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Port eventFilter to Qt5/QtQuick2

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Now all events already caught by children also propagate into the
MouseEventListener, making it work completely as it should (tested).
This commit is contained in:
Sebastian Kügler 2013-02-15 16:32:55 +01:00
parent 672b0bdfc1
commit bb32d5b080
2 changed files with 59 additions and 57 deletions
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114
src/declarativeimports/qtextracomponents/mouseeventlistener.cpp
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@ -165,62 +165,64 @@ QPointF MouseEventListener::buttonDownPos(int btn) const
// bool MouseEventListener::sceneEventFilter(QGraphicsItem *item, QEvent *event)
// {
// if (!isEnabled()) {
// return false;
// }
//
// m_lastEvent = event;
//
// switch (event->type()) {
// case QEvent::GraphicsSceneMousePress: {
// QMouseEvent *me = static_cast<QMouseEvent *>(event);
// //the parent will receive events in its own coordinates
// const QPointF myPos = item->mapToItem(this, me->pos());
// KDeclarativeMouseEvent dme(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
// m_pressAndHoldEvent = new KDeclarativeMouseEvent(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
// //kDebug() << "pressed in sceneEventFilter";
// emit pressed(&dme);
// m_pressed = true;
//
// m_pressAndHoldTimer->start(PressAndHoldDelay);
// break;
// }
// case QEvent::GraphicsSceneMouseMove: {
// QMouseEvent *me = static_cast<QMouseEvent *>(event);
// const QPointF myPos = item->mapToItem(this, me->pos());
// KDeclarativeMouseEvent dme(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
// //kDebug() << "positionChanged..." << dme.x() << dme.y();
// m_pressAndHoldEvent = new KDeclarativeMouseEvent(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
// emit positionChanged(&dme);
// break;
// }
// case QEvent::GraphicsSceneMouseRelease: {
// QMouseEvent *me = static_cast<QMouseEvent *>(event);
// const QPointF myPos = item->mapToItem(this, me->pos());
// KDeclarativeMouseEvent dme(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
// m_pressed = false;
//
// emit released(&dme);
//
// if (QPointF(me->pos() - buttonDownPos(me->button())).manhattanLength() <= QApplication::startDragDistance() && m_pressAndHoldTimer->isActive()) {
// emit clicked(&dme);
// m_pressAndHoldTimer->stop();
// }
// break;
// }
// case QEvent::GraphicsSceneWheel: {
// QMouseEvent *we = static_cast<QMouseEvent *>(event);
// KDeclarativeWheelEvent dwe(we->pos(), we->screenPos(), we->delta(), we->buttons(), we->modifiers(), we->orientation());
// emit wheelMoved(&dwe);
// break;
// }
// default:
// break;
// }
//
// return QQuickItem::sceneEventFilter(item, event);
// }
bool MouseEventListener::childMouseEventFilter(QQuickItem *item, QEvent *event)
{
if (!isEnabled()) {
return false;
}
m_lastEvent = event;
switch (event->type()) {
case QEvent::MouseButtonPress: {
QMouseEvent *me = static_cast<QMouseEvent *>(event);
//the parent will receive events in its own coordinates
const QPointF myPos = item->mapToItem(this, me->pos());
KDeclarativeMouseEvent dme(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
m_pressAndHoldEvent = new KDeclarativeMouseEvent(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
//kDebug() << "pressed in sceneEventFilter";
emit pressed(&dme);
m_pressed = true;
m_pressAndHoldTimer->start(PressAndHoldDelay);
break;
}
case QEvent::MouseMove: {
QMouseEvent *me = static_cast<QMouseEvent *>(event);
const QPointF myPos = item->mapToItem(this, me->pos());
KDeclarativeMouseEvent dme(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
//kDebug() << "positionChanged..." << dme.x() << dme.y();
m_pressAndHoldEvent = new KDeclarativeMouseEvent(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
emit positionChanged(&dme);
break;
}
case QEvent::MouseButtonRelease: {
QMouseEvent *me = static_cast<QMouseEvent *>(event);
const QPointF myPos = item->mapToItem(this, me->pos());
KDeclarativeMouseEvent dme(myPos.x(), myPos.y(), me->screenPos().x(), me->screenPos().y(), me->button(), me->buttons(), me->modifiers());
m_pressed = false;
emit released(&dme);
if (QPointF(me->pos() - buttonDownPos(me->button())).manhattanLength() <= QApplication::startDragDistance() && m_pressAndHoldTimer->isActive()) {
emit clicked(&dme);
m_pressAndHoldTimer->stop();
}
break;
}
case QEvent::Wheel: {
QWheelEvent *we = static_cast<QWheelEvent *>(event);
KDeclarativeWheelEvent dwe(we->pos(), we->globalPos(), we->delta(), we->buttons(), we->modifiers(), we->orientation());
emit wheelMoved(&dwe);
break;
}
default:
break;
}
return QQuickItem::childMouseEventFilter(item, event);
// return false;
}
#include "mouseeventlistener.moc"

2
src/declarativeimports/qtextracomponents/mouseeventlistener.h
View File

@ -150,7 +150,7 @@ protected:
void mouseMoveEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
void wheelEvent(QWheelEvent *event);
// bool sceneEventFilter(QGraphicsItem *i, QEvent *e);
bool childMouseEventFilter(QQuickItem *item, QEvent *event);
Q_SIGNALS:
void pressed(KDeclarativeMouseEvent *mouse);