/**
* @requires none
* @modifies focusManager.focusblock && focusManager.focuspoint && blockCanvas
* @effects Do nothing if "genusName" does not map to a valid block. Otherwise, create and add a
* new block with matching genus and label properties to one of the following: 1. the current
* block with focus at (0,0) relative to that block. 2. the current block with focus at next
* applicable socket location 3. the canvas at the last mouse click point. If label is not an
* empty string, then set the block label to that string. Then update any focus and block
* connections.
*/
protected void automateBlockInsertion(
Workspace workspace, TextualFactoryBlock block, String label) {
TypeBlockManager typeBlockManager = workspace.getTypeBlockManager();
if (!typeBlockManager.isEnabled()) {
System.err.println("AutoMateBlockInsertion invoked but typeBlockManager is disabled.");
return;
}
RenderableBlock createdRB = createRenderableBlock(block);
// sets the label of the block to whatever the user typed (should only be numbers)
if (label != EMPTY_LABEL_NAME) {
createdRB.getBlock().setBlockLabel(label);
}
// changes the plus number labels back to +
if (label.equals(NUMBER_PLUS_OPERATION_LABEL)) {
createdRB.getBlock().setBlockLabel(PLUS_OPERATION_LABEL);
}
// changes the plus text labels back to +
if (label.equals(TEXT_PLUS_OPERATION_LABEL)) {
createdRB.getBlock().setBlockLabel(PLUS_OPERATION_LABEL);
}
if (createdRB == null) {
return;
} else {
typeBlockManager.addBlock(createdRB);
}
}
public void addLoadedBlocks(Collection<RenderableBlock> loadedBlocks, boolean importingPage) {
for (RenderableBlock rb : loadedBlocks) {
if (rb != null) {
// add graphically
getRBParent().addToBlockLayer(rb);
rb.setHighlightParent(this.getRBParent());
// System.out.println("loading rb to canvas: "+rb+" at: "+rb.getBounds());
// add internallly
workspace.notifyListeners(
new WorkspaceEvent(workspace, this, rb.getBlockID(), WorkspaceEvent.BLOCK_ADDED));
if (importingPage) {
workspace.getEnv().getBlock(rb.getBlockID()).setFocus(false);
rb.resetHighlight();
rb.clearBufferedImage();
}
}
}
// now we need to redraw all the blocks now that all renderable blocks
// within this page have been loaded, to update the socket dimensions of
// blocks, etc.
for (RenderableBlock rb : this.getTopLevelBlocks()) {
rb.redrawFromTop();
if (rb.isCollapsed()) {
// This insures that blocks connected to a collapsed top level block
// are located properly and have the proper visibility set.
// This doesn't work until all blocks are loaded and dimensions are set.
rb.updateCollapse();
}
}
this.pageJComponent.revalidate();
this.pageJComponent.repaint();
}
public Node getSaveNode(Document document) {
Element pageElement = document.createElement("Page");
pageElement.setAttribute("page-name", getPageName());
pageElement.setAttribute(
"page-color",
getPageColor().getRed() + " " + getPageColor().getGreen() + " " + getPageColor().getBlue());
pageElement.setAttribute("page-width", String.valueOf((int) getAbstractWidth()));
if (fullview) {
pageElement.setAttribute("page-infullview", "yes");
} else {
pageElement.setAttribute("page-infullview", "no");
}
if (pageDrawer != null) {
pageElement.setAttribute("page-drawer", pageDrawer);
}
if (pageId != null) {
pageElement.setAttribute("page-id", pageId);
}
// retrieve save strings of blocks within this Page
Collection<RenderableBlock> blocks = this.getBlocks();
if (blocks.size() > 0) {
Element pageBlocksElement = document.createElement("PageBlocks");
for (RenderableBlock rb : blocks) {
pageBlocksElement.appendChild(rb.getSaveNode(document));
}
pageElement.appendChild(pageBlocksElement);
}
return pageElement;
}
/**
* @param block - the textual block from which a new RenderableBlock will be constructed
* @requires
* @modifies nothing
* @effects none
* @return new RenderableBlock instance from the TextualFactoryBlock or null if not possible.
*/
private RenderableBlock createRenderableBlock(TextualFactoryBlock block) {
// if textual wrapper is null, return a null instance of RenderableBlock.
if (block == null) {
return null;
}
// if FactoryBlock wrapped in textual wrapper is invalid, return null RenderableBlock instance.
if (block.getfactoryBlock() == null
|| block.getfactoryBlock().getBlockID().equals(Block.NULL)) {
return null;
}
// create and get the RenderableBloc instance associated with the Textual wrapper's FactoryBlock
RenderableBlock createdRB = block.getfactoryBlock().createNewInstance();
// if the above instance of RenderableBlock is invalid (null or points to null)
// then DO NOT insert a new block, DO NOT change the focus.
if (createdRB == null || isNullBlockInstance(createdRB.getBlockID())) {
throw new RuntimeException(
"Invariant Violated:" + "May not drop null instances of Renderable Blocks");
}
// Please keep the above check rep because it does not
// make any sense to have an exisitn valid
// FactoryRenderableBlock point to some non-existing
// block. In other words, why would you have a factory
// that churns out invalid products?
return createdRB;
}
/**
* @param childBlock
* @param widget
* @requires widget != null
* @modifies
* @effects Does nothing if: childBlock is invalid (null) Otherwise, remove childBlock from it's
* parent block if the childBlock has a parent. If it does not have a parent, do nothing.
*/
private void disconnectBlock(Block childBlock, WorkspaceWidget widget) {
if (childBlock == null || invalidBlockID(childBlock.getBlockID())) {
return;
}
BlockConnector childPlug = BlockLinkChecker.getPlugEquivalent(childBlock);
if (childPlug == null || !childPlug.hasBlock() || isNullBlockInstance(childPlug.getBlockID())) {
return;
}
Block parentBlock = workspace.getEnv().getBlock(childPlug.getBlockID());
BlockConnector parentSocket = parentBlock.getConnectorTo(childBlock.getBlockID());
if (parentSocket == null) {
return;
}
// disconector if child connector exists and has a block connected to it
BlockLink link =
BlockLink.getBlockLink(workspace, childBlock, parentBlock, childPlug, parentSocket);
if (link == null) {
return;
}
link.disconnect();
RenderableBlock parentRenderable =
workspace.getEnv().getRenderableBlock(parentBlock.getBlockID());
if (parentRenderable == null) {
throw new RuntimeException(
"INCONSISTANCY VIOLATION: "
+ "parent block was valid, non-null, and existed.\n\tBut yet, when we get it's renderable"
+ "representation, we recieve a null instance.\n\tIf the Block instance of an ID is non-null"
+ "then its graphical RenderableBlock should be non-null as well");
}
parentRenderable.blockDisconnected(parentSocket);
workspace.notifyListeners(
new WorkspaceEvent(workspace, widget, link, WorkspaceEvent.BLOCKS_DISCONNECTED));
}
/**
* @param workspace The workspace in use
* @param genusName
* @param label
* @requires if (label != null) then associated block.isLabelEditable() should return true
* @modifies focusManager.focusblock && focusManager.focuspoint && blockCanvas
* @effects Do nothing if "genusName" does not map to a valid block. Otherwise, create and add a
* new block with matching genus and label properties to one of the following: 1. the current
* block with focus at (0,0) relative to that block. 2. the current block with focus at next
* applicable socket location 3. the canvas at the last mouse click point. Then update any
* focus and block connections.
*/
protected void automateBlockInsertion(Workspace workspace, String genusName, String label) {
TypeBlockManager typeBlockManager = workspace.getTypeBlockManager();
if (!typeBlockManager.isEnabled()) {
System.err.println("AutoMateBlockInsertion invoked but typeBlockManager is disabled.");
return;
}
// if genus is null, DO NOT insert a new block, DO NOT change the focus
if (genusName == null) {
return;
}
// get matching textual Block
RenderableBlock createdRB = BlockUtilities.getBlock(workspace, genusName, null);
if (createdRB == null) {
return;
} else {
// change name of block IF AN DONLY IFF a label was passed
// and the block's label was editable and the block
// does not need to have a unique label
if (label != null
&& workspace.getEnv().getBlock(createdRB.getBlockID()).isLabelEditable()
&& !workspace.getEnv().getBlock(createdRB.getBlockID()).labelMustBeUnique()) {
workspace.getEnv().getBlock(createdRB.getBlockID()).setBlockLabel(label);
}
// add block
typeBlockManager.addBlock(createdRB);
}
}
/**
* @param renderable
* @param widget
* @param container
* @requires renderable != null && renderable.blockID != null && renderable.blockID != Block.NULL
* && widget != null && container != null
* @modifies renderable && children blocks connected to renderable
* @effects removes renderable from container and widget and re-renders renderable block, widget,
* and container appropriately. Repeats for all of renderable's children.
*/
private void removeBlock(
RenderableBlock renderable, WorkspaceWidget widget, Container container) {
widget.removeBlock(renderable);
container.remove(renderable);
container.validate();
container.repaint();
renderable.setParentWidget(null);
// Workspace.getInstance().notifyListeners(new WorkspaceEvent(widget, renderable.getBlockID(),
// WorkspaceEvent.BLOCK_REMOVED));
for (BlockConnector child :
BlockLinkChecker.getSocketEquivalents(
workspace.getEnv().getBlock(renderable.getBlockID()))) {
if (child == null || child.getBlockID().equals(Block.NULL)) {
continue;
}
RenderableBlock childRenderable = workspace.getEnv().getRenderableBlock(child.getBlockID());
if (childRenderable == null) {
continue;
}
removeBlock(childRenderable, widget, container);
}
if (renderable.hasComment()) {
renderable.removeComment();
}
workspace.notifyListeners(
new WorkspaceEvent(
workspace, widget, renderable.getBlockID(), WorkspaceEvent.BLOCK_REMOVED));
}
/** @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();
}
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);
}
/**
* Helper method that recursively finds and removes all the blocks connected to the bottom of this
* block, including this block.
*
* @param afterBlock - RenderableBlock we start removing at
* @param widget - WorkspaceWidget that the block is using
* @param container - Container the block is stored in
*/
private void removeAfterBlock(
RenderableBlock afterBlock, WorkspaceWidget widget, Container container) {
if (workspace.getEnv().getBlock(afterBlock.getBlockID()).getAfterBlockID() != Block.NULL) {
removeAfterBlock(
workspace
.getEnv()
.getRenderableBlock(
workspace.getEnv().getBlock(afterBlock.getBlockID()).getAfterBlockID()),
widget,
container);
}
removeChildrenBlock(afterBlock, widget, container);
}
/**
* 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());
}
}
}
/** @overrides ISupportMomento.getState */
@Override
public Object getState() {
PageState state = new PageState();
// Populate basic page information
state.name = getPageName();
state.id = getPageId();
state.color = getPageColor();
state.width = this.pageJComponent.getWidth();
// Fill in block information
for (RenderableBlock rb : this.getBlocks()) {
state.renderableBlocks.put(rb.getBlockID(), rb.getState());
}
return state;
}
//////////////////////////
// SAVING AND LOADING //
//////////////////////////
public ArrayList<RenderableBlock> loadPageFrom(Node pageNode, boolean importingPage) {
// note: this code is duplicated in BlockCanvas.loadSaveString().
NodeList pageChildren = pageNode.getChildNodes();
Node pageChild;
ArrayList<RenderableBlock> loadedBlocks = new ArrayList<RenderableBlock>();
HashMap<Long, Long> idMapping = importingPage ? new HashMap<Long, Long>() : null;
if (importingPage) {
reset();
}
for (int i = 0; i < pageChildren.getLength(); i++) {
pageChild = pageChildren.item(i);
if (pageChild.getNodeName().equals("PageBlocks")) {
NodeList blocks = pageChild.getChildNodes();
Node blockNode;
for (int j = 0; j < blocks.getLength(); j++) {
blockNode = blocks.item(j);
RenderableBlock rb = RenderableBlock.loadBlockNode(workspace, blockNode, this, idMapping);
// save the loaded blocks to add later
loadedBlocks.add(rb);
}
break; // should only have one set of page blocks
}
}
return loadedBlocks;
}
/**
* @return a collection of top level blocks within this page (blocks with no parents that and are
* the first block of each stack) or an empty collection if no blocks are found on this page.
*/
public Collection<RenderableBlock> getTopLevelBlocks() {
List<RenderableBlock> topBlocks = new ArrayList<RenderableBlock>();
for (RenderableBlock renderable : this.getBlocks()) {
Block block = workspace.getEnv().getBlock(renderable.getBlockID());
if (block.getPlug() == null
|| block.getPlugBlockID() == null
|| block.getPlugBlockID().equals(Block.NULL)) {
if (block.getBeforeConnector() == null
|| block.getBeforeBlockID() == null
|| block.getBeforeBlockID().equals(Block.NULL)) {
topBlocks.add(renderable);
continue;
}
}
}
return topBlocks;
}
/**
* @param newName - the new name of this page.
* @requires newName != null
* @modifies this.name
* @effects sets the name of this page to be newName.
*/
public void setPageName(String newName) {
if (pageDrawer.equals(this.pageJComponent.getName())) {
pageDrawer = newName;
}
this.pageJComponent.setName(newName);
this.collapse.setText(newName);
// iterate through blocks and update the ones that are page label enabled
for (RenderableBlock block : this.getBlocks()) {
if (workspace.getEnv().getBlock(block.getBlockID()).isPageLabelSetByPage()) {
workspace.getEnv().getBlock(block.getBlockID()).setPageLabel(this.getPageName());
block.repaintBlock();
}
}
PageChangeEventManager.notifyListeners();
}
@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
* @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());
}
private void removeChildrenBlock(
RenderableBlock renderable, WorkspaceWidget widget, Container container) {
widget.removeBlock(renderable);
container.remove(renderable);
container.validate();
container.repaint();
renderable.setParentWidget(null);
// Workspace.getInstance().notifyListeners(new WorkspaceEvent(widget, renderable.getBlockID(),
// WorkspaceEvent.BLOCK_REMOVED));
for (BlockConnector child : workspace.getEnv().getBlock(renderable.getBlockID()).getSockets()) {
if (child == null || child.getBlockID().equals(Block.NULL)) {
continue;
}
RenderableBlock childRenderable = workspace.getEnv().getRenderableBlock(child.getBlockID());
if (childRenderable == null) {
continue;
}
removeBlock(childRenderable, widget, container);
}
// If it is a procedure block, we want to delete the entire stack
if (workspace.getEnv().getBlock(renderable.getBlockID()).isProcedureDeclBlock()) {
if (workspace.getEnv().getBlock(renderable.getBlockID()).getAfterBlockID() != Block.NULL) {
removeAfterBlock(
workspace
.getEnv()
.getRenderableBlock(
workspace.getEnv().getBlock(renderable.getBlockID()).getAfterBlockID()),
widget,
container);
this.disconnectBlock(
workspace
.getEnv()
.getBlock(workspace.getEnv().getBlock(renderable.getBlockID()).getAfterBlockID()),
widget);
}
}
if (renderable.hasComment()) {
renderable.removeComment();
}
workspace.notifyListeners(
new WorkspaceEvent(
workspace, widget, renderable.getBlockID(), WorkspaceEvent.BLOCK_REMOVED));
}
/** @overrides ISupportMomento.loadState() */
@Override
public void loadState(Object memento) {
assert (memento instanceof PageState) : "ISupportMemento contract violated in Page";
if (memento instanceof PageState) {
PageState state = (PageState) memento;
// load basic page information
this.setPageName(state.name);
this.setPageId(state.id);
this.setPageColor(state.color);
this.setPixelWidth(state.width);
// Load block information
Map<Long, Object> renderableBlockStates = state.renderableBlocks;
List<Long> unloadedRenderableBlockStates = new LinkedList<Long>();
List<Long> loadedBlocks = new LinkedList<Long>();
for (Long id : renderableBlockStates.keySet()) {
unloadedRenderableBlockStates.add(id);
}
// First, load all the blocks that are in the state to be loaded
// against all the blocks that already exist.
for (RenderableBlock existingBlock : getBlocks()) {
Long existingBlockID = existingBlock.getBlockID();
if (renderableBlockStates.containsKey(existingBlockID)) {
existingBlock.loadState(renderableBlockStates.get(existingBlockID));
unloadedRenderableBlockStates.remove(existingBlockID);
loadedBlocks.add(existingBlockID);
}
}
ArrayList<RenderableBlock> blocksToRemove = new ArrayList<RenderableBlock>();
// Now, find all the blocks that don't exist in the save state and flag them to be removed.
for (RenderableBlock existingBlock : this.getBlocks()) {
Long existingBlockID = existingBlock.getBlockID();
if (!loadedBlocks.contains(existingBlockID)) {
blocksToRemove.add(existingBlock);
}
}
// This loop is necessary to avoid a concurrent modification error that occurs
// if the loop above removes the block while iterating over an unmodifiable
// iterator.
for (RenderableBlock toBeRemovedBlock : blocksToRemove) {
this.removeBlock(toBeRemovedBlock);
}
// Finally, add all the remaining blocks that weren't there before
ArrayList<RenderableBlock> blocksToAdd = new ArrayList<RenderableBlock>();
for (Long newBlockID : unloadedRenderableBlockStates) {
RenderableBlock newBlock = new RenderableBlock(workspace, this, newBlockID);
newBlock.loadState(renderableBlockStates.get(newBlockID));
blocksToAdd.add(newBlock);
}
this.addBlocks(blocksToAdd);
this.pageJComponent.repaint();
}
}
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);
}
}
}
public void highlightBlock(RenderableBlock block) {
block.updateInSearchResults(true);
highlightBlockSet.add(block);
}
public void cancelHighlightBlock(RenderableBlock block) {
block.updateInSearchResults(false);
highlightBlockSet.remove(block);
}
/** @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);
}
/**
* @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();
}
/**
* @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);
}
}
public void resetHightlightBlock() {
for (RenderableBlock rb : highlightBlockSet) {
rb.updateInSearchResults(false);
}
highlightBlockSet.clear();
}
/**
* @requires the current block with focus must exist with non-null ID in a non-null widget with a
* non-null parent
* @modifies the current block with focus
* @effects removes the current block with focus and children from the GUI and destroys the link
* between the block with focus and it's parent block if one exist and children blocks if it
* has childrens.
*/
private void deleteBlockAndChildren() {
// ====================>>>>>>>>>>>>>>>>>>>>>>>>>
// ====================focus coming in>>>>>>>>>>TODO
// ====================>>>>>>>>>>>>>>>>>>>>>>>>>
// Do not delete null block references. Otherwise, get Block and RenderableBlock instances.
if (isNullBlockInstance(focusManager.getFocusBlockID())) {
throw new RuntimeException("TypeBlockManager: deleting a null block references.");
}
Block block = workspace.getEnv().getBlock(focusManager.getFocusBlockID());
RenderableBlock renderable = workspace.getEnv().getRenderableBlock(block.getBlockID());
// get workspace widget associated with current focus
WorkspaceWidget widget = renderable.getParentWidget();
// do not delete block instances in null widgets
if (widget == null) {
throw new RuntimeException("TypeBlockManager: do not delete blocks with no parent widget.");
// return;
}
// get parent container of this graphical representation
Container container = renderable.getParent();
// do not delete block instances in null parents
if (container == null) {
throw new RuntimeException(
"TypeBlockManager: do not delete blocks with no parent container.");
// return;
}
// get the Block's location on the canvas
Point location =
SwingUtilities.convertPoint(renderable, new Point(0, 0), this.blockCanvas.getCanvas());
// for every valid and active connection, disconnect it.
Long parentID = null;
if (validConnection(block.getPlug())) {
parentID = block.getPlugBlockID();
this.disconnectBlock(block, widget);
if (validConnection(block.getAfterConnector())) {
disconnectBlock(workspace.getEnv().getBlock(block.getAfterBlockID()), widget);
}
} else if (validConnection(block.getBeforeConnector())) {
parentID = block.getBeforeBlockID();
BlockConnector parentConnectorToBlock =
workspace.getEnv().getBlock(parentID).getConnectorTo(block.getBlockID());
this.disconnectBlock(block, widget);
if (validConnection(block.getAfterConnector())) {
Long afterBlockID = block.getAfterBlockID();
disconnectBlock(workspace.getEnv().getBlock(afterBlockID), widget);
if (parentID != null) {
BlockLink link =
BlockLinkChecker.canLink(
workspace,
workspace.getEnv().getBlock(parentID),
workspace.getEnv().getBlock(afterBlockID),
parentConnectorToBlock,
workspace.getEnv().getBlock(afterBlockID).getBeforeConnector());
if (link != null) {
link.connect();
workspace.notifyListeners(
new WorkspaceEvent(
workspace,
workspace.getEnv().getRenderableBlock(link.getPlugBlockID()).getParentWidget(),
link,
WorkspaceEvent.BLOCKS_CONNECTED));
workspace.getEnv().getRenderableBlock(link.getPlugBlockID()).repaintBlock();
workspace.getEnv().getRenderableBlock(link.getPlugBlockID()).repaint();
workspace.getEnv().getRenderableBlock(link.getPlugBlockID()).moveConnectedBlocks();
workspace.getEnv().getRenderableBlock(link.getSocketBlockID()).repaintBlock();
workspace.getEnv().getRenderableBlock(link.getSocketBlockID()).repaint();
}
}
}
} else if (validConnection(block.getAfterConnector())) {
parentID = block.getAfterBlockID();
}
// remove form widget and container
this.removeChildrenBlock(renderable, widget, container);
// <<<<<<<<<<<<<<<<<<<<<<<<<<==========================
// <<<<<<<<<<<<<<<<<<<<<<<<<<focus changing, coming out TODO
// <<<<<<<<<<<<<<<<<<<<<<<<<<==========================
// If the deleted block had a parent, give the parent the focus,
// Otherwise, give the focus to the canvas (NOT BLOCK CANVAS)
if (invalidBlockID(parentID)) {
this.focusManager.setFocus(location, Block.NULL);
this.blockCanvas.getCanvas().requestFocus();
return;
} else {
this.focusManager.setFocus(parentID);
this.blockCanvas.getCanvas().requestFocus();
return;
}
}
