/// <summary>
/// Private helper that fills in the points between four points by calling itself
/// recursively in a divide and conquer fashion
/// </summary>
private void FillInGrid(ArrayList pointArray,
Point upperLeft,
Point upperRight,
Point lowerRight,
Point lowerLeft)
{
// this algorithm improves perf by 20%
if (!PointsAreCloseEnough(upperLeft, lowerLeft))
{
Point midPointLeft = LassoSelectionBehavior.GeneratePointBetweenPoints(upperLeft, lowerLeft);
Point midPointRight = LassoSelectionBehavior.GeneratePointBetweenPoints(upperRight, lowerRight);
pointArray.Add(midPointLeft);
pointArray.Add(midPointRight);
FillInPoints(pointArray, midPointLeft, midPointRight);
if (!PointsAreCloseEnough(upperLeft, midPointLeft))
{
FillInGrid(pointArray, upperLeft, upperRight, midPointRight, midPointLeft);
}
//sort the right
if (!PointsAreCloseEnough(midPointLeft, lowerLeft))
{
FillInGrid(pointArray, midPointLeft, midPointRight, lowerRight, lowerLeft);
}
}
}
// Token: 0x06006DC0 RID: 28096 RVA: 0x001F89FC File Offset: 0x001F6BFC
private void FillInPoints(ArrayList pointArray, Point point1, Point point2)
{
if (!this.PointsAreCloseEnough(point1, point2))
{
Point point3 = LassoSelectionBehavior.GeneratePointBetweenPoints(point1, point2);
pointArray.Add(point3);
if (!this.PointsAreCloseEnough(point1, point3))
{
this.FillInPoints(pointArray, point1, point3);
}
if (!this.PointsAreCloseEnough(point3, point2))
{
this.FillInPoints(pointArray, point3, point2);
}
}
}
// Token: 0x06006DC1 RID: 28097 RVA: 0x001F8A50 File Offset: 0x001F6C50
private void FillInGrid(ArrayList pointArray, Point upperLeft, Point upperRight, Point lowerRight, Point lowerLeft)
{
if (!this.PointsAreCloseEnough(upperLeft, lowerLeft))
{
Point point = LassoSelectionBehavior.GeneratePointBetweenPoints(upperLeft, lowerLeft);
Point point2 = LassoSelectionBehavior.GeneratePointBetweenPoints(upperRight, lowerRight);
pointArray.Add(point);
pointArray.Add(point2);
this.FillInPoints(pointArray, point, point2);
if (!this.PointsAreCloseEnough(upperLeft, point))
{
this.FillInGrid(pointArray, upperLeft, upperRight, point2, point);
}
if (!this.PointsAreCloseEnough(point, lowerLeft))
{
this.FillInGrid(pointArray, point, point2, lowerRight, lowerLeft);
}
}
}
/// <summary>
/// Private helper that fills in the points between two points by calling itself
/// recursively in a divide and conquer fashion
/// </summary>
private void FillInPoints(ArrayList pointArray, Point point1, Point point2)
{
// this algorithm improves perf by 20%
if (!PointsAreCloseEnough(point1, point2))
{
Point midPoint = LassoSelectionBehavior.GeneratePointBetweenPoints(point1, point2);
pointArray.Add(midPoint);
if (!PointsAreCloseEnough(point1, midPoint))
{
FillInPoints(pointArray, point1, midPoint);
}
//sort the right
if (!PointsAreCloseEnough(midPoint, point2))
{
FillInPoints(pointArray, midPoint, point2);
}
}
}
/// <summary>
/// Private helper that will turn an element in any nesting level into a stroke
/// in the InkCanvas's coordinate space. This method calls itself recursively
/// </summary>
private void HitTestElement(InkCanvasInnerCanvas parent, UIElement uiElement, List <UIElement> elementsToSelect)
{
ElementCornerPoints elementPoints = LassoSelectionBehavior.GetTransformedElementCornerPoints(parent, uiElement);
if (elementPoints.Set != false)
{
Point[] points = GeneratePointGrid(elementPoints);
//
// perform hit testing against our lasso
//
System.Diagnostics.Debug.Assert(null != _lassoHelper);
if (_lassoHelper.ArePointsInLasso(points, _percentIntersectForElements))
{
elementsToSelect.Add(uiElement);
}
}
//
// we used to recurse into the childrens children. That is no longer necessary
//
}
// Token: 0x06006DBD RID: 28093 RVA: 0x001F8814 File Offset: 0x001F6A14
private void HitTestElement(InkCanvasInnerCanvas parent, UIElement uiElement, List <UIElement> elementsToSelect)
{
LassoSelectionBehavior.ElementCornerPoints transformedElementCornerPoints = LassoSelectionBehavior.GetTransformedElementCornerPoints(parent, uiElement);
if (transformedElementCornerPoints.Set)
{
Point[] points = this.GeneratePointGrid(transformedElementCornerPoints);
if (this._lassoHelper.ArePointsInLasso(points, 60))
{
elementsToSelect.Add(uiElement);
}
}
}
