protected CubicPath[] getCubicPaths(ShapeCreationPanel scp) {
CubicPath[] paths = (CubicPath[]) scp.getClientProperty(SHAPES_MIRROR);
if (paths == null) {
List<CubicPath> mirrorList = new ArrayList<CubicPath>();
Shape[] dataModel = scp.getDataModel().getShapes();
for (int a = 0; a < dataModel.length; a++) {
CubicPath copy = new CubicPath();
copy.append(dataModel[a]);
mirrorList.add(copy);
}
paths = mirrorList.toArray(new CubicPath[mirrorList.size()]);
scp.putClientProperty(SHAPES_MIRROR, paths);
refreshScaleFactor(scp);
}
return paths;
}
/** @param mouseLoc the mouse location, relative to the panel (pre-transform) */
private Selection getSelection(ShapeCreationPanel scp, Point2D mouseLoc) {
AffineTransform tx = scp.getTransform();
CubicPath[] paths = getCubicPaths(scp);
Integer shapeIntersection = null;
int r = scp.getHandleSize() / 2;
Active active = scp.getHandlesActive();
for (int shapeIndex = paths.length - 1; shapeIndex >= 0; shapeIndex--) {
if (active.supports(scp, shapeIndex)) {
CubicPath path = paths[shapeIndex];
for (int nodeIndex = 0; nodeIndex < path.getNodeCount(); nodeIndex++) {
Point2D p2 = path.getPrevControlForNode(nodeIndex, null);
if (p2 != null) {
tx.transform(p2, p2);
if (hit(scp, mouseLoc, p2)) {
return new Selection(shapeIndex, nodeIndex, Handle.PREVIOUS_CONTROL);
}
}
p2 = path.getNode(nodeIndex, null);
if (p2 != null) {
tx.transform(p2, p2);
if (hit(scp, mouseLoc, p2)) {
return new Selection(shapeIndex, nodeIndex, Handle.PRIMARY);
}
}
p2 = path.getNextControlForNode(nodeIndex, null);
if (p2 != null) {
tx.transform(p2, p2);
if (hit(scp, mouseLoc, p2)) {
return new Selection(shapeIndex, nodeIndex, Handle.NEXT_CONTROL);
}
}
}
if (shapeIntersection == null) {
Shape outline =
new BasicStroke(1, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND)
.createStrokedShape(path);
if (outline.intersects(mouseLoc.getX() - r, mouseLoc.getY() - r, 2 * r, 2 * r)) {
shapeIntersection = shapeIndex;
}
}
}
}
return getSelectedShape(scp, mouseLoc);
}
@Override
public void mousePressed(MouseEvent e) {
ShapeCreationPanel scp = (ShapeCreationPanel) e.getComponent();
scp.requestFocus();
boolean isCreating = ShapeCreationPanel.MODE_CREATE.equals(scp.getMode());
if (e.getClickCount() > 1 && isCreating) {
scp.setMode(ShapeCreationPanel.MODE_DEFAULT);
return;
}
lastUntransformedX = e.getX();
lastUntransformedY = e.getY();
Point2D p = new Point2D.Double(e.getX(), e.getY());
try {
scp.getTransform().createInverse().transform(p, p);
} catch (NoninvertibleTransformException e2) {
throw new RuntimeException(e2);
}
float x = (float) p.getX();
float y = (float) p.getY();
clickX = x;
clickY = y;
if (isCreating) {
int selectedShape = scp.getSelectionModel().getSelection().getShapeIndex();
if (selectedShape == -1) {
GeneralPath path = new GeneralPath();
path.moveTo(x, y);
int newIndex = scp.getDataModel().addShape(path);
scp.getSelectionModel().select(newIndex, 0, Handle.NEXT_CONTROL);
} else {
/**
* We didn't give a next control point to the *last* node yet. Now we do. If the last
* node in a path has a next control point: that path will be closed.
*/
CubicPath[] paths = getCubicPaths(scp);
CubicPath path = paths[selectedShape];
int i = path.getNodeCount() - 1;
Point2D lastPoint = path.getNode(i, null);
Point2D lastPointCtrlPoint = path.getPrevControlForNode(i, null);
if (lastPointCtrlPoint == null) lastPointCtrlPoint = lastPoint;
double dx = lastPoint.getX() - lastPointCtrlPoint.getX();
double dy = lastPoint.getY() - lastPointCtrlPoint.getY();
path.setNextControlForNode(
i, new Point2D.Double(lastPoint.getX() + dx, lastPoint.getY() + dy));
path.lineTo(x, y);
changingDataModel.add(Thread.currentThread());
try {
scp.getDataModel().setShape(selectedShape, path);
} finally {
changingDataModel.remove(Thread.currentThread());
}
}
} else {
Selection selection = getSelection(scp, e.getPoint());
scp.getSelectionModel().select(selection);
}
}
@Override
protected void paintControls(Graphics2D g, ShapeCreationPanel scp) {
g = (Graphics2D) g.create();
Rectangle2D r = new Rectangle2D.Float();
Ellipse2D e = new Ellipse2D.Float();
Line2D line = new Line2D.Float();
double z = ((double) scp.getHandleSize()) / 2.0;
AffineTransform tx = scp.getTransform();
try {
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setColor(Color.black);
g.setStroke(new BasicStroke(1));
CubicPath[] paths = getCubicPaths(scp);
Selection selection = scp.getSelectionModel().getSelection();
Selection indication = scp.getSelectionModel().getIndication();
for (int shapeIndex = 0; shapeIndex < paths.length; shapeIndex++) {
if (scp.getHandlesActive().supports(scp, shapeIndex)) {
CubicPath path = paths[shapeIndex];
if (path != null && path.isEmpty() == false) {
for (int nodeIndex = 0; nodeIndex < path.getNodeCount(); nodeIndex++) {
Point2D nodePoint = path.getNode(nodeIndex, null);
nodePoint = tx.transform(nodePoint, null);
Point2D p = path.getPrevControlForNode(nodeIndex, null);
if (p != null) {
p = tx.transform(p, null);
g.setColor(Color.lightGray);
line.setLine(nodePoint, p);
g.draw(line);
e.setFrame(p.getX() - z, p.getY() - z, 2 * z, 2 * z);
if (selection.getShapeIndex() == shapeIndex
&& selection.getNodeIndex() == nodeIndex
&& Handle.PREVIOUS_CONTROL.equals(selection.getHandle())) {
g.setColor(Color.black);
} else if (indication.getShapeIndex() == shapeIndex
&& indication.getNodeIndex() == nodeIndex
&& Handle.PREVIOUS_CONTROL.equals(indication.getHandle())) {
g.setColor(Color.gray);
} else {
g.setColor(Color.white);
}
g.fill(e);
g.setColor(Color.black);
g.draw(e);
}
p = path.getNextControlForNode(nodeIndex, null);
if (p != null) {
p = tx.transform(p, null);
g.setColor(Color.lightGray);
line.setLine(nodePoint, p);
g.draw(line);
e.setFrame(p.getX() - z, p.getY() - z, 2 * z, 2 * z);
if (selection.getShapeIndex() == shapeIndex
&& selection.getNodeIndex() == nodeIndex
&& Handle.NEXT_CONTROL.equals(selection.getHandle())) {
g.setColor(Color.black);
} else if (indication.getShapeIndex() == shapeIndex
&& indication.getNodeIndex() == nodeIndex
&& Handle.NEXT_CONTROL.equals(indication.getHandle())) {
} else {
g.setColor(Color.white);
}
g.fill(e);
g.setColor(Color.black);
g.draw(e);
}
r.setFrame(nodePoint.getX() - z, nodePoint.getY() - z, 2 * z, 2 * z);
if (selection.getShapeIndex() == shapeIndex
&& selection.getNodeIndex() == nodeIndex
&& Handle.PRIMARY.equals(selection.getHandle())) {
g.setColor(Color.black);
} else if (indication.getShapeIndex() == shapeIndex
&& indication.getNodeIndex() == nodeIndex
&& Handle.PRIMARY.equals(indication.getHandle())) {
g.setColor(Color.gray);
} else {
g.setColor(Color.white);
}
g.fill(r);
g.setColor(Color.black);
g.draw(r);
}
}
}
}
} finally {
g.dispose();
}
}
protected void refreshScaleFactor(ShapeCreationPanel scp) {
CubicPath[] paths = getCubicPaths(scp);
for (CubicPath path : paths) {
path.setScaleFactor(getScaleFactor(scp));
}
}
@Override
public void mouseDragged(MouseEvent e) {
try {
if (e.getClickCount() > 1) return;
ShapeCreationPanel scp = (ShapeCreationPanel) e.getComponent();
boolean isCreating = ShapeCreationPanel.MODE_CREATE.equals(scp.getMode());
CubicPath[] paths = getCubicPaths(scp);
int i = scp.getSelectionModel().getSelection().getShapeIndex();
CubicPath path = i == -1 ? null : paths[i];
Point2D p = new Point2D.Double(e.getX(), e.getY());
try {
scp.getTransform().createInverse().transform(p, p);
} catch (NoninvertibleTransformException e2) {
throw new RuntimeException(e2);
}
float x = (float) p.getX();
float y = (float) p.getY();
boolean replacePath = true;
if (isCreating) {
int nodeIndex = path.getNodeCount() - 1;
float dx = x - clickX;
float dy = y - clickY;
path.setPrevControlForNode(nodeIndex, clickX - dx, clickY - dy);
} else {
Selection s = scp.getSelectionModel().getSelection();
int nodeIndex = s.getNodeIndex();
if (nodeIndex != -1) {
if (Handle.PREVIOUS_CONTROL.equals(s.getHandle())) {
path.setPrevControlForNode(nodeIndex, new Point2D.Double(x, y));
if (Constraint.ANGLE_ONLY.equals(getConstraint(scp))) {
path.setNextControlForNodeFromPrev(nodeIndex, false);
} else if (Constraint.ANGLE_AND_DISTANCE.equals(getConstraint(scp))) {
path.setNextControlForNodeFromPrev(nodeIndex, true);
}
} else if (Handle.PRIMARY.equals(s.getHandle())) {
path.setNode(nodeIndex, new Point2D.Double(x, y), true);
} else { // next control:
path.setNextControlForNode(nodeIndex, new Point2D.Double(x, y));
if (Constraint.ANGLE_ONLY.equals(getConstraint(scp))) {
path.setPrevControlForNodeFromNext(nodeIndex, false);
} else if (Constraint.ANGLE_AND_DISTANCE.equals(getConstraint(scp))) {
path.setPrevControlForNodeFromNext(nodeIndex, true);
}
}
} else {
float dx = e.getX() - lastUntransformedX;
float dy = e.getY() - lastUntransformedY;
nudge(scp, dx, dy);
replacePath = false;
}
}
if (i >= 0 && replacePath) {
changingDataModel.add(Thread.currentThread());
try {
scp.getDataModel().setShape(i, path);
} finally {
changingDataModel.remove(Thread.currentThread());
}
}
} finally {
lastUntransformedX = e.getX();
lastUntransformedY = e.getY();
}
}