protected Command computeCommand() {
MUIElement selectedPart = model;
if (selectedPart instanceof MPart) {
MGenericStack<MUIElement> partStack = findParentStack();
if (partStack != null) {
selectedPart = partStack;
}
}
MElementContainer<MUIElement> parent = partStack.getParent();
List<MUIElement> children = parent.getChildren();
int index = children.indexOf(partStack);
if (parent instanceof MGenericTile<?>) {
MGenericTile<?> genericTile = (MGenericTile<?>) parent;
int modelIndex = children.indexOf(selectedPart);
if (modelIndex == 0 && index == 1 && children.size() == 2 && genericTile.isHorizontal()) {
return UnexecutableCommand.INSTANCE;
}
}
CompoundCommand result = new CompoundCommand();
MPartSashContainer newSash = MBasicFactory.INSTANCE.createPartSashContainer();
String preferData = partStack.getContainerData();
newSash.setContainerData(preferData);
newSash.setHorizontal(true);
if (selectedPart instanceof MPartStack) {
if (selectedPart.getParent() == null) {
selectedPart.setContainerData(preferData);
result.add(CommandFactory.createAddChildCommand(newSash, selectedPart, 0));
} else {
result.add(new ChangeParentCommand(newSash, selectedPart, 0));
if (!preferData.equals(selectedPart.getContainerData())) {
result.add(
new ApplyAttributeSettingCommand(
(EObject) selectedPart, "containerData", preferData));
}
}
} else if (selectedPart instanceof MPart) {
MPart part = (MPart) selectedPart;
MPartStack createPartStack = MBasicFactory.INSTANCE.createPartStack();
createPartStack.setContainerData(preferData);
if (part.getParent() != null) {
result.add(new ChangeParentCommand(createPartStack, part, 0));
} else {
result.add(CommandFactory.createAddChildCommand(createPartStack, part, 0));
}
result.add(CommandFactory.createAddChildCommand(newSash, createPartStack, 0));
}
result.add(new ChangeParentCommand(newSash, partStack, 1));
result.add(CommandFactory.createAddChildCommand(parent, newSash, index));
return result.unwrap();
}
@Override
public void insert(
MPartSashContainerElement toInsert, MPartSashContainerElement relTo, int where, float ratio) {
assert (toInsert != null && relTo != null);
if (ratio >= 1) {
warn("EModelService#insert() expects the ratio to be between (0,100)"); // $NON-NLS-1$
ratio = ratio / 100; // reduce it
}
assert (ratio > 0 && ratio < 1);
// determine insertion order
boolean insertBefore = where == ABOVE || where == LEFT_OF;
boolean horizontal = where == LEFT_OF || where == RIGHT_OF;
MPartSashContainer newSash = BasicFactoryImpl.eINSTANCE.createPartSashContainer();
newSash.setHorizontal(horizontal);
// Maintain the existing weight in the new sash
newSash.setContainerData(relTo.getContainerData());
combine(toInsert, relTo, newSash, insertBefore, ratio);
}