@Override
public void drag(MouseEvent e, Dimension delta) {
if (invalidGesture) {
return;
}
if (selectionBounds == null) {
return;
}
Rectangle sel = updateSelectionBounds(e);
for (IContentPart<Node, ? extends Node> targetPart : targetParts) {
// compute initial and new bounds for this target
Bounds initialBounds = getBounds(selectionBounds, targetPart);
Bounds newBounds = getBounds(sel, targetPart);
// compute translation in scene coordinates
double dx = newBounds.getMinX() - initialBounds.getMinX();
double dy = newBounds.getMinY() - initialBounds.getMinY();
// transform translation to parent coordinates
Node visual = targetPart.getVisual();
Point2D originInParent = visual.getParent().sceneToLocal(0, 0);
Point2D deltaInParent = visual.getParent().sceneToLocal(dx, dy);
dx = deltaInParent.getX() - originInParent.getX();
dy = deltaInParent.getY() - originInParent.getY();
// apply translation
getTransformPolicy(targetPart).setPostTranslate(translateIndices.get(targetPart), dx, dy);
// check if we can resize the part
AffineTransform affineTransform = getTransformPolicy(targetPart).getCurrentNodeTransform();
if (affineTransform.getRotation().equals(Angle.fromDeg(0))) {
// no rotation => resize possible
// TODO: special case 90 degree rotations
double dw = newBounds.getWidth() - initialBounds.getWidth();
double dh = newBounds.getHeight() - initialBounds.getHeight();
Point2D originInLocal = visual.sceneToLocal(newBounds.getMinX(), newBounds.getMinY());
Point2D dstInLocal =
visual.sceneToLocal(newBounds.getMinX() + dw, newBounds.getMinY() + dh);
dw = dstInLocal.getX() - originInLocal.getX();
dh = dstInLocal.getY() - originInLocal.getY();
getResizePolicy(targetPart).resize(dw, dh);
} else {
// compute scaling based on bounds change
double sx = newBounds.getWidth() / initialBounds.getWidth();
double sy = newBounds.getHeight() / initialBounds.getHeight();
// apply scaling
getTransformPolicy(targetPart).setPostScale(scaleIndices.get(targetPart), sx, sy);
}
}
}
@Override
public IUndoableOperation commit() {
final IUndoableOperation updateVisualOperation = super.commit();
if (updateVisualOperation == null) {
return null;
}
// commit changes to model
final FXGeometricShapePart host = getHost();
final FXGeometricShape hostContent = host.getContent();
// determine transformation
@SuppressWarnings("serial")
Provider<Affine> affineProvider =
host.getAdapter(
AdapterKey.<Provider<? extends Affine>>get(
new TypeToken<Provider<? extends Affine>>() {},
FXTransformPolicy.TRANSFORMATION_PROVIDER_ROLE));
AffineTransform tx = JavaFX2Geometry.toAffineTransform(affineProvider.get());
final AffineTransform oldTransform = hostContent.getTransform();
final AffineTransform newTransform =
new AffineTransform(
tx.getM00(),
tx.getM10(),
tx.getM01(),
tx.getM11(),
tx.getTranslateX(),
tx.getTranslateY());
// create operation to write the changes to the model
final IUndoableOperation updateModelOperation =
new AbstractOperation("Update Model") {
@Override
public IStatus execute(IProgressMonitor monitor, IAdaptable info)
throws ExecutionException {
hostContent.setTransform(newTransform);
return Status.OK_STATUS;
}
@Override
public IStatus redo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
return execute(monitor, info);
}
@Override
public IStatus undo(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
hostContent.setTransform(oldTransform);
return Status.OK_STATUS;
}
};
// compose operations
IUndoableOperation compositeOperation =
new ForwardUndoCompositeOperation(updateVisualOperation.getLabel()) {
{
add(updateVisualOperation);
add(updateModelOperation);
}
};
return compositeOperation;
}