/** @overrides WorkspaceWidget.blockDropped() */
@Override
public void blockDropped(RenderableBlock block) {
// add to view at the correct location
Component oldParent = block.getParent();
block.setLocation(
SwingUtilities.convertPoint(oldParent, block.getLocation(), this.pageJComponent));
addBlock(block);
this.pageJComponent.setComponentZOrder(block, 0);
this.pageJComponent.revalidate();
}
@Override
public int compare(RenderableBlock rb1, RenderableBlock rb2) {
if (rb1 == rb2) {
return 0;
} else {
// translate points to a common reference: the parent of rb1
Point pt1 = rb1.getLocation();
Point pt2 =
SwingUtilities.convertPoint(
rb2.getParentWidget().getJComponent(),
rb2.getLocation(),
rb1.getParentWidget().getJComponent());
if (pt1.getY() < pt2.getY()) {
return -1;
} else {
return 1;
}
}
}
/**
* @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();
}
private void pasteStack(BlockNode node) {
// ====================>>>>>>>>>>>>>>>>>>>>>>>>>
// ====================focus coming in>>>>>>>>>> TODO
// ====================>>>>>>>>>>>>>>>>>>>>>>>>>
if (node == null) {
return;
}
WorkspaceWidget widget = null;
Iterable<WorkspaceWidget> widgets = null;
Point spot = null;
if (invalidBlockID(focusManager.getFocusBlockID())) {
// canvas has focus
Point location =
SwingUtilities.convertPoint(
this.blockCanvas.getCanvas(), this.focusManager.getCanvasPoint(), workspace);
widget = workspace.getWidgetAt(location);
spot =
SwingUtilities.convertPoint(
this.blockCanvas.getCanvas(),
this.focusManager.getCanvasPoint(),
widget.getJComponent());
} else {
RenderableBlock focusRenderable =
workspace.getEnv().getRenderableBlock(focusManager.getFocusBlockID());
widget = focusRenderable.getParentWidget();
spot = focusRenderable.getLocation();
}
if (widget == null) {
// TODO: To be examined and fixed, occurs on macs
JOptionPane.showMessageDialog(
frame, "Please click somewhere on the canvas first.", "Error", JOptionPane.PLAIN_MESSAGE);
// throw new RuntimeException("Why are we adding a block to a null widget?");
} else {
// checks to see if the copied block still exists
if (BlockUtilities.blockExists(workspace, node)) {
// create mirror block and mirror childrens
spot.translate(10, 10);
RenderableBlock mirror = BlockUtilities.makeRenderable(workspace, node, widget);
mirror.setLocation(spot);
mirror.moveConnectedBlocks(); // make sure the childrens are placed correctly
} else {
// TODO: future version, allow them to paste
JOptionPane.showMessageDialog(
frame,
"You cannot paste blocks that are currently NOT on the canvas."
+ "\nThis function will be available in a future version.\n",
"Error",
JOptionPane.PLAIN_MESSAGE);
}
}
}
