public static PageParameters? ComputePage(BookPage source, Point p, CornerOrigin origin)
{
Point point;
Point point2;
Point point3;
Point point4;
CheckParams(ref source, ref p, origin);
PageParameters parameters = new PageParameters(source.RenderSize);
double num = ComputeProgressRatio(source, p, origin);
if (num > 1.5)
{
num = (2.0 - num) / 0.5;
}
else
{
num = 1.0;
}
parameters.Page0ShadowOpacity = num;
double width = source.RenderSize.Width;
double height = source.RenderSize.Height;
switch (origin)
{
case CornerOrigin.TopLeft:
p.X = width - p.X;
p.Y = height - p.Y;
break;
case CornerOrigin.TopRight:
p.Y = height - p.Y;
break;
case CornerOrigin.BottomLeft:
p.X = width - p.X;
break;
}
if (p.X >= width)
{
return null;
}
double num4 = -(p.Y - height) / (p.X - width);
double x = ((width + p.X) / 2.0) - (num4 * ((height + p.Y) / 2.0));
double y = (width - x) / num4;
double num7 = (num4 * height) + x;
double num8 = (Math.Atan((width - p.X) / (y - p.Y)) * 180.0) / 3.1415926535897931;
if ((num4 < 0.0) && (p.Y < y))
{
num8 -= 180.0;
}
switch (origin)
{
case CornerOrigin.TopLeft:
parameters.Page1RotateAngle = -num8;
parameters.Page1RotateCenterX = width - p.X;
parameters.Page1RotateCenterY = height - p.Y;
parameters.Page1TranslateX = -p.X;
parameters.Page1TranslateY = height - p.Y;
break;
case CornerOrigin.TopRight:
parameters.Page1RotateAngle = num8;
parameters.Page1RotateCenterX = p.X;
parameters.Page1RotateCenterY = height - p.Y;
parameters.Page1TranslateX = p.X;
parameters.Page1TranslateY = height - p.Y;
break;
case CornerOrigin.BottomLeft:
parameters.Page1RotateAngle = num8;
parameters.Page1RotateCenterX = width - p.X;
parameters.Page1RotateCenterY = p.Y;
parameters.Page1TranslateX = -p.X;
parameters.Page1TranslateY = p.Y - height;
break;
case CornerOrigin.BottomRight:
parameters.Page1RotateAngle = -num8;
parameters.Page1RotateCenterX = p.X;
parameters.Page1RotateCenterY = p.Y;
parameters.Page1TranslateX = p.X;
parameters.Page1TranslateY = p.Y - height;
break;
}
switch (origin)
{
case CornerOrigin.TopLeft:
if (num8 >= 0.0)
{
parameters.Page1ClippingFigure.StartPoint = new Point(width, height);
parameters.Page1ClippingFigure.Segments.Clear();
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(x, height), false));
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(width, height - y), false));
break;
}
parameters.Page1ClippingFigure.StartPoint = new Point(width, 0.0);
parameters.Page1ClippingFigure.Segments.Clear();
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(num7, 0.0), false));
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(width, height - y), false));
break;
case CornerOrigin.TopRight:
if (num8 >= 0.0)
{
parameters.Page1ClippingFigure.StartPoint = new Point(0.0, height);
parameters.Page1ClippingFigure.Segments.Clear();
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(width - x, height), false));
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(0.0, height - y), false));
break;
}
parameters.Page1ClippingFigure.StartPoint = new Point(0.0, 0.0);
parameters.Page1ClippingFigure.Segments.Clear();
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(width - num7, 0.0), false));
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(0.0, height - y), false));
break;
case CornerOrigin.BottomLeft:
if (num8 >= 0.0)
{
parameters.Page1ClippingFigure.StartPoint = new Point(width, 0.0);
parameters.Page1ClippingFigure.Segments.Clear();
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(x, 0.0), false));
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(width, y), false));
break;
}
parameters.Page1ClippingFigure.StartPoint = new Point(width, height);
parameters.Page1ClippingFigure.Segments.Clear();
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(num7, height), false));
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(width, y), false));
break;
case CornerOrigin.BottomRight:
if (num8 >= 0.0)
{
parameters.Page1ClippingFigure.StartPoint = new Point(0.0, 0.0);
parameters.Page1ClippingFigure.Segments.Clear();
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(width - x, 0.0), false));
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(0.0, y), false));
break;
}
parameters.Page1ClippingFigure.StartPoint = new Point(0.0, height);
parameters.Page1ClippingFigure.Segments.Clear();
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(width - num7, height), false));
parameters.Page1ClippingFigure.Segments.Add(new LineSegment(new Point(0.0, y), false));
break;
}
parameters.Page2ClippingFigure.StartPoint = new Point(width - parameters.Page1ClippingFigure.StartPoint.X, parameters.Page1ClippingFigure.StartPoint.Y);
parameters.Page2ClippingFigure.Segments = parameters.Page1ClippingFigure.Segments.Clone();
((LineSegment)parameters.Page2ClippingFigure.Segments[0]).Point = new Point(width - ((LineSegment)parameters.Page2ClippingFigure.Segments[0]).Point.X, ((LineSegment)parameters.Page2ClippingFigure.Segments[0]).Point.Y);
((LineSegment)parameters.Page2ClippingFigure.Segments[1]).Point = new Point(width - ((LineSegment)parameters.Page2ClippingFigure.Segments[1]).Point.X, ((LineSegment)parameters.Page2ClippingFigure.Segments[1]).Point.Y);
CornerOrigin topLeft = CornerOrigin.TopLeft;
switch (origin)
{
case CornerOrigin.TopLeft:
topLeft = CornerOrigin.TopRight;
break;
case CornerOrigin.TopRight:
topLeft = CornerOrigin.TopLeft;
break;
case CornerOrigin.BottomLeft:
topLeft = CornerOrigin.BottomRight;
break;
case CornerOrigin.BottomRight:
topLeft = CornerOrigin.BottomLeft;
break;
}
NLinearGradientHelper.ComputePointsFromTop(width, height, width - num7, height - y, 20.0, 20.0, topLeft, out point, out point2);
parameters.Page1ReflectionStartPoint = point;
parameters.Page1ReflectionEndPoint = point2;
double num9 = Math.Sqrt(Math.Pow(p.X - width, 2.0) + Math.Pow(p.Y - height, 2.0));
double num10 = num9 / 10.0;
double num11 = num9 / 10.0;
NLinearGradientHelper.ComputePoints(width, height, width - num7, height - y, num10, num11, origin, out point3, out point4);
parameters.Page0ShadowStartPoint = point3;
parameters.Page0ShadowEndPoint = point4;
return new PageParameters?(parameters);
}
protected virtual void ApplyParameters(PageParameters parameters)
{
if (this.m_refPART_ReflectionBackground != null)
this.m_refPART_ReflectionBackground.Opacity = parameters.Page0ShadowOpacity;
if (this.m_refPART_TransformRotate != null)
{
this.m_refPART_TransformRotate.Angle = parameters.Page1RotateAngle;
this.m_refPART_TransformRotate.CenterX = parameters.Page1RotateCenterX;
this.m_refPART_TransformRotate.CenterY = parameters.Page1RotateCenterY;
}
if (this.m_refPART_TransformTranslate != null)
{
this.m_refPART_TransformTranslate.X = parameters.Page1TranslateX;
this.m_refPART_TransformTranslate.Y = parameters.Page1TranslateY;
}
if (this.m_refPART_ClippingBackPage != null)
{
this.m_refPART_ClippingBackPage.Figures.Clear();
this.m_refPART_ClippingBackPage.Figures.Add(parameters.Page1ClippingFigure);
}
if (this.m_refPART_ClippingFrontPage != null)
{
((RectangleGeometry)this.m_refPART_ClippingFrontPage.Geometry1).Rect = new Rect(parameters.RenderSize);
PathGeometry pathGeometry = (PathGeometry)this.m_refPART_ClippingFrontPage.Geometry2;
pathGeometry.Figures.Clear();
pathGeometry.Figures.Add(parameters.Page2ClippingFigure);
}
if (this.m_refPART_ReflectionBackground != null)
{
this.m_refPART_ReflectionBackground.StartPoint = parameters.Page1ReflectionStartPoint;
this.m_refPART_ReflectionBackground.EndPoint = parameters.Page1ReflectionEndPoint;
}
if (this.m_refPART_ShadowBackground == null)
return;
this.m_refPART_ShadowBackground.StartPoint = parameters.Page0ShadowStartPoint;
this.m_refPART_ShadowBackground.EndPoint = parameters.Page0ShadowEndPoint;
}