2 * Window painting functions
4 * Copyright 1993, 1994, 1995 Alexandre Julliard
6 * FIXME: Do not repaint full nonclient area all the time. Instead, compute
7 * intersection with hrgnUpdate (which should be moved from client to
8 * window coords as well, lookup 'the pain' comment in the winpos.c).
20 /* #define DEBUG_WIN */
23 /* Last CTLCOLOR id */
24 #define CTLCOLOR_MAX CTLCOLOR_STATIC
26 /***********************************************************************
30 void WIN_UpdateNCArea(WND* wnd, BOOL32 bUpdate)
35 dprintf_nonclient(stddeb,"NCUpdate: hwnd %04x, hrgnUpdate %04x\n",
36 wnd->hwndSelf, wnd->hrgnUpdate );
38 /* desktop window doesn't have nonclient area */
39 if(wnd == WIN_GetDesktop())
41 wnd->flags &= ~WIN_NEEDS_NCPAINT;
45 if( wnd->hrgnUpdate > 1 )
47 ClientToScreen16(wnd->hwndSelf, &pt);
49 hClip = CreateRectRgn32( 0, 0, 0, 0 );
50 if (!CombineRgn32( hClip, wnd->hrgnUpdate, 0, RGN_COPY ))
52 DeleteObject32(hClip);
56 OffsetRgn32( hClip, pt.x, pt.y );
60 /* exclude non-client area from update region */
61 HRGN32 hrgn = CreateRectRgn32( 0, 0,
62 wnd->rectClient.right - wnd->rectClient.left,
63 wnd->rectClient.bottom - wnd->rectClient.top);
65 if (hrgn && (CombineRgn32( wnd->hrgnUpdate, wnd->hrgnUpdate,
66 hrgn, RGN_AND) == NULLREGION))
68 DeleteObject32( wnd->hrgnUpdate );
72 DeleteObject32( hrgn );
76 wnd->flags &= ~WIN_NEEDS_NCPAINT;
78 if ((wnd->hwndSelf == GetActiveWindow32()) &&
79 !(wnd->flags & WIN_NCACTIVATED))
81 wnd->flags |= WIN_NCACTIVATED;
82 if( hClip > 1) DeleteObject32( hClip );
86 if (hClip) SendMessage16( wnd->hwndSelf, WM_NCPAINT, hClip, 0L );
88 if (hClip > 1) DeleteObject32( hClip );
92 /***********************************************************************
93 * BeginPaint16 (USER.39)
95 HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
99 WND *wndPtr = WIN_FindWndPtr( hwnd );
100 if (!wndPtr) return 0;
102 bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
104 wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
106 if (wndPtr->flags & WIN_NEEDS_NCPAINT) WIN_UpdateNCArea( wndPtr, TRUE );
108 if (((hrgnUpdate = wndPtr->hrgnUpdate) != 0) ||
109 (wndPtr->flags & WIN_INTERNAL_PAINT))
110 QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
112 wndPtr->hrgnUpdate = 0;
113 wndPtr->flags &= ~WIN_INTERNAL_PAINT;
117 dprintf_win(stddeb,"hrgnUpdate = %04x, ", hrgnUpdate);
119 /* When bIcon is TRUE hrgnUpdate is automatically in window coordinates
120 * (because rectClient == rectWindow for WS_MINIMIZE windows).
123 if (wndPtr->class->style & CS_PARENTDC)
125 /* Don't clip the output to the update region for CS_PARENTDC window */
127 DeleteObject32(hrgnUpdate);
128 lps->hdc = GetDCEx16( hwnd, 0, DCX_WINDOWPAINT | DCX_USESTYLE |
129 (bIcon ? DCX_WINDOW : 0) );
133 lps->hdc = GetDCEx16(hwnd, hrgnUpdate, DCX_INTERSECTRGN |
134 DCX_WINDOWPAINT | DCX_USESTYLE |
135 (bIcon ? DCX_WINDOW : 0) );
138 dprintf_win(stddeb,"hdc = %04x\n", lps->hdc);
142 fprintf(stderr, "GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd);
146 GetRgnBox16( InquireVisRgn(lps->hdc), &lps->rcPaint );
148 dprintf_win(stddeb,"box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top,
149 lps->rcPaint.right, lps->rcPaint.bottom );
151 DPtoLP16( lps->hdc, (LPPOINT16)&lps->rcPaint, 2 );
153 if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
155 wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
156 lps->fErase = !SendMessage16(hwnd, (bIcon) ? WM_ICONERASEBKGND
158 (WPARAM16)lps->hdc, 0 );
160 else lps->fErase = TRUE;
166 /***********************************************************************
167 * BeginPaint32 (USER32.9)
169 HDC32 WINAPI BeginPaint32( HWND32 hwnd, PAINTSTRUCT32 *lps )
173 BeginPaint16( hwnd, &ps );
174 lps->hdc = (HDC32)ps.hdc;
175 lps->fErase = ps.fErase;
176 lps->rcPaint.top = ps.rcPaint.top;
177 lps->rcPaint.left = ps.rcPaint.left;
178 lps->rcPaint.right = ps.rcPaint.right;
179 lps->rcPaint.bottom = ps.rcPaint.bottom;
180 lps->fRestore = ps.fRestore;
181 lps->fIncUpdate = ps.fIncUpdate;
186 /***********************************************************************
187 * EndPaint16 (USER.40)
189 BOOL16 WINAPI EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps )
191 ReleaseDC16( hwnd, lps->hdc );
197 /***********************************************************************
198 * EndPaint32 (USER32.175)
200 BOOL32 WINAPI EndPaint32( HWND32 hwnd, const PAINTSTRUCT32 *lps )
202 ReleaseDC32( hwnd, lps->hdc );
208 /***********************************************************************
209 * FillWindow (USER.324)
211 void WINAPI FillWindow( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush )
214 GetClientRect16( hwnd, &rect );
215 DPtoLP16( hdc, (LPPOINT16)&rect, 2 );
216 PaintRect( hwndParent, hwnd, hdc, hbrush, &rect );
220 /***********************************************************************
221 * PAINT_GetControlBrush
223 static HBRUSH16 PAINT_GetControlBrush( HWND32 hParent, HWND32 hWnd, HDC16 hDC, UINT16 ctlType )
225 HBRUSH16 bkgBrush = (HBRUSH16)SendMessage32A( hParent, WM_CTLCOLORMSGBOX + ctlType,
226 (WPARAM32)hDC, (LPARAM)hWnd );
227 if( !IsGDIObject(bkgBrush) )
228 bkgBrush = DEFWND_ControlColor( hDC, ctlType );
233 /***********************************************************************
234 * PaintRect (USER.325)
236 void WINAPI PaintRect( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc,
237 HBRUSH16 hbrush, const RECT16 *rect)
239 if( hbrush <= CTLCOLOR_MAX )
241 hbrush = PAINT_GetControlBrush( hwndParent, hwnd, hdc, (UINT16)hbrush );
245 FillRect16( hdc, rect, hbrush );
249 /***********************************************************************
250 * GetControlBrush (USER.326)
252 HBRUSH16 WINAPI GetControlBrush( HWND16 hwnd, HDC16 hdc, UINT16 ctlType )
254 WND* wndPtr = WIN_FindWndPtr( hwnd );
256 if((ctlType <= CTLCOLOR_MAX) && wndPtr )
259 if( wndPtr->dwStyle & WS_POPUP ) parent = wndPtr->owner;
260 else parent = wndPtr->parent;
261 if( !parent ) parent = wndPtr;
262 return (HBRUSH16)PAINT_GetControlBrush( parent->hwndSelf, hwnd, hdc, ctlType );
268 /***********************************************************************
271 * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask
272 * SendMessage() calls. This is a comment inside DefWindowProc() source
275 * This message avoids lots of inter-app message traffic
276 * by switching to the other task and continuing the
280 * LOWORD(lParam) = hrgnClip
281 * HIWORD(lParam) = hwndSkip (not used; always NULL)
283 * All in all, a prime candidate for a rewrite.
285 BOOL32 PAINT_RedrawWindow( HWND32 hwnd, const RECT32 *rectUpdate,
286 HRGN32 hrgnUpdate, UINT32 flags, UINT32 control )
294 if (!hwnd) hwnd = GetDesktopWindow32();
295 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
296 if (!WIN_IsWindowDrawable( wndPtr, !(flags & RDW_FRAME) ) )
297 return TRUE; /* No redraw needed */
299 bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
302 dprintf_win(stddeb, "RedrawWindow: %04x %d,%d-%d,%d %04x flags=%04x\n",
303 hwnd, rectUpdate->left, rectUpdate->top,
304 rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags );
308 dprintf_win(stddeb, "RedrawWindow: %04x NULL %04x flags=%04x\n",
309 hwnd, hrgnUpdate, flags);
312 GetClientRect32( hwnd, &rectClient );
314 if (flags & RDW_INVALIDATE) /* Invalidate */
316 int rgnNotEmpty = COMPLEXREGION;
318 if (wndPtr->hrgnUpdate > 1) /* Is there already an update region? */
320 if ((hrgn = hrgnUpdate) == 0)
321 hrgn = CreateRectRgnIndirect32( rectUpdate ? rectUpdate :
323 rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
325 if (!hrgnUpdate) DeleteObject32( hrgn );
327 else /* No update region yet */
329 if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
330 QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
333 wndPtr->hrgnUpdate = CreateRectRgn32( 0, 0, 0, 0 );
334 rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, hrgnUpdate,
337 else wndPtr->hrgnUpdate = CreateRectRgnIndirect32( rectUpdate ?
338 rectUpdate : &rectClient );
341 if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT;
343 /* check for bogus update region */
344 if ( rgnNotEmpty == NULLREGION )
346 wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
347 DeleteObject32( wndPtr->hrgnUpdate );
348 wndPtr->hrgnUpdate=0;
349 if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
350 QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
353 if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
354 flags |= RDW_FRAME; /* Force children frame invalidation */
356 else if (flags & RDW_VALIDATE) /* Validate */
358 /* We need an update region in order to validate anything */
359 if (wndPtr->hrgnUpdate > 1)
361 if (!hrgnUpdate && !rectUpdate)
363 /* Special case: validate everything */
364 DeleteObject32( wndPtr->hrgnUpdate );
365 wndPtr->hrgnUpdate = 0;
369 if ((hrgn = hrgnUpdate) == 0)
370 hrgn = CreateRectRgnIndirect32( rectUpdate );
371 if (CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
372 hrgn, RGN_DIFF ) == NULLREGION)
374 DeleteObject32( wndPtr->hrgnUpdate );
375 wndPtr->hrgnUpdate = 0;
377 if (!hrgnUpdate) DeleteObject32( hrgn );
379 if (!wndPtr->hrgnUpdate) /* No more update region */
380 if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
381 QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
383 if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT;
384 if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
387 /* Set/clear internal paint flag */
389 if (flags & RDW_INTERNALPAINT)
391 if ( wndPtr->hrgnUpdate <= 1 && !(wndPtr->flags & WIN_INTERNAL_PAINT))
392 QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
393 wndPtr->flags |= WIN_INTERNAL_PAINT;
395 else if (flags & RDW_NOINTERNALPAINT)
397 if ( wndPtr->hrgnUpdate <= 1 && (wndPtr->flags & WIN_INTERNAL_PAINT))
398 QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
399 wndPtr->flags &= ~WIN_INTERNAL_PAINT;
402 /* Erase/update window */
404 if (flags & RDW_UPDATENOW)
406 if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */
407 SendMessage16( hwnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 );
409 else if (flags & RDW_ERASENOW)
411 if (wndPtr->flags & WIN_NEEDS_NCPAINT)
412 WIN_UpdateNCArea( wndPtr, FALSE);
414 if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
416 HDC32 hdc = GetDCEx32( hwnd, wndPtr->hrgnUpdate,
417 DCX_INTERSECTRGN | DCX_USESTYLE |
418 DCX_KEEPCLIPRGN | DCX_WINDOWPAINT |
419 (bIcon ? DCX_WINDOW : 0) );
422 if (SendMessage16( hwnd, (bIcon) ? WM_ICONERASEBKGND
425 wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
426 ReleaseDC32( hwnd, hdc );
431 /* Recursively process children */
433 if (!(flags & RDW_NOCHILDREN) &&
434 ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) &&
435 !(wndPtr->dwStyle & WS_MINIMIZE) )
437 if ( hrgnUpdate || rectUpdate )
439 if (!(hrgn = CreateRectRgn32( 0, 0, 0, 0 ))) return TRUE;
442 control |= (RDW_C_DELETEHRGN | RDW_C_USEHRGN);
443 if( !(hrgnUpdate = CreateRectRgnIndirect32( rectUpdate )) )
445 DeleteObject32( hrgn );
449 if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
451 for (ppWnd = list; *ppWnd; ppWnd++)
454 if (!IsWindow32(wndPtr->hwndSelf)) continue;
455 if (wndPtr->dwStyle & WS_VISIBLE)
458 wndPtr->rectWindow.left, wndPtr->rectWindow.top,
459 wndPtr->rectWindow.right, wndPtr->rectWindow.bottom );
460 if (CombineRgn32( hrgn, hrgn, hrgnUpdate, RGN_AND ))
462 OffsetRgn32( hrgn, -wndPtr->rectClient.left,
463 -wndPtr->rectClient.top );
464 PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, hrgn, flags,
469 HeapFree( SystemHeap, 0, list );
471 DeleteObject32( hrgn );
472 if (control & RDW_C_DELETEHRGN) DeleteObject32( hrgnUpdate );
476 if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
478 for (ppWnd = list; *ppWnd; ppWnd++)
481 if (IsWindow32( wndPtr->hwndSelf ))
482 PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags, 0 );
484 HeapFree( SystemHeap, 0, list );
493 /***********************************************************************
494 * RedrawWindow32 (USER32.425)
496 BOOL32 WINAPI RedrawWindow32( HWND32 hwnd, const RECT32 *rectUpdate,
497 HRGN32 hrgnUpdate, UINT32 flags )
499 return PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 );
503 /***********************************************************************
504 * RedrawWindow16 (USER.290)
506 BOOL16 WINAPI RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate,
507 HRGN16 hrgnUpdate, UINT16 flags )
512 CONV_RECT16TO32( rectUpdate, &r );
513 return (BOOL16)RedrawWindow32( (HWND32)hwnd, &r, hrgnUpdate, flags );
515 return (BOOL16)PAINT_RedrawWindow( (HWND32)hwnd, NULL,
516 (HRGN32)hrgnUpdate, flags, 0 );
520 /***********************************************************************
521 * UpdateWindow16 (USER.124)
523 void WINAPI UpdateWindow16( HWND16 hwnd )
525 PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
528 /***********************************************************************
529 * UpdateWindow32 (USER32.566)
531 void WINAPI UpdateWindow32( HWND32 hwnd )
533 PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
536 /***********************************************************************
537 * InvalidateRgn16 (USER.126)
539 void WINAPI InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
541 PAINT_RedrawWindow((HWND32)hwnd, NULL, (HRGN32)hrgn,
542 RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
546 /***********************************************************************
547 * InvalidateRgn32 (USER32.328)
549 void WINAPI InvalidateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
551 PAINT_RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
555 /***********************************************************************
556 * InvalidateRect16 (USER.125)
558 void WINAPI InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase )
560 RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
564 /***********************************************************************
565 * InvalidateRect32 (USER32.327)
567 void WINAPI InvalidateRect32( HWND32 hwnd, const RECT32 *rect, BOOL32 erase )
569 PAINT_RedrawWindow( hwnd, rect, 0,
570 RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
574 /***********************************************************************
575 * ValidateRgn16 (USER.128)
577 void WINAPI ValidateRgn16( HWND16 hwnd, HRGN16 hrgn )
579 PAINT_RedrawWindow( (HWND32)hwnd, NULL, (HRGN32)hrgn,
580 RDW_VALIDATE | RDW_NOCHILDREN, 0 );
584 /***********************************************************************
585 * ValidateRgn32 (USER32.571)
587 void WINAPI ValidateRgn32( HWND32 hwnd, HRGN32 hrgn )
589 PAINT_RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
593 /***********************************************************************
594 * ValidateRect16 (USER.127)
596 void WINAPI ValidateRect16( HWND16 hwnd, const RECT16 *rect )
598 RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN );
602 /***********************************************************************
603 * ValidateRect32 (USER32.570)
605 void WINAPI ValidateRect32( HWND32 hwnd, const RECT32 *rect )
607 PAINT_RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
611 /***********************************************************************
612 * GetUpdateRect16 (USER.190)
614 BOOL16 WINAPI GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase )
619 if (!rect) return GetUpdateRect32( hwnd, NULL, erase );
620 ret = GetUpdateRect32( hwnd, &r, erase );
621 CONV_RECT32TO16( &r, rect );
626 /***********************************************************************
627 * GetUpdateRect32 (USER32.296)
629 BOOL32 WINAPI GetUpdateRect32( HWND32 hwnd, LPRECT32 rect, BOOL32 erase )
631 WND * wndPtr = WIN_FindWndPtr( hwnd );
632 if (!wndPtr) return FALSE;
636 if (wndPtr->hrgnUpdate > 1)
638 HRGN32 hrgn = CreateRectRgn32( 0, 0, 0, 0 );
639 if (GetUpdateRgn32( hwnd, hrgn, erase ) == ERROR) return FALSE;
640 GetRgnBox32( hrgn, rect );
641 DeleteObject32( hrgn );
643 else SetRectEmpty32( rect );
645 return (wndPtr->hrgnUpdate > 1);
649 /***********************************************************************
650 * GetUpdateRgn16 (USER.237)
652 INT16 WINAPI GetUpdateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
654 return GetUpdateRgn32( hwnd, hrgn, erase );
658 /***********************************************************************
659 * GetUpdateRgn32 (USER32.297)
661 INT32 WINAPI GetUpdateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
664 WND * wndPtr = WIN_FindWndPtr( hwnd );
665 if (!wndPtr) return ERROR;
667 if (wndPtr->hrgnUpdate <= 1)
669 SetRectRgn32( hrgn, 0, 0, 0, 0 );
672 retval = CombineRgn32( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY );
673 if (erase) RedrawWindow32( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN );
678 /***********************************************************************
679 * ExcludeUpdateRgn16 (USER.238)
681 INT16 WINAPI ExcludeUpdateRgn16( HDC16 hdc, HWND16 hwnd )
683 return ExcludeUpdateRgn32( hdc, hwnd );
687 /***********************************************************************
688 * ExcludeUpdateRgn32 (USER32.194)
690 INT32 WINAPI ExcludeUpdateRgn32( HDC32 hdc, HWND32 hwnd )
695 if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR;
697 if (wndPtr->hrgnUpdate)
700 HRGN32 hrgn = CreateRectRgn32(wndPtr->rectWindow.left - wndPtr->rectClient.left,
701 wndPtr->rectWindow.top - wndPtr->rectClient.top,
702 wndPtr->rectClient.right - wndPtr->rectClient.left,
703 wndPtr->rectClient.bottom - wndPtr->rectClient.top);
704 if( wndPtr->hrgnUpdate > 1 )
705 CombineRgn32(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY);
707 /* do ugly coordinate translations in dce.c */
709 ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn );
710 DeleteObject32( hrgn );
713 return GetClipBox32( hdc, &rect );