| /* | |
| * Window painting functions | |
| * | |
| * Copyright 1993, 1994, 1995 Alexandre Julliard | |
| * 1999 Alex Korobka | |
| * | |
| * This library is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * This library is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with this library; if not, write to the Free Software | |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| */ | |
| #include "config.h" | |
| #include "wine/port.h" | |
| #include <stdarg.h> | |
| #include <string.h> | |
| #include "windef.h" | |
| #include "winbase.h" | |
| #include "wingdi.h" | |
| #include "wine/winuser16.h" | |
| #include "wownt32.h" | |
| #include "wine/unicode.h" | |
| #include "wine/server.h" | |
| #include "user.h" | |
| #include "win.h" | |
| #include "message.h" | |
| #include "dce.h" | |
| #include "wine/debug.h" | |
| WINE_DEFAULT_DEBUG_CHANNEL(win); | |
| WINE_DECLARE_DEBUG_CHANNEL(nonclient); | |
| /* client rect in window coordinates */ | |
| #define GETCLIENTRECTW( wnd, r ) (r).left = (wnd)->rectClient.left - (wnd)->rectWindow.left; \ | |
| (r).top = (wnd)->rectClient.top - (wnd)->rectWindow.top; \ | |
| (r).right = (wnd)->rectClient.right - (wnd)->rectWindow.left; \ | |
| (r).bottom = (wnd)->rectClient.bottom - (wnd)->rectWindow.top | |
| /* PAINT_RedrawWindow() control flags */ | |
| #define RDW_EX_DELAY_NCPAINT 0x0020 | |
| /* WIN_UpdateNCRgn() flags */ | |
| #define UNC_CHECK 0x0001 | |
| #define UNC_ENTIRE 0x0002 | |
| #define UNC_REGION 0x0004 | |
| #define UNC_UPDATE 0x0008 | |
| #define UNC_DELAY_NCPAINT 0x0010 | |
| #define UNC_IN_BEGINPAINT 0x0020 | |
| HPALETTE (WINAPI *pfnGDISelectPalette)(HDC hdc, HPALETTE hpal, WORD bkgnd ) = NULL; | |
| UINT (WINAPI *pfnGDIRealizePalette)(HDC hdc) = NULL; | |
| /*********************************************************************** | |
| * add_paint_count | |
| * | |
| * Add an increment (normally 1 or -1) to the current paint count of a window. | |
| */ | |
| static void add_paint_count( HWND hwnd, int incr ) | |
| { | |
| SERVER_START_REQ( inc_window_paint_count ) | |
| { | |
| req->handle = hwnd; | |
| req->incr = incr; | |
| wine_server_call( req ); | |
| } | |
| SERVER_END_REQ; | |
| } | |
| /*********************************************************************** | |
| * crop_rgn | |
| * | |
| * hSrc: Region to crop. | |
| * lpRect: Clipping rectangle. | |
| * | |
| * hDst: Region to hold the result (a new region is created if it's 0). | |
| * Allowed to be the same region as hSrc in which case everything | |
| * will be done in place, with no memory reallocations. | |
| * | |
| * Returns: hDst if success, 0 otherwise. | |
| */ | |
| static HRGN crop_rgn( HRGN hDst, HRGN hSrc, const RECT *rect ) | |
| { | |
| HRGN h = CreateRectRgnIndirect( rect ); | |
| if (hDst == 0) hDst = h; | |
| CombineRgn( hDst, hSrc, h, RGN_AND ); | |
| if (hDst != h) DeleteObject( h ); | |
| return hDst; | |
| } | |
| /*********************************************************************** | |
| * WIN_HaveToDelayNCPAINT | |
| * | |
| * Currently, in the Wine painting mechanism, the WM_NCPAINT message | |
| * is generated as soon as a region intersecting the non-client area | |
| * of a window is invalidated. | |
| * | |
| * This technique will work fine for all windows whose parents | |
| * have the WS_CLIPCHILDREN style. When the parents have that style, | |
| * they are not going to override the contents of their children. | |
| * However, when the parent doesn't have that style, Windows relies | |
| * on a "painter's algorithm" to display the contents of the windows. | |
| * That is, windows are painted from back to front. This includes the | |
| * non-client area. | |
| * | |
| * This method looks at the current state of a window to determine | |
| * if the sending of the WM_NCPAINT message should be delayed until | |
| * the BeginPaint call. | |
| * | |
| * PARAMS: | |
| * wndPtr - A Locked window pointer to the window we're | |
| * examining. | |
| * uncFlags - This is the flag passed to the WIN_UpdateNCRgn | |
| * function. This is a shortcut for the cases when | |
| * we already know when to avoid scanning all the | |
| * parents of a window. If you already know that this | |
| * window's NCPAINT should be delayed, set the | |
| * UNC_DELAY_NCPAINT flag for this parameter. | |
| * | |
| * This shortcut behavior is implemented in the | |
| * RDW_Paint() method. | |
| * | |
| */ | |
| static BOOL WIN_HaveToDelayNCPAINT( HWND hwnd, UINT uncFlags) | |
| { | |
| /* | |
| * Test the shortcut first. (duh) | |
| */ | |
| if (uncFlags & UNC_DELAY_NCPAINT) | |
| return TRUE; | |
| /* | |
| * The UNC_IN_BEGINPAINT flag is set in the BeginPaint | |
| * method only. This is another shortcut to avoid going | |
| * up the parent's chain of the window to finally | |
| * figure-out that none of them has an invalid region. | |
| */ | |
| if (uncFlags & UNC_IN_BEGINPAINT) | |
| return FALSE; | |
| /* | |
| * Scan all the parents of this window to find a window | |
| * that doesn't have the WS_CLIPCHILDREN style and that | |
| * has an invalid region. | |
| */ | |
| while ((hwnd = GetAncestor( hwnd, GA_PARENT ))) | |
| { | |
| WND* parentWnd = WIN_FindWndPtr( hwnd ); | |
| if (parentWnd && !(parentWnd->dwStyle & WS_CLIPCHILDREN) && parentWnd->hrgnUpdate) | |
| { | |
| WIN_ReleaseWndPtr( parentWnd ); | |
| return TRUE; | |
| } | |
| WIN_ReleaseWndPtr( parentWnd ); | |
| } | |
| return FALSE; | |
| } | |
| /*********************************************************************** | |
| * WIN_UpdateNCRgn | |
| * | |
| * Things to do: | |
| * Send WM_NCPAINT if required (when nonclient is invalid or UNC_ENTIRE flag is set) | |
| * Crop hrgnUpdate to a client rect, especially if it 1. | |
| * If UNC_REGION is set return update region for the client rect. | |
| * | |
| * NOTE: UNC_REGION is mainly for the RDW_Paint() chunk that sends WM_ERASEBKGND message. | |
| * The trick is that when the returned region handle may be different from hRgn. | |
| * In this case the old hRgn must be considered gone. BUT, if the returned value | |
| * is 1 then the hRgn is preserved and RDW_Paint() will have to get | |
| * a DC without extra clipping region. | |
| */ | |
| static HRGN WIN_UpdateNCRgn(WND* wnd, HRGN hRgn, UINT uncFlags ) | |
| { | |
| RECT r; | |
| HRGN hClip = 0; | |
| HRGN hrgnRet = 0; | |
| TRACE_(nonclient)("hwnd %p [%p] hrgn %p, unc %04x, ncf %i\n", | |
| wnd->hwndSelf, wnd->hrgnUpdate, hRgn, uncFlags, wnd->flags & WIN_NEEDS_NCPAINT); | |
| /* desktop window doesn't have a nonclient area */ | |
| if(wnd->hwndSelf == GetDesktopWindow()) | |
| { | |
| wnd->flags &= ~WIN_NEEDS_NCPAINT; | |
| if( wnd->hrgnUpdate > (HRGN)1 ) | |
| { | |
| if (!hRgn) hRgn = CreateRectRgn( 0, 0, 0, 0 ); | |
| CombineRgn( hRgn, wnd->hrgnUpdate, 0, RGN_COPY ); | |
| hrgnRet = hRgn; | |
| } | |
| else | |
| { | |
| hrgnRet = wnd->hrgnUpdate; | |
| } | |
| return hrgnRet; | |
| } | |
| if ((wnd->hwndSelf == GetForegroundWindow()) && | |
| !(wnd->flags & WIN_NCACTIVATED) ) | |
| { | |
| wnd->flags |= WIN_NCACTIVATED; | |
| uncFlags |= UNC_ENTIRE; | |
| } | |
| /* | |
| * If the window's non-client area needs to be painted, | |
| */ | |
| if ( ( wnd->flags & WIN_NEEDS_NCPAINT ) && | |
| !WIN_HaveToDelayNCPAINT(wnd->hwndSelf, uncFlags) ) | |
| { | |
| RECT r2, r3; | |
| wnd->flags &= ~WIN_NEEDS_NCPAINT; | |
| GETCLIENTRECTW( wnd, r ); | |
| TRACE_(nonclient)( "\tclient box (%ld,%ld-%ld,%ld), hrgnUpdate %p\n", | |
| r.left, r.top, r.right, r.bottom, wnd->hrgnUpdate ); | |
| if( wnd->hrgnUpdate > (HRGN)1 ) | |
| { | |
| /* Check if update rgn overlaps with nonclient area */ | |
| GetRgnBox( wnd->hrgnUpdate, &r2 ); | |
| UnionRect( &r3, &r2, &r ); | |
| if( r3.left != r.left || r3.top != r.top || | |
| r3.right != r.right || r3.bottom != r.bottom ) /* it does */ | |
| { | |
| /* crop hrgnUpdate, save old one in hClip - the only | |
| * case that places a valid region handle in hClip */ | |
| hClip = wnd->hrgnUpdate; | |
| wnd->hrgnUpdate = crop_rgn( hRgn, hClip, &r ); | |
| if( uncFlags & UNC_REGION ) hrgnRet = hClip; | |
| } | |
| if( uncFlags & UNC_CHECK ) | |
| { | |
| GetRgnBox( wnd->hrgnUpdate, &r3 ); | |
| if( IsRectEmpty( &r3 ) ) | |
| { | |
| /* delete the update region since all invalid | |
| * parts were in the nonclient area */ | |
| DeleteObject( wnd->hrgnUpdate ); | |
| wnd->hrgnUpdate = 0; | |
| if(!(wnd->flags & WIN_INTERNAL_PAINT)) | |
| add_paint_count( wnd->hwndSelf, -1 ); | |
| wnd->flags &= ~WIN_NEEDS_ERASEBKGND; | |
| } | |
| } | |
| if(!hClip && wnd->hrgnUpdate ) goto copyrgn; | |
| } | |
| else | |
| if( wnd->hrgnUpdate == (HRGN)1 )/* entire window */ | |
| { | |
| if( uncFlags & UNC_UPDATE ) wnd->hrgnUpdate = CreateRectRgnIndirect( &r ); | |
| if( uncFlags & UNC_REGION ) hrgnRet = (HRGN)1; | |
| uncFlags |= UNC_ENTIRE; | |
| } | |
| } | |
| else /* no WM_NCPAINT unless forced */ | |
| { | |
| if( wnd->hrgnUpdate > (HRGN)1 ) | |
| { | |
| copyrgn: | |
| if( uncFlags & UNC_REGION ) | |
| { | |
| if (!hRgn) hRgn = CreateRectRgn( 0, 0, 0, 0 ); | |
| CombineRgn( hRgn, wnd->hrgnUpdate, 0, RGN_COPY ); | |
| hrgnRet = hRgn; | |
| } | |
| } | |
| else | |
| if( wnd->hrgnUpdate == (HRGN)1 && (uncFlags & UNC_UPDATE) ) | |
| { | |
| GETCLIENTRECTW( wnd, r ); | |
| wnd->hrgnUpdate = CreateRectRgnIndirect( &r ); | |
| if( uncFlags & UNC_REGION ) hrgnRet = (HRGN)1; | |
| } | |
| } | |
| if(!hClip && (uncFlags & UNC_ENTIRE) ) | |
| { | |
| /* still don't do anything if there is no nonclient area */ | |
| hClip = (HRGN)(memcmp( &wnd->rectWindow, &wnd->rectClient, sizeof(RECT) ) != 0); | |
| } | |
| if( hClip ) /* NOTE: WM_NCPAINT allows wParam to be 1 */ | |
| { | |
| if ( hClip == hrgnRet && hrgnRet > (HRGN)1 ) { | |
| hClip = CreateRectRgn( 0, 0, 0, 0 ); | |
| CombineRgn( hClip, hrgnRet, 0, RGN_COPY ); | |
| } | |
| SendMessageA( wnd->hwndSelf, WM_NCPAINT, (WPARAM)hClip, 0L ); | |
| if( (hClip > (HRGN)1) && (hClip != hRgn) && (hClip != hrgnRet) ) | |
| DeleteObject( hClip ); | |
| /* | |
| * Since all Window locks are suspended while processing the WM_NCPAINT | |
| * we want to make sure the window still exists before continuing. | |
| */ | |
| if (!IsWindow(wnd->hwndSelf)) | |
| { | |
| DeleteObject(hrgnRet); | |
| hrgnRet=0; | |
| } | |
| } | |
| TRACE_(nonclient)("returning %p (hClip = %p, hrgnUpdate = %p)\n", hrgnRet, hClip, wnd->hrgnUpdate ); | |
| return hrgnRet; | |
| } | |
| /*********************************************************************** | |
| * RDW_ValidateParent [RDW_UpdateRgns() helper] | |
| * | |
| * Validate the portions of parents that are covered by a validated child | |
| * wndPtr = child | |
| */ | |
| static void RDW_ValidateParent(WND *wndChild) | |
| { | |
| HWND parent; | |
| HRGN hrg; | |
| if (wndChild->hrgnUpdate == (HRGN)1 ) { | |
| RECT r; | |
| r.left = 0; | |
| r.top = 0; | |
| r.right = wndChild->rectWindow.right - wndChild->rectWindow.left; | |
| r.bottom = wndChild->rectWindow.bottom - wndChild->rectWindow.top; | |
| hrg = CreateRectRgnIndirect( &r ); | |
| } else | |
| hrg = wndChild->hrgnUpdate; | |
| parent = GetAncestor( wndChild->hwndSelf, GA_PARENT ); | |
| while (parent && parent != GetDesktopWindow()) | |
| { | |
| WND *wndParent = WIN_FindWndPtr( parent ); | |
| if (wndParent && !(wndParent->dwStyle & WS_CLIPCHILDREN)) | |
| { | |
| if (wndParent->hrgnUpdate != 0) | |
| { | |
| POINT ptOffset; | |
| RECT rect, rectParent; | |
| if( wndParent->hrgnUpdate == (HRGN)1 ) | |
| { | |
| RECT r; | |
| r.left = 0; | |
| r.top = 0; | |
| r.right = wndParent->rectWindow.right - wndParent->rectWindow.left; | |
| r.bottom = wndParent->rectWindow.bottom - wndParent->rectWindow.top; | |
| wndParent->hrgnUpdate = CreateRectRgnIndirect( &r ); | |
| } | |
| /* we must offset the child region by the offset of the child rect in the parent */ | |
| GetWindowRect(wndParent->hwndSelf, &rectParent); | |
| GetWindowRect(wndChild->hwndSelf, &rect); | |
| ptOffset.x = rect.left - rectParent.left; | |
| ptOffset.y = rect.top - rectParent.top; | |
| OffsetRgn( hrg, ptOffset.x, ptOffset.y ); | |
| if (CombineRgn( wndParent->hrgnUpdate, wndParent->hrgnUpdate, hrg, RGN_DIFF ) == NULLREGION) | |
| { | |
| /* the update region has become empty */ | |
| DeleteObject( wndParent->hrgnUpdate ); | |
| wndParent->hrgnUpdate = 0; | |
| wndParent->flags &= ~WIN_NEEDS_ERASEBKGND; | |
| if( !(wndParent->flags & WIN_INTERNAL_PAINT) ) | |
| add_paint_count( wndParent->hwndSelf, -1 ); | |
| } | |
| OffsetRgn( hrg, -ptOffset.x, -ptOffset.y ); | |
| } | |
| } | |
| WIN_ReleaseWndPtr( wndParent ); | |
| parent = GetAncestor( parent, GA_PARENT ); | |
| } | |
| if (hrg != wndChild->hrgnUpdate) DeleteObject( hrg ); | |
| } | |
| /*********************************************************************** | |
| * RDW_UpdateRgns [RedrawWindow() helper] | |
| * | |
| * Walks the window tree and adds/removes parts of the hRgn to/from update | |
| * regions of windows that overlap it. Also, manages internal paint flags. | |
| * | |
| * NOTE: Walks the window tree so the caller must lock it. | |
| * MUST preserve hRgn (can modify but then has to restore). | |
| */ | |
| static void RDW_UpdateRgns( WND* wndPtr, HRGN hRgn, UINT flags, BOOL firstRecursLevel ) | |
| { | |
| /* | |
| * Called only when one of the following is set: | |
| * (RDW_INVALIDATE | RDW_VALIDATE | RDW_INTERNALPAINT | RDW_NOINTERNALPAINT) | |
| */ | |
| BOOL bHadOne = wndPtr->hrgnUpdate && hRgn; | |
| BOOL bChildren = (!(flags & RDW_NOCHILDREN) && !(wndPtr->dwStyle & WS_MINIMIZE) && | |
| ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) ); | |
| RECT r; | |
| r.left = 0; | |
| r.top = 0; | |
| r.right = wndPtr->rectWindow.right - wndPtr->rectWindow.left; | |
| r.bottom = wndPtr->rectWindow.bottom - wndPtr->rectWindow.top; | |
| TRACE("\thwnd %p [%p] -> hrgn [%p], flags [%04x]\n", wndPtr->hwndSelf, wndPtr->hrgnUpdate, hRgn, flags ); | |
| if( flags & RDW_INVALIDATE ) | |
| { | |
| if( hRgn > (HRGN)1 ) | |
| { | |
| switch ((UINT)wndPtr->hrgnUpdate) | |
| { | |
| default: | |
| CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, hRgn, RGN_OR ); | |
| /* fall through */ | |
| case 0: | |
| wndPtr->hrgnUpdate = crop_rgn( wndPtr->hrgnUpdate, | |
| wndPtr->hrgnUpdate ? wndPtr->hrgnUpdate : hRgn, | |
| &r ); | |
| if( !bHadOne ) | |
| { | |
| GetRgnBox( wndPtr->hrgnUpdate, &r ); | |
| if( IsRectEmpty( &r ) ) | |
| { | |
| DeleteObject( wndPtr->hrgnUpdate ); | |
| wndPtr->hrgnUpdate = 0; | |
| goto end; | |
| } | |
| } | |
| break; | |
| case 1: /* already an entire window */ | |
| break; | |
| } | |
| } | |
| else if( hRgn == (HRGN)1 ) | |
| { | |
| if( wndPtr->hrgnUpdate > (HRGN)1 ) | |
| DeleteObject( wndPtr->hrgnUpdate ); | |
| wndPtr->hrgnUpdate = (HRGN)1; | |
| } | |
| else | |
| { | |
| /* hRgn is zero */ | |
| if( wndPtr->hrgnUpdate > (HRGN)1) | |
| { | |
| GetRgnBox( wndPtr->hrgnUpdate, &r ); | |
| if( IsRectEmpty( &r ) ) | |
| { | |
| DeleteObject( wndPtr->hrgnUpdate ); | |
| wndPtr->hrgnUpdate = 0; | |
| goto end; | |
| } | |
| } | |
| hRgn = wndPtr->hrgnUpdate; /* this is a trick that depends | |
| * on code in RDW_Paint() */ | |
| } | |
| if( !bHadOne && !(wndPtr->flags & WIN_INTERNAL_PAINT) ) | |
| add_paint_count( wndPtr->hwndSelf, 1 ); | |
| if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT; | |
| if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND; | |
| flags |= RDW_FRAME; | |
| } | |
| else if( flags & RDW_VALIDATE ) | |
| { | |
| if( wndPtr->hrgnUpdate ) | |
| { | |
| if( hRgn > (HRGN)1 ) | |
| { | |
| if( wndPtr->hrgnUpdate == (HRGN)1 ) | |
| wndPtr->hrgnUpdate = CreateRectRgnIndirect( &r ); | |
| if( CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, hRgn, RGN_DIFF ) | |
| == NULLREGION ) | |
| { | |
| DeleteObject( wndPtr->hrgnUpdate ); | |
| wndPtr->hrgnUpdate = 0; | |
| } | |
| } | |
| else /* validate everything */ | |
| { | |
| if( wndPtr->hrgnUpdate > (HRGN)1 ) DeleteObject( wndPtr->hrgnUpdate ); | |
| wndPtr->hrgnUpdate = 0; | |
| } | |
| if( !wndPtr->hrgnUpdate ) | |
| { | |
| wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; | |
| if( !(wndPtr->flags & WIN_INTERNAL_PAINT) ) | |
| add_paint_count( wndPtr->hwndSelf, -1 ); | |
| } | |
| } | |
| if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT; | |
| if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; | |
| } | |
| if ((firstRecursLevel) && (wndPtr->hrgnUpdate != 0) && (flags & RDW_UPDATENOW)) | |
| RDW_ValidateParent(wndPtr); /* validate parent covered by region */ | |
| /* in/validate child windows that intersect with the region if it | |
| * is a valid handle. */ | |
| if( flags & (RDW_INVALIDATE | RDW_VALIDATE) ) | |
| { | |
| HWND *list; | |
| if( hRgn > (HRGN)1 && bChildren && (list = WIN_ListChildren( wndPtr->hwndSelf ))) | |
| { | |
| POINT ptTotal, prevOrigin = {0,0}; | |
| POINT ptClient; | |
| INT i; | |
| ptClient.x = wndPtr->rectClient.left - wndPtr->rectWindow.left; | |
| ptClient.y = wndPtr->rectClient.top - wndPtr->rectWindow.top; | |
| for(i = ptTotal.x = ptTotal.y = 0; list[i]; i++) | |
| { | |
| WND *wnd = WIN_FindWndPtr( list[i] ); | |
| if (!wnd) continue; | |
| if( wnd->dwStyle & WS_VISIBLE ) | |
| { | |
| POINT ptOffset; | |
| r.left = wnd->rectWindow.left + ptClient.x; | |
| r.right = wnd->rectWindow.right + ptClient.x; | |
| r.top = wnd->rectWindow.top + ptClient.y; | |
| r.bottom = wnd->rectWindow.bottom + ptClient.y; | |
| ptOffset.x = r.left - prevOrigin.x; | |
| ptOffset.y = r.top - prevOrigin.y; | |
| OffsetRect( &r, -ptTotal.x, -ptTotal.y ); | |
| if( RectInRegion( hRgn, &r ) ) | |
| { | |
| OffsetRgn( hRgn, -ptOffset.x, -ptOffset.y ); | |
| RDW_UpdateRgns( wnd, hRgn, flags, FALSE ); | |
| prevOrigin.x = r.left + ptTotal.x; | |
| prevOrigin.y = r.top + ptTotal.y; | |
| ptTotal.x += ptOffset.x; | |
| ptTotal.y += ptOffset.y; | |
| } | |
| } | |
| WIN_ReleaseWndPtr( wnd ); | |
| } | |
| HeapFree( GetProcessHeap(), 0, list ); | |
| OffsetRgn( hRgn, ptTotal.x, ptTotal.y ); | |
| bChildren = 0; | |
| } | |
| } | |
| /* handle hRgn == 1 (alias for entire window) and/or internal paint recursion */ | |
| if( bChildren ) | |
| { | |
| HWND *list; | |
| if ((list = WIN_ListChildren( wndPtr->hwndSelf ))) | |
| { | |
| INT i; | |
| for (i = 0; list[i]; i++) | |
| { | |
| WND *wnd = WIN_FindWndPtr( list[i] ); | |
| if (!wnd) continue; | |
| if( wnd->dwStyle & WS_VISIBLE ) | |
| RDW_UpdateRgns( wnd, hRgn, flags, FALSE ); | |
| WIN_ReleaseWndPtr( wnd ); | |
| } | |
| HeapFree( GetProcessHeap(), 0, list ); | |
| } | |
| } | |
| end: | |
| /* Set/clear internal paint flag */ | |
| if (flags & RDW_INTERNALPAINT) | |
| { | |
| if ( !wndPtr->hrgnUpdate && !(wndPtr->flags & WIN_INTERNAL_PAINT)) | |
| add_paint_count( wndPtr->hwndSelf, 1 ); | |
| wndPtr->flags |= WIN_INTERNAL_PAINT; | |
| } | |
| else if (flags & RDW_NOINTERNALPAINT) | |
| { | |
| if ( !wndPtr->hrgnUpdate && (wndPtr->flags & WIN_INTERNAL_PAINT)) | |
| add_paint_count( wndPtr->hwndSelf, -1 ); | |
| wndPtr->flags &= ~WIN_INTERNAL_PAINT; | |
| } | |
| } | |
| /*********************************************************************** | |
| * RDW_Paint [RedrawWindow() helper] | |
| * | |
| * Walks the window tree and paints/erases windows that have | |
| * nonzero update regions according to redraw flags. hrgn is a scratch | |
| * region passed down during recursion. Must not be 1. | |
| * | |
| */ | |
| static HRGN RDW_Paint( WND* wndPtr, HRGN hrgn, UINT flags, UINT ex ) | |
| { | |
| /* NOTE: wndPtr is locked by caller. | |
| * | |
| * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask | |
| * SendMessage() calls. This is a comment inside DefWindowProc() source | |
| * from 16-bit SDK: | |
| * | |
| * This message avoids lots of inter-app message traffic | |
| * by switching to the other task and continuing the | |
| * recursion there. | |
| * | |
| * wParam = flags | |
| * LOWORD(lParam) = hrgnClip | |
| * HIWORD(lParam) = hwndSkip (not used; always NULL) | |
| * | |
| */ | |
| HDC hDC; | |
| HWND hWnd = wndPtr->hwndSelf; | |
| BOOL bIcon = ((wndPtr->dwStyle & WS_MINIMIZE) && GetClassLongA(hWnd, GCL_HICON)); | |
| /* Erase/update the window itself ... */ | |
| TRACE("\thwnd %p [%p] -> hrgn [%p], flags [%04x]\n", hWnd, wndPtr->hrgnUpdate, hrgn, flags ); | |
| /* | |
| * Check if this window should delay it's processing of WM_NCPAINT. | |
| * See WIN_HaveToDelayNCPAINT for a description of the mechanism | |
| */ | |
| if ((ex & RDW_EX_DELAY_NCPAINT) || WIN_HaveToDelayNCPAINT(wndPtr->hwndSelf, 0) ) | |
| ex |= RDW_EX_DELAY_NCPAINT; | |
| if (flags & RDW_UPDATENOW) | |
| { | |
| if (wndPtr->hrgnUpdate) SendMessageW( hWnd, WM_PAINT, 0, 0 ); | |
| } | |
| else if (flags & RDW_ERASENOW) | |
| { | |
| UINT dcx = DCX_INTERSECTRGN | DCX_USESTYLE | DCX_KEEPCLIPRGN | DCX_WINDOWPAINT | DCX_CACHE; | |
| HRGN hrgnRet; | |
| hrgnRet = WIN_UpdateNCRgn(wndPtr, | |
| hrgn, | |
| UNC_REGION | UNC_CHECK | | |
| ((ex & RDW_EX_DELAY_NCPAINT) ? UNC_DELAY_NCPAINT : 0) ); | |
| if( hrgnRet ) | |
| { | |
| if( hrgnRet > (HRGN)1 ) hrgn = hrgnRet; else hrgnRet = 0; /* entire client */ | |
| if( wndPtr->flags & WIN_NEEDS_ERASEBKGND ) | |
| { | |
| if( bIcon ) dcx |= DCX_WINDOW; | |
| else | |
| if( hrgnRet ) | |
| OffsetRgn( hrgnRet, wndPtr->rectWindow.left - wndPtr->rectClient.left, | |
| wndPtr->rectWindow.top - wndPtr->rectClient.top); | |
| else | |
| dcx &= ~DCX_INTERSECTRGN; | |
| if (( hDC = GetDCEx( hWnd, hrgnRet, dcx )) ) | |
| { | |
| if (SendMessageW( hWnd, WM_ERASEBKGND, (WPARAM)hDC, 0 )) | |
| wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; | |
| ReleaseDC( hWnd, hDC ); | |
| } | |
| } | |
| } | |
| } | |
| if( !IsWindow(hWnd) ) return hrgn; | |
| /* ... and its child windows */ | |
| if(!(flags & RDW_NOCHILDREN) && !(wndPtr->dwStyle & WS_MINIMIZE) && | |
| ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) ) | |
| { | |
| HWND *list, *phwnd; | |
| if( (list = WIN_ListChildren( wndPtr->hwndSelf )) ) | |
| { | |
| for (phwnd = list; *phwnd; phwnd++) | |
| { | |
| if (!(wndPtr = WIN_FindWndPtr( *phwnd ))) continue; | |
| if ( (wndPtr->dwStyle & WS_VISIBLE) && | |
| (wndPtr->hrgnUpdate || (wndPtr->flags & WIN_INTERNAL_PAINT)) ) | |
| hrgn = RDW_Paint( wndPtr, hrgn, flags, ex ); | |
| WIN_ReleaseWndPtr(wndPtr); | |
| } | |
| HeapFree( GetProcessHeap(), 0, list ); | |
| } | |
| } | |
| return hrgn; | |
| } | |
| /*********************************************************************** | |
| * dump_rdw_flags | |
| */ | |
| static void dump_rdw_flags(UINT flags) | |
| { | |
| TRACE("flags:"); | |
| if (flags & RDW_INVALIDATE) TRACE(" RDW_INVALIDATE"); | |
| if (flags & RDW_INTERNALPAINT) TRACE(" RDW_INTERNALPAINT"); | |
| if (flags & RDW_ERASE) TRACE(" RDW_ERASE"); | |
| if (flags & RDW_VALIDATE) TRACE(" RDW_VALIDATE"); | |
| if (flags & RDW_NOINTERNALPAINT) TRACE(" RDW_NOINTERNALPAINT"); | |
| if (flags & RDW_NOERASE) TRACE(" RDW_NOERASE"); | |
| if (flags & RDW_NOCHILDREN) TRACE(" RDW_NOCHILDREN"); | |
| if (flags & RDW_ALLCHILDREN) TRACE(" RDW_ALLCHILDREN"); | |
| if (flags & RDW_UPDATENOW) TRACE(" RDW_UPDATENOW"); | |
| if (flags & RDW_ERASENOW) TRACE(" RDW_ERASENOW"); | |
| if (flags & RDW_FRAME) TRACE(" RDW_FRAME"); | |
| if (flags & RDW_NOFRAME) TRACE(" RDW_NOFRAME"); | |
| #define RDW_FLAGS \ | |
| (RDW_INVALIDATE | \ | |
| RDW_INTERNALPAINT | \ | |
| RDW_ERASE | \ | |
| RDW_VALIDATE | \ | |
| RDW_NOINTERNALPAINT | \ | |
| RDW_NOERASE | \ | |
| RDW_NOCHILDREN | \ | |
| RDW_ALLCHILDREN | \ | |
| RDW_UPDATENOW | \ | |
| RDW_ERASENOW | \ | |
| RDW_FRAME | \ | |
| RDW_NOFRAME) | |
| if (flags & ~RDW_FLAGS) TRACE(" %04x", flags & ~RDW_FLAGS); | |
| TRACE("\n"); | |
| #undef RDW_FLAGS | |
| } | |
| /*********************************************************************** | |
| * RedrawWindow (USER32.@) | |
| */ | |
| BOOL WINAPI RedrawWindow( HWND hwnd, const RECT *rectUpdate, | |
| HRGN hrgnUpdate, UINT flags ) | |
| { | |
| HRGN hRgn = 0; | |
| RECT r, r2; | |
| POINT pt; | |
| WND* wndPtr; | |
| if (!hwnd) hwnd = GetDesktopWindow(); | |
| /* check if the window or its parents are visible/not minimized */ | |
| if (!WIN_IsWindowDrawable( hwnd, !(flags & RDW_FRAME) )) return TRUE; | |
| /* process pending events and messages before painting */ | |
| if (flags & RDW_UPDATENOW) | |
| MsgWaitForMultipleObjects( 0, NULL, FALSE, 0, QS_ALLINPUT ); | |
| if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; | |
| if (TRACE_ON(win)) | |
| { | |
| if( hrgnUpdate ) | |
| { | |
| GetRgnBox( hrgnUpdate, &r ); | |
| TRACE( "%p (%p) NULL %p box (%ld,%ld-%ld,%ld) flags=%04x\n", | |
| hwnd, wndPtr->hrgnUpdate, hrgnUpdate, r.left, r.top, r.right, r.bottom, flags ); | |
| } | |
| else | |
| { | |
| if( rectUpdate ) | |
| r = *rectUpdate; | |
| else | |
| SetRectEmpty( &r ); | |
| TRACE( "%p (%p) %s %ld,%ld-%ld,%ld %p flags=%04x\n", | |
| hwnd, wndPtr->hrgnUpdate, rectUpdate ? "rect" : "NULL", r.left, | |
| r.top, r.right, r.bottom, hrgnUpdate, flags ); | |
| } | |
| dump_rdw_flags(flags); | |
| } | |
| /* prepare an update region in window coordinates */ | |
| if (((flags & (RDW_INVALIDATE|RDW_FRAME)) == (RDW_INVALIDATE|RDW_FRAME)) || | |
| ((flags & (RDW_VALIDATE|RDW_NOFRAME)) == (RDW_VALIDATE|RDW_NOFRAME))) | |
| r = wndPtr->rectWindow; | |
| else | |
| r = wndPtr->rectClient; | |
| pt.x = wndPtr->rectClient.left - wndPtr->rectWindow.left; | |
| pt.y = wndPtr->rectClient.top - wndPtr->rectWindow.top; | |
| OffsetRect( &r, -wndPtr->rectClient.left, -wndPtr->rectClient.top ); | |
| if (flags & RDW_INVALIDATE) /* ------------------------- Invalidate */ | |
| { | |
| /* If the window doesn't have hrgnUpdate we leave hRgn zero | |
| * and put a new region straight into wndPtr->hrgnUpdate | |
| * so that RDW_UpdateRgns() won't have to do any extra work. | |
| */ | |
| if( hrgnUpdate ) | |
| { | |
| if( wndPtr->hrgnUpdate ) | |
| { | |
| hRgn = CreateRectRgn( 0, 0, 0, 0 ); | |
| CombineRgn( hRgn, hrgnUpdate, 0, RGN_COPY ); | |
| OffsetRgn( hRgn, pt.x, pt.y ); | |
| } | |
| else | |
| { | |
| wndPtr->hrgnUpdate = crop_rgn( 0, hrgnUpdate, &r ); | |
| OffsetRgn( wndPtr->hrgnUpdate, pt.x, pt.y ); | |
| } | |
| } | |
| else if( rectUpdate ) | |
| { | |
| if( !IntersectRect( &r2, &r, rectUpdate ) ) goto END; | |
| OffsetRect( &r2, pt.x, pt.y ); | |
| if( wndPtr->hrgnUpdate == 0 ) | |
| wndPtr->hrgnUpdate = CreateRectRgnIndirect( &r2 ); | |
| else | |
| hRgn = CreateRectRgnIndirect( &r2 ); | |
| } | |
| else /* entire window or client depending on RDW_FRAME */ | |
| { | |
| if( flags & RDW_FRAME ) | |
| { | |
| if (wndPtr->hrgnUpdate) hRgn = (HRGN)1; | |
| else wndPtr->hrgnUpdate = (HRGN)1; | |
| } | |
| else | |
| { | |
| GETCLIENTRECTW( wndPtr, r2 ); | |
| if( wndPtr->hrgnUpdate == 0 ) | |
| wndPtr->hrgnUpdate = CreateRectRgnIndirect( &r2 ); | |
| else | |
| hRgn = CreateRectRgnIndirect( &r2 ); | |
| } | |
| } | |
| } | |
| else if (flags & RDW_VALIDATE) /* ------------------------- Validate */ | |
| { | |
| /* In this we cannot leave with zero hRgn */ | |
| if( hrgnUpdate ) | |
| { | |
| hRgn = crop_rgn( hRgn, hrgnUpdate, &r ); | |
| OffsetRgn( hRgn, pt.x, pt.y ); | |
| GetRgnBox( hRgn, &r2 ); | |
| if( IsRectEmpty( &r2 ) ) goto END; | |
| } | |
| else if( rectUpdate ) | |
| { | |
| if( !IntersectRect( &r2, &r, rectUpdate ) ) goto END; | |
| OffsetRect( &r2, pt.x, pt.y ); | |
| hRgn = CreateRectRgnIndirect( &r2 ); | |
| } | |
| else /* entire window or client depending on RDW_NOFRAME */ | |
| { | |
| if( flags & RDW_NOFRAME ) | |
| hRgn = (HRGN)1; | |
| else | |
| { | |
| GETCLIENTRECTW( wndPtr, r2 ); | |
| hRgn = CreateRectRgnIndirect( &r2 ); | |
| } | |
| } | |
| } | |
| /* At this point hRgn is either an update region in window coordinates or 1 or 0 */ | |
| RDW_UpdateRgns( wndPtr, hRgn, flags, TRUE ); | |
| /* Erase/update windows, from now on hRgn is a scratch region */ | |
| hRgn = RDW_Paint( wndPtr, (hRgn == (HRGN)1) ? 0 : hRgn, flags, 0 ); | |
| END: | |
| if( hRgn > (HRGN)1 && (hRgn != hrgnUpdate) ) | |
| DeleteObject(hRgn ); | |
| WIN_ReleaseWndPtr(wndPtr); | |
| return TRUE; | |
| } | |
| /*********************************************************************** | |
| * UpdateWindow (USER32.@) | |
| */ | |
| BOOL WINAPI UpdateWindow( HWND hwnd ) | |
| { | |
| return RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_ALLCHILDREN ); | |
| } | |
| /*********************************************************************** | |
| * InvalidateRgn (USER32.@) | |
| */ | |
| BOOL WINAPI InvalidateRgn( HWND hwnd, HRGN hrgn, BOOL erase ) | |
| { | |
| return RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) ); | |
| } | |
| /*********************************************************************** | |
| * InvalidateRect (USER32.@) | |
| */ | |
| BOOL WINAPI InvalidateRect( HWND hwnd, const RECT *rect, BOOL erase ) | |
| { | |
| return RedrawWindow( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) ); | |
| } | |
| /*********************************************************************** | |
| * ValidateRgn (USER32.@) | |
| */ | |
| BOOL WINAPI ValidateRgn( HWND hwnd, HRGN hrgn ) | |
| { | |
| return RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN ); | |
| } | |
| /*********************************************************************** | |
| * ValidateRect (USER32.@) | |
| */ | |
| BOOL WINAPI ValidateRect( HWND hwnd, const RECT *rect ) | |
| { | |
| return RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN ); | |
| } | |
| /*********************************************************************** | |
| * SelectPalette (Not a Windows API) | |
| */ | |
| HPALETTE WINAPI SelectPalette( HDC hDC, HPALETTE hPal, BOOL bForceBackground ) | |
| { | |
| WORD wBkgPalette = 1; | |
| if (!bForceBackground && (hPal != GetStockObject(DEFAULT_PALETTE))) | |
| { | |
| HWND hwnd = WindowFromDC( hDC ); | |
| if (hwnd) | |
| { | |
| HWND hForeground = GetForegroundWindow(); | |
| /* set primary palette if it's related to current active */ | |
| if (hForeground == hwnd || IsChild(hForeground,hwnd)) wBkgPalette = 0; | |
| } | |
| } | |
| return pfnGDISelectPalette( hDC, hPal, wBkgPalette); | |
| } | |
| /*********************************************************************** | |
| * UserRealizePalette (USER32.@) | |
| */ | |
| UINT WINAPI UserRealizePalette( HDC hDC ) | |
| { | |
| UINT realized = pfnGDIRealizePalette( hDC ); | |
| /* do not send anything if no colors were changed */ | |
| if (realized && IsDCCurrentPalette16( HDC_16(hDC) )) | |
| { | |
| /* send palette change notification */ | |
| HWND hWnd = WindowFromDC( hDC ); | |
| if (hWnd) SendMessageTimeoutW( HWND_BROADCAST, WM_PALETTECHANGED, (WPARAM)hWnd, 0, | |
| SMTO_ABORTIFHUNG, 2000, NULL ); | |
| } | |
| return realized; | |
| } |