183 HEADER_ChangeItemOrder(const HEADER_INFO *infoPtr, INT iItem, INT iNewOrder) 184 { 185 HEADER_ITEM *lpItem = &infoPtr->items[iItem]; 186 INT i, nMin, nMax; 187 188 TRACE("%d: %d->%d\n", iItem, lpItem->iOrder, iNewOrder); 189 if (lpItem->iOrder < iNewOrder) 190 { 191 memmove(&infoPtr->order[lpItem->iOrder], 192 &infoPtr->order[lpItem->iOrder + 1], 193 (iNewOrder - lpItem->iOrder) * sizeof(INT)); 194 } 195 if (iNewOrder < lpItem->iOrder) 196 { 197 memmove(&infoPtr->order[iNewOrder + 1], 198 &infoPtr->order[iNewOrder], 199 (lpItem->iOrder - iNewOrder) * sizeof(INT)); 200 } 201 infoPtr->order[iNewOrder] = iItem; 202 nMin = min(lpItem->iOrder, iNewOrder); 203 nMax = max(lpItem->iOrder, iNewOrder); 204 for (i = nMin; i <= nMax; i++) 205 infoPtr->items[infoPtr->order[i]].iOrder = i; 206 } 207 208 /* Note: if iItem is the last item then this function returns infoPtr->uNumItem */ 209 static INT 210 HEADER_NextItem(const HEADER_INFO *infoPtr, INT iItem) 211 { 212 return HEADER_OrderToIndex(infoPtr, HEADER_IndexToOrder(infoPtr, iItem)+1); 213 } 214 215 static INT 216 HEADER_PrevItem(const HEADER_INFO *infoPtr, INT iItem) 217 { 218 return HEADER_OrderToIndex(infoPtr, HEADER_IndexToOrder(infoPtr, iItem)-1); 219 } 220 221 /* TRUE when item is not resizable with dividers, 222 note that valid index should be supplied */ 223 static inline BOOL 224 HEADER_IsItemFixed(const HEADER_INFO *infoPtr, INT iItem) 225 { 226 return (infoPtr->dwStyle & HDS_NOSIZING) || (infoPtr->items[iItem].fmt & HDF_FIXEDWIDTH); 227 } 228 229 static void 230 HEADER_SetItemBounds (HEADER_INFO *infoPtr) 231 { 232 HEADER_ITEM *phdi; 233 RECT rect; 234 unsigned int i; 235 int x; 236 237 infoPtr->bRectsValid = TRUE; 238 239 if (infoPtr->uNumItem == 0) 240 return; 241 242 GetClientRect (infoPtr->hwndSelf, &rect); 243 244 x = rect.left; 245 for (i = 0; i < infoPtr->uNumItem; i++) { 246 phdi = &infoPtr->items[HEADER_OrderToIndex(infoPtr,i)]; 247 phdi->rect.top = rect.top; 248 phdi->rect.bottom = rect.bottom; 249 phdi->rect.left = x; 250 phdi->rect.right = phdi->rect.left + ((phdi->cxy>0)?phdi->cxy:0); 251 x = phdi->rect.right; 252 } 253 } 254 255 static LRESULT 256 HEADER_Size (HEADER_INFO *infoPtr) 257 { 258 HEADER_SetItemBounds(infoPtr); 259 return 0; 260 } 261 262 static void HEADER_GetHotDividerRect(const HEADER_INFO *infoPtr, RECT *r) 263 { 264 INT iDivider = infoPtr->iHotDivider; 265 if (infoPtr->uNumItem > 0) 266 { 267 HEADER_ITEM *lpItem; 268 269 if (iDivider < infoPtr->uNumItem) 270 { 271 lpItem = &infoPtr->items[iDivider]; 272 r->left = lpItem->rect.left - HOT_DIVIDER_WIDTH/2; 273 r->right = lpItem->rect.left + HOT_DIVIDER_WIDTH/2; 274 } 275 else 276 { 277 lpItem = &infoPtr->items[HEADER_OrderToIndex(infoPtr, infoPtr->uNumItem-1)]; 278 r->left = lpItem->rect.right - HOT_DIVIDER_WIDTH/2; 279 r->right = lpItem->rect.right + HOT_DIVIDER_WIDTH/2; 280 } 281 r->top = lpItem->rect.top; 282 r->bottom = lpItem->rect.bottom; 283 } 284 else 285 { 286 RECT clientRect; 287 GetClientRect(infoPtr->hwndSelf, &clientRect); 288 *r = clientRect; 289 r->right = r->left + HOT_DIVIDER_WIDTH/2; 290 } 291 } 292 293 static void 294 HEADER_FillItemFrame(HEADER_INFO *infoPtr, HDC hdc, RECT *r, const HEADER_ITEM *item, BOOL hottrack) 295 { 296 HTHEME theme = GetWindowTheme (infoPtr->hwndSelf); 297 298 if (theme) { 299 int state = (item->bDown) ? HIS_PRESSED : (hottrack ? HIS_HOT : HIS_NORMAL); 300 DrawThemeBackground (theme, hdc, HP_HEADERITEM, state, r, NULL); 301 GetThemeBackgroundContentRect (theme, hdc, HP_HEADERITEM, state, r, r); 302 } 303 else 304 { 305 HBRUSH hbr = CreateSolidBrush(GetBkColor(hdc)); 306 FillRect(hdc, r, hbr); 307 DeleteObject(hbr); 308 } 309 } 310 311 static void 312 HEADER_DrawItemFrame(HEADER_INFO *infoPtr, HDC hdc, RECT *r, const HEADER_ITEM *item) 313 { 314 if (GetWindowTheme(infoPtr->hwndSelf)) return; 315 316 if (!(infoPtr->dwStyle & HDS_FLAT)) 317 { 318 if (infoPtr->dwStyle & HDS_BUTTONS) { 319 if (item->bDown) 320 DrawEdge (hdc, r, BDR_RAISEDOUTER, BF_RECT | BF_FLAT | BF_ADJUST); 321 else 322 DrawEdge (hdc, r, EDGE_RAISED, BF_RECT | BF_SOFT | BF_ADJUST); 323 } 324 else 325 DrawEdge (hdc, r, EDGE_ETCHED, BF_BOTTOM | BF_RIGHT | BF_ADJUST); 326 } 327 } 328 329 /* Create a region for the sort arrow with its bounding rect's top-left 330 co-ord x,y and its height h. */ 331 static HRGN create_sort_arrow( INT x, INT y, INT h, BOOL is_up ) 332 { 333 char buffer[256]; 334 RGNDATA *data = (RGNDATA *)buffer; 335 DWORD size = FIELD_OFFSET(RGNDATA, Buffer[h * sizeof(RECT)]); 336 INT i, yinc = 1; 337 HRGN rgn; 338 339 if (size > sizeof(buffer)) 340 { 341 data = heap_alloc( size ); 342 if (!data) return NULL; 343 } 344 data->rdh.dwSize = sizeof(data->rdh); 345 data->rdh.iType = RDH_RECTANGLES; 346 data->rdh.nCount = 0; 347 data->rdh.nRgnSize = h * sizeof(RECT); 348 349 if (!is_up) 350 { 351 y += h - 1; 352 yinc = -1; 353 } 354 355 x += h - 1; /* set x to the centre */ 356 357 for (i = 0; i < h; i++, y += yinc) 358 { 359 RECT *rect = (RECT *)data->Buffer + data->rdh.nCount; 360 rect->left = x - i; 361 rect->top = y; 362 rect->right = x + i + 1; 363 rect->bottom = y + 1; 364 data->rdh.nCount++; 365 } 366 rgn = ExtCreateRegion( NULL, size, data ); 367 if (data != (RGNDATA *)buffer) heap_free( data ); 368 return rgn; 369 } 370 371 static INT 372 HEADER_DrawItem (HEADER_INFO *infoPtr, HDC hdc, INT iItem, BOOL bHotTrack, LRESULT lCDFlags) 373 { 374 HEADER_ITEM *phdi = &infoPtr->items[iItem]; 375 RECT r; 376 INT oldBkMode; 377 HTHEME theme = GetWindowTheme (infoPtr->hwndSelf); 378 NMCUSTOMDRAW nmcd; 379 int state = 0; 380 381 TRACE("DrawItem(iItem %d bHotTrack %d unicode flag %d)\n", iItem, bHotTrack, (infoPtr->nNotifyFormat == NFR_UNICODE)); 382 383 r = phdi->rect; 384 if (r.right - r.left == 0) 385 return phdi->rect.right; 386 387 if (theme) 388 state = (phdi->bDown) ? HIS_PRESSED : (bHotTrack ? HIS_HOT : HIS_NORMAL); 389 390 /* Set the colors before sending NM_CUSTOMDRAW so that it can change them */ 391 SetTextColor(hdc, (bHotTrack && !theme) ? comctl32_color.clrHighlight : comctl32_color.clrBtnText); 392 SetBkColor(hdc, comctl32_color.clr3dFace); 393 394 if (lCDFlags & CDRF_NOTIFYITEMDRAW && !(phdi->fmt & HDF_OWNERDRAW)) 395 { 396 LRESULT lCDItemFlags; 397 398 nmcd.dwDrawStage = CDDS_PREPAINT | CDDS_ITEM; 399 nmcd.hdc = hdc; 400 nmcd.dwItemSpec = iItem; 401 nmcd.rc = r; 402 nmcd.uItemState = phdi->bDown ? CDIS_SELECTED : 0; 403 nmcd.lItemlParam = phdi->lParam; 404 405 lCDItemFlags = HEADER_SendNotify(infoPtr, NM_CUSTOMDRAW, (NMHDR *)&nmcd); 406 if (lCDItemFlags & CDRF_SKIPDEFAULT) 407 return phdi->rect.right; 408 } 409 410 /* Fill background, owner could draw over it. */ 411 HEADER_FillItemFrame(infoPtr, hdc, &r, phdi, bHotTrack); 412 413 if (phdi->fmt & HDF_OWNERDRAW) 414 { 415 DRAWITEMSTRUCT dis; 416 BOOL ret; 417 418 dis.CtlType = ODT_HEADER; 419 dis.CtlID = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID); 420 dis.itemID = iItem; 421 dis.itemAction = ODA_DRAWENTIRE; 422 dis.itemState = phdi->bDown ? ODS_SELECTED : 0; 423 dis.hwndItem = infoPtr->hwndSelf; 424 dis.hDC = hdc; 425 dis.rcItem = phdi->rect; 426 dis.itemData = phdi->lParam; 427 oldBkMode = SetBkMode(hdc, TRANSPARENT); 428 ret = SendMessageW (infoPtr->hwndNotify, WM_DRAWITEM, dis.CtlID, (LPARAM)&dis); 429 if (oldBkMode != TRANSPARENT) 430 SetBkMode(hdc, oldBkMode); 431 432 if (!ret) 433 HEADER_FillItemFrame(infoPtr, hdc, &r, phdi, bHotTrack); 434 435 /* Edges are always drawn if we don't have attached theme. */ 436 HEADER_DrawItemFrame(infoPtr, hdc, &r, phdi); 437 /* If application processed WM_DRAWITEM we should skip label painting, 438 edges are drawn no matter what. */ 439 if (ret) return phdi->rect.right; 440 } 441 else 442 HEADER_DrawItemFrame(infoPtr, hdc, &r, phdi); 443 444 if (phdi->bDown) { 445 r.left += 2; 446 r.top += 2; 447 } 448 449 /* Now text and image */ 450 { 451 INT rw, rh; /* width and height of r */ 452 INT *x = NULL; /* x and ... */ 453 UINT *w = NULL; /* ... width of the pic (bmp or img) which is part of cnt */ 454 /* cnt,txt,img,bmp */ 455 INT cx, tx, ix, bx; 456 UINT cw, tw, iw, bw; 457 INT img_cx, img_cy; 458 INT sort_w, sort_x, sort_h; 459 BITMAP bmp; 460 461 HEADER_PrepareCallbackItems(infoPtr, iItem, HDI_TEXT|HDI_IMAGE); 462 cw = iw = bw = sort_w = sort_h = 0; 463 rw = r.right - r.left; 464 rh = r.bottom - r.top; 465 466 if (phdi->fmt & HDF_STRING) { 467 RECT textRect; 468 469 SetRectEmpty(&textRect); 470 471 if (theme) { 472 GetThemeTextExtent(theme, hdc, HP_HEADERITEM, state, phdi->pszText, -1, 473 DT_LEFT|DT_VCENTER|DT_SINGLELINE, NULL, &textRect); 474 } else { 475 DrawTextW (hdc, phdi->pszText, -1, 476 &textRect, DT_LEFT|DT_VCENTER|DT_SINGLELINE|DT_CALCRECT); 477 } 478 cw = textRect.right - textRect.left + 2 * infoPtr->iMargin; 479 } 480 481 if (phdi->fmt & (HDF_SORTUP | HDF_SORTDOWN)) { 482 sort_h = MulDiv( infoPtr->nHeight - VERT_BORDER, 4, 13 ); 483 sort_w = 2 * sort_h - 1 + infoPtr->iMargin * 2; 484 cw += sort_w; 485 } else { /* sort arrows take precedent over images/bitmaps */ 486 if ((phdi->fmt & HDF_IMAGE) && ImageList_GetIconSize( infoPtr->himl, &img_cx, &img_cy )) { 487 iw = img_cx + 2 * infoPtr->iMargin; 488 x = &ix; 489 w = &iw; 490 } 491 492 if ((phdi->fmt & HDF_BITMAP) && (phdi->hbm)) { 493 GetObjectW (phdi->hbm, sizeof(BITMAP), &bmp); 494 bw = bmp.bmWidth + 2 * infoPtr->iMargin; 495 if (!iw) { 496 x = &bx; 497 w = &bw; 498 } 499 } 500 if (bw || iw) 501 cw += *w; 502 } 503 504 /* align cx using the unclipped cw */ 505 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_LEFT) 506 cx = r.left; 507 else if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_CENTER) 508 cx = r.left + rw / 2 - cw / 2; 509 else /* HDF_RIGHT */ 510 cx = r.right - cw; 511 512 /* clip cx & cw */ 513 if (cx < r.left) 514 cx = r.left; 515 if (cx + cw > r.right) 516 cw = r.right - cx; 517 518 tx = cx + infoPtr->iMargin; 519 /* since cw might have changed we have to recalculate tw */ 520 tw = cw - infoPtr->iMargin * 2; 521 522 tw -= sort_w; 523 sort_x = cx + tw + infoPtr->iMargin * 3; 524 525 if (iw || bw) { 526 tw -= *w; 527 if (phdi->fmt & HDF_BITMAP_ON_RIGHT) { 528 /* put pic behind text */ 529 *x = cx + tw + infoPtr->iMargin * 3; 530 } else { 531 *x = cx + infoPtr->iMargin; 532 /* move text behind pic */ 533 tx += *w; 534 } 535 } 536 537 if (iw && bw) { 538 /* since we're done with the layout we can 539 now calculate the position of bmp which 540 has no influence on alignment and layout 541 because of img */ 542 if ((phdi->fmt & HDF_JUSTIFYMASK) == HDF_RIGHT) 543 bx = cx - bw + infoPtr->iMargin; 544 else 545 bx = cx + cw + infoPtr->iMargin; 546 } 547 548 if (sort_w || iw || bw) { 549 HDC hClipDC = GetDC(infoPtr->hwndSelf); 550 HRGN hClipRgn = CreateRectRgn(r.left, r.top, r.right, r.bottom); 551 SelectClipRgn(hClipDC, hClipRgn); 552 553 if (sort_w) { 554 HRGN arrow = create_sort_arrow( sort_x, r.top + (rh - sort_h) / 2, 555 sort_h, phdi->fmt & HDF_SORTUP ); 556 if (arrow) { 557 FillRgn( hClipDC, arrow, GetSysColorBrush( COLOR_GRAYTEXT ) ); 558 DeleteObject( arrow ); 559 } 560 } 561 562 if (bw) { 563 HDC hdcBitmap = CreateCompatibleDC (hClipDC); 564 SelectObject (hdcBitmap, phdi->hbm); 565 BitBlt (hClipDC, bx, r.top + (rh - bmp.bmHeight) / 2, 566 bmp.bmWidth, bmp.bmHeight, hdcBitmap, 0, 0, SRCCOPY); 567 DeleteDC (hdcBitmap); 568 } 569 570 if (iw) { 571 ImageList_DrawEx (infoPtr->himl, phdi->iImage, hClipDC, 572 ix, r.top + (rh - img_cy) / 2, 573 img_cx, img_cy, CLR_DEFAULT, CLR_DEFAULT, 0); 574 } 575 576 DeleteObject(hClipRgn); 577 ReleaseDC(infoPtr->hwndSelf, hClipDC); 578 } 579 580 if (((phdi->fmt & HDF_STRING) 581 || (!(phdi->fmt & (HDF_OWNERDRAW|HDF_STRING|HDF_BITMAP| 582 HDF_BITMAP_ON_RIGHT|HDF_IMAGE)))) /* no explicit format specified? */ 583 && (phdi->pszText)) { 584 oldBkMode = SetBkMode(hdc, TRANSPARENT); 585 r.left = tx; 586 r.right = tx + tw; 587 if (theme) { 588 DrawThemeText(theme, hdc, HP_HEADERITEM, state, phdi->pszText, 589 -1, DT_LEFT|DT_END_ELLIPSIS|DT_VCENTER|DT_SINGLELINE, 590 0, &r); 591 } else { 592 DrawTextW (hdc, phdi->pszText, -1, 593 &r, DT_LEFT|DT_END_ELLIPSIS|DT_VCENTER|DT_SINGLELINE); 594 } 595 if (oldBkMode != TRANSPARENT) 596 SetBkMode(hdc, oldBkMode); 597 } 598 HEADER_FreeCallbackItems(phdi); 599 } 600 601 return phdi->rect.right; 602 } 603 604 static void 605 HEADER_DrawHotDivider(const HEADER_INFO *infoPtr, HDC hdc) 606 { 607 HBRUSH brush; 608 RECT r; 609 610 HEADER_GetHotDividerRect(infoPtr, &r); 611 brush = CreateSolidBrush(comctl32_color.clrHighlight); 612 FillRect(hdc, &r, brush); 613 DeleteObject(brush); 614 } 615 616 static void 617 HEADER_Refresh (HEADER_INFO *infoPtr, HDC hdc) 618 { 619 HFONT hFont, hOldFont; 620 RECT rect, rcRest; 621 HBRUSH hbrBk; 622 UINT i; 623 INT x; 624 LRESULT lCDFlags; 625 HTHEME theme = GetWindowTheme (infoPtr->hwndSelf); 626 627 if (!infoPtr->bRectsValid) 628 HEADER_SetItemBounds(infoPtr); 629 630 /* get rect for the bar, adjusted for the border */ 631 GetClientRect (infoPtr->hwndSelf, &rect); 632 lCDFlags = HEADER_SendCtrlCustomDraw(infoPtr, CDDS_PREPAINT, hdc, &rect); 633 634 if (infoPtr->bDragging) 635 ImageList_DragShowNolock(FALSE); 636 637 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT); 638 hOldFont = SelectObject (hdc, hFont); 639 640 /* draw Background */ 641 if (infoPtr->uNumItem == 0 && theme == NULL) { 642 hbrBk = GetSysColorBrush(COLOR_3DFACE); 643 FillRect(hdc, &rect, hbrBk); 644 } 645 646 x = rect.left; 647 for (i = 0; x <= rect.right && i < infoPtr->uNumItem; i++) { 648 int idx = HEADER_OrderToIndex(infoPtr,i); 649 if (RectVisible(hdc, &infoPtr->items[idx].rect)) 650 HEADER_DrawItem(infoPtr, hdc, idx, infoPtr->iHotItem == idx, lCDFlags); 651 x = infoPtr->items[idx].rect.right; 652 } 653 654 rcRest = rect; 655 rcRest.left = x; 656 if ((x <= rect.right) && RectVisible(hdc, &rcRest) && (infoPtr->uNumItem > 0)) { 657 if (theme != NULL) { 658 DrawThemeBackground(theme, hdc, HP_HEADERITEM, HIS_NORMAL, &rcRest, NULL); 659 } 660 else if (infoPtr->dwStyle & HDS_FLAT) { 661 hbrBk = GetSysColorBrush(COLOR_3DFACE); 662 FillRect(hdc, &rcRest, hbrBk); 663 } 664 else 665 { 666 if (infoPtr->dwStyle & HDS_BUTTONS) 667 DrawEdge (hdc, &rcRest, EDGE_RAISED, BF_TOP|BF_LEFT|BF_BOTTOM|BF_SOFT|BF_MIDDLE); 668 else 669 DrawEdge (hdc, &rcRest, EDGE_ETCHED, BF_BOTTOM|BF_MIDDLE); 670 } 671 } 672 673 if (infoPtr->iHotDivider != -1) 674 HEADER_DrawHotDivider(infoPtr, hdc); 675 676 if (infoPtr->bDragging) 677 ImageList_DragShowNolock(TRUE); 678 SelectObject (hdc, hOldFont); 679 680 if (lCDFlags & CDRF_NOTIFYPOSTPAINT) 681 HEADER_SendCtrlCustomDraw(infoPtr, CDDS_POSTPAINT, hdc, &rect); 682 } 683 684 685 static void 686 HEADER_RefreshItem (HEADER_INFO *infoPtr, INT iItem) 687 { 688 if (!infoPtr->bRectsValid) 689 HEADER_SetItemBounds(infoPtr); 690 691 InvalidateRect(infoPtr->hwndSelf, &infoPtr->items[iItem].rect, FALSE); 692 } 693 694 695 static void 696 HEADER_InternalHitTest (const HEADER_INFO *infoPtr, const POINT *lpPt, UINT *pFlags, INT *pItem) 697 { 698 RECT rect, rcTest; 699 UINT iCount; 700 INT width; 701 BOOL bNoWidth; 702 703 GetClientRect (infoPtr->hwndSelf, &rect); 704 705 *pFlags = 0; 706 bNoWidth = FALSE; 707 if (PtInRect (&rect, *lpPt)) 708 { 709 if (infoPtr->uNumItem == 0) { 710 *pFlags |= HHT_NOWHERE; 711 *pItem = 1; 712 TRACE("NOWHERE\n"); 713 return; 714 } 715 else { 716 /* somewhere inside */ 717 for (iCount = 0; iCount < infoPtr->uNumItem; iCount++) { 718 rect = infoPtr->items[iCount].rect; 719 width = rect.right - rect.left; 720 if (width == 0) { 721 bNoWidth = TRUE; 722 continue; 723 } 724 if (PtInRect (&rect, *lpPt)) { 725 if (width <= 2 * DIVIDER_WIDTH) { 726 *pFlags |= HHT_ONHEADER; 727 *pItem = iCount; 728 TRACE("ON HEADER %d\n", iCount); 729 return; 730 } 731 if (HEADER_IndexToOrder(infoPtr, iCount) > 0) { 732 rcTest = rect; 733 rcTest.right = rcTest.left + DIVIDER_WIDTH; 734 if (PtInRect (&rcTest, *lpPt)) { 735 if (HEADER_IsItemFixed(infoPtr, HEADER_PrevItem(infoPtr, iCount))) 736 { 737 *pFlags |= HHT_ONHEADER; 738 *pItem = iCount; 739 TRACE("ON HEADER %d\n", *pItem); 740 return; 741 } 742 if (bNoWidth) { 743 *pFlags |= HHT_ONDIVOPEN; 744 *pItem = HEADER_PrevItem(infoPtr, iCount); 745 TRACE("ON DIVOPEN %d\n", *pItem); 746 return; 747 } 748 else { 749 *pFlags |= HHT_ONDIVIDER; 750 *pItem = HEADER_PrevItem(infoPtr, iCount); 751 TRACE("ON DIVIDER %d\n", *pItem); 752 return; 753 } 754 } 755 } 756 rcTest = rect; 757 rcTest.left = rcTest.right - DIVIDER_WIDTH; 758 if (!HEADER_IsItemFixed(infoPtr, iCount) && PtInRect (&rcTest, *lpPt)) 759 { 760 *pFlags |= HHT_ONDIVIDER; 761 *pItem = iCount; 762 TRACE("ON DIVIDER %d\n", *pItem); 763 return; 764 } 765 766 *pFlags |= HHT_ONHEADER; 767 *pItem = iCount; 768 TRACE("ON HEADER %d\n", iCount); 769 return; 770 } 771 } 772 773 /* check for last divider part (on nowhere) */ 774 if (!HEADER_IsItemFixed(infoPtr, infoPtr->uNumItem - 1)) 775 { 776 rect = infoPtr->items[infoPtr->uNumItem-1].rect; 777 rect.left = rect.right; 778 rect.right += DIVIDER_WIDTH; 779 if (PtInRect (&rect, *lpPt)) { 780 if (bNoWidth) { 781 *pFlags |= HHT_ONDIVOPEN; 782 *pItem = infoPtr->uNumItem - 1; 783 TRACE("ON DIVOPEN %d\n", *pItem); 784 return; 785 } 786 else { 787 *pFlags |= HHT_ONDIVIDER; 788 *pItem = infoPtr->uNumItem - 1; 789 TRACE("ON DIVIDER %d\n", *pItem); 790 return; 791 } 792 } 793 } 794 795 *pFlags |= HHT_NOWHERE; 796 *pItem = 1; 797 TRACE("NOWHERE\n"); 798 return; 799 } 800 } 801 else { 802 if (lpPt->x < rect.left) { 803 TRACE("TO LEFT\n"); 804 *pFlags |= HHT_TOLEFT; 805 } 806 else if (lpPt->x > rect.right) { 807 TRACE("TO RIGHT\n"); 808 *pFlags |= HHT_TORIGHT; 809 } 810 811 if (lpPt->y < rect.top) { 812 TRACE("ABOVE\n"); 813 *pFlags |= HHT_ABOVE; 814 } 815 else if (lpPt->y > rect.bottom) { 816 TRACE("BELOW\n"); 817 *pFlags |= HHT_BELOW; 818 } 819 } 820 821 *pItem = 1; 822 TRACE("flags=0x%X\n", *pFlags); 823 return; 824 } 825 826 827 static void 828 HEADER_DrawTrackLine (const HEADER_INFO *infoPtr, HDC hdc, INT x) 829 { 830 RECT rect; 831 832 GetClientRect (infoPtr->hwndSelf, &rect); 833 PatBlt( hdc, x, rect.top, 1, rect.bottom - rect.top, DSTINVERT ); 834 } 835 836 /*** 837 * DESCRIPTION: 838 * Convert a HDITEM into the correct format (ANSI/Unicode) to send it in a notify 839 * 840 * PARAMETER(S): 841 * [I] infoPtr : the header that wants to send the notify 842 * [O] dest : The buffer to store the HDITEM for notify. It may be set to a HDITEMA of HDITEMW 843 * [I] src : The source HDITEM. It may be a HDITEMA or HDITEMW 844 * [I] fSourceUnicode : is src a HDITEMW or HDITEMA 845 * [O] ppvScratch : a pointer to a scratch buffer that needs to be freed after 846 * the HDITEM is no longer in use or NULL if none was needed 847 * 848 * NOTE: We depend on HDITEMA and HDITEMW having the same structure 849 */ 850 static void HEADER_CopyHDItemForNotify(const HEADER_INFO *infoPtr, HDITEMW *dest, 851 const HDITEMW *src, BOOL fSourceUnicode, LPVOID *ppvScratch) 852 { 853 *ppvScratch = NULL; 854 *dest = *src; 855 856 if (src->mask & HDI_TEXT && src->pszText != LPSTR_TEXTCALLBACKW) /* covers TEXTCALLBACKA as well */ 857 { 858 if (fSourceUnicode && infoPtr->nNotifyFormat != NFR_UNICODE) 859 { 860 dest->pszText = NULL; 861 Str_SetPtrWtoA((LPSTR *)&dest->pszText, src->pszText); 862 *ppvScratch = dest->pszText; 863 } 864 865 if (!fSourceUnicode && infoPtr->nNotifyFormat == NFR_UNICODE) 866 { 867 dest->pszText = NULL; 868 Str_SetPtrAtoW(&dest->pszText, (LPSTR)src->pszText); 869 *ppvScratch = dest->pszText; 870 } 871 } 872 } 873 874 static UINT HEADER_NotifyCodeWtoA(UINT code) 875 { 876 /* we use the fact that all the unicode messages are in HDN_FIRST_UNICODE..HDN_LAST*/ 877 if (code >= HDN_LAST && code <= HDN_FIRST_UNICODE) 878 return code + HDN_UNICODE_OFFSET; 879 else 880 return code; 881 } 882 883 static LRESULT 884 HEADER_SendNotify(const HEADER_INFO *infoPtr, UINT code, NMHDR *nmhdr) 885 { 886 nmhdr->hwndFrom = infoPtr->hwndSelf; 887 nmhdr->idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID); 888 nmhdr->code = code; 889 890 return SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, 891 nmhdr->idFrom, (LPARAM)nmhdr); 892 } 893 894 static BOOL 895 HEADER_SendSimpleNotify (const HEADER_INFO *infoPtr, UINT code) 896 { 897 NMHDR nmhdr; 898 return (BOOL)HEADER_SendNotify(infoPtr, code, &nmhdr); 899 } 900 901 static LRESULT 902 HEADER_SendCtrlCustomDraw(const HEADER_INFO *infoPtr, DWORD dwDrawStage, HDC hdc, const RECT *rect) 903 { 904 NMCUSTOMDRAW nm; 905 nm.dwDrawStage = dwDrawStage; 906 nm.hdc = hdc; 907 nm.rc = *rect; 908 nm.dwItemSpec = 0; 909 nm.uItemState = 0; 910 nm.lItemlParam = 0; 911 912 return HEADER_SendNotify(infoPtr, NM_CUSTOMDRAW, (NMHDR *)&nm); 913 } 914 915 static BOOL 916 HEADER_SendNotifyWithHDItemT(const HEADER_INFO *infoPtr, UINT code, INT iItem, HDITEMW *lpItem) 917 { 918 NMHEADERW nmhdr; 919 920 if (infoPtr->nNotifyFormat != NFR_UNICODE) 921 code = HEADER_NotifyCodeWtoA(code); 922 nmhdr.iItem = iItem; 923 nmhdr.iButton = 0; 924 nmhdr.pitem = lpItem; 925 926 return (BOOL)HEADER_SendNotify(infoPtr, code, (NMHDR *)&nmhdr); 927 } 928 929 static BOOL 930 HEADER_SendNotifyWithIntFieldT(const HEADER_INFO *infoPtr, UINT code, INT iItem, INT mask, INT iValue) 931 { 932 HDITEMW nmitem; 933 934 /* copying only the iValue should be ok but to make the code more robust we copy everything */ 935 nmitem.cxy = infoPtr->items[iItem].cxy; 936 nmitem.hbm = infoPtr->items[iItem].hbm; 937 nmitem.pszText = NULL; 938 nmitem.cchTextMax = 0; 939 nmitem.fmt = infoPtr->items[iItem].fmt; 940 nmitem.lParam = infoPtr->items[iItem].lParam; 941 nmitem.iOrder = infoPtr->items[iItem].iOrder; 942 nmitem.iImage = infoPtr->items[iItem].iImage; 943 944 nmitem.mask = mask; 945 switch (mask) 946 { 947 case HDI_WIDTH: 948 nmitem.cxy = iValue; 949 break; 950 case HDI_ORDER: 951 nmitem.iOrder = iValue; 952 break; 953 default: 954 ERR("invalid mask value 0x%x\n", iValue); 955 } 956 957 return HEADER_SendNotifyWithHDItemT(infoPtr, code, iItem, &nmitem); 958 } 959 960 /** 961 * Prepare callback items 962 * depends on NMHDDISPINFOW having same structure as NMHDDISPINFOA 963 * (so we handle the two cases only doing a specific cast for pszText). 964 * Checks if any of the required fields is a callback. If this is the case sends a 965 * NMHDISPINFO notify to retrieve these items. The items are stored in the 966 * HEADER_ITEM pszText and iImage fields. They should be freed with 967 * HEADER_FreeCallbackItems. 968 * 969 * @param hwnd : hwnd header container handler 970 * @param iItem : the header item id 971 * @param reqMask : required fields. If any of them is callback this function will fetch it 972 * 973 * @return TRUE on success, else FALSE 974 */ 975 static BOOL 976 HEADER_PrepareCallbackItems(const HEADER_INFO *infoPtr, INT iItem, INT reqMask) 977 { 978 HEADER_ITEM *lpItem = &infoPtr->items[iItem]; 979 DWORD mask = reqMask & lpItem->callbackMask; 980 NMHDDISPINFOW dispInfo; 981 void *pvBuffer = NULL; 982 983 if (mask == 0) 984 return TRUE; 985 if (mask&HDI_TEXT && lpItem->pszText != NULL) 986 { 987 ERR("(): function called without a call to FreeCallbackItems\n"); 988 heap_free(lpItem->pszText); 989 lpItem->pszText = NULL; 990 } 991 992 memset(&dispInfo, 0, sizeof(NMHDDISPINFOW)); 993 dispInfo.hdr.hwndFrom = infoPtr->hwndSelf; 994 dispInfo.hdr.idFrom = GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_ID); 995 if (infoPtr->nNotifyFormat == NFR_UNICODE) 996 { 997 dispInfo.hdr.code = HDN_GETDISPINFOW; 998 if (mask & HDI_TEXT) 999 pvBuffer = heap_alloc_zero(MAX_HEADER_TEXT_LEN * sizeof(WCHAR)); 1000 } 1001 else 1002 { 1003 dispInfo.hdr.code = HDN_GETDISPINFOA; 1004 if (mask & HDI_TEXT) 1005 pvBuffer = heap_alloc_zero(MAX_HEADER_TEXT_LEN * sizeof(CHAR)); 1006 } 1007 dispInfo.pszText = pvBuffer; 1008 dispInfo.cchTextMax = (pvBuffer!=NULL?MAX_HEADER_TEXT_LEN:0); 1009 dispInfo.iItem = iItem; 1010 dispInfo.mask = mask; 1011 dispInfo.lParam = lpItem->lParam; 1012 1013 TRACE("Sending HDN_GETDISPINFO%c\n", infoPtr->nNotifyFormat == NFR_UNICODE?'W':'A'); 1014 SendMessageW(infoPtr->hwndNotify, WM_NOTIFY, dispInfo.hdr.idFrom, (LPARAM)&dispInfo); 1015 1016 TRACE("SendMessage returns(mask:0x%x,str:%s,lParam:%p)\n", 1017 dispInfo.mask, 1018 (infoPtr->nNotifyFormat == NFR_UNICODE ? debugstr_w(dispInfo.pszText) : (LPSTR) dispInfo.pszText), 1019 (void*) dispInfo.lParam); 1020 1021 if (mask & HDI_IMAGE) 1022 lpItem->iImage = dispInfo.iImage; 1023 if (mask & HDI_TEXT) 1024 { 1025 if (infoPtr->nNotifyFormat == NFR_UNICODE) 1026 { 1027 lpItem->pszText = pvBuffer; 1028 1029 /* the user might have used his own buffer */ 1030 if (dispInfo.pszText != lpItem->pszText) 1031 Str_GetPtrW(dispInfo.pszText, lpItem->pszText, MAX_HEADER_TEXT_LEN); 1032 } 1033 else 1034 { 1035 Str_SetPtrAtoW(&lpItem->pszText, (LPSTR)dispInfo.pszText); 1036 heap_free(pvBuffer); 1037 } 1038 } 1039 1040 if (dispInfo.mask & HDI_DI_SETITEM) 1041 { 1042 /* make the items permanent */ 1043 lpItem->callbackMask &= ~dispInfo.mask; 1044 } 1045 1046 return TRUE; 1047 } 1048 1049 /*** 1050 * DESCRIPTION: 1051 * Free the items that might be allocated with HEADER_PrepareCallbackItems 1052 * 1053 * PARAMETER(S): 1054 * [I] lpItem : the item to free the data 1055 * 1056 */ 1057 static void 1058 HEADER_FreeCallbackItems(HEADER_ITEM *lpItem) 1059 { 1060 if (lpItem->callbackMask&HDI_TEXT) 1061 { 1062 heap_free(lpItem->pszText); 1063 lpItem->pszText = NULL; 1064 } 1065 1066 if (lpItem->callbackMask&HDI_IMAGE) 1067 lpItem->iImage = I_IMAGECALLBACK; 1068 } 1069 1070 static HIMAGELIST 1071 HEADER_CreateDragImage (HEADER_INFO *infoPtr, INT iItem) 1072 { 1073 HEADER_ITEM *lpItem; 1074 HIMAGELIST himl; 1075 HBITMAP hMemory, hOldBitmap; 1076 LRESULT lCDFlags; 1077 RECT rc; 1078 HDC hMemoryDC; 1079 HDC hDeviceDC; 1080 int height, width; 1081 HFONT hFont; 1082 1083 if (iItem >= infoPtr->uNumItem) 1084 return NULL; 1085 1086 if (!infoPtr->bRectsValid) 1087 HEADER_SetItemBounds(infoPtr); 1088 1089 lpItem = &infoPtr->items[iItem]; 1090 width = lpItem->rect.right - lpItem->rect.left; 1091 height = lpItem->rect.bottom - lpItem->rect.top; 1092 1093 hDeviceDC = GetDC(NULL); 1094 hMemoryDC = CreateCompatibleDC(hDeviceDC); 1095 hMemory = CreateCompatibleBitmap(hDeviceDC, width, height); 1096 ReleaseDC(NULL, hDeviceDC); 1097 hOldBitmap = SelectObject(hMemoryDC, hMemory); 1098 SetViewportOrgEx(hMemoryDC, -lpItem->rect.left, -lpItem->rect.top, NULL); 1099 hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject(SYSTEM_FONT); 1100 SelectObject(hMemoryDC, hFont); 1101 1102 GetClientRect(infoPtr->hwndSelf, &rc); 1103 lCDFlags = HEADER_SendCtrlCustomDraw(infoPtr, CDDS_PREPAINT, hMemoryDC, &rc); 1104 HEADER_DrawItem(infoPtr, hMemoryDC, iItem, FALSE, lCDFlags); 1105 if (lCDFlags & CDRF_NOTIFYPOSTPAINT) 1106 HEADER_SendCtrlCustomDraw(infoPtr, CDDS_POSTPAINT, hMemoryDC, &rc); 1107 1108 hMemory = SelectObject(hMemoryDC, hOldBitmap); 1109 DeleteDC(hMemoryDC); 1110 1111 if (hMemory == NULL) /* if anything failed */ 1112 return NULL; 1113 1114 himl = ImageList_Create(width, height, ILC_COLORDDB, 1, 1); 1115 ImageList_Add(himl, hMemory, NULL); 1116 DeleteObject(hMemory); 1117 return himl; 1118 } 1119 1120 static LRESULT 1121 HEADER_SetHotDivider(HEADER_INFO *infoPtr, WPARAM wParam, LPARAM lParam) 1122 { 1123 INT iDivider; 1124 RECT r; 1125 1126 if (wParam) 1127 { 1128 POINT pt; 1129 UINT flags; 1130 pt.x = (INT)(SHORT)LOWORD(lParam); 1131 pt.y = 0; 1132 HEADER_InternalHitTest (infoPtr, &pt, &flags, &iDivider); 1133 1134 if (flags & HHT_TOLEFT) 1135 iDivider = 0; 1136 else if (flags & HHT_NOWHERE || flags & HHT_TORIGHT) 1137 iDivider = infoPtr->uNumItem; 1138 else 1139 { 1140 HEADER_ITEM *lpItem = &infoPtr->items[iDivider]; 1141 if (pt.x > (lpItem->rect.left+lpItem->rect.right)/2) 1142 iDivider = HEADER_NextItem(infoPtr, iDivider); 1143 } 1144 } 1145 else 1146 iDivider = (INT)lParam; 1147 1148 /* Note; wParam==FALSE, lParam==-1 is valid and is used to clear the hot divider */ 1149 if (iDivider<-1 || iDivider>(int)infoPtr->uNumItem) 1150 return iDivider; 1151 1152 if (iDivider != infoPtr->iHotDivider) 1153 { 1154 if (infoPtr->iHotDivider != -1) 1155 { 1156 HEADER_GetHotDividerRect(infoPtr, &r); 1157 InvalidateRect(infoPtr->hwndSelf, &r, FALSE); 1158 } 1159 infoPtr->iHotDivider = iDivider; 1160 if (iDivider != -1) 1161 { 1162 HEADER_GetHotDividerRect(infoPtr, &r); 1163 InvalidateRect(infoPtr->hwndSelf, &r, FALSE); 1164 } 1165 } 1166 return iDivider; 1167 } 1168 1169 static LRESULT 1170 HEADER_DeleteItem (HEADER_INFO *infoPtr, INT iItem) 1171 { 1172 INT iOrder; 1173 UINT i; 1174 1175 TRACE("[iItem=%d]\n", iItem); 1176 1177 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem)) 1178 return FALSE; 1179 1180 for (i = 0; i < infoPtr->uNumItem; i++) 1181 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder); 1182 1183 iOrder = infoPtr->items[iItem].iOrder; 1184 heap_free(infoPtr->items[iItem].pszText); 1185 1186 infoPtr->uNumItem--; 1187 memmove(&infoPtr->items[iItem], &infoPtr->items[iItem + 1], 1188 (infoPtr->uNumItem - iItem) * sizeof(HEADER_ITEM)); 1189 memmove(&infoPtr->order[iOrder], &infoPtr->order[iOrder + 1], 1190 (infoPtr->uNumItem - iOrder) * sizeof(INT)); 1191 infoPtr->items = heap_realloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem); 1192 infoPtr->order = heap_realloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem); 1193 1194 /* Correct the orders */ 1195 for (i = 0; i < infoPtr->uNumItem; i++) 1196 { 1197 if (infoPtr->order[i] > iItem) 1198 infoPtr->order[i]--; 1199 if (i >= iOrder) 1200 infoPtr->items[infoPtr->order[i]].iOrder = i; 1201 } 1202 for (i = 0; i < infoPtr->uNumItem; i++) 1203 TRACE("%d: order=%d, iOrder=%d, ->iOrder=%d\n", i, infoPtr->order[i], infoPtr->items[i].iOrder, infoPtr->items[infoPtr->order[i]].iOrder); 1204 1205 HEADER_SetItemBounds (infoPtr); 1206 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE); 1207 1208 return TRUE; 1209 } 1210 1211 1212 static LRESULT 1213 HEADER_GetImageList (const HEADER_INFO *infoPtr) 1214 { 1215 return (LRESULT)infoPtr->himl; 1216 } 1217 1218 1219 static LRESULT 1220 HEADER_GetItemT (const HEADER_INFO *infoPtr, INT nItem, LPHDITEMW phdi, BOOL bUnicode) 1221 { 1222 HEADER_ITEM *lpItem; 1223 UINT mask; 1224 1225 if (!phdi) 1226 return FALSE; 1227 1228 TRACE("[nItem=%d]\n", nItem); 1229 1230 mask = phdi->mask; 1231 if (mask == 0) 1232 return TRUE; 1233 1234 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem)) 1235 return FALSE; 1236 1237 if (mask & HDI_UNKNOWN_FIELDS) 1238 { 1239 TRACE("mask %x contains unknown fields. Using only comctl32 4.0 fields\n", mask); 1240 mask &= HDI_COMCTL32_4_0_FIELDS; 1241 } 1242 1243 lpItem = &infoPtr->items[nItem]; 1244 HEADER_PrepareCallbackItems(infoPtr, nItem, mask); 1245 1246 if (mask & HDI_BITMAP) 1247 phdi->hbm = lpItem->hbm; 1248 1249 if (mask & HDI_FORMAT) 1250 phdi->fmt = lpItem->fmt; 1251 1252 if (mask & HDI_WIDTH) 1253 phdi->cxy = lpItem->cxy; 1254 1255 if (mask & HDI_LPARAM) 1256 phdi->lParam = lpItem->lParam; 1257 1258 if (mask & HDI_IMAGE) 1259 phdi->iImage = lpItem->iImage; 1260 1261 if (mask & HDI_ORDER) 1262 phdi->iOrder = lpItem->iOrder; 1263 1264 if (mask & HDI_TEXT) 1265 { 1266 if (bUnicode) 1267 Str_GetPtrW (lpItem->pszText, phdi->pszText, phdi->cchTextMax); 1268 else 1269 Str_GetPtrWtoA (lpItem->pszText, (LPSTR)phdi->pszText, phdi->cchTextMax); 1270 } 1271 1272 HEADER_FreeCallbackItems(lpItem); 1273 return TRUE; 1274 } 1275 1276 1277 static inline LRESULT 1278 HEADER_GetItemCount (const HEADER_INFO *infoPtr) 1279 { 1280 return infoPtr->uNumItem; 1281 } 1282 1283 1284 static LRESULT 1285 HEADER_GetItemRect (const HEADER_INFO *infoPtr, INT iItem, LPRECT lpRect) 1286 { 1287 if ((iItem < 0) || (iItem >= (INT)infoPtr->uNumItem)) 1288 return FALSE; 1289 1290 lpRect->left = infoPtr->items[iItem].rect.left; 1291 lpRect->right = infoPtr->items[iItem].rect.right; 1292 lpRect->top = infoPtr->items[iItem].rect.top; 1293 lpRect->bottom = infoPtr->items[iItem].rect.bottom; 1294 1295 return TRUE; 1296 } 1297 1298 1299 static LRESULT 1300 HEADER_GetOrderArray(const HEADER_INFO *infoPtr, INT size, LPINT order) 1301 { 1302 if ((UINT)size <infoPtr->uNumItem) 1303 return FALSE; 1304 1305 memcpy(order, infoPtr->order, infoPtr->uNumItem * sizeof(INT)); 1306 return TRUE; 1307 } 1308 1309 /* Returns index of first duplicate 'value' from [0,to) range, 1310 or -1 if there isn't any */ 1311 static INT has_duplicate(const INT *array, INT to, INT value) 1312 { 1313 INT i; 1314 for(i = 0; i < to; i++) 1315 if (array[i] == value) return i; 1316 return -1; 1317 } 1318 1319 /* returns next available value from [0,max] not to duplicate in [0,to) */ 1320 static INT get_nextvalue(const INT *array, INT to, INT max) 1321 { 1322 INT i; 1323 for(i = 0; i < max; i++) 1324 if (has_duplicate(array, to, i) == -1) return i; 1325 return 0; 1326 } 1327 1328 static LRESULT 1329 HEADER_SetOrderArray(HEADER_INFO *infoPtr, INT size, const INT *order) 1330 { 1331 HEADER_ITEM *lpItem; 1332 INT i; 1333 1334 if ((UINT)size != infoPtr->uNumItem) 1335 return FALSE; 1336 1337 if (TRACE_ON(header)) 1338 { 1339 TRACE("count=%d, order array={", size); 1340 for (i = 0; i < size; i++) 1341 TRACE("%d%c", order[i], i != size-1 ? ',' : '}'); 1342 TRACE("\n"); 1343 } 1344 1345 for (i=0; i<size; i++) 1346 { 1347 if (order[i] >= size || order[i] < 0) 1348 /* on invalid index get next available */ 1349 /* FIXME: if i==0 array item is out of range behaviour is 1350 different, see tests */ 1351 infoPtr->order[i] = get_nextvalue(infoPtr->order, i, size); 1352 else 1353 { 1354 INT j, dup; 1355 1356 infoPtr->order[i] = order[i]; 1357 j = i; 1358 /* remove duplicates */ 1359 while ((dup = has_duplicate(infoPtr->order, j, order[j])) != -1) 1360 { 1361 INT next; 1362 1363 next = get_nextvalue(infoPtr->order, j, size); 1364 infoPtr->order[dup] = next; 1365 j--; 1366 } 1367 } 1368 } 1369 /* sync with item data */ 1370 for (i=0; i<size; i++) 1371 { 1372 lpItem = &infoPtr->items[infoPtr->order[i]]; 1373 lpItem->iOrder = i; 1374 } 1375 HEADER_SetItemBounds(infoPtr); 1376 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE); 1377 return TRUE; 1378 } 1379 1380 static inline LRESULT 1381 HEADER_GetUnicodeFormat (const HEADER_INFO *infoPtr) 1382 { 1383 return (infoPtr->nNotifyFormat == NFR_UNICODE); 1384 } 1385 1386 1387 static LRESULT 1388 HEADER_HitTest (const HEADER_INFO *infoPtr, LPHDHITTESTINFO phti) 1389 { 1390 UINT outside = HHT_NOWHERE | HHT_ABOVE | HHT_BELOW | HHT_TOLEFT | HHT_TORIGHT; 1391 1392 HEADER_InternalHitTest (infoPtr, &phti->pt, &phti->flags, &phti->iItem); 1393 1394 if (phti->flags & outside) 1395 return phti->iItem = -1; 1396 else 1397 return phti->iItem; 1398 } 1399 1400 1401 static LRESULT 1402 HEADER_InsertItemT (HEADER_INFO *infoPtr, INT nItem, const HDITEMW *phdi, BOOL bUnicode) 1403 { 1404 HEADER_ITEM *lpItem; 1405 INT iOrder; 1406 UINT i; 1407 UINT copyMask; 1408 1409 if ((phdi == NULL) || (nItem < 0) || (phdi->mask == 0)) 1410 return -1; 1411 1412 if (nItem > infoPtr->uNumItem) 1413 nItem = infoPtr->uNumItem; 1414 1415 iOrder = (phdi->mask & HDI_ORDER) ? phdi->iOrder : nItem; 1416 if (iOrder < 0) 1417 iOrder = 0; 1418 else if (infoPtr->uNumItem < iOrder) 1419 iOrder = infoPtr->uNumItem; 1420 1421 infoPtr->uNumItem++; 1422 infoPtr->items = heap_realloc(infoPtr->items, sizeof(HEADER_ITEM) * infoPtr->uNumItem); 1423 infoPtr->order = heap_realloc(infoPtr->order, sizeof(INT) * infoPtr->uNumItem); 1424 1425 /* make space for the new item */ 1426 memmove(&infoPtr->items[nItem + 1], &infoPtr->items[nItem], 1427 (infoPtr->uNumItem - nItem - 1) * sizeof(HEADER_ITEM)); 1428 memmove(&infoPtr->order[iOrder + 1], &infoPtr->order[iOrder], 1429 (infoPtr->uNumItem - iOrder - 1) * sizeof(INT)); 1430 1431 /* update the order array */ 1432 infoPtr->order[iOrder] = nItem; 1433 for (i = 0; i < infoPtr->uNumItem; i++) 1434 { 1435 if (i != iOrder && infoPtr->order[i] >= nItem) 1436 infoPtr->order[i]++; 1437 infoPtr->items[infoPtr->order[i]].iOrder = i; 1438 } 1439 1440 lpItem = &infoPtr->items[nItem]; 1441 ZeroMemory(lpItem, sizeof(HEADER_ITEM)); 1442 /* cxy, fmt and lParam are copied even if not in the HDITEM mask */ 1443 copyMask = phdi->mask | HDI_WIDTH | HDI_FORMAT | HDI_LPARAM; 1444 HEADER_StoreHDItemInHeader(lpItem, copyMask, phdi, bUnicode); 1445 lpItem->iOrder = iOrder; 1446 1447 /* set automatically some format bits */ 1448 if (phdi->mask & HDI_TEXT) 1449 lpItem->fmt |= HDF_STRING; 1450 else 1451 lpItem->fmt &= ~HDF_STRING; 1452 1453 if (lpItem->hbm != NULL) 1454 lpItem->fmt |= HDF_BITMAP; 1455 else 1456 lpItem->fmt &= ~HDF_BITMAP; 1457 1458 if (phdi->mask & HDI_IMAGE) 1459 lpItem->fmt |= HDF_IMAGE; 1460 1461 HEADER_SetItemBounds (infoPtr); 1462 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE); 1463 1464 return nItem; 1465 } 1466 1467 1468 static LRESULT 1469 HEADER_Layout (HEADER_INFO *infoPtr, LPHDLAYOUT lpLayout) 1470 { 1471 lpLayout->pwpos->hwnd = infoPtr->hwndSelf; 1472 lpLayout->pwpos->hwndInsertAfter = 0; 1473 lpLayout->pwpos->x = lpLayout->prc->left; 1474 lpLayout->pwpos->y = lpLayout->prc->top; 1475 lpLayout->pwpos->cx = lpLayout->prc->right - lpLayout->prc->left; 1476 if (infoPtr->dwStyle & HDS_HIDDEN) 1477 lpLayout->pwpos->cy = 0; 1478 else { 1479 lpLayout->pwpos->cy = infoPtr->nHeight; 1480 lpLayout->prc->top += infoPtr->nHeight; 1481 } 1482 lpLayout->pwpos->flags = SWP_NOZORDER; 1483 1484 TRACE("Layout x=%d y=%d cx=%d cy=%d\n", 1485 lpLayout->pwpos->x, lpLayout->pwpos->y, 1486 lpLayout->pwpos->cx, lpLayout->pwpos->cy); 1487 1488 infoPtr->bRectsValid = FALSE; 1489 1490 return TRUE; 1491 } 1492 1493 1494 static LRESULT 1495 HEADER_SetImageList (HEADER_INFO *infoPtr, HIMAGELIST himl) 1496 { 1497 HIMAGELIST himlOld; 1498 1499 TRACE("(himl %p)\n", himl); 1500 himlOld = infoPtr->himl; 1501 infoPtr->himl = himl; 1502 1503 /* FIXME: Refresh needed??? */ 1504 1505 return (LRESULT)himlOld; 1506 } 1507 1508 1509 static LRESULT 1510 HEADER_GetBitmapMargin(const HEADER_INFO *infoPtr) 1511 { 1512 return infoPtr->iMargin; 1513 } 1514 1515 static LRESULT 1516 HEADER_SetBitmapMargin(HEADER_INFO *infoPtr, INT iMargin) 1517 { 1518 INT oldMargin = infoPtr->iMargin; 1519 1520 infoPtr->iMargin = iMargin; 1521 1522 return oldMargin; 1523 } 1524 1525 static LRESULT 1526 HEADER_SetItemT (HEADER_INFO *infoPtr, INT nItem, const HDITEMW *phdi, BOOL bUnicode) 1527 { 1528 HEADER_ITEM *lpItem; 1529 HDITEMW hdNotify; 1530 void *pvScratch; 1531 1532 if (phdi == NULL) 1533 return FALSE; 1534 if ((nItem < 0) || (nItem >= (INT)infoPtr->uNumItem)) 1535 return FALSE; 1536 1537 TRACE("[nItem=%d]\n", nItem); 1538 1539 HEADER_CopyHDItemForNotify(infoPtr, &hdNotify, phdi, bUnicode, &pvScratch); 1540 if (HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMCHANGINGW, nItem, &hdNotify)) 1541 { 1542 heap_free(pvScratch); 1543 return FALSE; 1544 } 1545 1546 lpItem = &infoPtr->items[nItem]; 1547 HEADER_StoreHDItemInHeader(lpItem, phdi->mask, phdi, bUnicode); 1548 1549 if (phdi->mask & HDI_ORDER) 1550 if (phdi->iOrder >= 0 && phdi->iOrder < infoPtr->uNumItem) 1551 HEADER_ChangeItemOrder(infoPtr, nItem, phdi->iOrder); 1552 1553 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMCHANGEDW, nItem, &hdNotify); 1554 1555 HEADER_SetItemBounds (infoPtr); 1556 1557 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE); 1558 1559 heap_free(pvScratch); 1560 return TRUE; 1561 } 1562 1563 static inline LRESULT 1564 HEADER_SetUnicodeFormat (HEADER_INFO *infoPtr, WPARAM wParam) 1565 { 1566 BOOL bTemp = (infoPtr->nNotifyFormat == NFR_UNICODE); 1567 1568 infoPtr->nNotifyFormat = ((BOOL)wParam ? NFR_UNICODE : NFR_ANSI); 1569 1570 return bTemp; 1571 } 1572 1573 1574 static LRESULT 1575 HEADER_Create (HWND hwnd, const CREATESTRUCTW *lpcs) 1576 { 1577 HEADER_INFO *infoPtr; 1578 TEXTMETRICW tm; 1579 HFONT hOldFont; 1580 HDC hdc; 1581 1582 infoPtr = heap_alloc_zero (sizeof(*infoPtr)); 1583 SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr); 1584 1585 infoPtr->hwndSelf = hwnd; 1586 infoPtr->hwndNotify = lpcs->hwndParent; 1587 infoPtr->uNumItem = 0; 1588 infoPtr->hFont = 0; 1589 infoPtr->items = 0; 1590 infoPtr->order = 0; 1591 infoPtr->bRectsValid = FALSE; 1592 infoPtr->hcurArrow = LoadCursorW (0, (LPWSTR)IDC_ARROW); 1593 infoPtr->hcurDivider = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDER)); 1594 infoPtr->hcurDivopen = LoadCursorW (COMCTL32_hModule, MAKEINTRESOURCEW(IDC_DIVIDEROPEN)); 1595 infoPtr->bPressed = FALSE; 1596 infoPtr->bTracking = FALSE; 1597 infoPtr->dwStyle = lpcs->style; 1598 infoPtr->iMoveItem = 0; 1599 infoPtr->himl = 0; 1600 infoPtr->iHotItem = -1; 1601 infoPtr->iHotDivider = -1; 1602 infoPtr->iMargin = 3*GetSystemMetrics(SM_CXEDGE); 1603 infoPtr->nNotifyFormat = 1604 SendMessageW (infoPtr->hwndNotify, WM_NOTIFYFORMAT, (WPARAM)hwnd, NF_QUERY); 1605 infoPtr->filter_change_timeout = 1000; 1606 1607 hdc = GetDC (0); 1608 hOldFont = SelectObject (hdc, GetStockObject (SYSTEM_FONT)); 1609 GetTextMetricsW (hdc, &tm); 1610 infoPtr->nHeight = tm.tmHeight + VERT_BORDER; 1611 SelectObject (hdc, hOldFont); 1612 ReleaseDC (0, hdc); 1613 1614 OpenThemeData(hwnd, themeClass); 1615 1616 return 0; 1617 } 1618 1619 1620 static LRESULT 1621 HEADER_Destroy (HEADER_INFO *infoPtr) 1622 { 1623 HTHEME theme = GetWindowTheme(infoPtr->hwndSelf); 1624 CloseThemeData(theme); 1625 return 0; 1626 } 1627 1628 static LRESULT 1629 HEADER_NCDestroy (HEADER_INFO *infoPtr) 1630 { 1631 HEADER_ITEM *lpItem; 1632 INT nItem; 1633 1634 if (infoPtr->items) { 1635 lpItem = infoPtr->items; 1636 for (nItem = 0; nItem < infoPtr->uNumItem; nItem++, lpItem++) 1637 heap_free(lpItem->pszText); 1638 heap_free(infoPtr->items); 1639 } 1640 1641 heap_free(infoPtr->order); 1642 1643 SetWindowLongPtrW (infoPtr->hwndSelf, 0, 0); 1644 heap_free(infoPtr); 1645 1646 return 0; 1647 } 1648 1649 1650 static inline LRESULT 1651 HEADER_GetFont (const HEADER_INFO *infoPtr) 1652 { 1653 return (LRESULT)infoPtr->hFont; 1654 } 1655 1656 1657 static BOOL 1658 HEADER_IsDragDistance(const HEADER_INFO *infoPtr, const POINT *pt) 1659 { 1660 /* Windows allows for a mouse movement before starting the drag. We use the 1661 * SM_CXDOUBLECLICK/SM_CYDOUBLECLICK as that distance. 1662 */ 1663 return (abs(infoPtr->ptLButtonDown.x - pt->x)>GetSystemMetrics(SM_CXDOUBLECLK) || 1664 abs(infoPtr->ptLButtonDown.y - pt->y)>GetSystemMetrics(SM_CYDOUBLECLK)); 1665 } 1666 1667 static LRESULT 1668 HEADER_LButtonDblClk (const HEADER_INFO *infoPtr, INT x, INT y) 1669 { 1670 POINT pt; 1671 UINT flags; 1672 INT nItem; 1673 1674 pt.x = x; 1675 pt.y = y; 1676 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem); 1677 1678 if ((infoPtr->dwStyle & HDS_BUTTONS) && (flags == HHT_ONHEADER)) 1679 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMDBLCLICKW, nItem, NULL); 1680 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN)) 1681 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_DIVIDERDBLCLICKW, nItem, NULL); 1682 1683 return 0; 1684 } 1685 1686 1687 static LRESULT 1688 HEADER_LButtonDown (HEADER_INFO *infoPtr, INT x, INT y) 1689 { 1690 POINT pt; 1691 UINT flags; 1692 INT nItem; 1693 HDC hdc; 1694 1695 pt.x = x; 1696 pt.y = y; 1697 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem); 1698 1699 if ((infoPtr->dwStyle & HDS_BUTTONS) && (flags == HHT_ONHEADER)) { 1700 SetCapture (infoPtr->hwndSelf); 1701 infoPtr->bCaptured = TRUE; 1702 infoPtr->bPressed = TRUE; 1703 infoPtr->bDragging = FALSE; 1704 infoPtr->iMoveItem = nItem; 1705 infoPtr->ptLButtonDown = pt; 1706 1707 infoPtr->items[nItem].bDown = TRUE; 1708 1709 /* Send WM_CUSTOMDRAW */ 1710 hdc = GetDC (infoPtr->hwndSelf); 1711 HEADER_RefreshItem (infoPtr, nItem); 1712 ReleaseDC (infoPtr->hwndSelf, hdc); 1713 1714 TRACE("Pressed item %d.\n", nItem); 1715 } 1716 else if ((flags == HHT_ONDIVIDER) || (flags == HHT_ONDIVOPEN)) { 1717 INT iCurrWidth = infoPtr->items[nItem].cxy; 1718 if (!HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_BEGINTRACKW, nItem, HDI_WIDTH, iCurrWidth)) 1719 { 1720 SetCapture (infoPtr->hwndSelf); 1721 infoPtr->bCaptured = TRUE; 1722 infoPtr->bTracking = TRUE; 1723 infoPtr->iMoveItem = nItem; 1724 infoPtr->xTrackOffset = infoPtr->items[nItem].rect.right - pt.x; 1725 1726 if (!(infoPtr->dwStyle & HDS_FULLDRAG)) { 1727 infoPtr->xOldTrack = infoPtr->items[nItem].rect.right; 1728 hdc = GetDC (infoPtr->hwndSelf); 1729 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack); 1730 ReleaseDC (infoPtr->hwndSelf, hdc); 1731 } 1732 1733 TRACE("Begin tracking item %d.\n", nItem); 1734 } 1735 } 1736 1737 return 0; 1738 } 1739 1740 1741 static LRESULT 1742 HEADER_LButtonUp (HEADER_INFO *infoPtr, INT x, INT y) 1743 { 1744 POINT pt; 1745 UINT flags; 1746 INT nItem; 1747 HDC hdc; 1748 1749 pt.x = x; 1750 pt.y = y; 1751 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem); 1752 1753 if (infoPtr->bPressed) { 1754 1755 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE; 1756 1757 if (infoPtr->bDragging) 1758 { 1759 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem]; 1760 INT iNewOrder; 1761 1762 ImageList_DragShowNolock(FALSE); 1763 ImageList_EndDrag(); 1764 1765 if (infoPtr->iHotDivider == -1) 1766 iNewOrder = -1; 1767 else if (infoPtr->iHotDivider == infoPtr->uNumItem) 1768 iNewOrder = infoPtr->uNumItem-1; 1769 else 1770 { 1771 iNewOrder = HEADER_IndexToOrder(infoPtr, infoPtr->iHotDivider); 1772 if (iNewOrder > lpItem->iOrder) 1773 iNewOrder--; 1774 } 1775 1776 if (iNewOrder != -1 && 1777 !HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ENDDRAG, infoPtr->iMoveItem, HDI_ORDER, iNewOrder)) 1778 { 1779 HEADER_ChangeItemOrder(infoPtr, infoPtr->iMoveItem, iNewOrder); 1780 infoPtr->bRectsValid = FALSE; 1781 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE); 1782 } 1783 else 1784 InvalidateRect(infoPtr->hwndSelf, &infoPtr->items[infoPtr->iMoveItem].rect, FALSE); 1785 1786 infoPtr->bDragging = FALSE; 1787 HEADER_SetHotDivider(infoPtr, FALSE, -1); 1788 } 1789 else 1790 { 1791 hdc = GetDC (infoPtr->hwndSelf); 1792 HEADER_RefreshItem (infoPtr, infoPtr->iMoveItem); 1793 ReleaseDC (infoPtr->hwndSelf, hdc); 1794 1795 if (!(infoPtr->dwStyle & HDS_DRAGDROP) || !HEADER_IsDragDistance(infoPtr, &pt)) 1796 HEADER_SendNotifyWithHDItemT(infoPtr, HDN_ITEMCLICKW, infoPtr->iMoveItem, NULL); 1797 } 1798 1799 TRACE("Released item %d.\n", infoPtr->iMoveItem); 1800 infoPtr->bPressed = FALSE; 1801 } 1802 else if (infoPtr->bTracking) { 1803 INT iNewWidth = pt.x - infoPtr->items[infoPtr->iMoveItem].rect.left + infoPtr->xTrackOffset; 1804 if (iNewWidth < 0) 1805 iNewWidth = 0; 1806 TRACE("End tracking item %d.\n", infoPtr->iMoveItem); 1807 infoPtr->bTracking = FALSE; 1808 1809 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ENDTRACKW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth); 1810 1811 if (!(infoPtr->dwStyle & HDS_FULLDRAG)) { 1812 hdc = GetDC (infoPtr->hwndSelf); 1813 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack); 1814 ReleaseDC (infoPtr->hwndSelf, hdc); 1815 } 1816 1817 if (!HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth)) 1818 { 1819 infoPtr->items[infoPtr->iMoveItem].cxy = iNewWidth; 1820 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, iNewWidth); 1821 } 1822 1823 HEADER_SetItemBounds (infoPtr); 1824 InvalidateRect(infoPtr->hwndSelf, NULL, TRUE); 1825 } 1826 1827 if (infoPtr->bCaptured) { 1828 infoPtr->bCaptured = FALSE; 1829 ReleaseCapture (); 1830 HEADER_SendSimpleNotify (infoPtr, NM_RELEASEDCAPTURE); 1831 } 1832 1833 return 0; 1834 } 1835 1836 1837 static LRESULT 1838 HEADER_NotifyFormat (HEADER_INFO *infoPtr, WPARAM wParam, LPARAM lParam) 1839 { 1840 switch (lParam) 1841 { 1842 case NF_QUERY: 1843 return infoPtr->nNotifyFormat; 1844 1845 case NF_REQUERY: 1846 infoPtr->nNotifyFormat = 1847 SendMessageW ((HWND)wParam, WM_NOTIFYFORMAT, 1848 (WPARAM)infoPtr->hwndSelf, NF_QUERY); 1849 return infoPtr->nNotifyFormat; 1850 } 1851 1852 return 0; 1853 } 1854 1855 static LRESULT 1856 HEADER_MouseLeave (HEADER_INFO *infoPtr) 1857 { 1858 /* Reset hot-tracked item when mouse leaves control. */ 1859 INT oldHotItem = infoPtr->iHotItem; 1860 HDC hdc = GetDC (infoPtr->hwndSelf); 1861 1862 infoPtr->iHotItem = -1; 1863 if (oldHotItem != -1) HEADER_RefreshItem (infoPtr, oldHotItem); 1864 ReleaseDC (infoPtr->hwndSelf, hdc); 1865 1866 return 0; 1867 } 1868 1869 1870 static LRESULT 1871 HEADER_MouseMove (HEADER_INFO *infoPtr, LPARAM lParam) 1872 { 1873 POINT pt; 1874 UINT flags; 1875 INT nItem, nWidth; 1876 HDC hdc; 1877 /* With theming, hottracking is always enabled */ 1878 BOOL hotTrackEnabled = 1879 ((infoPtr->dwStyle & HDS_BUTTONS) && (infoPtr->dwStyle & HDS_HOTTRACK)) 1880 || (GetWindowTheme (infoPtr->hwndSelf) != NULL); 1881 INT oldHotItem = infoPtr->iHotItem; 1882 1883 pt.x = (INT)(SHORT)LOWORD(lParam); 1884 pt.y = (INT)(SHORT)HIWORD(lParam); 1885 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem); 1886 1887 if (hotTrackEnabled) { 1888 if (flags & (HHT_ONHEADER | HHT_ONDIVIDER | HHT_ONDIVOPEN)) 1889 infoPtr->iHotItem = nItem; 1890 else 1891 infoPtr->iHotItem = -1; 1892 } 1893 1894 if (infoPtr->bCaptured) { 1895 /* check if we should drag the header */ 1896 if (infoPtr->bPressed && !infoPtr->bDragging && (infoPtr->dwStyle & HDS_DRAGDROP) 1897 && HEADER_IsDragDistance(infoPtr, &pt)) 1898 { 1899 if (!HEADER_SendNotifyWithHDItemT(infoPtr, HDN_BEGINDRAG, infoPtr->iMoveItem, NULL)) 1900 { 1901 HIMAGELIST hDragItem = HEADER_CreateDragImage(infoPtr, infoPtr->iMoveItem); 1902 if (hDragItem != NULL) 1903 { 1904 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem]; 1905 TRACE("Starting item drag\n"); 1906 ImageList_BeginDrag(hDragItem, 0, pt.x - lpItem->rect.left, 0); 1907 ImageList_DragShowNolock(TRUE); 1908 ImageList_Destroy(hDragItem); 1909 infoPtr->bDragging = TRUE; 1910 } 1911 } 1912 } 1913 1914 if (infoPtr->bDragging) 1915 { 1916 POINT drag; 1917 drag.x = pt.x; 1918 drag.y = 0; 1919 ClientToScreen(infoPtr->hwndSelf, &drag); 1920 ImageList_DragMove(drag.x, drag.y); 1921 HEADER_SetHotDivider(infoPtr, TRUE, lParam); 1922 } 1923 1924 if (infoPtr->bPressed && !infoPtr->bDragging) { 1925 BOOL oldState = infoPtr->items[infoPtr->iMoveItem].bDown; 1926 if ((nItem == infoPtr->iMoveItem) && (flags == HHT_ONHEADER)) 1927 infoPtr->items[infoPtr->iMoveItem].bDown = TRUE; 1928 else 1929 infoPtr->items[infoPtr->iMoveItem].bDown = FALSE; 1930 if (oldState != infoPtr->items[infoPtr->iMoveItem].bDown) { 1931 hdc = GetDC (infoPtr->hwndSelf); 1932 HEADER_RefreshItem (infoPtr, infoPtr->iMoveItem); 1933 ReleaseDC (infoPtr->hwndSelf, hdc); 1934 } 1935 1936 TRACE("Moving pressed item %d.\n", infoPtr->iMoveItem); 1937 } 1938 else if (infoPtr->bTracking) { 1939 if (infoPtr->dwStyle & HDS_FULLDRAG) { 1940 HEADER_ITEM *lpItem = &infoPtr->items[infoPtr->iMoveItem]; 1941 nWidth = pt.x - lpItem->rect.left + infoPtr->xTrackOffset; 1942 if (!HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGINGW, infoPtr->iMoveItem, HDI_WIDTH, nWidth)) 1943 { 1944 INT nOldWidth = lpItem->rect.right - lpItem->rect.left; 1945 RECT rcClient; 1946 RECT rcScroll; 1947 1948 if (nWidth < 0) nWidth = 0; 1949 infoPtr->items[infoPtr->iMoveItem].cxy = nWidth; 1950 #ifdef __REACTOS__ 1951 InvalidateRect(infoPtr->hwndSelf, &lpItem->rect, FALSE); 1952 #endif 1953 HEADER_SetItemBounds(infoPtr); 1954 1955 GetClientRect(infoPtr->hwndSelf, &rcClient); 1956 rcScroll = rcClient; 1957 rcScroll.left = lpItem->rect.left + nOldWidth; 1958 #ifdef __REACTOS__ 1959 ScrollWindowEx(infoPtr->hwndSelf, nWidth - nOldWidth, 0, &rcScroll, &rcClient, 1960 NULL, NULL, SW_INVALIDATE); 1961 #else 1962 ScrollWindowEx(infoPtr->hwndSelf, nWidth - nOldWidth, 0, &rcScroll, &rcClient, NULL, NULL, 0); 1963 InvalidateRect(infoPtr->hwndSelf, &lpItem->rect, FALSE); 1964 #endif 1965 UpdateWindow(infoPtr->hwndSelf); 1966 1967 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_ITEMCHANGEDW, infoPtr->iMoveItem, HDI_WIDTH, nWidth); 1968 } 1969 } 1970 else { 1971 INT iTrackWidth; 1972 hdc = GetDC (infoPtr->hwndSelf); 1973 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack); 1974 infoPtr->xOldTrack = pt.x + infoPtr->xTrackOffset; 1975 if (infoPtr->xOldTrack < infoPtr->items[infoPtr->iMoveItem].rect.left) 1976 infoPtr->xOldTrack = infoPtr->items[infoPtr->iMoveItem].rect.left; 1977 HEADER_DrawTrackLine (infoPtr, hdc, infoPtr->xOldTrack); 1978 ReleaseDC (infoPtr->hwndSelf, hdc); 1979 iTrackWidth = infoPtr->xOldTrack - infoPtr->items[infoPtr->iMoveItem].rect.left; 1980 /* FIXME: should stop tracking if HDN_TRACK returns TRUE */ 1981 HEADER_SendNotifyWithIntFieldT(infoPtr, HDN_TRACKW, infoPtr->iMoveItem, HDI_WIDTH, iTrackWidth); 1982 } 1983 1984 TRACE("Tracking item %d.\n", infoPtr->iMoveItem); 1985 } 1986 } 1987 1988 if (hotTrackEnabled) { 1989 TRACKMOUSEEVENT tme; 1990 if (oldHotItem != infoPtr->iHotItem && !infoPtr->bDragging) { 1991 hdc = GetDC (infoPtr->hwndSelf); 1992 if (oldHotItem != -1) HEADER_RefreshItem (infoPtr, oldHotItem); 1993 if (infoPtr->iHotItem != -1) HEADER_RefreshItem (infoPtr, infoPtr->iHotItem); 1994 ReleaseDC (infoPtr->hwndSelf, hdc); 1995 } 1996 tme.cbSize = sizeof( tme ); 1997 tme.dwFlags = TME_LEAVE; 1998 tme.hwndTrack = infoPtr->hwndSelf; 1999 TrackMouseEvent( &tme ); 2000 } 2001 2002 return 0; 2003 } 2004 2005 2006 static LRESULT 2007 HEADER_Paint (HEADER_INFO *infoPtr, HDC hdcParam) 2008 { 2009 HDC hdc; 2010 PAINTSTRUCT ps; 2011 2012 hdc = hdcParam==0 ? BeginPaint (infoPtr->hwndSelf, &ps) : hdcParam; 2013 HEADER_Refresh (infoPtr, hdc); 2014 if(!hdcParam) 2015 EndPaint (infoPtr->hwndSelf, &ps); 2016 return 0; 2017 } 2018 2019 2020 static LRESULT 2021 HEADER_RButtonUp (HEADER_INFO *infoPtr, INT x, INT y) 2022 { 2023 BOOL bRet; 2024 POINT pt; 2025 2026 pt.x = x; 2027 pt.y = y; 2028 2029 /* Send a Notify message */ 2030 bRet = HEADER_SendSimpleNotify (infoPtr, NM_RCLICK); 2031 2032 /* Change to screen coordinate for WM_CONTEXTMENU */ 2033 ClientToScreen(infoPtr->hwndSelf, &pt); 2034 2035 /* Send a WM_CONTEXTMENU message in response to the RBUTTONUP */ 2036 SendMessageW( infoPtr->hwndSelf, WM_CONTEXTMENU, (WPARAM) infoPtr->hwndSelf, MAKELPARAM(pt.x, pt.y)); 2037 2038 return bRet; 2039 } 2040 2041 2042 static LRESULT 2043 HEADER_SetCursor (HEADER_INFO *infoPtr, LPARAM lParam) 2044 { 2045 POINT pt; 2046 UINT flags; 2047 INT nItem; 2048 2049 TRACE("code=0x%X id=0x%X\n", LOWORD(lParam), HIWORD(lParam)); 2050 2051 GetCursorPos (&pt); 2052 ScreenToClient (infoPtr->hwndSelf, &pt); 2053 2054 HEADER_InternalHitTest (infoPtr, &pt, &flags, &nItem); 2055 2056 if (flags == HHT_ONDIVIDER) 2057 SetCursor (infoPtr->hcurDivider); 2058 else if (flags == HHT_ONDIVOPEN) 2059 SetCursor (infoPtr->hcurDivopen); 2060 else 2061 SetCursor (infoPtr->hcurArrow); 2062 2063 return 0; 2064 } 2065 2066 2067 static LRESULT 2068 HEADER_SetFont (HEADER_INFO *infoPtr, HFONT hFont, WORD Redraw) 2069 { 2070 TEXTMETRICW tm; 2071 HFONT hOldFont; 2072 HDC hdc; 2073 2074 infoPtr->hFont = hFont; 2075 2076 hdc = GetDC (0); 2077 hOldFont = SelectObject (hdc, infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT)); 2078 GetTextMetricsW (hdc, &tm); 2079 infoPtr->nHeight = tm.tmHeight + VERT_BORDER; 2080 SelectObject (hdc, hOldFont); 2081 ReleaseDC (0, hdc); 2082 2083 infoPtr->bRectsValid = FALSE; 2084 2085 if (Redraw) { 2086 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE); 2087 } 2088 2089 return 0; 2090 } 2091 2092 static LRESULT HEADER_SetRedraw(HEADER_INFO *infoPtr, WPARAM wParam, LPARAM lParam) 2093 { 2094 /* ignoring the InvalidateRect calls is handled by user32. But some apps expect 2095 * that we invalidate the header and this has to be done manually */ 2096 LRESULT ret; 2097 2098 ret = DefWindowProcW(infoPtr->hwndSelf, WM_SETREDRAW, wParam, lParam); 2099 if (wParam) 2100 InvalidateRect(infoPtr->hwndSelf, NULL, TRUE); 2101 return ret; 2102 } 2103 2104 static INT HEADER_StyleChanged(HEADER_INFO *infoPtr, WPARAM wStyleType, 2105 const STYLESTRUCT *lpss) 2106 { 2107 TRACE("(styletype=%lx, styleOld=0x%08x, styleNew=0x%08x)\n", 2108 wStyleType, lpss->styleOld, lpss->styleNew); 2109 2110 if (wStyleType != GWL_STYLE) return 0; 2111 2112 infoPtr->dwStyle = lpss->styleNew; 2113 2114 return 0; 2115 } 2116 2117 /* Update the theme handle after a theme change */ 2118 static LRESULT HEADER_ThemeChanged(const HEADER_INFO *infoPtr) 2119 { 2120 HTHEME theme = GetWindowTheme(infoPtr->hwndSelf); 2121 CloseThemeData(theme); 2122 OpenThemeData(infoPtr->hwndSelf, themeClass); 2123 InvalidateRect(infoPtr->hwndSelf, NULL, FALSE); 2124 return 0; 2125 } 2126 2127 static INT HEADER_SetFilterChangeTimeout(HEADER_INFO *infoPtr, INT timeout) 2128 { 2129 INT old_timeout = infoPtr->filter_change_timeout; 2130 2131 if (timeout != 0) 2132 infoPtr->filter_change_timeout = timeout; 2133 return old_timeout; 2134 } 2135 2136 static LRESULT WINAPI 2137 HEADER_WindowProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) 2138 { 2139 HEADER_INFO *infoPtr = (HEADER_INFO *)GetWindowLongPtrW(hwnd, 0); 2140 2141 TRACE("hwnd=%p msg=%x wparam=%lx lParam=%lx\n", hwnd, msg, wParam, lParam); 2142 if (!infoPtr && (msg != WM_CREATE)) 2143 return DefWindowProcW (hwnd, msg, wParam, lParam); 2144 switch (msg) { 2145 /* case HDM_CLEARFILTER: */ 2146 2147 case HDM_CREATEDRAGIMAGE: 2148 return (LRESULT)HEADER_CreateDragImage (infoPtr, (INT)wParam); 2149 2150 case HDM_DELETEITEM: 2151 return HEADER_DeleteItem (infoPtr, (INT)wParam); 2152 2153 /* case HDM_EDITFILTER: */ 2154 2155 case HDM_GETBITMAPMARGIN: 2156 return HEADER_GetBitmapMargin(infoPtr); 2157 2158 case HDM_GETIMAGELIST: 2159 return HEADER_GetImageList (infoPtr); 2160 2161 case HDM_GETITEMA: 2162 case HDM_GETITEMW: 2163 return HEADER_GetItemT (infoPtr, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_GETITEMW); 2164 2165 case HDM_GETITEMCOUNT: 2166 return HEADER_GetItemCount (infoPtr); 2167 2168 case HDM_GETITEMRECT: 2169 return HEADER_GetItemRect (infoPtr, (INT)wParam, (LPRECT)lParam); 2170 2171 case HDM_GETORDERARRAY: 2172 return HEADER_GetOrderArray(infoPtr, (INT)wParam, (LPINT)lParam); 2173 2174 case HDM_GETUNICODEFORMAT: 2175 return HEADER_GetUnicodeFormat (infoPtr); 2176 2177 case HDM_HITTEST: 2178 return HEADER_HitTest (infoPtr, (LPHDHITTESTINFO)lParam); 2179 2180 case HDM_INSERTITEMA: 2181 case HDM_INSERTITEMW: 2182 return HEADER_InsertItemT (infoPtr, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_INSERTITEMW); 2183 2184 case HDM_LAYOUT: 2185 return HEADER_Layout (infoPtr, (LPHDLAYOUT)lParam); 2186 2187 case HDM_ORDERTOINDEX: 2188 return HEADER_OrderToIndex(infoPtr, (INT)wParam); 2189 2190 case HDM_SETBITMAPMARGIN: 2191 return HEADER_SetBitmapMargin(infoPtr, (INT)wParam); 2192 2193 case HDM_SETFILTERCHANGETIMEOUT: 2194 return HEADER_SetFilterChangeTimeout(infoPtr, (INT)lParam); 2195 2196 case HDM_SETHOTDIVIDER: 2197 return HEADER_SetHotDivider(infoPtr, wParam, lParam); 2198 2199 case HDM_SETIMAGELIST: 2200 return HEADER_SetImageList (infoPtr, (HIMAGELIST)lParam); 2201 2202 case HDM_SETITEMA: 2203 case HDM_SETITEMW: 2204 return HEADER_SetItemT (infoPtr, (INT)wParam, (LPHDITEMW)lParam, msg == HDM_SETITEMW); 2205 2206 case HDM_SETORDERARRAY: 2207 return HEADER_SetOrderArray(infoPtr, (INT)wParam, (LPINT)lParam); 2208 2209 case HDM_SETUNICODEFORMAT: 2210 return HEADER_SetUnicodeFormat (infoPtr, wParam); 2211 2212 case WM_CREATE: 2213 return HEADER_Create (hwnd, (LPCREATESTRUCTW)lParam); 2214 2215 case WM_DESTROY: 2216 return HEADER_Destroy (infoPtr); 2217 2218 case WM_NCDESTROY: 2219 return HEADER_NCDestroy (infoPtr); 2220 2221 case WM_ERASEBKGND: 2222 return 1; 2223 2224 case WM_GETDLGCODE: 2225 return DLGC_WANTTAB | DLGC_WANTARROWS; 2226 2227 case WM_GETFONT: 2228 return HEADER_GetFont (infoPtr); 2229 2230 case WM_LBUTTONDBLCLK: 2231 return HEADER_LButtonDblClk (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam)); 2232 2233 case WM_LBUTTONDOWN: 2234 return HEADER_LButtonDown (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam)); 2235 2236 case WM_LBUTTONUP: 2237 return HEADER_LButtonUp (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam)); 2238 2239 case WM_MOUSELEAVE: 2240 return HEADER_MouseLeave (infoPtr); 2241 2242 case WM_MOUSEMOVE: 2243 return HEADER_MouseMove (infoPtr, lParam); 2244 2245 case WM_NOTIFYFORMAT: 2246 return HEADER_NotifyFormat (infoPtr, wParam, lParam); 2247 2248 case WM_SIZE: 2249 return HEADER_Size (infoPtr); 2250 2251 case WM_THEMECHANGED: 2252 return HEADER_ThemeChanged (infoPtr); 2253 2254 case WM_PRINTCLIENT: 2255 case WM_PAINT: 2256 return HEADER_Paint (infoPtr, (HDC)wParam); 2257 2258 case WM_RBUTTONUP: 2259 return HEADER_RButtonUp (infoPtr, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam)); 2260 2261 case WM_SETCURSOR: 2262 return HEADER_SetCursor (infoPtr, lParam); 2263 2264 case WM_SETFONT: 2265 return HEADER_SetFont (infoPtr, (HFONT)wParam, (WORD)lParam); 2266 2267 case WM_SETREDRAW: 2268 return HEADER_SetRedraw(infoPtr, wParam, lParam); 2269 2270 case WM_STYLECHANGED: 2271 return HEADER_StyleChanged(infoPtr, wParam, (LPSTYLESTRUCT)lParam); 2272 2273 case WM_SYSCOLORCHANGE: 2274 COMCTL32_RefreshSysColors(); 2275 return 0; 2276 2277 default: 2278 if ((msg >= WM_USER) && (msg < WM_APP) && !COMCTL32_IsReflectedMessage(msg)) 2279 ERR("unknown msg %04x wp=%04lx lp=%08lx\n", 2280 msg, wParam, lParam ); 2281 return DefWindowProcW(hwnd, msg, wParam, lParam); 2282 } 2283 } 2284 2285 2286 VOID 2287 HEADER_Register (void) 2288 { 2289 WNDCLASSW wndClass; 2290 2291 ZeroMemory (&wndClass, sizeof(WNDCLASSW)); 2292 wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS; 2293 wndClass.lpfnWndProc = HEADER_WindowProc; 2294 wndClass.cbClsExtra = 0; 2295 wndClass.cbWndExtra = sizeof(HEADER_INFO *); 2296 wndClass.hCursor = LoadCursorW (0, (LPWSTR)IDC_ARROW); 2297 wndClass.lpszClassName = WC_HEADERW; 2298 2299 RegisterClassW (&wndClass); 2300 } 2301 2302 2303 VOID 2304 HEADER_Unregister (void) 2305 { 2306 UnregisterClassW (WC_HEADERW, NULL); 2307 } 2308