// ************ 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 void removeItem(ChartObject item)
{
selection.RemoveObject(item);
if (item == autoHandlesObj) autoHandlesObj = null;
if (item == autoAnchorsObj) autoAnchorsObj = null;
switch (item.getType())
{
case ItemType.Box:
boxes.Remove((Box)item);
break;
case ItemType.ControlHost:
controlHosts.Remove((ControlHost)item);
break;
case ItemType.Table:
tables.Remove((Table)item);
break;
case ItemType.Arrow:
arrows.Remove((Arrow)item);
break;
}
removeFromZOrder(item);
MethodCallVisitor visitor =
new MethodCallVisitor(new VisitOperation(removeFromSelection));
switch (item.getType())
{
case ItemType.ControlHost:
{
ControlHost host = (ControlHost)item;
host.visitArrows(visitor);
host.deleteArrows();
}
break;
case ItemType.Box:
{
Box box = (Box)item;
box.visitArrows(visitor);
box.deleteArrows();
}
break;
case ItemType.Table:
{
Table table = (Table)item;
table.visitArrows(visitor);
table.deleteArrows();
}
break;
case ItemType.Arrow:
{
Arrow arrow = (Arrow)item;
arrow.resetCrossings();
arrow.getDestLink().removeArrowFromObj();
arrow.getOrgnLink().removeArrowFromObj();
}
break;
}
item.onRemove();
// update document size if needed
if (autoSizeDoc != MindFusion.FlowChartX.AutoSize.None)
sizeDocForItems();
}
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();
}
}
private void drawHierarchy(Graphics g, ChartObject obj, bool shadows)
{
if (!sortGroupsByZ)
{
PainterVisitor painter = new PainterVisitor(g, shadows);
obj.visitHierarchy(painter);
}
else
{
MethodCallVisitor visitor =
new MethodCallVisitor(new VisitOperation(addToSortedList));
obj.visitHierarchy(visitor);
foreach (ChartObject item in sortedByZ.Keys)
item.Draw(g, shadows);
sortedByZ.Clear();
}
}
