1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/msw/wince/choicece.cpp
3 // Purpose: wxChoice implementation for smart phones driven by WinCE
4 // Author: Wlodzimierz ABX Skiba
5 // Modified by:
6 // Created: 29.07.2004
7 // RCS-ID: $Id: choicece.cpp 42816 2006-10-31 08:50:17Z RD $
8 // Copyright: (c) Wlodzimierz Skiba
9 // License: wxWindows licence
10 ///////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #if wxUSE_CHOICE && defined(__SMARTPHONE__) && defined(__WXWINCE__)
28
29 #include "wx/choice.h"
30
31 #ifndef WX_PRECOMP
32 #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
33 #endif
34
35 #include "wx/spinbutt.h" // for wxSpinnerBestSize
36
37 #if wxUSE_EXTENDED_RTTI
38 // TODO
39 #else
40 IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
41 #endif
42
43 #define GetBuddyHwnd() (HWND)(m_hwndBuddy)
44
45 #define IsVertical(wxStyle) ( (wxStyle & wxSP_HORIZONTAL) != wxSP_HORIZONTAL )
46
47 // ----------------------------------------------------------------------------
48 // constants
49 // ----------------------------------------------------------------------------
50
51 // the margin between the up-down control and its buddy (can be arbitrary,
52 // choose what you like - or may be decide during run-time depending on the
53 // font size?)
54 static const int MARGIN_BETWEEN = 0;
55
56 // ============================================================================
57 // implementation
58 // ============================================================================
59
60 wxArrayChoiceSpins wxChoice::ms_allChoiceSpins;
61
62 // ----------------------------------------------------------------------------
63 // wnd proc for the buddy text ctrl
64 // ----------------------------------------------------------------------------
65
wxBuddyChoiceWndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)66 LRESULT APIENTRY _EXPORT wxBuddyChoiceWndProc(HWND hwnd,
67 UINT message,
68 WPARAM wParam,
69 LPARAM lParam)
70 {
71 wxChoice *spin = (wxChoice *)wxGetWindowUserData(hwnd);
72
73 // forward some messages (the key and focus ones only so far) to
74 // the spin ctrl
75 switch ( message )
76 {
77 case WM_SETFOCUS:
78 // if the focus comes from the spin control itself, don't set it
79 // back to it -- we don't want to go into an infinite loop
80 if ( (WXHWND)wParam == spin->GetHWND() )
81 break;
82 //else: fall through
83
84 case WM_KILLFOCUS:
85 case WM_CHAR:
86 case WM_DEADCHAR:
87 case WM_KEYUP:
88 case WM_KEYDOWN:
89 spin->MSWWindowProc(message, wParam, lParam);
90
91 // The control may have been deleted at this point, so check.
92 if ( !::IsWindow(hwnd) || wxGetWindowUserData(hwnd) != spin )
93 return 0;
94 break;
95
96 case WM_GETDLGCODE:
97 // we want to get WXK_RETURN in order to generate the event for it
98 return DLGC_WANTCHARS;
99 }
100
101 return ::CallWindowProc(CASTWNDPROC spin->GetBuddyWndProc(),
102 hwnd, message, wParam, lParam);
103 }
104
GetChoiceForListBox(WXHWND hwndBuddy)105 wxChoice *wxChoice::GetChoiceForListBox(WXHWND hwndBuddy)
106 {
107 wxChoice *choice = (wxChoice *)wxGetWindowUserData((HWND)hwndBuddy);
108
109 int i = ms_allChoiceSpins.Index(choice);
110
111 if ( i == wxNOT_FOUND )
112 return NULL;
113
114 // sanity check
115 wxASSERT_MSG( choice->m_hwndBuddy == hwndBuddy,
116 _T("wxChoice has incorrect buddy HWND!") );
117
118 return choice;
119 }
120
121 // ----------------------------------------------------------------------------
122 // creation
123 // ----------------------------------------------------------------------------
124
Create(wxWindow * parent,wxWindowID id,const wxPoint & pos,const wxSize & size,int n,const wxString choices[],long style,const wxValidator & validator,const wxString & name)125 bool wxChoice::Create(wxWindow *parent,
126 wxWindowID id,
127 const wxPoint& pos,
128 const wxSize& size,
129 int n, const wxString choices[],
130 long style,
131 const wxValidator& validator,
132 const wxString& name)
133 {
134 return CreateAndInit(parent, id, pos, size, n, choices, style,
135 validator, name);
136 }
137
CreateAndInit(wxWindow * parent,wxWindowID id,const wxPoint & pos,const wxSize & size,int n,const wxString choices[],long style,const wxValidator & validator,const wxString & name)138 bool wxChoice::CreateAndInit(wxWindow *parent,
139 wxWindowID id,
140 const wxPoint& pos,
141 const wxSize& size,
142 int n, const wxString choices[],
143 long style,
144 const wxValidator& validator,
145 const wxString& name)
146 {
147 if ( !(style & wxSP_VERTICAL) )
148 style |= wxSP_HORIZONTAL;
149
150 if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
151 style |= wxBORDER_SIMPLE;
152
153 style |= wxSP_ARROW_KEYS;
154
155 SetWindowStyle(style);
156
157 WXDWORD exStyle = 0;
158 WXDWORD msStyle = MSWGetStyle(GetWindowStyle(), & exStyle) ;
159
160 wxSize sizeText(size), sizeBtn(size);
161 sizeBtn.x = GetBestSpinnerSize(IsVertical(style)).x;
162
163 if ( sizeText.x == wxDefaultCoord )
164 {
165 // DEFAULT_ITEM_WIDTH is the default width for the text control
166 sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;
167 }
168
169 sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
170 if ( sizeText.x <= 0 )
171 {
172 wxLogDebug(_T("not enough space for wxSpinCtrl!"));
173 }
174
175 wxPoint posBtn(pos);
176 posBtn.x += sizeText.x + MARGIN_BETWEEN;
177
178 // we must create the list control before the spin button for the purpose
179 // of the dialog navigation: if there is a static text just before the spin
180 // control, activating it by Alt-letter should give focus to the text
181 // control, not the spin and the dialog navigation code will give focus to
182 // the next control (at Windows level), not the one after it
183
184 // create the text window
185
186 m_hwndBuddy = (WXHWND)::CreateWindowEx
187 (
188 exStyle, // sunken border
189 _T("LISTBOX"), // window class
190 NULL, // no window title
191 msStyle, // style (will be shown later)
192 pos.x, pos.y, // position
193 0, 0, // size (will be set later)
194 GetHwndOf(parent), // parent
195 (HMENU)-1, // control id
196 wxGetInstance(), // app instance
197 NULL // unused client data
198 );
199
200 if ( !m_hwndBuddy )
201 {
202 wxLogLastError(wxT("CreateWindow(buddy text window)"));
203
204 return false;
205 }
206
207 // initialize wxControl
208 if ( !CreateControl(parent, id, posBtn, sizeBtn, style, validator, name) )
209 return false;
210
211 // now create the real HWND
212 WXDWORD spiner_style = WS_VISIBLE |
213 UDS_ALIGNRIGHT |
214 UDS_ARROWKEYS |
215 UDS_SETBUDDYINT |
216 UDS_EXPANDABLE;
217
218 if ( !IsVertical(style) )
219 spiner_style |= UDS_HORZ;
220
221 if ( style & wxSP_WRAP )
222 spiner_style |= UDS_WRAP;
223
224 if ( !MSWCreateControl(UPDOWN_CLASS, spiner_style, posBtn, sizeBtn, wxEmptyString, 0) )
225 return false;
226
227 // subclass the text ctrl to be able to intercept some events
228 wxSetWindowUserData(GetBuddyHwnd(), this);
229 m_wndProcBuddy = (WXFARPROC)wxSetWindowProc(GetBuddyHwnd(),
230 wxBuddyChoiceWndProc);
231
232 // set up fonts and colours (This is nomally done in MSWCreateControl)
233 InheritAttributes();
234 if (!m_hasFont)
235 SetFont(GetDefaultAttributes().font);
236
237 // set the size of the text window - can do it only now, because we
238 // couldn't call DoGetBestSize() before as font wasn't set
239 if ( sizeText.y <= 0 )
240 {
241 int cx, cy;
242 wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
243
244 sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
245 }
246
247 SetInitialSize(size);
248
249 (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);
250
251 // associate the list window with the spin button
252 (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)GetBuddyHwnd(), 0);
253
254 // do it after finishing with m_hwndBuddy creation to avoid generating
255 // initial wxEVT_COMMAND_TEXT_UPDATED message
256 ms_allChoiceSpins.Add(this);
257
258 // initialize the controls contents
259 for ( int i = 0; i < n; i++ )
260 {
261 Append(choices[i]);
262 }
263
264 return true;
265 }
266
Create(wxWindow * parent,wxWindowID id,const wxPoint & pos,const wxSize & size,const wxArrayString & choices,long style,const wxValidator & validator,const wxString & name)267 bool wxChoice::Create(wxWindow *parent,
268 wxWindowID id,
269 const wxPoint& pos,
270 const wxSize& size,
271 const wxArrayString& choices,
272 long style,
273 const wxValidator& validator,
274 const wxString& name)
275 {
276 wxCArrayString chs(choices);
277 return Create(parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
278 style, validator, name);
279 }
280
MSWGetStyle(long style,WXDWORD * exstyle) const281 WXDWORD wxChoice::MSWGetStyle(long style, WXDWORD *exstyle) const
282 {
283 // we never have an external border
284 WXDWORD msStyle = wxControl::MSWGetStyle
285 (
286 (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
287 );
288
289 msStyle |= WS_VISIBLE;
290
291 // wxChoice-specific styles
292 msStyle |= LBS_NOINTEGRALHEIGHT;
293 if ( style & wxCB_SORT )
294 msStyle |= LBS_SORT;
295
296 msStyle |= LBS_NOTIFY;
297
298 return msStyle;
299 }
300
MSWCommand(WXUINT param,WXWORD WXUNUSED (id))301 bool wxChoice::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
302 {
303 if ( param != LBN_SELCHANGE)
304 {
305 // "selection changed" is the only event we're after
306 return false;
307 }
308
309 int n = GetSelection();
310 if (n > -1)
311 {
312 wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId);
313 event.SetInt(n);
314 event.SetEventObject(this);
315 event.SetString(GetStringSelection());
316 if ( HasClientObjectData() )
317 event.SetClientObject( GetClientObject(n) );
318 else if ( HasClientUntypedData() )
319 event.SetClientData( GetClientData(n) );
320 ProcessCommand(event);
321 }
322
323 return true;
324 }
325
~wxChoice()326 wxChoice::~wxChoice()
327 {
328 Free();
329 }
330
331 // ----------------------------------------------------------------------------
332 // adding/deleting items to/from the list
333 // ----------------------------------------------------------------------------
334
DoAppend(const wxString & item)335 int wxChoice::DoAppend(const wxString& item)
336 {
337 int n = (int)::SendMessage(GetBuddyHwnd(), LB_ADDSTRING, 0, (LPARAM)item.c_str());
338
339 if ( n == LB_ERR )
340 {
341 wxLogLastError(wxT("SendMessage(LB_ADDSTRING)"));
342 }
343
344 return n;
345 }
346
DoInsert(const wxString & item,unsigned int pos)347 int wxChoice::DoInsert(const wxString& item, unsigned int pos)
348 {
349 wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into choice"));
350 wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
351
352 int n = (int)::SendMessage(GetBuddyHwnd(), LB_INSERTSTRING, pos, (LPARAM)item.c_str());
353 if ( n == LB_ERR )
354 {
355 wxLogLastError(wxT("SendMessage(LB_INSERTSTRING)"));
356 }
357
358 return n;
359 }
360
Delete(unsigned int n)361 void wxChoice::Delete(unsigned int n)
362 {
363 wxCHECK_RET( IsValid(n), wxT("invalid item index in wxChoice::Delete") );
364
365 if ( HasClientObjectData() )
366 {
367 delete GetClientObject(n);
368 }
369
370 ::SendMessage(GetBuddyHwnd(), LB_DELETESTRING, n, 0);
371 }
372
Clear()373 void wxChoice::Clear()
374 {
375 Free();
376
377 ::SendMessage(GetBuddyHwnd(), LB_RESETCONTENT, 0, 0);
378 }
379
Free()380 void wxChoice::Free()
381 {
382 if ( HasClientObjectData() )
383 {
384 unsigned int count = GetCount();
385 for ( unsigned int n = 0; n < count; n++ )
386 {
387 delete GetClientObject(n);
388 }
389 }
390 }
391
392 // ----------------------------------------------------------------------------
393 // selection
394 // ----------------------------------------------------------------------------
395
GetSelection() const396 int wxChoice::GetSelection() const
397 {
398 return (int)::SendMessage(GetBuddyHwnd(), LB_GETCURSEL, 0, 0);
399 }
400
SetSelection(int n)401 void wxChoice::SetSelection(int n)
402 {
403 ::SendMessage(GetBuddyHwnd(), LB_SETCURSEL, n, 0);
404 }
405
406 // ----------------------------------------------------------------------------
407 // string list functions
408 // ----------------------------------------------------------------------------
409
GetCount() const410 unsigned int wxChoice::GetCount() const
411 {
412 return (unsigned int)::SendMessage(GetBuddyHwnd(), LB_GETCOUNT, 0, 0);
413 }
414
FindString(const wxString & s,bool bCase) const415 int wxChoice::FindString(const wxString& s, bool bCase) const
416 {
417 // back to base class search for not native search type
418 if (bCase)
419 return wxItemContainerImmutable::FindString( s, bCase );
420
421 int pos = (int)::SendMessage(GetBuddyHwnd(), LB_FINDSTRINGEXACT,
422 (WPARAM)-1, (LPARAM)s.c_str());
423
424 return pos == LB_ERR ? wxNOT_FOUND : pos;
425 }
426
SetString(unsigned int n,const wxString & s)427 void wxChoice::SetString(unsigned int n, const wxString& s)
428 {
429 wxCHECK_RET( IsValid(n),
430 wxT("invalid item index in wxChoice::SetString") );
431
432 // we have to delete and add back the string as there is no way to change a
433 // string in place
434
435 // we need to preserve the client data
436 void *data;
437 if ( m_clientDataItemsType != wxClientData_None )
438 {
439 data = DoGetItemClientData(n);
440 }
441 else // no client data
442 {
443 data = NULL;
444 }
445
446 ::SendMessage(GetBuddyHwnd(), LB_DELETESTRING, n, 0);
447 ::SendMessage(GetBuddyHwnd(), LB_INSERTSTRING, n, (LPARAM)s.c_str() );
448
449 if ( data )
450 {
451 DoSetItemClientData(n, data);
452 }
453 //else: it's already NULL by default
454 }
455
GetString(unsigned int n) const456 wxString wxChoice::GetString(unsigned int n) const
457 {
458 int len = (int)::SendMessage(GetBuddyHwnd(), LB_GETTEXTLEN, n, 0);
459
460 wxString str;
461 if ( len != LB_ERR && len > 0 )
462 {
463 if ( ::SendMessage
464 (
465 GetBuddyHwnd(),
466 LB_GETTEXT,
467 n,
468 (LPARAM)(wxChar *)wxStringBuffer(str, len)
469 ) == LB_ERR )
470 {
471 wxLogLastError(wxT("SendMessage(LB_GETLBTEXT)"));
472 }
473 }
474
475 return str;
476 }
477
478 // ----------------------------------------------------------------------------
479 // client data
480 // ----------------------------------------------------------------------------
481
DoSetItemClientData(unsigned int n,void * clientData)482 void wxChoice::DoSetItemClientData(unsigned int n, void* clientData)
483 {
484 if ( ::SendMessage(GetHwnd(), LB_SETITEMDATA,
485 n, (LPARAM)clientData) == LB_ERR )
486 {
487 wxLogLastError(wxT("LB_SETITEMDATA"));
488 }
489 }
490
DoGetItemClientData(unsigned int n) const491 void* wxChoice::DoGetItemClientData(unsigned int n) const
492 {
493 LPARAM rc = ::SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0);
494 if ( rc == LB_ERR )
495 {
496 wxLogLastError(wxT("LB_GETITEMDATA"));
497
498 // unfortunately, there is no way to return an error code to the user
499 rc = (LPARAM) NULL;
500 }
501
502 return (void *)rc;
503 }
504
DoSetItemClientObject(unsigned int n,wxClientData * clientData)505 void wxChoice::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
506 {
507 DoSetItemClientData(n, clientData);
508 }
509
DoGetItemClientObject(unsigned int n) const510 wxClientData* wxChoice::DoGetItemClientObject(unsigned int n) const
511 {
512 return (wxClientData *)DoGetItemClientData(n);
513 }
514
515 // ----------------------------------------------------------------------------
516 // size calculations
517 // ----------------------------------------------------------------------------
518
DoGetBestSize() const519 wxSize wxChoice::DoGetBestSize() const
520 {
521 wxSize sizeBtn = GetBestSpinnerSize(IsVertical(GetWindowStyle()));
522 sizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;
523
524 int y;
525 wxGetCharSize(GetHWND(), NULL, &y, GetFont());
526 y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(y);
527
528 // JACS: we should always use the height calculated
529 // from above, because otherwise we'll get a spin control
530 // that's too big. So never use the height calculated
531 // from wxSpinButton::DoGetBestSize().
532
533 // if ( sizeBtn.y < y )
534 {
535 // make the text tall enough
536 sizeBtn.y = y;
537 }
538
539 return sizeBtn;
540 }
541
DoMoveWindow(int x,int y,int width,int height)542 void wxChoice::DoMoveWindow(int x, int y, int width, int height)
543 {
544 int widthBtn = GetBestSpinnerSize(IsVertical(GetWindowStyle())).x;
545 int widthText = width - widthBtn - MARGIN_BETWEEN;
546 if ( widthText <= 0 )
547 {
548 wxLogDebug(_T("not enough space for wxSpinCtrl!"));
549 }
550
551 if ( !::MoveWindow(GetBuddyHwnd(), x, y, widthText, height, TRUE) )
552 {
553 wxLogLastError(wxT("MoveWindow(buddy)"));
554 }
555
556 x += widthText + MARGIN_BETWEEN;
557 if ( !::MoveWindow(GetHwnd(), x, y, widthBtn, height, TRUE) )
558 {
559 wxLogLastError(wxT("MoveWindow"));
560 }
561 }
562
563 // get total size of the control
DoGetSize(int * x,int * y) const564 void wxChoice::DoGetSize(int *x, int *y) const
565 {
566 RECT spinrect, textrect, ctrlrect;
567 GetWindowRect(GetHwnd(), &spinrect);
568 GetWindowRect(GetBuddyHwnd(), &textrect);
569 UnionRect(&ctrlrect, &textrect, &spinrect);
570
571 if ( x )
572 *x = ctrlrect.right - ctrlrect.left;
573 if ( y )
574 *y = ctrlrect.bottom - ctrlrect.top;
575 }
576
DoGetPosition(int * x,int * y) const577 void wxChoice::DoGetPosition(int *x, int *y) const
578 {
579 // hack: pretend that our HWND is the text control just for a moment
580 WXHWND hWnd = GetHWND();
581 wxConstCast(this, wxChoice)->m_hWnd = m_hwndBuddy;
582
583 wxChoiceBase::DoGetPosition(x, y);
584
585 wxConstCast(this, wxChoice)->m_hWnd = hWnd;
586 }
587
588 #endif // wxUSE_CHOICE && __SMARTPHONE__ && __WXWINCE__
589