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);
}
}
}
/**
* @requires this.blockCanvas.getCanvas() != null
* @param character
*/
private void displayAutoCompletePanel(char character) {
// ====================>>>>>>>>>>>>>>>>>>>>>>>>>
// ====================focus coming in>>>>>>>>>> TODO
// ====================>>>>>>>>>>>>>>>>>>>>>>>>>
if (invalidBlockID(focusManager.getFocusBlockID())) {
// canvas has focus
this.blockCanvas.getCanvas().add(autoCompletePanel, JLayeredPane.DRAG_LAYER);
autoCompletePanel.setLocation(this.focusManager.getCanvasPoint());
autoCompletePanel.setVisible(true);
autoCompletePanel.requestFocus();
} else {
// renderableblock has focus
this.blockCanvas.getCanvas().add(autoCompletePanel, JLayeredPane.DRAG_LAYER);
RenderableBlock block = workspace.getEnv().getRenderableBlock(focusManager.getFocusBlockID());
Point location =
SwingUtilities.convertPoint(
block, this.focusManager.getBlockPoint(), this.blockCanvas.getCanvas());
location.translate(10, 10);
autoCompletePanel.setLocation(location);
autoCompletePanel.setVisible(true);
autoCompletePanel.requestFocus();
}
autoCompletePanel.setText(String.valueOf(character));
}
private void traverseFocus(Direction dir) {
if (isNullBlockInstance(focusManager.getFocusBlockID())) {
if (dir == Direction.UP) {
blockCanvas.getVerticalModel().setValue(blockCanvas.getVerticalModel().getValue() - 5);
} else if (dir == Direction.DOWN) {
blockCanvas.getVerticalModel().setValue(blockCanvas.getVerticalModel().getValue() + 5);
} else if (dir == Direction.LEFT) {
blockCanvas.getHorizontalModel().setValue(blockCanvas.getHorizontalModel().getValue() - 5);
} else if (dir == Direction.RIGHT) {
blockCanvas.getHorizontalModel().setValue(blockCanvas.getHorizontalModel().getValue() + 5);
} else if (dir == Direction.ESCAPE) {
// according to the focus manager, the canvas already
// has focus. So, just request focus again.
this.blockCanvas.getCanvas().requestFocus();
} else if (dir == Direction.ENTER) {
}
} else {
if (dir == Direction.UP) {
focusManager.focusBeforeBlock();
} else if (dir == Direction.DOWN) {
focusManager.focusAfterBlock();
} else if (dir == Direction.LEFT) {
focusManager.focusPrevBlock();
} else if (dir == Direction.RIGHT) {
focusManager.focusNextBlock();
} else if (dir == Direction.ESCAPE) {
RenderableBlock block =
workspace.getEnv().getRenderableBlock(focusManager.getFocusBlockID());
Point location =
SwingUtilities.convertPoint(block, new Point(0, 0), this.blockCanvas.getCanvas());
this.focusManager.setFocus(location, Block.NULL);
this.blockCanvas.getCanvas().requestFocus();
} else if (dir == Direction.ENTER) {
workspace
.getEnv()
.getRenderableBlock(focusManager.getFocusBlockID())
.switchToLabelEditingMode(true);
}
}
}
/**
* @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;
}
}