void InputAPI::SetMouseCursorVisible(bool visible)
{
if (framework->IsHeadless())
return;
if (mouseCursorVisible == visible)
return;
mouseCursorVisible = visible;
if (mouseCursorVisible)
{
// We're showing the previously hidden mouse cursor. Restore the mouse cursor to the position where it
// was when mouse was hidden.
QApplication::restoreOverrideCursor();
QCursor::setPos(mouseFPSModeEnterX, mouseFPSModeEnterY);
ApplyMouseCursorOverride();
}
else
{
// Hide the mouse cursor and save up the coordinates where the mouse cursor was hidden.
QApplication::setOverrideCursor(QCursor(Qt::BlankCursor));
mouseFPSModeEnterX = QCursor::pos().x();
mouseFPSModeEnterY = QCursor::pos().y();
}
assert(framework->Ui() && framework->Ui()->GraphicsView());
QGraphicsView *view = framework->Ui()->GraphicsView();
QPoint mousePos = view->mapFromGlobal(QCursor::pos());
lastMouseX = mousePos.x();
lastMouseY = mousePos.y();
}
/*!
Returns the scene-local coordinates if the \a gesturePoint is inside a
graphics view.
This functional might be useful when the gesture event is delivered to a
QGraphicsObject to translate a point in screen coordinates to scene-local
coordinates.
\sa QPointF::isNull()
*/
QPointF QGestureEvent::mapToGraphicsScene(const QPointF &gesturePoint) const
{
QWidget *w = widget();
if (w) // we get the viewport as widget, not the graphics view
w = w->parentWidget();
QGraphicsView *view = qobject_cast<QGraphicsView*>(w);
if (view) {
return view->mapToScene(view->mapFromGlobal(gesturePoint.toPoint()));
}
return QPointF();
}
QPointF viewportToItemPosition(const QPoint & pos, QWidget * widget)
{
QGraphicsView *view = 0;
if (widget)
view = qobject_cast<QGraphicsView *>(widget->parentWidget());
if (view)
{
QTransform deviceTransform = item->deviceTransform(view->viewportTransform()).inverted();
return deviceTransform.map(QPointF(view->mapFromGlobal(pos)));
}
return pos;
}
//Maps screen coordinates to scrollArea coordinates though current m_eventViewport widget
QPointF ScrollerPrivate::mapToScrollArea(const QPoint &point)
{
if (!m_scrollArea || !m_eventViewport)
return point;
QObject *vparent = m_eventViewport->parent();
if (!vparent)
return point;
QGraphicsView *view = qobject_cast<QGraphicsView*>(vparent);
if (!view)
return point;
QPoint pt = view->mapFromGlobal(point);
return m_scrollArea->mapFromScene(view->mapToScene(pt));
}
/// \bug Due to not being able to restrict the mouse cursor to the window client are in any cross-platform means,
/// it is possible that if the screen is resized to very small and if the mouse is moved very fast, the cursor
/// escapes the window client area and will not get recentered.
void QtInputService::RecenterMouse()
{
QGraphicsView *view = framework->GetUIView();
QPoint centeredCursorPosLocal = QPoint(view->size().width()/2, view->size().height()/2);
lastMouseX = centeredCursorPosLocal.x();
lastMouseY = centeredCursorPosLocal.y();
// This call might trigger an immediate mouse move message to the window, so set the mouse coordinates above.
QPoint centeredCursorPosGlobal = view->mapToGlobal(centeredCursorPosLocal);
if (centeredCursorPosGlobal == QCursor::pos())
return; // If the mouse cursor already is at the center, don't do anything.
QCursor::setPos(centeredCursorPosGlobal);
// Double-check that the mouse cursor did end up where we wanted it to go.
QPoint mousePos = view->mapFromGlobal(QCursor::pos());
lastMouseX = mousePos.x();
lastMouseY = mousePos.y();
}
void SCgInsertMode::activate()
{
if (mInsertedObjectGroup)
{
delete mInsertedObjectGroup;
mInsertedObjectGroup = 0;
}
const QMimeData* data = QApplication::clipboard()->mimeData();
if (data->hasFormat(SCgWindow::SupportedPasteMimeType))
{
QDomDocument document;
if (!document.setContent(data->data(SCgWindow::SupportedPasteMimeType)))
return;
// Read document
GwfObjectInfoReader reader;
if (!reader.read(document))
return;
//Place objects to scene
TemplateSCgObjectsBuilder objectBuilder(mScene);
objectBuilder.buildObjects(reader.objectsInfo());
QList<SCgObject*> list = objectBuilder.objects();
QList<QGraphicsItem*> withoutChilds;
foreach(SCgObject* obj, list)
{
if (!obj->parentItem())
withoutChilds.append(obj);
}
if(!withoutChilds.empty())
{
mInsertedObjectGroup = mScene->createItemGroup(withoutChilds);
QGraphicsView* v = mScene->views().at(0);
QPointF p = v->mapToScene(v->mapFromGlobal(QCursor::pos()));
mInsertedObjectGroup->setPos(p);
mInsertedObjectGroup->setOpacity(0.5);
}
}
