Engine.rendering.Window.java Source code

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Here is the source code for Engine.rendering.Window.java

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/*
 * Copyright (C) 2014 Benny Bobaganoosh
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package Engine.rendering;

import Engine.core.Input;
import Engine.core.Vector2f;
import static org.lwjgl.glfw.GLFW.*;

import static org.lwjgl.opengl.GL11.*;
import static org.lwjgl.system.MemoryUtil.NULL;

import java.nio.IntBuffer;

import org.lwjgl.BufferUtils;
import org.lwjgl.glfw.GLFWFramebufferSizeCallback;
import org.lwjgl.glfw.GLFWVidMode;
//import org.lwjgl.glfw.GLFWWindowSizeCallback;
import org.lwjgl.opengl.GL;

public class Window {
    private static long window;
    private static String windowTitle;

    // When resize change the viewport
    private static final GLFWFramebufferSizeCallback FRAMEBUFFER_SIZE_CALLBACK = new GLFWFramebufferSizeCallback() {
        @Override
        public void invoke(long window, int width, int height) {
            glViewport(0, 0, width, height);
        }
    };

    /*
    private static final GLFWWindowSizeCallback WINDOW_SIZE_CALLBACK = new GLFWWindowSizeCallback(){
    @Override
    public void invoke(long window, int width, int height) {
    }
    };
    */

    public static void CreateWindow(int width, int height, String title) {

        // Initialise GLFW. Most GLFW functions will not work before doing this.
        if (!glfwInit()) {
            throw new IllegalStateException("Unable to initialize GLFW");
        }

        // Create the window
        window = glfwCreateWindow(width, height, title, NULL, NULL);
        if (window == NULL) {
            throw new RuntimeException("Failed to create the GLFW window");
        }

        windowTitle = title;

        // Get the resolution of the primary monitor
        GLFWVidMode vidmode = glfwGetVideoMode(glfwGetPrimaryMonitor());

        // Center our window
        glfwSetWindowPos(window, (vidmode.width() - width) / 2, (vidmode.height() - height) / 2);

        //glfwSetWindowSizeCallback(window, WINDOW_SIZE_CALLBACK);
        glfwSetFramebufferSizeCallback(window, FRAMEBUFFER_SIZE_CALLBACK);

        // Make the OpenGL context current
        glfwMakeContextCurrent(window);

        // Make the window visible
        glfwShowWindow(window);

        GL.createCapabilities();

        glViewport(0, 0, width, height); //NEW
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        glOrtho(0, width, 0, height, -1, 1);

        glfwSetKeyCallback(window, Input.GetKeyboardCallback());
        glfwSetMouseButtonCallback(window, Input.GetMouseCallback());
        glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
    }

    public static long getCurrentWindow() {
        return window;
    }

    public static void Clear() {
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    }

    public static void Render() {
        glfwSwapBuffers(window);

    }

    public static void Dispose() {
        //glfwFreeCallbacks(window);
        glfwDestroyWindow(window);
        glfwTerminate();
    }

    public static boolean IsCloseRequested() {
        return glfwWindowShouldClose(window);
    }

    public static int GetWidth() {
        IntBuffer width = BufferUtils.createIntBuffer(1);
        IntBuffer height = BufferUtils.createIntBuffer(1);
        ;
        glfwGetWindowSize(window, width, height);
        return width.get(0);
    }

    public static int GetHeight() {
        IntBuffer width = BufferUtils.createIntBuffer(1);
        IntBuffer height = BufferUtils.createIntBuffer(1);
        ;
        glfwGetWindowSize(window, width, height);
        return height.get(0);
    }

    public static String GetTitle() {
        return windowTitle;
    }

    public static void SetTitle(String title) {
        glfwSetWindowTitle(window, title);
    }

    public Vector2f GetCenter() {
        return new Vector2f(GetWidth() / 2, GetHeight() / 2);
    }
}