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im.bci.jnuit.lwjgl.LwjglNuitFont Maven / Gradle / Ivy
/*
The MIT License (MIT)
Copyright (c) 2013 devnewton
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
package im.bci.jnuit.lwjgl;
import im.bci.jnuit.NuitFont;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
import java.awt.image.DataBufferByte;
import java.awt.image.DataBufferInt;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.IntBuffer;
import java.util.HashMap;
import java.util.Map;
import java.awt.GraphicsEnvironment;
import org.lwjgl.BufferUtils;
import org.lwjgl.opengl.GL11;
import org.lwjgl.util.glu.GLU;
/**
* A TrueType font implementation originally for Slick, edited for Bobjob's
* Engine
*
* @original author James Chambers (Jimmy)
* @original author Jeremy Adams (elias4444)
* @original author Kevin Glass (kevglass)
* @original author Peter Korzuszek (genail)
*
* @new version edited by David Aaron Muhar (bobjob)
*/
public class LwjglNuitFont implements NuitFont {
public enum Align {
CENTER, LEFT, RIGHT
}
/**
* Array that holds necessary information about the font characters
*/
private IntObject[] charArray = new IntObject[256];
/**
* Map of user defined font characters (Character <-> IntObject)
*/
private Map customChars = new HashMap();
/**
* Boolean flag on whether AntiAliasing is enabled or not
*/
private boolean antiAlias;
/**
* Font's size
*/
private int fontSize = 0;
/**
* Font's height
*/
private int fontHeight = 0;
/**
* ITexture used to cache the font 0-255 characters
*/
private int fontTextureID;
private boolean deleteTextureOnClose = true;
/**
* Default font texture width
*/
private int textureWidth = 512;
/**
* Default font texture height
*/
private int textureHeight = 512;
/**
* A reference to Java's AWT Font that we create our font texture from
*/
private Font font;
/**
* The font metrics for our Java AWT font
*/
private FontMetrics fontMetrics;
private int correctL = 9, correctR = 8;
private final Map specialCharacters;
public void drawString(String msg) {
drawString(0, 0, msg, 1, 1);
}
public void drawString(String msg, Align format) {
drawString(0, 0, msg, 1, 1, format);
}
private BufferedImage getCharacterImage(int charwidth, int charheight, char ch) {
if (specialCharacters.containsKey(ch)) {
return specialCharacters.get(ch);
}
BufferedImage fontImage;
fontImage = new BufferedImage(charwidth, charheight, BufferedImage.TYPE_INT_ARGB);
Graphics2D gt = (Graphics2D) fontImage.getGraphics();
if (antiAlias == true) {
gt.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
}
gt.setFont(font);
final int charx = 3;
final int chary = 1 + fontMetrics.getAscent();
final String str = String.valueOf(ch);
gt.setColor(Color.BLACK);
gt.drawString(str, charx - 1, chary);
gt.drawString(str, charx + 1, chary);
gt.drawString(str, charx, chary - 1);
gt.drawString(str, charx, chary + 1);
gt.setColor(Color.WHITE);
gt.drawString(str, charx, chary);
return fontImage;
}
private class IntObject {
/**
* Character's width
*/
public int width;
/**
* Character's height
*/
public int height;
/**
* Character's stored x position
*/
public int storedX;
/**
* Character's stored y position
*/
public int storedY;
}
public LwjglNuitFont(Font font, boolean antiAlias, char[] additionalChars, Map specialCharacters) {
this.font = font;
this.fontSize = font.getSize() + 3;
this.antiAlias = antiAlias;
this.specialCharacters = specialCharacters;
createSet(additionalChars);
fontHeight -= 1;
if (fontHeight <= 0) {
fontHeight = 1;
}
}
public void setCorrection(boolean on) {
if (on) {
correctL = 2;
correctR = 1;
} else {
correctL = 0;
correctR = 0;
}
}
private BufferedImage getFontImage(char ch) {
// Create a temporary image to extract the character's size
BufferedImage tempfontImage = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = (Graphics2D) tempfontImage.getGraphics();
if (antiAlias == true) {
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
}
g.setFont(font);
fontMetrics = g.getFontMetrics();
int charwidth = fontMetrics.charWidth(ch) + 8;
if (charwidth <= 0) {
charwidth = 7;
}
int charheight = fontMetrics.getHeight() + 3;
if (charheight <= 0) {
charheight = fontSize;
}
return getCharacterImage(charwidth, charheight, ch);
}
private void createSet(char[] customCharsArray) {
// If there are custom chars then I expand the font texture twice
if (customCharsArray != null && customCharsArray.length > 0) {
textureWidth *= 2;
}
// In any case this should be done in other way. Texture with size
// 512x512
// can maintain only 256 characters with resolution of 32x32. The
// texture
// size should be calculated dynamicaly by looking at character sizes.
BufferedImage imgTemp = new BufferedImage(textureWidth, textureHeight, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = (Graphics2D) imgTemp.getGraphics();
g.setColor(new Color(0, 0, 0, 1));
g.fillRect(0, 0, textureWidth, textureHeight);
int rowHeight = 0;
int positionX = 0;
int positionY = 0;
int customCharsLength = (customCharsArray != null) ? customCharsArray.length : 0;
for (int i = 0; i < 256 + customCharsLength; i++) {
// get 0-255 characters and then custom characters
char ch = (i < 256) ? (char) i : customCharsArray[i - 256];
BufferedImage fontImage = getFontImage(ch);
IntObject newIntObject = new IntObject();
newIntObject.width = fontImage.getWidth();
newIntObject.height = fontImage.getHeight();
if (positionX + newIntObject.width >= textureWidth) {
positionX = 0;
positionY += rowHeight;
rowHeight = 0;
}
newIntObject.storedX = positionX;
newIntObject.storedY = positionY;
if (newIntObject.height > fontHeight) {
fontHeight = newIntObject.height;
}
if (newIntObject.height > rowHeight) {
rowHeight = newIntObject.height;
}
// Draw it here
g.drawImage(fontImage, positionX, positionY, null);
positionX += newIntObject.width;
if (i < 256) { // standard characters
charArray[i] = newIntObject;
} else { // custom characters
customChars.put(new Character(ch), newIntObject);
}
fontImage = null;
}
fontTextureID = loadImage(imgTemp);
}
private void drawQuad(float drawX, float drawY, float drawX2, float drawY2, float srcX, float srcY, float srcX2, float srcY2) {
float DrawWidth = drawX2 - drawX;
float DrawHeight = drawY2 - drawY;
float TextureSrcX = srcX / textureWidth;
float TextureSrcY = srcY / textureHeight;
float SrcWidth = srcX2 - srcX;
float SrcHeight = srcY2 - srcY;
float RenderWidth = (SrcWidth / textureWidth);
float RenderHeight = (SrcHeight / textureHeight);
GL11.glTexCoord2f(TextureSrcX, TextureSrcY);
GL11.glVertex2f(drawX, drawY);
GL11.glTexCoord2f(TextureSrcX, TextureSrcY + RenderHeight);
GL11.glVertex2f(drawX, drawY + DrawHeight);
GL11.glTexCoord2f(TextureSrcX + RenderWidth, TextureSrcY + RenderHeight);
GL11.glVertex2f(drawX + DrawWidth, drawY + DrawHeight);
GL11.glTexCoord2f(TextureSrcX + RenderWidth, TextureSrcY);
GL11.glVertex2f(drawX + DrawWidth, drawY);
}
@Override
public int getWidth(String whatchars) {
int totalwidth = 0;
IntObject intObject = null;
int currentChar = 0;
for (int i = 0; i < whatchars.length(); i++) {
currentChar = whatchars.charAt(i);
if (currentChar < 256) {
intObject = charArray[currentChar];
} else {
intObject = customChars.get(new Character((char) currentChar));
}
if (intObject != null) {
totalwidth += intObject.width;
}
}
return totalwidth;
}
public int getHeight() {
return fontHeight;
}
@Override
public int getHeight(String HeightString) {
return fontHeight;
}
public int getLineHeight() {
return fontHeight;
}
private void drawString(float x, float y, String whatchars, float scaleX, float scaleY) {
drawString(x, y, whatchars, 0, whatchars.length() - 1, scaleX, scaleY, Align.LEFT);
}
public void drawString(float x, float y, String whatchars, float scaleX, float scaleY, Align format) {
drawString(x, y, whatchars, 0, whatchars.length() - 1, scaleX, scaleY, format);
}
private void drawString(float x, float y, String whatchars, int startIndex, int endIndex, float scaleX, float scaleY, Align format) {
IntObject intObject = null;
int charCurrent;
int totalwidth = 0;
int i = startIndex, d, c;
float startY = 0;
switch (format) {
case RIGHT: {
d = -1;
c = correctR;
while (i < endIndex) {
if (whatchars.charAt(i) == '\n') {
startY -= fontHeight;
}
i++;
}
break;
}
case CENTER: {
for (int l = startIndex; l <= endIndex; l++) {
charCurrent = whatchars.charAt(l);
if (charCurrent == '\n') {
break;
}
if (charCurrent < 256) {
intObject = charArray[charCurrent];
} else {
intObject = customChars.get(new Character((char) charCurrent));
}
totalwidth += intObject.width - correctL;
}
totalwidth /= -2;
}
case LEFT:
default:
d = 1;
c = correctL;
break;
}
GL11.glBindTexture(GL11.GL_TEXTURE_2D, fontTextureID);
GL11.glBegin(GL11.GL_QUADS);
while (i >= startIndex && i <= endIndex) {
charCurrent = whatchars.charAt(i);
if (charCurrent < 256) {
intObject = charArray[charCurrent];
} else {
intObject = customChars.get(new Character((char) charCurrent));
}
if (intObject != null) {
if (d < 0) {
totalwidth += (intObject.width - c) * d;
}
if (charCurrent == '\n') {
startY -= fontHeight * d;
totalwidth = 0;
if (format == Align.CENTER) {
for (int l = i + 1; l <= endIndex; l++) {
charCurrent = whatchars.charAt(l);
if (charCurrent == '\n') {
break;
}
if (charCurrent < 256) {
intObject = charArray[charCurrent];
} else {
intObject = customChars.get(new Character((char) charCurrent));
}
totalwidth += intObject.width - correctL;
}
totalwidth /= -2;
}
// if center get next lines total width/2;
} else {
drawQuad((totalwidth + intObject.width) * scaleX + x, startY * scaleY + y, totalwidth * scaleX + x, (startY + intObject.height) * scaleY + y, intObject.storedX + intObject.width, intObject.storedY + intObject.height, intObject.storedX, intObject.storedY);
if (d > 0) {
totalwidth += (intObject.width - c) * d;
}
}
i += d;
}
}
GL11.glEnd();
}
public static int loadImage(BufferedImage bufferedImage) {
short width = (short) bufferedImage.getWidth();
short height = (short) bufferedImage.getHeight();
// textureLoader.bpp = bufferedImage.getColorModel().hasAlpha() ?
// (byte)32 : (byte)24;
int bpp = (byte) bufferedImage.getColorModel().getPixelSize();
ByteBuffer byteBuffer;
DataBuffer db = bufferedImage.getData().getDataBuffer();
if (db instanceof DataBufferInt) {
int intI[] = ((DataBufferInt) (bufferedImage.getData().getDataBuffer())).getData();
byte newI[] = new byte[intI.length * 4];
for (int i = 0; i < intI.length; i++) {
byte b[] = intToByteArray(intI[i]);
int newIndex = i * 4;
newI[newIndex] = b[1];
newI[newIndex + 1] = b[2];
newI[newIndex + 2] = b[3];
newI[newIndex + 3] = b[0];
}
byteBuffer = ByteBuffer.allocateDirect(width * height * (bpp / 8)).order(ByteOrder.nativeOrder()).put(newI);
} else {
byteBuffer = ByteBuffer.allocateDirect(width * height * (bpp / 8)).order(ByteOrder.nativeOrder()).put(((DataBufferByte) (bufferedImage.getData().getDataBuffer())).getData());
}
byteBuffer.flip();
int internalFormat = GL11.GL_RGBA8, format = GL11.GL_RGBA;
IntBuffer textureId = BufferUtils.createIntBuffer(1);
GL11.glGenTextures(textureId);
GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureId.get(0));
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_S, GL11.GL_CLAMP);
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL11.GL_CLAMP);
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_LINEAR);
GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_LINEAR);
GL11.glTexEnvf(GL11.GL_TEXTURE_ENV, GL11.GL_TEXTURE_ENV_MODE, GL11.GL_MODULATE);
GLU.gluBuild2DMipmaps(GL11.GL_TEXTURE_2D, internalFormat, width, height, format, GL11.GL_UNSIGNED_BYTE, byteBuffer);
return textureId.get(0);
}
public static boolean isSupported(String fontname) {
Font font[] = getFonts();
for (int i = font.length - 1; i >= 0; i--) {
if (font[i].getName().equalsIgnoreCase(fontname)) {
return true;
}
}
return false;
}
public static Font[] getFonts() {
return GraphicsEnvironment.getLocalGraphicsEnvironment().getAllFonts();
}
public static byte[] intToByteArray(int value) {
return new byte[]{(byte) (value >>> 24), (byte) (value >>> 16), (byte) (value >>> 8), (byte) value};
}
public int getFontTextureID() {
return fontTextureID;
}
public void setFontTextureID(Integer fontTextureID) {
this.fontTextureID = fontTextureID;
}
public void deleteFontTexture() {
IntBuffer scratch = BufferUtils.createIntBuffer(1);
scratch.put(0, fontTextureID);
GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
GL11.glDeleteTextures(scratch);
}
}
