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);
}
}
}
