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 /* undocumented flags */
89 #define BUTTON_NSTATES 0x0F
90 #define BUTTON_BTNPRESSED 0x40
91 #define BUTTON_UNKNOWN2 0x20
92 #define BUTTON_UNKNOWN3 0x10
94 #define BUTTON_NOTIFY_PARENT(hWnd, code) \
95 do { /* Notify parent which has created this button control */ \
96 TRACE("notification " #code " sent to hwnd=%p\n", GetParent(hWnd)); \
97 SendMessageW(GetParent(hWnd), WM_COMMAND, \
98 MAKEWPARAM(GetWindowLongPtrW((hWnd),GWLP_ID), (code)), \
102 static UINT
BUTTON_CalcLabelRect( HWND hwnd
, HDC hdc
, RECT
*rc
);
103 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
104 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
105 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
106 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
107 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
108 static void BUTTON_CheckAutoRadioButton( HWND hwnd
);
110 #define MAX_BTN_TYPE 16
112 static const WORD maxCheckState
[MAX_BTN_TYPE
] =
114 BST_UNCHECKED
, /* BS_PUSHBUTTON */
115 BST_UNCHECKED
, /* BS_DEFPUSHBUTTON */
116 BST_CHECKED
, /* BS_CHECKBOX */
117 BST_CHECKED
, /* BS_AUTOCHECKBOX */
118 BST_CHECKED
, /* BS_RADIOBUTTON */
119 BST_INDETERMINATE
, /* BS_3STATE */
120 BST_INDETERMINATE
, /* BS_AUTO3STATE */
121 BST_UNCHECKED
, /* BS_GROUPBOX */
122 BST_UNCHECKED
, /* BS_USERBUTTON */
123 BST_CHECKED
, /* BS_AUTORADIOBUTTON */
124 BST_UNCHECKED
, /* BS_PUSHBOX */
125 BST_UNCHECKED
/* BS_OWNERDRAW */
128 typedef void (*pfPaint
)( HWND hwnd
, HDC hdc
, UINT action
);
130 static const pfPaint btnPaintFunc
[MAX_BTN_TYPE
] =
132 PB_Paint
, /* BS_PUSHBUTTON */
133 PB_Paint
, /* BS_DEFPUSHBUTTON */
134 CB_Paint
, /* BS_CHECKBOX */
135 CB_Paint
, /* BS_AUTOCHECKBOX */
136 CB_Paint
, /* BS_RADIOBUTTON */
137 CB_Paint
, /* BS_3STATE */
138 CB_Paint
, /* BS_AUTO3STATE */
139 GB_Paint
, /* BS_GROUPBOX */
140 UB_Paint
, /* BS_USERBUTTON */
141 CB_Paint
, /* BS_AUTORADIOBUTTON */
142 NULL
, /* BS_PUSHBOX */
143 OB_Paint
/* BS_OWNERDRAW */
146 static HBITMAP hbitmapCheckBoxes
= 0;
147 static WORD checkBoxWidth
= 0, checkBoxHeight
= 0;
150 /*********************************************************************
151 * button class descriptor
153 static const WCHAR buttonW
[] = {'B','u','t','t','o','n',0};
154 const struct builtin_class_descr BUTTON_builtin_class
=
157 CS_DBLCLKS
| CS_VREDRAW
| CS_HREDRAW
| CS_PARENTDC
, /* style */
158 WINPROC_BUTTON
, /* proc */
159 NB_EXTRA_BYTES
, /* extra */
160 IDC_ARROW
, /* cursor */
165 static inline LONG
get_button_state( HWND hwnd
)
167 return GetWindowLongW( hwnd
, STATE_GWL_OFFSET
);
170 static inline void set_button_state( HWND hwnd
, LONG state
)
172 SetWindowLongW( hwnd
, STATE_GWL_OFFSET
, state
);
175 static inline HFONT
get_button_font( HWND hwnd
)
177 return (HFONT
)GetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
);
180 static inline void set_button_font( HWND hwnd
, HFONT font
)
182 SetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
, (LONG_PTR
)font
);
185 static inline UINT
get_button_type( LONG window_style
)
187 return (window_style
& BS_TYPEMASK
);
190 /* paint a button of any type */
191 static inline void paint_button( HWND hwnd
, LONG style
, UINT action
)
193 if (btnPaintFunc
[style
] && IsWindowVisible(hwnd
))
195 HDC hdc
= GetDC( hwnd
);
196 btnPaintFunc
[style
]( hwnd
, hdc
, action
);
197 ReleaseDC( hwnd
, hdc
);
201 /* retrieve the button text; returned buffer must be freed by caller */
202 static inline WCHAR
*get_button_text( HWND hwnd
)
204 static const INT len
= 512;
205 WCHAR
*buffer
= HeapAlloc( GetProcessHeap(), 0, (len
+ 1) * sizeof(WCHAR
) );
206 if (buffer
) InternalGetWindowText( hwnd
, buffer
, len
+ 1 );
210 /***********************************************************************
211 * ButtonWndProc_common
213 LRESULT
ButtonWndProc_common(HWND hWnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
, BOOL unicode
)
217 LONG style
= GetWindowLongW( hWnd
, GWL_STYLE
);
218 UINT btn_type
= get_button_type( style
);
222 if (!IsWindow( hWnd
)) return 0;
224 pt
.x
= (short)LOWORD(lParam
);
225 pt
.y
= (short)HIWORD(lParam
);
233 case BS_PUSHBUTTON
: return DLGC_BUTTON
| DLGC_UNDEFPUSHBUTTON
;
234 case BS_DEFPUSHBUTTON
: return DLGC_BUTTON
| DLGC_DEFPUSHBUTTON
;
236 case BS_AUTORADIOBUTTON
: return DLGC_BUTTON
| DLGC_RADIOBUTTON
;
237 case BS_GROUPBOX
: return DLGC_STATIC
;
238 default: return DLGC_BUTTON
;
242 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
246 if (!hbitmapCheckBoxes
)
249 hbitmapCheckBoxes
= LoadBitmapW(0, MAKEINTRESOURCEW(OBM_CHECKBOXES
));
250 GetObjectW( hbitmapCheckBoxes
, sizeof(bmp
), &bmp
);
251 checkBoxWidth
= bmp
.bmWidth
/ 4;
252 checkBoxHeight
= bmp
.bmHeight
/ 3;
254 if (btn_type
>= MAX_BTN_TYPE
)
255 return -1; /* abort */
257 /* XP turns a BS_USERBUTTON into BS_PUSHBUTTON */
258 if (btn_type
== BS_USERBUTTON
)
260 style
= (style
& ~BS_TYPEMASK
) | BS_PUSHBUTTON
;
261 WIN_SetStyle( hWnd
, style
, BS_TYPEMASK
& ~style
);
263 set_button_state( hWnd
, BST_UNCHECKED
);
267 if (btn_type
== BS_OWNERDRAW
)
269 HDC hdc
= (HDC
)wParam
;
272 HWND parent
= GetParent(hWnd
);
273 if (!parent
) parent
= hWnd
;
274 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hdc
, (LPARAM
)hWnd
);
275 if (!hBrush
) /* did the app forget to call defwindowproc ? */
276 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
277 (WPARAM
)hdc
, (LPARAM
)hWnd
);
278 GetClientRect(hWnd
, &rc
);
279 FillRect(hdc
, &rc
, hBrush
);
287 HDC hdc
= wParam
? (HDC
)wParam
: BeginPaint( hWnd
, &ps
);
288 if (btnPaintFunc
[btn_type
])
290 int nOldMode
= SetBkMode( hdc
, OPAQUE
);
291 (btnPaintFunc
[btn_type
])( hWnd
, hdc
, ODA_DRAWENTIRE
);
292 SetBkMode(hdc
, nOldMode
); /* reset painting mode */
294 if ( !wParam
) EndPaint( hWnd
, &ps
);
299 if (wParam
== VK_SPACE
)
301 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
302 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
307 case WM_LBUTTONDBLCLK
:
308 if(style
& BS_NOTIFY
||
309 btn_type
== BS_RADIOBUTTON
||
310 btn_type
== BS_USERBUTTON
||
311 btn_type
== BS_OWNERDRAW
)
313 BUTTON_NOTIFY_PARENT(hWnd
, BN_DOUBLECLICKED
);
320 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
321 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
325 if (wParam
!= VK_SPACE
)
329 state
= get_button_state( hWnd
);
330 if (!(state
& BUTTON_BTNPRESSED
)) break;
331 state
&= BUTTON_NSTATES
;
332 set_button_state( hWnd
, state
);
333 if (!(state
& BST_PUSHED
))
338 SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
339 GetClientRect( hWnd
, &rect
);
340 if (uMsg
== WM_KEYUP
|| PtInRect( &rect
, pt
))
342 state
= get_button_state( hWnd
);
345 case BS_AUTOCHECKBOX
:
346 SendMessageW( hWnd
, BM_SETCHECK
, !(state
& BST_CHECKED
), 0 );
348 case BS_AUTORADIOBUTTON
:
349 SendMessageW( hWnd
, BM_SETCHECK
, TRUE
, 0 );
352 SendMessageW( hWnd
, BM_SETCHECK
,
353 (state
& BST_INDETERMINATE
) ? 0 : ((state
& 3) + 1), 0 );
357 BUTTON_NOTIFY_PARENT(hWnd
, BN_CLICKED
);
365 case WM_CAPTURECHANGED
:
366 TRACE("WM_CAPTURECHANGED %p\n", hWnd
);
367 if (hWnd
== (HWND
)lParam
) break;
368 state
= get_button_state( hWnd
);
369 if (state
& BUTTON_BTNPRESSED
)
371 state
&= BUTTON_NSTATES
;
372 set_button_state( hWnd
, state
);
373 if (state
& BST_PUSHED
) SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
378 if ((wParam
& MK_LBUTTON
) && GetCapture() == hWnd
)
380 GetClientRect( hWnd
, &rect
);
381 SendMessageW( hWnd
, BM_SETSTATE
, PtInRect(&rect
, pt
), 0 );
387 /* Clear an old text here as Windows does */
388 if (IsWindowVisible(hWnd
))
390 HDC hdc
= GetDC(hWnd
);
393 HWND parent
= GetParent(hWnd
);
394 UINT message
= (btn_type
== BS_PUSHBUTTON
||
395 btn_type
== BS_DEFPUSHBUTTON
||
396 btn_type
== BS_USERBUTTON
||
397 btn_type
== BS_OWNERDRAW
) ?
398 WM_CTLCOLORBTN
: WM_CTLCOLORSTATIC
;
400 if (!parent
) parent
= hWnd
;
401 hbrush
= (HBRUSH
)SendMessageW(parent
, message
,
402 (WPARAM
)hdc
, (LPARAM
)hWnd
);
403 if (!hbrush
) /* did the app forget to call DefWindowProc ? */
404 hbrush
= (HBRUSH
)DefWindowProcW(parent
, message
,
405 (WPARAM
)hdc
, (LPARAM
)hWnd
);
407 GetClientRect(hWnd
, &client
);
409 BUTTON_CalcLabelRect(hWnd
, hdc
, &rc
);
410 /* Clip by client rect bounds */
411 if (rc
.right
> client
.right
) rc
.right
= client
.right
;
412 if (rc
.bottom
> client
.bottom
) rc
.bottom
= client
.bottom
;
413 FillRect(hdc
, &rc
, hbrush
);
414 ReleaseDC(hWnd
, hdc
);
417 if (unicode
) DefWindowProcW( hWnd
, WM_SETTEXT
, wParam
, lParam
);
418 else DefWindowProcA( hWnd
, WM_SETTEXT
, wParam
, lParam
);
419 if (btn_type
== BS_GROUPBOX
) /* Yes, only for BS_GROUPBOX */
420 InvalidateRect( hWnd
, NULL
, TRUE
);
422 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
423 return 1; /* success. FIXME: check text length */
427 set_button_font( hWnd
, (HFONT
)wParam
);
428 if (lParam
) InvalidateRect(hWnd
, NULL
, TRUE
);
432 return (LRESULT
)get_button_font( hWnd
);
435 TRACE("WM_SETFOCUS %p\n",hWnd
);
436 set_button_state( hWnd
, get_button_state(hWnd
) | BST_FOCUS
);
437 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
438 if (style
& BS_NOTIFY
)
439 BUTTON_NOTIFY_PARENT(hWnd
, BN_SETFOCUS
);
443 TRACE("WM_KILLFOCUS %p\n",hWnd
);
444 state
= get_button_state( hWnd
);
445 set_button_state( hWnd
, state
& ~BST_FOCUS
);
446 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
448 if ((state
& BUTTON_BTNPRESSED
) && GetCapture() == hWnd
)
450 if (style
& BS_NOTIFY
)
451 BUTTON_NOTIFY_PARENT(hWnd
, BN_KILLFOCUS
);
453 InvalidateRect( hWnd
, NULL
, FALSE
);
456 case WM_SYSCOLORCHANGE
:
457 InvalidateRect( hWnd
, NULL
, FALSE
);
461 btn_type
= wParam
& BS_TYPEMASK
;
462 style
= (style
& ~BS_TYPEMASK
) | btn_type
;
463 WIN_SetStyle( hWnd
, style
, BS_TYPEMASK
& ~style
);
465 /* Only redraw if lParam flag is set.*/
467 InvalidateRect( hWnd
, NULL
, TRUE
);
472 SendMessageW( hWnd
, WM_LBUTTONDOWN
, 0, 0 );
473 SendMessageW( hWnd
, WM_LBUTTONUP
, 0, 0 );
477 /* Check that image format matches button style */
478 switch (style
& (BS_BITMAP
|BS_ICON
))
481 if (wParam
!= IMAGE_BITMAP
) return 0;
484 if (wParam
!= IMAGE_ICON
) return 0;
489 oldHbitmap
= (HBITMAP
)SetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
, lParam
);
490 InvalidateRect( hWnd
, NULL
, FALSE
);
491 return (LRESULT
)oldHbitmap
;
494 return GetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
);
497 return get_button_state( hWnd
) & 3;
500 if (wParam
> maxCheckState
[btn_type
]) wParam
= maxCheckState
[btn_type
];
501 state
= get_button_state( hWnd
);
502 if ((btn_type
== BS_RADIOBUTTON
) || (btn_type
== BS_AUTORADIOBUTTON
))
504 if (wParam
) WIN_SetStyle( hWnd
, WS_TABSTOP
, 0 );
505 else WIN_SetStyle( hWnd
, 0, WS_TABSTOP
);
507 if ((state
& 3) != wParam
)
509 set_button_state( hWnd
, (state
& ~3) | wParam
);
510 paint_button( hWnd
, btn_type
, ODA_SELECT
);
512 if ((btn_type
== BS_AUTORADIOBUTTON
) && (wParam
== BST_CHECKED
) && (style
& WS_CHILD
))
513 BUTTON_CheckAutoRadioButton( hWnd
);
517 return get_button_state( hWnd
);
520 state
= get_button_state( hWnd
);
522 set_button_state( hWnd
, state
| BST_PUSHED
);
524 set_button_state( hWnd
, state
& ~BST_PUSHED
);
526 paint_button( hWnd
, btn_type
, ODA_SELECT
);
530 if(btn_type
== BS_GROUPBOX
) return HTTRANSPARENT
;
533 return unicode
? DefWindowProcW(hWnd
, uMsg
, wParam
, lParam
) :
534 DefWindowProcA(hWnd
, uMsg
, wParam
, lParam
);
539 /**********************************************************************
540 * Convert button styles to flags used by DrawText.
542 static UINT
BUTTON_BStoDT( DWORD style
, DWORD ex_style
)
544 UINT dtStyle
= DT_NOCLIP
; /* We use SelectClipRgn to limit output */
546 /* "Convert" pushlike buttons to pushbuttons */
547 if (style
& BS_PUSHLIKE
)
548 style
&= ~BS_TYPEMASK
;
550 if (!(style
& BS_MULTILINE
))
551 dtStyle
|= DT_SINGLELINE
;
553 dtStyle
|= DT_WORDBREAK
;
555 switch (style
& BS_CENTER
)
557 case BS_LEFT
: /* DT_LEFT is 0 */ break;
558 case BS_RIGHT
: dtStyle
|= DT_RIGHT
; break;
559 case BS_CENTER
: dtStyle
|= DT_CENTER
; break;
561 /* Pushbutton's text is centered by default */
562 if (get_button_type(style
) <= BS_DEFPUSHBUTTON
) dtStyle
|= DT_CENTER
;
563 /* all other flavours have left aligned text */
566 if (ex_style
& WS_EX_RIGHT
) dtStyle
= DT_RIGHT
| (dtStyle
& ~(DT_LEFT
| DT_CENTER
));
568 /* DrawText ignores vertical alignment for multiline text,
569 * but we use these flags to align label manually.
571 if (get_button_type(style
) != BS_GROUPBOX
)
573 switch (style
& BS_VCENTER
)
575 case BS_TOP
: /* DT_TOP is 0 */ break;
576 case BS_BOTTOM
: dtStyle
|= DT_BOTTOM
; break;
577 case BS_VCENTER
: /* fall through */
578 default: dtStyle
|= DT_VCENTER
; break;
582 /* GroupBox's text is always single line and is top aligned. */
583 dtStyle
|= DT_SINGLELINE
;
588 /**********************************************************************
589 * BUTTON_CalcLabelRect
591 * Calculates label's rectangle depending on button style.
593 * Returns flags to be passed to DrawText.
594 * Calculated rectangle doesn't take into account button state
595 * (pushed, etc.). If there is nothing to draw (no text/image) output
596 * rectangle is empty, and return value is (UINT)-1.
598 static UINT
BUTTON_CalcLabelRect(HWND hwnd
, HDC hdc
, RECT
*rc
)
600 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
601 LONG ex_style
= GetWindowLongW( hwnd
, GWL_EXSTYLE
);
605 UINT dtStyle
= BUTTON_BStoDT( style
, ex_style
);
609 /* Calculate label rectangle according to label type */
610 switch (style
& (BS_ICON
|BS_BITMAP
))
613 if (!(text
= get_button_text( hwnd
))) goto empty_rect
;
616 HeapFree( GetProcessHeap(), 0, text
);
619 DrawTextW(hdc
, text
, -1, &r
, dtStyle
| DT_CALCRECT
);
620 HeapFree( GetProcessHeap(), 0, text
);
624 if (!GetIconInfo((HICON
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), &iconInfo
))
627 GetObjectW (iconInfo
.hbmColor
, sizeof(BITMAP
), &bm
);
629 r
.right
= r
.left
+ bm
.bmWidth
;
630 r
.bottom
= r
.top
+ bm
.bmHeight
;
632 DeleteObject(iconInfo
.hbmColor
);
633 DeleteObject(iconInfo
.hbmMask
);
637 if (!GetObjectW( (HANDLE
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), sizeof(BITMAP
), &bm
))
640 r
.right
= r
.left
+ bm
.bmWidth
;
641 r
.bottom
= r
.top
+ bm
.bmHeight
;
651 /* Position label inside bounding rectangle according to
652 * alignment flags. (calculated rect is always left-top aligned).
653 * If label is aligned to any side - shift label in opposite
654 * direction to leave extra space for focus rectangle.
656 switch (dtStyle
& (DT_CENTER
|DT_RIGHT
))
658 case DT_LEFT
: r
.left
++; r
.right
++; break;
659 case DT_CENTER
: n
= r
.right
- r
.left
;
660 r
.left
= rc
->left
+ ((rc
->right
- rc
->left
) - n
) / 2;
661 r
.right
= r
.left
+ n
; break;
662 case DT_RIGHT
: n
= r
.right
- r
.left
;
663 r
.right
= rc
->right
- 1;
664 r
.left
= r
.right
- n
;
668 switch (dtStyle
& (DT_VCENTER
|DT_BOTTOM
))
670 case DT_TOP
: r
.top
++; r
.bottom
++; break;
671 case DT_VCENTER
: n
= r
.bottom
- r
.top
;
672 r
.top
= rc
->top
+ ((rc
->bottom
- rc
->top
) - n
) / 2;
673 r
.bottom
= r
.top
+ n
; break;
674 case DT_BOTTOM
: n
= r
.bottom
- r
.top
;
675 r
.bottom
= rc
->bottom
- 1;
676 r
.top
= r
.bottom
- n
;
685 /**********************************************************************
686 * BUTTON_DrawTextCallback
688 * Callback function used by DrawStateW function.
690 static BOOL CALLBACK
BUTTON_DrawTextCallback(HDC hdc
, LPARAM lp
, WPARAM wp
, int cx
, int cy
)
698 DrawTextW(hdc
, (LPCWSTR
)lp
, -1, &rc
, (UINT
)wp
);
703 /**********************************************************************
706 * Common function for drawing button label.
708 static void BUTTON_DrawLabel(HWND hwnd
, HDC hdc
, UINT dtFlags
, const RECT
*rc
)
710 DRAWSTATEPROC lpOutputProc
= NULL
;
714 UINT flags
= IsWindowEnabled(hwnd
) ? DSS_NORMAL
: DSS_DISABLED
;
715 LONG state
= get_button_state( hwnd
);
716 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
719 /* FIXME: To draw disabled label in Win31 look-and-feel, we probably
720 * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION).
721 * I don't have Win31 on hand to verify that, so I leave it as is.
724 if ((style
& BS_PUSHLIKE
) && (state
& BST_INDETERMINATE
))
726 hbr
= GetSysColorBrush(COLOR_GRAYTEXT
);
730 switch (style
& (BS_ICON
|BS_BITMAP
))
733 /* DST_COMPLEX -- is 0 */
734 lpOutputProc
= BUTTON_DrawTextCallback
;
735 if (!(text
= get_button_text( hwnd
))) return;
742 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
747 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
754 DrawStateW(hdc
, hbr
, lpOutputProc
, lp
, wp
, rc
->left
, rc
->top
,
755 rc
->right
- rc
->left
, rc
->bottom
- rc
->top
, flags
);
756 HeapFree( GetProcessHeap(), 0, text
);
759 /**********************************************************************
760 * Push Button Functions
762 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
765 UINT dtFlags
, uState
;
769 COLORREF oldTxtColor
;
771 LONG state
= get_button_state( hwnd
);
772 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
773 BOOL pushedState
= (state
& BST_PUSHED
);
777 GetClientRect( hwnd
, &rc
);
779 /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
780 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
781 parent
= GetParent(hwnd
);
782 if (!parent
) parent
= hwnd
;
783 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
785 hrgn
= set_control_clipping( hDC
, &rc
);
787 hOldPen
= SelectObject(hDC
, SYSCOLOR_GetPen(COLOR_WINDOWFRAME
));
788 hOldBrush
= SelectObject(hDC
,GetSysColorBrush(COLOR_BTNFACE
));
789 oldBkMode
= SetBkMode(hDC
, TRANSPARENT
);
791 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
793 if (action
!= ODA_FOCUS
)
794 Rectangle(hDC
, rc
.left
, rc
.top
, rc
.right
, rc
.bottom
);
795 InflateRect( &rc
, -1, -1 );
798 /* completely skip the drawing if only focus has changed */
799 if (action
== ODA_FOCUS
) goto draw_focus
;
801 uState
= DFCS_BUTTONPUSH
;
805 else if (pushedState
)
807 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
810 uState
|= DFCS_PUSHED
;
813 if (state
& (BST_CHECKED
| BST_INDETERMINATE
))
814 uState
|= DFCS_CHECKED
;
816 DrawFrameControl( hDC
, &rc
, DFC_BUTTON
, uState
);
818 /* draw button label */
820 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &r
);
822 if (dtFlags
== (UINT
)-1L)
826 OffsetRect(&r
, 1, 1);
828 oldTxtColor
= SetTextColor( hDC
, GetSysColor(COLOR_BTNTEXT
) );
830 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &r
);
832 SetTextColor( hDC
, oldTxtColor
);
835 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
837 InflateRect( &rc
, -2, -2 );
838 DrawFocusRect( hDC
, &rc
);
842 SelectObject( hDC
, hOldPen
);
843 SelectObject( hDC
, hOldBrush
);
844 SetBkMode(hDC
, oldBkMode
);
845 SelectClipRgn( hDC
, hrgn
);
846 if (hrgn
) DeleteObject( hrgn
);
849 /**********************************************************************
850 * Check Box & Radio Button Functions
853 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
855 RECT rbox
, rtext
, client
;
860 LONG state
= get_button_state( hwnd
);
861 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
865 if (style
& BS_PUSHLIKE
)
867 PB_Paint( hwnd
, hDC
, action
);
871 GetClientRect(hwnd
, &client
);
872 rbox
= rtext
= client
;
874 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
876 parent
= GetParent(hwnd
);
877 if (!parent
) parent
= hwnd
;
878 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
,
879 (WPARAM
)hDC
, (LPARAM
)hwnd
);
880 if (!hBrush
) /* did the app forget to call defwindowproc ? */
881 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
882 (WPARAM
)hDC
, (LPARAM
)hwnd
);
883 hrgn
= set_control_clipping( hDC
, &client
);
885 if (style
& BS_LEFTTEXT
)
887 /* magic +4 is what CTL3D expects */
889 rtext
.right
-= checkBoxWidth
+ 4;
890 rbox
.left
= rbox
.right
- checkBoxWidth
;
894 rtext
.left
+= checkBoxWidth
+ 4;
895 rbox
.right
= checkBoxWidth
;
898 /* Since WM_ERASEBKGND does nothing, first prepare background */
899 if (action
== ODA_SELECT
) FillRect( hDC
, &rbox
, hBrush
);
900 if (action
== ODA_DRAWENTIRE
) FillRect( hDC
, &client
, hBrush
);
904 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rtext
);
906 /* Only adjust rbox when rtext is valid */
907 if (dtFlags
!= (UINT
)-1L)
909 rbox
.top
= rtext
.top
;
910 rbox
.bottom
= rtext
.bottom
;
913 /* Draw the check-box bitmap */
914 if (action
== ODA_DRAWENTIRE
|| action
== ODA_SELECT
)
918 if ((get_button_type(style
) == BS_RADIOBUTTON
) ||
919 (get_button_type(style
) == BS_AUTORADIOBUTTON
)) flags
= DFCS_BUTTONRADIO
;
920 else if (state
& BST_INDETERMINATE
) flags
= DFCS_BUTTON3STATE
;
921 else flags
= DFCS_BUTTONCHECK
;
923 if (state
& (BST_CHECKED
| BST_INDETERMINATE
)) flags
|= DFCS_CHECKED
;
924 if (state
& BST_PUSHED
) flags
|= DFCS_PUSHED
;
926 if (style
& WS_DISABLED
) flags
|= DFCS_INACTIVE
;
928 /* rbox must have the correct height */
929 delta
= rbox
.bottom
- rbox
.top
- checkBoxHeight
;
931 if (style
& BS_TOP
) {
933 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
935 rbox
.top
-= -delta
/2 + 1;
936 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
938 } else if (style
& BS_BOTTOM
) {
940 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
942 rbox
.bottom
+= -delta
/2 + 1;
943 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
945 } else { /* Default */
947 int ofs
= (delta
/ 2);
948 rbox
.bottom
-= ofs
+ 1;
949 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
950 } else if (delta
< 0) {
951 int ofs
= (-delta
/ 2);
953 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
957 DrawFrameControl( hDC
, &rbox
, DFC_BUTTON
, flags
);
960 if (dtFlags
== (UINT
)-1L) /* Noting to draw */
963 if (action
== ODA_DRAWENTIRE
)
964 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rtext
);
967 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
971 IntersectRect(&rtext
, &rtext
, &client
);
972 DrawFocusRect( hDC
, &rtext
);
974 SelectClipRgn( hDC
, hrgn
);
975 if (hrgn
) DeleteObject( hrgn
);
979 /**********************************************************************
980 * BUTTON_CheckAutoRadioButton
982 * hwnd is checked, uncheck every other auto radio button in group
984 static void BUTTON_CheckAutoRadioButton( HWND hwnd
)
986 HWND parent
, sibling
, start
;
988 parent
= GetParent(hwnd
);
989 /* make sure that starting control is not disabled or invisible */
990 start
= sibling
= GetNextDlgGroupItem( parent
, hwnd
, TRUE
);
994 if ((hwnd
!= sibling
) &&
995 ((GetWindowLongW( sibling
, GWL_STYLE
) & BS_TYPEMASK
) == BS_AUTORADIOBUTTON
))
996 SendMessageW( sibling
, BM_SETCHECK
, BST_UNCHECKED
, 0 );
997 sibling
= GetNextDlgGroupItem( parent
, sibling
, FALSE
);
998 } while (sibling
!= start
);
1002 /**********************************************************************
1003 * Group Box Functions
1006 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1013 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
1017 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1018 /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
1019 parent
= GetParent(hwnd
);
1020 if (!parent
) parent
= hwnd
;
1021 hbr
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1022 if (!hbr
) /* did the app forget to call defwindowproc ? */
1023 hbr
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
1024 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1025 GetClientRect( hwnd
, &rc
);
1027 hrgn
= set_control_clipping( hDC
, &rc
);
1029 GetTextMetricsW (hDC
, &tm
);
1030 rcFrame
.top
+= (tm
.tmHeight
/ 2) - 1;
1031 DrawEdge (hDC
, &rcFrame
, EDGE_ETCHED
, BF_RECT
| ((style
& BS_FLAT
) ? BF_FLAT
: 0));
1033 InflateRect(&rc
, -7, 1);
1034 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rc
);
1036 if (dtFlags
!= (UINT
)-1)
1038 /* Because buttons have CS_PARENTDC class style, there is a chance
1039 * that label will be drawn out of client rect.
1040 * But Windows doesn't clip label's rect, so do I.
1043 /* There is 1-pixel margin at the left, right, and bottom */
1044 rc
.left
--; rc
.right
++; rc
.bottom
++;
1045 FillRect(hDC
, &rc
, hbr
);
1046 rc
.left
++; rc
.right
--; rc
.bottom
--;
1048 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rc
);
1050 SelectClipRgn( hDC
, hrgn
);
1051 if (hrgn
) DeleteObject( hrgn
);
1055 /**********************************************************************
1056 * User Button Functions
1059 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1064 LONG state
= get_button_state( hwnd
);
1067 GetClientRect( hwnd
, &rc
);
1069 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1071 parent
= GetParent(hwnd
);
1072 if (!parent
) parent
= hwnd
;
1073 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1074 if (!hBrush
) /* did the app forget to call defwindowproc ? */
1075 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
1076 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1078 FillRect( hDC
, &rc
, hBrush
);
1079 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
1080 DrawFocusRect( hDC
, &rc
);
1085 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BST_FOCUS
) ? BN_SETFOCUS
: BN_KILLFOCUS
);
1089 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BST_PUSHED
) ? BN_HILITE
: BN_UNHILITE
);
1093 BUTTON_NOTIFY_PARENT( hwnd
, BN_PAINT
);
1099 /**********************************************************************
1100 * Ownerdrawn Button Functions
1103 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1105 LONG state
= get_button_state( hwnd
);
1107 LONG_PTR id
= GetWindowLongPtrW( hwnd
, GWLP_ID
);
1109 HFONT hFont
, hPrevFont
= 0;
1112 dis
.CtlType
= ODT_BUTTON
;
1115 dis
.itemAction
= action
;
1116 dis
.itemState
= ((state
& BST_FOCUS
) ? ODS_FOCUS
: 0) |
1117 ((state
& BST_PUSHED
) ? ODS_SELECTED
: 0) |
1118 (IsWindowEnabled(hwnd
) ? 0: ODS_DISABLED
);
1119 dis
.hwndItem
= hwnd
;
1122 GetClientRect( hwnd
, &dis
.rcItem
);
1124 if ((hFont
= get_button_font( hwnd
))) hPrevFont
= SelectObject( hDC
, hFont
);
1125 parent
= GetParent(hwnd
);
1126 if (!parent
) parent
= hwnd
;
1127 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1129 hrgn
= set_control_clipping( hDC
, &dis
.rcItem
);
1131 SendMessageW( GetParent(hwnd
), WM_DRAWITEM
, id
, (LPARAM
)&dis
);
1132 if (hPrevFont
) SelectObject(hDC
, hPrevFont
);
1133 SelectClipRgn( hDC
, hrgn
);
1134 if (hrgn
) DeleteObject( hrgn
);