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/*
Copyright (C) 2010 George Kiagiadakis <kiagiadakis.george@gmail.com>
Copyright (C) 2012 Collabora Ltd. <info@collabora.com>
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 program 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 program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "qwidgetvideosinkdelegate.h"
#include <QPainter>
QWidgetVideoSinkDelegate::QWidgetVideoSinkDelegate(GstQtVideoSinkBase* sink, QObject* parent)
: QtVideoSinkDelegate(sink, parent)
{
}
QWidgetVideoSinkDelegate::~QWidgetVideoSinkDelegate()
{
setWidget(NULL);
}
QWidget *QWidgetVideoSinkDelegate::widget() const
{
return m_widget.data();
}
void QWidgetVideoSinkDelegate::setWidget(QWidget *widget)
{
GST_LOG_OBJECT(m_sink, "Setting \"widget\" property to %"GST_PTR_FORMAT, widget);
if (m_widget) {
m_widget.data()->removeEventFilter(this);
m_widget.data()->setAttribute(Qt::WA_OpaquePaintEvent, m_opaquePaintEventAttribute);
m_widget.data()->update();
m_widget = NULL;
}
if (widget) {
widget->installEventFilter(this);
m_opaquePaintEventAttribute = widget->testAttribute(Qt::WA_OpaquePaintEvent);
widget->setAttribute(Qt::WA_OpaquePaintEvent, true);
widget->update();
m_widget = widget;
}
}
bool QWidgetVideoSinkDelegate::eventFilter(QObject *filteredObject, QEvent *event)
{
if (filteredObject == m_widget.data()) {
switch(event->type()) {
case QEvent::Paint:
{
QPainter painter(m_widget.data());
paint(&painter, m_widget.data()->rect());
return true;
}
default:
return false;
}
} else {
return QtVideoSinkDelegate::eventFilter(filteredObject, event);
}
}
void QWidgetVideoSinkDelegate::update()
{
if (m_widget) {
m_widget.data()->update();
}
}
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