@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);
}
}
private Figure findConnectableFigure(Point2D.Double p, Drawing drawing) {
for (Figure f : drawing.getFiguresFrontToBack()) {
if (!f.includes(getOwner()) && f.canConnect() && f.contains(p)) {
return f;
}
}
return null;
}
public Figure findFigure(Point2D.Double p) {
Collection<Figure> c = quadTree.findContains(p);
switch (c.size()) {
case 0:
return null;
case 1:
{
Figure f = c.iterator().next();
return (f.contains(p)) ? f : null;
}
default:
{
for (Figure f : getFiguresFrontToBack()) {
if (c.contains(f) && f.contains(p)) return f;
}
return null;
}
}
}
@Override
public Figure findFigureInside(Point2D.Double p) {
Collection<Figure> c = quadTree.findContains(p);
for (Figure f : getFiguresFrontToBack()) {
if (c.contains(f) && f.contains(p)) {
return f.findFigureInside(p);
}
}
return null;
}
public Figure findFigureExcept(Point2D.Double p, Collection ignore) {
Collection<Figure> c = quadTree.findContains(p);
switch (c.size()) {
case 0:
{
return null;
}
case 1:
{
Figure f = c.iterator().next();
return (!ignore.contains(f) || !f.contains(p)) ? null : f;
}
default:
{
for (Figure f : getFiguresFrontToBack()) {
if (!ignore.contains(f) && f.contains(p)) return f;
}
return null;
}
}
}
public Figure findFigureBehind(Point2D.Double p, Figure figure) {
boolean isBehind = false;
for (Figure f : getFiguresFrontToBack()) {
if (isBehind) {
if (f.isVisible() && f.contains(p)) {
return f;
}
} else {
isBehind = figure == f;
}
}
return null;
}
public Figure findFigureBehind(Point2D.Double p, Collection<Figure> figures) {
int inFrontOf = figures.size();
for (Figure f : getFiguresFrontToBack()) {
if (inFrontOf == 0) {
if (f.isVisible() && f.contains(p)) {
return f;
}
} else {
if (figures.contains(f)) {
inFrontOf--;
}
}
}
return null;
}
@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);
}
}