public IReason updateNeeded(IUpdateContext context) {
// retrieve name from pictogram model
String pictogramName = null;
PictogramElement pictogramElement = context.getPictogramElement();
if (pictogramElement instanceof ContainerShape) {
ContainerShape cs = (ContainerShape) pictogramElement;
for (Shape shape : cs.getChildren()) {
if (shape.getGraphicsAlgorithm() instanceof Text) {
Text text = (Text) shape.getGraphicsAlgorithm();
pictogramName = text.getValue();
}
}
}
// retrieve name from business model
String businessName = null;
Object bo = getBusinessObjectForPictogramElement(pictogramElement);
if (bo instanceof EClass) {
EClass eClass = (EClass) bo;
businessName = eClass.getName();
}
// update needed, if names are different
boolean updateNameNeeded =
((pictogramName == null && businessName != null)
|| (pictogramName != null && !pictogramName.equals(businessName)));
if (updateNameNeeded) {
return Reason.createTrueReason("Name is out of date");
} else {
return Reason.createFalseReason();
}
}
protected void internalResize(IResizeShapeContext context) {
Shape shape = context.getShape();
int x = context.getX();
int y = context.getY();
int width = context.getWidth();
int height = context.getHeight();
if (shape.getGraphicsAlgorithm() != null) {
Graphiti.getGaService().setLocationAndSize(shape.getGraphicsAlgorithm(), x, y, width, height);
}
}
private void performMove(Shape labelShape, Point position) {
// always move within the original container
GraphicsAlgorithm labelGraphicsAlgorithm = labelShape.getGraphicsAlgorithm();
if (labelGraphicsAlgorithm != null) {
Graphiti.getGaService()
.setLocation(
labelGraphicsAlgorithm,
position.getX() - labelGraphicsAlgorithm.getWidth() / 2,
position.getY(),
true);
}
}
@Override
public void resizeShape(IResizeShapeContext context) {
Shape shape = context.getShape();
int x = context.getX();
int y = context.getY();
// Application Component Width cannot be changed
int width = StyleUtil.APP_COMPONENT_WIDTH;
int height = context.getHeight();
if (shape.getGraphicsAlgorithm() != null) {
Graphiti.getGaService().setLocationAndSize(shape.getGraphicsAlgorithm(), x, y, width, height);
}
layoutPictogramElement(shape);
TNodeTemplateExtension applicationComponent =
(TNodeTemplateExtension) getBusinessObjectForPictogramElement(shape);
applicationComponent.setX(x);
applicationComponent.setY(y);
applicationComponent.setWidth(width);
applicationComponent.setHeight(height);
}
public boolean update(IUpdateContext context) {
// retrieve name from business model
String businessName = null;
PictogramElement pictogramElement = context.getPictogramElement();
Object bo = getBusinessObjectForPictogramElement(pictogramElement);
if (bo instanceof EClass) {
EClass eClass = (EClass) bo;
businessName = eClass.getName();
}
// Set name in pictogram model
if (pictogramElement instanceof ContainerShape) {
ContainerShape cs = (ContainerShape) pictogramElement;
for (Shape shape : cs.getChildren()) {
if (shape.getGraphicsAlgorithm() instanceof Text) {
Text text = (Text) shape.getGraphicsAlgorithm();
text.setValue(businessName);
return true;
}
}
}
return false;
}
public boolean layout(ILayoutContext context) {
boolean anythingChanged = false;
ContainerShape containerShape = (ContainerShape) context.getPictogramElement();
GraphicsAlgorithm containerGa = containerShape.getGraphicsAlgorithm();
// the containerGa is the invisible rectangle
// containing the visible rectangle as its (first and only) child
GraphicsAlgorithm rectangle = containerGa.getGraphicsAlgorithmChildren().get(0);
// height of invisible rectangle
if (containerGa.getHeight() < MIN_HEIGHT) {
containerGa.setHeight(MIN_HEIGHT);
anythingChanged = true;
}
// height of visible rectangle (same as invisible rectangle)
if (rectangle.getHeight() != containerGa.getHeight()) {
rectangle.setHeight(containerGa.getHeight());
anythingChanged = true;
}
// width of invisible rectangle
if (containerGa.getWidth() < MIN_WIDTH) {
containerGa.setWidth(MIN_WIDTH);
anythingChanged = true;
}
// width of visible rectangle (smaller than invisible rectangle)
int rectangleWidth = containerGa.getWidth() - AddNodeFeature.INVISIBLE_RIGHT_SPACE;
if (rectangle.getWidth() != rectangleWidth) {
rectangle.setWidth(rectangleWidth);
anythingChanged = true;
}
// width of text and line (same as visible rectangle)
for (Shape shape : containerShape.getChildren()) {
GraphicsAlgorithm graphicsAlgorithm = shape.getGraphicsAlgorithm();
IGaService gaService = Graphiti.getGaService();
IDimension size = gaService.calculateSize(graphicsAlgorithm);
if (rectangleWidth != size.getWidth()) {
gaService.setWidth(graphicsAlgorithm, rectangleWidth);
anythingChanged = true;
}
}
return anythingChanged;
}
protected void moveClassShape(
IFeatureProvider fp, Diagram diagram, int x, int y, String className) {
Shape shape = findShapeForEClass(diagram, className);
MoveShapeContext moveShapeContext = new MoveShapeContext(shape);
moveShapeContext.setSourceContainer(shape.getContainer());
moveShapeContext.setTargetContainer(shape.getContainer());
moveShapeContext.setLocation(x, y);
moveShapeContext.setDeltaX(x - shape.getGraphicsAlgorithm().getX());
moveShapeContext.setDeltaY(y - shape.getGraphicsAlgorithm().getY());
IMoveShapeFeature moveShapeFeature = fp.getMoveShapeFeature(moveShapeContext);
assertNotNull("move shape feature not available", moveShapeFeature);
if (moveShapeFeature.canMoveShape(moveShapeContext)) {
moveShapeFeature.execute(moveShapeContext);
}
}
public boolean layout(ILayoutContext context) {
boolean anythingChanged = false;
ContainerShape containerShape = (ContainerShape) context.getPictogramElement();
GraphicsAlgorithm containerGa = containerShape.getGraphicsAlgorithm();
// height
if (containerGa.getHeight() < MIN_HEIGHT) {
containerGa.setHeight(MIN_HEIGHT);
anythingChanged = true;
}
// width
if (containerGa.getWidth() < MIN_WIDTH) {
containerGa.setWidth(MIN_WIDTH);
anythingChanged = true;
}
int containerWidth = containerGa.getWidth();
for (Shape shape : containerShape.getChildren()) {
GraphicsAlgorithm graphicsAlgorithm = shape.getGraphicsAlgorithm();
IGaService gaService = Graphiti.getGaService();
IDimension size = gaService.calculateSize(graphicsAlgorithm);
if (containerWidth != size.getWidth()) {
if (graphicsAlgorithm instanceof Polyline) {
Polyline polyline = (Polyline) graphicsAlgorithm;
Point secondPoint = polyline.getPoints().get(1);
Point newSecondPoint = gaService.createPoint(containerWidth, secondPoint.getY());
polyline.getPoints().set(1, newSecondPoint);
anythingChanged = true;
} else {
gaService.setWidth(graphicsAlgorithm, containerWidth);
anythingChanged = true;
}
}
}
return anythingChanged;
}