private static bool IsPointInLine(Point point, FlowPanelLayoutUtilities.LineInfo line, Orientation orientation)
{
switch (orientation)
{
case Orientation.Horizontal:
if (line.StartPoint.Y < point.Y)
{
return(point.Y < line.StartPoint.Y + line.LineLength);
}
return(false);
case Orientation.Vertical:
if (line.StartPoint.X < point.X)
{
return(point.X < line.StartPoint.X + line.LineLength);
}
return(false);
default:
throw new NotImplementedException(ExceptionStringTable.StackPanelUnrecognizedOrientation);
}
}
protected override bool GetInsertionInfo(SceneElement container, int insertionIndex, bool isCursorAtEnd, out Point position, out double length, out Orientation orientation)
{
position = new Point();
length = 0.0;
orientation = Orientation.Horizontal;
IViewPanel viewPanel = MoveStrategy.GetContainerHost(container) as IViewPanel;
if (container == null || viewPanel == null)
{
return(false);
}
orientation = viewPanel.Orientation;
if (viewPanel.ChildrenCount == 0)
{
position = new Point(0.0, 0.0);
length = orientation == Orientation.Horizontal ? viewPanel.RenderSize.Height : viewPanel.RenderSize.Width;
return(true);
}
List <FlowPanelLayoutUtilities.LineInfo> lines = FlowPanelLayoutUtilities.ExtractLines(container);
if (lines.Count <= 0)
{
return(false);
}
FlowPanelLayoutUtilities.LineInfo lineInfo1 = (FlowPanelLayoutUtilities.LineInfo)null;
IViewVisual index = (IViewVisual)null;
ActualBoundsInParent actualBoundsInParent = new ActualBoundsInParent(container);
foreach (FlowPanelLayoutUtilities.LineInfo lineInfo2 in lines)
{
if (lineInfo2.EndElementIndex == insertionIndex - 1 && isCursorAtEnd && insertionIndex < viewPanel.ChildrenCount)
{
index = viewPanel.GetChild(lineInfo2.EndElementIndex);
lineInfo1 = lineInfo2;
length = lineInfo2.LineLength;
break;
}
if (lineInfo2.StartElementIndex <= insertionIndex && insertionIndex <= lineInfo2.EndElementIndex)
{
index = viewPanel.GetChild(insertionIndex);
lineInfo1 = lineInfo2;
length = lineInfo2.LineLength;
break;
}
}
Matrix matrixFromTransform = VectorUtilities.GetMatrixFromTransform(this.AdornerSet.ViewModel.DefaultView.ComputeTransformToVisual((IViewObject)viewPanel, this.Element.Visual));
Point point = new Point(matrixFromTransform.OffsetX, matrixFromTransform.OffsetY);
if (index != null && lineInfo1 != null)
{
Rect rect = actualBoundsInParent[index];
switch (orientation)
{
case Orientation.Horizontal:
double num1 = isCursorAtEnd ? rect.Right : rect.Left;
position = new Point(num1 + point.X, lineInfo1.StartPoint.Y + point.Y);
break;
case Orientation.Vertical:
double num2 = isCursorAtEnd ? rect.Bottom : rect.Top;
position = new Point(lineInfo1.StartPoint.X + point.X, num2 + point.Y);
break;
default:
throw new NotImplementedException(ExceptionStringTable.StackPanelUnrecognizedOrientation);
}
return(true);
}
FlowPanelLayoutUtilities.LineInfo lineInfo3 = lines[lines.Count - 1];
if (insertionIndex <= lineInfo3.EndElementIndex)
{
return(false);
}
IViewVisual child = viewPanel.GetChild(lineInfo3.EndElementIndex);
Rect rect1 = actualBoundsInParent[child];
switch (orientation)
{
case Orientation.Horizontal:
position = new Point(rect1.Right + point.X, lineInfo3.StartPoint.Y + point.Y);
break;
case Orientation.Vertical:
position = new Point(lineInfo3.StartPoint.X + point.X, rect1.Bottom + point.Y);
break;
default:
throw new NotImplementedException(ExceptionStringTable.StackPanelUnrecognizedOrientation);
}
length = lineInfo3.LineLength;
return(true);
}