/**
* This method serves to help clients sort blocks within a page in some manner.
*
* @param page
* @param topLevelBlocks
* @requires page != null && topLevelBlocks != null
* @modifies the location of all topLevelBlocks
* @effects sort the topLevelBlocks and move them to an order location on the page
*/
protected static void sortBlockStacks(Page page, Collection<RenderableBlock> topLevelBlocks) {
blocksToArrange.clear();
positioningBounds.setBounds(
BUFFER_BETWEEN_BLOCKS, BUFFER_BETWEEN_BLOCKS, 0, BUFFER_BETWEEN_BLOCKS);
// created an ordered list of blocks based on x-coordinate position
blocksToArrange.addAll(topLevelBlocks);
// Naively places blocks from top to bottom, left to right.
for (RenderableBlock block : blocksToArrange) {
Rectangle bounds = block.getStackBounds();
if (positioningBounds.height + bounds.height > page.getJComponent().getHeight()) {
// need to go to next column
positioningBounds.x = positioningBounds.x + positioningBounds.width + BUFFER_BETWEEN_BLOCKS;
positioningBounds.width = 0;
positioningBounds.height = BUFFER_BETWEEN_BLOCKS;
}
block.setLocation(positioningBounds.x, positioningBounds.height);
// sets the x and y position for when workspace is unzoomed
block.setUnzoomedX(block.calculateUnzoomedX(positioningBounds.x));
block.setUnzoomedY(block.calculateUnzoomedY(positioningBounds.height));
block.moveConnectedBlocks();
// update positioning bounds
positioningBounds.width = Math.max(positioningBounds.width, bounds.width);
positioningBounds.height = positioningBounds.height + bounds.height + BUFFER_BETWEEN_BLOCKS;
if (positioningBounds.x + positioningBounds.width > page.getJComponent().getWidth()) {
// resize page to the difference
page.addPixelWidth(
positioningBounds.x + positioningBounds.width - page.getJComponent().getWidth());
}
}
}
/**
* @param block
* @requires block must be a valid block. That is, block may not be such that block == null ||
* block.getBlockID() == null || block.getBlockID() == Block.NULL || block.getBlockID() == -1
* || Block.getBlock(block.getBlockID()) == null ||
* Block.getBlock(block.getBlockID()).getGenusName() == null ||
* Block.getBlock(block.getBlockID()).getGenusName().length() == 0 ||
* Block.getBlock(block.getBlockID()).getBlockLabel() == null
* @modifies Objects modified by this method is undefined
* @effects The effects of this method is unknown
*/
private void addBlock(RenderableBlock block) {
// check invariant
if (block == null
|| block.getBlockID() == null
|| block.getBlockID().equals(Block.NULL)
|| workspace.getEnv().getBlock(block.getBlockID()) == null
|| workspace.getEnv().getBlock(block.getBlockID()).getGenusName() == null
|| workspace.getEnv().getBlock(block.getBlockID()).getGenusName().length() == 0
|| workspace.getEnv().getBlock(block.getBlockID()).getBlockLabel() == null) {
throw new RuntimeException(
"Invariant Violated: may not pass an invalid instance of renderabel block");
}
// ignore default arguments
block.ignoreDefaultArguments();
this.blockCanvas.getCanvas().add(block, 0);
block.setLocation(0, 0);
Long parentBlockID = this.focusManager.getFocusBlockID();
if (invalidBlockID(parentBlockID)) {
new BlockDropAnimator(
workspace,
this.focusManager.getCanvasPoint(),
block,
workspace.getEnv().getRenderableBlock(parentBlockID));
} else {
RenderableBlock parentBlock = workspace.getEnv().getRenderableBlock(parentBlockID);
new BlockDropAnimator(
workspace,
SwingUtilities.convertPoint(
parentBlock, this.focusManager.getBlockPoint(), this.blockCanvas.getCanvas()),
block,
workspace.getEnv().getRenderableBlock(parentBlockID));
}
this.focusManager.setFocus(block.getBlockID());
}
/** @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();
}
/**
* @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 loadDefaultArdublockProgram() {
/*
InputStream defaultArdublockProgram = this.getClass().getResourceAsStream(DEFAULT_ARDUBLOCK_PROGRAM_PATH);
final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setNamespaceAware(true);
final DocumentBuilder builder;
final Document doc;
try
{
builder = factory.newDocumentBuilder();
doc = builder.parse(defaultArdublockProgram);
final Element projectRoot = doc.getDocumentElement();
workspaceController.resetWorkspace();
workspaceController.loadProjectFromElement(projectRoot);
}
catch (ParserConfigurationException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (SAXException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IllegalArgumentException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
workspaceController.loadFreshWorkspace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
workspaceController.loadFreshWorkspace();
}
*/
Workspace workspace = workspaceController.getWorkspace();
Page page = workspace.getPageNamed("Main");
FactoryManager manager = workspace.getFactoryManager();
Block newBlock;
newBlock = new Block(workspace, "loop", false);
FactoryRenderableBlock factoryRenderableBlock =
new FactoryRenderableBlock(workspace, manager, newBlock.getBlockID());
RenderableBlock renderableBlock = factoryRenderableBlock.createNewInstance();
renderableBlock.setLocation(100, 100);
page.addBlock(renderableBlock);
}
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);
}
}
}