/** @overrides WorkspaceWidget.addBlock() */
@Override
public void addBlock(RenderableBlock block) {
// update parent widget if dropped block
WorkspaceWidget oldParent = block.getParentWidget();
if (oldParent != this) {
if (oldParent != null) {
oldParent.removeBlock(block);
if (block.hasComment()) {
block.getComment().getParent().remove(block.getComment());
}
}
block.setParentWidget(this);
if (block.hasComment()) {
block.getComment().setParent(block.getParentWidget().getJComponent());
}
}
this.getRBParent().addToBlockLayer(block);
block.setHighlightParent(this.getRBParent());
// if block has page labels enabled, in other words, if it can, then set page label to this
if (workspace.getEnv().getBlock(block.getBlockID()).isPageLabelSetByPage()) {
workspace.getEnv().getBlock(block.getBlockID()).setPageLabel(this.getPageName());
}
// notify block to link default args if it has any
block.linkDefArgs();
// fire to workspace that block was added to canvas if oldParent != this
if (oldParent != this) {
workspace.notifyListeners(
new WorkspaceEvent(workspace, oldParent, block.getBlockID(), WorkspaceEvent.BLOCK_MOVED));
workspace.notifyListeners(
new WorkspaceEvent(
workspace, this, block.getBlockID(), WorkspaceEvent.BLOCK_ADDED, true));
}
// if the block is off the edge, shift everything or grow as needed to fully show it
this.reformBlockPosition(block);
this.pageJComponent.setComponentZOrder(block, 0);
}
/**
* @modifies this.miniPixelWidth
* @effects sets the minimumPixelWidth such that the following condition holds:
* DEFAULT_MINIMUMWIDTH < new minimumPixelWidth && for each block, b, in this page's set of
* blocks { b.x+b.width < new minimumPixelWidth}
*/
public void reformMinimumPixelWidth() {
minimumPixelWidth = 0; // reset min to 0
// loop through blocks, growing min to fit each block
for (RenderableBlock b : this.getBlocks()) {
if (b.getX() + b.getWidth() + b.getHighlightStrokeWidth() / 2 > minimumPixelWidth) {
// increase min width to fit this block
minimumPixelWidth = b.getX() + b.getWidth() + b.getHighlightStrokeWidth() / 2 + 1;
}
if (b.hasComment()) {
if (b.getComment().getX() + b.getComment().getWidth() > minimumPixelWidth) {
// increase min width to fit this block
minimumPixelWidth = b.getComment().getX() + b.getComment().getWidth() + 1;
}
}
}
if (this.minimumPixelWidth < Page.DEFAULT_MINUMUM_WIDTH * zoom) {
this.minimumPixelWidth = (int) (Page.DEFAULT_MINUMUM_WIDTH * zoom);
}
}
/**
* @param block - the new block being added whose position must be revalidated
* @requires block != null
* @modifies block.location or this page's abstract width
* @effects shifts this block into the page or increases the width of this page to fit the new
* block. It must then notify listeners that the page's size may have changed
*/
public void reformBlockPosition(RenderableBlock block) {
// move blocks in
Point p =
SwingUtilities.convertPoint(block.getParent(), block.getLocation(), this.pageJComponent);
if (p.x < block.getHighlightStrokeWidth() / 2 + 1) {
block.setLocation(block.getHighlightStrokeWidth() / 2 + 1, p.y);
block.moveConnectedBlocks();
// the block has moved, so update p
p = SwingUtilities.convertPoint(block.getParent(), block.getLocation(), this.pageJComponent);
} else if (p.x + block.getWidth() + block.getHighlightStrokeWidth() / 2 + 1
> this.pageJComponent.getWidth()) {
this.setPixelWidth(p.x + block.getWidth() + block.getHighlightStrokeWidth() / 2 + 1);
}
if (p.y < block.getHighlightStrokeWidth() / 2 + 1) {
block.setLocation(p.x, block.getHighlightStrokeWidth() / 2 + 1);
block.moveConnectedBlocks();
} else if (p.y + block.getStackBounds().height + block.getHighlightStrokeWidth() / 2 + 1
> this.pageJComponent.getHeight()) {
block.setLocation(
p.x,
this.pageJComponent.getHeight()
- block.getStackBounds().height
- block.getHighlightStrokeWidth() / 2
+ 1);
block.moveConnectedBlocks();
}
if (block.hasComment()) {
// p = SwingUtilities.convertPoint(block.getComment().getParent(),
// block.getComment().getLocation(), this.pageJComponent);
p = block.getComment().getLocation();
if (p.x + block.getComment().getWidth() + 1 > this.pageJComponent.getWidth()) {
this.setPixelWidth(p.x + block.getComment().getWidth() + 1);
}
}
// repaint all pages
PageChangeEventManager.notifyListeners();
}