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 * - BS_NOTIFY: is it complete?
24 * - BS_RIGHTBUTTON: same as BS_LEFTTEXT
27 * - WM_CHAR: Checks a (manual or automatic) check box on '+' or '=', clears it on '-' key.
28 * - WM_SETFOCUS: For (manual or automatic) radio buttons, send the parent window BN_CLICKED
29 * - WM_NCCREATE: Turns any BS_OWNERDRAW button into a BS_PUSHBUTTON button.
34 * - BN_PUSHED/BN_HILITE
35 * + BN_KILLFOCUS: is it OK?
37 * + BN_SETFOCUS: is it OK?
38 * - BN_UNPUSHED/BN_UNHILITE
52 #include "user_private.h"
53 #include "wine/debug.h"
55 WINE_DEFAULT_DEBUG_CHANNEL(button
);
57 /* GetWindowLong offsets for window extra information */
58 #define STATE_GWL_OFFSET 0
59 #define HFONT_GWL_OFFSET (sizeof(LONG))
60 #define HIMAGE_GWL_OFFSET (HFONT_GWL_OFFSET+sizeof(HFONT))
61 #define NB_EXTRA_BYTES (HIMAGE_GWL_OFFSET+sizeof(HANDLE))
63 /* undocumented flags */
64 #define BUTTON_NSTATES 0x0F
65 #define BUTTON_BTNPRESSED 0x40
66 #define BUTTON_UNKNOWN2 0x20
67 #define BUTTON_UNKNOWN3 0x10
69 #define BUTTON_NOTIFY_PARENT(hWnd, code) \
70 do { /* Notify parent which has created this button control */ \
71 TRACE("notification " #code " sent to hwnd=%p\n", GetParent(hWnd)); \
72 SendMessageW(GetParent(hWnd), WM_COMMAND, \
73 MAKEWPARAM(GetWindowLongPtrW((hWnd),GWLP_ID), (code)), \
77 static UINT
BUTTON_CalcLabelRect( HWND hwnd
, HDC hdc
, RECT
*rc
);
78 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
79 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
80 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
81 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
82 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
83 static void BUTTON_CheckAutoRadioButton( HWND hwnd
);
85 #define MAX_BTN_TYPE 16
87 static const WORD maxCheckState
[MAX_BTN_TYPE
] =
89 BST_UNCHECKED
, /* BS_PUSHBUTTON */
90 BST_UNCHECKED
, /* BS_DEFPUSHBUTTON */
91 BST_CHECKED
, /* BS_CHECKBOX */
92 BST_CHECKED
, /* BS_AUTOCHECKBOX */
93 BST_CHECKED
, /* BS_RADIOBUTTON */
94 BST_INDETERMINATE
, /* BS_3STATE */
95 BST_INDETERMINATE
, /* BS_AUTO3STATE */
96 BST_UNCHECKED
, /* BS_GROUPBOX */
97 BST_UNCHECKED
, /* BS_USERBUTTON */
98 BST_CHECKED
, /* BS_AUTORADIOBUTTON */
99 BST_UNCHECKED
, /* BS_PUSHBOX */
100 BST_UNCHECKED
/* BS_OWNERDRAW */
103 typedef void (*pfPaint
)( HWND hwnd
, HDC hdc
, UINT action
);
105 static const pfPaint btnPaintFunc
[MAX_BTN_TYPE
] =
107 PB_Paint
, /* BS_PUSHBUTTON */
108 PB_Paint
, /* BS_DEFPUSHBUTTON */
109 CB_Paint
, /* BS_CHECKBOX */
110 CB_Paint
, /* BS_AUTOCHECKBOX */
111 CB_Paint
, /* BS_RADIOBUTTON */
112 CB_Paint
, /* BS_3STATE */
113 CB_Paint
, /* BS_AUTO3STATE */
114 GB_Paint
, /* BS_GROUPBOX */
115 UB_Paint
, /* BS_USERBUTTON */
116 CB_Paint
, /* BS_AUTORADIOBUTTON */
117 NULL
, /* BS_PUSHBOX */
118 OB_Paint
/* BS_OWNERDRAW */
121 /*********************************************************************
122 * button class descriptor
124 static const WCHAR buttonW
[] = {'B','u','t','t','o','n',0};
125 const struct builtin_class_descr BUTTON_builtin_class
=
128 CS_DBLCLKS
| CS_VREDRAW
| CS_HREDRAW
| CS_PARENTDC
, /* style */
129 WINPROC_BUTTON
, /* proc */
130 NB_EXTRA_BYTES
, /* extra */
131 IDC_ARROW
, /* cursor */
136 static inline LONG
get_button_state( HWND hwnd
)
138 return GetWindowLongW( hwnd
, STATE_GWL_OFFSET
);
141 static inline void set_button_state( HWND hwnd
, LONG state
)
143 SetWindowLongW( hwnd
, STATE_GWL_OFFSET
, state
);
146 static inline HFONT
get_button_font( HWND hwnd
)
148 return (HFONT
)GetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
);
151 static inline void set_button_font( HWND hwnd
, HFONT font
)
153 SetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
, (LONG_PTR
)font
);
156 static inline UINT
get_button_type( LONG window_style
)
158 return (window_style
& BS_TYPEMASK
);
161 /* paint a button of any type */
162 static inline void paint_button( HWND hwnd
, LONG style
, UINT action
)
164 if (btnPaintFunc
[style
] && IsWindowVisible(hwnd
))
166 HDC hdc
= GetDC( hwnd
);
167 btnPaintFunc
[style
]( hwnd
, hdc
, action
);
168 ReleaseDC( hwnd
, hdc
);
172 /* retrieve the button text; returned buffer must be freed by caller */
173 static inline WCHAR
*get_button_text( HWND hwnd
)
175 static const INT len
= 512;
176 WCHAR
*buffer
= HeapAlloc( GetProcessHeap(), 0, (len
+ 1) * sizeof(WCHAR
) );
177 if (buffer
) InternalGetWindowText( hwnd
, buffer
, len
+ 1 );
181 /***********************************************************************
182 * ButtonWndProc_common
184 LRESULT
ButtonWndProc_common(HWND hWnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
, BOOL unicode
)
188 LONG style
= GetWindowLongW( hWnd
, GWL_STYLE
);
189 UINT btn_type
= get_button_type( style
);
193 if (!IsWindow( hWnd
)) return 0;
195 pt
.x
= (short)LOWORD(lParam
);
196 pt
.y
= (short)HIWORD(lParam
);
204 case BS_PUSHBUTTON
: return DLGC_BUTTON
| DLGC_UNDEFPUSHBUTTON
;
205 case BS_DEFPUSHBUTTON
: return DLGC_BUTTON
| DLGC_DEFPUSHBUTTON
;
207 case BS_AUTORADIOBUTTON
: return DLGC_BUTTON
| DLGC_RADIOBUTTON
;
208 case BS_GROUPBOX
: return DLGC_STATIC
;
209 default: return DLGC_BUTTON
;
213 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
217 if (btn_type
>= MAX_BTN_TYPE
)
218 return -1; /* abort */
220 /* XP turns a BS_USERBUTTON into BS_PUSHBUTTON */
221 if (btn_type
== BS_USERBUTTON
)
223 style
= (style
& ~BS_TYPEMASK
) | BS_PUSHBUTTON
;
224 WIN_SetStyle( hWnd
, style
, BS_TYPEMASK
& ~style
);
226 set_button_state( hWnd
, BST_UNCHECKED
);
230 if (btn_type
== BS_OWNERDRAW
)
232 HDC hdc
= (HDC
)wParam
;
235 HWND parent
= GetParent(hWnd
);
236 if (!parent
) parent
= hWnd
;
237 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hdc
, (LPARAM
)hWnd
);
238 if (!hBrush
) /* did the app forget to call defwindowproc ? */
239 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
240 (WPARAM
)hdc
, (LPARAM
)hWnd
);
241 GetClientRect(hWnd
, &rc
);
242 FillRect(hdc
, &rc
, hBrush
);
250 HDC hdc
= wParam
? (HDC
)wParam
: BeginPaint( hWnd
, &ps
);
251 if (btnPaintFunc
[btn_type
])
253 int nOldMode
= SetBkMode( hdc
, OPAQUE
);
254 (btnPaintFunc
[btn_type
])( hWnd
, hdc
, ODA_DRAWENTIRE
);
255 SetBkMode(hdc
, nOldMode
); /* reset painting mode */
257 if ( !wParam
) EndPaint( hWnd
, &ps
);
262 if (wParam
== VK_SPACE
)
264 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
265 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
270 case WM_LBUTTONDBLCLK
:
271 if(style
& BS_NOTIFY
||
272 btn_type
== BS_RADIOBUTTON
||
273 btn_type
== BS_USERBUTTON
||
274 btn_type
== BS_OWNERDRAW
)
276 BUTTON_NOTIFY_PARENT(hWnd
, BN_DOUBLECLICKED
);
283 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
284 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
288 if (wParam
!= VK_SPACE
)
292 state
= get_button_state( hWnd
);
293 if (!(state
& BUTTON_BTNPRESSED
)) break;
294 state
&= BUTTON_NSTATES
;
295 set_button_state( hWnd
, state
);
296 if (!(state
& BST_PUSHED
))
301 SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
302 GetClientRect( hWnd
, &rect
);
303 if (uMsg
== WM_KEYUP
|| PtInRect( &rect
, pt
))
305 state
= get_button_state( hWnd
);
308 case BS_AUTOCHECKBOX
:
309 SendMessageW( hWnd
, BM_SETCHECK
, !(state
& BST_CHECKED
), 0 );
311 case BS_AUTORADIOBUTTON
:
312 SendMessageW( hWnd
, BM_SETCHECK
, TRUE
, 0 );
315 SendMessageW( hWnd
, BM_SETCHECK
,
316 (state
& BST_INDETERMINATE
) ? 0 : ((state
& 3) + 1), 0 );
320 BUTTON_NOTIFY_PARENT(hWnd
, BN_CLICKED
);
328 case WM_CAPTURECHANGED
:
329 TRACE("WM_CAPTURECHANGED %p\n", hWnd
);
330 if (hWnd
== (HWND
)lParam
) break;
331 state
= get_button_state( hWnd
);
332 if (state
& BUTTON_BTNPRESSED
)
334 state
&= BUTTON_NSTATES
;
335 set_button_state( hWnd
, state
);
336 if (state
& BST_PUSHED
) SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
341 if ((wParam
& MK_LBUTTON
) && GetCapture() == hWnd
)
343 GetClientRect( hWnd
, &rect
);
344 SendMessageW( hWnd
, BM_SETSTATE
, PtInRect(&rect
, pt
), 0 );
350 /* Clear an old text here as Windows does */
351 if (IsWindowVisible(hWnd
))
353 HDC hdc
= GetDC(hWnd
);
356 HWND parent
= GetParent(hWnd
);
357 UINT message
= (btn_type
== BS_PUSHBUTTON
||
358 btn_type
== BS_DEFPUSHBUTTON
||
359 btn_type
== BS_USERBUTTON
||
360 btn_type
== BS_OWNERDRAW
) ?
361 WM_CTLCOLORBTN
: WM_CTLCOLORSTATIC
;
363 if (!parent
) parent
= hWnd
;
364 hbrush
= (HBRUSH
)SendMessageW(parent
, message
,
365 (WPARAM
)hdc
, (LPARAM
)hWnd
);
366 if (!hbrush
) /* did the app forget to call DefWindowProc ? */
367 hbrush
= (HBRUSH
)DefWindowProcW(parent
, message
,
368 (WPARAM
)hdc
, (LPARAM
)hWnd
);
370 GetClientRect(hWnd
, &client
);
372 /* FIXME: check other BS_* handlers */
373 if (btn_type
== BS_GROUPBOX
)
374 InflateRect(&rc
, -7, 1); /* GB_Paint does this */
375 BUTTON_CalcLabelRect(hWnd
, hdc
, &rc
);
376 /* Clip by client rect bounds */
377 if (rc
.right
> client
.right
) rc
.right
= client
.right
;
378 if (rc
.bottom
> client
.bottom
) rc
.bottom
= client
.bottom
;
379 FillRect(hdc
, &rc
, hbrush
);
380 ReleaseDC(hWnd
, hdc
);
383 if (unicode
) DefWindowProcW( hWnd
, WM_SETTEXT
, wParam
, lParam
);
384 else DefWindowProcA( hWnd
, WM_SETTEXT
, wParam
, lParam
);
385 if (btn_type
== BS_GROUPBOX
) /* Yes, only for BS_GROUPBOX */
386 InvalidateRect( hWnd
, NULL
, TRUE
);
388 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
389 return 1; /* success. FIXME: check text length */
393 set_button_font( hWnd
, (HFONT
)wParam
);
394 if (lParam
) InvalidateRect(hWnd
, NULL
, TRUE
);
398 return (LRESULT
)get_button_font( hWnd
);
401 TRACE("WM_SETFOCUS %p\n",hWnd
);
402 set_button_state( hWnd
, get_button_state(hWnd
) | BST_FOCUS
);
403 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
404 if (style
& BS_NOTIFY
)
405 BUTTON_NOTIFY_PARENT(hWnd
, BN_SETFOCUS
);
409 TRACE("WM_KILLFOCUS %p\n",hWnd
);
410 state
= get_button_state( hWnd
);
411 set_button_state( hWnd
, state
& ~BST_FOCUS
);
412 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
414 if ((state
& BUTTON_BTNPRESSED
) && GetCapture() == hWnd
)
416 if (style
& BS_NOTIFY
)
417 BUTTON_NOTIFY_PARENT(hWnd
, BN_KILLFOCUS
);
419 InvalidateRect( hWnd
, NULL
, FALSE
);
422 case WM_SYSCOLORCHANGE
:
423 InvalidateRect( hWnd
, NULL
, FALSE
);
427 btn_type
= wParam
& BS_TYPEMASK
;
428 style
= (style
& ~BS_TYPEMASK
) | btn_type
;
429 WIN_SetStyle( hWnd
, style
, BS_TYPEMASK
& ~style
);
431 /* Only redraw if lParam flag is set.*/
433 InvalidateRect( hWnd
, NULL
, TRUE
);
438 SendMessageW( hWnd
, WM_LBUTTONDOWN
, 0, 0 );
439 SendMessageW( hWnd
, WM_LBUTTONUP
, 0, 0 );
443 /* Check that image format matches button style */
444 switch (style
& (BS_BITMAP
|BS_ICON
))
447 if (wParam
!= IMAGE_BITMAP
) return 0;
450 if (wParam
!= IMAGE_ICON
) return 0;
455 oldHbitmap
= (HBITMAP
)SetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
, lParam
);
456 InvalidateRect( hWnd
, NULL
, FALSE
);
457 return (LRESULT
)oldHbitmap
;
460 return GetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
);
463 return get_button_state( hWnd
) & 3;
466 if (wParam
> maxCheckState
[btn_type
]) wParam
= maxCheckState
[btn_type
];
467 state
= get_button_state( hWnd
);
468 if ((btn_type
== BS_RADIOBUTTON
) || (btn_type
== BS_AUTORADIOBUTTON
))
470 if (wParam
) WIN_SetStyle( hWnd
, WS_TABSTOP
, 0 );
471 else WIN_SetStyle( hWnd
, 0, WS_TABSTOP
);
473 if ((state
& 3) != wParam
)
475 set_button_state( hWnd
, (state
& ~3) | wParam
);
476 paint_button( hWnd
, btn_type
, ODA_SELECT
);
478 if ((btn_type
== BS_AUTORADIOBUTTON
) && (wParam
== BST_CHECKED
) && (style
& WS_CHILD
))
479 BUTTON_CheckAutoRadioButton( hWnd
);
483 return get_button_state( hWnd
);
486 state
= get_button_state( hWnd
);
488 set_button_state( hWnd
, state
| BST_PUSHED
);
490 set_button_state( hWnd
, state
& ~BST_PUSHED
);
492 paint_button( hWnd
, btn_type
, ODA_SELECT
);
496 if(btn_type
== BS_GROUPBOX
) return HTTRANSPARENT
;
499 return unicode
? DefWindowProcW(hWnd
, uMsg
, wParam
, lParam
) :
500 DefWindowProcA(hWnd
, uMsg
, wParam
, lParam
);
505 /**********************************************************************
506 * Convert button styles to flags used by DrawText.
508 static UINT
BUTTON_BStoDT( DWORD style
, DWORD ex_style
)
510 UINT dtStyle
= DT_NOCLIP
; /* We use SelectClipRgn to limit output */
512 /* "Convert" pushlike buttons to pushbuttons */
513 if (style
& BS_PUSHLIKE
)
514 style
&= ~BS_TYPEMASK
;
516 if (!(style
& BS_MULTILINE
))
517 dtStyle
|= DT_SINGLELINE
;
519 dtStyle
|= DT_WORDBREAK
;
521 switch (style
& BS_CENTER
)
523 case BS_LEFT
: /* DT_LEFT is 0 */ break;
524 case BS_RIGHT
: dtStyle
|= DT_RIGHT
; break;
525 case BS_CENTER
: dtStyle
|= DT_CENTER
; break;
527 /* Pushbutton's text is centered by default */
528 if (get_button_type(style
) <= BS_DEFPUSHBUTTON
) dtStyle
|= DT_CENTER
;
529 /* all other flavours have left aligned text */
532 if (ex_style
& WS_EX_RIGHT
) dtStyle
= DT_RIGHT
| (dtStyle
& ~(DT_LEFT
| DT_CENTER
));
534 /* DrawText ignores vertical alignment for multiline text,
535 * but we use these flags to align label manually.
537 if (get_button_type(style
) != BS_GROUPBOX
)
539 switch (style
& BS_VCENTER
)
541 case BS_TOP
: /* DT_TOP is 0 */ break;
542 case BS_BOTTOM
: dtStyle
|= DT_BOTTOM
; break;
543 case BS_VCENTER
: /* fall through */
544 default: dtStyle
|= DT_VCENTER
; break;
548 /* GroupBox's text is always single line and is top aligned. */
549 dtStyle
|= DT_SINGLELINE
;
554 /**********************************************************************
555 * BUTTON_CalcLabelRect
557 * Calculates label's rectangle depending on button style.
559 * Returns flags to be passed to DrawText.
560 * Calculated rectangle doesn't take into account button state
561 * (pushed, etc.). If there is nothing to draw (no text/image) output
562 * rectangle is empty, and return value is (UINT)-1.
564 static UINT
BUTTON_CalcLabelRect(HWND hwnd
, HDC hdc
, RECT
*rc
)
566 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
567 LONG ex_style
= GetWindowLongW( hwnd
, GWL_EXSTYLE
);
571 UINT dtStyle
= BUTTON_BStoDT( style
, ex_style
);
575 /* Calculate label rectangle according to label type */
576 switch (style
& (BS_ICON
|BS_BITMAP
))
580 HFONT hFont
, hPrevFont
= 0;
582 if (!(text
= get_button_text( hwnd
))) goto empty_rect
;
585 HeapFree( GetProcessHeap(), 0, text
);
589 if ((hFont
= get_button_font( hwnd
))) hPrevFont
= SelectObject( hdc
, hFont
);
590 DrawTextW(hdc
, text
, -1, &r
, dtStyle
| DT_CALCRECT
);
591 if (hPrevFont
) SelectObject( hdc
, hPrevFont
);
592 HeapFree( GetProcessHeap(), 0, text
);
597 if (!GetIconInfo((HICON
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), &iconInfo
))
600 GetObjectW (iconInfo
.hbmColor
, sizeof(BITMAP
), &bm
);
602 r
.right
= r
.left
+ bm
.bmWidth
;
603 r
.bottom
= r
.top
+ bm
.bmHeight
;
605 DeleteObject(iconInfo
.hbmColor
);
606 DeleteObject(iconInfo
.hbmMask
);
610 if (!GetObjectW( (HANDLE
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), sizeof(BITMAP
), &bm
))
613 r
.right
= r
.left
+ bm
.bmWidth
;
614 r
.bottom
= r
.top
+ bm
.bmHeight
;
624 /* Position label inside bounding rectangle according to
625 * alignment flags. (calculated rect is always left-top aligned).
626 * If label is aligned to any side - shift label in opposite
627 * direction to leave extra space for focus rectangle.
629 switch (dtStyle
& (DT_CENTER
|DT_RIGHT
))
631 case DT_LEFT
: r
.left
++; r
.right
++; break;
632 case DT_CENTER
: n
= r
.right
- r
.left
;
633 r
.left
= rc
->left
+ ((rc
->right
- rc
->left
) - n
) / 2;
634 r
.right
= r
.left
+ n
; break;
635 case DT_RIGHT
: n
= r
.right
- r
.left
;
636 r
.right
= rc
->right
- 1;
637 r
.left
= r
.right
- n
;
641 switch (dtStyle
& (DT_VCENTER
|DT_BOTTOM
))
643 case DT_TOP
: r
.top
++; r
.bottom
++; break;
644 case DT_VCENTER
: n
= r
.bottom
- r
.top
;
645 r
.top
= rc
->top
+ ((rc
->bottom
- rc
->top
) - n
) / 2;
646 r
.bottom
= r
.top
+ n
; break;
647 case DT_BOTTOM
: n
= r
.bottom
- r
.top
;
648 r
.bottom
= rc
->bottom
- 1;
649 r
.top
= r
.bottom
- n
;
658 /**********************************************************************
659 * BUTTON_DrawTextCallback
661 * Callback function used by DrawStateW function.
663 static BOOL CALLBACK
BUTTON_DrawTextCallback(HDC hdc
, LPARAM lp
, WPARAM wp
, int cx
, int cy
)
667 SetRect(&rc
, 0, 0, cx
, cy
);
668 DrawTextW(hdc
, (LPCWSTR
)lp
, -1, &rc
, (UINT
)wp
);
673 /**********************************************************************
676 * Common function for drawing button label.
678 static void BUTTON_DrawLabel(HWND hwnd
, HDC hdc
, UINT dtFlags
, const RECT
*rc
)
680 DRAWSTATEPROC lpOutputProc
= NULL
;
684 UINT flags
= IsWindowEnabled(hwnd
) ? DSS_NORMAL
: DSS_DISABLED
;
685 LONG state
= get_button_state( hwnd
);
686 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
689 /* FIXME: To draw disabled label in Win31 look-and-feel, we probably
690 * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION).
691 * I don't have Win31 on hand to verify that, so I leave it as is.
694 if ((style
& BS_PUSHLIKE
) && (state
& BST_INDETERMINATE
))
696 hbr
= GetSysColorBrush(COLOR_GRAYTEXT
);
700 switch (style
& (BS_ICON
|BS_BITMAP
))
703 /* DST_COMPLEX -- is 0 */
704 lpOutputProc
= BUTTON_DrawTextCallback
;
705 if (!(text
= get_button_text( hwnd
))) return;
712 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
717 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
724 DrawStateW(hdc
, hbr
, lpOutputProc
, lp
, wp
, rc
->left
, rc
->top
,
725 rc
->right
- rc
->left
, rc
->bottom
- rc
->top
, flags
);
726 HeapFree( GetProcessHeap(), 0, text
);
729 /**********************************************************************
730 * Push Button Functions
732 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
735 UINT dtFlags
, uState
;
739 COLORREF oldTxtColor
;
741 LONG state
= get_button_state( hwnd
);
742 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
743 BOOL pushedState
= (state
& BST_PUSHED
);
747 GetClientRect( hwnd
, &rc
);
749 /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
750 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
751 parent
= GetParent(hwnd
);
752 if (!parent
) parent
= hwnd
;
753 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
755 hrgn
= set_control_clipping( hDC
, &rc
);
757 hOldPen
= SelectObject(hDC
, SYSCOLOR_GetPen(COLOR_WINDOWFRAME
));
758 hOldBrush
= SelectObject(hDC
,GetSysColorBrush(COLOR_BTNFACE
));
759 oldBkMode
= SetBkMode(hDC
, TRANSPARENT
);
761 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
763 if (action
!= ODA_FOCUS
)
764 Rectangle(hDC
, rc
.left
, rc
.top
, rc
.right
, rc
.bottom
);
765 InflateRect( &rc
, -1, -1 );
768 /* completely skip the drawing if only focus has changed */
769 if (action
== ODA_FOCUS
) goto draw_focus
;
771 uState
= DFCS_BUTTONPUSH
;
775 else if (pushedState
)
777 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
780 uState
|= DFCS_PUSHED
;
783 if (state
& (BST_CHECKED
| BST_INDETERMINATE
))
784 uState
|= DFCS_CHECKED
;
786 DrawFrameControl( hDC
, &rc
, DFC_BUTTON
, uState
);
788 /* draw button label */
790 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &r
);
792 if (dtFlags
== (UINT
)-1L)
796 OffsetRect(&r
, 1, 1);
798 oldTxtColor
= SetTextColor( hDC
, GetSysColor(COLOR_BTNTEXT
) );
800 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &r
);
802 SetTextColor( hDC
, oldTxtColor
);
805 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
807 InflateRect( &rc
, -2, -2 );
808 DrawFocusRect( hDC
, &rc
);
812 SelectObject( hDC
, hOldPen
);
813 SelectObject( hDC
, hOldBrush
);
814 SetBkMode(hDC
, oldBkMode
);
815 SelectClipRgn( hDC
, hrgn
);
816 if (hrgn
) DeleteObject( hrgn
);
819 /**********************************************************************
820 * Check Box & Radio Button Functions
823 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
825 RECT rbox
, rtext
, client
;
827 int delta
, text_offset
, checkBoxWidth
, checkBoxHeight
;
830 LONG state
= get_button_state( hwnd
);
831 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
832 LONG ex_style
= GetWindowLongW( hwnd
, GWL_EXSTYLE
);
836 if (style
& BS_PUSHLIKE
)
838 PB_Paint( hwnd
, hDC
, action
);
842 GetClientRect(hwnd
, &client
);
843 rbox
= rtext
= client
;
845 checkBoxWidth
= 12 * GetDeviceCaps( hDC
, LOGPIXELSX
) / 96 + 1;
846 checkBoxHeight
= 12 * GetDeviceCaps( hDC
, LOGPIXELSY
) / 96 + 1;
848 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
849 GetCharWidthW( hDC
, '0', '0', &text_offset
);
852 parent
= GetParent(hwnd
);
853 if (!parent
) parent
= hwnd
;
854 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
,
855 (WPARAM
)hDC
, (LPARAM
)hwnd
);
856 if (!hBrush
) /* did the app forget to call defwindowproc ? */
857 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
858 (WPARAM
)hDC
, (LPARAM
)hwnd
);
859 hrgn
= set_control_clipping( hDC
, &client
);
861 if (style
& BS_LEFTTEXT
|| ex_style
& WS_EX_RIGHT
)
863 rtext
.right
-= checkBoxWidth
+ text_offset
;
864 rbox
.left
= rbox
.right
- checkBoxWidth
;
868 rtext
.left
+= checkBoxWidth
+ text_offset
;
869 rbox
.right
= checkBoxWidth
;
872 /* Since WM_ERASEBKGND does nothing, first prepare background */
873 if (action
== ODA_SELECT
) FillRect( hDC
, &rbox
, hBrush
);
874 if (action
== ODA_DRAWENTIRE
) FillRect( hDC
, &client
, hBrush
);
878 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rtext
);
880 /* Only adjust rbox when rtext is valid */
881 if (dtFlags
!= (UINT
)-1L)
883 rbox
.top
= rtext
.top
;
884 rbox
.bottom
= rtext
.bottom
;
887 /* Draw the check-box bitmap */
888 if (action
== ODA_DRAWENTIRE
|| action
== ODA_SELECT
)
892 if ((get_button_type(style
) == BS_RADIOBUTTON
) ||
893 (get_button_type(style
) == BS_AUTORADIOBUTTON
)) flags
= DFCS_BUTTONRADIO
;
894 else if (state
& BST_INDETERMINATE
) flags
= DFCS_BUTTON3STATE
;
895 else flags
= DFCS_BUTTONCHECK
;
897 if (state
& (BST_CHECKED
| BST_INDETERMINATE
)) flags
|= DFCS_CHECKED
;
898 if (state
& BST_PUSHED
) flags
|= DFCS_PUSHED
;
900 if (style
& WS_DISABLED
) flags
|= DFCS_INACTIVE
;
902 /* rbox must have the correct height */
903 delta
= rbox
.bottom
- rbox
.top
- checkBoxHeight
;
905 if (style
& BS_TOP
) {
907 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
909 rbox
.top
-= -delta
/2 + 1;
910 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
912 } else if (style
& BS_BOTTOM
) {
914 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
916 rbox
.bottom
+= -delta
/2 + 1;
917 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
919 } else { /* Default */
921 int ofs
= (delta
/ 2);
922 rbox
.bottom
-= ofs
+ 1;
923 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
924 } else if (delta
< 0) {
925 int ofs
= (-delta
/ 2);
927 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
931 DrawFrameControl( hDC
, &rbox
, DFC_BUTTON
, flags
);
934 if (dtFlags
== (UINT
)-1L) /* Noting to draw */
937 if (action
== ODA_DRAWENTIRE
)
938 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rtext
);
941 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
945 IntersectRect(&rtext
, &rtext
, &client
);
946 DrawFocusRect( hDC
, &rtext
);
948 SelectClipRgn( hDC
, hrgn
);
949 if (hrgn
) DeleteObject( hrgn
);
953 /**********************************************************************
954 * BUTTON_CheckAutoRadioButton
956 * hwnd is checked, uncheck every other auto radio button in group
958 static void BUTTON_CheckAutoRadioButton( HWND hwnd
)
960 HWND parent
, sibling
, start
;
962 parent
= GetParent(hwnd
);
963 /* make sure that starting control is not disabled or invisible */
964 start
= sibling
= GetNextDlgGroupItem( parent
, hwnd
, TRUE
);
968 if ((hwnd
!= sibling
) &&
969 ((GetWindowLongW( sibling
, GWL_STYLE
) & BS_TYPEMASK
) == BS_AUTORADIOBUTTON
))
970 SendMessageW( sibling
, BM_SETCHECK
, BST_UNCHECKED
, 0 );
971 sibling
= GetNextDlgGroupItem( parent
, sibling
, FALSE
);
972 } while (sibling
!= start
);
976 /**********************************************************************
977 * Group Box Functions
980 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
987 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
991 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
992 /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
993 parent
= GetParent(hwnd
);
994 if (!parent
) parent
= hwnd
;
995 hbr
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
996 if (!hbr
) /* did the app forget to call defwindowproc ? */
997 hbr
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
998 (WPARAM
)hDC
, (LPARAM
)hwnd
);
999 GetClientRect( hwnd
, &rc
);
1001 hrgn
= set_control_clipping( hDC
, &rc
);
1003 GetTextMetricsW (hDC
, &tm
);
1004 rcFrame
.top
+= (tm
.tmHeight
/ 2) - 1;
1005 DrawEdge (hDC
, &rcFrame
, EDGE_ETCHED
, BF_RECT
| ((style
& BS_FLAT
) ? BF_FLAT
: 0));
1007 InflateRect(&rc
, -7, 1);
1008 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rc
);
1010 if (dtFlags
!= (UINT
)-1)
1012 /* Because buttons have CS_PARENTDC class style, there is a chance
1013 * that label will be drawn out of client rect.
1014 * But Windows doesn't clip label's rect, so do I.
1017 /* There is 1-pixel margin at the left, right, and bottom */
1018 rc
.left
--; rc
.right
++; rc
.bottom
++;
1019 FillRect(hDC
, &rc
, hbr
);
1020 rc
.left
++; rc
.right
--; rc
.bottom
--;
1022 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rc
);
1024 SelectClipRgn( hDC
, hrgn
);
1025 if (hrgn
) DeleteObject( hrgn
);
1029 /**********************************************************************
1030 * User Button Functions
1033 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1038 LONG state
= get_button_state( hwnd
);
1041 GetClientRect( hwnd
, &rc
);
1043 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1045 parent
= GetParent(hwnd
);
1046 if (!parent
) parent
= hwnd
;
1047 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1048 if (!hBrush
) /* did the app forget to call defwindowproc ? */
1049 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
1050 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1052 FillRect( hDC
, &rc
, hBrush
);
1053 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
1054 DrawFocusRect( hDC
, &rc
);
1059 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BST_FOCUS
) ? BN_SETFOCUS
: BN_KILLFOCUS
);
1063 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BST_PUSHED
) ? BN_HILITE
: BN_UNHILITE
);
1067 BUTTON_NOTIFY_PARENT( hwnd
, BN_PAINT
);
1073 /**********************************************************************
1074 * Ownerdrawn Button Functions
1077 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1079 LONG state
= get_button_state( hwnd
);
1081 LONG_PTR id
= GetWindowLongPtrW( hwnd
, GWLP_ID
);
1086 dis
.CtlType
= ODT_BUTTON
;
1089 dis
.itemAction
= action
;
1090 dis
.itemState
= ((state
& BST_FOCUS
) ? ODS_FOCUS
: 0) |
1091 ((state
& BST_PUSHED
) ? ODS_SELECTED
: 0) |
1092 (IsWindowEnabled(hwnd
) ? 0: ODS_DISABLED
);
1093 dis
.hwndItem
= hwnd
;
1096 GetClientRect( hwnd
, &dis
.rcItem
);
1098 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1099 parent
= GetParent(hwnd
);
1100 if (!parent
) parent
= hwnd
;
1101 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1103 hrgn
= set_control_clipping( hDC
, &dis
.rcItem
);
1105 SendMessageW( GetParent(hwnd
), WM_DRAWITEM
, id
, (LPARAM
)&dis
);
1106 SelectClipRgn( hDC
, hrgn
);
1107 if (hrgn
) DeleteObject( hrgn
);