public void DeleteLastSegment(SMPathOut firstSeg)
{
// Never delete the first one.
SMPathSegment thisPathSeg = firstSeg.Next;
int nSeg = 1;
while (thisPathSeg != null)
{
if (thisPathSeg.Next == null)
{
// Delete this one
SegmentCtl segCtl = GetSegmentCtl(thisPathSeg);
if (segCtl != null)
{
_containerPanel.Controls.Remove(segCtl);
segCtl.Dispose();
}
thisPathSeg.Delete();
PreMoveIt(firstSeg);
return;
}
thisPathSeg = thisPathSeg.Next;
nSeg++;
}
}
private SegmentCtl CreateSegmentCtl(SMPathSegment pathSeg)
{
SegmentCtl segCtl = new SegmentCtl(_containerPanel, _flowItem, this, pathSeg);
segCtl.Name = BuildSegName(pathSeg);
_containerPanel.Controls.Add(segCtl);
return(segCtl);
}
/// <summary>
/// Returns true if this segment path is selected
/// </summary>
/// <param name="pathOut"></param>
/// <returns></returns>
public bool IsSelected(SMPathOut pathOut)
{
SegmentCtl segCtl = GetSegmentCtl(pathOut);
if (segCtl != null)
{
return((segCtl as ISelectable).SMSelected);
}
return(false);
}
private void CreateNewSegment(eDrag dragMode, int pixDeltaX, int pixDeltaY)
{
SMPathSegment newPathSeg = _pathSeg.Append();
SetSegGridLoc(newPathSeg, pixDeltaX, pixDeltaY);
// Create the control
_newSegCtl = _ctlBase.AppendSegmentCtl(newPathSeg);
_ctlBase.MoveItem();
_newSegCtl.Handoff(_lastMousePosition, dragMode, new SMPathSegment[] { newPathSeg });
}
private void OnMouseUp(object sender, MouseEventArgs e)
{
if (_newSegCtl != null)
{
_newSegCtl.OnMouseUp(sender, e);
_newSegCtl = null;
}
else
{
DragMode = eDrag.None;
}
}
private void DisposeSegment(SMPathSegment pathSeg)
{
if (pathSeg != null)
{
string segName = BuildSegName(pathSeg);
if (_containerPanel.Controls.ContainsKey(segName))
{
SegmentCtl segCtl = _containerPanel.Controls[segName] as SegmentCtl;
_containerPanel.Controls.Remove(segCtl);
segCtl.Dispose();
DisposeSegment(pathSeg.Next);
}
}
}
private PointF MoveSegment(SMPathSegment pathSeg, PointF startGridPt)
{
if (pathSeg != null)
{
string segName = BuildSegName(pathSeg);
if (_containerPanel.Controls.ContainsKey(segName))
{
SegmentCtl segCtl = _containerPanel.Controls[segName] as SegmentCtl;
PointF endGridPt = segCtl.MoveIt(startGridPt);
return(MoveSegment(pathSeg.Next, endGridPt));
}
}
return(startGridPt);
}
/// <summary>
/// Set this path to be selected
/// </summary>
/// <param name="pathOut"></param>
public void SetSelected(SMPathOut pathOut)
{
SegmentCtl segCtl = GetSegmentCtl(pathOut);
_containerPanel.CurrentSel = segCtl as ISelectable;
}
