/*
* Copyright (c) 2009-2012 jMonkeyEngine
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.font.plugins;
import com.jme3.asset.*;
import com.jme3.font.BitmapCharacter;
import com.jme3.font.BitmapCharacterSet;
import com.jme3.font.BitmapFont;
import com.jme3.material.Material;
import com.jme3.material.MaterialDef;
import com.jme3.material.RenderState.BlendMode;
import com.jme3.texture.Texture;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.omg.PortableInterceptor.SYSTEM_EXCEPTION;
public class BitmapFontLoader implements AssetLoader {
private BitmapFont load(AssetManager assetManager, String folder, InputStream in) throws IOException{
MaterialDef spriteMat =
(MaterialDef) assetManager.loadAsset(new AssetKey("Common/MatDefs/Misc/Unshaded.j3md"));
BitmapCharacterSet charSet = new BitmapCharacterSet();
Material[] matPages = null;
BitmapFont font = new BitmapFont();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
String regex = "[\\s=]+";
font.setCharSet(charSet);
String line;
while ((line = reader.readLine())!=null){
String[] tokens = line.split(regex);
if (tokens[0].equals("info")){
// Get rendered size
for (int i = 1; i < tokens.length; i++){
if (tokens[i].equals("size")){
charSet.setRenderedSize(Integer.parseInt(tokens[i + 1]));
}
}
}else if (tokens[0].equals("common")){
// Fill out BitmapCharacterSet fields
for (int i = 1; i < tokens.length; i++){
String token = tokens[i];
if (token.equals("lineHeight")){
charSet.setLineHeight(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("base")){
charSet.setBase(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("scaleW")){
charSet.setWidth(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("scaleH")){
charSet.setHeight(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("pages")){
// number of texture pages
matPages = new Material[Integer.parseInt(tokens[i + 1])];
font.setPages(matPages);
}
}
}else if (tokens[0].equals("page")){
int index = -1;
Texture tex = null;
for (int i = 1; i < tokens.length; i++){
String token = tokens[i];
if (token.equals("id")){
index = Integer.parseInt(tokens[i + 1]);
}else if (token.equals("file")){
String file = tokens[i + 1];
if (file.startsWith("\"")){
file = file.substring(1, file.length()-1);
}
TextureKey key = new TextureKey(folder + file, true);
key.setGenerateMips(false);
tex = assetManager.loadTexture(key);
tex.setMagFilter(Texture.MagFilter.Bilinear);
tex.setMinFilter(Texture.MinFilter.BilinearNoMipMaps);
}
}
// set page
if (index >= 0 && tex != null){
Material mat = new Material(spriteMat);
mat.setTexture("ColorMap", tex);
mat.setBoolean("VertexColor", true);
mat.getAdditionalRenderState().setBlendMode(BlendMode.Alpha);
matPages[index] = mat;
}
}else if (tokens[0].equals("char")){
// New BitmapCharacter
BitmapCharacter ch = null;
for (int i = 1; i < tokens.length; i++){
String token = tokens[i];
if (token.equals("id")){
int index = Integer.parseInt(tokens[i + 1]);
ch = new BitmapCharacter();
charSet.addCharacter(index, ch);
}else if (token.equals("x")){
ch.setX(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("y")){
ch.setY(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("width")){
ch.setWidth(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("height")){
ch.setHeight(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("xoffset")){
ch.setXOffset(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("yoffset")){
ch.setYOffset(Integer.parseInt(tokens[i + 1]));
}else if (token.equals("xadvance")){
ch.setXAdvance(Integer.parseInt(tokens[i + 1]));
} else if (token.equals("page")) {
ch.setPage(Integer.parseInt(tokens[i + 1]));
}
}
}else if (tokens[0].equals("kerning")){
// Build kerning list
int index = 0;
int second = 0;
int amount = 0;
for (int i = 1; i < tokens.length; i++){
if (tokens[i].equals("first")){
index = Integer.parseInt(tokens[i + 1]);
}else if (tokens[i].equals("second")){
second = Integer.parseInt(tokens[i + 1]);
}else if (tokens[i].equals("amount")){
amount = Integer.parseInt(tokens[i + 1]);
}
}
BitmapCharacter ch = charSet.getCharacter(index);
ch.addKerning(second, amount);
}
}
return font;
}
public Object load(AssetInfo info) throws IOException {
InputStream in = null;
try {
in = info.openStream();
BitmapFont font = load(info.getManager(), info.getKey().getFolder(), in);
return font;
} finally {
if (in != null){
in.close();
}
}
}
}