void SCgPairModeEventHandler::mousePress(QGraphicsSceneMouseEvent *event)
{
SCgEventHandler::mousePress(event);
if (event->button() == Qt::LeftButton)
{
QPointF mousePos = event->scenePos();
SCgObject *obj = mScene->objectAt(mousePos);
// if we not create pair yet and press on scg-object, then
// start pair creation
if (obj && !mPathItem)
startLineCreation(mousePos);
else
if (obj && obj != mPathItem->parentItem())
{
SCgObject *begObj = mObjectAtFirstPoint;
SCgObject *endObj = obj;
// do not create lines with equivalent begin end end object
if (begObj != endObj && begObj && !begObj->isDead())
{
SCgContour* c=0;
// get parent contour
QGraphicsItem* parent = begObj->parentItem();
if(parent && parent == endObj->parentItem())
if (parent->type() == SCgContour::Type)
c = static_cast<SCgContour*>(parent);
mScene->createPairCommand(mLinePoints, begObj, endObj, c);
}
endLineCreation();
} // if (obj)
}
}
//back
void SCgCommandObjectDelete::undo()
{
SCgBaseCommand::undo();
QList<SCgObject*>::iterator it;
for (it = mDelList.begin(); it != mDelList.end(); ++it)
{
SCgObject *object = *it;
if(!object->parentItem())
{
QGraphicsItem *parent = mParents[object];
object->undel(mScene);
object->setParentItem(parent);
object->positionChanged();
}
}
}
void SCgCommandObjectDelete::redo()
{
mDelList.clear();
mParents.clear();
mObject->del(mDelList);
QList<SCgObject*>::iterator it;
for (it = mDelList.begin(); it != mDelList.end(); ++it)
{
SCgObject *object = *it;
QGraphicsItem *parent = object->parentItem();
mParents[object] = parent;
if(object->scene() == mScene)
{
object->setParentItem(0);
mScene->removeItem(object);
}
}
SCgBaseCommand::redo();
}
