private void repositionDecorations(Container parent) {
DiagramView diagramView = (DiagramView) parent;
DesignView designView = diagramView.getDesignView();
Iterator<Pattern> itr = diagramView.getPatterns();
while (itr.hasNext()) {
Pattern pattern = itr.next();
Decoration decoration = designView.getDecoration(pattern);
if ((decoration == null) || !decoration.hasComponents()) {
continue;
}
double zoom = designView.getCorrectedZoom();
// group components by positioneer
HashMap<Positioner, List<Component>> positionerComponents =
new HashMap<Positioner, List<Component>>();
ComponentsDescriptor components = decoration.getComponents();
int componentsCount = components.getComponentCount();
for (int i = 0; i < componentsCount; i++) {
Component c = components.getComponent(i);
Positioner p = components.getPositioner(i);
List<Component> list = positionerComponents.get(p);
if (list == null) {
list = new ArrayList<Component>(componentsCount);
positionerComponents.put(p, list);
}
list.add(c);
if (c instanceof ZoomableDecorationComponent) {
// apply zoom
((ZoomableDecorationComponent) c).setZoom(zoom);
}
}
// call positioners for each group
for (Positioner p : positionerComponents.keySet()) {
p.position(pattern, positionerComponents.get(p), zoom);
}
}
}
