BitmapFont

FontDraw FontOffsets FontTotalWidth FontWidths ItalicFillMask MaximumGlyphWidth ScaledSize ScreenCanvasPixelSize UseSpaceIfMissing Validate

Attributes

Ascent Descent GlyphCount Height

Fields

instance BitmapFont tag;
 fontIdentifier: nilObject;
       fontName: nilObject;
       fontSize: 0;
         isBold: false;
       isItalic: false;
   isUnderlined: false;
           bits: nilObject;
     glyphCount: 0;
      pixelSize: 0;
   maximumWidth: 0;
    maximumKern: 0;
         ascent: 0;
        descent: 0;
maximumGlyphWidth: 0;
end instance;

Define Class BitmapFont;
    inherits from Font;
    uses extra;         /* contains sparse glyph map */

    field bits: Object;
    field glyphCount: UnsignedShort, getter;
    field pixelSize: SignedShort;
    field maximumWidth: SignedShort;
    field maximumKern: SignedShort;
    field ascent: SignedShort;
    field descent: SignedShort;
    field maximumGlyphWidth: SignedShort;

    overrides Ascent;
    overrides Descent;
    overrides Height;
    overrides MaximumGlyphWidth;

    overrides FontDraw;
    overrides FontTotalWidth;
    overrides FontWidths;
    overrides FontOffsets;

    overrides ScaledSize;
    
    attribute GlyphCount: UnsignedShort, readOnly;

    intrinsic ScreenCanvasPixelSize(): SignedShort;
        // used in bitmap fonts and TextStyle to convert between bitmap pixels and Micron
    intrinsic ItalicFillMask(dstBox: Box; mask: Canvas; srcBox: Box; colorant: Unsigned; mode: Signed; slant: Signed; descent: SignedShort);
    intrinsic UseSpaceIfMissing(character: Character): Boolean;

#ifdef VALIDATE
    overrides Validate;
#endif
end class;