Java tutorial
/* * This file is part of Spoutcraft (http://wiki.getspout.org/). * * Spoutcraft is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Spoutcraft is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.getspout.spout.gui; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.IOException; import org.lwjgl.opengl.GL11; import net.minecraft.src.Tessellator; import org.getspout.spout.io.CustomTextureManager; import org.getspout.spout.packet.PacketUtil; public class GenericTexture extends GenericWidget implements Texture { protected String Url = null; org.newdawn.slick.opengl.Texture texture = null; public GenericTexture() { } public GenericTexture(String Url) { this.Url = Url; } @Override public WidgetType getType() { return WidgetType.Texture; } @Override public int getNumBytes() { return super.getNumBytes() + PacketUtil.getNumBytes(getUrl()); } public int getVersion() { return super.getVersion() + 0; } @Override public void readData(DataInputStream input) throws IOException { super.readData(input); this.setUrl(PacketUtil.readString(input)); } @Override public void writeData(DataOutputStream output) throws IOException { super.writeData(output); PacketUtil.writeString(output, getUrl()); } @Override public void render() { String path = CustomTextureManager.getTextureFromUrl(getUrl()); if (path == null) { return; } if (texture == null) { texture = CustomTextureManager.getTextureFromPath(path); if (texture == null) { return; } } GL11.glDisable(GL11.GL_DEPTH_TEST); GL11.glDepthMask(false); GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F); GL11.glTranslatef((float) getScreenX(), (float) getScreenY(), 0); //moves texture into place GL11.glBindTexture(GL11.GL_TEXTURE_2D, texture.getTextureID()); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST); Tessellator tessellator = Tessellator.instance; tessellator.startDrawingQuads(); tessellator.addVertexWithUV(0.0D, getHeight(), -90, 0.0D, 0.0D); //draw corners tessellator.addVertexWithUV(getWidth(), getHeight(), -90, texture.getWidth(), 0.0D); tessellator.addVertexWithUV(getWidth(), 0.0D, -90, texture.getWidth(), texture.getHeight()); tessellator.addVertexWithUV(0.0D, 0.0D, -90, 0.0D, texture.getHeight()); tessellator.draw(); GL11.glDepthMask(true); GL11.glEnable(GL11.GL_DEPTH_TEST); GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F); } @Override public String getUrl() { return Url; } @Override public Texture setUrl(String Url) { if (getUrl() != null) { texture = null; } this.Url = Url; if (getUrl() != null) { CustomTextureManager.downloadTexture(Url); } return this; } }