protected override void OnDrag(MouseDevice mouseDevice, double zoom)
{
Point point = PathFigureUtilities.GetPoint(this.PathEditContext.GetPathFigure(this.Path), this.PathEditContext.PartIndex);
Point point1 = this.geometryToDocument.Transform(point);
Point viewRootCoordinates = this.GetPointInViewRootCoordinates(mouseDevice, true);
Vector vector = viewRootCoordinates - point1;
Vector correspondingVector = ElementUtilities.GetCorrespondingVector(vector, this.geometryToDocument, this.IsShiftDown ? this.AxisConstraint : (AxisConstraint)null);
if (this.hasMoved || Tolerances.HaveMoved(point1, viewRootCoordinates, zoom))
{
this.hasMoved = true;
PathGeometry path = this.Path;
int figureIndex = this.PathEditContext.FigureIndex;
int partIndex = this.PathEditContext.PartIndex;
PathGeometryEditor pathGeometryEditor = this.BeginEditing();
PathFigureEditor pathFigureEditor = new PathFigureEditor(path.Figures[figureIndex]);
if (partIndex > 0 || PathFigureUtilities.IsClosed(pathFigureEditor.PathFigure))
{
pathGeometryEditor.SetPoint(figureIndex, partIndex - 1, point - correspondingVector);
}
if (pathFigureEditor.GetLastIndexOfDownstreamSegment(partIndex) != partIndex)
{
pathGeometryEditor.SetPoint(figureIndex, partIndex + 1, point + correspondingVector);
}
if (partIndex == PathFigureUtilities.PointCount(pathFigureEditor.PathFigure) - 1 && PathFigureUtilities.IsOpen(pathFigureEditor.PathFigure))
{
this.LastTangent = vector;
}
this.PathEditorTarget.AddCriticalEdit();
}
base.OnDrag(mouseDevice, zoom);
}
protected override void OnBegin(PathEditContext pathEditContext, MouseDevice mouseDevice)
{
this.ViewModel.PathPartSelectionSet.SetSelection((PathPart) new PathPoint((SceneElement)this.PathEditorTarget.EditingElement, this.PathEditorTarget.PathEditMode, pathEditContext.FigureIndex, pathEditContext.PartIndex));
Point point = PathFigureUtilities.GetPoint(pathEditContext.GetPathFigure(this.Path), pathEditContext.PartIndex);
Matrix elementTransformToRoot = this.EditingElementTransformToRoot;
this.Initialize(elementTransformToRoot.Transform(point), false, elementTransformToRoot);
base.OnBegin(pathEditContext, mouseDevice);
}
protected override void OnBegin(PathEditContext pathEditContext, MouseDevice mouseDevice)
{
this.startRootPoint = PathFigureUtilities.GetPoint(this.PathEditorTarget.PathGeometry.Figures[pathEditContext.FigureIndex], pathEditContext.PartIndex, true);
this.geometryToDocument = this.PathEditorTarget.GetTransformToAncestor((IViewObject)this.View.HitTestRoot);
base.OnBegin(pathEditContext, mouseDevice);
}
protected Point GetLastPoint(int pathFigureIndex)
{
PathFigure pathFigure = this.Path.Figures[pathFigureIndex];
return(PathFigureUtilities.GetPoint(pathFigure, PathFigureUtilities.PointCount(pathFigure) - 1));
}
private void MoveSelection()
{
Matrix matrixToAdornerLayer = this.pathPartAdorner.PathAdornerSet.GetTransformMatrixToAdornerLayer();
Point pointInAdornerLayer = this.GetSnappedPointInAdornerLayer();
PathTangentAdorner pathTangentAdorner = this.pathPartAdorner as PathTangentAdorner;
PathEditContext pathEditContext = new PathEditContext(this.pathPartAdorner.FigureIndex, this.pathPartAdorner.PartIndex);
if (pathTangentAdorner != null)
{
this.EnsureEditTransaction();
this.pathEditorTarget.BeginEditing();
if (!this.HasMouseMovedAfterDown)
{
this.startRootPoint = PathFigureUtilities.GetPoint(this.pathEditorTarget.PathGeometry.Figures[pathEditContext.FigureIndex], pathEditContext.PartIndex, false);
this.correspondingPoint = PathFigureUtilities.GetPoint(this.pathEditorTarget.PathGeometry.Figures[pathEditContext.FigureIndex], pathEditContext.PartIndex, true);
}
Point point = this.IsShiftDown ? this.correspondingPoint : this.startRootPoint;
Vector correspondingVector = ElementUtilities.GetCorrespondingVector(pointInAdornerLayer - point * matrixToAdornerLayer, matrixToAdornerLayer, this.IsShiftDown ? this.axisConstraint : (AxisConstraint)null);
new PathFigureEditor(pathEditContext.GetPathFigure(this.pathEditorTarget.PathGeometry)).MoveTangent(pathEditContext.PartIndex, point + correspondingVector, this.isEnforcingSmoothness);
this.ActiveView.AdornerLayer.InvalidateAdornerVisuals(this.EditingElement);
}
else
{
this.EnsureEditTransaction();
PathPointAdorner pathPointAdorner = this.pathPartAdorner as PathPointAdorner;
PathSegmentAdorner pathSegmentAdorner = this.pathPartAdorner as PathSegmentAdorner;
this.pathPartAdorner.PathAdornerSet.PathEditorTarget.BeginEditing();
if (!this.HasMouseMovedAfterDown)
{
Point point;
if (pathPointAdorner != null)
{
point = PathFigureUtilities.GetPoint(pathEditContext.GetPathFigure(this.pathEditorTarget.PathGeometry), pathEditContext.PartIndex);
}
else
{
PathFigureEditor pathFigureEditor = new PathFigureEditor(pathEditContext.GetPathFigure(this.pathEditorTarget.PathGeometry));
int segmentIndex;
int segmentPointIndex;
PathFigureUtilities.GetSegmentFromPointIndex(pathEditContext.GetPathFigure(this.pathEditorTarget.PathGeometry), pathEditContext.PartIndex, out segmentIndex, out segmentPointIndex);
point = pathFigureEditor.Evaluate(segmentIndex, segmentPointIndex, this.pathSegmentParameter) * pathSegmentAdorner.PathGeometryTransformMatrix;
}
this.startRootPoint = point;
this.previousRootPoint = this.startRootPoint;
}
Vector correspondingVector = ElementUtilities.GetCorrespondingVector(pointInAdornerLayer - this.startRootPoint * matrixToAdornerLayer, matrixToAdornerLayer, this.IsShiftDown ? this.axisConstraint : (AxisConstraint)null);
double zoom = this.ActiveView.Artboard.Zoom;
Vector rootToArtboardScale = this.ActiveView.Artboard.ViewRootToArtboardScale;
correspondingVector.X /= zoom * rootToArtboardScale.X;
correspondingVector.Y /= zoom * rootToArtboardScale.Y;
Vector vector = this.startRootPoint - this.previousRootPoint + correspondingVector;
this.previousRootPoint = this.startRootPoint + correspondingVector;
Vector deltaOffset = matrixToAdornerLayer.Transform(vector);
PathPartSelectionSet partSelectionSet = this.ActiveSceneViewModel.PathPartSelectionSet;
if (partSelectionSet == null)
{
return;
}
foreach (BaseFrameworkElement sceneElement in (IEnumerable <SceneElement>)partSelectionSet.SelectedPaths)
{
this.MovePathParts(partSelectionSet, sceneElement, PathEditMode.ScenePath, deltaOffset);
this.MovePathParts(partSelectionSet, sceneElement, PathEditMode.MotionPath, deltaOffset);
this.MovePathParts(partSelectionSet, sceneElement, PathEditMode.ClippingPath, deltaOffset);
}
}
}