bool QQuickMouseArea::setPressed(Qt::MouseButton button, bool p)
{
Q_D(QQuickMouseArea);
#ifndef QT_NO_DRAGANDDROP
bool dragged = d->drag && d->drag->active();
#else
bool dragged = false;
#endif
bool wasPressed = d->pressed & button;
bool isclick = wasPressed && p == false && dragged == false && d->hovered == true;
Qt::MouseButtons oldPressed = d->pressed;
if (wasPressed != p) {
QQuickMouseEvent me(d->lastPos.x(), d->lastPos.y(), d->lastButton, d->lastButtons, d->lastModifiers, isclick, d->longPress);
if (p) {
d->pressed |= button;
if (!d->doubleClick)
emit pressed(&me);
me.setPosition(d->lastPos);
emit mouseXChanged(&me);
me.setPosition(d->lastPos);
emit mouseYChanged(&me);
if (!oldPressed) {
emit pressedChanged();
emit containsPressChanged();
}
emit pressedButtonsChanged();
} else {
d->pressed &= ~button;
emit released(&me);
me.setPosition(d->lastPos);
if (!d->pressed) {
emit pressedChanged();
emit containsPressChanged();
}
emit pressedButtonsChanged();
if (isclick && !d->longPress && !d->doubleClick){
me.setAccepted(d->isClickConnected());
emit clicked(&me);
if (!me.isAccepted())
d->propagate(&me, QQuickMouseAreaPrivate::Click);
}
}
return me.isAccepted();
}
return false;
}
void QQuickMouseArea::ungrabMouse()
{
Q_D(QQuickMouseArea);
if (d->pressed) {
// if our mouse grab has been removed (probably by Flickable), fix our
// state
d->pressed = 0;
d->stealMouse = false;
d->doubleClick = false;
setKeepMouseGrab(false);
#ifndef QT_NO_DRAGANDDROP
if (d->drag)
d->drag->setActive(false);
#endif
emit canceled();
emit pressedChanged();
emit containsPressChanged();
emit pressedButtonsChanged();
if (d->hovered && !isUnderMouse()) {
d->hovered = false;
emit hoveredChanged();
}
}
}
bool QQuickMouseArea::sendMouseEvent(QMouseEvent *event)
{
Q_D(QQuickMouseArea);
QPointF localPos = mapFromScene(event->windowPos());
QQuickWindow *c = window();
QQuickItem *grabber = c ? c->mouseGrabberItem() : 0;
bool stealThisEvent = d->stealMouse;
if ((stealThisEvent || contains(localPos)) && (!grabber || !grabber->keepMouseGrab())) {
QMouseEvent mouseEvent(event->type(), localPos, event->windowPos(), event->screenPos(),
event->button(), event->buttons(), event->modifiers());
mouseEvent.setAccepted(false);
switch (event->type()) {
case QEvent::MouseMove:
mouseMoveEvent(&mouseEvent);
break;
case QEvent::MouseButtonPress:
mousePressEvent(&mouseEvent);
break;
case QEvent::MouseButtonRelease:
mouseReleaseEvent(&mouseEvent);
stealThisEvent = d->stealMouse;
break;
default:
break;
}
grabber = c ? c->mouseGrabberItem() : 0;
if (grabber && stealThisEvent && !grabber->keepMouseGrab() && grabber != this)
grabMouse();
return stealThisEvent;
}
if (event->type() == QEvent::MouseButtonRelease) {
if (d->pressed) {
d->pressed &= ~event->button();
emit pressedButtonsChanged();
if (!d->pressed) {
// no other buttons are pressed
d->stealMouse = false;
if (c && c->mouseGrabberItem() == this)
ungrabMouse();
emit canceled();
emit pressedChanged();
emit containsPressChanged();
if (d->hovered) {
d->hovered = false;
emit hoveredChanged();
}
}
}
}
return false;
}
void QQuickMouseArea::ungrabMouse()
{
Q_D(QQuickMouseArea);
if (d->pressed) {
// if our mouse grab has been removed (probably by Flickable), fix our
// state
d->pressed = 0;
d->stealMouse = false;
setKeepMouseGrab(false);
emit canceled();
emit pressedChanged();
emit pressedButtonsChanged();
if (d->hovered) {
d->hovered = false;
emit hoveredChanged();
}
}
}
