void SCgView::contextMenuEvent(QContextMenuEvent *event)
{
if (event->reason() == QContextMenuEvent::Keyboard || event->reason() == QContextMenuEvent::Other)
return;
// get scg-object under mouse
QPointF mousePos = mapToScene(event->pos());/* +
QPointF(horizontalScrollBar()->value(), verticalScrollBar()->value()) -
scene()->sceneRect().topLeft();*/
SCgObject *object = static_cast<SCgScene*>(scene())->objectAt(mousePos);
// create context menu
if (mContextMenu)
{
delete mContextMenu;
mContextMenu = 0;
}
// selection by right mouse click
if(object && !object->isSelected())
{
scene()->clearSelection();
object->setSelected(true);
}
// create new context menu
mContextMenu = new QMenu;
if (mContextObject)
{
// creating menu actions depending on object type
if (mContextObject->type() == SCgNode::Type || mContextObject->type() == SCgPair::Type)
{
// type changing
QMenu *menu = mContextMenu->addMenu(tr("Change type"));
connect(menu, SIGNAL(triggered(QAction*)), this, SLOT(changeType(QAction*)));
QMenu* constSub = menu->addMenu(tr("Const"));
QMenu* varSub = menu->addMenu(tr("Var"));
QString stype;
SCgAlphabet::SCgObjectTypesMap types;
SCgAlphabet::SCgObjectTypesMap::const_iterator iter;
if (mContextObject->type() == SCgNode::Type)
stype = "node";
else if (mContextObject->type() == SCgPair::Type)
stype = "pair";
SCgAlphabet::getInstance().getObjectTypes(stype, SCgAlphabet::Const, types);
for (iter = types.begin(); iter != types.end(); ++iter)
constSub->addAction(iter.value(), iter.key())->setData(QVariant(iter.key()));
types.clear();
SCgAlphabet::getInstance().getObjectTypes(stype, SCgAlphabet::Var, types);
for (iter = types.begin(); iter != types.end(); ++iter)
varSub->addAction(iter.value(), iter.key())->setData(QVariant(iter.key()));
types.clear();
SCgAlphabet::getInstance().getObjectTypes(stype, SCgAlphabet::ConstUnknown, types);
for (iter = types.begin(); iter != types.end(); ++iter)
menu->addAction(iter.value(), iter.key())->setData(QVariant(iter.key()));
types.clear();
}
}
SCgConfig::SCgConfig(QObject *parent) :
QObject(parent)
{
configTabEl = new QWidget();
defaultTypeNodeList = new QComboBox();
SCgAlphabet::SCgObjectTypesMap types;
SCgAlphabet::SCgObjectTypesMap::const_iterator iter;
SCgAlphabet::getInstance().getObjectTypes("node", SCgAlphabet::Const, types);
for (iter = types.begin(); iter != types.end(); ++iter)
defaultTypeNodeList->addItem(iter.value(), iter.key());
SCgAlphabet::getInstance().getObjectTypes("node", SCgAlphabet::Var, types);
for (iter = types.begin(); iter != types.end(); ++iter)
defaultTypeNodeList->addItem(iter.value(), iter.key());
defaultTypePairList = new QComboBox();
SCgAlphabet::getInstance().getObjectTypes("pair", SCgAlphabet::Const, types);
for (iter = types.begin(); iter != types.end(); ++iter)
{
if (isWritting) break;
QString first4symbols = iter.key();
first4symbols.resize(4);
if (first4symbols == "pair")
defaultTypePairList->addItem(iter.value(), iter.key());
}
isWritting = true;
SCgAlphabet::getInstance().getObjectTypes("pair", SCgAlphabet::Var, types);
for (iter = types.begin(); iter != types.end(); ++iter)
{
QString first4symbols = iter.key();
first4symbols.resize(4);
if (first4symbols == "pair")
defaultTypePairList->addItem(iter.value(), iter.key());
}
QVBoxLayout *vertical = new QVBoxLayout();
QLabel *labelNodeList = new QLabel(tr("Default type of nodes: "));
QLabel *labelPairList = new QLabel(tr("Default type of pairs: "));
vertical->addWidget(labelNodeList);
defaultTypeNodeList->setFixedWidth(250);
vertical->addWidget(defaultTypeNodeList);
vertical->addSpacing(20);
vertical->addWidget(labelPairList);
defaultTypePairList->setFixedWidth(250);
vertical->addWidget(defaultTypePairList);
vertical->addSpacing(150);
configTabEl->setLayout(vertical);
connect(defaultTypeNodeList, SIGNAL(activated(int)), this, SLOT(setNodeDefaultType()));
connect(defaultTypePairList, SIGNAL(activated(int)), this, SLOT(setPairDefaultType()));
}
