internal void SelectBrush(TPdfStream DataStream, PathGradientBrush aBrush, RectangleF Rect, RectangleF RotatedCoords, PointF CenterPoint, string DrawingMatrix)
{
ColorBlend cb = null;
try
{
cb = aBrush.InterpolationColors;
}
catch (ArgumentException)//Awful way to tell if it has InterpolationColors, but the framework does not give us a choice.
{
}
if (cb == null || cb.Colors.Length == 1)
{
cb = GetColorBlendWithoutInterpolationColors(aBrush.Blend, aBrush.SurroundColors[0], aBrush.CenterColor);
}
int n = cb.Colors.Length - 1;
if (cb.Colors[0].A != 255 || cb.Colors[n].A != 255)
{
ColorBlend TransparencyBlend = new ColorBlend(2);
TransparencyBlend.Colors[0] = ColorUtil.FromArgb(cb.Colors[0].A, cb.Colors[0].A, cb.Colors[0].A);
TransparencyBlend.Positions[0] = 0;
TransparencyBlend.Colors[1] = ColorUtil.FromArgb(cb.Colors[n].A, cb.Colors[n].A, cb.Colors[n].A);
TransparencyBlend.Positions[1] = 1;
TPdfGradient SMask = Resources.GetGradient(TGradientType.Radial, TransparencyBlend, Rect, aBrush.CenterPoint, RotatedCoords, DrawingMatrix);
SelectTransparency(DataStream, 255, TPdfToken.CommandSetAlphaBrush, SMask.GetSMask(), PdfConv.ToRectangleXY(Rect, true));
}
Resources.SelectGradient(DataStream, TGradientType.Radial, cb, Rect, CenterPoint, RotatedCoords, DrawingMatrix);
}
public int CompareTo(object obj)
{
TPdfGradient p2 = obj as TPdfGradient;
if (p2 == null)
{
return(-1);
}
int Result = GradientType.CompareTo(p2.GradientType);
if (Result != 0)
{
return(Result);
}
Result = CompareCoords(Coords, p2.Coords);
if (Result != 0)
{
return(Result);
}
Result = CompareCoords(RotatedCoords, p2.RotatedCoords);
if (Result != 0)
{
return(Result);
}
if (GradientType == TGradientType.Radial)
{
Result = CenterPoint.X.CompareTo(p2.CenterPoint.X);
if (Result != 0)
{
return(Result);
}
Result = CenterPoint.Y.CompareTo(p2.CenterPoint.Y);
if (Result != 0)
{
return(Result);
}
}
Result = BlendFunction.CompareTo(p2.BlendFunction);
if (Result != 0)
{
return(Result);
}
Result = String.Compare(DrawingMatrix, p2.DrawingMatrix);
if (Result != 0)
{
return(Result);
}
return(0);
}
internal TPdfGradient GetGradient(TGradientType aGradientType, ColorBlend aBlendColors, RectangleF aCoords, PointF aCenterPoint, RectangleF RotatedCoords, string DrawingMatrix)
{
TPdfGradient SearchGradient = new TPdfGradient(GradientPatterns.Count, aGradientType, aBlendColors, aCoords, aCenterPoint, RotatedCoords, DrawingMatrix, Functions);
int Index = GradientPatterns.BinarySearch(0, GradientPatterns.Count, SearchGradient, null); //Only BinarySearch compatible with CF.
if (Index < 0)
GradientPatterns.Insert(~Index, SearchGradient);
else SearchGradient = GradientPatterns[Index];
return SearchGradient;
}
internal void SelectBrush(TPdfStream DataStream, LinearGradientBrush aBrush, RectangleF Rect, RectangleF RotatedCoords, string DrawingMatrix)
{
#if (WPF)
ColorBlend cb = aBrush.GradientStops;
#else
ColorBlend cb = null;
try
{
if (aBrush.Blend == null)
{
cb = aBrush.InterpolationColors; //if it has interpolationcolors, blend must be null.
}
}
catch (ArgumentException) //Awful way to tell if it has Interpolationcolors, but the framework does not give us a choice.
{
}
if (cb == null)
{
cb = GetColorBlendWithoutInterpolationColors(aBrush.Blend, aBrush.LinearColors[0], aBrush.LinearColors[1]);
}
#endif
int n = cb.Colors.Length - 1;
if (cb.Colors[0].A != 255 || cb.Colors[n].A != 255)
{
ColorBlend TransparencyBlend = new ColorBlend(2);
TransparencyBlend.Colors[0] = ColorUtil.FromArgb(cb.Colors[0].A, cb.Colors[0].A, cb.Colors[0].A);
TransparencyBlend.Positions[0] = 0;
TransparencyBlend.Colors[1] = ColorUtil.FromArgb(cb.Colors[n].A, cb.Colors[n].A, cb.Colors[n].A);
TransparencyBlend.Positions[1] = 1;
TPdfGradient SMask = Resources.GetGradient(TGradientType.Axial, TransparencyBlend, Rect, Rect.Location, RotatedCoords, DrawingMatrix);
SelectTransparency(DataStream, 255, TPdfToken.CommandSetAlphaBrush, SMask.GetSMask(), PdfConv.ToRectangleXY(Rect, true));
}
Resources.SelectGradient(DataStream, TGradientType.Axial, cb, Rect, Rect.Location, RotatedCoords, DrawingMatrix);
}
internal void SelectGradient(TPdfStream DataStream, TGradientType aGradientType, ColorBlend aBlendColors, RectangleF aCoords, PointF aCenterPoint, RectangleF aRotatedCoords, string DrawingMatrix)
{
TPdfGradient SearchGradient = GetGradient(aGradientType, aBlendColors, aCoords, aCenterPoint, aRotatedCoords, DrawingMatrix);
SearchGradient.Select(DataStream);
}