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
)
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 state
= get_button_state( hWnd
);
368 if (state
& BUTTON_BTNPRESSED
)
370 state
&= BUTTON_NSTATES
;
371 set_button_state( hWnd
, state
);
372 if (state
& BST_PUSHED
) 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
) | BST_FOCUS
);
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
& ~BST_FOCUS
);
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 btn_type
= wParam
& BS_TYPEMASK
;
453 style
= (style
& ~BS_TYPEMASK
) | btn_type
;
454 WIN_SetStyle( hWnd
, style
, BS_TYPEMASK
& ~style
);
456 /* Only redraw if lParam flag is set.*/
458 InvalidateRect( hWnd
, NULL
, TRUE
);
463 SendMessageW( hWnd
, WM_LBUTTONDOWN
, 0, 0 );
464 SendMessageW( hWnd
, WM_LBUTTONUP
, 0, 0 );
468 /* Check that image format matches button style */
469 switch (style
& (BS_BITMAP
|BS_ICON
))
472 if (wParam
!= IMAGE_BITMAP
) return 0;
475 if (wParam
!= IMAGE_ICON
) return 0;
480 oldHbitmap
= (HBITMAP
)SetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
, lParam
);
481 InvalidateRect( hWnd
, NULL
, FALSE
);
482 return (LRESULT
)oldHbitmap
;
485 return GetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
);
488 return get_button_state( hWnd
) & 3;
491 if (wParam
> maxCheckState
[btn_type
]) wParam
= maxCheckState
[btn_type
];
492 state
= get_button_state( hWnd
);
493 if ((btn_type
== BS_RADIOBUTTON
) || (btn_type
== BS_AUTORADIOBUTTON
))
495 if (wParam
) WIN_SetStyle( hWnd
, WS_TABSTOP
, 0 );
496 else WIN_SetStyle( hWnd
, 0, WS_TABSTOP
);
498 if ((state
& 3) != wParam
)
500 set_button_state( hWnd
, (state
& ~3) | wParam
);
501 paint_button( hWnd
, btn_type
, ODA_SELECT
);
503 if ((btn_type
== BS_AUTORADIOBUTTON
) && (wParam
== BST_CHECKED
) && (style
& WS_CHILD
))
504 BUTTON_CheckAutoRadioButton( hWnd
);
508 return get_button_state( hWnd
);
511 state
= get_button_state( hWnd
);
513 set_button_state( hWnd
, state
| BST_PUSHED
);
515 set_button_state( hWnd
, state
& ~BST_PUSHED
);
517 paint_button( hWnd
, btn_type
, ODA_SELECT
);
521 if(btn_type
== BS_GROUPBOX
) return HTTRANSPARENT
;
524 return unicode
? DefWindowProcW(hWnd
, uMsg
, wParam
, lParam
) :
525 DefWindowProcA(hWnd
, uMsg
, wParam
, lParam
);
530 /**********************************************************************
531 * Convert button styles to flags used by DrawText.
533 static UINT
BUTTON_BStoDT( DWORD style
, DWORD ex_style
)
535 UINT dtStyle
= DT_NOCLIP
; /* We use SelectClipRgn to limit output */
537 /* "Convert" pushlike buttons to pushbuttons */
538 if (style
& BS_PUSHLIKE
)
539 style
&= ~BS_TYPEMASK
;
541 if (!(style
& BS_MULTILINE
))
542 dtStyle
|= DT_SINGLELINE
;
544 dtStyle
|= DT_WORDBREAK
;
546 switch (style
& BS_CENTER
)
548 case BS_LEFT
: /* DT_LEFT is 0 */ break;
549 case BS_RIGHT
: dtStyle
|= DT_RIGHT
; break;
550 case BS_CENTER
: dtStyle
|= DT_CENTER
; break;
552 /* Pushbutton's text is centered by default */
553 if (get_button_type(style
) <= BS_DEFPUSHBUTTON
) dtStyle
|= DT_CENTER
;
554 /* all other flavours have left aligned text */
557 if (ex_style
& WS_EX_RIGHT
) dtStyle
= DT_RIGHT
| (dtStyle
& ~(DT_LEFT
| DT_CENTER
));
559 /* DrawText ignores vertical alignment for multiline text,
560 * but we use these flags to align label manually.
562 if (get_button_type(style
) != BS_GROUPBOX
)
564 switch (style
& BS_VCENTER
)
566 case BS_TOP
: /* DT_TOP is 0 */ break;
567 case BS_BOTTOM
: dtStyle
|= DT_BOTTOM
; break;
568 case BS_VCENTER
: /* fall through */
569 default: dtStyle
|= DT_VCENTER
; break;
573 /* GroupBox's text is always single line and is top aligned. */
574 dtStyle
|= DT_SINGLELINE
;
579 /**********************************************************************
580 * BUTTON_CalcLabelRect
582 * Calculates label's rectangle depending on button style.
584 * Returns flags to be passed to DrawText.
585 * Calculated rectangle doesn't take into account button state
586 * (pushed, etc.). If there is nothing to draw (no text/image) output
587 * rectangle is empty, and return value is (UINT)-1.
589 static UINT
BUTTON_CalcLabelRect(HWND hwnd
, HDC hdc
, RECT
*rc
)
591 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
592 LONG ex_style
= GetWindowLongW( hwnd
, GWL_EXSTYLE
);
596 UINT dtStyle
= BUTTON_BStoDT( style
, ex_style
);
600 /* Calculate label rectangle according to label type */
601 switch (style
& (BS_ICON
|BS_BITMAP
))
604 if (!(text
= get_button_text( hwnd
))) goto empty_rect
;
607 HeapFree( GetProcessHeap(), 0, text
);
610 DrawTextW(hdc
, text
, -1, &r
, dtStyle
| DT_CALCRECT
);
611 HeapFree( GetProcessHeap(), 0, text
);
615 if (!GetIconInfo((HICON
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), &iconInfo
))
618 GetObjectW (iconInfo
.hbmColor
, sizeof(BITMAP
), &bm
);
620 r
.right
= r
.left
+ bm
.bmWidth
;
621 r
.bottom
= r
.top
+ bm
.bmHeight
;
623 DeleteObject(iconInfo
.hbmColor
);
624 DeleteObject(iconInfo
.hbmMask
);
628 if (!GetObjectW( (HANDLE
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), sizeof(BITMAP
), &bm
))
631 r
.right
= r
.left
+ bm
.bmWidth
;
632 r
.bottom
= r
.top
+ bm
.bmHeight
;
642 /* Position label inside bounding rectangle according to
643 * alignment flags. (calculated rect is always left-top aligned).
644 * If label is aligned to any side - shift label in opposite
645 * direction to leave extra space for focus rectangle.
647 switch (dtStyle
& (DT_CENTER
|DT_RIGHT
))
649 case DT_LEFT
: r
.left
++; r
.right
++; break;
650 case DT_CENTER
: n
= r
.right
- r
.left
;
651 r
.left
= rc
->left
+ ((rc
->right
- rc
->left
) - n
) / 2;
652 r
.right
= r
.left
+ n
; break;
653 case DT_RIGHT
: n
= r
.right
- r
.left
;
654 r
.right
= rc
->right
- 1;
655 r
.left
= r
.right
- n
;
659 switch (dtStyle
& (DT_VCENTER
|DT_BOTTOM
))
661 case DT_TOP
: r
.top
++; r
.bottom
++; break;
662 case DT_VCENTER
: n
= r
.bottom
- r
.top
;
663 r
.top
= rc
->top
+ ((rc
->bottom
- rc
->top
) - n
) / 2;
664 r
.bottom
= r
.top
+ n
; break;
665 case DT_BOTTOM
: n
= r
.bottom
- r
.top
;
666 r
.bottom
= rc
->bottom
- 1;
667 r
.top
= r
.bottom
- n
;
676 /**********************************************************************
677 * BUTTON_DrawTextCallback
679 * Callback function used by DrawStateW function.
681 static BOOL CALLBACK
BUTTON_DrawTextCallback(HDC hdc
, LPARAM lp
, WPARAM wp
, int cx
, int cy
)
689 DrawTextW(hdc
, (LPCWSTR
)lp
, -1, &rc
, (UINT
)wp
);
694 /**********************************************************************
697 * Common function for drawing button label.
699 static void BUTTON_DrawLabel(HWND hwnd
, HDC hdc
, UINT dtFlags
, const RECT
*rc
)
701 DRAWSTATEPROC lpOutputProc
= NULL
;
705 UINT flags
= IsWindowEnabled(hwnd
) ? DSS_NORMAL
: DSS_DISABLED
;
706 LONG state
= get_button_state( hwnd
);
707 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
710 /* FIXME: To draw disabled label in Win31 look-and-feel, we probably
711 * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION).
712 * I don't have Win31 on hand to verify that, so I leave it as is.
715 if ((style
& BS_PUSHLIKE
) && (state
& BST_INDETERMINATE
))
717 hbr
= GetSysColorBrush(COLOR_GRAYTEXT
);
721 switch (style
& (BS_ICON
|BS_BITMAP
))
724 /* DST_COMPLEX -- is 0 */
725 lpOutputProc
= BUTTON_DrawTextCallback
;
726 if (!(text
= get_button_text( hwnd
))) return;
733 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
738 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
745 DrawStateW(hdc
, hbr
, lpOutputProc
, lp
, wp
, rc
->left
, rc
->top
,
746 rc
->right
- rc
->left
, rc
->bottom
- rc
->top
, flags
);
747 HeapFree( GetProcessHeap(), 0, text
);
750 /**********************************************************************
751 * Push Button Functions
753 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
756 UINT dtFlags
, uState
;
760 COLORREF oldTxtColor
;
762 LONG state
= get_button_state( hwnd
);
763 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
764 BOOL pushedState
= (state
& BST_PUSHED
);
768 GetClientRect( hwnd
, &rc
);
770 /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
771 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
772 parent
= GetParent(hwnd
);
773 if (!parent
) parent
= hwnd
;
774 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
776 hrgn
= set_control_clipping( hDC
, &rc
);
778 hOldPen
= SelectObject(hDC
, SYSCOLOR_GetPen(COLOR_WINDOWFRAME
));
779 hOldBrush
= SelectObject(hDC
,GetSysColorBrush(COLOR_BTNFACE
));
780 oldBkMode
= SetBkMode(hDC
, TRANSPARENT
);
782 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
784 if (action
!= ODA_FOCUS
)
785 Rectangle(hDC
, rc
.left
, rc
.top
, rc
.right
, rc
.bottom
);
786 InflateRect( &rc
, -1, -1 );
789 /* completely skip the drawing if only focus has changed */
790 if (action
== ODA_FOCUS
) goto draw_focus
;
792 uState
= DFCS_BUTTONPUSH
;
796 else if (pushedState
)
798 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
801 uState
|= DFCS_PUSHED
;
804 if (state
& (BST_CHECKED
| BST_INDETERMINATE
))
805 uState
|= DFCS_CHECKED
;
807 DrawFrameControl( hDC
, &rc
, DFC_BUTTON
, uState
);
809 /* draw button label */
811 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &r
);
813 if (dtFlags
== (UINT
)-1L)
817 OffsetRect(&r
, 1, 1);
819 oldTxtColor
= SetTextColor( hDC
, GetSysColor(COLOR_BTNTEXT
) );
821 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &r
);
823 SetTextColor( hDC
, oldTxtColor
);
826 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
828 InflateRect( &rc
, -2, -2 );
829 DrawFocusRect( hDC
, &rc
);
833 SelectObject( hDC
, hOldPen
);
834 SelectObject( hDC
, hOldBrush
);
835 SetBkMode(hDC
, oldBkMode
);
836 SelectClipRgn( hDC
, hrgn
);
837 if (hrgn
) DeleteObject( hrgn
);
840 /**********************************************************************
841 * Check Box & Radio Button Functions
844 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
846 RECT rbox
, rtext
, client
;
851 LONG state
= get_button_state( hwnd
);
852 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
856 if (style
& BS_PUSHLIKE
)
858 PB_Paint( hwnd
, hDC
, action
);
862 GetClientRect(hwnd
, &client
);
863 rbox
= rtext
= client
;
865 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
867 parent
= GetParent(hwnd
);
868 if (!parent
) parent
= hwnd
;
869 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
,
870 (WPARAM
)hDC
, (LPARAM
)hwnd
);
871 if (!hBrush
) /* did the app forget to call defwindowproc ? */
872 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
873 (WPARAM
)hDC
, (LPARAM
)hwnd
);
874 hrgn
= set_control_clipping( hDC
, &client
);
876 if (style
& BS_LEFTTEXT
)
878 /* magic +4 is what CTL3D expects */
880 rtext
.right
-= checkBoxWidth
+ 4;
881 rbox
.left
= rbox
.right
- checkBoxWidth
;
885 rtext
.left
+= checkBoxWidth
+ 4;
886 rbox
.right
= checkBoxWidth
;
889 /* Since WM_ERASEBKGND does nothing, first prepare background */
890 if (action
== ODA_SELECT
) FillRect( hDC
, &rbox
, hBrush
);
891 if (action
== ODA_DRAWENTIRE
) FillRect( hDC
, &client
, hBrush
);
895 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rtext
);
897 /* Only adjust rbox when rtext is valid */
898 if (dtFlags
!= (UINT
)-1L)
900 rbox
.top
= rtext
.top
;
901 rbox
.bottom
= rtext
.bottom
;
904 /* Draw the check-box bitmap */
905 if (action
== ODA_DRAWENTIRE
|| action
== ODA_SELECT
)
909 if ((get_button_type(style
) == BS_RADIOBUTTON
) ||
910 (get_button_type(style
) == BS_AUTORADIOBUTTON
)) flags
= DFCS_BUTTONRADIO
;
911 else if (state
& BST_INDETERMINATE
) flags
= DFCS_BUTTON3STATE
;
912 else flags
= DFCS_BUTTONCHECK
;
914 if (state
& (BST_CHECKED
| BST_INDETERMINATE
)) flags
|= DFCS_CHECKED
;
915 if (state
& BST_PUSHED
) flags
|= DFCS_PUSHED
;
917 if (style
& WS_DISABLED
) flags
|= DFCS_INACTIVE
;
919 /* rbox must have the correct height */
920 delta
= rbox
.bottom
- rbox
.top
- checkBoxHeight
;
922 if (style
& BS_TOP
) {
924 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
926 rbox
.top
-= -delta
/2 + 1;
927 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
929 } else if (style
& BS_BOTTOM
) {
931 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
933 rbox
.bottom
+= -delta
/2 + 1;
934 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
936 } else { /* Default */
938 int ofs
= (delta
/ 2);
939 rbox
.bottom
-= ofs
+ 1;
940 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
941 } else if (delta
< 0) {
942 int ofs
= (-delta
/ 2);
944 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
948 DrawFrameControl( hDC
, &rbox
, DFC_BUTTON
, flags
);
951 if (dtFlags
== (UINT
)-1L) /* Noting to draw */
954 if (action
== ODA_DRAWENTIRE
)
955 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rtext
);
958 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
962 IntersectRect(&rtext
, &rtext
, &client
);
963 DrawFocusRect( hDC
, &rtext
);
965 SelectClipRgn( hDC
, hrgn
);
966 if (hrgn
) DeleteObject( hrgn
);
970 /**********************************************************************
971 * BUTTON_CheckAutoRadioButton
973 * hwnd is checked, uncheck every other auto radio button in group
975 static void BUTTON_CheckAutoRadioButton( HWND hwnd
)
977 HWND parent
, sibling
, start
;
979 parent
= GetParent(hwnd
);
980 /* make sure that starting control is not disabled or invisible */
981 start
= sibling
= GetNextDlgGroupItem( parent
, hwnd
, TRUE
);
985 if ((hwnd
!= sibling
) &&
986 ((GetWindowLongW( sibling
, GWL_STYLE
) & BS_TYPEMASK
) == BS_AUTORADIOBUTTON
))
987 SendMessageW( sibling
, BM_SETCHECK
, BST_UNCHECKED
, 0 );
988 sibling
= GetNextDlgGroupItem( parent
, sibling
, FALSE
);
989 } while (sibling
!= start
);
993 /**********************************************************************
994 * Group Box Functions
997 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1004 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
1008 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1009 /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
1010 parent
= GetParent(hwnd
);
1011 if (!parent
) parent
= hwnd
;
1012 hbr
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1013 if (!hbr
) /* did the app forget to call defwindowproc ? */
1014 hbr
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
1015 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1016 GetClientRect( hwnd
, &rc
);
1018 hrgn
= set_control_clipping( hDC
, &rc
);
1020 GetTextMetricsW (hDC
, &tm
);
1021 rcFrame
.top
+= (tm
.tmHeight
/ 2) - 1;
1022 DrawEdge (hDC
, &rcFrame
, EDGE_ETCHED
, BF_RECT
| ((style
& BS_FLAT
) ? BF_FLAT
: 0));
1024 InflateRect(&rc
, -7, 1);
1025 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rc
);
1027 if (dtFlags
!= (UINT
)-1)
1029 /* Because buttons have CS_PARENTDC class style, there is a chance
1030 * that label will be drawn out of client rect.
1031 * But Windows doesn't clip label's rect, so do I.
1034 /* There is 1-pixel margin at the left, right, and bottom */
1035 rc
.left
--; rc
.right
++; rc
.bottom
++;
1036 FillRect(hDC
, &rc
, hbr
);
1037 rc
.left
++; rc
.right
--; rc
.bottom
--;
1039 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rc
);
1041 SelectClipRgn( hDC
, hrgn
);
1042 if (hrgn
) DeleteObject( hrgn
);
1046 /**********************************************************************
1047 * User Button Functions
1050 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1055 LONG state
= get_button_state( hwnd
);
1058 GetClientRect( hwnd
, &rc
);
1060 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1062 parent
= GetParent(hwnd
);
1063 if (!parent
) parent
= hwnd
;
1064 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1065 if (!hBrush
) /* did the app forget to call defwindowproc ? */
1066 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
1067 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1069 FillRect( hDC
, &rc
, hBrush
);
1070 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
1071 DrawFocusRect( hDC
, &rc
);
1076 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BST_FOCUS
) ? BN_SETFOCUS
: BN_KILLFOCUS
);
1080 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BST_PUSHED
) ? BN_HILITE
: BN_UNHILITE
);
1084 BUTTON_NOTIFY_PARENT( hwnd
, BN_PAINT
);
1090 /**********************************************************************
1091 * Ownerdrawn Button Functions
1094 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1096 LONG state
= get_button_state( hwnd
);
1098 LONG_PTR id
= GetWindowLongPtrW( hwnd
, GWLP_ID
);
1100 HFONT hFont
, hPrevFont
= 0;
1103 dis
.CtlType
= ODT_BUTTON
;
1106 dis
.itemAction
= action
;
1107 dis
.itemState
= ((state
& BST_FOCUS
) ? ODS_FOCUS
: 0) |
1108 ((state
& BST_PUSHED
) ? ODS_SELECTED
: 0) |
1109 (IsWindowEnabled(hwnd
) ? 0: ODS_DISABLED
);
1110 dis
.hwndItem
= hwnd
;
1113 GetClientRect( hwnd
, &dis
.rcItem
);
1115 if ((hFont
= get_button_font( hwnd
))) hPrevFont
= SelectObject( hDC
, hFont
);
1116 parent
= GetParent(hwnd
);
1117 if (!parent
) parent
= hwnd
;
1118 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1120 hrgn
= set_control_clipping( hDC
, &dis
.rcItem
);
1122 SendMessageW( GetParent(hwnd
), WM_DRAWITEM
, id
, (LPARAM
)&dis
);
1123 if (hPrevFont
) SelectObject(hDC
, hPrevFont
);
1124 SelectClipRgn( hDC
, hrgn
);
1125 if (hrgn
) DeleteObject( hrgn
);