//=============================================================================
private void ClearGrips()
{
foreach (cadGrip g in m_grips)
{
RemoveVisualChild(g);
RemoveLogicalChild(g);
}
m_grips.Clear();
m_gripToMove = null;
}
//=============================================================================
protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e)
{
base.OnMouseLeftButtonDown(e);
if (!this.IsEnabled)
{
return;
}
Point globalPnt = _GetGlobalPoint(e);
if (m_NewGeometry != null)
{
m_NewGeometry.OnMouseLeftButtonClick(globalPnt);
this.cadToolTip = m_NewGeometry.Tooltip;
if (m_NewGeometry.IsPlaced)
{
m_NewGeometry.Draw(this, null);
m_NewGeometry = null;
_OnInternalCommandEnded();
// start new geom
_CloneGeom();
}
}
else
{
Point localPnt = _GetLocalPoint(e);
HitTestResult res = VisualTreeHelper.HitTest(this, localPnt);
if (m_gripToMove != null)
{
m_gripToMove = null;
//
// End of grip dragging.
// Geometry property was changed.
_OnInternalCommandEnded();
return;
}
// moving grip
cadGrip _grip = res.VisualHit as cadGrip;
if (_grip != null)
{
m_gripToMove = _grip;
return;
}
SelectedGeometry = res.VisualHit as ICadGeometry;
}
}
//=============================================================================
private void _Cancel()
{
this.cadToolTip = null;
//
SelectedGeometry = null;
// delete last not initialized
if (m_NewGeometry != null)
{
DrawingVisual dc = m_NewGeometry.GetGeometryWrapper();
RemoveVisualChild(dc);
RemoveLogicalChild(dc);
m_geometries.Remove(m_NewGeometry);
m_NewGeometry = null;
}
m_gripToMove = null;
ClearGrips();
}
//=============================================================================
public void ResetGrips()
{
ClearGrips();
ICadGeometry selectedGeom = SelectedGeometry;
if (selectedGeom != null)
{
List <Point> pnts = selectedGeom.GetGripPoints();
if (pnts != null)
{
foreach (Point p in pnts)
{
cadGrip newGrip = new cadGrip(this, selectedGeom, pnts.IndexOf(p));
m_grips.Add(newGrip);
AddVisualChild(newGrip);
AddLogicalChild(newGrip);
}
}
}
}