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Fixed getting a variable address.
[wine/multimedia.git] / controls / button.c
blob2fabeba6ee275220c9c04ed2628b4c8dd0697299
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 <string.h>
9 #include <stdlib.h> /* for abs() */
10 #include "win.h"
11 #include "winbase.h"
12 #include "windef.h"
13 #include "wingdi.h"
14 #include "wine/winuser16.h"
15 #include "controls.h"
16 #include "user.h"
17
18 /* Note: under MS-Windows, state is a BYTE and this structure is
19 * only 3 bytes long. I don't think there are programs out there
20 * broken enough to rely on this :-)
21 */
22 typedef struct
23 {
24 WORD state; /* Current state */
25 HFONT16 hFont; /* Button font (or 0 for system font) */
26 HANDLE hImage; /* Handle to the image or the icon */
27 } BUTTONINFO;
28
29 /* Button state values */
30 #define BUTTON_UNCHECKED 0x00
31 #define BUTTON_CHECKED 0x01
32 #define BUTTON_3STATE 0x02
33 #define BUTTON_HIGHLIGHTED 0x04
34 #define BUTTON_HASFOCUS 0x08
35 #define BUTTON_NSTATES 0x0F
36 /* undocumented flags */
37 #define BUTTON_BTNPRESSED 0x40
38 #define BUTTON_UNKNOWN2 0x20
39 #define BUTTON_UNKNOWN3 0x10
40
41 static void PB_Paint( WND *wndPtr, HDC hDC, WORD action );
42 static void CB_Paint( WND *wndPtr, HDC hDC, WORD action );
43 static void GB_Paint( WND *wndPtr, HDC hDC, WORD action );
44 static void UB_Paint( WND *wndPtr, HDC hDC, WORD action );
45 static void OB_Paint( WND *wndPtr, HDC hDC, WORD action );
46 static void BUTTON_CheckAutoRadioButton( WND *wndPtr );
47 static void BUTTON_DrawPushButton( WND *wndPtr, HDC hDC, WORD action, BOOL pushedState);
48 static LRESULT WINAPI ButtonWndProcA( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
49 static LRESULT WINAPI ButtonWndProcW( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
50
51 #define MAX_BTN_TYPE 12
52
53 static const WORD maxCheckState[MAX_BTN_TYPE] =
54 {
55 BUTTON_UNCHECKED, /* BS_PUSHBUTTON */
56 BUTTON_UNCHECKED, /* BS_DEFPUSHBUTTON */
57 BUTTON_CHECKED, /* BS_CHECKBOX */
58 BUTTON_CHECKED, /* BS_AUTOCHECKBOX */
59 BUTTON_CHECKED, /* BS_RADIOBUTTON */
60 BUTTON_3STATE, /* BS_3STATE */
61 BUTTON_3STATE, /* BS_AUTO3STATE */
62 BUTTON_UNCHECKED, /* BS_GROUPBOX */
63 BUTTON_UNCHECKED, /* BS_USERBUTTON */
64 BUTTON_CHECKED, /* BS_AUTORADIOBUTTON */
65 BUTTON_UNCHECKED, /* Not defined */
66 BUTTON_UNCHECKED /* BS_OWNERDRAW */
67 };
68
69 typedef void (*pfPaint)( WND *wndPtr, HDC hdc, WORD action );
70
71 static const pfPaint btnPaintFunc[MAX_BTN_TYPE] =
72 {
73 PB_Paint, /* BS_PUSHBUTTON */
74 PB_Paint, /* BS_DEFPUSHBUTTON */
75 CB_Paint, /* BS_CHECKBOX */
76 CB_Paint, /* BS_AUTOCHECKBOX */
77 CB_Paint, /* BS_RADIOBUTTON */
78 CB_Paint, /* BS_3STATE */
79 CB_Paint, /* BS_AUTO3STATE */
80 GB_Paint, /* BS_GROUPBOX */
81 UB_Paint, /* BS_USERBUTTON */
82 CB_Paint, /* BS_AUTORADIOBUTTON */
83 NULL, /* Not defined */
84 OB_Paint /* BS_OWNERDRAW */
85 };
86
87 #define PAINT_BUTTON(wndPtr,style,action) \
88 if (btnPaintFunc[style]) { \
89 HDC hdc = GetDC( (wndPtr)->hwndSelf ); \
90 (btnPaintFunc[style])(wndPtr,hdc,action); \
91 ReleaseDC( (wndPtr)->hwndSelf, hdc ); }
92
93 #define BUTTON_SEND_CTLCOLOR(wndPtr,hdc) \
94 SendMessageW( GetParent((wndPtr)->hwndSelf), WM_CTLCOLORBTN, \
95 (hdc), (wndPtr)->hwndSelf )
96
97 static HBITMAP hbitmapCheckBoxes = 0;
98 static WORD checkBoxWidth = 0, checkBoxHeight = 0;
99
100
101 /*********************************************************************
102 * button class descriptor
103 */
104 const struct builtin_class_descr BUTTON_builtin_class =
105 {
106 "Button", /* name */
107 CS_GLOBALCLASS | CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW | CS_PARENTDC, /* style */
108 ButtonWndProcA, /* procA */
109 ButtonWndProcW, /* procW */
110 sizeof(BUTTONINFO), /* extra */
111 IDC_ARROWA, /* cursor */
112 0 /* brush */
113 };
114
115
116 /***********************************************************************
117 * ButtonWndProc_locked
118 *
119 * Called with window lock held.
120 */
121 static inline LRESULT WINAPI ButtonWndProc_locked(WND* wndPtr, UINT uMsg,
122 WPARAM wParam, LPARAM lParam, BOOL unicode )
123 {
124 RECT rect;
125 HWND hWnd = wndPtr->hwndSelf;
126 POINT pt;
127 BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
128 LONG style = wndPtr->dwStyle & 0x0f;
129 HANDLE oldHbitmap;
130
131 pt.x = LOWORD(lParam);
132 pt.y = HIWORD(lParam);
133
134 switch (uMsg)
135 {
136 case WM_GETDLGCODE:
137 switch(style)
138 {
139 case BS_PUSHBUTTON: return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON;
140 case BS_DEFPUSHBUTTON: return DLGC_BUTTON | DLGC_DEFPUSHBUTTON;
141 case BS_RADIOBUTTON:
142 case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON;
143 default: return DLGC_BUTTON;
144 }
145
146 case WM_ENABLE:
147 PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
148 break;
149
150 case WM_CREATE:
151 if (!hbitmapCheckBoxes)
152 {
153 BITMAP bmp;
154 hbitmapCheckBoxes = LoadBitmapW(0, MAKEINTRESOURCEW(OBM_CHECKBOXES));
155 GetObjectW( hbitmapCheckBoxes, sizeof(bmp), &bmp );
156 checkBoxWidth = bmp.bmWidth / 4;
157 checkBoxHeight = bmp.bmHeight / 3;
158 }
159 if (style < 0L || style >= MAX_BTN_TYPE)
160 return -1; /* abort */
161 infoPtr->state = BUTTON_UNCHECKED;
162 infoPtr->hFont = 0;
163 infoPtr->hImage = 0;
164 return 0;
165
166 case WM_ERASEBKGND:
167 return 1;
168
169 case WM_PAINT:
170 if (btnPaintFunc[style])
171 {
172 PAINTSTRUCT ps;
173 HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps );
174 int nOldMode = SetBkMode( hdc, OPAQUE );
175 (btnPaintFunc[style])( wndPtr, hdc, ODA_DRAWENTIRE );
176 SetBkMode(hdc, nOldMode); /* reset painting mode */
177 if( !wParam ) EndPaint( hWnd, &ps );
178 }
179 break;
180
181 case WM_KEYDOWN:
182 if (wParam == VK_SPACE)
183 {
184 SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
185 infoPtr->state |= BUTTON_BTNPRESSED;
186 }
187 break;
188
189 case WM_LBUTTONDBLCLK:
190 if(wndPtr->dwStyle & BS_NOTIFY ||
191 style==BS_RADIOBUTTON ||
192 style==BS_USERBUTTON ||
193 style==BS_OWNERDRAW) {
194 SendMessageW( GetParent(hWnd), WM_COMMAND,
195 MAKEWPARAM( wndPtr->wIDmenu, BN_DOUBLECLICKED ), hWnd);
196 break;
197 }
198 /* fall through */
199 case WM_LBUTTONDOWN:
200 SetCapture( hWnd );
201 SetFocus( hWnd );
202 SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 );
203 infoPtr->state |= BUTTON_BTNPRESSED;
204 break;
205
206 case WM_KEYUP:
207 if (wParam != VK_SPACE)
208 break;
209 /* fall through */
210 case WM_LBUTTONUP:
211 if (!(infoPtr->state & BUTTON_BTNPRESSED)) break;
212 infoPtr->state &= BUTTON_NSTATES;
213 if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) {
214 ReleaseCapture();
215 break;
216 }
217 SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
218 ReleaseCapture();
219 GetClientRect( hWnd, &rect );
220 if (uMsg == WM_KEYUP || PtInRect( &rect, pt ))
221 {
222 switch(style)
223 {
224 case BS_AUTOCHECKBOX:
225 SendMessageW( hWnd, BM_SETCHECK,
226 !(infoPtr->state & BUTTON_CHECKED), 0 );
227 break;
228 case BS_AUTORADIOBUTTON:
229 SendMessageW( hWnd, BM_SETCHECK, TRUE, 0 );
230 break;
231 case BS_AUTO3STATE:
232 SendMessageW( hWnd, BM_SETCHECK,
233 (infoPtr->state & BUTTON_3STATE) ? 0 :
234 ((infoPtr->state & 3) + 1), 0 );
235 break;
236 }
237 SendMessageW( GetParent(hWnd), WM_COMMAND,
238 MAKEWPARAM( wndPtr->wIDmenu, BN_CLICKED ), hWnd);
239 }
240 break;
241
242 case WM_CAPTURECHANGED:
243 if (infoPtr->state & BUTTON_BTNPRESSED) {
244 infoPtr->state &= BUTTON_NSTATES;
245 if (infoPtr->state & BUTTON_HIGHLIGHTED)
246 SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 );
247 }
248 break;
249
250 case WM_MOUSEMOVE:
251 if (GetCapture() == hWnd)
252 {
253 GetClientRect( hWnd, &rect );
254 SendMessageW( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 );
255 }
256 break;
257
258 case WM_SETTEXT:
259 if (unicode) DEFWND_SetTextW( wndPtr, (LPCWSTR)lParam );
260 else DEFWND_SetTextA( wndPtr, (LPCSTR)lParam );
261 if( wndPtr->dwStyle & WS_VISIBLE )
262 PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
263 return 1; /* success. FIXME: check text length */
264
265 case WM_SETFONT:
266 infoPtr->hFont = (HFONT16)wParam;
267 if (lParam && (wndPtr->dwStyle & WS_VISIBLE))
268 PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
269 break;
270
271 case WM_GETFONT:
272 return infoPtr->hFont;
273
274 case WM_SETFOCUS:
275 if ((style == BS_RADIOBUTTON || style == BS_AUTORADIOBUTTON) && (GetCapture() != hWnd) &&
276 !(SendMessageW(hWnd, BM_GETCHECK, 0, 0) & BST_CHECKED))
277 {
278 /* The notification is sent when the button (BS_AUTORADIOBUTTON)
279 is unchecked and the focus was not given by a mouse click. */
280 if (style == BS_AUTORADIOBUTTON)
281 SendMessageW( hWnd, BM_SETCHECK, BUTTON_CHECKED, 0 );
282 SendMessageW( GetParent(hWnd), WM_COMMAND,
283 MAKEWPARAM( wndPtr->wIDmenu, BN_CLICKED ), hWnd);
284 }
285 infoPtr->state |= BUTTON_HASFOCUS;
286 PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
287 break;
288
289 case WM_KILLFOCUS:
290 infoPtr->state &= ~BUTTON_HASFOCUS;
291 PAINT_BUTTON( wndPtr, style, ODA_FOCUS );
292 InvalidateRect( hWnd, NULL, TRUE );
293 break;
294
295 case WM_SYSCOLORCHANGE:
296 InvalidateRect( hWnd, NULL, FALSE );
297 break;
298
299 case BM_SETSTYLE16:
300 case BM_SETSTYLE:
301 if ((wParam & 0x0f) >= MAX_BTN_TYPE) break;
302 wndPtr->dwStyle = (wndPtr->dwStyle & 0xfffffff0)
303 | (wParam & 0x0000000f);
304 style = wndPtr->dwStyle & 0x0000000f;
305
306 /* Only redraw if lParam flag is set.*/
307 if (lParam)
308 PAINT_BUTTON( wndPtr, style, ODA_DRAWENTIRE );
309
310 break;
311
312 case BM_CLICK:
313 SendMessageW( hWnd, WM_LBUTTONDOWN, 0, 0 );
314 SendMessageW( hWnd, WM_LBUTTONUP, 0, 0 );
315 break;
316
317 case BM_SETIMAGE:
318 /* Check that image format confirm button style */
319 if ((wndPtr->dwStyle & (BS_BITMAP|BS_ICON)) == BS_BITMAP)
320 {
321 if (wParam != (WPARAM) IMAGE_BITMAP)
322 return (HICON)0;
323 }
324 else if ((wndPtr->dwStyle & (BS_BITMAP|BS_ICON)) == BS_ICON)
325 {
326 if (wParam != (WPARAM) IMAGE_ICON)
327 return (HICON)0;
328 } else
329 return (HICON)0;
330
331 oldHbitmap = infoPtr->hImage;
332 infoPtr->hImage = (HANDLE) lParam;
333 InvalidateRect( hWnd, NULL, FALSE );
334 return oldHbitmap;
335
336 case BM_GETIMAGE:
337 if ((wndPtr->dwStyle & (BS_BITMAP|BS_ICON)) == BS_BITMAP)
338 {
339 if (wParam != (WPARAM) IMAGE_BITMAP)
340 return (HICON)0;
341 }
342 else if ((wndPtr->dwStyle & (BS_BITMAP|BS_ICON)) == BS_ICON)
343 {
344 if (wParam != (WPARAM) IMAGE_ICON)
345 return (HICON)0;
346 } else
347 return (HICON)0;
348 return infoPtr->hImage;
349
350 case BM_GETCHECK16:
351 case BM_GETCHECK:
352 return infoPtr->state & 3;
353
354 case BM_SETCHECK16:
355 case BM_SETCHECK:
356 if (wParam > maxCheckState[style]) wParam = maxCheckState[style];
357 if ((infoPtr->state & 3) != wParam)
358 {
359 if ((style == BS_RADIOBUTTON) || (style == BS_AUTORADIOBUTTON))
360 {
361 if (wParam)
362 wndPtr->dwStyle |= WS_TABSTOP;
363 else
364 wndPtr->dwStyle &= ~WS_TABSTOP;
365 }
366 infoPtr->state = (infoPtr->state & ~3) | wParam;
367 PAINT_BUTTON( wndPtr, style, ODA_SELECT );
368 }
369 if ((style == BS_AUTORADIOBUTTON) && (wParam == BUTTON_CHECKED))
370 BUTTON_CheckAutoRadioButton( wndPtr );
371 break;
372
373 case BM_GETSTATE16:
374 case BM_GETSTATE:
375 return infoPtr->state;
376
377 case BM_SETSTATE16:
378 case BM_SETSTATE:
379 if (wParam)
380 {
381 if (infoPtr->state & BUTTON_HIGHLIGHTED) break;
382 infoPtr->state |= BUTTON_HIGHLIGHTED;
383 }
384 else
385 {
386 if (!(infoPtr->state & BUTTON_HIGHLIGHTED)) break;
387 infoPtr->state &= ~BUTTON_HIGHLIGHTED;
388 }
389 PAINT_BUTTON( wndPtr, style, ODA_SELECT );
390 break;
391
392 case WM_NCHITTEST:
393 if(style == BS_GROUPBOX) return HTTRANSPARENT;
394 /* fall through */
395 default:
396 return unicode ? DefWindowProcW(hWnd, uMsg, wParam, lParam) :
397 DefWindowProcA(hWnd, uMsg, wParam, lParam);
398 }
399 return 0;
400 }
401
402 /***********************************************************************
403 * ButtonWndProcW
404 * The button window procedure. This is just a wrapper which locks
405 * the passed HWND and calls the real window procedure (with a WND*
406 * pointer pointing to the locked windowstructure).
407 */
408 static LRESULT WINAPI ButtonWndProcW( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
409 {
410 LRESULT res;
411 WND *wndPtr = WIN_FindWndPtr(hWnd);
412
413 res = ButtonWndProc_locked(wndPtr,uMsg,wParam,lParam,TRUE);
414
415 WIN_ReleaseWndPtr(wndPtr);
416 return res;
417 }
418
419
420 /***********************************************************************
421 * ButtonWndProcA
422 */
423 static LRESULT WINAPI ButtonWndProcA( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
424 {
425 LRESULT res;
426 WND *wndPtr = WIN_FindWndPtr(hWnd);
427
428 res = ButtonWndProc_locked(wndPtr,uMsg,wParam,lParam,FALSE);
429
430 WIN_ReleaseWndPtr(wndPtr);
431 return res;
432 }
433
434
435 /**********************************************************************
436 * Push Button Functions
437 */
438 static void PB_Paint( WND *wndPtr, HDC hDC, WORD action )
439 {
440 BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
441 BOOL bHighLighted = (infoPtr->state & BUTTON_HIGHLIGHTED);
442
443 /*
444 * Delegate this to the more generic pushbutton painting
445 * method.
446 */
447 BUTTON_DrawPushButton(wndPtr,
448 hDC,
449 action,
450 bHighLighted);
451 }
452
453 /**********************************************************************
454 * Convert button styles to flags used by DrawText.
455 * TODO: handle WS_EX_RIGHT extended style.
456 */
457 static UINT BUTTON_BStoDT(DWORD style)
458 {
459 UINT dtStyle = DT_NOCLIP; /* We use SelectClipRgn to limit output */
460
461 /* "Convert" pushlike buttons to pushbuttons */
462 if (style & BS_PUSHLIKE)
463 style &= ~0x0F;
464
465 if (!(style & BS_MULTILINE))
466 dtStyle |= DT_SINGLELINE;
467 else
468 dtStyle |= DT_WORDBREAK;
469
470 switch (style & BS_CENTER)
471 {
472 case BS_LEFT: /* DT_LEFT is 0 */ break;
473 case BS_RIGHT: dtStyle |= DT_RIGHT; break;
474 case BS_CENTER: dtStyle |= DT_CENTER; break;
475 default:
476 /* Pushbutton's text is centered by default */
477 if ((style & 0x0F) <= BS_DEFPUSHBUTTON)
478 dtStyle |= DT_CENTER;
479 /* all other flavours have left aligned text */
480 }
481
482 /* DrawText ignores vertical alignment for multiline text,
483 * but we use these flags to align label manualy.
484 */
485 if ((style & 0x0F) != BS_GROUPBOX)
486 {
487 switch (style & BS_VCENTER)
488 {
489 case BS_TOP: /* DT_TOP is 0 */ break;
490 case BS_BOTTOM: dtStyle |= DT_BOTTOM; break;
491 case BS_VCENTER: /* fall through */
492 default: dtStyle |= DT_VCENTER; break;
493 }
494 }
495 else
496 /* GroupBox's text is always single line and is top aligned. */
497 dtStyle |= DT_SINGLELINE;
498
499 return dtStyle;
500 }
501
502 /**********************************************************************
503 * BUTTON_CalcLabelRect
504 *
505 * Calculates label's rectangle depending on button style.
506 *
507 * Returns flags to be passed to DrawText.
508 * Calculated rectangle doesn't take into account button state
509 * (pushed, etc.). If there is nothing to draw (no text/image) output
510 * rectangle is empty, and return value is (UINT)-1.
511 */
512 static UINT BUTTON_CalcLabelRect(WND *wndPtr, HDC hdc, RECT *rc)
513 {
514 BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
515 ICONINFO iconInfo;
516 BITMAP bm;
517 UINT dtStyle = BUTTON_BStoDT(wndPtr->dwStyle);
518 RECT r = *rc;
519 INT n;
520
521 /* Calculate label rectangle according to label type */
522 switch (wndPtr->dwStyle & (BS_ICON|BS_BITMAP))
523 {
524 case BS_TEXT:
525 if (wndPtr->text && wndPtr->text[0])
526 DrawTextW(hdc, wndPtr->text, -1, &r, dtStyle | DT_CALCRECT);
527 else
528 goto empty_rect;
529 break;
530
531 case BS_ICON:
532 if (!GetIconInfo((HICON)infoPtr->hImage, &iconInfo))
533 goto empty_rect;
534
535 GetObjectW (iconInfo.hbmColor, sizeof(BITMAP), &bm);
536
537 r.right = r.left + bm.bmWidth;
538 r.bottom = r.top + bm.bmHeight;
539
540 DeleteObject(iconInfo.hbmColor);
541 DeleteObject(iconInfo.hbmMask);
542 break;
543
544 case BS_BITMAP:
545 if (!GetObjectW (infoPtr->hImage, sizeof(BITMAP), &bm))
546 goto empty_rect;
547
548 r.right = r.left + bm.bmWidth;
549 r.bottom = r.top + bm.bmHeight;
550 break;
551
552 default:
553 empty_rect:
554 r.right = r.left;
555 r.bottom = r.top;
556 return (UINT)(LONG)-1;
557 }
558
559 /* Position label inside bounding rectangle according to
560 * alignment flags. (calculated rect is always left-top aligned).
561 * If label is aligned to any side - shift label in opposite
562 * direction to leave extra space for focus rectangle.
563 */
564 switch (dtStyle & (DT_CENTER|DT_RIGHT))
565 {
566 case DT_LEFT: r.left++; r.right++; break;
567 case DT_CENTER: n = r.right - r.left;
568 r.left = rc->left + ((rc->right - rc->left) - n) / 2;
569 r.right = r.left + n; break;
570 case DT_RIGHT: n = r.right - r.left;
571 r.right = rc->right - 1;
572 r.left = r.right - n;
573 break;
574 }
575
576 switch (dtStyle & (DT_VCENTER|DT_BOTTOM))
577 {
578 case DT_TOP: r.top++; r.bottom++; break;
579 case DT_VCENTER: n = r.bottom - r.top;
580 r.top = rc->top + ((rc->bottom - rc->top) - n) / 2;
581 r.bottom = r.top + n; break;
582 case DT_BOTTOM: n = r.bottom - r.top;
583 r.bottom = rc->bottom - 1;
584 r.top = r.bottom - n;
585 break;
586 }
587
588 *rc = r;
589 return dtStyle;
590 }
591
592
593 /**********************************************************************
594 * BUTTON_DrawTextCallback
595 *
596 * Callback function used by DrawStateW function.
597 */
598 static BOOL CALLBACK BUTTON_DrawTextCallback(HDC hdc, LPARAM lp, WPARAM wp, int cx, int cy)
599 {
600 RECT rc;
601 rc.left = 0;
602 rc.top = 0;
603 rc.right = cx;
604 rc.bottom = cy;
605
606 DrawTextW(hdc, (LPCWSTR)lp, -1, &rc, (UINT)wp);
607 return TRUE;
608 }
609
610
611 /**********************************************************************
612 * BUTTON_DrawLabel
613 *
614 * Common function for drawing button label.
615 */
616 static void BUTTON_DrawLabel(WND *wndPtr, HDC hdc, UINT dtFlags, RECT *rc)
617 {
618 BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
619 DRAWSTATEPROC lpOutputProc = NULL;
620 LPARAM lp;
621 WPARAM wp = 0;
622 HBRUSH hbr = 0;
623 UINT flags = IsWindowEnabled(wndPtr->hwndSelf) ? DSS_NORMAL : DSS_DISABLED;
624
625 /* Fixme: To draw disabled label in Win31 look-and-feel, we probably
626 * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION).
627 * I don't have Win31 on hand to verify that, so I leave it as is.
628 */
629
630 if ((wndPtr->dwStyle & BS_PUSHLIKE) && (infoPtr->state & BUTTON_3STATE))
631 {
632 hbr = GetSysColorBrush(COLOR_GRAYTEXT);
633 flags |= DSS_MONO;
634 }
635
636 switch (wndPtr->dwStyle & (BS_ICON|BS_BITMAP))
637 {
638 case BS_TEXT:
639 /* DST_COMPLEX -- is 0 */
640 lpOutputProc = BUTTON_DrawTextCallback;
641 lp = (LPARAM)wndPtr->text;
642 wp = (WPARAM)dtFlags;
643 break;
644
645 case BS_ICON:
646 flags |= DST_ICON;
647 lp = (LPARAM)infoPtr->hImage;
648 break;
649
650 case BS_BITMAP:
651 flags |= DST_BITMAP;
652 lp = (LPARAM)infoPtr->hImage;
653 break;
654
655 default:
656 return;
657 }
658
659 DrawStateW(hdc, hbr, lpOutputProc, lp, wp, rc->left, rc->top,
660 rc->right - rc->left, rc->bottom - rc->top, flags);
661 }
662
663 /**********************************************************************
664 * This method will actually do the drawing of the pushbutton
665 * depending on it's state and the pushedState parameter.
666 */
667 static void BUTTON_DrawPushButton(
668 WND* wndPtr,
669 HDC hDC,
670 WORD action,
671 BOOL pushedState )
672 {
673 BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
674 RECT rc, focus_rect, r;
675 UINT dtFlags;
676 HRGN hRgn;
677 HPEN hOldPen;
678 HBRUSH hOldBrush;
679 INT oldBkMode;
680 COLORREF oldTxtColor;
681
682 GetClientRect( wndPtr->hwndSelf, &rc );
683
684 /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
685 if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
686 BUTTON_SEND_CTLCOLOR( wndPtr, hDC );
687 hOldPen = (HPEN)SelectObject(hDC, GetSysColorPen(COLOR_WINDOWFRAME));
688 hOldBrush =(HBRUSH)SelectObject(hDC,GetSysColorBrush(COLOR_BTNFACE));
689 oldBkMode = SetBkMode(hDC, TRANSPARENT);
690
691 if ( TWEAK_WineLook == WIN31_LOOK)
692 {
693 COLORREF clr_wnd = GetSysColor(COLOR_WINDOW);
694 Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
695
696 SetPixel( hDC, rc.left, rc.top, clr_wnd);
697 SetPixel( hDC, rc.left, rc.bottom-1, clr_wnd);
698 SetPixel( hDC, rc.right-1, rc.top, clr_wnd);
699 SetPixel( hDC, rc.right-1, rc.bottom-1, clr_wnd);
700 InflateRect( &rc, -1, -1 );
701 }
702
703 if ((wndPtr->dwStyle & 0x000f) == BS_DEFPUSHBUTTON)
704 {
705 Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom);
706 InflateRect( &rc, -1, -1 );
707 }
708
709 if (TWEAK_WineLook == WIN31_LOOK)
710 {
711 if (pushedState)
712 {
713 /* draw button shadow: */
714 SelectObject(hDC, GetSysColorBrush(COLOR_BTNSHADOW));
715 PatBlt(hDC, rc.left, rc.top, 1, rc.bottom-rc.top, PATCOPY );
716 PatBlt(hDC, rc.left, rc.top, rc.right-rc.left, 1, PATCOPY );
717 } else {
718 rc.right++, rc.bottom++;
719 DrawEdge( hDC, &rc, EDGE_RAISED, BF_RECT );
720 rc.right--, rc.bottom--;
721 }
722 }
723 else
724 {
725 UINT uState = DFCS_BUTTONPUSH | DFCS_ADJUSTRECT;
726
727 if (wndPtr->dwStyle & BS_FLAT)
728 uState |= DFCS_MONO;
729 else if (pushedState)
730 {
731 if ( (wndPtr->dwStyle & 0x000f) == BS_DEFPUSHBUTTON )
732 uState |= DFCS_FLAT;
733 else
734 uState |= DFCS_PUSHED;
735 }
736
737 if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE))
738 uState |= DFCS_CHECKED;
739
740 DrawFrameControl( hDC, &rc, DFC_BUTTON, uState );
741
742 focus_rect = rc;
743 }
744
745 /* draw button label */
746 r = rc;
747 dtFlags = BUTTON_CalcLabelRect(wndPtr, hDC, &r);
748
749 if (dtFlags == (UINT)-1L)
750 goto cleanup;
751
752 if (pushedState)
753 OffsetRect(&r, 1, 1);
754
755 if(TWEAK_WineLook == WIN31_LOOK)
756 {
757 focus_rect = r;
758 InflateRect(&focus_rect, 2, 0);
759 }
760
761 hRgn = CreateRectRgn(rc.left, rc.top, rc.right, rc.bottom);
762 SelectClipRgn(hDC, hRgn);
763
764 oldTxtColor = SetTextColor( hDC, GetSysColor(COLOR_BTNTEXT) );
765
766 BUTTON_DrawLabel(wndPtr, hDC, dtFlags, &r);
767
768 SetTextColor( hDC, oldTxtColor );
769 SelectClipRgn(hDC, 0);
770 DeleteObject(hRgn);
771
772 if (infoPtr->state & BUTTON_HASFOCUS)
773 {
774 InflateRect( &focus_rect, -1, -1 );
775 IntersectRect(&focus_rect, &focus_rect, &rc);
776 DrawFocusRect( hDC, &focus_rect );
777 }
778
779 cleanup:
780 SelectObject( hDC, hOldPen );
781 SelectObject( hDC, hOldBrush );
782 SetBkMode(hDC, oldBkMode);
783 }
784
785 /**********************************************************************
786 * Check Box & Radio Button Functions
787 */
788
789 static void CB_Paint( WND *wndPtr, HDC hDC, WORD action )
790 {
791 RECT rbox, rtext, client;
792 HBRUSH hBrush;
793 int delta;
794 BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
795 UINT dtFlags;
796 HRGN hRgn;
797
798 if (wndPtr->dwStyle & BS_PUSHLIKE)
799 {
800 BOOL bHighLighted = (infoPtr->state & BUTTON_HIGHLIGHTED);
801
802 BUTTON_DrawPushButton(wndPtr,
803 hDC,
804 action,
805 bHighLighted);
806 return;
807 }
808
809 GetClientRect(wndPtr->hwndSelf, &client);
810 rbox = rtext = client;
811
812 if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
813
814 /* GetControlBrush16 sends WM_CTLCOLORBTN, plus it returns default brush
815 * if parent didn't return valid one. So we kill two hares at once
816 */
817 hBrush = GetControlBrush16( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
818
819 if (wndPtr->dwStyle & BS_LEFTTEXT)
820 {
821 /* magic +4 is what CTL3D expects */
822
823 rtext.right -= checkBoxWidth + 4;
824 rbox.left = rbox.right - checkBoxWidth;
825 }
826 else
827 {
828 rtext.left += checkBoxWidth + 4;
829 rbox.right = checkBoxWidth;
830 }
831
832 /* Draw the check-box bitmap */
833 if (action == ODA_DRAWENTIRE || action == ODA_SELECT)
834 {
835 /* Since WM_ERASEBKGND does nothing, first prepare background */
836 if (action == ODA_SELECT) FillRect( hDC, &rbox, hBrush );
837 else FillRect( hDC, &client, hBrush );
838
839 if( TWEAK_WineLook == WIN31_LOOK )
840 {
841 HDC hMemDC = CreateCompatibleDC( hDC );
842 int x = 0, y = 0;
843 delta = (rbox.bottom - rbox.top - checkBoxHeight) / 2;
844
845 /* Check in case the client area is smaller than the checkbox bitmap */
846 if (delta < 0) delta = 0;
847
848 if (infoPtr->state & BUTTON_HIGHLIGHTED) x += 2 * checkBoxWidth;
849 if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE)) x += checkBoxWidth;
850 if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
851 ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON)) y += checkBoxHeight;
852 else if (infoPtr->state & BUTTON_3STATE) y += 2 * checkBoxHeight;
853
854 /* The bitmap for the radio button is not aligned with the
855 * left of the window, it is 1 pixel off. */
856 if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
857 ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON))
858 rbox.left += 1;
859
860 SelectObject( hMemDC, hbitmapCheckBoxes );
861 BitBlt( hDC, rbox.left, rbox.top + delta, checkBoxWidth,
862 checkBoxHeight, hMemDC, x, y, SRCCOPY );
863 DeleteDC( hMemDC );
864 }
865 else
866 {
867 UINT state;
868
869 if (((wndPtr->dwStyle & 0x0f) == BS_RADIOBUTTON) ||
870 ((wndPtr->dwStyle & 0x0f) == BS_AUTORADIOBUTTON)) state = DFCS_BUTTONRADIO;
871 else if (infoPtr->state & BUTTON_3STATE) state = DFCS_BUTTON3STATE;
872 else state = DFCS_BUTTONCHECK;
873
874 if (infoPtr->state & (BUTTON_CHECKED | BUTTON_3STATE)) state |= DFCS_CHECKED;
875
876 if (infoPtr->state & BUTTON_HIGHLIGHTED) state |= DFCS_PUSHED;
877
878 if (wndPtr->dwStyle & WS_DISABLED) state |= DFCS_INACTIVE;
879
880 /* rbox must have the correct height */
881 delta = rbox.bottom - rbox.top - checkBoxHeight;
882 if (delta > 0)
883 {
884 int ofs = (abs(delta) / 2);
885 rbox.bottom -= ofs + 1;
886 rbox.top = rbox.bottom - checkBoxHeight;
887 }
888 else if (delta < 0)
889 {
890 int ofs = (abs(delta) / 2);
891 rbox.top -= ofs + 1;
892 rbox.bottom = rbox.top + checkBoxHeight;
893 }
894
895 DrawFrameControl( hDC, &rbox, DFC_BUTTON, state );
896 }
897 }
898
899 /* Draw label */
900 client = rtext;
901 dtFlags = BUTTON_CalcLabelRect(wndPtr, hDC, &rtext);
902
903 if (dtFlags == (UINT)-1L) /* Noting to draw */
904 return;
905 hRgn = CreateRectRgn(client.left, client.top, client.right, client.bottom);
906 SelectClipRgn(hDC, hRgn);
907 DeleteObject(hRgn);
908
909 if (action == ODA_DRAWENTIRE)
910 BUTTON_DrawLabel(wndPtr, hDC, dtFlags, &rtext);
911
912 /* ... and focus */
913 if ((action == ODA_FOCUS) ||
914 ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
915 {
916 rtext.left--;
917 rtext.right++;
918 IntersectRect(&rtext, &rtext, &client);
919 DrawFocusRect( hDC, &rtext );
920 }
921 SelectClipRgn(hDC, 0);
922 }
923
924
925 /**********************************************************************
926 * BUTTON_CheckAutoRadioButton
927 *
928 * wndPtr is checked, uncheck every other auto radio button in group
929 */
930 static void BUTTON_CheckAutoRadioButton( WND *wndPtr )
931 {
932 HWND parent, sibling, start;
933 if (!(wndPtr->dwStyle & WS_CHILD)) return;
934 parent = wndPtr->parent->hwndSelf;
935 /* assure that starting control is not disabled or invisible */
936 start = sibling = GetNextDlgGroupItem( parent, wndPtr->hwndSelf, TRUE );
937 do
938 {
939 WND *tmpWnd;
940 if (!sibling) break;
941 tmpWnd = WIN_FindWndPtr(sibling);
942 if ((wndPtr->hwndSelf != sibling) &&
943 ((tmpWnd->dwStyle & 0x0f) == BS_AUTORADIOBUTTON))
944 SendMessageW( sibling, BM_SETCHECK, BUTTON_UNCHECKED, 0 );
945 sibling = GetNextDlgGroupItem( parent, sibling, FALSE );
946 WIN_ReleaseWndPtr(tmpWnd);
947 } while (sibling != start);
948 }
949
950
951 /**********************************************************************
952 * Group Box Functions
953 */
954
955 static void GB_Paint( WND *wndPtr, HDC hDC, WORD action )
956 {
957 RECT rc, rcFrame;
958 BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
959 HBRUSH hbr;
960 UINT dtFlags;
961
962 if (action != ODA_DRAWENTIRE) return;
963
964 if (infoPtr->hFont)
965 SelectObject (hDC, infoPtr->hFont);
966 /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
967 hbr = GetControlBrush16( wndPtr->hwndSelf, hDC, CTLCOLOR_STATIC );
968
969
970 GetClientRect( wndPtr->hwndSelf, &rc);
971 if (TWEAK_WineLook == WIN31_LOOK) {
972 HPEN hPrevPen = SelectObject( hDC,
973 GetSysColorPen(COLOR_WINDOWFRAME));
974 HBRUSH hPrevBrush = SelectObject( hDC,
975 GetStockObject(NULL_BRUSH) );
976
977 Rectangle( hDC, rc.left, rc.top + 2, rc.right - 1, rc.bottom - 1 );
978 SelectObject( hDC, hPrevBrush );
979 SelectObject( hDC, hPrevPen );
980 } else {
981 TEXTMETRICW tm;
982 rcFrame = rc;
983
984 GetTextMetricsW (hDC, &tm);
985 rcFrame.top += (tm.tmHeight / 2) - 1;
986 DrawEdge (hDC, &rcFrame, EDGE_ETCHED, BF_RECT |
987 ((wndPtr->dwStyle & BS_FLAT) ? BF_FLAT : 0));
988 }
989
990 InflateRect(&rc, -7, 1);
991 dtFlags = BUTTON_CalcLabelRect(wndPtr, hDC, &rc);
992
993 if (dtFlags == (UINT)-1L)
994 return;
995
996 /* Because buttons have CS_PARENTDC class style, there is a chance
997 * that label will be drawn out of client rect.
998 * But Windows doesn't clip label's rect, so do I.
999 */
1000
1001 /* There is 1-pixel marging at the left, right, and bottom */
1002 rc.left--; rc.right++; rc.bottom++;
1003 FillRect(hDC, &rc, hbr);
1004 rc.left++; rc.right--; rc.bottom--;
1005
1006 BUTTON_DrawLabel(wndPtr, hDC, dtFlags, &rc);
1007 }
1008
1009
1010 /**********************************************************************
1011 * User Button Functions
1012 */
1013
1014 static void UB_Paint( WND *wndPtr, HDC hDC, WORD action )
1015 {
1016 RECT rc;
1017 HBRUSH hBrush;
1018 BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
1019
1020 if (action == ODA_SELECT) return;
1021
1022 GetClientRect( wndPtr->hwndSelf, &rc);
1023
1024 if (infoPtr->hFont) SelectObject( hDC, infoPtr->hFont );
1025 hBrush = GetControlBrush16( wndPtr->hwndSelf, hDC, CTLCOLOR_BTN );
1026
1027 FillRect( hDC, &rc, hBrush );
1028 if ((action == ODA_FOCUS) ||
1029 ((action == ODA_DRAWENTIRE) && (infoPtr->state & BUTTON_HASFOCUS)))
1030 DrawFocusRect( hDC, &rc );
1031 }
1032
1033
1034 /**********************************************************************
1035 * Ownerdrawn Button Functions
1036 */
1037
1038 static void OB_Paint( WND *wndPtr, HDC hDC, WORD action )
1039 {
1040 BUTTONINFO *infoPtr = (BUTTONINFO *)wndPtr->wExtra;
1041 DRAWITEMSTRUCT dis;
1042 HRGN clipRegion;
1043 RECT clipRect;
1044
1045 dis.CtlType = ODT_BUTTON;
1046 dis.CtlID = wndPtr->wIDmenu;
1047 dis.itemID = 0;
1048 dis.itemAction = action;
1049 dis.itemState = ((infoPtr->state & BUTTON_HASFOCUS) ? ODS_FOCUS : 0) |
1050 ((infoPtr->state & BUTTON_HIGHLIGHTED) ? ODS_SELECTED : 0) |
1051 (IsWindowEnabled(wndPtr->hwndSelf) ? 0: ODS_DISABLED);
1052 dis.hwndItem = wndPtr->hwndSelf;
1053 dis.hDC = hDC;
1054 dis.itemData = 0;
1055 GetClientRect( wndPtr->hwndSelf, &dis.rcItem );
1056
1057 clipRegion = CreateRectRgnIndirect(&dis.rcItem);
1058 if (GetClipRgn(hDC, clipRegion) != 1)
1059 {
1060 DeleteObject(clipRegion);
1061 clipRegion=(HRGN)NULL;
1062 }
1063 clipRect = dis.rcItem;
1064 DPtoLP(hDC, (LPPOINT) &clipRect, 2);
1065 IntersectClipRect(hDC, clipRect.left, clipRect.top, clipRect.right, clipRect.bottom);
1066
1067 SetBkColor( hDC, GetSysColor( COLOR_BTNFACE ) );
1068
1069 SendMessageW( GetParent(wndPtr->hwndSelf), WM_DRAWITEM,
1070 wndPtr->wIDmenu, (LPARAM)&dis );
1071
1072 SelectClipRgn(hDC, clipRegion);
1073 }
1074
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