Release 980413
[wine] / controls / button.c
1 /* File: button.c -- Button type widgets
2  *
3  * Copyright (C) 1993 Johannes Ruscheinski
4  * Copyright (C) 1993 David Metcalfe
5  * Copyright (C) 1994 Alexandre Julliard
6  */
7
8 #include "win.h"
9 #include "graphics.h"
10 #include "button.h"
11 #include "windows.h"
12
13 static void PB_Paint( WND *wndPtr, HDC32 hDC, WORD action );
14 static void PB_PaintGrayOnGray(HDC32 hDC,HFONT32 hFont,RECT32 *rc,char *text);
15 static void CB_Paint( WND *wndPtr, HDC32 hDC, WORD action );
16 static void GB_Paint( WND *wndPtr, HDC32 hDC, WORD action );
17 static void UB_Paint( WND *wndPtr, HDC32 hDC, WORD action );
18 static void OB_Paint( WND *wndPtr, HDC32 hDC, WORD action );
19 static void BUTTON_CheckAutoRadioButton( WND *wndPtr );
20
21 #define MAX_BTN_TYPE  12
22
23 static const WORD maxCheckState[MAX_BTN_TYPE] =
24 {
25     BUTTON_UNCHECKED,   /* BS_PUSHBUTTON */
26     BUTTON_UNCHECKED,   /* BS_DEFPUSHBUTTON */
27     BUTTON_CHECKED,     /* BS_CHECKBOX */
28     BUTTON_CHECKED,     /* BS_AUTOCHECKBOX */
29     BUTTON_CHECKED,     /* BS_RADIOBUTTON */
30     BUTTON_3STATE,      /* BS_3STATE */
31     BUTTON_3STATE,      /* BS_AUTO3STATE */
32     BUTTON_UNCHECKED,   /* BS_GROUPBOX */
33     BUTTON_UNCHECKED,   /* BS_USERBUTTON */
34     BUTTON_CHECKED,     /* BS_AUTORADIOBUTTON */
35     BUTTON_UNCHECKED,   /* Not defined */
36     BUTTON_UNCHECKED    /* BS_OWNERDRAW */
37 };
38
39 typedef void (*pfPaint)( WND *wndPtr, HDC32 hdc, WORD action );
40
41 static const pfPaint btnPaintFunc[MAX_BTN_TYPE] =
42 {
43     PB_Paint,    /* BS_PUSHBUTTON */
44     PB_Paint,    /* BS_DEFPUSHBUTTON */
45     CB_Paint,    /* BS_CHECKBOX */
46     CB_Paint,    /* BS_AUTOCHECKBOX */
47     CB_Paint,    /* BS_RADIOBUTTON */
48     CB_Paint,    /* BS_3STATE */
49     CB_Paint,    /* BS_AUTO3STATE */
50     GB_Paint,    /* BS_GROUPBOX */
51     UB_Paint,    /* BS_USERBUTTON */
52     CB_Paint,    /* BS_AUTORADIOBUTTON */
53     NULL,        /* Not defined */
54     OB_Paint     /* BS_OWNERDRAW */
55 };
56
57 #define PAINT_BUTTON(wndPtr,style,action) \
58      if (btnPaintFunc[style]) { \
59          HDC32 hdc = GetDC32( (wndPtr)->hwndSelf ); \
60          (btnPaintFunc[style])(wndPtr,hdc,action); \
61          ReleaseDC32( (wndPtr)->hwndSelf, hdc ); }
62
63 #define BUTTON_SEND_CTLCOLOR(wndPtr,hdc) \
64     SendMessage32A( GetParent32((wndPtr)->hwndSelf), WM_CTLCOLORBTN, \
65                     (hdc), (wndPtr)->hwndSelf )
66
67 static HBITMAP32 hbitmapCheckBoxes = 0;
68 static WORD checkBoxWidth = 0, checkBoxHeight = 0;
69
70
71 /***********************************************************************
72  *           ButtonWndProc
73  */
74 LRESULT WINAPI ButtonWndProc( HWND32 hWnd, UINT32 uMsg,
75                               WPARAM32 wParam, LPARAM lParam )
76 {
77     RECT32 rect;
78     POINT32 pt = { LOWORD(lParam), HIWORD(lParam) };
79     WND *wndPtr = WIN_FindWndPtr(hWnd);
80     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
81     LONG style = wndPtr->dwStyle & 0x0f;
82
83     switch (uMsg)
84     {
85     case WM_GETDLGCODE:
86         switch(style)
87         {
88         case BS_PUSHBUTTON:      return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON;
89         case BS_DEFPUSHBUTTON:   return DLGC_BUTTON | DLGC_DEFPUSHBUTTON;
90         case BS_RADIOBUTTON:
91         case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON;
92         default:                 return DLGC_BUTTON;
93         }
94
95     case WM_ENABLE:
96         PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
97         break;
98
99     case WM_CREATE:
100         if (!hbitmapCheckBoxes)
101         {
102             BITMAP32 bmp;
103             hbitmapCheckBoxes = LoadBitmap32A(0, MAKEINTRESOURCE32A(OBM_CHECKBOXES));
104             GetObject32A( hbitmapCheckBoxes, sizeof(bmp), &bmp );
105             checkBoxWidth  = bmp.bmWidth / 4;
106             checkBoxHeight = bmp.bmHeight / 3;
107         }
108         if (style < 0L || style >= MAX_BTN_TYPE) return -1; /* abort */
109         infoPtr->state = BUTTON_UNCHECKED;
110         infoPtr->hFont = 0;
111         return 0;
112
113     case WM_ERASEBKGND:
114         return 1;
115
116     case WM_PAINT:
117         if (btnPaintFunc[style])
118         {
119             PAINTSTRUCT32 ps;
120             HDC32 hdc = wParam ? (HDC32)wParam : BeginPaint32( hWnd, &ps );
121             SetBkMode32( hdc, OPAQUE );
122             (btnPaintFunc[style])( wndPtr, hdc, ODA_DRAWENTIRE );
123             if( !wParam ) EndPaint32( hWnd, &ps );
124         }
125         break;
126
127     case WM_LBUTTONDOWN:
128         SendMessage32A( hWnd, BM_SETSTATE32, TRUE, 0 );
129         SetFocus32( hWnd );
130         SetCapture32( hWnd );
131         break;
132
133     case WM_LBUTTONUP:
134         ReleaseCapture();
135         if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) break;
136         SendMessage32A( hWnd, BM_SETSTATE32, FALSE, 0 );
137         GetClientRect32( hWnd, &rect );
138         if (PtInRect32( &rect, pt ))
139         {
140             switch(style)
141             {
142             case BS_AUTOCHECKBOX:
143                 SendMessage32A( hWnd, BM_SETCHECK32,
144                                 !(infoPtr->state & BUTTON_CHECKED), 0 );
145                 break;
146             case BS_AUTORADIOBUTTON:
147                 SendMessage32A( hWnd, BM_SETCHECK32, TRUE, 0 );
148                 break;
149             case BS_AUTO3STATE:
150                 SendMessage32A( hWnd, BM_SETCHECK32,
151                                 (infoPtr->state & BUTTON_3STATE) ? 0 :
152                                 ((infoPtr->state & 3) + 1), 0 );
153                 break;
154             }
155             SendMessage32A( GetParent32(hWnd), WM_COMMAND,
156                             MAKEWPARAM( wndPtr->wIDmenu, BN_CLICKED ), hWnd);
157         }
158         break;
159
160     case WM_MOUSEMOVE:
161         if (GetCapture32() == hWnd)
162         {
163             GetClientRect32( hWnd, &rect );
164             SendMessage32A( hWnd, BM_SETSTATE32, PtInRect32(&rect, pt), 0 );
165         }
166         break;
167
168     case WM_NCHITTEST:
169         if(style == BS_GROUPBOX) return HTTRANSPARENT;
170         return DefWindowProc32A( hWnd, uMsg, wParam, lParam );
171
172     case WM_SETTEXT:
173         DEFWND_SetText( wndPtr, (LPCSTR)lParam );
174         if( wndPtr->dwStyle & WS_VISIBLE )
175             PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
176         return 0;
177
178     case WM_SETFONT:
179         infoPtr->hFont = (HFONT16)wParam;
180         if (lParam && (wndPtr->dwStyle & WS_VISIBLE)) 
181             PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
182         break;
183
184     case WM_GETFONT:
185         return infoPtr->hFont;
186
187     case WM_SETFOCUS:
188         infoPtr->state |= BUTTON_HASFOCUS;
189         PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
190         break;
191
192     case WM_KILLFOCUS:
193         infoPtr->state &= ~BUTTON_HASFOCUS;
194         PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
195         InvalidateRect32( hWnd, NULL, TRUE );
196         break;
197
198     case WM_SYSCOLORCHANGE:
199         InvalidateRect32( hWnd, NULL, FALSE );
200         break;
201
202     case BM_SETSTYLE16:
203     case BM_SETSTYLE32:
204         if ((wParam & 0x0f) >= MAX_BTN_TYPE) break;
205         wndPtr->dwStyle = (wndPtr->dwStyle & 0xfffffff0) 
206                            | (wParam & 0x0000000f);
207         style = wndPtr->dwStyle & 0x0000000f;
208         PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
209         break;
210
211     case BM_GETCHECK16:
212     case BM_GETCHECK32:
213         return infoPtr->state & 3;
214
215     case BM_SETCHECK16:
216     case BM_SETCHECK32:
217         if (wParam > maxCheckState[style]) wParam = maxCheckState[style];
218         if ((infoPtr->state & 3) != wParam)
219         {
220             infoPtr->state = (infoPtr->state & ~3) | wParam;
221             PAINT_BUTTON( wndPtr, style, ODA_SELECT );
222         }
223         if ((style == BS_AUTORADIOBUTTON) && (wParam == BUTTON_CHECKED))
224             BUTTON_CheckAutoRadioButton( wndPtr );
225         break;
226
227     case BM_GETSTATE16:
228     case BM_GETSTATE32:
229         return infoPtr->state;
230
231     case BM_SETSTATE16:
232     case BM_SETSTATE32:
233         if (wParam)
234         {
235             if (infoPtr->state & BUTTON_HIGHLIGHTED) break;
236             infoPtr->state |= BUTTON_HIGHLIGHTED;
237         }
238         else
239         {
240             if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) break;
241             infoPtr->state &= ~BUTTON_HIGHLIGHTED;
242         }
243         PAINT_BUTTON( wndPtr, style, ODA_SELECT );
244         break;
245
246     default:
247         return DefWindowProc32A(hWnd, uMsg, wParam, lParam);
248     }
249     return 0;
250 }
251
252
253 /**********************************************************************
254  *       Push Button Functions
255  */
256
257 static void PB_Paint( WND *wndPtr, HDC32 hDC, WORD action )
258 {
259     RECT32 rc;
260     HPEN32 hOldPen;
261     HBRUSH32 hOldBrush;
262     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
263
264     GetClientRect32( wndPtr->hwndSelf, &rc );
265
266       /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
267     if (infoPtr->hFont) SelectObject32( hDC, infoPtr->hFont );
268     BUTTON_SEND_CTLCOLOR( wndPtr, hDC );
269     hOldPen = (HPEN32)SelectObject32(hDC, GetSysColorPen32(COLOR_WINDOWFRAME));
270     hOldBrush =(HBRUSH32)SelectObject32(hDC,GetSysColorBrush32(COLOR_BTNFACE));
271     SetBkMode32(hDC, TRANSPARENT);
272     Rectangle32(hDC, rc.left, rc.top, rc.right, rc.bottom);
273     if (action == ODA_DRAWENTIRE)
274     {
275         SetPixel32( hDC, rc.left, rc.top, GetSysColor32(COLOR_WINDOW) );
276         SetPixel32( hDC, rc.left, rc.bottom-1, GetSysColor32(COLOR_WINDOW) );
277         SetPixel32( hDC, rc.right-1, rc.top, GetSysColor32(COLOR_WINDOW) );
278         SetPixel32( hDC, rc.right-1, rc.bottom-1, GetSysColor32(COLOR_WINDOW));
279     }
280     InflateRect32( &rc, -1, -1 );
281
282     if ((wndPtr->dwStyle & 0x000f) == BS_DEFPUSHBUTTON)
283     {
284         Rectangle32(hDC, rc.left, rc.top, rc.right, rc.bottom);
285         InflateRect32( &rc, -1, -1 );
286     }
287
288     if (infoPtr->state & BUTTON_HIGHLIGHTED)
289     {
290         /* draw button shadow: */
291         SelectObject32(hDC, GetSysColorBrush32(COLOR_BTNSHADOW));
292         PatBlt32(hDC, rc.left, rc.top, 1, rc.bottom-rc.top, PATCOPY );
293         PatBlt32(hDC, rc.left, rc.top, rc.right-rc.left, 1, PATCOPY );
294         rc.left += 2;  /* To position the text down and right */
295         rc.top  += 2;
296     }
297     else GRAPH_DrawReliefRect( hDC, &rc, 2, 2, FALSE );
298     
299     /* draw button label, if any: */
300     if (wndPtr->text && wndPtr->text[0])
301     {
302         LOGBRUSH32 lb;
303         GetObject32A( GetSysColorBrush32(COLOR_BTNFACE), sizeof(lb), &lb );
304         if (wndPtr->dwStyle & WS_DISABLED &&
305             GetSysColor32(COLOR_GRAYTEXT)==lb.lbColor)
306             /* don't write gray text on gray bkg */
307             PB_PaintGrayOnGray(hDC,infoPtr->hFont,&rc,wndPtr->text);
308         else
309         {
310             SetTextColor32( hDC, (wndPtr->dwStyle & WS_DISABLED) ?
311                                  GetSysColor32(COLOR_GRAYTEXT) :
312                                  GetSysColor32(COLOR_BTNTEXT) );
313             DrawText32A( hDC, wndPtr->text, -1, &rc,
314                          DT_SINGLELINE | DT_CENTER | DT_VCENTER );
315             /* do we have the focus? */
316             if (infoPtr->state & BUTTON_HASFOCUS)
317             {
318                 RECT32 r = { 0, 0, 0, 0 };
319                 INT32 xdelta, ydelta;
320
321                 DrawText32A( hDC, wndPtr->text, -1, &r,
322                              DT_SINGLELINE | DT_CALCRECT );
323                 xdelta = ((rc.right - rc.left) - (r.right - r.left) - 1) / 2;
324                 ydelta = ((rc.bottom - rc.top) - (r.bottom - r.top) - 1) / 2;
325                 if (xdelta < 0) xdelta = 0;
326                 if (ydelta < 0) ydelta = 0;
327                 InflateRect32( &rc, -xdelta, -ydelta );
328                 DrawFocusRect32( hDC, &rc );
329             }
330         }   
331     }
332
333     SelectObject32( hDC, hOldPen );
334     SelectObject32( hDC, hOldBrush );
335 }
336
337
338 /**********************************************************************
339  *   Push Button sub function                               [internal]
340  *   using a raster brush to avoid gray text on gray background
341  */
342
343 void PB_PaintGrayOnGray(HDC32 hDC,HFONT32 hFont,RECT32 *rc,char *text)
344 {
345     static const int Pattern[] = {0xAA,0x55,0xAA,0x55,0xAA,0x55,0xAA,0x55};
346     HBITMAP32 hbm  = CreateBitmap32( 8, 8, 1, 1, Pattern );
347     HDC32 hdcMem = CreateCompatibleDC32(hDC);
348     HBITMAP32 hbmMem;
349     HBRUSH32 hBr;
350     RECT32 rect,rc2;
351
352     rect=*rc;
353     DrawText32A( hDC, text, -1, &rect, DT_SINGLELINE | DT_CALCRECT);
354     rc2=rect;
355     rect.left=(rc->right-rect.right)/2;       /* for centering text bitmap */
356     rect.top=(rc->bottom-rect.bottom)/2;
357     hbmMem = CreateCompatibleBitmap32( hDC,rect.right,rect.bottom );
358     SelectObject32( hdcMem, hbmMem);
359     hBr = SelectObject32( hdcMem, CreatePatternBrush32(hbm) );
360     DeleteObject32( hbm );
361     PatBlt32( hdcMem,0,0,rect.right,rect.bottom,WHITENESS);
362     if (hFont) SelectObject32( hdcMem, hFont);
363     DrawText32A( hdcMem, text, -1, &rc2, DT_SINGLELINE);  
364     PatBlt32( hdcMem,0,0,rect.right,rect.bottom,0xFA0089);
365     DeleteObject32( SelectObject32( hdcMem,hBr) );
366     BitBlt32(hDC,rect.left,rect.top,rect.right,rect.bottom,hdcMem,0,0,0x990000);
367     DeleteDC32( hdcMem);
368     DeleteObject32( hbmMem );
369 }
370
371
372 /**********************************************************************
373  *       Check Box & Radio Button Functions
374  */
375
376 static void CB_Paint( WND *wndPtr, HDC32 hDC, WORD action )
377 {
378     RECT32 rbox, rtext, client;
379     HBRUSH32 hBrush;
380     int textlen, delta;
381     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
382
383     textlen = 0;
384     GetClientRect32(wndPtr->hwndSelf, &client);
385     rbox = rtext = client;
386
387     if (infoPtr->hFont) SelectObject32( hDC, infoPtr->hFont );
388
389     /* Something is still not right, checkboxes (and edit controls)
390      * in wsping32 have white backgrounds instead of dark grey.
391      * BUTTON_SEND_CTLCOLOR() is even worse since it returns 0 in this
392      * particular case and the background is not painted at all.
393      */
394
395     hBrush = GetControlBrush( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
396
397     if (wndPtr->dwStyle & BS_LEFTTEXT) 
398     {
399         /* magic +4 is what CTL3D expects */
400
401         rtext.right -= checkBoxWidth + 4;
402         rbox.left = rbox.right - checkBoxWidth;
403     }
404     else 
405     {
406         rtext.left += checkBoxWidth + 4;
407         rbox.right = checkBoxWidth;
408     }
409
410       /* Draw the check-box bitmap */
411
412     if (wndPtr->text) textlen = strlen( wndPtr->text );
413     if (action == ODA_DRAWENTIRE || action == ODA_SELECT)
414     { 
415         int x = 0, y = 0;
416         delta = (rbox.bottom - rbox.top - checkBoxHeight) >> 1;
417
418         if (action == ODA_SELECT) FillRect32( hDC, &rbox, hBrush );
419         else FillRect32( hDC, &client, hBrush );
420
421         if (infoPtr->state & BUTTON_HIGHLIGHTED) x += 2 * checkBoxWidth;
422         if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE)) x += checkBoxWidth;
423         if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
424             ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON)) y += checkBoxHeight;
425         else if (infoPtr->state & BUTTON_3STATE) y += 2 * checkBoxHeight;
426
427         GRAPH_DrawBitmap( hDC, hbitmapCheckBoxes, rbox.left, rbox.top + delta,
428                           x, y, checkBoxWidth, checkBoxHeight, FALSE );
429         if( textlen && action != ODA_SELECT )
430         {
431             if (wndPtr->dwStyle & WS_DISABLED)
432                 SetTextColor32( hDC, GetSysColor32(COLOR_GRAYTEXT) );
433             DrawText32A( hDC, wndPtr->text, textlen, &rtext,
434                          DT_SINGLELINE | DT_VCENTER );
435             textlen = 0; /* skip DrawText() below */
436         }
437     }
438
439     if ((action == ODA_FOCUS) ||
440         ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
441     {
442         /* again, this is what CTL3D expects */
443
444         SetRectEmpty32(&rbox);
445         if( textlen )
446             DrawText32A( hDC, wndPtr->text, textlen, &rbox,
447                          DT_SINGLELINE | DT_CALCRECT );
448         textlen = rbox.bottom - rbox.top;
449         delta = ((rtext.bottom - rtext.top) - textlen)/2;
450         rbox.bottom = (rbox.top = rtext.top + delta - 1) + textlen + 2;
451         textlen = rbox.right - rbox.left;
452         rbox.right = (rbox.left += --rtext.left) + textlen + 2;
453         IntersectRect32(&rbox, &rbox, &rtext);
454         DrawFocusRect32( hDC, &rbox );
455     }
456 }
457
458
459 /**********************************************************************
460  *       BUTTON_CheckAutoRadioButton
461  *
462  * wndPtr is checked, uncheck every other auto radio button in group
463  */
464 static void BUTTON_CheckAutoRadioButton( WND *wndPtr )
465 {
466     HWND32 parent, sibling, start;
467     if (!(wndPtr->dwStyle & WS_CHILD)) return;
468     parent = wndPtr->parent->hwndSelf;
469     /* assure that starting control is not disabled or invisible */
470     start = sibling = GetNextDlgGroupItem32( parent, wndPtr->hwndSelf, TRUE );
471     do
472     {
473         if (!sibling) break;
474         if ((wndPtr->hwndSelf != sibling) &&
475             ((WIN_FindWndPtr(sibling)->dwStyle & 0x0f) == BS_AUTORADIOBUTTON))
476             SendMessage32A( sibling, BM_SETCHECK32, BUTTON_UNCHECKED, 0 );
477         sibling = GetNextDlgGroupItem32( parent, sibling, FALSE );
478     } while (sibling != start);
479 }
480
481
482 /**********************************************************************
483  *       Group Box Functions
484  */
485
486 static void GB_Paint( WND *wndPtr, HDC32 hDC, WORD action )
487 {
488     RECT32 rc;
489     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
490
491     if (action != ODA_DRAWENTIRE) return;
492
493     BUTTON_SEND_CTLCOLOR( wndPtr, hDC );
494
495     GetClientRect32( wndPtr->hwndSelf, &rc);
496     GRAPH_DrawRectangle( hDC, rc.left, rc.top + 2, rc.right - 1, rc.bottom - 1,
497                          GetSysColorPen32(COLOR_WINDOWFRAME) );
498     if (wndPtr->text)
499     {
500         if (infoPtr->hFont) SelectObject32( hDC, infoPtr->hFont );
501         if (wndPtr->dwStyle & WS_DISABLED)
502             SetTextColor32( hDC, GetSysColor32(COLOR_GRAYTEXT) );
503         rc.left += 10;
504         DrawText32A( hDC, wndPtr->text, -1, &rc, DT_SINGLELINE | DT_NOCLIP );
505     }
506 }
507
508
509 /**********************************************************************
510  *       User Button Functions
511  */
512
513 static void UB_Paint( WND *wndPtr, HDC32 hDC, WORD action )
514 {
515     RECT32 rc;
516     HBRUSH32 hBrush;
517     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
518
519     if (action == ODA_SELECT) return;
520
521     GetClientRect32( wndPtr->hwndSelf, &rc);
522
523     if (infoPtr->hFont) SelectObject32( hDC, infoPtr->hFont );
524     hBrush = GetControlBrush( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
525
526     FillRect32( hDC, &rc, hBrush );
527     if ((action == ODA_FOCUS) ||
528         ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
529         DrawFocusRect32( hDC, &rc );
530 }
531
532
533 /**********************************************************************
534  *       Ownerdrawn Button Functions
535  */
536
537 static void OB_Paint( WND *wndPtr, HDC32 hDC, WORD action )
538 {
539     BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
540     DRAWITEMSTRUCT32 dis;
541
542     dis.CtlType    = ODT_BUTTON;
543     dis.CtlID      = wndPtr->wIDmenu;
544     dis.itemID     = 0;
545     dis.itemAction = action;
546     dis.itemState  = ((infoPtr->state & BUTTON_HASFOCUS) ? ODS_FOCUS : 0) |
547                      ((infoPtr->state & BUTTON_HIGHLIGHTED) ? ODS_SELECTED : 0) |
548                      ((wndPtr->dwStyle & WS_DISABLED) ? ODS_DISABLED : 0);
549     dis.hwndItem   = wndPtr->hwndSelf;
550     dis.hDC        = hDC;
551     dis.itemData   = 0;
552     GetClientRect32( wndPtr->hwndSelf, &dis.rcItem );
553     SendMessage32A( GetParent32(wndPtr->hwndSelf), WM_DRAWITEM,
554                     wndPtr->wIDmenu, (LPARAM)&dis );
555 }