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/* This file is part of the KDE project.
Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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 or 3 of the License.
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, see <http://www.gnu.org/licenses/>.
*/
#include "ancestormovemonitor.h"
#include "utils.h"
#include "videooutput.h"
#include "videooutputobserver.h"
#ifndef QT_NO_DEBUG
#include "objectdump.h"
#endif
#include <QPaintEvent>
#include <QPainter>
#include <QMoveEvent>
#include <QResizeEvent>
#include <QtGui/private/qwidget_p.h> // to access QWExtra
QT_BEGIN_NAMESPACE
using namespace Phonon;
using namespace Phonon::MMF;
/*! \class MMF::VideoOutput
\internal
*/
//-----------------------------------------------------------------------------
// Constructor / destructor
//-----------------------------------------------------------------------------
MMF::VideoOutput::VideoOutput
(AncestorMoveMonitor* ancestorMoveMonitor, QWidget* parent)
: QWidget(parent)
, m_ancestorMoveMonitor(ancestorMoveMonitor)
, m_observer(0)
{
TRACE_CONTEXT(VideoOutput::VideoOutput, EVideoInternal);
TRACE_ENTRY("parent 0x%08x", parent);
setPalette(QPalette(Qt::black));
setAttribute(Qt::WA_OpaquePaintEvent, true);
setAttribute(Qt::WA_NoSystemBackground, true);
setAutoFillBackground(false);
// Causes QSymbianControl::Draw not to BitBlt this widget's region of the
// backing store. Since the backing store is (by default) a 16MU bitmap,
// blitting it results in this widget's screen region in the final
// framebuffer having opaque alpha values. This in turn causes the video
// to be invisible when running on the target device.
qt_widget_private(this)->extraData()->disableBlit = true;
registerForAncestorMoved();
dump();
TRACE_EXIT_0();
}
MMF::VideoOutput::~VideoOutput()
{
TRACE_CONTEXT(VideoOutput::~VideoOutput, EVideoInternal);
TRACE_ENTRY_0();
m_ancestorMoveMonitor->unRegisterTarget(this);
TRACE_EXIT_0();
}
void MMF::VideoOutput::setFrameSize(const QSize& frameSize)
{
TRACE_CONTEXT(VideoOutput::setFrameSize, EVideoInternal);
TRACE("oldSize %d %d newSize %d %d",
m_frameSize.width(), m_frameSize.height(),
frameSize.width(), frameSize.height());
if (frameSize != m_frameSize) {
m_frameSize = frameSize;
updateGeometry();
}
}
void MMF::VideoOutput::setObserver(VideoOutputObserver* observer)
{
TRACE_CONTEXT(VideoOutput::setObserver, EVideoInternal);
TRACE("observer 0x%08x", observer);
m_observer = observer;
}
void MMF::VideoOutput::ancestorMoved()
{
TRACE_CONTEXT(VideoOutput::ancestorMoved, EVideoInternal);
TRACE_ENTRY_0();
videoOutputRegionChanged();
TRACE_EXIT_0();
}
//-----------------------------------------------------------------------------
// QWidget
//-----------------------------------------------------------------------------
QSize MMF::VideoOutput::sizeHint() const
{
// TODO: replace this with a more sensible default
QSize result(320, 240);
if (!m_frameSize.isNull()) {
result = m_frameSize;
}
return result;
}
void MMF::VideoOutput::paintEvent(QPaintEvent* event)
{
TRACE_CONTEXT(VideoOutput::paintEvent, EVideoInternal);
TRACE("rect %d %d - %d %d",
event->rect().left(), event->rect().top(),
event->rect().right(), event->rect().bottom());
TRACE("regions %d", event->region().rectCount());
TRACE("type %d", event->type());
// Do nothing
}
void MMF::VideoOutput::resizeEvent(QResizeEvent* event)
{
TRACE_CONTEXT(VideoOutput::resizeEvent, EVideoInternal);
TRACE("%d %d -> %d %d",
event->oldSize().width(), event->oldSize().height(),
event->size().width(), event->size().height());
videoOutputRegionChanged();
}
void MMF::VideoOutput::moveEvent(QMoveEvent* event)
{
TRACE_CONTEXT(VideoOutput::moveEvent, EVideoInternal);
TRACE("%d %d -> %d %d",
event->oldPos().x(), event->oldPos().y(),
event->pos().x(), event->pos().y());
videoOutputRegionChanged();
}
bool MMF::VideoOutput::event(QEvent* event)
{
TRACE_CONTEXT(VideoOutput::event, EVideoInternal);
if (event->type() == QEvent::WinIdChange) {
TRACE_0("WinIdChange");
videoOutputRegionChanged();
return true;
} else if (event->type() == QEvent::ParentChange) {
// Tell ancestor move monitor to update ancestor list for this widget
registerForAncestorMoved();
return true;
} else
return QWidget::event(event);
}
//-----------------------------------------------------------------------------
// Private functions
//-----------------------------------------------------------------------------
void MMF::VideoOutput::videoOutputRegionChanged()
{
dump();
if (m_observer)
m_observer->videoOutputRegionChanged();
}
void MMF::VideoOutput::registerForAncestorMoved()
{
m_ancestorMoveMonitor->registerTarget(this);
}
void MMF::VideoOutput::dump() const
{
#ifndef QT_NO_DEBUG
TRACE_CONTEXT(VideoOutput::dump, EVideoInternal);
QScopedPointer<ObjectDump::QVisitor> visitor(new ObjectDump::QVisitor);
visitor->setPrefix("Phonon::MMF"); // to aid searchability of logs
ObjectDump::addDefaultAnnotators(*visitor);
TRACE("Dumping tree from leaf 0x%08x:", this);
//ObjectDump::dumpAncestors(*this, *visitor);
ObjectDump::dumpTreeFromLeaf(*this, *visitor);
#endif
}
QT_END_NAMESPACE
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