void RunSampleF(PixelFarm.Drawing.Painter p)
{
//version 4:
p.Clear(PixelFarm.Drawing.Color.White);
p.UseSubPixelLcdEffect = this.EnableSubPix;
//--------------------------
p.StrokeColor = PixelFarm.Drawing.Color.Black;
p.StrokeWidth = 2.0f;
p.DrawLine(2, 0, 10, 15);
int lineLen = 10;
int x = 30;
int y = 30;
p.FillColor = PixelFarm.Drawing.Color.Black;
VertexStorePool pool = new VertexStorePool();
using (System.IO.FileStream fs = new System.IO.FileStream("c:\\Windows\\Fonts\\tahoma.ttf", System.IO.FileMode.Open, System.IO.FileAccess.Read))
{
Typography.OpenFont.OpenFontReader reader = new Typography.OpenFont.OpenFontReader();
Typography.OpenFont.Typeface typeface = reader.Read(fs);
var builder = new Typography.Contours.GlyphPathBuilder(typeface);
builder.BuildFromGlyphIndex((ushort)typeface.LookupIndex('C'), 16);
PixelFarm.Drawing.Fonts.GlyphTranslatorToVxs tovxs = new Drawing.Fonts.GlyphTranslatorToVxs();
builder.ReadShapes(tovxs);
VertexStore vxs = new VertexStore();
tovxs.WriteOutput(vxs);
p.Fill(vxs);
}
p.FillRect(0, 0, 20, 20);
}
public static PixelFarm.Drawing.Fonts.FontFace LoadFont(string fontpath)
{
// Typeface: Typography.OpenFont
// GlyphPathBuilder: Typography.Contours
// Typography.OpenFont: OpenFontReader
using (FileStream fs = new FileStream(fontpath, FileMode.Open, FileAccess.Read))
{
var reader = new OpenFontReader();
Typeface t = reader.Read(fs);
t.Filename = fontpath;
// t.IsCffFont // (CFF: Compact Font Format) https://www.linotype.com/8120/the-difference-between-cff-and-ttf.html
t.GetAdvanceWidth(123);
// font->potm->otmfsType = pOS2->fsType & 0x30e;
int otmfsType = t.OS2Table.fsType & 0x30e;
short a = t.Ascender;
short b = t.Descender;
short c = t.LineGap;
// t.CalculateScaleToPixelFromPointSize
// t.CalculateScaleToPixel
// var list = t.GetRawGlyphList();
//list[0].
// t.GetGlyphByIndex(123);
var gi = t.GetGlyphByIndex(t.LookupIndex('g'));
// gi.Bounds.Equals
// t.GetGlyphByIndex(t.LookupIndex('g')).MathGlyphInfo.
var builder = new Typography.Contours.GlyphPathBuilder(t);
return(LoadFont(t));
}
}
private void FormTess_Load(object sender, EventArgs e)
{
g = this.pnlGlyph.CreateGraphics();
//string testFont = "d:\\WImageTest\\DroidSans.ttf";
string testFont = "c:\\Windows\\Fonts\\Tahoma.ttf";
using (FileStream fs = new FileStream(testFont, FileMode.Open, FileAccess.Read))
{
OpenFontReader reader = new OpenFontReader();
Typeface typeface = reader.Read(fs);
//--
var builder = new Typography.Contours.GlyphPathBuilder(typeface);
builder.BuildFromGlyphIndex(typeface.LookupIndex('a'), 256);
var txToPath = new GlyphTranslatorToPath();
var writablePath = new WritablePath();
txToPath.SetOutput(writablePath);
builder.ReadShapes(txToPath);
//from contour to
var curveFlattener = new SimpleCurveFlattener();
float[] flattenPoints = curveFlattener.Flatten(writablePath._points, out contourEnds);
glyphPoints2 = flattenPoints;
////--------------------------------------
////raw glyph points
//int j = glyphPoints.Length;
//float scale = typeface.CalculateToPixelScaleFromPointSize(256);
//glyphPoints2 = new float[j * 2];
//int n = 0;
//for (int i = 0; i < j; ++i)
//{
// GlyphPointF pp = glyphPoints[i];
// glyphPoints2[n] = pp.X * scale;
// n++;
// glyphPoints2[n] = pp.Y * scale;
// n++;
//}
////--------------------------------------
}
}
private void TextBox1_KeyUp(object sender, KeyEventArgs e)
{
string oneChar = this.textBox1.Text.Trim();
if (string.IsNullOrEmpty(oneChar))
{
return;
}
//
char selectedChar = oneChar[0];
//
//
//selectedChar = 'e';
if (_g == null)
{
_g = this.pnlGlyph.CreateGraphics();
}
_g.Clear(Color.White);
//string testFont = "d:\\WImageTest\\DroidSans.ttf";
//string testFont = "c:\\Windows\\Fonts\\Tahoma.ttf";
string testFont = "d:\\WImageTest\\Alfa_Slab.ttf";
using (FileStream fs = new FileStream(testFont, FileMode.Open, FileAccess.Read))
{
OpenFontReader reader = new OpenFontReader();
Typeface typeface = reader.Read(fs);
//--
var builder = new Typography.Contours.GlyphPathBuilder(typeface);
builder.BuildFromGlyphIndex(typeface.LookupIndex(selectedChar), 300);
var txToPath = new GlyphTranslatorToPath();
var writablePath = new WritablePath();
txToPath.SetOutput(writablePath);
builder.ReadShapes(txToPath);
//from contour to
var curveFlattener = new SimpleCurveFlattener();
float[] flattenPoints = curveFlattener.Flatten(writablePath._points, out _contourEnds);
_glyphPoints2 = flattenPoints;
////--------------------------------------
////raw glyph points
//int j = glyphPoints.Length;
//float scale = typeface.CalculateToPixelScaleFromPointSize(256);
//glyphPoints2 = new float[j * 2];
//int n = 0;
//for (int i = 0; i < j; ++i)
//{
// GlyphPointF pp = glyphPoints[i];
// glyphPoints2[n] = pp.X * scale;
// n++;
// glyphPoints2[n] = pp.Y * scale;
// n++;
//}
////--------------------------------------
}
DrawOutput();
}
void UpdateOutput()
{
string oneChar = this.textBox1.Text.Trim();
if (string.IsNullOrEmpty(oneChar))
{
return;
}
//
char selectedChar = oneChar[0];
//
//
//selectedChar = 'e';
if (_g == null)
{
_g = this.panel1.CreateGraphics();
}
_g.Clear(Color.White);
//-------
//string testFont = "c:\\Windows\\Fonts\\Tahoma.ttf";
//string testFont = @"D:\projects\Typography\Demo\Windows\TestFonts\SourceSerifPro-Regular.otf";
string testFont = @"D:\projects\Typography\Demo\Windows\TestFonts\SourceSansPro-Light.ttf";
//string testFont = @"D:\projects\Typography\Demo\Windows\TestFonts\Sarabun-Regular.ttf";
using (FileStream fs = new FileStream(testFont, FileMode.Open, FileAccess.Read))
{
OpenFontReader reader = new OpenFontReader();
Typeface typeface = reader.Read(fs);
//--
var builder = new Typography.Contours.GlyphPathBuilder(typeface);
builder.BuildFromGlyphIndex(typeface.LookupIndex(selectedChar), 300);
var txToPath = new GlyphTranslatorToPath();
var writablePath = new WritablePath();
txToPath.SetOutput(writablePath);
builder.ReadShapes(txToPath);
//------
//
//**flatten contour before send to Tess***
var curveFlattener = new SimpleCurveFlattener();
if (rdoSimpleIncCurveFlattener.Checked)
{
if (int.TryParse(txtIncrementalTessStep.Text, out int incSteps))
{
curveFlattener.IncrementalStep = incSteps;
}
curveFlattener.FlattenMethod = CurveFlattenMethod.Inc;
}
else
{
if (double.TryParse(txtDivAngleTolerenceEpsilon.Text, out double angleTolerenceEpsilon))
{
//convert degree to rad
curveFlattener.DivCurveAngleTolerenceEpsilon = DegToRad(angleTolerenceEpsilon);
}
if (int.TryParse(txtDivCurveRecursiveLimit.Text, out int recuvesiveLim))
{
curveFlattener.DivCurveRecursiveLimit = recuvesiveLim;
}
curveFlattener.FlattenMethod = CurveFlattenMethod.Div;
}
_glyphPoints2 = curveFlattener.Flatten(writablePath._points, out _contourEnds);
////--------------------------------------
////raw glyph points
//int j = glyphPoints.Length;
//float scale = typeface.CalculateToPixelScaleFromPointSize(256);
//glyphPoints2 = new float[j * 2];
//int n = 0;
//for (int i = 0; i < j; ++i)
//{
// GlyphPointF pp = glyphPoints[i];
// glyphPoints2[n] = pp.X * scale;
// n++;
// glyphPoints2[n] = pp.Y * scale;
// n++;
//}
////--------------------------------------
}
DrawOutput();
}
