Android Open Source - jmini3d Font

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License

The source code is released under:

Copyright 2012 Mobialia http://www.mobialia.com/ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to ...

Java Source Code

package jmini3d;
//from w w  w .  ja v  a  2  s  . co m
import java.util.ArrayList;
import java.util.HashMap;

import jmini3d.geometry.SpriteGeometry;
import jmini3d.material.SpriteMaterial;

/**
 * http://www.angelcode.com/products/bmfont/doc/file_format.html
 */
public class Font {

  public class CharSprite {
    int x;
    int y;
    int width;
    int height;
    int xoffset;
    int yoffset;
    int xadvance;
    int page;
    int chnl;
  }

  public class Kerning {
    char first;
    char second;
    int amount;
  }

  int lineHeight, base, scaleW, scaleH, pages, packed, alphaChnl, redChnl, greenChnl, blueChnl;
  ArrayList<Texture> textures = new ArrayList<Texture>();

  HashMap<Character, CharSprite> chars = new HashMap<Character, CharSprite>();
  ArrayList<Kerning> kernings = new ArrayList<Kerning>();

  public Font() {

  }

  public void setCommon(int lineHeight, int base, int scaleW, int scaleH, int pages, int packed, int alphaChnl, int redChnl, int greenChnl, int blueChnl) {
    this.lineHeight = lineHeight;
    this.base = base;
    this.scaleW = scaleW;
    this.scaleH = scaleH;
    this.pages = pages;
    this.packed = packed;
    this.alphaChnl = alphaChnl;
    this.redChnl = redChnl;
    this.greenChnl = greenChnl;
    this.blueChnl = blueChnl;
  }

  public void addPage(int id, String file) {
    Texture texture = new Texture(file);
    textures.add(texture);
  }

  public void addChar(int id, int x, int y, int width, int height, int xoffset, int yoffset, int xadvance, int page, int chnl) {
    CharSprite cs = new CharSprite();
    char theChar = Character.toChars(id)[0];
    cs.x = x;
    cs.y = y;
    cs.width = width;
    cs.height = height;
    cs.xoffset = xoffset;
    cs.yoffset = yoffset;
    cs.xadvance = xadvance;
    cs.page = page;
    cs.chnl = chnl;
    chars.put(theChar, cs);
  }

  public void addKerning(int first, int second, int amount) {
    Kerning kerning = new Kerning();
    kerning.first = Character.toChars(Integer.valueOf(first))[0];
    kerning.second = Character.toChars(Integer.valueOf(second))[0];
    kerning.amount = Integer.valueOf(amount);
    kernings.add(kerning);
  }

  public Object3d getTextLine(String text) {
    return getTextLine(text, null);
  }

  public Object3d getTextLine(String text, Rect fontMetrics) {
    int length = text.length();
    SpriteGeometry geometry = new SpriteGeometry(text.length());

    int x = 0;
    int y = 0;
    char oldChar = (char) -1;
    for (int i = 0; i < length; i++) {
      char c = text.charAt(i);
      CharSprite cs = chars.get(c);
      if (cs == null) {
        System.out.print("Character " + c + " not found in bitmap texture");
        continue;
      }
      for (Kerning k : kernings) {
        if (k.first == oldChar && k.second == c) {
          x += k.amount;
        }
      }

      geometry.addSprite(x + cs.xoffset, y + cs.yoffset, x + cs.xoffset + cs.width, y + cs.yoffset + cs.height, //
          Utils.p(cs.x + 1, scaleW), Utils.p(cs.y + 1, scaleH), Utils.p(cs.x + cs.width + 1, scaleW), Utils.p(cs.y + cs.height + 1, scaleH));
      x += cs.xadvance;
      oldChar = c;
    }
    if (fontMetrics != null) {
      fontMetrics.right = x;
      fontMetrics.bottom = lineHeight;
    }
    return new Object3d(geometry, new SpriteMaterial(textures.get(0)));
  }

  public void clear() {
    textures.clear();
    chars.clear();
    kernings.clear();
  }
}

Java Source Code List

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