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/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "UBMousePressFilter.h"
#include "core/memcheck.h"
UBMousePressFilter::UBMousePressFilter(QObject* parent)
: QObject(parent)
, mPendingEvent(0)
{
// NOOP
}
UBMousePressFilter::~UBMousePressFilter()
{
// NOOP
}
bool UBMousePressFilter::eventFilter(QObject *obj, QEvent *event)
{
const bool isMousePress = event->type() == QEvent::MouseButtonPress;
const bool isMouseRelease = event->type() == QEvent::MouseButtonRelease;
const bool isMouseMove = event->type() == QEvent::MouseMove;
if (isMousePress)
{
QMouseEvent * mouseEvent = static_cast<QMouseEvent *>(event);
if (mouseEvent)
{
if (mPendingEvent)
{
delete mPendingEvent;
}
mPendingEvent = new QMouseEvent(QEvent::MouseButtonDblClick,
mouseEvent->pos(), mouseEvent->globalPos(),
mouseEvent->button(), mouseEvent->buttons(),
mouseEvent->modifiers());
mObject = obj;
QTimer::singleShot(1000, this, SLOT(mouseDownElapsed()));
}
}
else if (isMouseRelease || isMouseMove)
{
if (mPendingEvent)
{
QTabletEvent * tabletEvent = static_cast<QTabletEvent *>(event);
QPoint point = tabletEvent->globalPos() - mPendingEvent->globalPos();
if (isMouseRelease || point.manhattanLength() > QApplication::startDragDistance())
{
delete mPendingEvent;
mPendingEvent = 0;
mObject = 0;
}
}
}
return false;
}
void UBMousePressFilter::mouseDownElapsed()
{
if (mPendingEvent && mObject)
{
QApplication::postEvent(mObject, mPendingEvent);
mPendingEvent = 0;
mObject = 0;
}
}