void CircuitWidget::on_drag_data_received(const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& selection_data, guint info, guint time)
{
(void)info; //placate compiler...
(void)selection_data; //placate compiler...
if (!circuit) {
context->drag_finish(false, false, time);
return;
}
selections.clear();
static_cast<QCViewer*>(win)->set_selection (selections);
Gtk::Widget* widget = drag_get_source_widget(context);
Gtk::Button* button = dynamic_cast<Gtk::Button*>(widget);
if (button == NULL) {
context->drag_finish(false, false, time);
return;
}
shared_ptr<Gate> newgate;
unsigned int target = 0;
switch (static_cast<GateIcon*>(button->get_image())->type) {
case GateIcon::NOT:
newgate = shared_ptr<Gate>(new UGate ("X"));
newgate->drawType = Gate::NOT;
break;
case GateIcon::R:
newgate = shared_ptr<Gate>(new RGate (1.0, RGate::Z));
break;
case GateIcon::SWAP:
newgate = shared_ptr<Gate>(new UGate ("F"));
newgate->drawType = Gate::FRED;
newgate->targets.push_back (target++);
break;
case GateIcon::MEASURE:
newgate = shared_ptr<Gate>(new UGate("MEASURE",""));
newgate->drawType = Gate::MEASURE;
break;
default:
newgate = shared_ptr<Gate>(new UGate(static_cast<GateIcon*>(button->get_image ())->symbol));
break;
}
if (newgate->targets.size () > circuit->numLines ()) {
context->drag_finish (false, false, time);
return;
}
newgate->targets.push_back(target++);
Gtk::Allocation allocation = get_allocation();
const int width = allocation.get_width();
const int height = allocation.get_height();
// translate mouse click coords into circuit diagram coords
double xx = (x - width/2.0 + ext.width/2.0)/scale + cx;
double yy = (y - height/2.0 + ext.height/2.0)/scale + cy;
vector<int> select_ids;
string name;
int pos = -1;
getCircuitAndColPosition (xx, yy, circuit, rects, name, pos);
if (name.compare("Main")==0||pos==-1||name.compare("")==0) { //If the click is not in a subcircuit
vector<unsigned int> para = circuit->getGreedyParallel();
unsigned int wire = getFirstWire (yy);
if (wire + newgate->targets.size () - 1 >= circuit->numLines ()) {
wire = circuit->numLines () - newgate->targets.size ();
}
for (unsigned int i = 0; i < newgate->targets.size(); i++) {
newgate->targets[i] += wire;
}
if (columns.empty()||pos==-1) {
insert_gate_at_front (newgate);
} else if (pos >= (int)para.size()) {
insert_gate_in_new_column (newgate, circuit->numGates(),circuit);
} else {
insert_gate_in_new_column (newgate, para.at(pos),circuit);
}
circuit->getGreedyParallel();
} else {
insert_gate_in_new_column (newgate, pos,circuit->subcircuits[name]);
unsigned int wire = getFirstWire (yy);
for (unsigned int i = 0; i < newgate->targets.size(); i++) newgate->targets[i] += wire;
}
context->drag_finish(true, false, time);
}
