public void workspaceEventOccurred(WorkspaceEvent event) {
// THIS ENTIRE METHOD IS A HACK!
// PLEASE CHANGE WITH CAUTION
// IT DOES SOME PREETY STRANGE THINGS
if (event.getEventType() == WorkspaceEvent.BLOCK_ADDED) {
if (event.getSourceWidget() instanceof Page) {
Page page = (Page) event.getSourceWidget();
Block block = Block.getBlock(event.getSourceBlockID());
// block may not be null if this is a block added event
if (block.hasStubs()) {
for (BlockStub stub : block.getFreshStubs()) {
this.addDynamicBlock(
new FactoryRenderableBlock(this, stub.getBlockID()), page.getPageDrawer());
}
}
}
} else if (event.getEventType() == WorkspaceEvent.BLOCK_REMOVED) {
// may not be removing a null stanc eof block, so DO NOT check for it
Block block = Block.getBlock(event.getSourceBlockID());
if (block.hasStubs()) {
for (Long stub : BlockStub.getStubsOfParent(block.getBlockID())) {
RenderableBlock rb = RenderableBlock.getRenderableBlock(stub);
if (rb != null
&& !rb.getBlockID().equals(Block.NULL)
&& rb.getParentWidget() != null
&& rb.getParentWidget().equals(this)) {
// rb.getParent() should not be null
rb.getParent().remove(rb);
rb.setParentWidget(null);
}
}
}
this.relayoutBlocks();
} else if (event.getEventType() == WorkspaceEvent.BLOCK_MOVED) {
Block block = Block.getBlock(event.getSourceBlockID());
if (block != null && block.hasStubs()) {
for (Long stub : BlockStub.getStubsOfParent(block.getBlockID())) {
RenderableBlock rb = RenderableBlock.getRenderableBlock(stub);
if (rb != null
&& !rb.getBlockID().equals(Block.NULL)
&& rb.getParentWidget() != null
&& rb.getParentWidget().equals(this)) {
// rb.getParent() should not be null
rb.getParent().remove(rb);
rb.setParentWidget(null);
}
}
this.relayoutBlocks();
}
} else if (event.getEventType() == WorkspaceEvent.PAGE_RENAMED) {
// this.relayoutBlocks();
}
}
public void blockDropped(RenderableBlock block) {
// remove block
WorkspaceWidget oldParent = block.getParentWidget();
if (oldParent != null) oldParent.removeBlock(block);
Container parent = block.getParent();
if (parent != null) {
parent.remove(block);
parent.validate();
parent.repaint();
block.setParentWidget(null);
}
// fire to workspace that block was removed
// DO FIRE AN EVENT IF BLOCK IS REMOVED BY USER!!!!
// NOTE however that we do not throw na event for adding internally
Workspace.getInstance()
.notifyListeners(
new WorkspaceEvent(this, block.getBlockID(), WorkspaceEvent.BLOCK_REMOVED));
}