1 /* File: button.c -- Button type widgets
3 * Copyright (C) 1993 Johannes Ruscheinski
4 * Copyright (C) 1993 David Metcalfe
5 * Copyright (C) 1994 Alexandre Julliard
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 * This code was audited for completeness against the documented features
24 * of Comctl32.dll version 6.0 on Oct. 3, 2004, by Dimitrie O. Paun.
26 * Unless otherwise noted, we believe this code to be complete, as per
27 * the specification mentioned above.
28 * If you discover missing features, or bugs, please note them below.
32 * - BS_NOTIFY: is it complete?
33 * - BS_RIGHTBUTTON: same as BS_LEFTTEXT
36 * - WM_CHAR: Checks a (manual or automatic) check box on '+' or '=', clears it on '-' key.
37 * - WM_SETFOCUS: For (manual or automatic) radio buttons, send the parent window BN_CLICKED
38 * - WM_NCCREATE: Turns any BS_OWNERDRAW button into a BS_PUSHBUTTON button.
49 * - BN_PUSHED/BN_HILITE
50 * + BN_KILLFOCUS: is it OK?
52 * + BN_SETFOCUS: is it OK?
53 * - BN_UNPUSHED/BN_UNHILITE
56 * Structures/Macros/Definitions
59 * - Button_GetIdealSize
60 * - Button_GetImageList
61 * - Button_GetTextMargin
62 * - Button_SetImageList
63 * - Button_SetTextMargin
77 #include "user_private.h"
78 #include "wine/debug.h"
80 WINE_DEFAULT_DEBUG_CHANNEL(button
);
82 /* GetWindowLong offsets for window extra information */
83 #define STATE_GWL_OFFSET 0
84 #define HFONT_GWL_OFFSET (sizeof(LONG))
85 #define HIMAGE_GWL_OFFSET (HFONT_GWL_OFFSET+sizeof(HFONT))
86 #define NB_EXTRA_BYTES (HIMAGE_GWL_OFFSET+sizeof(HANDLE))
88 /* Button state values */
89 #define BUTTON_UNCHECKED 0x00
90 #define BUTTON_CHECKED 0x01
91 #define BUTTON_3STATE 0x02
92 #define BUTTON_HIGHLIGHTED 0x04
93 #define BUTTON_HASFOCUS 0x08
94 #define BUTTON_NSTATES 0x0F
95 /* undocumented flags */
96 #define BUTTON_BTNPRESSED 0x40
97 #define BUTTON_UNKNOWN2 0x20
98 #define BUTTON_UNKNOWN3 0x10
100 #define BUTTON_NOTIFY_PARENT(hWnd, code) \
101 do { /* Notify parent which has created this button control */ \
102 TRACE("notification " #code " sent to hwnd=%p\n", GetParent(hWnd)); \
103 SendMessageW(GetParent(hWnd), WM_COMMAND, \
104 MAKEWPARAM(GetWindowLongPtrW((hWnd),GWLP_ID), (code)), \
108 static UINT
BUTTON_CalcLabelRect( HWND hwnd
, HDC hdc
, RECT
*rc
);
109 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
110 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
111 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
112 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
113 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
114 static void BUTTON_CheckAutoRadioButton( HWND hwnd
);
116 #define MAX_BTN_TYPE 16
118 static const WORD maxCheckState
[MAX_BTN_TYPE
] =
120 BUTTON_UNCHECKED
, /* BS_PUSHBUTTON */
121 BUTTON_UNCHECKED
, /* BS_DEFPUSHBUTTON */
122 BUTTON_CHECKED
, /* BS_CHECKBOX */
123 BUTTON_CHECKED
, /* BS_AUTOCHECKBOX */
124 BUTTON_CHECKED
, /* BS_RADIOBUTTON */
125 BUTTON_3STATE
, /* BS_3STATE */
126 BUTTON_3STATE
, /* BS_AUTO3STATE */
127 BUTTON_UNCHECKED
, /* BS_GROUPBOX */
128 BUTTON_UNCHECKED
, /* BS_USERBUTTON */
129 BUTTON_CHECKED
, /* BS_AUTORADIOBUTTON */
130 BUTTON_UNCHECKED
, /* BS_PUSHBOX */
131 BUTTON_UNCHECKED
/* BS_OWNERDRAW */
134 typedef void (*pfPaint
)( HWND hwnd
, HDC hdc
, UINT action
);
136 static const pfPaint btnPaintFunc
[MAX_BTN_TYPE
] =
138 PB_Paint
, /* BS_PUSHBUTTON */
139 PB_Paint
, /* BS_DEFPUSHBUTTON */
140 CB_Paint
, /* BS_CHECKBOX */
141 CB_Paint
, /* BS_AUTOCHECKBOX */
142 CB_Paint
, /* BS_RADIOBUTTON */
143 CB_Paint
, /* BS_3STATE */
144 CB_Paint
, /* BS_AUTO3STATE */
145 GB_Paint
, /* BS_GROUPBOX */
146 UB_Paint
, /* BS_USERBUTTON */
147 CB_Paint
, /* BS_AUTORADIOBUTTON */
148 NULL
, /* BS_PUSHBOX */
149 OB_Paint
/* BS_OWNERDRAW */
152 static HBITMAP hbitmapCheckBoxes
= 0;
153 static WORD checkBoxWidth
= 0, checkBoxHeight
= 0;
156 /*********************************************************************
157 * button class descriptor
159 static const WCHAR buttonW
[] = {'B','u','t','t','o','n',0};
160 const struct builtin_class_descr BUTTON_builtin_class
=
163 CS_DBLCLKS
| CS_VREDRAW
| CS_HREDRAW
| CS_PARENTDC
, /* style */
164 WINPROC_BUTTON
, /* proc */
165 NB_EXTRA_BYTES
, /* extra */
166 IDC_ARROW
, /* cursor */
171 static inline LONG
get_button_state( HWND hwnd
)
173 return GetWindowLongW( hwnd
, STATE_GWL_OFFSET
);
176 static inline void set_button_state( HWND hwnd
, LONG state
)
178 SetWindowLongW( hwnd
, STATE_GWL_OFFSET
, state
);
181 static inline HFONT
get_button_font( HWND hwnd
)
183 return (HFONT
)GetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
);
186 static inline void set_button_font( HWND hwnd
, HFONT font
)
188 SetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
, (LONG_PTR
)font
);
191 static inline UINT
get_button_type( LONG window_style
)
193 return (window_style
& BS_TYPEMASK
);
196 /* paint a button of any type */
197 static inline void paint_button( HWND hwnd
, LONG style
, UINT action
)
199 if (btnPaintFunc
[style
] && IsWindowVisible(hwnd
))
201 HDC hdc
= GetDC( hwnd
);
202 btnPaintFunc
[style
]( hwnd
, hdc
, action
);
203 ReleaseDC( hwnd
, hdc
);
207 /* retrieve the button text; returned buffer must be freed by caller */
208 static inline WCHAR
*get_button_text( HWND hwnd
)
211 WCHAR
*buffer
= HeapAlloc( GetProcessHeap(), 0, (len
+ 1) * sizeof(WCHAR
) );
212 if (buffer
) InternalGetWindowText( hwnd
, buffer
, len
+ 1 );
216 /***********************************************************************
217 * ButtonWndProc_common
219 LRESULT
ButtonWndProc_common(HWND hWnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
, BOOL unicode
)
223 LONG style
= GetWindowLongW( hWnd
, GWL_STYLE
);
224 UINT btn_type
= get_button_type( style
);
228 if (!IsWindow( hWnd
)) return 0;
230 pt
.x
= (short)LOWORD(lParam
);
231 pt
.y
= (short)HIWORD(lParam
);
239 case BS_PUSHBUTTON
: return DLGC_BUTTON
| DLGC_UNDEFPUSHBUTTON
;
240 case BS_DEFPUSHBUTTON
: return DLGC_BUTTON
| DLGC_DEFPUSHBUTTON
;
242 case BS_AUTORADIOBUTTON
: return DLGC_BUTTON
| DLGC_RADIOBUTTON
;
243 case BS_GROUPBOX
: return DLGC_STATIC
;
244 default: return DLGC_BUTTON
;
248 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
252 if (!hbitmapCheckBoxes
)
255 hbitmapCheckBoxes
= LoadBitmapW(0, MAKEINTRESOURCEW(OBM_CHECKBOXES
));
256 GetObjectW( hbitmapCheckBoxes
, sizeof(bmp
), &bmp
);
257 checkBoxWidth
= bmp
.bmWidth
/ 4;
258 checkBoxHeight
= bmp
.bmHeight
/ 3;
260 if (btn_type
>= MAX_BTN_TYPE
)
261 return -1; /* abort */
263 /* XP turns a BS_USERBUTTON into BS_PUSHBUTTON */
264 if (btn_type
== BS_USERBUTTON
)
266 style
= (style
& ~BS_TYPEMASK
) | BS_PUSHBUTTON
;
267 WIN_SetStyle( hWnd
, style
, BS_TYPEMASK
& ~style
);
269 set_button_state( hWnd
, BUTTON_UNCHECKED
);
273 if (btn_type
== BS_OWNERDRAW
)
275 HDC hdc
= (HDC
)wParam
;
278 HWND parent
= GetParent(hWnd
);
279 if (!parent
) parent
= hWnd
;
280 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hdc
, (LPARAM
)hWnd
);
281 if (!hBrush
) /* did the app forget to call defwindowproc ? */
282 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
283 (WPARAM
)hdc
, (LPARAM
)hWnd
);
284 GetClientRect(hWnd
, &rc
);
285 FillRect(hdc
, &rc
, hBrush
);
291 if (btnPaintFunc
[btn_type
])
294 HDC hdc
= wParam
? (HDC
)wParam
: BeginPaint( hWnd
, &ps
);
295 int nOldMode
= SetBkMode( hdc
, OPAQUE
);
296 (btnPaintFunc
[btn_type
])( hWnd
, hdc
, ODA_DRAWENTIRE
);
297 SetBkMode(hdc
, nOldMode
); /* reset painting mode */
298 if( !wParam
) EndPaint( hWnd
, &ps
);
303 if (wParam
== VK_SPACE
)
305 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
306 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
311 case WM_LBUTTONDBLCLK
:
312 if(style
& BS_NOTIFY
||
313 btn_type
== BS_RADIOBUTTON
||
314 btn_type
== BS_USERBUTTON
||
315 btn_type
== BS_OWNERDRAW
)
317 BUTTON_NOTIFY_PARENT(hWnd
, BN_DOUBLECLICKED
);
324 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
325 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
329 if (wParam
!= VK_SPACE
)
333 state
= get_button_state( hWnd
);
334 if (!(state
& BUTTON_BTNPRESSED
)) break;
335 state
&= BUTTON_NSTATES
;
336 set_button_state( hWnd
, state
);
337 if (!(state
& BUTTON_HIGHLIGHTED
))
342 SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
344 GetClientRect( hWnd
, &rect
);
345 if (uMsg
== WM_KEYUP
|| PtInRect( &rect
, pt
))
347 state
= get_button_state( hWnd
);
350 case BS_AUTOCHECKBOX
:
351 SendMessageW( hWnd
, BM_SETCHECK
, !(state
& BUTTON_CHECKED
), 0 );
353 case BS_AUTORADIOBUTTON
:
354 SendMessageW( hWnd
, BM_SETCHECK
, TRUE
, 0 );
357 SendMessageW( hWnd
, BM_SETCHECK
,
358 (state
& BUTTON_3STATE
) ? 0 : ((state
& 3) + 1), 0 );
361 BUTTON_NOTIFY_PARENT(hWnd
, BN_CLICKED
);
365 case WM_CAPTURECHANGED
:
366 TRACE("WM_CAPTURECHANGED %p\n", hWnd
);
367 state
= get_button_state( hWnd
);
368 if (state
& BUTTON_BTNPRESSED
)
370 state
&= BUTTON_NSTATES
;
371 set_button_state( hWnd
, state
);
372 if (state
& BUTTON_HIGHLIGHTED
) SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
377 if ((wParam
& MK_LBUTTON
) && GetCapture() == hWnd
)
379 GetClientRect( hWnd
, &rect
);
380 SendMessageW( hWnd
, BM_SETSTATE
, PtInRect(&rect
, pt
), 0 );
386 /* Clear an old text here as Windows does */
387 HDC hdc
= GetDC(hWnd
);
390 HWND parent
= GetParent(hWnd
);
392 if (!parent
) parent
= hWnd
;
393 hbrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
,
394 (WPARAM
)hdc
, (LPARAM
)hWnd
);
395 if (!hbrush
) /* did the app forget to call DefWindowProc ? */
396 hbrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
397 (WPARAM
)hdc
, (LPARAM
)hWnd
);
399 GetClientRect(hWnd
, &client
);
401 BUTTON_CalcLabelRect(hWnd
, hdc
, &rc
);
402 /* Clip by client rect bounds */
403 if (rc
.right
> client
.right
) rc
.right
= client
.right
;
404 if (rc
.bottom
> client
.bottom
) rc
.bottom
= client
.bottom
;
405 FillRect(hdc
, &rc
, hbrush
);
406 ReleaseDC(hWnd
, hdc
);
408 if (unicode
) DefWindowProcW( hWnd
, WM_SETTEXT
, wParam
, lParam
);
409 else DefWindowProcA( hWnd
, WM_SETTEXT
, wParam
, lParam
);
410 if (btn_type
== BS_GROUPBOX
) /* Yes, only for BS_GROUPBOX */
411 InvalidateRect( hWnd
, NULL
, TRUE
);
413 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
414 return 1; /* success. FIXME: check text length */
418 set_button_font( hWnd
, (HFONT
)wParam
);
419 if (lParam
) InvalidateRect(hWnd
, NULL
, TRUE
);
423 return (LRESULT
)get_button_font( hWnd
);
426 TRACE("WM_SETFOCUS %p\n",hWnd
);
427 set_button_state( hWnd
, get_button_state(hWnd
) | BUTTON_HASFOCUS
);
428 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
429 if (style
& BS_NOTIFY
)
430 BUTTON_NOTIFY_PARENT(hWnd
, BN_SETFOCUS
);
434 TRACE("WM_KILLFOCUS %p\n",hWnd
);
435 state
= get_button_state( hWnd
);
436 set_button_state( hWnd
, state
& ~BUTTON_HASFOCUS
);
437 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
439 if ((state
& BUTTON_BTNPRESSED
) && GetCapture() == hWnd
)
441 if (style
& BS_NOTIFY
)
442 BUTTON_NOTIFY_PARENT(hWnd
, BN_KILLFOCUS
);
444 InvalidateRect( hWnd
, NULL
, FALSE
);
447 case WM_SYSCOLORCHANGE
:
448 InvalidateRect( hWnd
, NULL
, FALSE
);
452 if ((wParam
& BS_TYPEMASK
) >= MAX_BTN_TYPE
) break;
453 btn_type
= wParam
& BS_TYPEMASK
;
454 style
= (style
& ~BS_TYPEMASK
) | btn_type
;
455 WIN_SetStyle( hWnd
, style
, BS_TYPEMASK
& ~style
);
457 /* Only redraw if lParam flag is set.*/
459 InvalidateRect( hWnd
, NULL
, TRUE
);
464 SendMessageW( hWnd
, WM_LBUTTONDOWN
, 0, 0 );
465 SendMessageW( hWnd
, WM_LBUTTONUP
, 0, 0 );
469 /* Check that image format matches button style */
470 switch (style
& (BS_BITMAP
|BS_ICON
))
473 if (wParam
!= IMAGE_BITMAP
) return 0;
476 if (wParam
!= IMAGE_ICON
) return 0;
481 oldHbitmap
= (HBITMAP
)SetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
, lParam
);
482 InvalidateRect( hWnd
, NULL
, FALSE
);
483 return (LRESULT
)oldHbitmap
;
486 return GetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
);
489 return get_button_state( hWnd
) & 3;
492 if (wParam
> maxCheckState
[btn_type
]) wParam
= maxCheckState
[btn_type
];
493 state
= get_button_state( hWnd
);
494 if ((btn_type
== BS_RADIOBUTTON
) || (btn_type
== BS_AUTORADIOBUTTON
))
496 if (wParam
) WIN_SetStyle( hWnd
, WS_TABSTOP
, 0 );
497 else WIN_SetStyle( hWnd
, 0, WS_TABSTOP
);
499 if ((state
& 3) != wParam
)
501 set_button_state( hWnd
, (state
& ~3) | wParam
);
502 paint_button( hWnd
, btn_type
, ODA_SELECT
);
504 if ((btn_type
== BS_AUTORADIOBUTTON
) && (wParam
== BUTTON_CHECKED
) && (style
& WS_CHILD
))
505 BUTTON_CheckAutoRadioButton( hWnd
);
509 return get_button_state( hWnd
);
512 state
= get_button_state( hWnd
);
514 set_button_state( hWnd
, state
| BUTTON_HIGHLIGHTED
);
516 set_button_state( hWnd
, state
& ~BUTTON_HIGHLIGHTED
);
518 paint_button( hWnd
, btn_type
, ODA_SELECT
);
522 if(btn_type
== BS_GROUPBOX
) return HTTRANSPARENT
;
525 return unicode
? DefWindowProcW(hWnd
, uMsg
, wParam
, lParam
) :
526 DefWindowProcA(hWnd
, uMsg
, wParam
, lParam
);
531 /**********************************************************************
532 * Convert button styles to flags used by DrawText.
534 static UINT
BUTTON_BStoDT( DWORD style
, DWORD ex_style
)
536 UINT dtStyle
= DT_NOCLIP
; /* We use SelectClipRgn to limit output */
538 /* "Convert" pushlike buttons to pushbuttons */
539 if (style
& BS_PUSHLIKE
)
540 style
&= ~BS_TYPEMASK
;
542 if (!(style
& BS_MULTILINE
))
543 dtStyle
|= DT_SINGLELINE
;
545 dtStyle
|= DT_WORDBREAK
;
547 switch (style
& BS_CENTER
)
549 case BS_LEFT
: /* DT_LEFT is 0 */ break;
550 case BS_RIGHT
: dtStyle
|= DT_RIGHT
; break;
551 case BS_CENTER
: dtStyle
|= DT_CENTER
; break;
553 /* Pushbutton's text is centered by default */
554 if (get_button_type(style
) <= BS_DEFPUSHBUTTON
) dtStyle
|= DT_CENTER
;
555 /* all other flavours have left aligned text */
558 if (ex_style
& WS_EX_RIGHT
) dtStyle
= DT_RIGHT
| (dtStyle
& ~(DT_LEFT
| DT_CENTER
));
560 /* DrawText ignores vertical alignment for multiline text,
561 * but we use these flags to align label manually.
563 if (get_button_type(style
) != BS_GROUPBOX
)
565 switch (style
& BS_VCENTER
)
567 case BS_TOP
: /* DT_TOP is 0 */ break;
568 case BS_BOTTOM
: dtStyle
|= DT_BOTTOM
; break;
569 case BS_VCENTER
: /* fall through */
570 default: dtStyle
|= DT_VCENTER
; break;
574 /* GroupBox's text is always single line and is top aligned. */
575 dtStyle
|= DT_SINGLELINE
;
580 /**********************************************************************
581 * BUTTON_CalcLabelRect
583 * Calculates label's rectangle depending on button style.
585 * Returns flags to be passed to DrawText.
586 * Calculated rectangle doesn't take into account button state
587 * (pushed, etc.). If there is nothing to draw (no text/image) output
588 * rectangle is empty, and return value is (UINT)-1.
590 static UINT
BUTTON_CalcLabelRect(HWND hwnd
, HDC hdc
, RECT
*rc
)
592 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
593 LONG ex_style
= GetWindowLongW( hwnd
, GWL_EXSTYLE
);
597 UINT dtStyle
= BUTTON_BStoDT( style
, ex_style
);
601 /* Calculate label rectangle according to label type */
602 switch (style
& (BS_ICON
|BS_BITMAP
))
605 if (!(text
= get_button_text( hwnd
))) goto empty_rect
;
608 HeapFree( GetProcessHeap(), 0, text
);
611 DrawTextW(hdc
, text
, -1, &r
, dtStyle
| DT_CALCRECT
);
612 HeapFree( GetProcessHeap(), 0, text
);
616 if (!GetIconInfo((HICON
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), &iconInfo
))
619 GetObjectW (iconInfo
.hbmColor
, sizeof(BITMAP
), &bm
);
621 r
.right
= r
.left
+ bm
.bmWidth
;
622 r
.bottom
= r
.top
+ bm
.bmHeight
;
624 DeleteObject(iconInfo
.hbmColor
);
625 DeleteObject(iconInfo
.hbmMask
);
629 if (!GetObjectW( (HANDLE
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), sizeof(BITMAP
), &bm
))
632 r
.right
= r
.left
+ bm
.bmWidth
;
633 r
.bottom
= r
.top
+ bm
.bmHeight
;
643 /* Position label inside bounding rectangle according to
644 * alignment flags. (calculated rect is always left-top aligned).
645 * If label is aligned to any side - shift label in opposite
646 * direction to leave extra space for focus rectangle.
648 switch (dtStyle
& (DT_CENTER
|DT_RIGHT
))
650 case DT_LEFT
: r
.left
++; r
.right
++; break;
651 case DT_CENTER
: n
= r
.right
- r
.left
;
652 r
.left
= rc
->left
+ ((rc
->right
- rc
->left
) - n
) / 2;
653 r
.right
= r
.left
+ n
; break;
654 case DT_RIGHT
: n
= r
.right
- r
.left
;
655 r
.right
= rc
->right
- 1;
656 r
.left
= r
.right
- n
;
660 switch (dtStyle
& (DT_VCENTER
|DT_BOTTOM
))
662 case DT_TOP
: r
.top
++; r
.bottom
++; break;
663 case DT_VCENTER
: n
= r
.bottom
- r
.top
;
664 r
.top
= rc
->top
+ ((rc
->bottom
- rc
->top
) - n
) / 2;
665 r
.bottom
= r
.top
+ n
; break;
666 case DT_BOTTOM
: n
= r
.bottom
- r
.top
;
667 r
.bottom
= rc
->bottom
- 1;
668 r
.top
= r
.bottom
- n
;
677 /**********************************************************************
678 * BUTTON_DrawTextCallback
680 * Callback function used by DrawStateW function.
682 static BOOL CALLBACK
BUTTON_DrawTextCallback(HDC hdc
, LPARAM lp
, WPARAM wp
, int cx
, int cy
)
690 DrawTextW(hdc
, (LPCWSTR
)lp
, -1, &rc
, (UINT
)wp
);
695 /**********************************************************************
698 * Common function for drawing button label.
700 static void BUTTON_DrawLabel(HWND hwnd
, HDC hdc
, UINT dtFlags
, const RECT
*rc
)
702 DRAWSTATEPROC lpOutputProc
= NULL
;
706 UINT flags
= IsWindowEnabled(hwnd
) ? DSS_NORMAL
: DSS_DISABLED
;
707 LONG state
= get_button_state( hwnd
);
708 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
711 /* FIXME: To draw disabled label in Win31 look-and-feel, we probably
712 * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION).
713 * I don't have Win31 on hand to verify that, so I leave it as is.
716 if ((style
& BS_PUSHLIKE
) && (state
& BUTTON_3STATE
))
718 hbr
= GetSysColorBrush(COLOR_GRAYTEXT
);
722 switch (style
& (BS_ICON
|BS_BITMAP
))
725 /* DST_COMPLEX -- is 0 */
726 lpOutputProc
= BUTTON_DrawTextCallback
;
727 if (!(text
= get_button_text( hwnd
))) return;
734 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
739 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
746 DrawStateW(hdc
, hbr
, lpOutputProc
, lp
, wp
, rc
->left
, rc
->top
,
747 rc
->right
- rc
->left
, rc
->bottom
- rc
->top
, flags
);
748 HeapFree( GetProcessHeap(), 0, text
);
751 /**********************************************************************
752 * Push Button Functions
754 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
757 UINT dtFlags
, uState
;
761 COLORREF oldTxtColor
;
763 LONG state
= get_button_state( hwnd
);
764 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
765 BOOL pushedState
= (state
& BUTTON_HIGHLIGHTED
);
769 GetClientRect( hwnd
, &rc
);
771 /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
772 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
773 parent
= GetParent(hwnd
);
774 if (!parent
) parent
= hwnd
;
775 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
777 hrgn
= set_control_clipping( hDC
, &rc
);
779 hOldPen
= SelectObject(hDC
, SYSCOLOR_GetPen(COLOR_WINDOWFRAME
));
780 hOldBrush
= SelectObject(hDC
,GetSysColorBrush(COLOR_BTNFACE
));
781 oldBkMode
= SetBkMode(hDC
, TRANSPARENT
);
783 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
785 if (action
!= ODA_FOCUS
)
786 Rectangle(hDC
, rc
.left
, rc
.top
, rc
.right
, rc
.bottom
);
787 InflateRect( &rc
, -1, -1 );
790 /* completely skip the drawing if only focus has changed */
791 if (action
== ODA_FOCUS
) goto draw_focus
;
793 uState
= DFCS_BUTTONPUSH
;
797 else if (pushedState
)
799 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
802 uState
|= DFCS_PUSHED
;
805 if (state
& (BUTTON_CHECKED
| BUTTON_3STATE
))
806 uState
|= DFCS_CHECKED
;
808 DrawFrameControl( hDC
, &rc
, DFC_BUTTON
, uState
);
810 /* draw button label */
812 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &r
);
814 if (dtFlags
== (UINT
)-1L)
818 OffsetRect(&r
, 1, 1);
820 oldTxtColor
= SetTextColor( hDC
, GetSysColor(COLOR_BTNTEXT
) );
822 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &r
);
824 SetTextColor( hDC
, oldTxtColor
);
827 if (action
== ODA_FOCUS
|| (state
& BUTTON_HASFOCUS
))
829 InflateRect( &rc
, -2, -2 );
830 DrawFocusRect( hDC
, &rc
);
834 SelectObject( hDC
, hOldPen
);
835 SelectObject( hDC
, hOldBrush
);
836 SetBkMode(hDC
, oldBkMode
);
837 SelectClipRgn( hDC
, hrgn
);
838 if (hrgn
) DeleteObject( hrgn
);
841 /**********************************************************************
842 * Check Box & Radio Button Functions
845 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
847 RECT rbox
, rtext
, client
;
852 LONG state
= get_button_state( hwnd
);
853 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
857 if (style
& BS_PUSHLIKE
)
859 PB_Paint( hwnd
, hDC
, action
);
863 GetClientRect(hwnd
, &client
);
864 rbox
= rtext
= client
;
866 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
868 parent
= GetParent(hwnd
);
869 if (!parent
) parent
= hwnd
;
870 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
,
871 (WPARAM
)hDC
, (LPARAM
)hwnd
);
872 if (!hBrush
) /* did the app forget to call defwindowproc ? */
873 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
874 (WPARAM
)hDC
, (LPARAM
)hwnd
);
875 hrgn
= set_control_clipping( hDC
, &client
);
877 if (style
& BS_LEFTTEXT
)
879 /* magic +4 is what CTL3D expects */
881 rtext
.right
-= checkBoxWidth
+ 4;
882 rbox
.left
= rbox
.right
- checkBoxWidth
;
886 rtext
.left
+= checkBoxWidth
+ 4;
887 rbox
.right
= checkBoxWidth
;
890 /* Since WM_ERASEBKGND does nothing, first prepare background */
891 if (action
== ODA_SELECT
) FillRect( hDC
, &rbox
, hBrush
);
892 if (action
== ODA_DRAWENTIRE
) FillRect( hDC
, &client
, hBrush
);
896 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rtext
);
898 /* Only adjust rbox when rtext is valid */
899 if (dtFlags
!= (UINT
)-1L)
901 rbox
.top
= rtext
.top
;
902 rbox
.bottom
= rtext
.bottom
;
905 /* Draw the check-box bitmap */
906 if (action
== ODA_DRAWENTIRE
|| action
== ODA_SELECT
)
910 if ((get_button_type(style
) == BS_RADIOBUTTON
) ||
911 (get_button_type(style
) == BS_AUTORADIOBUTTON
)) flags
= DFCS_BUTTONRADIO
;
912 else if (state
& BUTTON_3STATE
) flags
= DFCS_BUTTON3STATE
;
913 else flags
= DFCS_BUTTONCHECK
;
915 if (state
& (BUTTON_CHECKED
| BUTTON_3STATE
)) flags
|= DFCS_CHECKED
;
916 if (state
& BUTTON_HIGHLIGHTED
) flags
|= DFCS_PUSHED
;
918 if (style
& WS_DISABLED
) flags
|= DFCS_INACTIVE
;
920 /* rbox must have the correct height */
921 delta
= rbox
.bottom
- rbox
.top
- checkBoxHeight
;
923 if (style
& BS_TOP
) {
925 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
927 rbox
.top
-= -delta
/2 + 1;
928 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
930 } else if (style
& BS_BOTTOM
) {
932 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
934 rbox
.bottom
+= -delta
/2 + 1;
935 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
937 } else { /* Default */
939 int ofs
= (delta
/ 2);
940 rbox
.bottom
-= ofs
+ 1;
941 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
942 } else if (delta
< 0) {
943 int ofs
= (-delta
/ 2);
945 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
949 DrawFrameControl( hDC
, &rbox
, DFC_BUTTON
, flags
);
952 if (dtFlags
== (UINT
)-1L) /* Noting to draw */
955 if (action
== ODA_DRAWENTIRE
)
956 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rtext
);
959 if (action
== ODA_FOCUS
|| (state
& BUTTON_HASFOCUS
))
963 IntersectRect(&rtext
, &rtext
, &client
);
964 DrawFocusRect( hDC
, &rtext
);
966 SelectClipRgn( hDC
, hrgn
);
967 if (hrgn
) DeleteObject( hrgn
);
971 /**********************************************************************
972 * BUTTON_CheckAutoRadioButton
974 * hwnd is checked, uncheck every other auto radio button in group
976 static void BUTTON_CheckAutoRadioButton( HWND hwnd
)
978 HWND parent
, sibling
, start
;
980 parent
= GetParent(hwnd
);
981 /* make sure that starting control is not disabled or invisible */
982 start
= sibling
= GetNextDlgGroupItem( parent
, hwnd
, TRUE
);
986 if ((hwnd
!= sibling
) &&
987 ((GetWindowLongW( sibling
, GWL_STYLE
) & BS_TYPEMASK
) == BS_AUTORADIOBUTTON
))
988 SendMessageW( sibling
, BM_SETCHECK
, BUTTON_UNCHECKED
, 0 );
989 sibling
= GetNextDlgGroupItem( parent
, sibling
, FALSE
);
990 } while (sibling
!= start
);
994 /**********************************************************************
995 * Group Box Functions
998 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1005 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
1009 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1010 /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
1011 parent
= GetParent(hwnd
);
1012 if (!parent
) parent
= hwnd
;
1013 hbr
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1014 if (!hbr
) /* did the app forget to call defwindowproc ? */
1015 hbr
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
1016 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1017 GetClientRect( hwnd
, &rc
);
1019 hrgn
= set_control_clipping( hDC
, &rc
);
1021 GetTextMetricsW (hDC
, &tm
);
1022 rcFrame
.top
+= (tm
.tmHeight
/ 2) - 1;
1023 DrawEdge (hDC
, &rcFrame
, EDGE_ETCHED
, BF_RECT
| ((style
& BS_FLAT
) ? BF_FLAT
: 0));
1025 InflateRect(&rc
, -7, 1);
1026 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rc
);
1028 if (dtFlags
!= (UINT
)-1)
1030 /* Because buttons have CS_PARENTDC class style, there is a chance
1031 * that label will be drawn out of client rect.
1032 * But Windows doesn't clip label's rect, so do I.
1035 /* There is 1-pixel margin at the left, right, and bottom */
1036 rc
.left
--; rc
.right
++; rc
.bottom
++;
1037 FillRect(hDC
, &rc
, hbr
);
1038 rc
.left
++; rc
.right
--; rc
.bottom
--;
1040 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rc
);
1042 SelectClipRgn( hDC
, hrgn
);
1043 if (hrgn
) DeleteObject( hrgn
);
1047 /**********************************************************************
1048 * User Button Functions
1051 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1056 LONG state
= get_button_state( hwnd
);
1059 GetClientRect( hwnd
, &rc
);
1061 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1063 parent
= GetParent(hwnd
);
1064 if (!parent
) parent
= hwnd
;
1065 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1066 if (!hBrush
) /* did the app forget to call defwindowproc ? */
1067 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
1068 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1070 FillRect( hDC
, &rc
, hBrush
);
1071 if (action
== ODA_FOCUS
|| (state
& BUTTON_HASFOCUS
))
1072 DrawFocusRect( hDC
, &rc
);
1077 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BUTTON_HASFOCUS
) ? BN_SETFOCUS
: BN_KILLFOCUS
);
1081 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BUTTON_HIGHLIGHTED
) ? BN_HILITE
: BN_UNHILITE
);
1085 BUTTON_NOTIFY_PARENT( hwnd
, BN_PAINT
);
1091 /**********************************************************************
1092 * Ownerdrawn Button Functions
1095 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1097 LONG state
= get_button_state( hwnd
);
1099 LONG_PTR id
= GetWindowLongPtrW( hwnd
, GWLP_ID
);
1101 HFONT hFont
, hPrevFont
= 0;
1104 dis
.CtlType
= ODT_BUTTON
;
1107 dis
.itemAction
= action
;
1108 dis
.itemState
= ((state
& BUTTON_HASFOCUS
) ? ODS_FOCUS
: 0) |
1109 ((state
& BUTTON_HIGHLIGHTED
) ? ODS_SELECTED
: 0) |
1110 (IsWindowEnabled(hwnd
) ? 0: ODS_DISABLED
);
1111 dis
.hwndItem
= hwnd
;
1114 GetClientRect( hwnd
, &dis
.rcItem
);
1116 if ((hFont
= get_button_font( hwnd
))) hPrevFont
= SelectObject( hDC
, hFont
);
1117 parent
= GetParent(hwnd
);
1118 if (!parent
) parent
= hwnd
;
1119 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1121 hrgn
= set_control_clipping( hDC
, &dis
.rcItem
);
1123 SendMessageW( GetParent(hwnd
), WM_DRAWITEM
, id
, (LPARAM
)&dis
);
1124 if (hPrevFont
) SelectObject(hDC
, hPrevFont
);
1125 SelectClipRgn( hDC
, hrgn
);
1126 if (hrgn
) DeleteObject( hrgn
);