DiagramItem * QCanvasItemToDiagramItem(Q3CanvasItem * ci)
{
if (isa_arrow(ci))
return ((ArrowCanvas *) ci);
else if (isa_label(ci))
return ((LabelCanvas *) ci);
else
return (isa_alien(ci))
? 0
: ((DiagramCanvas *) ci);
}
void ActivityContainerCanvas::prepare_for_move(bool on_resize) {
if (! on_resize) {
// select all sub nodes
Q3CanvasItemList all = canvas()->allItems();
Q3CanvasItemList::Iterator cit;
UmlCanvas * canvas = the_canvas();
for (cit = all.begin(); cit != all.end(); ++cit) {
if ((*cit)->visible() && !(*cit)->selected()) {
DiagramItem * di = QCanvasItemToDiagramItem(*cit);
if ((di != 0) &&
(di->get_bn() != 0) &&
(((BrowserNode *) di->get_bn()->parent()) == browser_node)) {
// must look at the type because some canvas items have browser_node
// attr set to the diagram and the parent of the diagram is the activity
switch (di->type()) {
case UmlActivityObject:
case UmlActivityAction:
case UmlActivityPartition:
case InitialAN:
case FlowFinalAN:
case ActivityFinalAN:
case DecisionAN:
case MergeAN:
case ForkAN:
case JoinAN:
case UmlExpansionRegion:
case UmlInterruptibleActivityRegion:
canvas->select(*cit);
((DiagramCanvas *) di)->prepare_for_move(on_resize);
break;
default:
break;
}
}
}
}
// select points on lines having the two extremities selected or
// connecting pin/parameter/expansion node of element selected
for (cit = all.begin(); cit != all.end(); ++cit) {
if ((*cit)->visible() && !(*cit)->selected() && isa_arrow(*cit)) {
ArrowCanvas * ar = (ArrowCanvas *) *cit;
DiagramItem * b;
DiagramItem * e;
ar->extremities(b, e);
if (!b->isSelected() || !e->isSelected()) {
DiagramItem * start = ar->get_start();
DiagramItem * dest = ar->get_end();
if ((start->isSelected() || indirectly_selected(start)) &&
(dest->isSelected() || indirectly_selected(dest))) {
while (b->type() == UmlArrowPoint) {
canvas->select((ArrowPointCanvas *) b);
ar = ((ArrowPointCanvas *) b)->get_other(ar);
ar->extremities(b, e);
}
ar = (ArrowCanvas *) *cit;
ar->extremities(b, e);
while (e->type() == UmlArrowPoint) {
canvas->select((ArrowPointCanvas *) e);
ar = ((ArrowPointCanvas *) e)->get_other(ar);
ar->extremities(b, e);
}
}
}
}
}
}
}
DiagramCanvas * QCanvasItemToDiagramCanvas(Q3CanvasItem * ci)
{
return (isa_arrow(ci) || isa_label(ci) || isa_alien(ci))
? 0
: ((DiagramCanvas *) ci);
}