FontUtils.java

package me.lordethan.cryton.ttf;

import static org.lwjgl.opengl.GL11.GL_BLEND;
import static org.lwjgl.opengl.GL11.GL_LIGHTING;
import static org.lwjgl.opengl.GL11.GL_TEXTURE_2D;
import static org.lwjgl.opengl.GL11.glDisable;
import static org.lwjgl.opengl.GL11.glEnable;
import static org.lwjgl.opengl.GL11.glIsEnabled;
import static org.lwjgl.opengl.GL11.glPopMatrix;
import static org.lwjgl.opengl.GL11.glPushMatrix;
import org.lwjgl.opengl.GL11;

import java.awt.Font;

import net.minecraft.client.Minecraft;
import net.minecraft.util.StringUtils;

import org.lwjgl.opengl.GL11;
import org.newdawn.slick.UnicodeFont;
import org.newdawn.slick.font.effects.ColorEffect;

public class FontUtils {
	
    private Minecraft mc = Minecraft.getMinecraft();
    
    private final UnicodeFont unicodeFont;
    private final int[] colorCodes = new int[32];
    
    private int fontType, size;
    private String fontName;
   
    private float kerning;

    public FontUtils(String fontName, int fontType, int size) {
            this(fontName, fontType, size, 0);
    }
   
    public FontUtils(String fontName, int fontType, int size, float kerning) {
    	this.fontName = fontName;
    	this.fontType = fontType;
    	this.size = size;
    	
    	this.unicodeFont = new UnicodeFont(new Font(fontName, fontType, size));
        this.kerning = kerning;
       
    	this.unicodeFont.addAsciiGlyphs();
        this.unicodeFont.getEffects().add(new ColorEffect(java.awt.Color.WHITE));
        
        try {
            this.unicodeFont.loadGlyphs();
        } catch(Exception e) {
            e.printStackTrace();
        }
           
        for(int i = 0; i < 32; i++) {
            int shadow = (i >> 3 & 1) * 85;
            int red = (i >> 2 & 1) * 170 + shadow;
            int green = (i >> 1 & 1) * 170 + shadow;
            int blue = (i >> 0 & 1) * 170 + shadow;

            if(i == 6) {
                red += 85;
            }

            if(i >= 16) {
                red /= 4;
                green /= 4;
                blue /= 4;
            }

            this.colorCodes[i] = (red & 255) << 16 | (green & 255) << 8 | blue & 255;
        }
        
    }
    
    public int drawString(String text, float x, float y, int color) {
    	x *= 2.0F;
        y *= 2.0F;
        float originalX = x;
       
        GL11.glPushMatrix();
        GL11.glScaled(0.5F, 0.5F, 0.5F);
        
        boolean blend = GL11.glIsEnabled(GL11.GL_BLEND);
        boolean lighting = GL11.glIsEnabled(GL11.GL_LIGHTING);
        boolean texture = GL11.glIsEnabled(GL11.GL_TEXTURE_2D);
        if(!blend)
                glEnable(GL11.GL_BLEND);
        if(lighting)
                glDisable(GL11.GL_LIGHTING);
        if(texture)
                glDisable(GL11.GL_TEXTURE_2D);
       
        int currentColor = color;
        char[] characters = text.toCharArray();
       
        int index = 0;
        for(char c : characters) {
                if(c == '\r') {
                        x = originalX;
                }
                if(c == '\n') {
                        y += getHeight(Character.toString(c)) * 2.0F;
                }
                if(c != '\247' && (index == 0 || index == characters.length - 1 || characters[index - 1] != '\247')) {
                        unicodeFont.drawString(x, y, Character.toString(c), new org.newdawn.slick.Color(currentColor));
                        x += (getWidth(Character.toString(c)) * 2.0F);
                } else if(c == ' ') {
                        x += unicodeFont.getSpaceWidth();
                } else if(c == '\247' && index != characters.length - 1) {
                        int codeIndex = "0123456789abcdefg".indexOf(text.charAt(index + 1));
                        if(codeIndex < 0) continue;
                       
                        int col = this.colorCodes[codeIndex];
                        currentColor = col;
                }
               
                index++;
        }

        GL11.glScaled(2.0F, 2.0F, 2.0F);
        if(texture)
        	GL11.glEnable(GL11.GL_TEXTURE_2D);
        if(lighting)
        	GL11.glEnable(GL11.GL_LIGHTING);
        if(!blend)
        	GL11.glDisable(GL11.GL_BLEND);
        glPopMatrix();
        return (int) x;
    }
   
    public int drawStringWithShadow(String text, float x, float y, int color) {
        drawString(StringUtils.stripControlCodes(text), x + 0.5F, y + 0.5F, 0x000000);
        return drawString(text, x, y, color);
    }
   
    public void drawCenteredString(String text, float x, float y, int color) {
        drawString(text, x - (int)getWidth(text) / 2, y, color);
    }
   
    public void drawCenteredStringWithShadow(String text, float x, float y, int color) {
        drawCenteredString(StringUtils.stripControlCodes(text), x+0.5F, y+0.5F, color);
        drawCenteredString(text, x, y, color);
    }
   
    public float getWidth(String s) {
        float width = 0.0F;
        
        String str = StringUtils.stripControlCodes(s);
        for(char c : str.toCharArray()) {
                width += unicodeFont.getWidth(Character.toString(c)) + this.kerning;
        }
       
        return width / 2.0F;
    }
   
    public float getCharWidth(char c){
    	return unicodeFont.getWidth(String.valueOf(c));
    }
    
    public float getHeight(String s) {
        return unicodeFont.getHeight(s) / 2.0F;
    }
   
    public UnicodeFont getFont() {
        return this.unicodeFont;
    }
    
    public String trimStringToWidth(String par1Str, int par2)
    {
        StringBuilder var4 = new StringBuilder();
        float var5 = 0.0F;
        int var6 = 0;
        int var7 = 1;
        boolean var8 = false;
        boolean var9 = false;

        for (int var10 = var6; var10 >= 0 && var10 < par1Str.length() && var5 < (float)par2; var10 += var7)
        {
            char var11 = par1Str.charAt(var10);
            float var12 = this.getCharWidth(var11);

            if (var8)
            {
                var8 = false;

                if (var11 != 108 && var11 != 76)
                {
                    if (var11 == 114 || var11 == 82)
                    {
                        var9 = false;
                    }
                }
                else
                {
                    var9 = true;
                }
            }
            else if (var12 < 0.0F)
            {
                var8 = true;
            }
            else
            {
                var5 += var12;

                if (var9)
                {
                    ++var5;
                }
            }

            if (var5 > (float)par2)
            {
                break;
            }

            else
            {
                var4.append(var11);
            }
        }

        return var4.toString();
    }
	
}