/// <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;
}
public Form1()
{
InitializeComponent();
//choose Thai script for 'complex script' testing.
//you can change this to test other script.
_txtServiceClient = OurOpenFontSystem.CreateTextServiceClient();
_currentTextPrinter = new DevGdiTextSpanPrinter(_txtServiceClient);
_currentTextPrinter.ScriptLang = new ScriptLang(ScriptTagDefs.Latin.Tag);
//----------
button1.Click += (s, e) => UpdateRenderOutput();
//simple load test fonts from local test dir
//and send it into test list
chkFillBackground.Checked = true;
chkBorder.CheckedChanged += (s, e) => UpdateRenderOutput();
chkFillBackground.CheckedChanged += (s, e) => UpdateRenderOutput();
//----------
cmbPositionTech.Items.Add(PositionTechnique.OpenFont);
cmbPositionTech.Items.Add(PositionTechnique.Kerning);
cmbPositionTech.Items.Add(PositionTechnique.None);
cmbPositionTech.SelectedIndex = 0;
cmbPositionTech.SelectedIndexChanged += (s, e) => UpdateRenderOutput();
//----------
lstHintList.Items.Add(HintTechnique.None);
lstHintList.Items.Add(HintTechnique.TrueTypeInstruction);
lstHintList.Items.Add(HintTechnique.TrueTypeInstruction_VerticalOnly);
//lstHintList.Items.Add(HintTechnique.CustomAutoFit);
lstHintList.SelectedIndex = 0;
lstHintList.SelectedIndexChanged += (s, e) => UpdateRenderOutput();
//----------
txtInputChar.TextChanged += (s, e) => UpdateRenderOutput();
//
//----------
//show result
InstalledTypeface selectedFF = null;
int selected_index = 0;
int ffcount = 0;
bool found = false;
foreach (InstalledTypeface ff in OurOpenFontSystem.GetInstalledTypefaceIter())
{
if (!found && ff.FontName == "Source Sans Pro")
{
selectedFF = ff;
selected_index = ffcount;
found = true;
}
lstFontList.Items.Add(ff);
ffcount++;
}
//set default font for current text printer
//
//set default font for current text printer
_currentTextPrinter.Typeface = OurOpenFontSystem.ResolveTypeface(selectedFF);
//Alternative Typeface Selector
{
AlternativeTypefaceSelector alternativeTypefaceSelector = new AlternativeTypefaceSelector();
PreferredTypefaceList preferredTypefaces = new PreferredTypefaceList();
preferredTypefaces.AddTypefaceName("Segoe UI Emoji");
alternativeTypefaceSelector.SetPerferredEmoji(preferredTypefaces);
//set alternative typeface selector to printer
_currentTextPrinter.AlternativeTypefaceSelector = alternativeTypefaceSelector;
}
//----------
#if DEBUG
//test get font from typeface store
//InstalledTypeface instFont = OurOpenFontSystem.GetFontCollection().GetFontByPostScriptName("SourceSansPro-Regular");
#endif
if (selected_index < 0)
{
selected_index = 0;
}
lstFontList.SelectedIndex = selected_index;
lstFontList.SelectedIndexChanged += (s, e) =>
{
if (lstFontList.SelectedItem is InstalledTypeface ff)
{
_currentTextPrinter.Typeface = OurOpenFontSystem.ResolveTypeface(ff);
//sample text box
UpdateRenderOutput();
}
};
//----------
lstFontSizes.Items.AddRange(
new object[] {
8, 9,
10, 11,
12,
14,
16,
18, 20, 22, 24, 26, 28, 36, 48, 72, 240, 300, 360
});
lstFontSizes.SelectedIndexChanged += (s, e) =>
{
//new font size
_currentTextPrinter.FontSizeInPoints = (int)lstFontSizes.SelectedItem;
UpdateRenderOutput();
};
lstFontSizes.SelectedIndex = 0;
this.Text = "Gdi+ Sample";
//------
}