| /* |
| * 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; |
| } |
