private void resizeLaneHeight(IResizeShapeContext context) {
ContainerShape participantShape = (ContainerShape) context.getShape();
GraphicsAlgorithm ga = participantShape.getGraphicsAlgorithm();
ContainerShape laneToResize = null;
GraphicsAlgorithm laneToResizeGA = null;
int width = 0;
int height = 0;
int x = 0;
int y = 0;
boolean resizeFirstLane = false;
boolean resize = false;
if (FeatureSupport.isHorizontal(participantShape)) {
int dHeight = context.getHeight() - ga.getHeight();
if (dHeight != 0) {
resize = true;
if (context.getY() != ga.getY()) {
laneToResize = (ContainerShape) FeatureSupport.getFirstLaneInContainer(participantShape);
resizeFirstLane = true;
} else {
laneToResize = (ContainerShape) FeatureSupport.getLastLaneInContainer(participantShape);
}
laneToResizeGA = laneToResize.getGraphicsAlgorithm();
width = laneToResizeGA.getWidth();
height = laneToResizeGA.getHeight() + dHeight;
x = laneToResizeGA.getX();
y = laneToResizeGA.getY();
}
} else {
int dWidth = context.getWidth() - ga.getWidth();
if (dWidth != 0) {
resize = true;
if (context.getX() != ga.getX()) {
laneToResize = (ContainerShape) FeatureSupport.getFirstLaneInContainer(participantShape);
resizeFirstLane = true;
} else {
laneToResize = (ContainerShape) FeatureSupport.getLastLaneInContainer(participantShape);
}
laneToResizeGA = laneToResize.getGraphicsAlgorithm();
width = laneToResizeGA.getWidth() + dWidth;
height = laneToResizeGA.getHeight();
x = laneToResizeGA.getX();
y = laneToResizeGA.getY();
}
}
if (resize) {
ResizeShapeContext newContext = new ResizeShapeContext(laneToResize);
newContext.setLocation(x, y);
newContext.setHeight(height);
newContext.setWidth(width);
newContext.putProperty(POOL_RESIZE_PROPERTY, true);
newContext.putProperty(RESIZE_FIRST_LANE, resizeFirstLane);
IResizeShapeFeature resizeFeature = getFeatureProvider().getResizeShapeFeature(newContext);
if (resizeFeature.canResizeShape(newContext)) {
resizeFeature.resizeShape(newContext);
}
if (FeatureSupport.isHorizontal(participantShape)) {
((ResizeShapeContext) context).setHeight(ga.getHeight());
} else {
((ResizeShapeContext) context).setWidth(ga.getWidth());
}
}
}
