void ReadAndRender(string fontfile)
{
if (string.IsNullOrEmpty(this.txtInputChar.Text))
{
p.Clear(PixelFarm.Drawing.Color.White);
return;
}
var reader = new OpenFontReader();
char testChar = txtInputChar.Text[0];//only 1 char
int resolution = 96;
//1. read typeface from font file
RenderChoice renderChoice = (RenderChoice)this.cmbRenderChoices.SelectedItem;
switch (renderChoice)
{
case RenderChoice.RenderWithMiniAgg:
{
using (var fs = new FileStream(fontfile, FileMode.Open))
{
Typeface typeFace = reader.Read(fs);
RenderWithMiniAgg(typeFace, testChar, fontSizeInPoint);
}
}
break;
case RenderChoice.RenderWithGdiPlusPath:
{
using (var fs = new FileStream(fontfile, FileMode.Open))
{
Typeface typeFace = reader.Read(fs);
RenderWithGdiPlusPath(typeFace, testChar, fontSizeInPoint, resolution);
}
}
break;
case RenderChoice.RenderWithTextPrinterAndMiniAgg:
{
RenderWithTextPrinterAndMiniAgg(fontfile, this.txtInputChar.Text, fontSizeInPoint, resolution);
}
break;
case RenderChoice.RenderWithMsdfGen:
case RenderChoice.RenderWithSdfGen:
{
using (var fs = new FileStream(fontfile, FileMode.Open))
{
Typeface typeFace = reader.Read(fs);
RenderWithMsdfImg(typeFace, testChar, fontSizeInPoint);
}
}
break;
default:
throw new NotSupportedException();
}
}
void UpdateRenderOutput()
{
if (g == null)
{
destImg = new ActualImage(400, 300, PixelFormat.ARGB32);
imgGfx2d = new ImageGraphics2D(destImg); //no platform
p = new AggCanvasPainter(imgGfx2d);
winBmp = new Bitmap(400, 300, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
g = this.CreateGraphics();
_devVxsTextPrinter.TargetCanvasPainter = p;
_devGdiTextPrinter.TargetGraphics = g;
}
if (string.IsNullOrEmpty(this.txtInputChar.Text))
{
return;
}
var hintTech = (HintTechnique)lstHintList.SelectedItem;
//1. read typeface from font file
RenderChoice renderChoice = (RenderChoice)this.cmbRenderChoices.SelectedItem;
switch (renderChoice)
{
case RenderChoice.RenderWithGdiPlusPath:
{
selectedTextPrinter = _devGdiTextPrinter;
selectedTextPrinter.FontFilename = _selectedFontFilename;
selectedTextPrinter.FontSizeInPoints = _fontSizeInPts;
selectedTextPrinter.HintTechnique = hintTech;
selectedTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
//
selectedTextPrinter.DrawString(this.txtInputChar.Text.ToCharArray(), 0, 0);
}
break;
case RenderChoice.RenderWithTextPrinterAndMiniAgg:
{
//clear previous draw
p.Clear(PixelFarm.Drawing.Color.White);
p.UseSubPixelRendering = chkLcdTechnique.Checked;
p.FillColor = PixelFarm.Drawing.Color.Black;
selectedTextPrinter = _devVxsTextPrinter;
selectedTextPrinter.FontFilename = _selectedFontFilename;
selectedTextPrinter.FontSizeInPoints = _fontSizeInPts;
selectedTextPrinter.HintTechnique = hintTech;
selectedTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
//test print 3 lines
char[] printTextBuffer = this.txtInputChar.Text.ToCharArray();
float x_pos = 0, y_pos = 200;
float lineSpacingPx = selectedTextPrinter.FontLineSpacingPx;
for (int i = 0; i < 3; ++i)
{
selectedTextPrinter.DrawString(printTextBuffer, x_pos, y_pos);
y_pos -= lineSpacingPx;
}
//copy from Agg's memory buffer to gdi
PixelFarm.Agg.Imaging.BitmapHelper.CopyToGdiPlusBitmapSameSize(destImg, winBmp);
g.Clear(Color.White);
g.DrawImage(winBmp, new Point(10, 0));
}
break;
//==============================================
//render 1 glyph for debug and test
case RenderChoice.RenderWithMsdfGen:
case RenderChoice.RenderWithSdfGen:
{
char testChar = this.txtInputChar.Text[0];
using (var fs = new FileStream(_selectedFontFilename, FileMode.Open))
{
var reader = new OpenFontReader();
Typeface typeFace = reader.Read(fs);
RenderWithMsdfImg(typeFace, testChar, _fontSizeInPts);
}
}
break;
case RenderChoice.RenderWithMiniAgg_SingleGlyph:
{
//for test only 1 char
char testChar = this.txtInputChar.Text[0];
using (var fs = new FileStream(_selectedFontFilename, FileMode.Open))
{
var reader = new OpenFontReader();
Typeface typeFace = reader.Read(fs);
RenderWithMiniAgg(typeFace, testChar, _fontSizeInPts);
}
}
break;
default:
throw new NotSupportedException();
}
}
void UpdateRenderOutput()
{
if (!_readyToRender)
{
return;
}
//
if (g == null)
{
destImg = new ActualImage(800, 600, PixelFormat.ARGB32);
imgGfx2d = new ImageGraphics2D(destImg); //no platform
painter = new AggCanvasPainter(imgGfx2d);
winBmp = new Bitmap(destImg.Width, destImg.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
g = this.CreateGraphics();
painter.CurrentFont = new PixelFarm.Drawing.RequestFont("tahoma", 14);
_devVxsTextPrinter = new VxsTextPrinter(painter, _openFontStore);
_devVxsTextPrinter.TargetCanvasPainter = painter;
_devVxsTextPrinter.ScriptLang = _current_script;
_devVxsTextPrinter.PositionTechnique = _devGdiTextPrinter.PositionTechnique;
_devGdiTextPrinter.TargetGraphics = g;
}
if (string.IsNullOrEmpty(this.txtInputChar.Text))
{
return;
}
//test option use be used with lcd subpixel rendering.
//this demonstrate how we shift a pixel for subpixel rendering tech
_devVxsTextPrinter.UseWithLcdSubPixelRenderingTechnique = chkSetPrinterLayoutForLcdSubPix.Checked;
var hintTech = (HintTechnique)lstHintList.SelectedItem;
//1. read typeface from font file
RenderChoice renderChoice = (RenderChoice)this.cmbRenderChoices.SelectedItem;
switch (renderChoice)
{
case RenderChoice.RenderWithGdiPlusPath:
{
selectedTextPrinter = _devGdiTextPrinter;
selectedTextPrinter.Typeface = _typefaceStore.GetTypeface(_selectedInstallFont);
selectedTextPrinter.FontSizeInPoints = _fontSizeInPts;
selectedTextPrinter.HintTechnique = hintTech;
selectedTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
#if DEBUG
GlyphDynamicOutline.dbugTestNewGridFitting = chkTestGridFit.Checked;
GlyphDynamicOutline.dbugActualPosToConsole = chkWriteFitOutputToConsole.Checked;
GlyphDynamicOutline.dbugUseHorizontalFitValue = chkUseHorizontalFitAlign.Checked;
#endif
selectedTextPrinter.DrawString(this.txtInputChar.Text.ToCharArray(), 0, 0);
}
break;
case RenderChoice.RenderWithTextPrinterAndMiniAgg:
{
//clear previous draw
painter.Clear(PixelFarm.Drawing.Color.White);
painter.UseSubPixelRendering = chkLcdTechnique.Checked;
painter.FillColor = PixelFarm.Drawing.Color.Black;
selectedTextPrinter = _devVxsTextPrinter;
selectedTextPrinter.Typeface = _typefaceStore.GetTypeface(_selectedInstallFont);
selectedTextPrinter.FontSizeInPoints = _fontSizeInPts;
selectedTextPrinter.HintTechnique = hintTech;
selectedTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
//test print 3 lines
#if DEBUG
GlyphDynamicOutline.dbugTestNewGridFitting = chkTestGridFit.Checked;
GlyphDynamicOutline.dbugActualPosToConsole = chkWriteFitOutputToConsole.Checked;
GlyphDynamicOutline.dbugUseHorizontalFitValue = chkUseHorizontalFitAlign.Checked;
#endif
char[] printTextBuffer = this.txtInputChar.Text.ToCharArray();
float x_pos = 0, y_pos = 200;
float lineSpacingPx = selectedTextPrinter.FontLineSpacingPx;
for (int i = 0; i < 1; ++i)
{
selectedTextPrinter.DrawString(printTextBuffer, x_pos, y_pos);
y_pos -= lineSpacingPx;
}
//copy from Agg's memory buffer to gdi
PixelFarm.Agg.Imaging.BitmapHelper.CopyToGdiPlusBitmapSameSize(destImg, winBmp);
g.Clear(Color.White);
g.DrawImage(winBmp, new Point(10, 0));
}
break;
//==============================================
//render 1 glyph for debug and test
case RenderChoice.RenderWithMsdfGen:
case RenderChoice.RenderWithSdfGen:
{
char testChar = this.txtInputChar.Text[0];
Typeface typeFace = _typefaceStore.GetTypeface(_selectedInstallFont);
RenderWithMsdfImg(typeFace, testChar, _fontSizeInPts);
}
break;
case RenderChoice.RenderWithMiniAgg_SingleGlyph:
{
selectedTextPrinter = _devVxsTextPrinter;
//for test only 1 char
RenderSingleCharWithMiniAgg(
_typefaceStore.GetTypeface(_selectedInstallFont),
this.txtInputChar.Text[0],
_fontSizeInPts);
}
break;
default:
throw new NotSupportedException();
}
}