Java 类com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator.FreeTypeBitmapFontData 实例源码

@Override
public void create () {
    boolean flip = false;
    batch = new SpriteBatch();
    if (flip) {
        OrthographicCamera cam = new OrthographicCamera();
        cam.setToOrtho(flip);
        cam.update();
        batch.setProjectionMatrix(cam.combined);
    }
    font = new BitmapFont(Gdx.files.internal("data/arial-15.fnt"), flip);
    FileHandle fontFile = Gdx.files.internal("data/arial.ttf");

    FreeTypeFontGenerator generator = new FreeTypeFontGenerator(fontFile);

    FreeTypeFontParameter parameter = new FreeTypeFontParameter();
    parameter.size = 15;
    parameter.flip = flip;
    parameter.genMipMaps = true;

    FreeTypeBitmapFontData fontData = generator.generateData(parameter);
    ftFont = generator.generateFont(parameter);
    generator.dispose();
}

/**
 * Convenience method for generating a font, and then writing the fnt and
 * png files. Writing a generated font to files allows the possibility of
 * only generating the fonts when they are missing, otherwise loading from a
 * previously generated file.
 * 
 * @param fontFile
 * @param fontSize
 * @param destiny
 */
private void generateFiles(String fontName, FileHandle fontFile,
        int fontSize, int pageWidth, int pageHeight, FileHandle destiny) {
    FreeTypeFontGenerator generator = new FreeTypeFontGenerator(fontFile);

    PixmapPacker packer = new PixmapPacker(pageWidth, pageHeight,
            Pixmap.Format.RGBA8888, 2, false);
    FreeTypeFontParameter param = new FreeTypeFontParameter();
    param.packer = packer;
    param.characters = FreeTypeFontGenerator.DEFAULT_CHARS;
    param.size = fontSize;
    param.flip = false;

    FreeTypeFontGenerator.FreeTypeBitmapFontData fontData = generator
            .generateData(param);

    saveFontToFile(fontData, fontSize, fontName, packer, destiny);
    generator.dispose();
    packer.dispose();
}

private void saveFontToFile(FreeTypeBitmapFontData data, int fontSize,
        String fontName, PixmapPacker packer, FileHandle destiny) {
    FileHandle fontFile = Gdx.files.absolute(destiny.file()
            .getAbsolutePath() + File.separator + fontName + ".fnt"); // .fnt
    // path     

    BitmapFontWriter.setOutputFormat(BitmapFontWriter.OutputFormat.Text);

    String[] pageRefs = BitmapFontWriter.writePixmaps(packer.getPages(),
            destiny, fontName); // png dir path
    Gdx.app.debug(TAG, String.format(
            "Saving font [%s]: fontfile: %s, pixmapDir: %s\n", fontName,
            fontFile, destiny));
    BitmapFontWriter.writeFont(data, pageRefs, fontFile,
            new BitmapFontWriter.FontInfo(fontName, fontSize), 1, 1);
}

@Override
public BitmapFont loadSync (AssetManager manager, String fileName, FileHandle file, FreeTypeFontLoaderParameter parameter) {
    if(parameter == null) throw new RuntimeException("FreetypeFontParameter must be set in AssetManager#load to point at a TTF file!");
    FreeTypeFontGenerator generator = manager.get(parameter.fontFileName + ".gen", FreeTypeFontGenerator.class);    
    FreeTypeBitmapFontData data = generator.generateData(parameter.fontParameters);
    BitmapFont font = new BitmapFont(data, data.getTextureRegions(), false);
    font.setOwnsTexture(true);
    return font;
}

@Override
public BitmapFont loadSync( AssetManager manager, String fileName, FileHandle file, BitmapFontParameter parameter ) {
    int fontSize = 10;
    String scrubbedFileName = fileName;

    int qMark = fileName.lastIndexOf( "?" );
    if ( qMark != -1 ) {
        scrubbedFileName = scrubbedFileName.substring( 0, qMark );

        Matcher m = argsPtn.matcher( fileName );
        m.region( qMark+1, fileName.length() );
        while ( m.lookingAt() ) {
            if ( m.group( 1 ).equals( "size" ) ) {
                fontSize = Integer.parseInt( m.group( 2 ) );
            }
            if ( m.group( 3 ).length() > 0 ) break;  // Hit the "#" separator.
            m.region( m.end(), fileName.length() );
        }
    }

    boolean flip = parameter != null ? parameter.flip : false;

    FreeTypeFontGenerator generator = new FreeTypeFontGenerator( file );

    FreeTypeBitmapFontData data = generator.generateData( fontSize, FreeTypeFontGenerator.DEFAULT_CHARS, flip );
    generator.dispose();

    return new BitmapFont( data, data.getTextureRegions(), true );
}