4 * Copyright 1993 Martin Ayotte
5 * Copyright 1994, 1996 Alexandre Julliard
10 #include "wine/winuser16.h"
13 #include "debugtools.h"
16 DEFAULT_DEBUG_CHANNEL(scroll
);
20 INT CurVal
; /* Current scroll-bar value */
21 INT MinVal
; /* Minimum scroll-bar value */
22 INT MaxVal
; /* Maximum scroll-bar value */
23 INT Page
; /* Page size of scroll bar (Win32) */
24 UINT flags
; /* EnableScrollBar flags */
28 static HBITMAP hUpArrow
;
29 static HBITMAP hDnArrow
;
30 static HBITMAP hLfArrow
;
31 static HBITMAP hRgArrow
;
32 static HBITMAP hUpArrowD
;
33 static HBITMAP hDnArrowD
;
34 static HBITMAP hLfArrowD
;
35 static HBITMAP hRgArrowD
;
36 static HBITMAP hUpArrowI
;
37 static HBITMAP hDnArrowI
;
38 static HBITMAP hLfArrowI
;
39 static HBITMAP hRgArrowI
;
41 #define TOP_ARROW(flags,pressed) \
42 (((flags)&ESB_DISABLE_UP) ? hUpArrowI : ((pressed) ? hUpArrowD:hUpArrow))
43 #define BOTTOM_ARROW(flags,pressed) \
44 (((flags)&ESB_DISABLE_DOWN) ? hDnArrowI : ((pressed) ? hDnArrowD:hDnArrow))
45 #define LEFT_ARROW(flags,pressed) \
46 (((flags)&ESB_DISABLE_LEFT) ? hLfArrowI : ((pressed) ? hLfArrowD:hLfArrow))
47 #define RIGHT_ARROW(flags,pressed) \
48 (((flags)&ESB_DISABLE_RIGHT) ? hRgArrowI : ((pressed) ? hRgArrowD:hRgArrow))
51 /* Minimum size of the rectangle between the arrows */
52 #define SCROLL_MIN_RECT 4
54 /* Minimum size of the thumb in pixels */
55 #define SCROLL_MIN_THUMB 6
57 /* Overlap between arrows and thumb */
58 #define SCROLL_ARROW_THUMB_OVERLAP ((TWEAK_WineLook == WIN31_LOOK) ? 1 : 0)
60 /* Delay (in ms) before first repetition when holding the button down */
61 #define SCROLL_FIRST_DELAY 200
63 /* Delay (in ms) between scroll repetitions */
64 #define SCROLL_REPEAT_DELAY 50
67 #define SCROLL_TIMER 0
69 /* Scroll-bar hit testing */
72 SCROLL_NOWHERE
, /* Outside the scroll bar */
73 SCROLL_TOP_ARROW
, /* Top or left arrow */
74 SCROLL_TOP_RECT
, /* Rectangle between the top arrow and the thumb */
75 SCROLL_THUMB
, /* Thumb rectangle */
76 SCROLL_BOTTOM_RECT
, /* Rectangle between the thumb and the bottom arrow */
77 SCROLL_BOTTOM_ARROW
/* Bottom or right arrow */
80 /* What to do after SCROLL_SetScrollInfo() */
81 #define SA_SSI_HIDE 0x0001
82 #define SA_SSI_SHOW 0x0002
83 #define SA_SSI_REFRESH 0x0004
84 #define SA_SSI_REPAINT_ARROWS 0x0008
86 /* Thumb-tracking info */
87 static HWND SCROLL_TrackingWin
= 0;
88 static INT SCROLL_TrackingBar
= 0;
89 static INT SCROLL_TrackingPos
= 0;
90 static INT SCROLL_TrackingVal
= 0;
91 /* Hit test code of the last button-down event */
92 static enum SCROLL_HITTEST SCROLL_trackHitTest
;
93 static BOOL SCROLL_trackVertical
;
95 /* Is the moving thumb being displayed? */
96 static BOOL SCROLL_MovingThumb
= FALSE
;
99 static BOOL
SCROLL_ShowScrollBar( HWND hwnd
, INT nBar
,
100 BOOL fShowH
, BOOL fShowV
);
101 static INT
SCROLL_SetScrollInfo( HWND hwnd
, INT nBar
,
102 const SCROLLINFO
*info
, INT
*action
);
103 static void SCROLL_DrawInterior_9x( HWND hwnd
, HDC hdc
, INT nBar
,
104 RECT
*rect
, INT arrowSize
,
105 INT thumbSize
, INT thumbPos
,
106 UINT flags
, BOOL vertical
,
107 BOOL top_selected
, BOOL bottom_selected
);
108 static LRESULT WINAPI
ScrollBarWndProc( HWND hwnd
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
);
111 /*********************************************************************
112 * scrollbar class descriptor
114 const struct builtin_class_descr SCROLL_builtin_class
=
116 "ScrollBar", /* name */
117 CS_GLOBALCLASS
| CS_DBLCLKS
| CS_VREDRAW
| CS_HREDRAW
| CS_PARENTDC
, /* style */
118 NULL
, /* procA (winproc is Unicode only) */
119 ScrollBarWndProc
, /* procW */
120 sizeof(SCROLLBAR_INFO
), /* extra */
121 IDC_ARROWA
, /* cursor */
126 /***********************************************************************
129 static void SCROLL_LoadBitmaps(void)
131 hUpArrow
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_UPARROW
) );
132 hDnArrow
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_DNARROW
) );
133 hLfArrow
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_LFARROW
) );
134 hRgArrow
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_RGARROW
) );
135 hUpArrowD
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_UPARROWD
) );
136 hDnArrowD
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_DNARROWD
) );
137 hLfArrowD
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_LFARROWD
) );
138 hRgArrowD
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_RGARROWD
) );
139 hUpArrowI
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_UPARROWI
) );
140 hDnArrowI
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_DNARROWI
) );
141 hLfArrowI
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_LFARROWI
) );
142 hRgArrowI
= LoadBitmapA( 0, MAKEINTRESOURCEA(OBM_RGARROWI
) );
146 /***********************************************************************
147 * SCROLL_GetScrollInfo
149 static SCROLLBAR_INFO
*SCROLL_GetScrollInfo( HWND hwnd
, INT nBar
)
151 SCROLLBAR_INFO
*infoPtr
;
152 WND
*wndPtr
= WIN_FindWndPtr( hwnd
);
154 if (!wndPtr
) return NULL
;
157 case SB_HORZ
: infoPtr
= (SCROLLBAR_INFO
*)wndPtr
->pHScroll
; break;
158 case SB_VERT
: infoPtr
= (SCROLLBAR_INFO
*)wndPtr
->pVScroll
; break;
159 case SB_CTL
: infoPtr
= (SCROLLBAR_INFO
*)wndPtr
->wExtra
; break;
161 WIN_ReleaseWndPtr( wndPtr
);
165 if (!infoPtr
) /* Create the info structure if needed */
167 if ((infoPtr
= HeapAlloc( GetProcessHeap(), 0, sizeof(SCROLLBAR_INFO
) )))
169 infoPtr
->MinVal
= infoPtr
->CurVal
= infoPtr
->Page
= 0;
170 infoPtr
->MaxVal
= 100;
171 infoPtr
->flags
= ESB_ENABLE_BOTH
;
172 if (nBar
== SB_HORZ
) wndPtr
->pHScroll
= infoPtr
;
173 else wndPtr
->pVScroll
= infoPtr
;
175 if (!hUpArrow
) SCROLL_LoadBitmaps();
177 WIN_ReleaseWndPtr( wndPtr
);
182 /***********************************************************************
183 * SCROLL_GetScrollBarRect
185 * Compute the scroll bar rectangle, in drawing coordinates (i.e. client
186 * coords for SB_CTL, window coords for SB_VERT and SB_HORZ).
187 * 'arrowSize' returns the width or height of an arrow (depending on
188 * the orientation of the scrollbar), 'thumbSize' returns the size of
189 * the thumb, and 'thumbPos' returns the position of the thumb
190 * relative to the left or to the top.
191 * Return TRUE if the scrollbar is vertical, FALSE if horizontal.
193 static BOOL
SCROLL_GetScrollBarRect( HWND hwnd
, INT nBar
, RECT
*lprect
,
194 INT
*arrowSize
, INT
*thumbSize
,
199 WND
*wndPtr
= WIN_FindWndPtr( hwnd
);
204 lprect
->left
= wndPtr
->rectClient
.left
- wndPtr
->rectWindow
.left
;
205 lprect
->top
= wndPtr
->rectClient
.bottom
- wndPtr
->rectWindow
.top
;
206 lprect
->right
= wndPtr
->rectClient
.right
- wndPtr
->rectWindow
.left
;
207 lprect
->bottom
= lprect
->top
+ GetSystemMetrics(SM_CYHSCROLL
);
208 if(wndPtr
->dwStyle
& WS_BORDER
) {
211 } else if(wndPtr
->dwStyle
& WS_VSCROLL
)
217 lprect
->left
= wndPtr
->rectClient
.right
- wndPtr
->rectWindow
.left
;
218 lprect
->top
= wndPtr
->rectClient
.top
- wndPtr
->rectWindow
.top
;
219 lprect
->right
= lprect
->left
+ GetSystemMetrics(SM_CXVSCROLL
);
220 lprect
->bottom
= wndPtr
->rectClient
.bottom
- wndPtr
->rectWindow
.top
;
221 if(wndPtr
->dwStyle
& WS_BORDER
) {
224 } else if(wndPtr
->dwStyle
& WS_HSCROLL
)
230 GetClientRect( hwnd
, lprect
);
231 vertical
= ((wndPtr
->dwStyle
& SBS_VERT
) != 0);
235 WIN_ReleaseWndPtr(wndPtr
);
239 if (vertical
) pixels
= lprect
->bottom
- lprect
->top
;
240 else pixels
= lprect
->right
- lprect
->left
;
242 if (pixels
<= 2*GetSystemMetrics(SM_CXVSCROLL
) + SCROLL_MIN_RECT
)
244 if (pixels
> SCROLL_MIN_RECT
)
245 *arrowSize
= (pixels
- SCROLL_MIN_RECT
) / 2;
248 *thumbPos
= *thumbSize
= 0;
252 SCROLLBAR_INFO
*info
= SCROLL_GetScrollInfo( hwnd
, nBar
);
254 *arrowSize
= GetSystemMetrics(SM_CXVSCROLL
);
255 pixels
-= (2 * (GetSystemMetrics(SM_CXVSCROLL
) - SCROLL_ARROW_THUMB_OVERLAP
));
259 *thumbSize
= pixels
* info
->Page
/ (info
->MaxVal
-info
->MinVal
+1);
260 if (*thumbSize
< SCROLL_MIN_THUMB
) *thumbSize
= SCROLL_MIN_THUMB
;
262 else *thumbSize
= GetSystemMetrics(SM_CXVSCROLL
);
264 if (((pixels
-= *thumbSize
) < 0) ||
265 ((info
->flags
& ESB_DISABLE_BOTH
) == ESB_DISABLE_BOTH
))
267 /* Rectangle too small or scrollbar disabled -> no thumb */
268 *thumbPos
= *thumbSize
= 0;
272 INT max
= info
->MaxVal
- max( info
->Page
-1, 0 );
273 if (info
->MinVal
>= max
)
274 *thumbPos
= *arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
;
276 *thumbPos
= *arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
277 + pixels
* (info
->CurVal
-info
->MinVal
) / (max
- info
->MinVal
);
280 WIN_ReleaseWndPtr(wndPtr
);
285 /***********************************************************************
288 * Compute the current scroll position based on the thumb position in pixels
289 * from the top of the scroll-bar.
291 static UINT
SCROLL_GetThumbVal( SCROLLBAR_INFO
*infoPtr
, RECT
*rect
,
292 BOOL vertical
, INT pos
)
295 INT pixels
= vertical
? rect
->bottom
-rect
->top
: rect
->right
-rect
->left
;
297 if ((pixels
-= 2*(GetSystemMetrics(SM_CXVSCROLL
) - SCROLL_ARROW_THUMB_OVERLAP
)) <= 0)
298 return infoPtr
->MinVal
;
302 thumbSize
= pixels
* infoPtr
->Page
/(infoPtr
->MaxVal
-infoPtr
->MinVal
+1);
303 if (thumbSize
< SCROLL_MIN_THUMB
) thumbSize
= SCROLL_MIN_THUMB
;
305 else thumbSize
= GetSystemMetrics(SM_CXVSCROLL
);
307 if ((pixels
-= thumbSize
) <= 0) return infoPtr
->MinVal
;
309 pos
= max( 0, pos
- (GetSystemMetrics(SM_CXVSCROLL
) - SCROLL_ARROW_THUMB_OVERLAP
) );
310 if (pos
> pixels
) pos
= pixels
;
312 if (!infoPtr
->Page
) pos
*= infoPtr
->MaxVal
- infoPtr
->MinVal
;
313 else pos
*= infoPtr
->MaxVal
- infoPtr
->MinVal
- infoPtr
->Page
+ 1;
314 return infoPtr
->MinVal
+ ((pos
+ pixels
/ 2) / pixels
);
317 /***********************************************************************
320 static BOOL
SCROLL_PtInRectEx( LPRECT lpRect
, POINT pt
, BOOL vertical
)
326 rect
.left
-= lpRect
->right
- lpRect
->left
;
327 rect
.right
+= lpRect
->right
- lpRect
->left
;
331 rect
.top
-= lpRect
->bottom
- lpRect
->top
;
332 rect
.bottom
+= lpRect
->bottom
- lpRect
->top
;
334 return PtInRect( &rect
, pt
);
337 /***********************************************************************
340 static POINT
SCROLL_ClipPos( LPRECT lpRect
, POINT pt
)
342 if( pt
.x
< lpRect
->left
)
345 if( pt
.x
> lpRect
->right
)
346 pt
.x
= lpRect
->right
;
348 if( pt
.y
< lpRect
->top
)
351 if( pt
.y
> lpRect
->bottom
)
352 pt
.y
= lpRect
->bottom
;
358 /***********************************************************************
361 * Scroll-bar hit testing (don't confuse this with WM_NCHITTEST!).
363 static enum SCROLL_HITTEST
SCROLL_HitTest( HWND hwnd
, INT nBar
,
364 POINT pt
, BOOL bDragging
)
366 INT arrowSize
, thumbSize
, thumbPos
;
369 BOOL vertical
= SCROLL_GetScrollBarRect( hwnd
, nBar
, &rect
,
370 &arrowSize
, &thumbSize
, &thumbPos
);
372 if ( (bDragging
&& !SCROLL_PtInRectEx( &rect
, pt
, vertical
)) ||
373 (!PtInRect( &rect
, pt
)) ) return SCROLL_NOWHERE
;
377 if (pt
.y
< rect
.top
+ arrowSize
) return SCROLL_TOP_ARROW
;
378 if (pt
.y
>= rect
.bottom
- arrowSize
) return SCROLL_BOTTOM_ARROW
;
379 if (!thumbPos
) return SCROLL_TOP_RECT
;
381 if (pt
.y
< thumbPos
) return SCROLL_TOP_RECT
;
382 if (pt
.y
>= thumbPos
+ thumbSize
) return SCROLL_BOTTOM_RECT
;
384 else /* horizontal */
386 if (pt
.x
< rect
.left
+ arrowSize
) return SCROLL_TOP_ARROW
;
387 if (pt
.x
>= rect
.right
- arrowSize
) return SCROLL_BOTTOM_ARROW
;
388 if (!thumbPos
) return SCROLL_TOP_RECT
;
390 if (pt
.x
< thumbPos
) return SCROLL_TOP_RECT
;
391 if (pt
.x
>= thumbPos
+ thumbSize
) return SCROLL_BOTTOM_RECT
;
397 /***********************************************************************
400 * Draw the scroll bar arrows.
402 static void SCROLL_DrawArrows_9x( HDC hdc
, SCROLLBAR_INFO
*infoPtr
,
403 RECT
*rect
, INT arrowSize
, BOOL vertical
,
404 BOOL top_pressed
, BOOL bottom_pressed
)
410 r
.bottom
= r
.top
+ arrowSize
;
412 r
.right
= r
.left
+ arrowSize
;
414 DrawFrameControl( hdc
, &r
, DFC_SCROLL
,
415 (vertical
? DFCS_SCROLLUP
: DFCS_SCROLLLEFT
)
416 | (top_pressed
? (DFCS_PUSHED
| DFCS_FLAT
) : 0 )
417 | (infoPtr
->flags
&ESB_DISABLE_LTUP
? DFCS_INACTIVE
: 0 ) );
421 r
.top
= r
.bottom
-arrowSize
;
423 r
.left
= r
.right
-arrowSize
;
425 DrawFrameControl( hdc
, &r
, DFC_SCROLL
,
426 (vertical
? DFCS_SCROLLDOWN
: DFCS_SCROLLRIGHT
)
427 | (bottom_pressed
? (DFCS_PUSHED
| DFCS_FLAT
) : 0 )
428 | (infoPtr
->flags
&ESB_DISABLE_RTDN
? DFCS_INACTIVE
: 0) );
431 static void SCROLL_DrawArrows_31( HDC hdc
, SCROLLBAR_INFO
*infoPtr
,
432 RECT
*rect
, INT arrowSize
, BOOL vertical
,
433 BOOL top_pressed
, BOOL bottom_pressed
)
435 HDC hdcMem
= CreateCompatibleDC( hdc
);
436 HBITMAP hbmpPrev
= SelectObject( hdcMem
, vertical
?
437 TOP_ARROW(infoPtr
->flags
, top_pressed
)
438 : LEFT_ARROW(infoPtr
->flags
, top_pressed
));
440 SetStretchBltMode( hdc
, STRETCH_DELETESCANS
);
441 StretchBlt( hdc
, rect
->left
, rect
->top
,
442 vertical
? rect
->right
-rect
->left
: arrowSize
,
443 vertical
? arrowSize
: rect
->bottom
-rect
->top
,
445 GetSystemMetrics(SM_CXVSCROLL
),GetSystemMetrics(SM_CYHSCROLL
),
448 SelectObject( hdcMem
, vertical
?
449 BOTTOM_ARROW( infoPtr
->flags
, bottom_pressed
)
450 : RIGHT_ARROW( infoPtr
->flags
, bottom_pressed
) );
452 StretchBlt( hdc
, rect
->left
, rect
->bottom
- arrowSize
,
453 rect
->right
- rect
->left
, arrowSize
,
455 GetSystemMetrics(SM_CXVSCROLL
),GetSystemMetrics(SM_CYHSCROLL
),
458 StretchBlt( hdc
, rect
->right
- arrowSize
, rect
->top
,
459 arrowSize
, rect
->bottom
- rect
->top
,
461 GetSystemMetrics(SM_CXVSCROLL
), GetSystemMetrics(SM_CYHSCROLL
),
463 SelectObject( hdcMem
, hbmpPrev
);
467 static void SCROLL_DrawArrows( HDC hdc
, SCROLLBAR_INFO
*infoPtr
,
468 RECT
*rect
, INT arrowSize
, BOOL vertical
,
469 BOOL top_pressed
, BOOL bottom_pressed
)
471 if( TWEAK_WineLook
== WIN31_LOOK
)
472 SCROLL_DrawArrows_31( hdc
, infoPtr
, rect
, arrowSize
,
473 vertical
, top_pressed
,bottom_pressed
);
475 SCROLL_DrawArrows_9x( hdc
, infoPtr
, rect
, arrowSize
,
476 vertical
, top_pressed
,bottom_pressed
);
480 /***********************************************************************
481 * SCROLL_DrawMovingThumb
483 * Draw the moving thumb rectangle.
485 static void SCROLL_DrawMovingThumb_31( HDC hdc
, RECT
*rect
, BOOL vertical
,
486 INT arrowSize
, INT thumbSize
)
491 r
.top
+= SCROLL_TrackingPos
;
492 if (r
.top
< rect
->top
+ arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
)
493 r
.top
= rect
->top
+ arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
;
494 if (r
.top
+ thumbSize
>
495 rect
->bottom
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
))
496 r
.top
= rect
->bottom
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
)
498 r
.bottom
= r
.top
+ thumbSize
;
502 r
.left
+= SCROLL_TrackingPos
;
503 if (r
.left
< rect
->left
+ arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
)
504 r
.left
= rect
->left
+ arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
;
505 if (r
.left
+ thumbSize
>
506 rect
->right
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
))
507 r
.left
= rect
->right
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
)
509 r
.right
= r
.left
+ thumbSize
;
512 DrawFocusRect( hdc
, &r
);
513 SCROLL_MovingThumb
= !SCROLL_MovingThumb
;
516 static void SCROLL_DrawMovingThumb_9x( HDC hdc
, RECT
*rect
, BOOL vertical
,
517 INT arrowSize
, INT thumbSize
)
519 INT pos
= SCROLL_TrackingPos
;
523 max_size
= rect
->bottom
- rect
->top
;
525 max_size
= rect
->right
- rect
->left
;
527 max_size
-= (arrowSize
-SCROLL_ARROW_THUMB_OVERLAP
) + thumbSize
;
529 if( pos
< (arrowSize
-SCROLL_ARROW_THUMB_OVERLAP
) )
530 pos
= (arrowSize
-SCROLL_ARROW_THUMB_OVERLAP
);
531 else if( pos
> max_size
)
534 SCROLL_DrawInterior_9x( SCROLL_TrackingWin
, hdc
, SCROLL_TrackingBar
,
535 rect
, arrowSize
, thumbSize
, pos
,
536 0, vertical
, FALSE
, FALSE
);
538 SCROLL_MovingThumb
= !SCROLL_MovingThumb
;
541 static void SCROLL_DrawMovingThumb( HDC hdc
, RECT
*rect
, BOOL vertical
,
542 INT arrowSize
, INT thumbSize
)
544 if( TWEAK_WineLook
== WIN31_LOOK
)
545 SCROLL_DrawMovingThumb_31( hdc
, rect
, vertical
, arrowSize
, thumbSize
);
547 SCROLL_DrawMovingThumb_9x( hdc
, rect
, vertical
, arrowSize
, thumbSize
);
550 /***********************************************************************
551 * SCROLL_DrawInterior
553 * Draw the scroll bar interior (everything except the arrows).
555 static void SCROLL_DrawInterior_9x( HWND hwnd
, HDC hdc
, INT nBar
,
556 RECT
*rect
, INT arrowSize
,
557 INT thumbSize
, INT thumbPos
,
558 UINT flags
, BOOL vertical
,
559 BOOL top_selected
, BOOL bottom_selected
)
563 HBRUSH hSaveBrush
,hBrush
;
565 /* Only scrollbar controls send WM_CTLCOLORSCROLLBAR.
566 * The window-owned scrollbars need to call DEFWND_ControlColor
567 * to correctly setup default scrollbar colors
571 hBrush
= (HBRUSH
)SendMessageA( GetParent(hwnd
), WM_CTLCOLORSCROLLBAR
,
572 (WPARAM
)hdc
,(LPARAM
)hwnd
);
576 hBrush
= DEFWND_ControlColor( hdc
, CTLCOLOR_SCROLLBAR
);
579 hSavePen
= SelectObject( hdc
, GetSysColorPen(COLOR_WINDOWFRAME
) );
580 hSaveBrush
= SelectObject( hdc
, hBrush
);
582 /* Calculate the scroll rectangle */
586 r
.top
+= arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
;
587 r
.bottom
-= (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
);
591 r
.left
+= arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
;
592 r
.right
-= (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
);
595 /* Draw the scroll rectangles and thumb */
596 if (!thumbPos
) /* No thumb to draw */
598 PatBlt( hdc
, r
.left
, r
.top
,
599 r
.right
- r
.left
, r
.bottom
- r
.top
,
602 /* cleanup and return */
603 SelectObject( hdc
, hSavePen
);
604 SelectObject( hdc
, hSaveBrush
);
610 PatBlt( hdc
, r
.left
, r
.top
,
612 thumbPos
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
),
613 top_selected
? 0x0f0000 : PATCOPY
);
614 r
.top
+= thumbPos
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
);
615 PatBlt( hdc
, r
.left
, r
.top
+ thumbSize
,
617 r
.bottom
- r
.top
- thumbSize
,
618 bottom_selected
? 0x0f0000 : PATCOPY
);
619 r
.bottom
= r
.top
+ thumbSize
;
621 else /* horizontal */
623 PatBlt( hdc
, r
.left
, r
.top
,
624 thumbPos
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
),
626 top_selected
? 0x0f0000 : PATCOPY
);
627 r
.left
+= thumbPos
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
);
628 PatBlt( hdc
, r
.left
+ thumbSize
, r
.top
,
629 r
.right
- r
.left
- thumbSize
,
631 bottom_selected
? 0x0f0000 : PATCOPY
);
632 r
.right
= r
.left
+ thumbSize
;
636 DrawEdge( hdc
, &r
, EDGE_RAISED
, BF_RECT
| BF_MIDDLE
);
639 SelectObject( hdc
, hSavePen
);
640 SelectObject( hdc
, hSaveBrush
);
644 static void SCROLL_DrawInterior( HWND hwnd
, HDC hdc
, INT nBar
,
645 RECT
*rect
, INT arrowSize
,
646 INT thumbSize
, INT thumbPos
,
647 UINT flags
, BOOL vertical
,
648 BOOL top_selected
, BOOL bottom_selected
)
652 HBRUSH hSaveBrush
,hBrush
;
653 BOOL Save_SCROLL_MovingThumb
= SCROLL_MovingThumb
;
655 if (Save_SCROLL_MovingThumb
&&
656 (SCROLL_TrackingWin
== hwnd
) &&
657 (SCROLL_TrackingBar
== nBar
))
658 SCROLL_DrawMovingThumb( hdc
, rect
, vertical
, arrowSize
, thumbSize
);
660 /* Select the correct brush and pen */
662 if (TWEAK_WineLook
== WIN31_LOOK
&& (flags
& ESB_DISABLE_BOTH
) == ESB_DISABLE_BOTH
)
664 /* This ought to be the color of the parent window */
665 hBrush
= GetSysColorBrush(COLOR_WINDOW
);
669 /* Only scrollbar controls send WM_CTLCOLORSCROLLBAR.
670 * The window-owned scrollbars need to call DEFWND_ControlColor
671 * to correctly setup default scrollbar colors
673 if (nBar
== SB_CTL
) {
674 hBrush
= (HBRUSH
)SendMessageA( GetParent(hwnd
), WM_CTLCOLORSCROLLBAR
,
675 (WPARAM
)hdc
,(LPARAM
)hwnd
);
677 hBrush
= DEFWND_ControlColor( hdc
, CTLCOLOR_SCROLLBAR
);
680 hSavePen
= SelectObject( hdc
, GetSysColorPen(COLOR_WINDOWFRAME
) );
681 hSaveBrush
= SelectObject( hdc
, hBrush
);
683 /* Calculate the scroll rectangle */
688 r
.top
+= arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
;
689 r
.bottom
-= (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
);
693 r
.left
+= arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
;
694 r
.right
-= (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
);
697 /* Draw the scroll bar frame */
699 /* Only draw outline if Win 3.1. Mar 24, 1999 - Ronald B. Cemer */
700 if (TWEAK_WineLook
== WIN31_LOOK
)
701 Rectangle( hdc
, r
.left
, r
.top
, r
.right
, r
.bottom
);
703 /* Draw the scroll rectangles and thumb */
705 if (!thumbPos
) /* No thumb to draw */
707 INT offset
= (TWEAK_WineLook
> WIN31_LOOK
) ? 0 : 1;
709 PatBlt( hdc
, r
.left
+offset
, r
.top
+offset
,
710 r
.right
- r
.left
- 2*offset
, r
.bottom
- r
.top
- 2*offset
,
713 /* cleanup and return */
714 SelectObject( hdc
, hSavePen
);
715 SelectObject( hdc
, hSaveBrush
);
721 INT offset
= (TWEAK_WineLook
== WIN31_LOOK
) ? 1 : 0;
723 PatBlt( hdc
, r
.left
+ offset
, r
.top
+ offset
,
724 r
.right
- r
.left
- offset
*2,
725 thumbPos
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
) - offset
,
726 top_selected
? 0x0f0000 : PATCOPY
);
727 r
.top
+= thumbPos
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
);
728 PatBlt( hdc
, r
.left
+ offset
, r
.top
+ thumbSize
,
729 r
.right
- r
.left
- offset
*2,
730 r
.bottom
- r
.top
- thumbSize
- offset
,
731 bottom_selected
? 0x0f0000 : PATCOPY
);
732 r
.bottom
= r
.top
+ thumbSize
;
734 else /* horizontal */
736 INT offset
= (TWEAK_WineLook
== WIN31_LOOK
) ? 1 : 0;
738 PatBlt( hdc
, r
.left
+ offset
, r
.top
+ offset
,
739 thumbPos
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
),
740 r
.bottom
- r
.top
- offset
*2,
741 top_selected
? 0x0f0000 : PATCOPY
);
742 r
.left
+= thumbPos
- (arrowSize
- SCROLL_ARROW_THUMB_OVERLAP
);
743 PatBlt( hdc
, r
.left
+ thumbSize
, r
.top
+ offset
,
744 r
.right
- r
.left
- thumbSize
- offset
,
745 r
.bottom
- r
.top
- offset
*2,
746 bottom_selected
? 0x0f0000 : PATCOPY
);
747 r
.right
= r
.left
+ thumbSize
;
752 SelectObject( hdc
, GetSysColorBrush(COLOR_BTNFACE
) );
753 if (TWEAK_WineLook
== WIN31_LOOK
)
755 Rectangle( hdc
, r
.left
, r
.top
, r
.right
, r
.bottom
);
760 Rectangle( hdc
, r
.left
+1, r
.top
+1, r
.right
-1, r
.bottom
-1 );
762 DrawEdge( hdc
, &r
, EDGE_RAISED
, BF_RECT
);
764 if (Save_SCROLL_MovingThumb
&&
765 (SCROLL_TrackingWin
== hwnd
) &&
766 (SCROLL_TrackingBar
== nBar
))
767 SCROLL_DrawMovingThumb( hdc
, rect
, vertical
, arrowSize
, thumbSize
);
770 SelectObject( hdc
, hSavePen
);
771 SelectObject( hdc
, hSaveBrush
);
775 /***********************************************************************
776 * SCROLL_DrawScrollBar
778 * Redraw the whole scrollbar.
780 void SCROLL_DrawScrollBar( HWND hwnd
, HDC hdc
, INT nBar
,
781 BOOL arrows
, BOOL interior
)
783 INT arrowSize
, thumbSize
, thumbPos
;
786 WND
*wndPtr
= WIN_FindWndPtr( hwnd
);
787 SCROLLBAR_INFO
*infoPtr
= SCROLL_GetScrollInfo( hwnd
, nBar
);
788 BOOL Save_SCROLL_MovingThumb
= SCROLL_MovingThumb
;
790 if (!wndPtr
|| !infoPtr
||
791 ((nBar
== SB_VERT
) && !(wndPtr
->dwStyle
& WS_VSCROLL
)) ||
792 ((nBar
== SB_HORZ
) && !(wndPtr
->dwStyle
& WS_HSCROLL
))) goto END
;
793 if (!WIN_IsWindowDrawable( wndPtr
, FALSE
)) goto END
;
795 vertical
= SCROLL_GetScrollBarRect( hwnd
, nBar
, &rect
,
796 &arrowSize
, &thumbSize
, &thumbPos
);
798 /* do not draw if the scrollbar rectangle is empty */
799 if(IsRectEmpty(&rect
))
802 if (Save_SCROLL_MovingThumb
&&
803 (SCROLL_TrackingWin
== hwnd
) &&
804 (SCROLL_TrackingBar
== nBar
))
805 SCROLL_DrawMovingThumb( hdc
, &rect
, vertical
, arrowSize
, thumbSize
);
807 /* Draw the arrows */
809 if (arrows
&& arrowSize
)
811 if( vertical
== SCROLL_trackVertical
&& GetCapture() == hwnd
)
812 SCROLL_DrawArrows( hdc
, infoPtr
, &rect
, arrowSize
, vertical
,
813 (SCROLL_trackHitTest
== SCROLL_TOP_ARROW
),
814 (SCROLL_trackHitTest
== SCROLL_BOTTOM_ARROW
) );
816 SCROLL_DrawArrows( hdc
, infoPtr
, &rect
, arrowSize
, vertical
,
820 SCROLL_DrawInterior( hwnd
, hdc
, nBar
, &rect
, arrowSize
, thumbSize
,
821 thumbPos
, infoPtr
->flags
, vertical
, FALSE
, FALSE
);
823 if (Save_SCROLL_MovingThumb
&&
824 (SCROLL_TrackingWin
== hwnd
) &&
825 (SCROLL_TrackingBar
== nBar
))
826 SCROLL_DrawMovingThumb( hdc
, &rect
, vertical
, arrowSize
, thumbSize
);
828 /* if scroll bar has focus, reposition the caret */
829 if(hwnd
==GetFocus() && (nBar
==SB_CTL
))
833 SetCaretPos(thumbPos
+1, rect
.top
+1);
837 SetCaretPos(rect
.top
+1, thumbPos
+1);
842 WIN_ReleaseWndPtr(wndPtr
);
846 /***********************************************************************
847 * SCROLL_RefreshScrollBar
849 * Repaint the scroll bar interior after a SetScrollRange() or
850 * SetScrollPos() call.
852 static void SCROLL_RefreshScrollBar( HWND hwnd
, INT nBar
,
853 BOOL arrows
, BOOL interior
)
855 HDC hdc
= GetDCEx( hwnd
, 0,
856 DCX_CACHE
| ((nBar
== SB_CTL
) ? 0 : DCX_WINDOW
) );
859 SCROLL_DrawScrollBar( hwnd
, hdc
, nBar
, arrows
, interior
);
860 ReleaseDC( hwnd
, hdc
);
864 /***********************************************************************
865 * SCROLL_HandleKbdEvent
867 * Handle a keyboard event (only for SB_CTL scrollbars).
869 static void SCROLL_HandleKbdEvent( HWND hwnd
, WPARAM wParam
)
875 case VK_PRIOR
: msg
= SB_PAGEUP
; break;
876 case VK_NEXT
: msg
= SB_PAGEDOWN
; break;
877 case VK_HOME
: msg
= SB_TOP
; break;
878 case VK_END
: msg
= SB_BOTTOM
; break;
879 case VK_UP
: msg
= SB_LINEUP
; break;
880 case VK_DOWN
: msg
= SB_LINEDOWN
; break;
883 SendMessageW( GetParent(hwnd
),
884 (GetWindowLongA( hwnd
, GWL_STYLE
) & SBS_VERT
) ? WM_VSCROLL
: WM_HSCROLL
,
889 /***********************************************************************
890 * SCROLL_HandleScrollEvent
892 * Handle a mouse or timer event for the scrollbar.
893 * 'pt' is the location of the mouse event in client (for SB_CTL) or
894 * windows coordinates.
896 void SCROLL_HandleScrollEvent( HWND hwnd
, INT nBar
, UINT msg
, POINT pt
)
898 /* Previous mouse position for timer events */
900 /* Thumb position when tracking started. */
901 static UINT trackThumbPos
;
902 /* Position in the scroll-bar of the last button-down event. */
903 static INT lastClickPos
;
904 /* Position in the scroll-bar of the last mouse event. */
905 static INT lastMousePos
;
907 enum SCROLL_HITTEST hittest
;
908 HWND hwndOwner
, hwndCtl
;
910 INT arrowSize
, thumbSize
, thumbPos
;
914 SCROLLBAR_INFO
*infoPtr
= SCROLL_GetScrollInfo( hwnd
, nBar
);
915 if (!infoPtr
) return;
916 if ((SCROLL_trackHitTest
== SCROLL_NOWHERE
) && (msg
!= WM_LBUTTONDOWN
))
919 hdc
= GetDCEx( hwnd
, 0, DCX_CACHE
| ((nBar
== SB_CTL
) ? 0 : DCX_WINDOW
));
920 vertical
= SCROLL_GetScrollBarRect( hwnd
, nBar
, &rect
,
921 &arrowSize
, &thumbSize
, &thumbPos
);
922 hwndOwner
= (nBar
== SB_CTL
) ? GetParent(hwnd
) : hwnd
;
923 hwndCtl
= (nBar
== SB_CTL
) ? hwnd
: 0;
927 case WM_LBUTTONDOWN
: /* Initialise mouse tracking */
928 HideCaret(hwnd
); /* hide caret while holding down LBUTTON */
929 SCROLL_trackVertical
= vertical
;
930 SCROLL_trackHitTest
= hittest
= SCROLL_HitTest( hwnd
, nBar
, pt
, FALSE
);
931 lastClickPos
= vertical
? (pt
.y
- rect
.top
) : (pt
.x
- rect
.left
);
932 lastMousePos
= lastClickPos
;
933 trackThumbPos
= thumbPos
;
936 if (nBar
== SB_CTL
&& (GetWindowLongA(hwnd
, GWL_STYLE
) & WS_TABSTOP
)) SetFocus( hwnd
);
940 hittest
= SCROLL_HitTest( hwnd
, nBar
, pt
, TRUE
);
945 hittest
= SCROLL_NOWHERE
;
947 /* if scrollbar has focus, show back caret */
948 if (hwnd
==GetFocus()) ShowCaret(hwnd
);
953 hittest
= SCROLL_HitTest( hwnd
, nBar
, pt
, FALSE
);
957 return; /* Should never happen */
960 TRACE("Event: hwnd=%04x bar=%d msg=%x pt=%ld,%ld hit=%d\n",
961 hwnd
, nBar
, msg
, pt
.x
, pt
.y
, hittest
);
963 switch(SCROLL_trackHitTest
)
965 case SCROLL_NOWHERE
: /* No tracking in progress */
968 case SCROLL_TOP_ARROW
:
969 SCROLL_DrawArrows( hdc
, infoPtr
, &rect
, arrowSize
, vertical
,
970 (hittest
== SCROLL_trackHitTest
), FALSE
);
971 if (hittest
== SCROLL_trackHitTest
)
973 if ((msg
== WM_LBUTTONDOWN
) || (msg
== WM_SYSTIMER
))
975 SendMessageA( hwndOwner
, vertical
? WM_VSCROLL
: WM_HSCROLL
,
976 SB_LINEUP
, hwndCtl
);
979 SetSystemTimer( hwnd
, SCROLL_TIMER
, (msg
== WM_LBUTTONDOWN
) ?
980 SCROLL_FIRST_DELAY
: SCROLL_REPEAT_DELAY
,
983 else KillSystemTimer( hwnd
, SCROLL_TIMER
);
986 case SCROLL_TOP_RECT
:
987 SCROLL_DrawInterior( hwnd
, hdc
, nBar
, &rect
, arrowSize
, thumbSize
,
988 thumbPos
, infoPtr
->flags
, vertical
,
989 (hittest
== SCROLL_trackHitTest
), FALSE
);
990 if (hittest
== SCROLL_trackHitTest
)
992 if ((msg
== WM_LBUTTONDOWN
) || (msg
== WM_SYSTIMER
))
994 SendMessageA( hwndOwner
, vertical
? WM_VSCROLL
: WM_HSCROLL
,
995 SB_PAGEUP
, hwndCtl
);
996 SetSystemTimer( hwnd
, SCROLL_TIMER
, (msg
== WM_LBUTTONDOWN
) ?
997 SCROLL_FIRST_DELAY
: SCROLL_REPEAT_DELAY
,
1001 else KillSystemTimer( hwnd
, SCROLL_TIMER
);
1005 if (msg
== WM_LBUTTONDOWN
)
1007 SCROLL_TrackingWin
= hwnd
;
1008 SCROLL_TrackingBar
= nBar
;
1009 SCROLL_TrackingPos
= trackThumbPos
+ lastMousePos
- lastClickPos
;
1010 if (!SCROLL_MovingThumb
)
1011 SCROLL_DrawMovingThumb(hdc
, &rect
, vertical
, arrowSize
, thumbSize
);
1013 else if (msg
== WM_LBUTTONUP
)
1015 if (SCROLL_MovingThumb
)
1016 SCROLL_DrawMovingThumb(hdc
, &rect
, vertical
, arrowSize
, thumbSize
);
1017 SCROLL_TrackingWin
= 0;
1018 SCROLL_DrawInterior( hwnd
, hdc
, nBar
, &rect
, arrowSize
, thumbSize
,
1019 thumbPos
, infoPtr
->flags
, vertical
,
1022 else /* WM_MOUSEMOVE */
1026 if (!SCROLL_PtInRectEx( &rect
, pt
, vertical
)) pos
= lastClickPos
;
1029 pt
= SCROLL_ClipPos( &rect
, pt
);
1030 pos
= vertical
? (pt
.y
- rect
.top
) : (pt
.x
- rect
.left
);
1032 if ( (pos
!= lastMousePos
) || (!SCROLL_MovingThumb
) )
1034 if (SCROLL_MovingThumb
)
1035 SCROLL_DrawMovingThumb( hdc
, &rect
, vertical
,
1036 arrowSize
, thumbSize
);
1038 SCROLL_TrackingPos
= trackThumbPos
+ pos
- lastClickPos
;
1039 SCROLL_TrackingVal
= SCROLL_GetThumbVal( infoPtr
, &rect
,
1041 SCROLL_TrackingPos
);
1042 SendMessageA( hwndOwner
, vertical
? WM_VSCROLL
: WM_HSCROLL
,
1043 MAKEWPARAM( SB_THUMBTRACK
, SCROLL_TrackingVal
),
1045 if (!SCROLL_MovingThumb
)
1046 SCROLL_DrawMovingThumb( hdc
, &rect
, vertical
,
1047 arrowSize
, thumbSize
);
1052 case SCROLL_BOTTOM_RECT
:
1053 SCROLL_DrawInterior( hwnd
, hdc
, nBar
, &rect
, arrowSize
, thumbSize
,
1054 thumbPos
, infoPtr
->flags
, vertical
,
1055 FALSE
, (hittest
== SCROLL_trackHitTest
) );
1056 if (hittest
== SCROLL_trackHitTest
)
1058 if ((msg
== WM_LBUTTONDOWN
) || (msg
== WM_SYSTIMER
))
1060 SendMessageA( hwndOwner
, vertical
? WM_VSCROLL
: WM_HSCROLL
,
1061 SB_PAGEDOWN
, hwndCtl
);
1062 SetSystemTimer( hwnd
, SCROLL_TIMER
, (msg
== WM_LBUTTONDOWN
) ?
1063 SCROLL_FIRST_DELAY
: SCROLL_REPEAT_DELAY
,
1067 else KillSystemTimer( hwnd
, SCROLL_TIMER
);
1070 case SCROLL_BOTTOM_ARROW
:
1071 SCROLL_DrawArrows( hdc
, infoPtr
, &rect
, arrowSize
, vertical
,
1072 FALSE
, (hittest
== SCROLL_trackHitTest
) );
1073 if (hittest
== SCROLL_trackHitTest
)
1075 if ((msg
== WM_LBUTTONDOWN
) || (msg
== WM_SYSTIMER
))
1077 SendMessageA( hwndOwner
, vertical
? WM_VSCROLL
: WM_HSCROLL
,
1078 SB_LINEDOWN
, hwndCtl
);
1081 SetSystemTimer( hwnd
, SCROLL_TIMER
, (msg
== WM_LBUTTONDOWN
) ?
1082 SCROLL_FIRST_DELAY
: SCROLL_REPEAT_DELAY
,
1085 else KillSystemTimer( hwnd
, SCROLL_TIMER
);
1089 if (msg
== WM_LBUTTONUP
)
1091 hittest
= SCROLL_trackHitTest
;
1092 SCROLL_trackHitTest
= SCROLL_NOWHERE
; /* Terminate tracking */
1094 if (hittest
== SCROLL_THUMB
)
1096 UINT val
= SCROLL_GetThumbVal( infoPtr
, &rect
, vertical
,
1097 trackThumbPos
+ lastMousePos
- lastClickPos
);
1098 SendMessageA( hwndOwner
, vertical
? WM_VSCROLL
: WM_HSCROLL
,
1099 MAKEWPARAM( SB_THUMBPOSITION
, val
), hwndCtl
);
1102 SendMessageA( hwndOwner
, vertical
? WM_VSCROLL
: WM_HSCROLL
,
1103 SB_ENDSCROLL
, hwndCtl
);
1106 ReleaseDC( hwnd
, hdc
);
1110 /***********************************************************************
1113 static LRESULT WINAPI
ScrollBarWndProc( HWND hwnd
, UINT message
, WPARAM wParam
, LPARAM lParam
)
1115 if (!IsWindow( hwnd
)) return 0;
1121 CREATESTRUCTW
*lpCreat
= (CREATESTRUCTW
*)lParam
;
1122 if (lpCreat
->style
& SBS_SIZEBOX
)
1124 FIXME("Unimplemented style SBS_SIZEBOX.\n" );
1127 if (lpCreat
->style
& SBS_VERT
)
1129 if (lpCreat
->style
& SBS_LEFTALIGN
)
1130 MoveWindow( hwnd
, lpCreat
->x
, lpCreat
->y
,
1131 GetSystemMetrics(SM_CXVSCROLL
)+1, lpCreat
->cy
, FALSE
);
1132 else if (lpCreat
->style
& SBS_RIGHTALIGN
)
1134 lpCreat
->x
+lpCreat
->cx
-GetSystemMetrics(SM_CXVSCROLL
)-1,
1136 GetSystemMetrics(SM_CXVSCROLL
)+1, lpCreat
->cy
, FALSE
);
1140 if (lpCreat
->style
& SBS_TOPALIGN
)
1141 MoveWindow( hwnd
, lpCreat
->x
, lpCreat
->y
,
1142 lpCreat
->cx
, GetSystemMetrics(SM_CYHSCROLL
)+1, FALSE
);
1143 else if (lpCreat
->style
& SBS_BOTTOMALIGN
)
1146 lpCreat
->y
+lpCreat
->cy
-GetSystemMetrics(SM_CYHSCROLL
)-1,
1147 lpCreat
->cx
, GetSystemMetrics(SM_CYHSCROLL
)+1, FALSE
);
1150 if (!hUpArrow
) SCROLL_LoadBitmaps();
1151 TRACE("ScrollBar creation, hwnd=%04x\n", hwnd
);
1154 case WM_LBUTTONDOWN
:
1160 pt
.x
= SLOWORD(lParam
);
1161 pt
.y
= SHIWORD(lParam
);
1162 SCROLL_HandleScrollEvent( hwnd
, SB_CTL
, message
, pt
);
1166 /* if key event is received, the scrollbar has the focus */
1168 /* hide caret on first KEYDOWN to prevent flicker */
1169 if ((lParam
& 0x40000000)==0)
1171 SCROLL_HandleKbdEvent( hwnd
, wParam
);
1180 /* Create a caret when a ScrollBar get focus */
1182 int arrowSize
, thumbSize
, thumbPos
, vertical
;
1183 vertical
= SCROLL_GetScrollBarRect( hwnd
, SB_CTL
, &rect
,
1184 &arrowSize
, &thumbSize
, &thumbPos
);
1187 CreateCaret(hwnd
,1, thumbSize
-2, rect
.bottom
-rect
.top
-2);
1188 SetCaretPos(thumbPos
+1, rect
.top
+1);
1192 CreateCaret(hwnd
,1, rect
.right
-rect
.left
-2,thumbSize
-2);
1193 SetCaretPos(rect
.top
+1, thumbPos
+1);
1202 int arrowSize
, thumbSize
, thumbPos
, vertical
;
1203 vertical
= SCROLL_GetScrollBarRect( hwnd
, SB_CTL
, &rect
,&arrowSize
, &thumbSize
, &thumbPos
);
1205 rect
.left
=thumbPos
+1;
1206 rect
.right
=rect
.left
+thumbSize
;
1210 rect
.top
=thumbPos
+1;
1211 rect
.bottom
=rect
.top
+thumbSize
;
1214 InvalidateRect(hwnd
,&rect
,0);
1223 return DLGC_WANTARROWS
; /* Windows returns this value */
1228 HDC hdc
= BeginPaint( hwnd
, &ps
);
1229 SCROLL_DrawScrollBar( hwnd
, hdc
, SB_CTL
, TRUE
, TRUE
);
1230 EndPaint( hwnd
, &ps
);
1236 return SetScrollPos( hwnd
, SB_CTL
, wParam
, (BOOL
)lParam
);
1240 return GetScrollPos( hwnd
, SB_CTL
);
1242 case SBM_SETRANGE16
:
1243 SetScrollRange( hwnd
, SB_CTL
, LOWORD(lParam
), HIWORD(lParam
),
1244 wParam
/* FIXME: Is this correct? */ );
1249 INT oldPos
= GetScrollPos( hwnd
, SB_CTL
);
1250 SetScrollRange( hwnd
, SB_CTL
, wParam
, lParam
, FALSE
);
1251 if (oldPos
!= GetScrollPos( hwnd
, SB_CTL
)) return oldPos
;
1255 case SBM_GETRANGE16
:
1256 FIXME("don't know how to handle SBM_GETRANGE16 (wp=%04x,lp=%08lx)\n", wParam
, lParam
);
1260 GetScrollRange( hwnd
, SB_CTL
, (LPINT
)wParam
, (LPINT
)lParam
);
1263 case SBM_ENABLE_ARROWS16
:
1264 case SBM_ENABLE_ARROWS
:
1265 return EnableScrollBar( hwnd
, SB_CTL
, wParam
);
1267 case SBM_SETRANGEREDRAW
:
1269 INT oldPos
= GetScrollPos( hwnd
, SB_CTL
);
1270 SetScrollRange( hwnd
, SB_CTL
, wParam
, lParam
, TRUE
);
1271 if (oldPos
!= GetScrollPos( hwnd
, SB_CTL
)) return oldPos
;
1275 case SBM_SETSCROLLINFO
:
1276 return SetScrollInfo( hwnd
, SB_CTL
, (SCROLLINFO
*)lParam
, wParam
);
1278 case SBM_GETSCROLLINFO
:
1279 return GetScrollInfo( hwnd
, SB_CTL
, (SCROLLINFO
*)lParam
);
1289 ERR("unknown Win32 msg %04x wp=%08x lp=%08lx\n",
1290 message
, wParam
, lParam
);
1294 if (message
>= WM_USER
)
1295 WARN("unknown msg %04x wp=%04x lp=%08lx\n",
1296 message
, wParam
, lParam
);
1297 return DefWindowProcW( hwnd
, message
, wParam
, lParam
);
1303 /*************************************************************************
1304 * SetScrollInfo (USER.475)
1306 INT16 WINAPI
SetScrollInfo16( HWND16 hwnd
, INT16 nBar
, const SCROLLINFO
*info
,
1309 return (INT16
)SetScrollInfo( hwnd
, nBar
, info
, bRedraw
);
1313 /*************************************************************************
1314 * SetScrollInfo (USER32.@)
1315 * SetScrollInfo can be used to set the position, upper bound,
1316 * lower bound, and page size of a scrollbar control.
1319 * Scrollbar position
1322 * For 100 lines of text to be displayed in a window of 25 lines,
1323 * one would for instance use info->nMin=0, info->nMax=75
1324 * (corresponding to the 76 different positions of the window on
1325 * the text), and info->nPage=25.
1327 INT WINAPI
SetScrollInfo(
1328 HWND hwnd
/* [in] Handle of window whose scrollbar will be affected */,
1329 INT nBar
/* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
1330 const SCROLLINFO
*info
/* [in] Specifies what to change and new values */,
1331 BOOL bRedraw
/* [in] Should scrollbar be redrawn afterwards ? */)
1334 INT retVal
= SCROLL_SetScrollInfo( hwnd
, nBar
, info
, &action
);
1336 if( action
& SA_SSI_HIDE
)
1337 SCROLL_ShowScrollBar( hwnd
, nBar
, FALSE
, FALSE
);
1340 if( action
& SA_SSI_SHOW
)
1341 if( SCROLL_ShowScrollBar( hwnd
, nBar
, TRUE
, TRUE
) )
1342 return retVal
; /* SetWindowPos() already did the painting */
1344 if( bRedraw
&& (action
& SA_SSI_REFRESH
))
1345 SCROLL_RefreshScrollBar( hwnd
, nBar
, TRUE
, TRUE
);
1346 else if( action
& SA_SSI_REPAINT_ARROWS
)
1347 SCROLL_RefreshScrollBar( hwnd
, nBar
, TRUE
, FALSE
);
1352 INT
SCROLL_SetScrollInfo( HWND hwnd
, INT nBar
,
1353 const SCROLLINFO
*info
, INT
*action
)
1355 /* Update the scrollbar state and set action flags according to
1356 * what has to be done graphics wise. */
1358 SCROLLBAR_INFO
*infoPtr
;
1360 BOOL bChangeParams
= FALSE
; /* don't show/hide scrollbar if params don't change */
1364 if (!(infoPtr
= SCROLL_GetScrollInfo(hwnd
, nBar
))) return 0;
1365 if (info
->fMask
& ~(SIF_ALL
| SIF_DISABLENOSCROLL
)) return 0;
1366 if ((info
->cbSize
!= sizeof(*info
)) &&
1367 (info
->cbSize
!= sizeof(*info
)-sizeof(info
->nTrackPos
))) return 0;
1369 if (TRACE_ON(scroll
))
1371 TRACE("hwnd=%04x bar=%d", hwnd
, nBar
);
1372 if (info
->fMask
& SIF_PAGE
) DPRINTF( " page=%d", info
->nPage
);
1373 if (info
->fMask
& SIF_POS
) DPRINTF( " pos=%d", info
->nPos
);
1374 if (info
->fMask
& SIF_RANGE
) DPRINTF( " min=%d max=%d", info
->nMin
, info
->nMax
);
1378 /* Set the page size */
1380 if (info
->fMask
& SIF_PAGE
)
1382 if( infoPtr
->Page
!= info
->nPage
)
1384 infoPtr
->Page
= info
->nPage
;
1385 *action
|= SA_SSI_REFRESH
;
1386 bChangeParams
= TRUE
;
1390 /* Set the scroll pos */
1392 if (info
->fMask
& SIF_POS
)
1394 if( infoPtr
->CurVal
!= info
->nPos
)
1396 infoPtr
->CurVal
= info
->nPos
;
1397 *action
|= SA_SSI_REFRESH
;
1401 /* Set the scroll range */
1403 if (info
->fMask
& SIF_RANGE
)
1405 /* Invalid range -> range is set to (0,0) */
1406 if ((info
->nMin
> info
->nMax
) ||
1407 ((UINT
)(info
->nMax
- info
->nMin
) >= 0x80000000))
1409 infoPtr
->MinVal
= 0;
1410 infoPtr
->MaxVal
= 0;
1411 bChangeParams
= TRUE
;
1415 if( infoPtr
->MinVal
!= info
->nMin
||
1416 infoPtr
->MaxVal
!= info
->nMax
)
1418 *action
|= SA_SSI_REFRESH
;
1419 infoPtr
->MinVal
= info
->nMin
;
1420 infoPtr
->MaxVal
= info
->nMax
;
1421 bChangeParams
= TRUE
;
1426 /* Make sure the page size is valid */
1428 if (infoPtr
->Page
< 0) infoPtr
->Page
= 0;
1429 else if (infoPtr
->Page
> infoPtr
->MaxVal
- infoPtr
->MinVal
+ 1 )
1430 infoPtr
->Page
= infoPtr
->MaxVal
- infoPtr
->MinVal
+ 1;
1432 /* Make sure the pos is inside the range */
1434 if (infoPtr
->CurVal
< infoPtr
->MinVal
)
1435 infoPtr
->CurVal
= infoPtr
->MinVal
;
1436 else if (infoPtr
->CurVal
> infoPtr
->MaxVal
- max( infoPtr
->Page
-1, 0 ))
1437 infoPtr
->CurVal
= infoPtr
->MaxVal
- max( infoPtr
->Page
-1, 0 );
1439 TRACE(" new values: page=%d pos=%d min=%d max=%d\n",
1440 infoPtr
->Page
, infoPtr
->CurVal
,
1441 infoPtr
->MinVal
, infoPtr
->MaxVal
);
1443 /* don't change the scrollbar state if SetScrollInfo
1444 * is just called with SIF_DISABLENOSCROLL
1446 if(!(info
->fMask
& SIF_ALL
)) goto done
;
1448 /* Check if the scrollbar should be hidden or disabled */
1450 if (info
->fMask
& (SIF_RANGE
| SIF_PAGE
| SIF_DISABLENOSCROLL
))
1452 new_flags
= infoPtr
->flags
;
1453 if (infoPtr
->MinVal
>= infoPtr
->MaxVal
- max( infoPtr
->Page
-1, 0 ))
1455 /* Hide or disable scroll-bar */
1456 if (info
->fMask
& SIF_DISABLENOSCROLL
)
1458 new_flags
= ESB_DISABLE_BOTH
;
1459 *action
|= SA_SSI_REFRESH
;
1461 else if ((nBar
!= SB_CTL
) && bChangeParams
)
1463 *action
= SA_SSI_HIDE
;
1467 else /* Show and enable scroll-bar */
1470 if ((nBar
!= SB_CTL
) && bChangeParams
)
1471 *action
|= SA_SSI_SHOW
;
1474 if (infoPtr
->flags
!= new_flags
) /* check arrow flags */
1476 infoPtr
->flags
= new_flags
;
1477 *action
|= SA_SSI_REPAINT_ARROWS
;
1482 /* Return current position */
1484 return infoPtr
->CurVal
;
1488 /*************************************************************************
1489 * GetScrollInfo (USER.476)
1491 BOOL16 WINAPI
GetScrollInfo16( HWND16 hwnd
, INT16 nBar
, LPSCROLLINFO info
)
1493 return GetScrollInfo( hwnd
, nBar
, info
);
1497 /*************************************************************************
1498 * GetScrollInfo (USER32.@)
1499 * GetScrollInfo can be used to retrieve the position, upper bound,
1500 * lower bound, and page size of a scrollbar control.
1504 BOOL WINAPI
GetScrollInfo(
1505 HWND hwnd
/* [in] Handle of window */ ,
1506 INT nBar
/* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
1507 LPSCROLLINFO info
/* [in/out] (info.fMask [in] specifies which values are to retrieve) */)
1509 SCROLLBAR_INFO
*infoPtr
;
1511 if (!(infoPtr
= SCROLL_GetScrollInfo( hwnd
, nBar
))) return FALSE
;
1512 if (info
->fMask
& ~(SIF_ALL
| SIF_DISABLENOSCROLL
)) return FALSE
;
1513 if ((info
->cbSize
!= sizeof(*info
)) &&
1514 (info
->cbSize
!= sizeof(*info
)-sizeof(info
->nTrackPos
))) return FALSE
;
1516 if (info
->fMask
& SIF_PAGE
) info
->nPage
= infoPtr
->Page
;
1517 if (info
->fMask
& SIF_POS
) info
->nPos
= infoPtr
->CurVal
;
1518 if ((info
->fMask
& SIF_TRACKPOS
) && (info
->cbSize
== sizeof(*info
)))
1519 info
->nTrackPos
= (SCROLL_TrackingWin
==hwnd
) ? SCROLL_TrackingVal
: infoPtr
->CurVal
;
1520 if (info
->fMask
& SIF_RANGE
)
1522 info
->nMin
= infoPtr
->MinVal
;
1523 info
->nMax
= infoPtr
->MaxVal
;
1525 return (info
->fMask
& SIF_ALL
) != 0;
1529 /*************************************************************************
1530 * SetScrollPos (USER.62)
1532 INT16 WINAPI
SetScrollPos16( HWND16 hwnd
, INT16 nBar
, INT16 nPos
,
1535 return (INT16
)SetScrollPos( hwnd
, nBar
, nPos
, bRedraw
);
1539 /*************************************************************************
1540 * SetScrollPos (USER32.@)
1543 * Success: Scrollbar position
1547 * Note the ambiguity when 0 is returned. Use GetLastError
1548 * to make sure there was an error (and to know which one).
1550 INT WINAPI
SetScrollPos(
1551 HWND hwnd
/* [in] Handle of window whose scrollbar will be affected */,
1552 INT nBar
/* [in] One of SB_HORZ, SB_VERT, or SB_CTL */,
1553 INT nPos
/* [in] New value */,
1554 BOOL bRedraw
/* [in] Should scrollbar be redrawn afterwards ? */ )
1557 SCROLLBAR_INFO
*infoPtr
;
1560 if (!(infoPtr
= SCROLL_GetScrollInfo( hwnd
, nBar
))) return 0;
1561 oldPos
= infoPtr
->CurVal
;
1562 info
.cbSize
= sizeof(info
);
1564 info
.fMask
= SIF_POS
;
1565 SetScrollInfo( hwnd
, nBar
, &info
, bRedraw
);
1570 /*************************************************************************
1571 * GetScrollPos (USER.63)
1573 INT16 WINAPI
GetScrollPos16( HWND16 hwnd
, INT16 nBar
)
1575 return (INT16
)GetScrollPos( hwnd
, nBar
);
1579 /*************************************************************************
1580 * GetScrollPos (USER32.@)
1583 * Success: Current position
1587 * Note the ambiguity when 0 is returned. Use GetLastError
1588 * to make sure there was an error (and to know which one).
1590 INT WINAPI
GetScrollPos(
1591 HWND hwnd
, /* [in] Handle of window */
1592 INT nBar
/* [in] One of SB_HORZ, SB_VERT, or SB_CTL */)
1594 SCROLLBAR_INFO
*infoPtr
;
1596 if (!(infoPtr
= SCROLL_GetScrollInfo( hwnd
, nBar
))) return 0;
1597 return infoPtr
->CurVal
;
1601 /*************************************************************************
1602 * SetScrollRange (USER.64)
1604 void WINAPI
SetScrollRange16( HWND16 hwnd
, INT16 nBar
,
1605 INT16 MinVal
, INT16 MaxVal
, BOOL16 bRedraw
)
1607 /* Invalid range -> range is set to (0,0) */
1608 if ((INT
)MaxVal
- (INT
)MinVal
> 0x7fff) MinVal
= MaxVal
= 0;
1609 SetScrollRange( hwnd
, nBar
, MinVal
, MaxVal
, bRedraw
);
1613 /*************************************************************************
1614 * SetScrollRange (USER32.@)
1618 BOOL WINAPI
SetScrollRange(
1619 HWND hwnd
, /* [in] Handle of window whose scrollbar will be affected */
1620 INT nBar
, /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */
1621 INT MinVal
, /* [in] New minimum value */
1622 INT MaxVal
, /* [in] New maximum value */
1623 BOOL bRedraw
/* [in] Should scrollbar be redrawn afterwards ? */)
1627 info
.cbSize
= sizeof(info
);
1630 info
.fMask
= SIF_RANGE
;
1631 SetScrollInfo( hwnd
, nBar
, &info
, bRedraw
);
1636 /*************************************************************************
1637 * SCROLL_SetNCSbState
1639 * Updates both scrollbars at the same time. Used by MDI CalcChildScroll().
1641 INT
SCROLL_SetNCSbState(HWND hwnd
, int vMin
, int vMax
, int vPos
,
1642 int hMin
, int hMax
, int hPos
)
1645 SCROLLINFO vInfo
, hInfo
;
1647 vInfo
.cbSize
= hInfo
.cbSize
= sizeof(SCROLLINFO
);
1654 vInfo
.fMask
= hInfo
.fMask
= SIF_RANGE
| SIF_POS
;
1656 SCROLL_SetScrollInfo( hwnd
, SB_VERT
, &vInfo
, &vA
);
1657 SCROLL_SetScrollInfo( hwnd
, SB_HORZ
, &hInfo
, &hA
);
1659 if( !SCROLL_ShowScrollBar( hwnd
, SB_BOTH
,
1660 (hA
& SA_SSI_SHOW
),(vA
& SA_SSI_SHOW
) ) )
1662 /* SetWindowPos() wasn't called, just redraw the scrollbars if needed */
1663 if( vA
& SA_SSI_REFRESH
)
1664 SCROLL_RefreshScrollBar( hwnd
, SB_VERT
, FALSE
, TRUE
);
1666 if( hA
& SA_SSI_REFRESH
)
1667 SCROLL_RefreshScrollBar( hwnd
, SB_HORZ
, FALSE
, TRUE
);
1673 /*************************************************************************
1674 * GetScrollRange (USER.65)
1676 BOOL16 WINAPI
GetScrollRange16( HWND16 hwnd
, INT16 nBar
,
1677 LPINT16 lpMin
, LPINT16 lpMax
)
1680 BOOL16 ret
= GetScrollRange( hwnd
, nBar
, &min
, &max
);
1681 if (lpMin
) *lpMin
= min
;
1682 if (lpMax
) *lpMax
= max
;
1687 /*************************************************************************
1688 * GetScrollRange (USER32.@)
1692 BOOL WINAPI
GetScrollRange(
1693 HWND hwnd
, /* [in] Handle of window */
1694 INT nBar
, /* [in] One of SB_HORZ, SB_VERT, or SB_CTL */
1695 LPINT lpMin
, /* [out] Where to store minimum value */
1696 LPINT lpMax
/* [out] Where to store maximum value */)
1698 SCROLLBAR_INFO
*infoPtr
;
1700 if (!(infoPtr
= SCROLL_GetScrollInfo( hwnd
, nBar
)))
1702 if (lpMin
) lpMin
= 0;
1703 if (lpMax
) lpMax
= 0;
1706 if (lpMin
) *lpMin
= infoPtr
->MinVal
;
1707 if (lpMax
) *lpMax
= infoPtr
->MaxVal
;
1712 /*************************************************************************
1713 * SCROLL_ShowScrollBar()
1715 * Back-end for ShowScrollBar(). Returns FALSE if no action was taken.
1717 BOOL
SCROLL_ShowScrollBar( HWND hwnd
, INT nBar
,
1718 BOOL fShowH
, BOOL fShowV
)
1720 WND
*wndPtr
= WIN_FindWndPtr( hwnd
);
1721 BOOL retvalue
= FALSE
;
1723 if (!wndPtr
) return FALSE
;
1724 TRACE("hwnd=%04x bar=%d horz=%d, vert=%d\n",
1725 hwnd
, nBar
, fShowH
, fShowV
);
1730 ShowWindow( hwnd
, fShowH
? SW_SHOW
: SW_HIDE
);
1738 fShowH
= !(wndPtr
->dwStyle
& WS_HSCROLL
);
1739 wndPtr
->dwStyle
|= WS_HSCROLL
;
1743 fShowH
= (wndPtr
->dwStyle
& WS_HSCROLL
);
1744 wndPtr
->dwStyle
&= ~WS_HSCROLL
;
1746 if( nBar
== SB_HORZ
) {
1755 fShowV
= !(wndPtr
->dwStyle
& WS_VSCROLL
);
1756 wndPtr
->dwStyle
|= WS_VSCROLL
;
1760 fShowV
= (wndPtr
->dwStyle
& WS_VSCROLL
);
1761 wndPtr
->dwStyle
&= ~WS_VSCROLL
;
1763 if ( nBar
== SB_VERT
)
1768 retvalue
= FALSE
; /* Nothing to do! */
1772 if( fShowH
|| fShowV
) /* frame has been changed, let the window redraw itself */
1774 SetWindowPos( hwnd
, 0, 0, 0, 0, 0, SWP_NOSIZE
| SWP_NOMOVE
1775 | SWP_NOACTIVATE
| SWP_NOZORDER
| SWP_FRAMECHANGED
);
1780 retvalue
= FALSE
; /* no frame changes */
1782 WIN_ReleaseWndPtr(wndPtr
);
1787 /*************************************************************************
1788 * ShowScrollBar (USER.267)
1790 void WINAPI
ShowScrollBar16( HWND16 hwnd
, INT16 nBar
, BOOL16 fShow
)
1792 SCROLL_ShowScrollBar( hwnd
, nBar
, (nBar
== SB_VERT
) ? 0 : fShow
,
1793 (nBar
== SB_HORZ
) ? 0 : fShow
);
1797 /*************************************************************************
1798 * ShowScrollBar (USER32.@)
1802 BOOL WINAPI
ShowScrollBar(
1803 HWND hwnd
, /* [in] Handle of window whose scrollbar(s) will be affected */
1804 INT nBar
, /* [in] One of SB_HORZ, SB_VERT, SB_BOTH or SB_CTL */
1805 BOOL fShow
/* [in] TRUE = show, FALSE = hide */)
1807 SCROLL_ShowScrollBar( hwnd
, nBar
, (nBar
== SB_VERT
) ? 0 : fShow
,
1808 (nBar
== SB_HORZ
) ? 0 : fShow
);
1813 /*************************************************************************
1814 * EnableScrollBar (USER.482)
1816 BOOL16 WINAPI
EnableScrollBar16( HWND16 hwnd
, INT16 nBar
, UINT16 flags
)
1818 return EnableScrollBar( hwnd
, nBar
, flags
);
1822 /*************************************************************************
1823 * EnableScrollBar (USER32.@)
1825 BOOL WINAPI
EnableScrollBar( HWND hwnd
, INT nBar
, UINT flags
)
1828 SCROLLBAR_INFO
*infoPtr
;
1830 TRACE("%04x %d %d\n", hwnd
, nBar
, flags
);
1832 flags
&= ESB_DISABLE_BOTH
;
1834 if (nBar
== SB_BOTH
)
1836 if (!(infoPtr
= SCROLL_GetScrollInfo( hwnd
, SB_VERT
))) return FALSE
;
1837 if (!(bFineWithMe
= (infoPtr
->flags
== flags
)) )
1839 infoPtr
->flags
= flags
;
1840 SCROLL_RefreshScrollBar( hwnd
, SB_VERT
, TRUE
, TRUE
);
1847 if (!(infoPtr
= SCROLL_GetScrollInfo( hwnd
, nBar
))) return FALSE
;
1848 if (bFineWithMe
&& infoPtr
->flags
== flags
) return FALSE
;
1849 infoPtr
->flags
= flags
;
1851 SCROLL_RefreshScrollBar( hwnd
, nBar
, TRUE
, TRUE
);