@Override
protected boolean handleDragStarted() {
// TODO Auto-generated method stub
boolean b = super.handleDragStarted();
CustomRegionResizableEditPolicy policy =
(CustomRegionResizableEditPolicy) regionEP.getEditPolicy(EditPolicy.PRIMARY_DRAG_ROLE);
regionEP.setSelected(EditPart.SELECTED_NONE);
View regionView = (View) regionEP.getModel();
IAdaptable adaptableForRegion = new SemanticAdapter(null, regionView);
ChangeBoundsRequest internalResizeRequest = new ChangeBoundsRequest();
int regionWidth = Zone.getWidth(regionView);
int regionHeight = Zone.getHeight(regionView);
RegionFigure regionFigure = regionEP.getPrimaryShape();
regionFigureBounds = regionFigure.getBounds().getCopy();
// transform the coordinates to absolute
regionFigure.translateToAbsolute(regionFigureBounds);
String zone = Zone.getZone(regionView);
if (Zone.isRight(zone)) {
internalResizeRequest.setResizeDirection(PositionConstants.WEST);
internalResizeRequest.setSizeDelta(new Dimension(-regionWidth, 0));
} else if (Zone.isLeft(zone)) {
internalResizeRequest.setResizeDirection(PositionConstants.EAST);
internalResizeRequest.setSizeDelta(new Dimension(-regionWidth, 0));
} else if (Zone.isTop(zone)) {
internalResizeRequest.setResizeDirection(PositionConstants.SOUTH);
internalResizeRequest.setSizeDelta(new Dimension(0, -regionHeight));
} else if (Zone.isBottom(zone)) {
internalResizeRequest.setResizeDirection(PositionConstants.NORTH);
internalResizeRequest.setSizeDelta(new Dimension(0, -regionHeight));
}
internalResizeCommand =
new CustomRegionResizeCommand(
adaptableForRegion,
null,
regionEP.getEditingDomain(),
null,
internalResizeRequest,
null);
try {
internalResizeCommand.execute(null, null);
} catch (ExecutionException e) {
}
return b;
}
@Override
protected void refreshVisuals() {
super.refreshVisuals();
View view = (View) getModel();
RegionFigure f = getPrimaryShape();
// check the region zone
String zone = Zone.getZone(view);
if (zone != null) {
// check the neighbours if any and change the corresponding flags in the
// figure
if (Zone.hasRightNeighbours(zone)) f.setDisplayRightBorder(true);
else f.setDisplayRightBorder(false);
if (Zone.hasBottomNeighbours(zone)) f.setDisplayBottomBorder(true);
else f.setDisplayBottomBorder(false);
CustomRegionResizableEditPolicy policy =
(CustomRegionResizableEditPolicy) getEditPolicy(EditPolicy.PRIMARY_DRAG_ROLE);
// test for allowed directions
int dirs = Zone.getAllowedResizeDirections(zone);
// constrain the edit policy with these directions
if (policy != null) policy.setResizeDirections(dirs);
} else {
f.setDisplayBottomBorder(false);
f.setDisplayRightBorder(false);
}
}