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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <salgdiimpl.hxx>
#include <vcl/sysdata.hxx>
#include <unx/saldisp.hxx>
#include <unx/salgdi.h>
#include <unx/x11/xrender_peer.hxx>
#include <salframe.hxx>
extern "C"
{
static Bool GraphicsExposePredicate( Display*, XEvent* pEvent, const XPointer pFrameWindow )
{
Bool bRet = False;
if( (pEvent->type == GraphicsExpose || pEvent->type == NoExpose) &&
pEvent->xnoexpose.drawable == reinterpret_cast<Drawable>(pFrameWindow) )
{
bRet = True;
}
return bRet;
}
}
void X11SalGraphics::YieldGraphicsExpose()
{
// get frame if necessary
SalFrame* pFrame = m_pFrame;
Display* pDisplay = GetXDisplay();
::Window aWindow = GetDrawable();
if( ! pFrame )
{
for (auto pSalFrame : vcl_sal::getSalDisplay(GetGenericUnixSalData())->getFrames() )
{
const SystemEnvData* pEnvData = pSalFrame->GetSystemData();
if( Drawable(pEnvData->GetWindowHandle(pSalFrame)) == aWindow )
{
pFrame = pSalFrame;
break;
}
}
if( ! pFrame )
return;
}
XEvent aEvent;
while( XCheckTypedWindowEvent( pDisplay, aWindow, Expose, &aEvent ) )
{
SalPaintEvent aPEvt( aEvent.xexpose.x, aEvent.xexpose.y, aEvent.xexpose.width+1, aEvent.xexpose.height+1 );
pFrame->CallCallback( SalEvent::Paint, &aPEvt );
}
do
{
if( ! GetDisplay()->XIfEventWithTimeout( &aEvent, reinterpret_cast<XPointer>(aWindow), GraphicsExposePredicate ) )
// this should not happen at all; still sometimes it happens
break;
if( aEvent.type == NoExpose )
break;
if( pFrame )
{
SalPaintEvent aPEvt( aEvent.xgraphicsexpose.x, aEvent.xgraphicsexpose.y, aEvent.xgraphicsexpose.width+1, aEvent.xgraphicsexpose.height+1 );
pFrame->CallCallback( SalEvent::Paint, &aPEvt );
}
} while( aEvent.xgraphicsexpose.count != 0 );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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