void InitGraphics()
{
//INIT ONCE
if (_g != null)
{
return;
}
//
_destImg = new MemBitmap(800, 600);
_painter = AggPainter.Create(_destImg);
_winBmp = new Bitmap(_destImg.Width, _destImg.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
_g = this.CreateGraphics();
_defaultReqFont = new PixelFarm.Drawing.RequestFont("Source Sans Pro", 10);
_painter.CurrentFont = _defaultReqFont;
_textService = new Typography.Text.OpenFontTextService();
_textService.LoadFontsFromFolder("../../../TestFonts");
_textService.UpdateUnicodeRanges();
_devVxsTextPrinter = new PixelFarm.Drawing.VxsTextSpanPrinter(_painter, _textService.CreateNewServiceClient());
_devVxsTextPrinter.SetSvgBmpBuilderFunc(PaintLab.SvgBuilderHelper.ParseAndRenderSvg);
_devVxsTextPrinter.ScriptLang = new ScriptLang(ScriptTagDefs.Latin.Tag);
_devVxsTextPrinter.PositionTechnique = Typography.TextLayout.PositionTechnique.OpenFont;
//Alternative Typeface selector..
_myAlternativeTypefaceSelector = new Typography.Text.AlternativeTypefaceSelector();
{
//------------
//TODO: review this again
//load from config?
//------------
//arabic
//1. create prefer typeface list for arabic script
var preferTypefaces = new Typography.FontCollections.PreferredTypefaceList();
preferTypefaces.AddTypefaceName("Noto Sans Arabic UI");
//2. set unicode ranges and prefered typeface list.
_myAlternativeTypefaceSelector.SetPreferredTypefaces(
new[] { Typography.TextBreak.Unicode13RangeInfoList.Arabic,
Typography.TextBreak.Unicode13RangeInfoList.Arabic_Supplement,
Typography.TextBreak.Unicode13RangeInfoList.Arabic_Extended_A },
preferTypefaces);
}
{
//latin
var preferTypefaces = new Typography.FontCollections.PreferredTypefaceList();
preferTypefaces.AddTypefaceName("Sarabun");
_myAlternativeTypefaceSelector.SetPreferredTypefaces(
new[] { Typography.TextBreak.Unicode13RangeInfoList.C0_Controls_and_Basic_Latin,
Typography.TextBreak.Unicode13RangeInfoList.C1_Controls_and_Latin_1_Supplement,
Typography.TextBreak.Unicode13RangeInfoList.Latin_Extended_A,
Typography.TextBreak.Unicode13RangeInfoList.Latin_Extended_B, },
preferTypefaces);
}
_devVxsTextPrinter.AlternativeTypefaceSelector = _myAlternativeTypefaceSelector;
}
/// <summary>
/// use vertex buffer object
/// </summary>
public GLBitmapGlyphTextPrinter(GLPainter painter, OpenFontTextService textServices)
{
//create text printer for use with canvas painter
_painter = painter;
_pcx = painter.Core;
_txtClient = textServices.CreateNewServiceClient();
//_currentTextureKind = TextureKind.Msdf;
//_currentTextureKind = TextureKind.StencilGreyScale;
_myGLBitmapFontMx = new MySimpleGLBitmapFontManager(textServices);
//--------
//load preview of pre-built texture font
//temp fix, TODO: review this again
string[] maybeTextureInfoFiles = Directory.GetFiles(Directory.GetCurrentDirectory(), "*.tx_info");
if (maybeTextureInfoFiles.Length > 0)
{
for (int i = 0; i < maybeTextureInfoFiles.Length; ++i)
{
//try read
using (FileStream fs = new FileStream(maybeTextureInfoFiles[i], FileMode.Open))
{
try
{
_myGLBitmapFontMx.LoadBitmapAtlasPreview(fs);
}
catch (Exception ex)
{
}
}
}
}
//LoadFontAtlas("tahoma_set1.multisize_fontAtlas", "tahoma_set1.multisize_fontAtlas.png");
//test textures...
//GlyphPosPixelSnapX = GlyphPosPixelSnapKind.Integer;
//GlyphPosPixelSnapY = GlyphPosPixelSnapKind.Integer;
//**
//ChangeFont(painter.CurrentFont);
//
//TextDrawingTechnique = GlyphTexturePrinterDrawingTechnique.LcdSubPixelRendering; //default
TextDrawingTechnique = GlyphTexturePrinterDrawingTechnique.Stencil; //default
UseVBO = true;
TextBaseline = PixelFarm.Drawing.TextBaseline.Top;
//TextBaseline = TextBaseline.Alphabetic;
//TextBaseline = TextBaseline.Bottom;
//TODO: temp fix,
//...
var myAlternativeTypefaceSelector = new AlternativeTypefaceSelector();
{
var preferTypefaces = new Typography.FontCollections.PreferredTypefaceList();
preferTypefaces.AddTypefaceName("Source Sans Pro");
preferTypefaces.AddTypefaceName("Sarabun");
myAlternativeTypefaceSelector.SetPreferredTypefaces(
new[] { Typography.TextBreak.Unicode13RangeInfoList.C0_Controls_and_Basic_Latin,
Typography.TextBreak.Unicode13RangeInfoList.C1_Controls_and_Latin_1_Supplement,
Typography.TextBreak.Unicode13RangeInfoList.Latin_Extended_A,
Typography.TextBreak.Unicode13RangeInfoList.Latin_Extended_B, },
preferTypefaces);
}
{
var preferTypefaces = new Typography.FontCollections.PreferredTypefaceList();
preferTypefaces.AddTypefaceName("Twitter Color Emoji");
myAlternativeTypefaceSelector.SetPerferredEmoji(preferTypefaces);
}
AlternativeTypefaceSelector = myAlternativeTypefaceSelector;
}
