/** {@inheritDoc} */
@Override
public void actionPerformed(ActionEvent e) {
final XcosDiagram parentGraph = (XcosDiagram) getGraph(e);
// action disabled when the cell is edited
final ScilabComponent comp = ((ScilabComponent) parentGraph.getAsComponent());
if (comp.isEditing()) {
return;
}
parentGraph.info(XcosMessages.GENERATE_SUPERBLOCK);
parentGraph.getModel().beginUpdate();
try {
final SuperBlock superBlock;
final Collection<Broken> brokenLinks;
final Set<Object> inSelectionCells;
/*
* Allocate superBlock
*/
final Object[] selection = parentGraph.getSelectionCells();
final Object[] blocks = XcosDiagram.filterByClass(selection, BasicBlock.class);
inSelectionCells = new LinkedHashSet<Object>(Arrays.asList(blocks));
superBlock = allocateSuperBlock(parentGraph, selection);
/*
* First perform all modification on the parent diagram to handle
* well undo/redo operations.
*/
brokenLinks = updateParent(parentGraph, superBlock, inSelectionCells);
/*
* Then move some cells to the child diagram
*/
final SuperBlockDiagram childGraph =
moveToChild(parentGraph, superBlock, brokenLinks, inSelectionCells);
/*
* Finish the install on the child and sync it.
*/
childGraph.installListeners();
childGraph.installSuperBlockListeners();
superBlock.invalidateRpar();
Xcos.getInstance().addDiagram(parentGraph.getSavedFile(), childGraph);
} finally {
parentGraph.getModel().endUpdate();
parentGraph.info(XcosMessages.EMPTY_INFO);
}
}
/**
* Create child cells and add them to the parent diagram. All links are also reconnected
*
* @param parentGraph the parent diagram
* @param superBlock the superblock
* @param inSelectionCells the cells in the selection
* @return the broken descriptor set
*/
private Collection<Broken> updateParent(
final XcosDiagram parentGraph,
final SuperBlock superBlock,
final Set<Object> inSelectionCells) {
final Collection<Broken> brokenLinks;
final mxGraphModel parentModel = (mxGraphModel) parentGraph.getModel();
parentModel.beginUpdate();
try {
/*
* Add the internal links and fill border links Sort the broken
* links by position (to perform a good numbering order) and keep
* only one occurrence of a broken link.
*/
brokenLinks = new TreeSet<Broken>();
fillLinks(parentModel, inSelectionCells, brokenLinks);
/*
* Disconnect the broken links
*/
for (Broken broken : brokenLinks) {
mxGraphModel.setTerminals(parentModel, broken.getParentLink(), null, null);
}
/*
* Add the super block
*/
parentGraph.addCell(superBlock);
/*
* Main broken loop
*/
// ordering access is : IN, OUT, e_IN, e_OUT
final int[] ordering = {0, 0, 0, 0};
for (Broken broken : brokenLinks) {
// set the ordering
incrementOrdering(ordering, broken);
connectParent(parentGraph, parentModel, superBlock, broken);
connectChild(parentGraph, parentModel, broken);
/*
* Update the view
*/
BlockPositioning.updateBlockView(broken.getChildBlock());
}
} finally {
parentModel.endUpdate();
}
return brokenLinks;
}