public PixelFarm.Drawing.RectangleF GetBounds()
{
if (_cacheBoundEval)
{
return(_cacheBounds);
}
if (_figures != null)
{
PixelFarm.Drawing.RectangleF bounds = new Drawing.RectangleF();
if (_figures.FigureCount > 0)
{
bounds = _figures[0].GetBounds(); //start
for (int i = 1; i < _figures.FigureCount; ++i)
{
bounds = PixelFarm.Drawing.RectangleF.Union(bounds, _figures[i].GetBounds());
}
}
_cacheBoundEval = true;
return(_cacheBounds = bounds);
}
else
{
//single figure
_cacheBoundEval = true;
return(_cacheBounds = _figure.GetBounds());
}
}
//------------------------------------------------
public static System.Drawing.RectangleF ToRectF(this PixelFarm.Drawing.RectangleF rect)
{
return(new System.Drawing.RectangleF(rect.X, rect.Y, rect.Width, rect.Height));
}
public static SKRect ConvToRect(PixelFarm.Drawing.RectangleF r)
{
return(new SKRect(r.X, r.Y, r.Right, r.Bottom));
}
internal unsafe static GlyphImage BuildMsdfFontImage()
{
IntPtr shape = MyFtLib.CreateShape();
IntPtr cnt = MyFtLib.ShapeAddBlankContour(shape);
//MyFtLib.ContourAddLinearSegment(cnt, 10, 10, 25, 25);
//MyFtLib.ContourAddLinearSegment(cnt, 25, 25, 15, 10);
//MyFtLib.ContourAddLinearSegment(cnt, 15, 10, 10, 10);
//
MyFtLib.ContourAddLinearSegment(cnt, 10, 10, 25, 25);
MyFtLib.ContourAddQuadraticSegment(cnt, 25, 25, 15, 30, 10, 15);
MyFtLib.ContourAddLinearSegment(cnt, 10, 15, 10, 10);
double s_left, s_bottom, s_right, s_top;
MyFtLib.ShapeFindBounds(shape, out s_left, out s_bottom, out s_right, out s_top);
var glyphBounds = new PixelFarm.Drawing.RectangleF((float)s_left, (float)s_top, (float)(s_right - s_left), (float)(s_top - s_bottom));
//then create msdf texture
if (!MyFtLib.ShapeValidate(shape))
{
throw new NotSupportedException();
}
MyFtLib.ShapeNormalize(shape);
int borderXY = 0;
int w = (int)Math.Ceiling(glyphBounds.Width) + (borderXY + borderXY);
int h = (int)(Math.Ceiling(glyphBounds.Height)) + (borderXY + borderXY);
if (w == 0)
{
w = 5;
h = 5;
}
int[] outputBuffer = new int[w * h];
GlyphImage glyphImage = new GlyphImage(w, h);
glyphImage.BorderXY = borderXY;
glyphImage.OriginalGlyphBounds = Typography.Contours.RectangleF.FromLTRB(
glyphBounds.Left,
glyphBounds.Top,
glyphBounds.Right,
glyphBounds.Bottom);
unsafe
{
fixed(int *output_header = &outputBuffer[0])
{
float dx = 0;
float dy = 0;
if (s_left < 0)
{
//make it positive
dx = (float)-s_left;
}
else if (s_left > 0)
{
}
if (s_bottom < 0)
{
//make it positive
dy = (float)-s_bottom;
}
else if (s_bottom > 0)
{
}
//this glyph image has border (for msdf to render correctly)
MyFtLib.MyFtGenerateMsdf(shape, w, h, 4, 1, dx + borderXY, dy + borderXY, -1, 3, output_header);
MyFtLib.DeleteUnmanagedObj(shape);
}
glyphImage.SetImageBuffer(outputBuffer, true);
}
return(glyphImage);
}
public static void Rect(ref PixelFarm.Drawing.RectangleF rect)
{
GL.Rect(rect.Left, rect.Top, rect.Right, rect.Bottom);
}
//------------------------------------------------
public static SkiaSharp.SKRect ToRectF(this PixelFarm.Drawing.RectangleF rect)
{
return(SkiaSharp.SKRect.Create(rect.X, rect.Y, rect.Width, rect.Height));
}
