public void Execute(ICollection <PathPart> pathPartSelection)
{
this.SplitComponentsByFigure(pathPartSelection);
for (int figureIndex = this.pathEditorTarget.PathGeometry.Figures.Count - 1; figureIndex >= 0; --figureIndex)
{
List <int> segmentsByFigure = this.selectedSegments[figureIndex];
List <int> pointsByFigure = this.selectedPoints[figureIndex];
segmentsByFigure.Sort();
segmentsByFigure.Reverse();
pointsByFigure.Sort();
pointsByFigure.Reverse();
if (segmentsByFigure.Count == 0)
{
this.RemovePointsByFigure(figureIndex, pointsByFigure);
}
else
{
if (PathFigureUtilities.IsClosed(this.pathEditorTarget.PathGeometry.Figures[figureIndex]))
{
this.OpenFigureAndShiftIndices(figureIndex, segmentsByFigure, pointsByFigure);
}
this.RemovePointsAndSegmentsFromOpenFigure(figureIndex, segmentsByFigure, pointsByFigure);
}
if (PathFigureUtilities.IsIsolatedPoint(this.pathEditorTarget.PathGeometry.Figures[figureIndex]))
{
this.pathEditorTarget.CreateGeometryEditor().RemoveFigure(figureIndex);
}
}
}
protected override void OnDrag(MouseDevice mouseDevice, double zoom)
{
this.currentTangentPoint = this.GetPointInViewRootCoordinates(mouseDevice, true);
Vector correspondingVector = ElementUtilities.GetCorrespondingVector(this.currentTangentPoint - this.currentNodePoint, this.geometryToDocument, this.IsShiftDown ? this.AxisConstraint : (AxisConstraint)null);
Vector lastTangent = this.LastTangent;
this.LastTangent = correspondingVector;
PathFigure pathFigure = this.PathEditContext.GetPathFigure(this.Path);
PathFigureEditor pathFigureEditor = pathFigure == null ? (PathFigureEditor)null : new PathFigureEditor(pathFigure);
if (pathFigureEditor != null && !PathFigureUtilities.IsIsolatedPoint(pathFigureEditor.PathFigure))
{
PathGeometryEditor pathGeometryEditor = this.BeginEditing();
bool flag = PathFigureUtilities.IsClosed(pathFigureEditor.PathFigure);
int index = PathFigureUtilities.PointCount(pathFigureEditor.PathFigure) - (flag ? 0 : 1);
Point point1 = pathFigureEditor.GetPoint(index - 1);
Point point2 = pathFigureEditor.GetPoint(index);
if (pathFigureEditor.GetPointKind(index) == PathPointKind.Line)
{
pathGeometryEditor.RemoveLastSegmentOfFigure(this.PathEditContext.FigureIndex);
if (flag)
{
pathGeometryEditor.CloseFigureWithCubicBezier(point1, point2, this.PathEditContext.FigureIndex);
}
else
{
pathGeometryEditor.AppendCubicBezier(point1, point2, point2, this.PathEditContext.FigureIndex);
}
pathFigureEditor = new PathFigureEditor(this.PathEditContext.GetPathFigure(this.Path));
}
if (!this.IsAltDown)
{
if (!this.areTangentsSymmetric)
{
double length = this.LastTangent.Length;
if (length > 0.0)
{
int num1 = PathFigureUtilities.PointCount(pathFigureEditor.PathFigure);
double num2 = (pathFigureEditor.GetPoint(num1 - 1) - pathFigureEditor.GetPoint(num1 - 2)).Length / length;
pathGeometryEditor.SetPoint(this.PathEditContext.FigureIndex, num1 - 2, point2 - num2 * this.LastTangent);
}
}
else
{
int pointIndex = PathFigureUtilities.PointCount(pathFigureEditor.PathFigure) - (PathFigureUtilities.IsClosed(pathFigureEditor.PathFigure) ? 1 : 2);
pathGeometryEditor.SetPoint(this.PathEditContext.FigureIndex, pointIndex, point2 - this.LastTangent);
}
}
if (PathFigureUtilities.IsClosed(pathFigureEditor.PathFigure) && pathFigureEditor.GetPointKind(3) == PathPointKind.Cubic && this.areTangentsSymmetric)
{
pathGeometryEditor.SetPoint(this.PathEditContext.FigureIndex, 1, point2 + this.LastTangent);
}
this.PathEditorTarget.AddCriticalEdit();
}
base.OnDrag(mouseDevice, zoom);
}
private PenAction GetAction(PathPartAdorner adorner)
{
PenAction penAction = (PenAction)null;
PathSegmentAdorner pathSegmentAdorner = adorner as PathSegmentAdorner;
PathEditorTarget pathEditorTarget = (PathEditorTarget)null;
if (adorner != null)
{
pathEditorTarget = adorner.PathAdornerSet.PathEditorTarget;
}
if (pathSegmentAdorner != null)
{
penAction = (PenAction) new InsertAction(pathEditorTarget, this.ActiveSceneViewModel);
}
else
{
PathPointAdorner pathPointAdorner = adorner as PathPointAdorner;
if (pathPointAdorner != null)
{
penAction = (PenAction) new DeletePointAction(pathEditorTarget, this.ActiveSceneViewModel);
PathFigure figure1 = pathEditorTarget.PathGeometry.Figures[pathPointAdorner.FigureIndex];
if (PathFigureUtilities.IsOpen(figure1) && !PathFigureUtilities.IsIsolatedPoint(figure1))
{
bool flag1 = pathPointAdorner.PointIndex == 0;
bool flag2 = pathPointAdorner.PointIndex == PathFigureUtilities.PointCount(figure1) - 1;
bool flag3 = pathPointAdorner.PathAdornerSet.PathEditorTarget == this.pathEditorTarget;
bool flag4 = this.pathEditContext != null && pathPointAdorner.FigureIndex == this.pathEditContext.FigureIndex;
bool flag5 = this.pathEditorTarget != null && pathPointAdorner.PathAdornerSet.PathEditorTarget.PathEditMode == this.pathEditorTarget.PathEditMode;
bool flag6 = pathPointAdorner.PathAdornerSet.PathEditorTarget.PathEditMode == PathEditMode.ScenePath;
PathFigure figure2 = this.pathEditContext == null || this.pathEditorTarget == null ? (PathFigure)null : this.pathEditContext.GetPathFigure(this.pathEditorTarget.PathGeometry);
bool flag7 = figure2 != null && PathFigureUtilities.IsOpen(figure2);
bool flag8 = (flag3 && !flag4 || flag5 && flag6) && flag7;
if (flag1)
{
penAction = !flag3 || !flag4 ? (!flag8 ? (PenAction) new ExtendAction(pathEditorTarget, this.ActiveSceneViewModel) : (PenAction) new JoinAction(pathEditorTarget, this.ActiveSceneViewModel, this.pathEditorTarget, this.pathEditContext)) : (PenAction) new CloseAction(pathEditorTarget, this.ActiveSceneViewModel);
}
else if (flag2)
{
penAction = !flag3 || !flag4 ? (!flag8 ? (PenAction) new ExtendAction(pathEditorTarget, this.ActiveSceneViewModel) : (PenAction) new JoinAction(pathEditorTarget, this.ActiveSceneViewModel, this.pathEditorTarget, this.pathEditContext)) : (PenAction) new AdjustAction(pathEditorTarget, this.ActiveSceneViewModel);
}
}
if (PathFigureUtilities.IsIsolatedPoint(figure1) && this.pathEditContext == null)
{
penAction = (PenAction) new ExtendAction(pathEditorTarget, this.ActiveSceneViewModel);
}
}
}
if (penAction == null)
{
penAction = !this.IsActive || this.pathEditorTarget == null || (this.pathEditorTarget.PathGeometry.Figures.Count <= 0 || this.pathEditorTarget.PathGeometry.Figures[this.pathEditorTarget.PathGeometry.Figures.Count - 1].IsClosed) ? (PenAction) new StartAction(this, (PathEditorTarget)null, this.ActiveSceneViewModel) : (PenAction) new AppendAction(this.pathEditorTarget, this.ActiveSceneViewModel);
}
return(penAction);
}
private void DeleteIsolatedPoint(PathEditContext pathEditContext)
{
if (!PathFigureUtilities.IsIsolatedPoint(pathEditContext.GetPathFigure(this.Path)))
{
return;
}
if (this.Path.Figures.Count > 1)
{
this.BeginEditing().RemoveFigure(pathEditContext.FigureIndex);
}
else
{
this.RemovePath();
}
}
protected override void OnBegin(PathEditContext pathEditContext, MouseDevice mouseDevice)
{
this.DoPreDelete();
if (!PathFigureUtilities.IsIsolatedPoint(pathEditContext.GetPathFigure(this.Path)))
{
this.DoDelete(pathEditContext);
if (this.PathEditorTarget.PathEditMode == PathEditMode.MotionPath)
{
this.DeleteIsolatedPoint(pathEditContext);
}
}
else
{
this.DeleteIsolatedPoint(pathEditContext);
}
base.OnBegin(pathEditContext, mouseDevice);
this.End();
}
