b44580f02e
Instead of scheduling and gathering the Workspace::addRepaint calls at the end of the main loop we directly emit the signal which ends up in a call to addRepaint. The compositeTimer assures that the higher number of scheduled repaints are executed in the same rendering pass.
143 lines
4.3 KiB
C++
143 lines
4.3 KiB
C++
/*****************************************************************
|
|
This file is part of the KDE project.
|
|
|
|
Copyright (C) 2009 Lubos Lunak <l.lunak@kde.org>
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a
|
|
copy of this software and associated documentation files (the "Software"),
|
|
to deal in the Software without restriction, including without limitation
|
|
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
and/or sell copies of the Software, and to permit persons to whom the
|
|
Software is furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
DEALINGS IN THE SOFTWARE.
|
|
******************************************************************/
|
|
|
|
#include "paintredirector.h"
|
|
|
|
#include <kdebug.h>
|
|
#include <qevent.h>
|
|
#include <qpainter.h>
|
|
#include <qmath.h>
|
|
#include "utils.h"
|
|
|
|
namespace KWin
|
|
{
|
|
|
|
PaintRedirector::PaintRedirector(QWidget* w)
|
|
: widget(w)
|
|
, recursionCheck(false)
|
|
{
|
|
added(w);
|
|
}
|
|
|
|
QPixmap PaintRedirector::performPendingPaint()
|
|
{
|
|
//qDebug() << "### performing paint, pending:" << pending.boundingRect();
|
|
const QSize size = pending.boundingRect().size();
|
|
if (scratch.width() < size.width() || scratch.height() < size.height()) {
|
|
int w = (size.width() + 128) & ~128;
|
|
int h = (size.height() + 128) & ~128;
|
|
scratch = QPixmap(qMax(scratch.width(), w), qMax(scratch.height(), h));
|
|
}
|
|
scratch.fill(Qt::transparent);
|
|
recursionCheck = true;
|
|
// do not use DrawWindowBackground, it's ok to be transparent
|
|
widget->render(&scratch, QPoint(), pending.boundingRect(), QWidget::DrawChildren);
|
|
recursionCheck = false;
|
|
pending = QRegion();
|
|
scheduled = QRegion();
|
|
cleanupTimer.start(2000, this);
|
|
return scratch;
|
|
}
|
|
|
|
bool PaintRedirector::isToolTip(QWidget *object) const
|
|
{
|
|
// ### We need a more reliable way of doing this
|
|
return object->windowFlags() & Qt::ToolTip;
|
|
}
|
|
|
|
bool PaintRedirector::eventFilter(QObject* o, QEvent* e)
|
|
{
|
|
switch(e->type()) {
|
|
case QEvent::ChildAdded: {
|
|
QChildEvent* c = static_cast< QChildEvent* >(e);
|
|
if (c->child()->isWidgetType() && !isToolTip(static_cast< QWidget* >(c->child())))
|
|
added(static_cast< QWidget* >(c->child()));
|
|
break;
|
|
}
|
|
case QEvent::ChildRemoved: {
|
|
QChildEvent* c = static_cast< QChildEvent* >(e);
|
|
if (c->child()->isWidgetType())
|
|
removed(static_cast< QWidget* >(c->child()));
|
|
break;
|
|
}
|
|
case QEvent::Paint: {
|
|
if (!compositing()) {
|
|
return false;
|
|
}
|
|
if (!recursionCheck) {
|
|
QPaintEvent* pe = static_cast< QPaintEvent* >(e);
|
|
QWidget* w = static_cast< QWidget* >(o);
|
|
pending |= pe->region().translated(w->mapTo(widget, QPoint(0, 0)));
|
|
scheduled = pending;
|
|
emit paintPending();
|
|
return true; // filter out
|
|
}
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
QRegion PaintRedirector::pendingRegion() const
|
|
{
|
|
return pending;
|
|
}
|
|
|
|
QRegion PaintRedirector::scheduledRepaintRegion()
|
|
{
|
|
QRegion tempRegion = scheduled;
|
|
scheduled = QRegion();
|
|
return tempRegion;
|
|
}
|
|
|
|
void PaintRedirector::added(QWidget* w)
|
|
{
|
|
w->installEventFilter(this);
|
|
foreach (QObject * o, w->children()) {
|
|
if (o->isWidgetType() && !isToolTip(static_cast< QWidget* >(o)))
|
|
added(static_cast< QWidget* >(o));
|
|
}
|
|
}
|
|
|
|
void PaintRedirector::removed(QWidget* w)
|
|
{
|
|
foreach (QObject * o, w->children()) {
|
|
if (o->isWidgetType())
|
|
removed(static_cast< QWidget* >(o));
|
|
}
|
|
w->installEventFilter(this);
|
|
}
|
|
|
|
void PaintRedirector::timerEvent(QTimerEvent* event)
|
|
{
|
|
if (event->timerId() == cleanupTimer.timerId()) {
|
|
cleanupTimer.stop();
|
|
scratch = QPixmap();
|
|
}
|
|
}
|
|
|
|
} // namespace
|
|
|
|
#include "paintredirector.moc"
|