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/*
* Copyright (C) 2012 Webdoc SA
*
* This file is part of Open-Sankoré.
*
* Open-Sankoré is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation, version 2,
* with a specific linking exception for the OpenSSL project's
* "OpenSSL" library (or with modified versions of it that use the
* same license as the "OpenSSL" library).
*
* Open-Sankoré 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with Open-Sankoré; if not, see
* <http://www.gnu.org/licenses/>.
*/
#include "UBWidgetMirror.h"
#include "core/memcheck.h"
UBWidgetMirror::UBWidgetMirror(QWidget* sourceWidget, QWidget* parent)
: QWidget(parent, 0)
, mSourceWidget(sourceWidget)
{
mSourceWidget->installEventFilter(this);
}
UBWidgetMirror::~UBWidgetMirror()
{
// NOOP
}
bool UBWidgetMirror::eventFilter(QObject *obj, QEvent *event)
{
bool result = QObject::eventFilter(obj, event);
if (event->type() == QEvent::Paint && obj == mSourceWidget)
{
QPaintEvent *paintEvent = static_cast<QPaintEvent *>(event);
update(paintEvent->rect());
}
return result;
}
void UBWidgetMirror::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
painter.setBackgroundMode(Qt::OpaqueMode);
painter.setBackground(Qt::black);
mSourceWidget->render(&painter, event->rect().topLeft(), QRegion(event->rect()));
}
void UBWidgetMirror::setSourceWidget(QWidget *sourceWidget)
{
if (mSourceWidget)
{
mSourceWidget->removeEventFilter(this);
}
mSourceWidget = sourceWidget;
mSourceWidget->installEventFilter(this);
update();
}