Examples with ShapeSetConstraintCommand org.jboss.tools.hibernate.ui.diagram.editors.command.ShapeSetConstraintCommand used on opensource projects

Example 1 with ShapeSetConstraintCommand

use of org.jboss.tools.hibernate.ui.diagram.editors.command.ShapeSetConstraintCommand in project jbosstools-hibernate by jbosstools.

the class ShapesXYLayoutEditPolicy method createChangeConstraintCommand.

/**
 * @see org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy#createChangeConstraintCommand(org.eclipse.gef.EditPart, java.lang.Object)
 */
protected Command createChangeConstraintCommand(ChangeBoundsRequest request, EditPart child, Object constraint) {
    if (!(child instanceof OrmShapeEditPart && constraint instanceof Rectangle)) {
        return super.createChangeConstraintCommand(request, child, constraint);
    }
    OrmShape part = (OrmShape) child.getModel();
    Command result = new ShapeSetConstraintCommand(part, request, ((Rectangle) constraint).getLocation());
    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;
}