Beispiel #1
0
  /**
   * 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());
  }
Beispiel #3
0
 /** @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();
 }
Beispiel #4
0
  /**
   * @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();
  }
Beispiel #5
0
  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);
      }
    }
  }