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
67 #include <wine/debug.h>
68 WINE_DEFAULT_DEBUG_CHANNEL(button
);
70 /* GetWindowLong offsets for window extra information */
71 #define STATE_GWL_OFFSET 0
72 #define HFONT_GWL_OFFSET (sizeof(LONG))
73 #define HIMAGE_GWL_OFFSET (HFONT_GWL_OFFSET+sizeof(HFONT))
74 #define UISTATE_GWL_OFFSET (HIMAGE_GWL_OFFSET+sizeof(HFONT))
75 #define NB_EXTRA_BYTES (UISTATE_GWL_OFFSET+sizeof(LONG))
77 /* undocumented flags */
78 #define BUTTON_NSTATES 0x0F
79 #define BUTTON_BTNPRESSED 0x40
80 #define BUTTON_UNKNOWN2 0x20
81 #define BUTTON_UNKNOWN3 0x10
83 #define BUTTON_BMCLICK 0x100 // ReactOS Need to up to wine!
86 #define BUTTON_NOTIFY_PARENT(hWnd, code) \
87 do { /* Notify parent which has created this button control */ \
88 TRACE("notification " #code " sent to hwnd=%p\n", GetParent(hWnd)); \
89 SendMessageW(GetParent(hWnd), WM_COMMAND, \
90 MAKEWPARAM(GetWindowLongPtrW((hWnd),GWLP_ID), (code)), \
94 static UINT
BUTTON_CalcLabelRect( HWND hwnd
, HDC hdc
, RECT
*rc
);
95 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
96 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
97 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
98 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
99 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
100 static void BUTTON_CheckAutoRadioButton( HWND hwnd
);
102 #define MAX_BTN_TYPE 16
104 static const WORD maxCheckState
[MAX_BTN_TYPE
] =
106 BST_UNCHECKED
, /* BS_PUSHBUTTON */
107 BST_UNCHECKED
, /* BS_DEFPUSHBUTTON */
108 BST_CHECKED
, /* BS_CHECKBOX */
109 BST_CHECKED
, /* BS_AUTOCHECKBOX */
110 BST_CHECKED
, /* BS_RADIOBUTTON */
111 BST_INDETERMINATE
, /* BS_3STATE */
112 BST_INDETERMINATE
, /* BS_AUTO3STATE */
113 BST_UNCHECKED
, /* BS_GROUPBOX */
114 BST_UNCHECKED
, /* BS_USERBUTTON */
115 BST_CHECKED
, /* BS_AUTORADIOBUTTON */
116 BST_UNCHECKED
, /* BS_PUSHBOX */
117 BST_UNCHECKED
/* BS_OWNERDRAW */
120 typedef void (*pfPaint
)( HWND hwnd
, HDC hdc
, UINT action
);
122 static const pfPaint btnPaintFunc
[MAX_BTN_TYPE
] =
124 PB_Paint
, /* BS_PUSHBUTTON */
125 PB_Paint
, /* BS_DEFPUSHBUTTON */
126 CB_Paint
, /* BS_CHECKBOX */
127 CB_Paint
, /* BS_AUTOCHECKBOX */
128 CB_Paint
, /* BS_RADIOBUTTON */
129 CB_Paint
, /* BS_3STATE */
130 CB_Paint
, /* BS_AUTO3STATE */
131 GB_Paint
, /* BS_GROUPBOX */
132 UB_Paint
, /* BS_USERBUTTON */
133 CB_Paint
, /* BS_AUTORADIOBUTTON */
134 NULL
, /* BS_PUSHBOX */
135 OB_Paint
/* BS_OWNERDRAW */
138 /*********************************************************************
139 * button class descriptor
141 static const WCHAR buttonW
[] = {'B','u','t','t','o','n',0};
142 const struct builtin_class_descr BUTTON_builtin_class
=
145 CS_DBLCLKS
| CS_VREDRAW
| CS_HREDRAW
| CS_PARENTDC
, /* style */
147 ButtonWndProcA
, /* procA */
148 ButtonWndProcW
, /* procW */
150 WINPROC_BUTTON
, /* proc */
152 NB_EXTRA_BYTES
, /* extra */
153 IDC_ARROW
, /* cursor */
158 static inline LONG
get_button_state( HWND hwnd
)
160 return GetWindowLongPtrW( hwnd
, STATE_GWL_OFFSET
);
163 static inline void set_button_state( HWND hwnd
, LONG state
)
165 SetWindowLongPtrW( hwnd
, STATE_GWL_OFFSET
, state
);
170 static __inline
void set_ui_state( HWND hwnd
, LONG flags
)
172 SetWindowLongPtrW( hwnd
, UISTATE_GWL_OFFSET
, flags
);
175 static __inline LONG
get_ui_state( HWND hwnd
)
177 return GetWindowLongPtrW( hwnd
, UISTATE_GWL_OFFSET
);
180 #endif /* __REACTOS__ */
182 static inline HFONT
get_button_font( HWND hwnd
)
184 return (HFONT
)GetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
);
187 static inline void set_button_font( HWND hwnd
, HFONT font
)
189 SetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
, (LONG_PTR
)font
);
192 static inline UINT
get_button_type( LONG window_style
)
194 return (window_style
& BS_TYPEMASK
);
197 /* paint a button of any type */
198 static inline void paint_button( HWND hwnd
, LONG style
, UINT action
)
200 if (btnPaintFunc
[style
] && IsWindowVisible(hwnd
))
202 HDC hdc
= GetDC( hwnd
);
203 btnPaintFunc
[style
]( hwnd
, hdc
, action
);
204 ReleaseDC( hwnd
, hdc
);
208 /* retrieve the button text; returned buffer must be freed by caller */
209 static inline WCHAR
*get_button_text( HWND hwnd
)
212 WCHAR
*buffer
= HeapAlloc( GetProcessHeap(), 0, (len
+ 1) * sizeof(WCHAR
) );
213 if (buffer
) InternalGetWindowText( hwnd
, buffer
, len
+ 1 );
218 /* Retrieve the UI state for the control */
219 static BOOL
button_update_uistate(HWND hwnd
, BOOL unicode
)
221 LONG flags
, prevflags
;
224 flags
= DefWindowProcW(hwnd
, WM_QUERYUISTATE
, 0, 0);
226 flags
= DefWindowProcA(hwnd
, WM_QUERYUISTATE
, 0, 0);
228 prevflags
= get_ui_state(hwnd
);
230 if (prevflags
!= flags
)
232 set_ui_state(hwnd
, flags
);
240 /***********************************************************************
241 * ButtonWndProc_common
243 LRESULT WINAPI
ButtonWndProc_common(HWND hWnd
, UINT uMsg
,
244 WPARAM wParam
, LPARAM lParam
, BOOL unicode
)
248 LONG style
= GetWindowLongPtrW( hWnd
, GWL_STYLE
);
249 UINT btn_type
= get_button_type( style
);
255 pWnd
= ValidateHwnd(hWnd
);
260 NtUserSetWindowFNID(hWnd
, FNID_BUTTON
);
264 if (pWnd
->fnid
!= FNID_BUTTON
)
266 ERR("Wrong window class for Button! fnId 0x%x\n",pWnd
->fnid
);
274 if (!IsWindow( hWnd
)) return 0;
277 pt
.x
= (short)LOWORD(lParam
);
278 pt
.y
= (short)HIWORD(lParam
);
286 case BS_PUSHBUTTON
: return DLGC_BUTTON
| DLGC_UNDEFPUSHBUTTON
;
287 case BS_DEFPUSHBUTTON
: return DLGC_BUTTON
| DLGC_DEFPUSHBUTTON
;
289 case BS_AUTORADIOBUTTON
: return DLGC_BUTTON
| DLGC_RADIOBUTTON
;
290 case BS_GROUPBOX
: return DLGC_STATIC
;
291 default: return DLGC_BUTTON
;
295 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
299 if (btn_type
>= MAX_BTN_TYPE
)
300 return -1; /* abort */
302 /* XP turns a BS_USERBUTTON into BS_PUSHBUTTON */
303 if (btn_type
== BS_USERBUTTON
)
305 style
= (style
& ~BS_TYPEMASK
) | BS_PUSHBUTTON
;
307 NtUserAlterWindowStyle(hWnd
, GWL_STYLE
, style
);
309 WIN_SetStyle( hWnd
, style
, BS_TYPEMASK
& ~style
);
312 set_button_state( hWnd
, BST_UNCHECKED
);
314 button_update_uistate( hWnd
, unicode
);
320 NtUserSetWindowFNID(hWnd
, FNID_DESTROY
);
326 if (btn_type
== BS_OWNERDRAW
)
328 HDC hdc
= (HDC
)wParam
;
331 HWND parent
= GetParent(hWnd
);
332 if (!parent
) parent
= hWnd
;
334 hBrush
= GetControlColor( parent
, hWnd
, hdc
, WM_CTLCOLORBTN
);
336 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hdc
, (LPARAM
)hWnd
);
337 if (!hBrush
) /* did the app forget to call defwindowproc ? */
338 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
339 (WPARAM
)hdc
, (LPARAM
)hWnd
);
341 GetClientRect(hWnd
, &rc
);
342 FillRect(hdc
, &rc
, hBrush
);
350 HDC hdc
= wParam
? (HDC
)wParam
: BeginPaint( hWnd
, &ps
);
351 if (btnPaintFunc
[btn_type
])
353 int nOldMode
= SetBkMode( hdc
, OPAQUE
);
354 (btnPaintFunc
[btn_type
])( hWnd
, hdc
, ODA_DRAWENTIRE
);
355 SetBkMode(hdc
, nOldMode
); /* reset painting mode */
357 if ( !wParam
) EndPaint( hWnd
, &ps
);
362 if (wParam
== VK_SPACE
)
364 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
365 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
370 case WM_LBUTTONDBLCLK
:
371 if(style
& BS_NOTIFY
||
372 btn_type
== BS_RADIOBUTTON
||
373 btn_type
== BS_USERBUTTON
||
374 btn_type
== BS_OWNERDRAW
)
376 BUTTON_NOTIFY_PARENT(hWnd
, BN_DOUBLECLICKED
);
383 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
384 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
388 if (wParam
!= VK_SPACE
)
393 BOOL TellParent
= FALSE
; //// ReactOS see note below.
395 state
= get_button_state( hWnd
);
396 if (!(state
& BUTTON_BTNPRESSED
)) break;
397 state
&= BUTTON_NSTATES
;
398 set_button_state( hWnd
, state
);
399 if (!(state
& BST_PUSHED
))
404 SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
405 GetClientRect( hWnd
, &rect
);
406 if (uMsg
== WM_KEYUP
|| PtInRect( &rect
, pt
))
408 state
= get_button_state( hWnd
);
411 case BS_AUTOCHECKBOX
:
412 SendMessageW( hWnd
, BM_SETCHECK
, !(state
& BST_CHECKED
), 0 );
414 case BS_AUTORADIOBUTTON
:
415 SendMessageW( hWnd
, BM_SETCHECK
, TRUE
, 0 );
418 SendMessageW( hWnd
, BM_SETCHECK
,
419 (state
& BST_INDETERMINATE
) ? 0 : ((state
& 3) + 1), 0 );
423 TellParent
= TRUE
; // <---- Fix CORE-10194, Notify parent after capture is released.
426 BUTTON_NOTIFY_PARENT(hWnd
, BN_CLICKED
);
431 if (TellParent
) BUTTON_NOTIFY_PARENT(hWnd
, BN_CLICKED
);
440 case WM_CAPTURECHANGED
:
441 TRACE("WM_CAPTURECHANGED %p\n", hWnd
);
442 if (hWnd
== (HWND
)lParam
) break;
443 state
= get_button_state( hWnd
);
444 if (state
& BUTTON_BTNPRESSED
)
446 state
&= BUTTON_NSTATES
;
447 set_button_state( hWnd
, state
);
448 if (state
& BST_PUSHED
) SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
453 if ((wParam
& MK_LBUTTON
) && GetCapture() == hWnd
)
455 GetClientRect( hWnd
, &rect
);
456 SendMessageW( hWnd
, BM_SETSTATE
, PtInRect(&rect
, pt
), 0 );
462 /* Clear an old text here as Windows does */
465 // wine Bug: http://bugs.winehq.org/show_bug.cgi?id=25790
466 // Patch: http://source.winehq.org/patches/data/70889
467 // By: Alexander LAW, Replicate Windows behavior of WM_SETTEXT handler regarding WM_CTLCOLOR*
470 if (style
& WS_VISIBLE
)
472 if (IsWindowVisible(hWnd
))
475 HDC hdc
= GetDC(hWnd
);
478 HWND parent
= GetParent(hWnd
);
479 UINT message
= (btn_type
== BS_PUSHBUTTON
||
480 btn_type
== BS_DEFPUSHBUTTON
||
481 btn_type
== BS_PUSHLIKE
||
482 btn_type
== BS_USERBUTTON
||
483 btn_type
== BS_OWNERDRAW
) ?
484 WM_CTLCOLORBTN
: WM_CTLCOLORSTATIC
;
486 if (!parent
) parent
= hWnd
;
488 hbrush
= GetControlColor(parent
, hWnd
, hdc
, message
);
490 hbrush
= (HBRUSH
)SendMessageW(parent
, message
,
491 (WPARAM
)hdc
, (LPARAM
)hWnd
);
492 if (!hbrush
) /* did the app forget to call DefWindowProc ? */
493 hbrush
= (HBRUSH
)DefWindowProcW(parent
, message
,
494 (WPARAM
)hdc
, (LPARAM
)hWnd
);
497 GetClientRect(hWnd
, &client
);
499 /* FIXME: check other BS_* handlers */
500 if (btn_type
== BS_GROUPBOX
)
501 InflateRect(&rc
, -7, 1); /* GB_Paint does this */
502 BUTTON_CalcLabelRect(hWnd
, hdc
, &rc
);
503 /* Clip by client rect bounds */
504 if (rc
.right
> client
.right
) rc
.right
= client
.right
;
505 if (rc
.bottom
> client
.bottom
) rc
.bottom
= client
.bottom
;
506 FillRect(hdc
, &rc
, hbrush
);
507 ReleaseDC(hWnd
, hdc
);
510 if (unicode
) DefWindowProcW( hWnd
, WM_SETTEXT
, wParam
, lParam
);
511 else DefWindowProcA( hWnd
, WM_SETTEXT
, wParam
, lParam
);
512 if (btn_type
== BS_GROUPBOX
) /* Yes, only for BS_GROUPBOX */
513 InvalidateRect( hWnd
, NULL
, TRUE
);
515 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
516 return 1; /* success. FIXME: check text length */
520 set_button_font( hWnd
, (HFONT
)wParam
);
521 if (lParam
) InvalidateRect(hWnd
, NULL
, TRUE
);
525 return (LRESULT
)get_button_font( hWnd
);
528 TRACE("WM_SETFOCUS %p\n",hWnd
);
529 set_button_state( hWnd
, get_button_state(hWnd
) | BST_FOCUS
);
530 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
531 if (style
& BS_NOTIFY
)
532 BUTTON_NOTIFY_PARENT(hWnd
, BN_SETFOCUS
);
536 TRACE("WM_KILLFOCUS %p\n",hWnd
);
537 state
= get_button_state( hWnd
);
538 set_button_state( hWnd
, state
& ~BST_FOCUS
);
539 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
541 if ((state
& BUTTON_BTNPRESSED
) && GetCapture() == hWnd
)
543 if (style
& BS_NOTIFY
)
544 BUTTON_NOTIFY_PARENT(hWnd
, BN_KILLFOCUS
);
546 InvalidateRect( hWnd
, NULL
, FALSE
);
549 case WM_SYSCOLORCHANGE
:
550 InvalidateRect( hWnd
, NULL
, FALSE
);
554 btn_type
= wParam
& BS_TYPEMASK
;
555 style
= (style
& ~BS_TYPEMASK
) | btn_type
;
557 NtUserAlterWindowStyle(hWnd
, GWL_STYLE
, style
);
559 WIN_SetStyle( hWnd
, style
, BS_TYPEMASK
& ~style
);
562 /* Only redraw if lParam flag is set.*/
564 InvalidateRect( hWnd
, NULL
, TRUE
);
570 state
= get_button_state(hWnd
);
571 if (state
& BUTTON_BMCLICK
)
573 set_button_state(hWnd
, state
| BUTTON_BMCLICK
); // Tracked in STATE_GWL_OFFSET.
575 SendMessageW( hWnd
, WM_LBUTTONDOWN
, 0, 0 );
576 SendMessageW( hWnd
, WM_LBUTTONUP
, 0, 0 );
578 state
= get_button_state(hWnd
);
579 if (!(state
& BUTTON_BMCLICK
)) break;
580 state
&= ~BUTTON_BMCLICK
;
581 set_button_state(hWnd
, state
);
586 /* Check that image format matches button style */
587 switch (style
& (BS_BITMAP
|BS_ICON
))
590 if (wParam
!= IMAGE_BITMAP
) return 0;
593 if (wParam
!= IMAGE_ICON
) return 0;
598 oldHbitmap
= (HBITMAP
)SetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
, lParam
);
599 InvalidateRect( hWnd
, NULL
, FALSE
);
600 return (LRESULT
)oldHbitmap
;
603 return GetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
);
606 return get_button_state( hWnd
) & 3;
609 if (wParam
> maxCheckState
[btn_type
]) wParam
= maxCheckState
[btn_type
];
610 state
= get_button_state( hWnd
);
611 if ((btn_type
== BS_RADIOBUTTON
) || (btn_type
== BS_AUTORADIOBUTTON
))
614 if (wParam
) style
|= WS_TABSTOP
;
615 else style
&= ~WS_TABSTOP
;
616 NtUserAlterWindowStyle(hWnd
, GWL_STYLE
, style
);
618 if (wParam
) WIN_SetStyle( hWnd
, WS_TABSTOP
, 0 );
619 else WIN_SetStyle( hWnd
, 0, WS_TABSTOP
);
622 if ((state
& 3) != wParam
)
624 set_button_state( hWnd
, (state
& ~3) | wParam
);
625 paint_button( hWnd
, btn_type
, ODA_SELECT
);
627 if ((btn_type
== BS_AUTORADIOBUTTON
) && (wParam
== BST_CHECKED
) && (style
& WS_CHILD
))
628 BUTTON_CheckAutoRadioButton( hWnd
);
632 return get_button_state( hWnd
);
635 state
= get_button_state( hWnd
);
637 set_button_state( hWnd
, state
| BST_PUSHED
);
639 set_button_state( hWnd
, state
& ~BST_PUSHED
);
641 paint_button( hWnd
, btn_type
, ODA_SELECT
);
645 case WM_UPDATEUISTATE
:
647 DefWindowProcW(hWnd
, uMsg
, wParam
, lParam
);
649 DefWindowProcA(hWnd
, uMsg
, wParam
, lParam
);
651 if (button_update_uistate(hWnd
, unicode
))
652 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
657 if(btn_type
== BS_GROUPBOX
) return HTTRANSPARENT
;
660 return unicode
? DefWindowProcW(hWnd
, uMsg
, wParam
, lParam
) :
661 DefWindowProcA(hWnd
, uMsg
, wParam
, lParam
);
668 /***********************************************************************
670 * The button window procedure. This is just a wrapper which locks
671 * the passed HWND and calls the real window procedure (with a WND*
672 * pointer pointing to the locked windowstructure).
674 LRESULT WINAPI
ButtonWndProcW(HWND hWnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
)
676 if (!IsWindow(hWnd
)) return 0;
677 return ButtonWndProc_common(hWnd
, uMsg
, wParam
, lParam
, TRUE
);
680 /***********************************************************************
683 LRESULT WINAPI
ButtonWndProcA(HWND hWnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
)
685 if (!IsWindow(hWnd
)) return 0;
686 return ButtonWndProc_common(hWnd
, uMsg
, wParam
, lParam
, FALSE
);
689 #endif /* __REACTOS__ */
691 /**********************************************************************
692 * Convert button styles to flags used by DrawText.
694 static UINT
BUTTON_BStoDT( DWORD style
, DWORD ex_style
)
696 UINT dtStyle
= DT_NOCLIP
; /* We use SelectClipRgn to limit output */
698 /* "Convert" pushlike buttons to pushbuttons */
699 if (style
& BS_PUSHLIKE
)
700 style
&= ~BS_TYPEMASK
;
702 if (!(style
& BS_MULTILINE
))
703 dtStyle
|= DT_SINGLELINE
;
705 dtStyle
|= DT_WORDBREAK
;
707 switch (style
& BS_CENTER
)
709 case BS_LEFT
: /* DT_LEFT is 0 */ break;
710 case BS_RIGHT
: dtStyle
|= DT_RIGHT
; break;
711 case BS_CENTER
: dtStyle
|= DT_CENTER
; break;
713 /* Pushbutton's text is centered by default */
714 if (get_button_type(style
) <= BS_DEFPUSHBUTTON
) dtStyle
|= DT_CENTER
;
715 /* all other flavours have left aligned text */
718 if (ex_style
& WS_EX_RIGHT
) dtStyle
= DT_RIGHT
| (dtStyle
& ~(DT_LEFT
| DT_CENTER
));
720 /* DrawText ignores vertical alignment for multiline text,
721 * but we use these flags to align label manually.
723 if (get_button_type(style
) != BS_GROUPBOX
)
725 switch (style
& BS_VCENTER
)
727 case BS_TOP
: /* DT_TOP is 0 */ break;
728 case BS_BOTTOM
: dtStyle
|= DT_BOTTOM
; break;
729 case BS_VCENTER
: /* fall through */
730 default: dtStyle
|= DT_VCENTER
; break;
734 /* GroupBox's text is always single line and is top aligned. */
735 dtStyle
|= DT_SINGLELINE
;
740 /**********************************************************************
741 * BUTTON_CalcLabelRect
743 * Calculates label's rectangle depending on button style.
745 * Returns flags to be passed to DrawText.
746 * Calculated rectangle doesn't take into account button state
747 * (pushed, etc.). If there is nothing to draw (no text/image) output
748 * rectangle is empty, and return value is (UINT)-1.
750 static UINT
BUTTON_CalcLabelRect(HWND hwnd
, HDC hdc
, RECT
*rc
)
752 LONG style
= GetWindowLongPtrW( hwnd
, GWL_STYLE
);
753 LONG ex_style
= GetWindowLongPtrW( hwnd
, GWL_EXSTYLE
);
757 UINT dtStyle
= BUTTON_BStoDT( style
, ex_style
);
761 /* Calculate label rectangle according to label type */
762 switch (style
& (BS_ICON
|BS_BITMAP
))
766 HFONT hFont
, hPrevFont
= 0;
768 if (!(text
= get_button_text( hwnd
))) goto empty_rect
;
771 HeapFree( GetProcessHeap(), 0, text
);
775 if ((hFont
= get_button_font( hwnd
))) hPrevFont
= SelectObject( hdc
, hFont
);
776 DrawTextW(hdc
, text
, -1, &r
, dtStyle
| DT_CALCRECT
);
777 if (hPrevFont
) SelectObject( hdc
, hPrevFont
);
778 HeapFree( GetProcessHeap(), 0, text
);
780 if (get_ui_state(hwnd
) & UISF_HIDEACCEL
)
781 dtStyle
|= DT_HIDEPREFIX
;
787 if (!GetIconInfo((HICON
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), &iconInfo
))
790 GetObjectW (iconInfo
.hbmColor
, sizeof(BITMAP
), &bm
);
792 r
.right
= r
.left
+ bm
.bmWidth
;
793 r
.bottom
= r
.top
+ bm
.bmHeight
;
795 DeleteObject(iconInfo
.hbmColor
);
796 DeleteObject(iconInfo
.hbmMask
);
800 if (!GetObjectW( (HANDLE
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), sizeof(BITMAP
), &bm
))
803 r
.right
= r
.left
+ bm
.bmWidth
;
804 r
.bottom
= r
.top
+ bm
.bmHeight
;
814 /* Position label inside bounding rectangle according to
815 * alignment flags. (calculated rect is always left-top aligned).
816 * If label is aligned to any side - shift label in opposite
817 * direction to leave extra space for focus rectangle.
819 switch (dtStyle
& (DT_CENTER
|DT_RIGHT
))
821 case DT_LEFT
: r
.left
++; r
.right
++; break;
822 case DT_CENTER
: n
= r
.right
- r
.left
;
823 r
.left
= rc
->left
+ ((rc
->right
- rc
->left
) - n
) / 2;
824 r
.right
= r
.left
+ n
; break;
825 case DT_RIGHT
: n
= r
.right
- r
.left
;
826 r
.right
= rc
->right
- 1;
827 r
.left
= r
.right
- n
;
831 switch (dtStyle
& (DT_VCENTER
|DT_BOTTOM
))
833 case DT_TOP
: r
.top
++; r
.bottom
++; break;
834 case DT_VCENTER
: n
= r
.bottom
- r
.top
;
835 r
.top
= rc
->top
+ ((rc
->bottom
- rc
->top
) - n
) / 2;
836 r
.bottom
= r
.top
+ n
; break;
837 case DT_BOTTOM
: n
= r
.bottom
- r
.top
;
838 r
.bottom
= rc
->bottom
- 1;
839 r
.top
= r
.bottom
- n
;
848 /**********************************************************************
849 * BUTTON_DrawTextCallback
851 * Callback function used by DrawStateW function.
853 static BOOL CALLBACK
BUTTON_DrawTextCallback(HDC hdc
, LPARAM lp
, WPARAM wp
, int cx
, int cy
)
857 SetRect(&rc
, 0, 0, cx
, cy
);
858 DrawTextW(hdc
, (LPCWSTR
)lp
, -1, &rc
, (UINT
)wp
);
863 /**********************************************************************
866 * Common function for drawing button label.
868 static void BUTTON_DrawLabel(HWND hwnd
, HDC hdc
, UINT dtFlags
, const RECT
*rc
)
870 DRAWSTATEPROC lpOutputProc
= NULL
;
874 UINT flags
= IsWindowEnabled(hwnd
) ? DSS_NORMAL
: DSS_DISABLED
;
875 LONG state
= get_button_state( hwnd
);
876 LONG style
= GetWindowLongPtrW( hwnd
, GWL_STYLE
);
879 /* FIXME: To draw disabled label in Win31 look-and-feel, we probably
880 * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION).
881 * I don't have Win31 on hand to verify that, so I leave it as is.
884 if ((style
& BS_PUSHLIKE
) && (state
& BST_INDETERMINATE
))
886 hbr
= GetSysColorBrush(COLOR_GRAYTEXT
);
890 switch (style
& (BS_ICON
|BS_BITMAP
))
893 /* DST_COMPLEX -- is 0 */
894 lpOutputProc
= BUTTON_DrawTextCallback
;
895 if (!(text
= get_button_text( hwnd
))) return;
897 wp
= (WPARAM
)dtFlags
;
900 if (dtFlags
& DT_HIDEPREFIX
)
901 flags
|= DSS_HIDEPREFIX
;
907 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
912 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
919 DrawStateW(hdc
, hbr
, lpOutputProc
, lp
, wp
, rc
->left
, rc
->top
,
920 rc
->right
- rc
->left
, rc
->bottom
- rc
->top
, flags
);
921 HeapFree( GetProcessHeap(), 0, text
);
924 /**********************************************************************
925 * Push Button Functions
927 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
930 UINT dtFlags
, uState
;
934 COLORREF oldTxtColor
;
936 LONG state
= get_button_state( hwnd
);
937 LONG style
= GetWindowLongPtrW( hwnd
, GWL_STYLE
);
938 BOOL pushedState
= (state
& BST_PUSHED
);
942 GetClientRect( hwnd
, &rc
);
944 /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
945 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
946 parent
= GetParent(hwnd
);
947 if (!parent
) parent
= hwnd
;
949 GetControlColor( parent
, hwnd
, hDC
, WM_CTLCOLORBTN
);
951 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
954 hrgn
= set_control_clipping( hDC
, &rc
);
956 hOldPen
= SelectObject(hDC
, GetStockObject(DC_PEN
));
957 SetDCPenColor(hDC
, GetSysColor(COLOR_WINDOWFRAME
));
959 hOldPen
= SelectObject(hDC
, SYSCOLOR_GetPen(COLOR_WINDOWFRAME
));
961 hOldBrush
= SelectObject(hDC
,GetSysColorBrush(COLOR_BTNFACE
));
962 oldBkMode
= SetBkMode(hDC
, TRANSPARENT
);
964 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
966 if (action
!= ODA_FOCUS
)
967 Rectangle(hDC
, rc
.left
, rc
.top
, rc
.right
, rc
.bottom
);
968 InflateRect( &rc
, -1, -1 );
971 /* completely skip the drawing if only focus has changed */
972 if (action
== ODA_FOCUS
) goto draw_focus
;
974 uState
= DFCS_BUTTONPUSH
;
978 else if (pushedState
)
980 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
983 uState
|= DFCS_PUSHED
;
986 if (state
& (BST_CHECKED
| BST_INDETERMINATE
))
987 uState
|= DFCS_CHECKED
;
989 DrawFrameControl( hDC
, &rc
, DFC_BUTTON
, uState
);
991 /* draw button label */
993 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &r
);
995 if (dtFlags
== (UINT
)-1L)
999 OffsetRect(&r
, 1, 1);
1001 oldTxtColor
= SetTextColor( hDC
, GetSysColor(COLOR_BTNTEXT
) );
1003 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &r
);
1005 SetTextColor( hDC
, oldTxtColor
);
1008 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
1011 if (!(get_ui_state(hwnd
) & UISF_HIDEFOCUS
))
1014 InflateRect( &rc
, -2, -2 );
1015 DrawFocusRect( hDC
, &rc
);
1022 SelectObject( hDC
, hOldPen
);
1023 SelectObject( hDC
, hOldBrush
);
1024 SetBkMode(hDC
, oldBkMode
);
1025 SelectClipRgn( hDC
, hrgn
);
1026 if (hrgn
) DeleteObject( hrgn
);
1029 /**********************************************************************
1030 * Check Box & Radio Button Functions
1033 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1035 RECT rbox
, rtext
, client
;
1037 int delta
, text_offset
, checkBoxWidth
, checkBoxHeight
;
1040 LONG state
= get_button_state( hwnd
);
1041 LONG style
= GetWindowLongPtrW( hwnd
, GWL_STYLE
);
1042 LONG ex_style
= GetWindowLongW( hwnd
, GWL_EXSTYLE
);
1046 if (style
& BS_PUSHLIKE
)
1048 PB_Paint( hwnd
, hDC
, action
);
1052 GetClientRect(hwnd
, &client
);
1053 rbox
= rtext
= client
;
1055 checkBoxWidth
= 12 * GetDeviceCaps( hDC
, LOGPIXELSX
) / 96 + 1;
1056 checkBoxHeight
= 12 * GetDeviceCaps( hDC
, LOGPIXELSY
) / 96 + 1;
1058 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1059 GetCharWidthW( hDC
, '0', '0', &text_offset
);
1062 parent
= GetParent(hwnd
);
1063 if (!parent
) parent
= hwnd
;
1065 hBrush
= GetControlColor(parent
, hwnd
, hDC
, WM_CTLCOLORSTATIC
);
1067 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
,
1068 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1069 if (!hBrush
) /* did the app forget to call defwindowproc ? */
1070 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
1071 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1073 hrgn
= set_control_clipping( hDC
, &client
);
1075 if (style
& BS_LEFTTEXT
|| ex_style
& WS_EX_RIGHT
)
1077 /* magic +4 is what CTL3D expects */
1079 rtext
.right
-= checkBoxWidth
+ text_offset
;;
1080 rbox
.left
= rbox
.right
- checkBoxWidth
;
1084 rtext
.left
+= checkBoxWidth
+ text_offset
;;
1085 rbox
.right
= checkBoxWidth
;
1088 /* Since WM_ERASEBKGND does nothing, first prepare background */
1089 if (action
== ODA_SELECT
) FillRect( hDC
, &rbox
, hBrush
);
1090 if (action
== ODA_DRAWENTIRE
) FillRect( hDC
, &client
, hBrush
);
1094 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rtext
);
1096 /* Only adjust rbox when rtext is valid */
1097 if (dtFlags
!= (UINT
)-1L)
1099 rbox
.top
= rtext
.top
;
1100 rbox
.bottom
= rtext
.bottom
;
1103 /* Draw the check-box bitmap */
1104 if (action
== ODA_DRAWENTIRE
|| action
== ODA_SELECT
)
1108 if ((get_button_type(style
) == BS_RADIOBUTTON
) ||
1109 (get_button_type(style
) == BS_AUTORADIOBUTTON
)) flags
= DFCS_BUTTONRADIO
;
1110 else if (state
& BST_INDETERMINATE
) flags
= DFCS_BUTTON3STATE
;
1111 else flags
= DFCS_BUTTONCHECK
;
1113 if (state
& (BST_CHECKED
| BST_INDETERMINATE
)) flags
|= DFCS_CHECKED
;
1114 if (state
& BST_PUSHED
) flags
|= DFCS_PUSHED
;
1116 if (style
& WS_DISABLED
) flags
|= DFCS_INACTIVE
;
1118 /* rbox must have the correct height */
1119 delta
= rbox
.bottom
- rbox
.top
- checkBoxHeight
;
1121 if (style
& BS_TOP
) {
1123 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
1125 rbox
.top
-= -delta
/2 + 1;
1126 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
1128 } else if (style
& BS_BOTTOM
) {
1130 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
1132 rbox
.bottom
+= -delta
/2 + 1;
1133 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
1135 } else { /* Default */
1137 int ofs
= (delta
/ 2);
1138 rbox
.bottom
-= ofs
+ 1;
1139 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
1140 } else if (delta
< 0) {
1141 int ofs
= (-delta
/ 2);
1142 rbox
.top
-= ofs
+ 1;
1143 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
1147 DrawFrameControl( hDC
, &rbox
, DFC_BUTTON
, flags
);
1150 if (dtFlags
== (UINT
)-1L) /* Noting to draw */
1153 if (action
== ODA_DRAWENTIRE
)
1154 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rtext
);
1157 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
1160 if (!(get_ui_state(hwnd
) & UISF_HIDEFOCUS
))
1165 IntersectRect(&rtext
, &rtext
, &client
);
1166 DrawFocusRect( hDC
, &rtext
);
1171 SelectClipRgn( hDC
, hrgn
);
1172 if (hrgn
) DeleteObject( hrgn
);
1176 /**********************************************************************
1177 * BUTTON_CheckAutoRadioButton
1179 * hwnd is checked, uncheck every other auto radio button in group
1181 static void BUTTON_CheckAutoRadioButton( HWND hwnd
)
1183 HWND parent
, sibling
, start
;
1185 parent
= GetParent(hwnd
);
1186 /* make sure that starting control is not disabled or invisible */
1187 start
= sibling
= GetNextDlgGroupItem( parent
, hwnd
, TRUE
);
1190 if (!sibling
) break;
1191 if ((hwnd
!= sibling
) &&
1192 ((GetWindowLongPtrW( sibling
, GWL_STYLE
) & BS_TYPEMASK
) == BS_AUTORADIOBUTTON
))
1193 SendMessageW( sibling
, BM_SETCHECK
, BST_UNCHECKED
, 0 );
1194 sibling
= GetNextDlgGroupItem( parent
, sibling
, FALSE
);
1195 } while (sibling
!= start
);
1199 /**********************************************************************
1200 * Group Box Functions
1203 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1210 LONG style
= GetWindowLongPtrW( hwnd
, GWL_STYLE
);
1214 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1215 /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
1216 parent
= GetParent(hwnd
);
1217 if (!parent
) parent
= hwnd
;
1219 hbr
= GetControlColor(parent
, hwnd
, hDC
, WM_CTLCOLORSTATIC
);
1221 hbr
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1222 if (!hbr
) /* did the app forget to call defwindowproc ? */
1223 hbr
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
1224 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1226 GetClientRect( hwnd
, &rc
);
1228 hrgn
= set_control_clipping( hDC
, &rc
);
1230 GetTextMetricsW (hDC
, &tm
);
1231 rcFrame
.top
+= (tm
.tmHeight
/ 2) - 1;
1232 DrawEdge (hDC
, &rcFrame
, EDGE_ETCHED
, BF_RECT
| ((style
& BS_FLAT
) ? BF_FLAT
: 0));
1234 InflateRect(&rc
, -7, 1);
1235 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rc
);
1237 if (dtFlags
!= (UINT
)-1L)
1239 /* Because buttons have CS_PARENTDC class style, there is a chance
1240 * that label will be drawn out of client rect.
1241 * But Windows doesn't clip label's rect, so do I.
1244 /* There is 1-pixel margin at the left, right, and bottom */
1245 rc
.left
--; rc
.right
++; rc
.bottom
++;
1246 FillRect(hDC
, &rc
, hbr
);
1247 rc
.left
++; rc
.right
--; rc
.bottom
--;
1249 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rc
);
1251 SelectClipRgn( hDC
, hrgn
);
1252 if (hrgn
) DeleteObject( hrgn
);
1256 /**********************************************************************
1257 * User Button Functions
1260 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1265 LONG state
= get_button_state( hwnd
);
1268 GetClientRect( hwnd
, &rc
);
1270 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1272 parent
= GetParent(hwnd
);
1273 if (!parent
) parent
= hwnd
;
1275 hBrush
= GetControlColor( parent
, hwnd
, hDC
, WM_CTLCOLORBTN
);
1277 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1278 if (!hBrush
) /* did the app forget to call defwindowproc ? */
1279 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
1280 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1283 FillRect( hDC
, &rc
, hBrush
);
1284 if (action
== ODA_FOCUS
|| (state
& BST_FOCUS
))
1287 if (!(get_ui_state(hwnd
) & UISF_HIDEFOCUS
))
1289 DrawFocusRect( hDC
, &rc
);
1297 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BST_FOCUS
) ? BN_SETFOCUS
: BN_KILLFOCUS
);
1301 BUTTON_NOTIFY_PARENT( hwnd
, (state
& BST_PUSHED
) ? BN_HILITE
: BN_UNHILITE
);
1305 BUTTON_NOTIFY_PARENT( hwnd
, BN_PAINT
);
1311 /**********************************************************************
1312 * Ownerdrawn Button Functions
1315 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1317 LONG state
= get_button_state( hwnd
);
1319 LONG_PTR id
= GetWindowLongPtrW( hwnd
, GWLP_ID
);
1321 HFONT hFont
, hPrevFont
= 0;
1324 dis
.CtlType
= ODT_BUTTON
;
1327 dis
.itemAction
= action
;
1328 dis
.itemState
= ((state
& BST_FOCUS
) ? ODS_FOCUS
: 0) |
1329 ((state
& BST_PUSHED
) ? ODS_SELECTED
: 0) |
1330 (IsWindowEnabled(hwnd
) ? 0: ODS_DISABLED
);
1331 dis
.hwndItem
= hwnd
;
1334 GetClientRect( hwnd
, &dis
.rcItem
);
1336 if ((hFont
= get_button_font( hwnd
))) hPrevFont
= SelectObject( hDC
, hFont
);
1337 parent
= GetParent(hwnd
);
1338 if (!parent
) parent
= hwnd
;
1340 GetControlColor( parent
, hwnd
, hDC
, WM_CTLCOLORBTN
);
1342 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1345 hrgn
= set_control_clipping( hDC
, &dis
.rcItem
);
1347 SendMessageW( GetParent(hwnd
), WM_DRAWITEM
, id
, (LPARAM
)&dis
);
1348 if (hPrevFont
) SelectObject(hDC
, hPrevFont
);
1349 SelectClipRgn( hDC
, hrgn
);
1350 if (hrgn
) DeleteObject( hrgn
);