public static GeometryCombineMode ToGeometryCombineMode(this SelectionCombineMode mode)
{
switch (mode)
{
case SelectionCombineMode.Union:
return(GeometryCombineMode.Union);
case SelectionCombineMode.Exclude:
return(GeometryCombineMode.Exclude);
case SelectionCombineMode.Intersect:
return(GeometryCombineMode.Intersect);
case SelectionCombineMode.Xor:
return(GeometryCombineMode.Xor);
}
throw ExceptionUtil.InvalidEnumArgumentException <SelectionCombineMode>(mode, "mode");
}
protected override void OnMouseDown(MouseEventArgsF e)
{
base.OnMouseDown(e);
base.Cursor = this.GetCursor();
PointDouble point = e.Point;
PointDouble item = this.RoundMouseCanvasPoint(point);
if (this.tracking)
{
this.moveOriginMode = true;
this.lastXY = item;
this.OnMouseMove(e);
}
else if (((e.Button & MouseButtons.Left) == MouseButtons.Left) || ((e.Button & MouseButtons.Right) == MouseButtons.Right))
{
this.tracking = true;
this.hasMoved = false;
this.startTime = DateTime.Now;
this.tracePoints = new SegmentedList <PointDouble>();
this.tracePoints.Add(item);
this.undoAction = new SelectionHistoryMemento("sentinel", base.Image, base.DocumentWorkspace);
this.wasNotEmpty = !base.Selection.IsEmpty;
if (((base.ModifierKeys & Keys.Control) != Keys.None) && (e.Button == MouseButtons.Left))
{
this.combineMode = SelectionCombineMode.Union;
}
else if (((base.ModifierKeys & Keys.Alt) != Keys.None) && (e.Button == MouseButtons.Left))
{
this.combineMode = SelectionCombineMode.Exclude;
}
else if (((base.ModifierKeys & Keys.Control) != Keys.None) && (e.Button == MouseButtons.Right))
{
this.combineMode = SelectionCombineMode.Xor;
}
else if (((base.ModifierKeys & Keys.Alt) != Keys.None) && (e.Button == MouseButtons.Right))
{
this.combineMode = SelectionCombineMode.Intersect;
}
else
{
this.combineMode = base.ToolSettings.Selection.CombineMode.Value;
}
base.DocumentWorkspace.EnableSelectionOutline = false;
Result <GeometryList> oldSelectionGeometryLazy0 = base.Selection.GetCachedLazyGeometryList();
this.oldSelectionGeometryLazy = oldSelectionGeometryLazy0;
Work.QueueWorkItem(delegate {
Result <GeometryList> oldSelectionGeometryLazy = this.oldSelectionGeometryLazy;
if (oldSelectionGeometryLazy0 == oldSelectionGeometryLazy)
{
oldSelectionGeometryLazy.EnsureEvaluated();
}
});
this.newSelection.Restore(base.Selection.Save());
switch (this.combineMode)
{
case SelectionCombineMode.Replace:
this.append = false;
base.Selection.Reset();
break;
case SelectionCombineMode.Union:
case SelectionCombineMode.Exclude:
case SelectionCombineMode.Intersect:
case SelectionCombineMode.Xor:
this.append = true;
base.Selection.ResetContinuation();
break;
default:
throw ExceptionUtil.InvalidEnumArgumentException <SelectionCombineMode>(this.combineMode, "this.combineMode");
}
this.newSelectionRenderer.IsVisible = true;
if (this.tracePoints.Count >= this.MinPointsForRender)
{
this.Render();
}
}
}
