/**
* Returns a {@link Rectangle} representing the visual bounds of the given {@link IContentPart}
* within the coordinate system of the {@link Scene}.
*
* @param contentPart The {@link IContentPart} of which the visual bounds are computed.
* @return A {@link Rectangle} representing the visual bounds of the given {@link IContentPart}
* within the coordinate system of the {@link Scene}.
*/
protected Rectangle getVisualBounds(IContentPart<Node, ? extends Node> contentPart) {
if (contentPart == null) {
throw new IllegalArgumentException("contentPart may not be null!");
}
return FX2Geometry.toRectangle(
contentPart.getVisual().localToScene(contentPart.getVisual().getLayoutBounds()));
}
@Override
public void press(MouseEvent e) {
targetParts = getTargetParts();
if (targetParts.size() < 2 || e.isControlDown()) {
invalidGesture = true;
return;
}
// init resize context vars
initialMouseLocation = new Point(e.getSceneX(), e.getSceneY());
selectionBounds = getSelectionBounds(targetParts);
relX1 = new HashMap<>();
relY1 = new HashMap<>();
relX2 = new HashMap<>();
relY2 = new HashMap<>();
// init scale relocate policies
for (IContentPart<Node, ? extends Node> targetPart : targetParts) {
FXTransformPolicy transformPolicy = getTransformPolicy(targetPart);
if (transformPolicy != null) {
storeAndDisableRefreshVisuals(targetPart);
computeRelatives(targetPart);
init(transformPolicy);
// transform scale pivot to parent coordinates
Point pivotInScene = getVisualBounds(targetPart).getTopLeft();
Point pivotInParent =
FX2Geometry.toPoint(
getHost().getVisual().getParent().sceneToLocal(pivotInScene.x, pivotInScene.y));
// create transformations for scaling around pivot
int translateToOriginIndex = transformPolicy.createPostTransform();
int scaleIndex = transformPolicy.createPostTransform();
int translateBackIndex = transformPolicy.createPostTransform();
// set translation transforms for scaling
transformPolicy.setPostTranslate(
translateToOriginIndex, -pivotInParent.x, -pivotInParent.y);
transformPolicy.setPostTranslate(translateBackIndex, pivotInParent.x, pivotInParent.y);
// save rotation index for later adjustments
scaleIndices.put(targetPart, scaleIndex);
// create transform for translation of the target part
translateIndices.put(targetPart, transformPolicy.createPostTransform());
// initialize resize policy if available
FXResizePolicy resizePolicy = getResizePolicy(targetPart);
if (resizePolicy != null) {
init(resizePolicy);
}
}
}
}