@Override
public void mouseMoved(MouseEvent evt) {
Point point = evt.getPoint();
updateCursor(editor.findView((Container) evt.getSource()), point);
DrawingView view = editor.findView((Container) evt.getSource());
updateCursor(view, point);
if (view == null || editor.getActiveView() != view) {
clearHoverHandles();
} else {
// Search first, if one of the selected figures contains
// the current mouse location. Only then search for other
// figures. This search sequence is consistent with the
// search sequence of the SelectionTool.
Figure figure = null;
Point2D.Double p = view.viewToDrawing(point);
for (Figure f : view.getSelectedFigures()) {
if (f.contains(p)) {
figure = f;
}
}
if (figure == null) {
figure = view.findFigure(point);
Drawing drawing = view.getDrawing();
while (figure != null && !figure.isSelectable()) {
figure = drawing.findFigureBehind(p, figure);
}
}
updateHoverHandles(view, figure);
}
}
protected DrawingView createDrawingView(Drawing newDrawing) {
Dimension d = getDrawingViewSize();
DrawingView newDrawingView = new StandardDrawingView(this, d.width, d.height);
newDrawingView.setDrawing(newDrawing);
fireViewCreatedEvent(newDrawingView);
return newDrawingView;
}
/**
* Connects the figure to the new target. If there is no new target the connection reverts to its
* original one.
*/
public void invokeEnd(int x, int y, int anchorX, int anchorY, DrawingView view) {
Connector target = findConnectionTarget(x, y, view.drawing());
if (target == null) {
target = fOriginalTarget;
}
setPoint(x, y);
connect(target);
getConnection().updateConnection();
Connector oldConnector =
((ChangeConnectionHandle.UndoActivity) getUndoActivity()).getOldConnector();
// there has been no change so there is nothing to undo
if ((oldConnector == null)
|| (target() == null)
|| (oldConnector.owner() == target().owner())) {
setUndoActivity(null);
} else {
getUndoActivity().setAffectedFigures(new SingleFigureEnumerator(getConnection()));
}
if (getTargetFigure() != null) {
getTargetFigure().connectorVisibility(false);
setTargetFigure(null);
}
}
/** Refreshes the drawing if there is some accumulated damage */
public synchronized void checkDamage() {
Iterator each = drawing().drawingChangeListeners();
while (each.hasNext()) {
Object l = each.next();
if (l instanceof DrawingView) {
((DrawingView) l).repairDamage();
}
}
}
/** Finds a new target of the connection. */
public void invokeStep(int x, int y, int anchorX, int anchorY, DrawingView view) {
Point p = new Point(x, y);
Figure f = findConnectableFigure(x, y, view.drawing());
// track the figure containing the mouse
if (f != getTargetFigure()) {
if (getTargetFigure() != null) {
getTargetFigure().connectorVisibility(false);
}
setTargetFigure(f);
if (getTargetFigure() != null) {
getTargetFigure().connectorVisibility(true);
}
}
Connector target = findConnectionTarget(p.x, p.y, view.drawing());
if (target != null) {
p = Geom.center(target.displayBox());
}
setPoint(p.x, p.y);
}
/** Handles a mouse click. */
@Override
public boolean handleMouseClick(Point2D.Double p, MouseEvent evt, DrawingView view) {
if (evt.getClickCount() == 2 && view.getHandleDetailLevel() % 2 == 0) {
willChange();
final int index = splitSegment(p, 5f / view.getScaleFactor());
if (index != -1) {
final BezierPath.Node newNode = getNode(index);
fireUndoableEditHappened(
new AbstractUndoableEdit() {
private static final long serialVersionUID = 1L;
@Override
public String getPresentationName() {
ResourceBundleUtil labels =
ResourceBundleUtil.getBundle("org.jhotdraw.draw.Labels");
return labels.getString("edit.bezierPath.splitSegment.text");
}
@Override
public void redo() throws CannotRedoException {
super.redo();
willChange();
addNode(index, newNode);
changed();
}
@Override
public void undo() throws CannotUndoException {
super.undo();
willChange();
removeNode(index);
changed();
}
});
changed();
evt.consume();
return true;
}
}
return false;
}
/** Draws a pattern background pattern by replicating an image. */
protected void drawPattern(Graphics g, Image image, DrawingView view) {
int iwidth = image.getWidth(view);
int iheight = image.getHeight(view);
Dimension d = view.getSize();
int x = 0;
int y = 0;
while (y < d.height) {
while (x < d.width) {
g.drawImage(image, x, y, view);
x += iwidth;
}
y += iheight;
x = 0;
}
}
/**
* Tracks the end of the interaction.
*
* @param x the current x position
* @param y the current y position
* @param anchorX the x position where the interaction started
* @param anchorY the y position where the interaction started
*/
public void invokeEnd(int x, int y, int anchorX, int anchorY, DrawingView view) {
invokeEnd(x - anchorX, y - anchorY, view.drawing());
}
/**
* @param x the x position where the interaction started
* @param y the y position where the interaction started
* @param view the handles container
*/
public void invokeStart(int x, int y, DrawingView view) {
invokeStart(x, y, view.drawing());
}
/**
* Creates the drawing view used in this application. You need to override this method to use a
* DrawingView subclass in your application. By default a standard DrawingView is returned.
*/
protected DrawingView createDrawingView() {
DrawingView createdDrawingView = createDrawingView(createDrawing());
createdDrawingView.drawing().setTitle(getDefaultDrawingTitle());
return createdDrawingView;
}
@Override
public void mousePressed(MouseEvent evt) {
if (getView() != null && getView().isEnabled()) {
super.mousePressed(evt);
DrawingView view = getView();
Handle handle = view.findHandle(anchor);
Tool newTracker = null;
if (handle != null) {
newTracker = getHandleTracker(handle);
} else {
Figure figure;
Drawing drawing = view.getDrawing();
Point2D.Double p = view.viewToDrawing(anchor);
if (isSelectBehindEnabled()
&& (evt.getModifiersEx() & (InputEvent.ALT_DOWN_MASK | InputEvent.CTRL_DOWN_MASK))
!= 0) {
// Select a figure behind the current selection
figure = view.findFigure(anchor);
while (figure != null && !figure.isSelectable()) {
figure = drawing.findFigureBehind(p, figure);
}
HashSet<Figure> ignoredFigures = new HashSet<Figure>(view.getSelectedFigures());
ignoredFigures.add(figure);
Figure figureBehind =
view.getDrawing().findFigureBehind(view.viewToDrawing(anchor), ignoredFigures);
if (figureBehind != null) {
figure = figureBehind;
}
} else {
// Note: The search sequence used here, must be
// consistent with the search sequence used by the
// DefaultHandleTracker, the DefaultSelectAreaTracker and DelegationSelectionTool.
// If possible, continue to work with the current selection
figure = null;
if (isSelectBehindEnabled()) {
for (Figure f : view.getSelectedFigures()) {
if (f.contains(p)) {
figure = f;
break;
}
}
}
// If the point is not contained in the current selection,
// search for a figure in the drawing.
if (figure == null) {
figure = view.findFigure(anchor);
while (figure != null && !figure.isSelectable()) {
figure = drawing.findFigureBehind(p, figure);
}
}
}
if (figure != null && figure.isSelectable()) {
newTracker = getDragTracker(figure);
} else {
if (!evt.isShiftDown()) {
view.clearSelection();
view.setHandleDetailLevel(0);
}
newTracker = getSelectAreaTracker();
}
}
if (newTracker != null) {
setTracker(newTracker);
}
tracker.mousePressed(evt);
}
}