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git://source.winehq.org/git/wine.git
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980 lines
30 KiB
C
980 lines
30 KiB
C
/*
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* Window painting functions
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*
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* Copyright 1993, 1994, 1995 Alexandre Julliard
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* 1999 Alex Korobka
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdarg.h>
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#include <string.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "wine/winuser16.h"
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#include "wownt32.h"
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#include "wine/unicode.h"
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#include "wine/server.h"
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#include "user.h"
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#include "win.h"
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#include "message.h"
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#include "dce.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(win);
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WINE_DECLARE_DEBUG_CHANNEL(nonclient);
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/* client rect in window coordinates */
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#define GETCLIENTRECTW( wnd, r ) (r).left = (wnd)->rectClient.left - (wnd)->rectWindow.left; \
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(r).top = (wnd)->rectClient.top - (wnd)->rectWindow.top; \
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(r).right = (wnd)->rectClient.right - (wnd)->rectWindow.left; \
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(r).bottom = (wnd)->rectClient.bottom - (wnd)->rectWindow.top
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/* PAINT_RedrawWindow() control flags */
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#define RDW_EX_DELAY_NCPAINT 0x0020
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/* WIN_UpdateNCRgn() flags */
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#define UNC_CHECK 0x0001
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#define UNC_ENTIRE 0x0002
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#define UNC_REGION 0x0004
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#define UNC_UPDATE 0x0008
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#define UNC_DELAY_NCPAINT 0x0010
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#define UNC_IN_BEGINPAINT 0x0020
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HPALETTE (WINAPI *pfnGDISelectPalette)(HDC hdc, HPALETTE hpal, WORD bkgnd ) = NULL;
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UINT (WINAPI *pfnGDIRealizePalette)(HDC hdc) = NULL;
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/***********************************************************************
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* add_paint_count
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*
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* Add an increment (normally 1 or -1) to the current paint count of a window.
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*/
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static void add_paint_count( HWND hwnd, int incr )
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{
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SERVER_START_REQ( inc_window_paint_count )
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{
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req->handle = hwnd;
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req->incr = incr;
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wine_server_call( req );
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}
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SERVER_END_REQ;
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}
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/***********************************************************************
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* crop_rgn
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*
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* hSrc: Region to crop.
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* lpRect: Clipping rectangle.
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*
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* hDst: Region to hold the result (a new region is created if it's 0).
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* Allowed to be the same region as hSrc in which case everything
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* will be done in place, with no memory reallocations.
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*
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* Returns: hDst if success, 0 otherwise.
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*/
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static HRGN crop_rgn( HRGN hDst, HRGN hSrc, const RECT *rect )
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{
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HRGN h = CreateRectRgnIndirect( rect );
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if (hDst == 0) hDst = h;
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CombineRgn( hDst, hSrc, h, RGN_AND );
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if (hDst != h) DeleteObject( h );
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return hDst;
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}
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/***********************************************************************
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* WIN_HaveToDelayNCPAINT
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*
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* Currently, in the Wine painting mechanism, the WM_NCPAINT message
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* is generated as soon as a region intersecting the non-client area
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* of a window is invalidated.
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*
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* This technique will work fine for all windows whose parents
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* have the WS_CLIPCHILDREN style. When the parents have that style,
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* they are not going to override the contents of their children.
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* However, when the parent doesn't have that style, Windows relies
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* on a "painter's algorithm" to display the contents of the windows.
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* That is, windows are painted from back to front. This includes the
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* non-client area.
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*
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* This method looks at the current state of a window to determine
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* if the sending of the WM_NCPAINT message should be delayed until
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* the BeginPaint call.
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*
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* PARAMS:
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* wndPtr - A Locked window pointer to the window we're
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* examining.
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* uncFlags - This is the flag passed to the WIN_UpdateNCRgn
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* function. This is a shortcut for the cases when
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* we already know when to avoid scanning all the
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* parents of a window. If you already know that this
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* window's NCPAINT should be delayed, set the
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* UNC_DELAY_NCPAINT flag for this parameter.
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*
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* This shortcut behavior is implemented in the
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* RDW_Paint() method.
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*
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*/
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static BOOL WIN_HaveToDelayNCPAINT( HWND hwnd, UINT uncFlags)
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{
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/*
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* Test the shortcut first. (duh)
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*/
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if (uncFlags & UNC_DELAY_NCPAINT)
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return TRUE;
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/*
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* The UNC_IN_BEGINPAINT flag is set in the BeginPaint
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* method only. This is another shortcut to avoid going
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* up the parent's chain of the window to finally
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* figure-out that none of them has an invalid region.
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*/
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if (uncFlags & UNC_IN_BEGINPAINT)
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return FALSE;
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/*
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* Scan all the parents of this window to find a window
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* that doesn't have the WS_CLIPCHILDREN style and that
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* has an invalid region.
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*/
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while ((hwnd = GetAncestor( hwnd, GA_PARENT )))
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{
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WND* parentWnd = WIN_FindWndPtr( hwnd );
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if (parentWnd && !(parentWnd->dwStyle & WS_CLIPCHILDREN) && parentWnd->hrgnUpdate)
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{
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WIN_ReleaseWndPtr( parentWnd );
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return TRUE;
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}
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WIN_ReleaseWndPtr( parentWnd );
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}
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return FALSE;
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}
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/***********************************************************************
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* WIN_UpdateNCRgn
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*
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* Things to do:
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* Send WM_NCPAINT if required (when nonclient is invalid or UNC_ENTIRE flag is set)
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* Crop hrgnUpdate to a client rect, especially if it 1.
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* If UNC_REGION is set return update region for the client rect.
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*
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* NOTE: UNC_REGION is mainly for the RDW_Paint() chunk that sends WM_ERASEBKGND message.
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* The trick is that when the returned region handle may be different from hRgn.
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* In this case the old hRgn must be considered gone. BUT, if the returned value
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* is 1 then the hRgn is preserved and RDW_Paint() will have to get
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* a DC without extra clipping region.
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*/
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static HRGN WIN_UpdateNCRgn(WND* wnd, HRGN hRgn, UINT uncFlags )
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{
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RECT r;
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HRGN hClip = 0;
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HRGN hrgnRet = 0;
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TRACE_(nonclient)("hwnd %p [%p] hrgn %p, unc %04x, ncf %i\n",
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wnd->hwndSelf, wnd->hrgnUpdate, hRgn, uncFlags, wnd->flags & WIN_NEEDS_NCPAINT);
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/* desktop window doesn't have a nonclient area */
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if(wnd->hwndSelf == GetDesktopWindow())
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{
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wnd->flags &= ~WIN_NEEDS_NCPAINT;
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if( wnd->hrgnUpdate > (HRGN)1 )
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{
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if (!hRgn) hRgn = CreateRectRgn( 0, 0, 0, 0 );
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CombineRgn( hRgn, wnd->hrgnUpdate, 0, RGN_COPY );
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hrgnRet = hRgn;
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}
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else
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{
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hrgnRet = wnd->hrgnUpdate;
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}
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return hrgnRet;
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}
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if ((wnd->hwndSelf == GetForegroundWindow()) &&
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!(wnd->flags & WIN_NCACTIVATED) )
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{
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wnd->flags |= WIN_NCACTIVATED;
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uncFlags |= UNC_ENTIRE;
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}
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/*
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* If the window's non-client area needs to be painted,
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*/
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if ( ( wnd->flags & WIN_NEEDS_NCPAINT ) &&
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!WIN_HaveToDelayNCPAINT(wnd->hwndSelf, uncFlags) )
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{
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RECT r2, r3;
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wnd->flags &= ~WIN_NEEDS_NCPAINT;
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GETCLIENTRECTW( wnd, r );
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TRACE_(nonclient)( "\tclient box (%ld,%ld-%ld,%ld), hrgnUpdate %p\n",
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r.left, r.top, r.right, r.bottom, wnd->hrgnUpdate );
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if( wnd->hrgnUpdate > (HRGN)1 )
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{
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/* Check if update rgn overlaps with nonclient area */
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GetRgnBox( wnd->hrgnUpdate, &r2 );
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UnionRect( &r3, &r2, &r );
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if( r3.left != r.left || r3.top != r.top ||
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r3.right != r.right || r3.bottom != r.bottom ) /* it does */
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{
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/* crop hrgnUpdate, save old one in hClip - the only
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* case that places a valid region handle in hClip */
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hClip = wnd->hrgnUpdate;
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wnd->hrgnUpdate = crop_rgn( hRgn, hClip, &r );
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if( uncFlags & UNC_REGION ) hrgnRet = hClip;
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}
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if( uncFlags & UNC_CHECK )
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{
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GetRgnBox( wnd->hrgnUpdate, &r3 );
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if( IsRectEmpty( &r3 ) )
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{
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/* delete the update region since all invalid
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* parts were in the nonclient area */
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DeleteObject( wnd->hrgnUpdate );
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wnd->hrgnUpdate = 0;
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if(!(wnd->flags & WIN_INTERNAL_PAINT))
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add_paint_count( wnd->hwndSelf, -1 );
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wnd->flags &= ~WIN_NEEDS_ERASEBKGND;
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}
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}
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if(!hClip && wnd->hrgnUpdate ) goto copyrgn;
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}
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else
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if( wnd->hrgnUpdate == (HRGN)1 )/* entire window */
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{
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if( uncFlags & UNC_UPDATE ) wnd->hrgnUpdate = CreateRectRgnIndirect( &r );
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if( uncFlags & UNC_REGION ) hrgnRet = (HRGN)1;
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uncFlags |= UNC_ENTIRE;
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}
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}
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else /* no WM_NCPAINT unless forced */
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{
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if( wnd->hrgnUpdate > (HRGN)1 )
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{
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copyrgn:
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if( uncFlags & UNC_REGION )
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{
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if (!hRgn) hRgn = CreateRectRgn( 0, 0, 0, 0 );
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CombineRgn( hRgn, wnd->hrgnUpdate, 0, RGN_COPY );
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hrgnRet = hRgn;
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}
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}
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else
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if( wnd->hrgnUpdate == (HRGN)1 && (uncFlags & UNC_UPDATE) )
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{
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GETCLIENTRECTW( wnd, r );
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wnd->hrgnUpdate = CreateRectRgnIndirect( &r );
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if( uncFlags & UNC_REGION ) hrgnRet = (HRGN)1;
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}
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}
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if(!hClip && (uncFlags & UNC_ENTIRE) )
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{
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/* still don't do anything if there is no nonclient area */
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hClip = (HRGN)(memcmp( &wnd->rectWindow, &wnd->rectClient, sizeof(RECT) ) != 0);
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}
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if( hClip ) /* NOTE: WM_NCPAINT allows wParam to be 1 */
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{
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if ( hClip == hrgnRet && hrgnRet > (HRGN)1 ) {
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hClip = CreateRectRgn( 0, 0, 0, 0 );
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CombineRgn( hClip, hrgnRet, 0, RGN_COPY );
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}
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SendMessageA( wnd->hwndSelf, WM_NCPAINT, (WPARAM)hClip, 0L );
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if( (hClip > (HRGN)1) && (hClip != hRgn) && (hClip != hrgnRet) )
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DeleteObject( hClip );
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/*
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* Since all Window locks are suspended while processing the WM_NCPAINT
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* we want to make sure the window still exists before continuing.
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*/
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if (!IsWindow(wnd->hwndSelf))
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{
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DeleteObject(hrgnRet);
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hrgnRet=0;
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}
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}
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TRACE_(nonclient)("returning %p (hClip = %p, hrgnUpdate = %p)\n", hrgnRet, hClip, wnd->hrgnUpdate );
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return hrgnRet;
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}
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/***********************************************************************
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* RDW_ValidateParent [RDW_UpdateRgns() helper]
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*
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* Validate the portions of parents that are covered by a validated child
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* wndPtr = child
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*/
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static void RDW_ValidateParent(WND *wndChild)
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{
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HWND parent;
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HRGN hrg;
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if (wndChild->hrgnUpdate == (HRGN)1 ) {
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RECT r;
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r.left = 0;
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r.top = 0;
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r.right = wndChild->rectWindow.right - wndChild->rectWindow.left;
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r.bottom = wndChild->rectWindow.bottom - wndChild->rectWindow.top;
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hrg = CreateRectRgnIndirect( &r );
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} else
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hrg = wndChild->hrgnUpdate;
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parent = GetAncestor( wndChild->hwndSelf, GA_PARENT );
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while (parent && parent != GetDesktopWindow())
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{
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WND *wndParent = WIN_FindWndPtr( parent );
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if (wndParent && !(wndParent->dwStyle & WS_CLIPCHILDREN))
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{
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if (wndParent->hrgnUpdate != 0)
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{
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POINT ptOffset;
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RECT rect, rectParent;
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if( wndParent->hrgnUpdate == (HRGN)1 )
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{
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RECT r;
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r.left = 0;
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r.top = 0;
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r.right = wndParent->rectWindow.right - wndParent->rectWindow.left;
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r.bottom = wndParent->rectWindow.bottom - wndParent->rectWindow.top;
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wndParent->hrgnUpdate = CreateRectRgnIndirect( &r );
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}
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/* we must offset the child region by the offset of the child rect in the parent */
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GetWindowRect(wndParent->hwndSelf, &rectParent);
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GetWindowRect(wndChild->hwndSelf, &rect);
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ptOffset.x = rect.left - rectParent.left;
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ptOffset.y = rect.top - rectParent.top;
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OffsetRgn( hrg, ptOffset.x, ptOffset.y );
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if (CombineRgn( wndParent->hrgnUpdate, wndParent->hrgnUpdate, hrg, RGN_DIFF ) == NULLREGION)
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{
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/* the update region has become empty */
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DeleteObject( wndParent->hrgnUpdate );
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wndParent->hrgnUpdate = 0;
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wndParent->flags &= ~WIN_NEEDS_ERASEBKGND;
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if( !(wndParent->flags & WIN_INTERNAL_PAINT) )
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add_paint_count( wndParent->hwndSelf, -1 );
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}
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OffsetRgn( hrg, -ptOffset.x, -ptOffset.y );
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}
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}
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WIN_ReleaseWndPtr( wndParent );
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parent = GetAncestor( parent, GA_PARENT );
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}
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if (hrg != wndChild->hrgnUpdate) DeleteObject( hrg );
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}
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/***********************************************************************
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* RDW_UpdateRgns [RedrawWindow() helper]
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*
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* Walks the window tree and adds/removes parts of the hRgn to/from update
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* regions of windows that overlap it. Also, manages internal paint flags.
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*
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* NOTE: Walks the window tree so the caller must lock it.
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* MUST preserve hRgn (can modify but then has to restore).
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*/
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static void RDW_UpdateRgns( WND* wndPtr, HRGN hRgn, UINT flags, BOOL firstRecursLevel )
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{
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/*
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* Called only when one of the following is set:
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* (RDW_INVALIDATE | RDW_VALIDATE | RDW_INTERNALPAINT | RDW_NOINTERNALPAINT)
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*/
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BOOL bHadOne = wndPtr->hrgnUpdate && hRgn;
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BOOL bChildren = (!(flags & RDW_NOCHILDREN) && !(wndPtr->dwStyle & WS_MINIMIZE) &&
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((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) );
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RECT r;
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r.left = 0;
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r.top = 0;
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r.right = wndPtr->rectWindow.right - wndPtr->rectWindow.left;
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r.bottom = wndPtr->rectWindow.bottom - wndPtr->rectWindow.top;
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TRACE("\thwnd %p [%p] -> hrgn [%p], flags [%04x]\n", wndPtr->hwndSelf, wndPtr->hrgnUpdate, hRgn, flags );
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if( flags & RDW_INVALIDATE )
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{
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if( hRgn > (HRGN)1 )
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{
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switch ((UINT)wndPtr->hrgnUpdate)
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{
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default:
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CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, hRgn, RGN_OR );
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/* fall through */
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case 0:
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wndPtr->hrgnUpdate = crop_rgn( wndPtr->hrgnUpdate,
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wndPtr->hrgnUpdate ? wndPtr->hrgnUpdate : hRgn,
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&r );
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if( !bHadOne )
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{
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GetRgnBox( wndPtr->hrgnUpdate, &r );
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if( IsRectEmpty( &r ) )
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{
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DeleteObject( wndPtr->hrgnUpdate );
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wndPtr->hrgnUpdate = 0;
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goto end;
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}
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}
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break;
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case 1: /* already an entire window */
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break;
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}
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}
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else if( hRgn == (HRGN)1 )
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{
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if( wndPtr->hrgnUpdate > (HRGN)1 )
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DeleteObject( wndPtr->hrgnUpdate );
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wndPtr->hrgnUpdate = (HRGN)1;
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}
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else
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{
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/* hRgn is zero */
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if( wndPtr->hrgnUpdate > (HRGN)1)
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{
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GetRgnBox( wndPtr->hrgnUpdate, &r );
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if( IsRectEmpty( &r ) )
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{
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DeleteObject( wndPtr->hrgnUpdate );
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wndPtr->hrgnUpdate = 0;
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goto end;
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}
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}
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hRgn = wndPtr->hrgnUpdate; /* this is a trick that depends
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* on code in RDW_Paint() */
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}
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if( !bHadOne && !(wndPtr->flags & WIN_INTERNAL_PAINT) )
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add_paint_count( wndPtr->hwndSelf, 1 );
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|
|
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) /* wm_painticon wparam is 1 */
|
|
SendMessageW( hWnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 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, (bIcon) ? WM_ICONERASEBKGND : 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;
|
|
}
|