/** Handle resize InteractionOperand {@inheritDoc} */
@Override
protected Command getResizeCommand(ChangeBoundsRequest request) {
if ((request.getResizeDirection() & PositionConstants.EAST_WEST) != 0) {
EditPart parent = getHost().getParent().getParent();
return parent.getCommand(request);
} else {
if (this.getHost() instanceof InteractionOperandEditPart
&& this.getHost().getParent()
instanceof CombinedFragmentCombinedFragmentCompartmentEditPart) {
InteractionOperandEditPart currentIOEP = (InteractionOperandEditPart) this.getHost();
CombinedFragmentCombinedFragmentCompartmentEditPart compartEP =
(CombinedFragmentCombinedFragmentCompartmentEditPart) this.getHost().getParent();
// if first interaction operand and resize direction is NORTH
if (this.getHost() == OperandBoundsComputeHelper.findFirstIOEP(compartEP)
&& (request.getResizeDirection() & PositionConstants.NORTH) != 0) {
return getHost().getParent().getParent().getCommand(request);
} else {
int heightDelta = request.getSizeDelta().height();
if ((request.getResizeDirection() & PositionConstants.NORTH) != 0) {
return OperandBoundsComputeHelper.createIOEPResizeCommand(
currentIOEP, heightDelta, compartEP, PositionConstants.NORTH);
} else if ((request.getResizeDirection() & PositionConstants.SOUTH) != 0) {
return OperandBoundsComputeHelper.createIOEPResizeCommand(
currentIOEP, heightDelta, compartEP, PositionConstants.SOUTH);
}
}
}
return null;
}
}
@Override
protected Command createChangeConstraintCommand(
ChangeBoundsRequest request, EditPart child, Object constraint) {
BControlChangeLayoutCommand cmd = new BControlChangeLayoutCommand();
BControl part = (BControl) child.getModel();
cmd.setModel(child.getModel());
cmd.setConstraint((Rectangle) constraint);
Command result = cmd;
if ((request.getResizeDirection() & PositionConstants.NORTH_SOUTH) != 0) {
Integer guidePos = (Integer) request.getExtendedData().get(SnapToGuides.KEY_HORIZONTAL_GUIDE);
if (guidePos != null) {
result = chainGuideAttachmentCommand(request, part, result, true);
} else if (part.getHorizontalGuide() != null) {
// SnapToGuides didn't provide a horizontal guide, but this part
// is attached
// to a horizontal guide. Now we check to see if the part is
// attached to
// the guide along the edge being resized. If that is the case,
// we need to
// detach the part from the guide; otherwise, we leave it alone.
int alignment = part.getHorizontalGuide().getAlignment(part);
int edgeBeingResized = 0;
if ((request.getResizeDirection() & PositionConstants.NORTH) != 0) edgeBeingResized = -1;
else edgeBeingResized = 1;
if (alignment == edgeBeingResized)
result = result.chain(new ChangeGuideCommand(part, true));
}
}
if ((request.getResizeDirection() & PositionConstants.EAST_WEST) != 0) {
Integer guidePos = (Integer) request.getExtendedData().get(SnapToGuides.KEY_VERTICAL_GUIDE);
if (guidePos != null) {
result = chainGuideAttachmentCommand(request, part, result, false);
} else if (part.getVerticalGuide() != null) {
int alignment = part.getVerticalGuide().getAlignment(part);
int edgeBeingResized = 0;
if ((request.getResizeDirection() & PositionConstants.WEST) != 0) edgeBeingResized = -1;
else edgeBeingResized = 1;
if (alignment == edgeBeingResized)
result = result.chain(new ChangeGuideCommand(part, false));
}
}
if (request.getType().equals(REQ_MOVE_CHILDREN)
|| request.getType().equals(REQ_ALIGN_CHILDREN)) {
result = chainGuideAttachmentCommand(request, part, result, true);
result = chainGuideAttachmentCommand(request, part, result, false);
result = chainGuideDetachmentCommand(request, part, result, true);
result = chainGuideDetachmentCommand(request, part, result, false);
}
return result;
}
private ChangeBoundsRequest initConstrainedRequest(ChangeBoundsRequest request) {
ChangeBoundsRequest req = new ChangeBoundsRequest();
req.setConstrainedResize(true);
req.setConstrainedMove(true);
req.setType(request.getType());
req.setResizeDirection(request.getResizeDirection());
req.getExtendedData().put(REGION_RESIZE_PROPAGATOR, getHost());
req.getExtendedData()
.put(
SiriusResizeTracker.CHILDREN_MOVE_MODE_KEY,
request.getExtendedData().get(SiriusResizeTracker.CHILDREN_MOVE_MODE_KEY));
req.getExtendedData().put(REGION_RESIZE_INITIAL_REQUEST, request);
return req;
}
// @unused
public static Request getNewSourceFeedbackRequest(Request request, ShapeNodeEditPart editPart) {
if (request instanceof ChangeBoundsRequest) {
ChangeBoundsRequest currRequest = (ChangeBoundsRequest) request;
Dimension oldDelta = currRequest.getSizeDelta();
Dimension newDelta =
getSizeDeltaToFitAnchors(editPart, oldDelta, PreserveAnchorsPositionCommand.PRESERVE_Y);
// Information for creating a new ChangeBoundsRequest has been taken
// from org.eclipse.gef.editpolicies.ResizableEditPolicy
ChangeBoundsRequest newRequest = new ChangeBoundsRequest();
newRequest.setMoveDelta(currRequest.getMoveDelta());
newRequest.setSizeDelta(newDelta);
newRequest.setLocation(currRequest.getLocation());
newRequest.setExtendedData(currRequest.getExtendedData());
newRequest.setResizeDirection(currRequest.getResizeDirection());
newRequest.setType(currRequest.getType());
return newRequest;
} else {
return request;
}
}
/**
* Shows or updates feedback for a change bounds request. The request is updated by the way so
* that the shape stays a square.
*
* @param request the request
*/
@Override
protected void showChangeBoundsFeedback(ChangeBoundsRequest request) {
// adapt the request for a square resize
Point move = request.getMoveDelta();
Dimension delta = request.getSizeDelta();
int dH = delta.height;
int dW = delta.width;
int signum = 0;
if (dH <= 0 && dW <= 0) {
signum = -1;
} else {
signum = 1;
}
int positiveResize = Math.max(dH, dW);
if (positiveResize <= 0) {
if (dH == 0) {
positiveResize = -dW;
} else if (dW == 0) {
positiveResize = -dH;
} else {
positiveResize = Math.min(-dH, -dW);
}
}
int newDH = signum * positiveResize;
int newDW = newDH;
int dir = request.getResizeDirection();
// adjust new position if impacted by resizing
if ((dir & PositionConstants.NORTH) > 0) {
move.y += dH - newDH;
}
if ((dir & PositionConstants.WEST) > 0) {
move.x += dW - newDW;
}
request.setMoveDelta(move);
delta.height = newDH;
delta.width = newDW;
super.showChangeBoundsFeedback(request);
}
