// ************ modification ************
internal override void startModify(PointF org, int handle, InteractionState ist)
{
base.startModify(org, handle, ist);
relatedInteraction = ist;
ptLastTopLeft.X = rect.Left;
ptLastTopLeft.Y = rect.Top;
ptLastTopLeft = flowChart.AlignPointToGrid(ptLastTopLeft);
if (handle == 8 && selectedItems.Count > 0)
{
foreach (ChartObject obj in selectedItems)
{
if (!obj.getModifying() && obj.canModify(handle))
{
obj.startModify(org, 0, ist);
}
}
}
// find arrows whose both ends are selected
arrowsToMove.Clear();
MethodCallVisitor visitor = new MethodCallVisitor(
new VisitOperation(HV_TranslateArrow));
visitHierarchy(visitor);
}
internal override void completeModify(PointF end, InteractionState ist)
{
base.completeModify(end, ist);
relatedInteraction = null;
RectangleF rcBounding = new RectangleF(0, 0, 0, 0);
if (modifyHandle == 8)
{
MethodCallVisitor visitor = new MethodCallVisitor(
new VisitOperation(updateNSARect));
visitHierarchy(visitor);
foreach (ChartObject obj in selectedItems)
{
RectangleF rcObj = obj.getRotatedBounds();
rcBounding = Utilities.unionNonEmptyRects(rcBounding, rcObj);
}
rect = rcBounding;
// beware of arrow routing; obj.completeModify invokations
// might route many arrows repetitively
flowChart.DontRouteForAwhile = true;
// call EndModify method of all selected objects
foreach (ChartObject obj in selectedItems)
{
if (obj.getModifying() && obj.canModify(modifyHandle))
{
obj.completeModify();
}
}
// now that would route an arrow only once
flowChart.DontRouteForAwhile = false;
flowChart.routeAllArrows(this);
// fire SelectionMoved event, for that was exactly what happened
flowChart.fireSelectionMoved();
}
}
