bool MInverseMouseArea::eventFilter(QObject *obj, QEvent *ev)
{
Q_UNUSED(obj);
if (!m_enabled || !isVisible())
return false;
switch (ev->type()) {
case QEvent::GraphicsSceneMousePress: {
QGraphicsSceneMouseEvent *me = static_cast<QGraphicsSceneMouseEvent *>(ev);
QPointF mappedPos = mapToRootItem(me->scenePos());
m_pressed = !contains(mapFromScene(me->scenePos())) && !isClickedOnSoftwareInputPanel(me);
if (m_pressed)
emit pressedOutside(mappedPos.x(), mappedPos.y());
break;
}
case QEvent::GraphicsSceneMouseMove: {
if (m_pressed) {
QGraphicsSceneMouseEvent *me = static_cast<QGraphicsSceneMouseEvent *>(ev);
const QPointF &dist = me->scenePos() - me->buttonDownScenePos(Qt::LeftButton);
if (dist.x() * dist.x() + dist.y() * dist.y() > FlickThresholdSquare)
m_pressed = false;
}
break;
}
case QEvent::GraphicsSceneMouseRelease: {
QGraphicsSceneMouseEvent *me = static_cast<QGraphicsSceneMouseEvent *>(ev);
QPointF mappedPos = mapToRootItem(me->scenePos());
if (m_pressed) {
m_pressed = false;
emit clickedOutside(mappedPos.x(), mappedPos.y());
}
break;
}
default:
break;
}
return false;
}
dmz::V8Value
dmz::JsModuleUiV8QtBasic::_gscene_mouse_event_button_down_scene_pos (const v8::Arguments &Args) {
v8::HandleScope scope;
V8Value result = v8::Undefined ();
JsModuleUiV8QtBasic *self = _to_self (Args);
if (self) {
QGraphicsSceneMouseEvent *event =
(QGraphicsSceneMouseEvent *)self->_to_qevent (Args.This ());
if (event) {
if (Args.Length ()) {
Qt::MouseButton button = (Qt::MouseButton) v8_to_uint32 (Args[0]);
result = qpointf_to_v8 (event->buttonDownScenePos (button));
}
}
}
return scope.Close (result);
}
bool CMindMapEventHandler::onEvent(CDiagramPrivateData *p, QEvent *evt)
{
bool r = false;
CDiagram *d = NULL;
CDiagramItem *item = NULL;
CMindMapNode *node = NULL;
QList<CDiagramItem*> items;
if ( !p || !p->m_d || p->m_d->mode() == CDiagram::EditTextMode )
return r;
d = p->m_d;
m_pdata = p;
switch(evt->type())
{
case QEvent::GraphicsSceneDragEnter:
r = dragEnterEvent(static_cast<QGraphicsSceneDragDropEvent*>(evt));
break;
case QEvent::GraphicsSceneDragMove:
r = dragMoveEvent(static_cast<QGraphicsSceneDragDropEvent*>(evt));
break;
case QEvent::GraphicsSceneDrop:
r = dropEvent(static_cast<QGraphicsSceneDragDropEvent*>(evt));
break;
case QEvent::GraphicsSceneMousePress:
if (m_draggedImage->scene() == d)
d->removeItem(m_draggedImage);
m_pdata->m_customPressedItem = NULL;
m_target = NULL;
break;
case QEvent::GraphicsSceneMouseMove:
{
QGraphicsSceneMouseEvent *event = NULL;
QPointF endPos;
QPointF startPos;
QDrag *drag = NULL;
QMimeData *mime = NULL;
QByteArray mimeData;
QDataStream dataStream(&mimeData, QIODevice::WriteOnly);
event = static_cast<QGraphicsSceneMouseEvent*>(evt);
if (event && d->mode() == CDiagram::CursorMode)
{
if (event->buttons() & Qt::LeftButton )
{
endPos = event->scenePos();
startPos = event->buttonDownScenePos(Qt::LeftButton);
if (!m_pdata->m_customPressedItem)
{
items = d->selectedTopLevelItems();
if (items.length() == 1)
{
node = dynamic_cast<CMindMapNode*>(items.first());
if (node && node->isMovable() && node->mapToScene( node->boundingRect() ).containsPoint(event->scenePos(), Qt::WindingFill ) )
{
m_pdata->m_customPressedItem = node;
}
else if (node && node->isRoot())
{
r = true;
}
}
else
{
foreach (item, items)
{
node = dynamic_cast<CMindMapNode*>(item);
if (node && node->isRoot())
{
r = true;
break;
}
}
}
}
// check whether we should start the moving action
// using manhattanLength.
if (m_pdata->m_customPressedItem &&
m_draggedImage->scene() != d &&
((startPos, endPos).manhattanLength() > QApplication::startDragDistance() ) )
{
((CMindMapDragImage*)m_draggedImage)->updateDraggedItemsRect(d, m_pdata->m_customPressedItem);
m_pdata->m_d->addItem(m_draggedImage);
m_draggedImage->setVisible(true);
m_draggedImageInitPos = m_draggedImage->pos();
dataStream << event->buttonDownScenePos(Qt::LeftButton);
mime = new QMimeData();
mime->setData(DND_DRAGMINDMAPNODE, mimeData);
drag = new QDrag( d->getMainView() );
drag->setMimeData(mime);
if (drag->exec(Qt::CopyAction | Qt::MoveAction, Qt::MoveAction) == Qt::MoveAction)
{
// Should do something here.
}
event->accept();
r = true;
}
}
}
