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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
37 * - WM_CHAR: Checks a (manual or automatic) check box on '+' or '=', clears it on '-' key.
38 * - WM_SETFOCUS: For (manual or automatic) radio buttons, send the parent window BN_CLICKED
39 * - WM_NCCREATE: Turns any BS_OWNERDRAW button into a BS_PUSHBUTTON button.
50 * - BN_PUSHED/BN_HILITE
54 * - BN_UNPUSHED/BN_UNHILITE
57 * Structures/Macros/Definitions
60 * - Button_GetIdealSize
61 * - Button_GetImageList
62 * - Button_GetTextMargin
63 * - Button_SetImageList
64 * - Button_SetTextMargin
74 #include "wine/winuser16.h"
76 #include "user_private.h"
78 /* GetWindowLong offsets for window extra information */
79 #define STATE_GWL_OFFSET 0
80 #define HFONT_GWL_OFFSET (sizeof(LONG))
81 #define HIMAGE_GWL_OFFSET (HFONT_GWL_OFFSET+sizeof(HFONT))
82 #define NB_EXTRA_BYTES (HIMAGE_GWL_OFFSET+sizeof(HANDLE))
84 /* Button state values */
85 #define BUTTON_UNCHECKED 0x00
86 #define BUTTON_CHECKED 0x01
87 #define BUTTON_3STATE 0x02
88 #define BUTTON_HIGHLIGHTED 0x04
89 #define BUTTON_HASFOCUS 0x08
90 #define BUTTON_NSTATES 0x0F
91 /* undocumented flags */
92 #define BUTTON_BTNPRESSED 0x40
93 #define BUTTON_UNKNOWN2 0x20
94 #define BUTTON_UNKNOWN3 0x10
96 static UINT
BUTTON_CalcLabelRect( HWND hwnd
, HDC hdc
, RECT
*rc
);
97 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
98 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
99 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
100 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
101 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
);
102 static void BUTTON_CheckAutoRadioButton( HWND hwnd
);
103 static LRESULT WINAPI
ButtonWndProcA( HWND hWnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
);
104 static LRESULT WINAPI
ButtonWndProcW( HWND hWnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
);
106 #define MAX_BTN_TYPE 12
108 static const WORD maxCheckState
[MAX_BTN_TYPE
] =
110 BUTTON_UNCHECKED
, /* BS_PUSHBUTTON */
111 BUTTON_UNCHECKED
, /* BS_DEFPUSHBUTTON */
112 BUTTON_CHECKED
, /* BS_CHECKBOX */
113 BUTTON_CHECKED
, /* BS_AUTOCHECKBOX */
114 BUTTON_CHECKED
, /* BS_RADIOBUTTON */
115 BUTTON_3STATE
, /* BS_3STATE */
116 BUTTON_3STATE
, /* BS_AUTO3STATE */
117 BUTTON_UNCHECKED
, /* BS_GROUPBOX */
118 BUTTON_UNCHECKED
, /* BS_USERBUTTON */
119 BUTTON_CHECKED
, /* BS_AUTORADIOBUTTON */
120 BUTTON_UNCHECKED
, /* Not defined */
121 BUTTON_UNCHECKED
/* BS_OWNERDRAW */
124 typedef void (*pfPaint
)( HWND hwnd
, HDC hdc
, UINT action
);
126 static const pfPaint btnPaintFunc
[MAX_BTN_TYPE
] =
128 PB_Paint
, /* BS_PUSHBUTTON */
129 PB_Paint
, /* BS_DEFPUSHBUTTON */
130 CB_Paint
, /* BS_CHECKBOX */
131 CB_Paint
, /* BS_AUTOCHECKBOX */
132 CB_Paint
, /* BS_RADIOBUTTON */
133 CB_Paint
, /* BS_3STATE */
134 CB_Paint
, /* BS_AUTO3STATE */
135 GB_Paint
, /* BS_GROUPBOX */
136 UB_Paint
, /* BS_USERBUTTON */
137 CB_Paint
, /* BS_AUTORADIOBUTTON */
138 NULL
, /* Not defined */
139 OB_Paint
/* BS_OWNERDRAW */
142 static HBITMAP hbitmapCheckBoxes
= 0;
143 static WORD checkBoxWidth
= 0, checkBoxHeight
= 0;
146 /*********************************************************************
147 * button class descriptor
149 const struct builtin_class_descr BUTTON_builtin_class
=
152 CS_DBLCLKS
| CS_VREDRAW
| CS_HREDRAW
| CS_PARENTDC
, /* style */
153 ButtonWndProcA
, /* procA */
154 ButtonWndProcW
, /* procW */
155 NB_EXTRA_BYTES
, /* extra */
156 IDC_ARROW
, /* cursor */
161 inline static LONG
get_button_state( HWND hwnd
)
163 return GetWindowLongW( hwnd
, STATE_GWL_OFFSET
);
166 inline static void set_button_state( HWND hwnd
, LONG state
)
168 SetWindowLongW( hwnd
, STATE_GWL_OFFSET
, state
);
171 inline static HFONT
get_button_font( HWND hwnd
)
173 return (HFONT
)GetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
);
176 inline static void set_button_font( HWND hwnd
, HFONT font
)
178 SetWindowLongPtrW( hwnd
, HFONT_GWL_OFFSET
, (LONG_PTR
)font
);
181 inline static UINT
get_button_type( LONG window_style
)
183 return (window_style
& 0x0f);
186 /* paint a button of any type */
187 inline static void paint_button( HWND hwnd
, LONG style
, UINT action
)
189 if (btnPaintFunc
[style
] && IsWindowVisible(hwnd
))
191 HDC hdc
= GetDC( hwnd
);
192 btnPaintFunc
[style
]( hwnd
, hdc
, action
);
193 ReleaseDC( hwnd
, hdc
);
197 /* retrieve the button text; returned buffer must be freed by caller */
198 inline static WCHAR
*get_button_text( HWND hwnd
)
201 WCHAR
*buffer
= HeapAlloc( GetProcessHeap(), 0, (len
+ 1) * sizeof(WCHAR
) );
202 if (buffer
) InternalGetWindowText( hwnd
, buffer
, len
+ 1 );
206 /***********************************************************************
207 * ButtonWndProc_common
209 static LRESULT WINAPI
ButtonWndProc_common(HWND hWnd
, UINT uMsg
,
210 WPARAM wParam
, LPARAM lParam
, BOOL unicode
)
214 LONG style
= GetWindowLongW( hWnd
, GWL_STYLE
);
215 UINT btn_type
= get_button_type( style
);
219 pt
.x
= LOWORD(lParam
);
220 pt
.y
= HIWORD(lParam
);
228 case BS_PUSHBUTTON
: return DLGC_BUTTON
| DLGC_UNDEFPUSHBUTTON
;
229 case BS_DEFPUSHBUTTON
: return DLGC_BUTTON
| DLGC_DEFPUSHBUTTON
;
231 case BS_AUTORADIOBUTTON
: return DLGC_BUTTON
| DLGC_RADIOBUTTON
;
232 case BS_GROUPBOX
: return DLGC_STATIC
;
233 default: return DLGC_BUTTON
;
237 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
241 if (!hbitmapCheckBoxes
)
244 hbitmapCheckBoxes
= LoadBitmapW(0, MAKEINTRESOURCEW(OBM_CHECKBOXES
));
245 GetObjectW( hbitmapCheckBoxes
, sizeof(bmp
), &bmp
);
246 checkBoxWidth
= bmp
.bmWidth
/ 4;
247 checkBoxHeight
= bmp
.bmHeight
/ 3;
249 if (btn_type
>= MAX_BTN_TYPE
)
250 return -1; /* abort */
251 set_button_state( hWnd
, BUTTON_UNCHECKED
);
255 if (btn_type
== BS_OWNERDRAW
)
257 HDC hdc
= (HDC
)wParam
;
260 HWND parent
= GetParent(hWnd
);
261 if (!parent
) parent
= hWnd
;
262 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hdc
, (LPARAM
)hWnd
);
263 if (!hBrush
) /* did the app forget to call defwindowproc ? */
264 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
265 (WPARAM
)hdc
, (LPARAM
)hWnd
);
266 GetClientRect(hWnd
, &rc
);
267 FillRect(hdc
, &rc
, hBrush
);
272 if (btnPaintFunc
[btn_type
])
275 HDC hdc
= wParam
? (HDC
)wParam
: BeginPaint( hWnd
, &ps
);
276 int nOldMode
= SetBkMode( hdc
, OPAQUE
);
277 (btnPaintFunc
[btn_type
])( hWnd
, hdc
, ODA_DRAWENTIRE
);
278 SetBkMode(hdc
, nOldMode
); /* reset painting mode */
279 if( !wParam
) EndPaint( hWnd
, &ps
);
284 if (wParam
== VK_SPACE
)
286 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
287 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
291 case WM_LBUTTONDBLCLK
:
292 if(style
& BS_NOTIFY
||
293 btn_type
== BS_RADIOBUTTON
||
294 btn_type
== BS_USERBUTTON
||
295 btn_type
== BS_OWNERDRAW
)
297 SendMessageW( GetParent(hWnd
), WM_COMMAND
,
298 MAKEWPARAM( GetWindowLongPtrW(hWnd
,GWLP_ID
), BN_DOUBLECLICKED
),
306 set_button_state( hWnd
, get_button_state( hWnd
) | BUTTON_BTNPRESSED
);
307 SendMessageW( hWnd
, BM_SETSTATE
, TRUE
, 0 );
311 if (wParam
!= VK_SPACE
)
315 state
= get_button_state( hWnd
);
316 if (!(state
& BUTTON_BTNPRESSED
)) break;
317 state
&= BUTTON_NSTATES
;
318 set_button_state( hWnd
, state
);
319 if (!(state
& BUTTON_HIGHLIGHTED
))
324 SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
326 GetClientRect( hWnd
, &rect
);
327 if (uMsg
== WM_KEYUP
|| PtInRect( &rect
, pt
))
329 state
= get_button_state( hWnd
);
332 case BS_AUTOCHECKBOX
:
333 SendMessageW( hWnd
, BM_SETCHECK
, !(state
& BUTTON_CHECKED
), 0 );
335 case BS_AUTORADIOBUTTON
:
336 SendMessageW( hWnd
, BM_SETCHECK
, TRUE
, 0 );
339 SendMessageW( hWnd
, BM_SETCHECK
,
340 (state
& BUTTON_3STATE
) ? 0 : ((state
& 3) + 1), 0 );
343 SendMessageW( GetParent(hWnd
), WM_COMMAND
,
344 MAKEWPARAM( GetWindowLongPtrW(hWnd
,GWLP_ID
), BN_CLICKED
), (LPARAM
)hWnd
);
348 case WM_CAPTURECHANGED
:
349 state
= get_button_state( hWnd
);
350 if (state
& BUTTON_BTNPRESSED
)
352 state
&= BUTTON_NSTATES
;
353 set_button_state( hWnd
, state
);
354 if (state
& BUTTON_HIGHLIGHTED
) SendMessageW( hWnd
, BM_SETSTATE
, FALSE
, 0 );
359 if ((wParam
& MK_LBUTTON
) && GetCapture() == hWnd
)
361 GetClientRect( hWnd
, &rect
);
362 SendMessageW( hWnd
, BM_SETSTATE
, PtInRect(&rect
, pt
), 0 );
368 /* Clear an old text here as Windows does */
369 HDC hdc
= GetDC(hWnd
);
372 HWND parent
= GetParent(hWnd
);
374 if (!parent
) parent
= hWnd
;
375 hbrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
,
376 (WPARAM
)hdc
, (LPARAM
)hWnd
);
377 if (!hbrush
) /* did the app forget to call DefWindowProc ? */
378 hbrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
379 (WPARAM
)hdc
, (LPARAM
)hWnd
);
381 GetClientRect(hWnd
, &client
);
383 BUTTON_CalcLabelRect(hWnd
, hdc
, &rc
);
384 /* Clip by client rect bounds */
385 if (rc
.right
> client
.right
) rc
.right
= client
.right
;
386 if (rc
.bottom
> client
.bottom
) rc
.bottom
= client
.bottom
;
387 FillRect(hdc
, &rc
, hbrush
);
388 ReleaseDC(hWnd
, hdc
);
390 if (unicode
) DefWindowProcW( hWnd
, WM_SETTEXT
, wParam
, lParam
);
391 else DefWindowProcA( hWnd
, WM_SETTEXT
, wParam
, lParam
);
392 if (btn_type
== BS_GROUPBOX
) /* Yes, only for BS_GROUPBOX */
393 InvalidateRect( hWnd
, NULL
, TRUE
);
395 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
396 return 1; /* success. FIXME: check text length */
400 set_button_font( hWnd
, (HFONT
)wParam
);
401 if (lParam
) paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
405 return (LRESULT
)get_button_font( hWnd
);
408 set_button_state( hWnd
, get_button_state(hWnd
) | BUTTON_HASFOCUS
);
409 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
413 state
= get_button_state( hWnd
);
414 set_button_state( hWnd
, state
& ~BUTTON_HASFOCUS
);
415 paint_button( hWnd
, btn_type
, ODA_FOCUS
);
417 if ((state
& BUTTON_BTNPRESSED
) && GetCapture() == hWnd
)
421 case WM_SYSCOLORCHANGE
:
422 InvalidateRect( hWnd
, NULL
, FALSE
);
427 if ((wParam
& 0x0f) >= MAX_BTN_TYPE
) break;
428 btn_type
= wParam
& 0x0f;
429 style
= (style
& ~0x0f) | btn_type
;
430 SetWindowLongW( hWnd
, GWL_STYLE
, style
);
432 /* Only redraw if lParam flag is set.*/
434 paint_button( hWnd
, btn_type
, ODA_DRAWENTIRE
);
439 SendMessageW( hWnd
, WM_LBUTTONDOWN
, 0, 0 );
440 SendMessageW( hWnd
, WM_LBUTTONUP
, 0, 0 );
444 /* Check that image format matches button style */
445 switch (style
& (BS_BITMAP
|BS_ICON
))
448 if (wParam
!= IMAGE_BITMAP
) return 0;
451 if (wParam
!= IMAGE_ICON
) return 0;
456 oldHbitmap
= (HBITMAP
)SetWindowLongW( hWnd
, HIMAGE_GWL_OFFSET
, lParam
);
457 InvalidateRect( hWnd
, NULL
, FALSE
);
458 return (LRESULT
)oldHbitmap
;
461 return GetWindowLongPtrW( hWnd
, HIMAGE_GWL_OFFSET
);
465 return get_button_state( hWnd
) & 3;
469 if (wParam
> maxCheckState
[btn_type
]) wParam
= maxCheckState
[btn_type
];
470 state
= get_button_state( hWnd
);
471 if ((btn_type
== BS_RADIOBUTTON
) || (btn_type
== BS_AUTORADIOBUTTON
))
473 if (wParam
) style
|= WS_TABSTOP
;
474 else style
&= ~WS_TABSTOP
;
475 SetWindowLongW( hWnd
, GWL_STYLE
, style
);
477 if ((state
& 3) != wParam
)
479 set_button_state( hWnd
, (state
& ~3) | wParam
);
480 paint_button( hWnd
, btn_type
, ODA_SELECT
);
482 if ((btn_type
== BS_AUTORADIOBUTTON
) && (wParam
== BUTTON_CHECKED
) && (style
& WS_CHILD
))
483 BUTTON_CheckAutoRadioButton( hWnd
);
488 return get_button_state( hWnd
);
492 state
= get_button_state( hWnd
);
495 if (state
& BUTTON_HIGHLIGHTED
) break;
496 set_button_state( hWnd
, state
| BUTTON_HIGHLIGHTED
);
500 if (!(state
& BUTTON_HIGHLIGHTED
)) break;
501 set_button_state( hWnd
, state
& ~BUTTON_HIGHLIGHTED
);
503 paint_button( hWnd
, btn_type
, ODA_SELECT
);
507 if(btn_type
== BS_GROUPBOX
) return HTTRANSPARENT
;
510 return unicode
? DefWindowProcW(hWnd
, uMsg
, wParam
, lParam
) :
511 DefWindowProcA(hWnd
, uMsg
, wParam
, lParam
);
516 /***********************************************************************
518 * The button window procedure. This is just a wrapper which locks
519 * the passed HWND and calls the real window procedure (with a WND*
520 * pointer pointing to the locked windowstructure).
522 static LRESULT WINAPI
ButtonWndProcW( HWND hWnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
)
524 if (!IsWindow( hWnd
)) return 0;
525 return ButtonWndProc_common( hWnd
, uMsg
, wParam
, lParam
, TRUE
);
529 /***********************************************************************
532 static LRESULT WINAPI
ButtonWndProcA( HWND hWnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
)
534 if (!IsWindow( hWnd
)) return 0;
535 return ButtonWndProc_common( hWnd
, uMsg
, wParam
, lParam
, FALSE
);
539 /**********************************************************************
540 * Convert button styles to flags used by DrawText.
541 * TODO: handle WS_EX_RIGHT extended style.
543 static UINT
BUTTON_BStoDT(DWORD style
)
545 UINT dtStyle
= DT_NOCLIP
; /* We use SelectClipRgn to limit output */
547 /* "Convert" pushlike buttons to pushbuttons */
548 if (style
& BS_PUSHLIKE
)
551 if (!(style
& BS_MULTILINE
))
552 dtStyle
|= DT_SINGLELINE
;
554 dtStyle
|= DT_WORDBREAK
;
556 switch (style
& BS_CENTER
)
558 case BS_LEFT
: /* DT_LEFT is 0 */ break;
559 case BS_RIGHT
: dtStyle
|= DT_RIGHT
; break;
560 case BS_CENTER
: dtStyle
|= DT_CENTER
; break;
562 /* Pushbutton's text is centered by default */
563 if (get_button_type(style
) <= BS_DEFPUSHBUTTON
) dtStyle
|= DT_CENTER
;
564 /* all other flavours have left aligned text */
567 /* DrawText ignores vertical alignment for multiline text,
568 * but we use these flags to align label manualy.
570 if (get_button_type(style
) != BS_GROUPBOX
)
572 switch (style
& BS_VCENTER
)
574 case BS_TOP
: /* DT_TOP is 0 */ break;
575 case BS_BOTTOM
: dtStyle
|= DT_BOTTOM
; break;
576 case BS_VCENTER
: /* fall through */
577 default: dtStyle
|= DT_VCENTER
; break;
581 /* GroupBox's text is always single line and is top aligned. */
582 dtStyle
|= DT_SINGLELINE
;
587 /**********************************************************************
588 * BUTTON_CalcLabelRect
590 * Calculates label's rectangle depending on button style.
592 * Returns flags to be passed to DrawText.
593 * Calculated rectangle doesn't take into account button state
594 * (pushed, etc.). If there is nothing to draw (no text/image) output
595 * rectangle is empty, and return value is (UINT)-1.
597 static UINT
BUTTON_CalcLabelRect(HWND hwnd
, HDC hdc
, RECT
*rc
)
599 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
603 UINT dtStyle
= BUTTON_BStoDT(style
);
607 /* Calculate label rectangle according to label type */
608 switch (style
& (BS_ICON
|BS_BITMAP
))
611 if (!(text
= get_button_text( hwnd
))) goto empty_rect
;
614 HeapFree( GetProcessHeap(), 0, text
);
617 DrawTextW(hdc
, text
, -1, &r
, dtStyle
| DT_CALCRECT
);
618 HeapFree( GetProcessHeap(), 0, text
);
622 if (!GetIconInfo((HICON
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), &iconInfo
))
625 GetObjectW (iconInfo
.hbmColor
, sizeof(BITMAP
), &bm
);
627 r
.right
= r
.left
+ bm
.bmWidth
;
628 r
.bottom
= r
.top
+ bm
.bmHeight
;
630 DeleteObject(iconInfo
.hbmColor
);
631 DeleteObject(iconInfo
.hbmMask
);
635 if (!GetObjectW( (HANDLE
)GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
), sizeof(BITMAP
), &bm
))
638 r
.right
= r
.left
+ bm
.bmWidth
;
639 r
.bottom
= r
.top
+ bm
.bmHeight
;
646 return (UINT
)(LONG
)-1;
649 /* Position label inside bounding rectangle according to
650 * alignment flags. (calculated rect is always left-top aligned).
651 * If label is aligned to any side - shift label in opposite
652 * direction to leave extra space for focus rectangle.
654 switch (dtStyle
& (DT_CENTER
|DT_RIGHT
))
656 case DT_LEFT
: r
.left
++; r
.right
++; break;
657 case DT_CENTER
: n
= r
.right
- r
.left
;
658 r
.left
= rc
->left
+ ((rc
->right
- rc
->left
) - n
) / 2;
659 r
.right
= r
.left
+ n
; break;
660 case DT_RIGHT
: n
= r
.right
- r
.left
;
661 r
.right
= rc
->right
- 1;
662 r
.left
= r
.right
- n
;
666 switch (dtStyle
& (DT_VCENTER
|DT_BOTTOM
))
668 case DT_TOP
: r
.top
++; r
.bottom
++; break;
669 case DT_VCENTER
: n
= r
.bottom
- r
.top
;
670 r
.top
= rc
->top
+ ((rc
->bottom
- rc
->top
) - n
) / 2;
671 r
.bottom
= r
.top
+ n
; break;
672 case DT_BOTTOM
: n
= r
.bottom
- r
.top
;
673 r
.bottom
= rc
->bottom
- 1;
674 r
.top
= r
.bottom
- n
;
683 /**********************************************************************
684 * BUTTON_DrawTextCallback
686 * Callback function used by DrawStateW function.
688 static BOOL CALLBACK
BUTTON_DrawTextCallback(HDC hdc
, LPARAM lp
, WPARAM wp
, int cx
, int cy
)
696 DrawTextW(hdc
, (LPCWSTR
)lp
, -1, &rc
, (UINT
)wp
);
701 /**********************************************************************
704 * Common function for drawing button label.
706 static void BUTTON_DrawLabel(HWND hwnd
, HDC hdc
, UINT dtFlags
, RECT
*rc
)
708 DRAWSTATEPROC lpOutputProc
= NULL
;
712 UINT flags
= IsWindowEnabled(hwnd
) ? DSS_NORMAL
: DSS_DISABLED
;
713 LONG state
= get_button_state( hwnd
);
714 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
717 /* FIXME: To draw disabled label in Win31 look-and-feel, we probably
718 * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION).
719 * I don't have Win31 on hand to verify that, so I leave it as is.
722 if ((style
& BS_PUSHLIKE
) && (state
& BUTTON_3STATE
))
724 hbr
= GetSysColorBrush(COLOR_GRAYTEXT
);
728 switch (style
& (BS_ICON
|BS_BITMAP
))
731 /* DST_COMPLEX -- is 0 */
732 lpOutputProc
= BUTTON_DrawTextCallback
;
733 if (!(text
= get_button_text( hwnd
))) return;
735 wp
= (WPARAM
)dtFlags
;
740 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
745 lp
= GetWindowLongPtrW( hwnd
, HIMAGE_GWL_OFFSET
);
752 DrawStateW(hdc
, hbr
, lpOutputProc
, lp
, wp
, rc
->left
, rc
->top
,
753 rc
->right
- rc
->left
, rc
->bottom
- rc
->top
, flags
);
754 if (text
) HeapFree( GetProcessHeap(), 0, text
);
757 /**********************************************************************
758 * Push Button Functions
760 static void PB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
762 RECT rc
, focus_rect
, r
;
763 UINT dtFlags
, uState
;
768 COLORREF oldTxtColor
;
770 LONG state
= get_button_state( hwnd
);
771 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
772 BOOL pushedState
= (state
& BUTTON_HIGHLIGHTED
);
775 GetClientRect( hwnd
, &rc
);
777 /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */
778 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
779 parent
= GetParent(hwnd
);
780 if (!parent
) parent
= hwnd
;
781 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
782 hOldPen
= (HPEN
)SelectObject(hDC
, SYSCOLOR_GetPen(COLOR_WINDOWFRAME
));
783 hOldBrush
=(HBRUSH
)SelectObject(hDC
,GetSysColorBrush(COLOR_BTNFACE
));
784 oldBkMode
= SetBkMode(hDC
, TRANSPARENT
);
786 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
788 Rectangle(hDC
, rc
.left
, rc
.top
, rc
.right
, rc
.bottom
);
789 InflateRect( &rc
, -1, -1 );
792 uState
= DFCS_BUTTONPUSH
| DFCS_ADJUSTRECT
;
796 else if (pushedState
)
798 if (get_button_type(style
) == BS_DEFPUSHBUTTON
)
801 uState
|= DFCS_PUSHED
;
804 if (state
& (BUTTON_CHECKED
| BUTTON_3STATE
))
805 uState
|= DFCS_CHECKED
;
807 DrawFrameControl( hDC
, &rc
, DFC_BUTTON
, uState
);
811 /* draw button label */
813 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &r
);
815 if (dtFlags
== (UINT
)-1L)
819 OffsetRect(&r
, 1, 1);
821 hRgn
= CreateRectRgn(rc
.left
, rc
.top
, rc
.right
, rc
.bottom
);
822 SelectClipRgn(hDC
, hRgn
);
824 oldTxtColor
= SetTextColor( hDC
, GetSysColor(COLOR_BTNTEXT
) );
826 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &r
);
828 SetTextColor( hDC
, oldTxtColor
);
829 SelectClipRgn(hDC
, 0);
832 if (state
& BUTTON_HASFOCUS
)
834 InflateRect( &focus_rect
, -1, -1 );
835 IntersectRect(&focus_rect
, &focus_rect
, &rc
);
836 DrawFocusRect( hDC
, &focus_rect
);
840 SelectObject( hDC
, hOldPen
);
841 SelectObject( hDC
, hOldBrush
);
842 SetBkMode(hDC
, oldBkMode
);
845 /**********************************************************************
846 * Check Box & Radio Button Functions
849 static void CB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
851 RECT rbox
, rtext
, client
;
857 LONG state
= get_button_state( hwnd
);
858 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
861 if (style
& BS_PUSHLIKE
)
863 PB_Paint( hwnd
, hDC
, action
);
867 GetClientRect(hwnd
, &client
);
868 rbox
= rtext
= client
;
870 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
872 parent
= GetParent(hwnd
);
873 if (!parent
) parent
= hwnd
;
874 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
,
875 (WPARAM
)hDC
, (LPARAM
)hwnd
);
876 if (!hBrush
) /* did the app forget to call defwindowproc ? */
877 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
878 (WPARAM
)hDC
, (LPARAM
)hwnd
);
880 if (style
& BS_LEFTTEXT
)
882 /* magic +4 is what CTL3D expects */
884 rtext
.right
-= checkBoxWidth
+ 4;
885 rbox
.left
= rbox
.right
- checkBoxWidth
;
889 rtext
.left
+= checkBoxWidth
+ 4;
890 rbox
.right
= checkBoxWidth
;
893 /* Since WM_ERASEBKGND does nothing, first prepare background */
894 if (action
== ODA_SELECT
) FillRect( hDC
, &rbox
, hBrush
);
895 if (action
== ODA_DRAWENTIRE
) FillRect( hDC
, &client
, hBrush
);
899 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rtext
);
901 rbox
.top
= rtext
.top
;
902 rbox
.bottom
= rtext
.bottom
;
903 /* Draw the check-box bitmap */
904 if (action
== ODA_DRAWENTIRE
|| action
== ODA_SELECT
)
908 if ((get_button_type(style
) == BS_RADIOBUTTON
) ||
909 (get_button_type(style
) == BS_AUTORADIOBUTTON
)) flags
= DFCS_BUTTONRADIO
;
910 else if (state
& BUTTON_3STATE
) flags
= DFCS_BUTTON3STATE
;
911 else flags
= DFCS_BUTTONCHECK
;
913 if (state
& (BUTTON_CHECKED
| BUTTON_3STATE
)) flags
|= DFCS_CHECKED
;
914 if (state
& BUTTON_HIGHLIGHTED
) flags
|= DFCS_PUSHED
;
916 if (style
& WS_DISABLED
) flags
|= DFCS_INACTIVE
;
918 /* rbox must have the correct height */
919 delta
= rbox
.bottom
- rbox
.top
- checkBoxHeight
;
921 if (style
& BS_TOP
) {
923 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
925 rbox
.top
-= -delta
/2 + 1;
926 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
928 } else if (style
& BS_BOTTOM
) {
930 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
932 rbox
.bottom
+= -delta
/2 + 1;
933 rbox
.top
= rbox
.bottom
-= checkBoxHeight
;
935 } else { /* Default */
937 int ofs
= (delta
/ 2);
938 rbox
.bottom
-= ofs
+ 1;
939 rbox
.top
= rbox
.bottom
- checkBoxHeight
;
940 } else if (delta
< 0) {
941 int ofs
= (-delta
/ 2);
943 rbox
.bottom
= rbox
.top
+ checkBoxHeight
;
947 DrawFrameControl( hDC
, &rbox
, DFC_BUTTON
, flags
);
950 if (dtFlags
== (UINT
)-1L) /* Noting to draw */
952 hRgn
= CreateRectRgn(client
.left
, client
.top
, client
.right
, client
.bottom
);
953 SelectClipRgn(hDC
, hRgn
);
956 if (action
== ODA_DRAWENTIRE
)
957 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rtext
);
960 if ((action
== ODA_FOCUS
) ||
961 ((action
== ODA_DRAWENTIRE
) && (state
& BUTTON_HASFOCUS
)))
965 IntersectRect(&rtext
, &rtext
, &client
);
966 DrawFocusRect( hDC
, &rtext
);
968 SelectClipRgn(hDC
, 0);
972 /**********************************************************************
973 * BUTTON_CheckAutoRadioButton
975 * hwnd is checked, uncheck every other auto radio button in group
977 static void BUTTON_CheckAutoRadioButton( HWND hwnd
)
979 HWND parent
, sibling
, start
;
981 parent
= GetParent(hwnd
);
982 /* make sure that starting control is not disabled or invisible */
983 start
= sibling
= GetNextDlgGroupItem( parent
, hwnd
, TRUE
);
987 if ((hwnd
!= sibling
) &&
988 ((GetWindowLongW( sibling
, GWL_STYLE
) & 0x0f) == BS_AUTORADIOBUTTON
))
989 SendMessageW( sibling
, BM_SETCHECK
, BUTTON_UNCHECKED
, 0 );
990 sibling
= GetNextDlgGroupItem( parent
, sibling
, FALSE
);
991 } while (sibling
!= start
);
995 /**********************************************************************
996 * Group Box Functions
999 static void GB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1006 LONG style
= GetWindowLongW( hwnd
, GWL_STYLE
);
1009 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1010 /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */
1011 parent
= GetParent(hwnd
);
1012 if (!parent
) parent
= hwnd
;
1013 hbr
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORSTATIC
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1014 if (!hbr
) /* did the app forget to call defwindowproc ? */
1015 hbr
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORSTATIC
,
1016 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1018 GetClientRect( hwnd
, &rc
);
1021 GetTextMetricsW (hDC
, &tm
);
1022 rcFrame
.top
+= (tm
.tmHeight
/ 2) - 1;
1023 DrawEdge (hDC
, &rcFrame
, EDGE_ETCHED
, BF_RECT
| ((style
& BS_FLAT
) ? BF_FLAT
: 0));
1025 InflateRect(&rc
, -7, 1);
1026 dtFlags
= BUTTON_CalcLabelRect(hwnd
, hDC
, &rc
);
1028 if (dtFlags
== (UINT
)-1L)
1031 /* Because buttons have CS_PARENTDC class style, there is a chance
1032 * that label will be drawn out of client rect.
1033 * But Windows doesn't clip label's rect, so do I.
1036 /* There is 1-pixel marging at the left, right, and bottom */
1037 rc
.left
--; rc
.right
++; rc
.bottom
++;
1038 FillRect(hDC
, &rc
, hbr
);
1039 rc
.left
++; rc
.right
--; rc
.bottom
--;
1041 BUTTON_DrawLabel(hwnd
, hDC
, dtFlags
, &rc
);
1045 /**********************************************************************
1046 * User Button Functions
1049 static void UB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1054 LONG state
= get_button_state( hwnd
);
1057 if (action
== ODA_SELECT
) return;
1059 GetClientRect( hwnd
, &rc
);
1061 if ((hFont
= get_button_font( hwnd
))) SelectObject( hDC
, hFont
);
1063 parent
= GetParent(hwnd
);
1064 if (!parent
) parent
= hwnd
;
1065 hBrush
= (HBRUSH
)SendMessageW(parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1066 if (!hBrush
) /* did the app forget to call defwindowproc ? */
1067 hBrush
= (HBRUSH
)DefWindowProcW(parent
, WM_CTLCOLORBTN
,
1068 (WPARAM
)hDC
, (LPARAM
)hwnd
);
1070 FillRect( hDC
, &rc
, hBrush
);
1071 if ((action
== ODA_FOCUS
) ||
1072 ((action
== ODA_DRAWENTIRE
) && (state
& BUTTON_HASFOCUS
)))
1073 DrawFocusRect( hDC
, &rc
);
1077 /**********************************************************************
1078 * Ownerdrawn Button Functions
1081 static void OB_Paint( HWND hwnd
, HDC hDC
, UINT action
)
1083 LONG state
= get_button_state( hwnd
);
1087 LONG_PTR id
= GetWindowLongPtrW( hwnd
, GWLP_ID
);
1089 HFONT hFont
, hPrevFont
= 0;
1091 dis
.CtlType
= ODT_BUTTON
;
1094 dis
.itemAction
= action
;
1095 dis
.itemState
= ((state
& BUTTON_HASFOCUS
) ? ODS_FOCUS
: 0) |
1096 ((state
& BUTTON_HIGHLIGHTED
) ? ODS_SELECTED
: 0) |
1097 (IsWindowEnabled(hwnd
) ? 0: ODS_DISABLED
);
1098 dis
.hwndItem
= hwnd
;
1101 GetClientRect( hwnd
, &dis
.rcItem
);
1103 clipRegion
= CreateRectRgnIndirect(&dis
.rcItem
);
1104 if (GetClipRgn(hDC
, clipRegion
) != 1)
1106 DeleteObject(clipRegion
);
1109 clipRect
= dis
.rcItem
;
1110 DPtoLP(hDC
, (LPPOINT
) &clipRect
, 2);
1111 IntersectClipRect(hDC
, clipRect
.left
, clipRect
.top
, clipRect
.right
, clipRect
.bottom
);
1113 if ((hFont
= get_button_font( hwnd
))) hPrevFont
= SelectObject( hDC
, hFont
);
1114 parent
= GetParent(hwnd
);
1115 if (!parent
) parent
= hwnd
;
1116 SendMessageW( parent
, WM_CTLCOLORBTN
, (WPARAM
)hDC
, (LPARAM
)hwnd
);
1117 SendMessageW( GetParent(hwnd
), WM_DRAWITEM
, id
, (LPARAM
)&dis
);
1118 if (hPrevFont
) SelectObject(hDC
, hPrevFont
);
1119 SelectClipRgn(hDC
, clipRegion
);