Method initWindow

imgui-app/src/main/java/imgui/app/WindowGlfw.java:84–130

Method to create and initialize GLFW window. @param config configuration object with basic window information

(final Configuration config)

     * @param config configuration object with basic window information
     */
    protected void initWindow(final Configuration config) {
        GLFWErrorCallback.createPrint(System.err).set();

        if (!glfwInit()) {
            throw new IllegalStateException("Unable to initialize GLFW");
        }

        decideGlGlslVersions();

        glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
        handle = glfwCreateWindow(config.getWidth(), config.getHeight(), config.getTitle(), MemoryUtil.NULL, MemoryUtil.NULL);

        if (handle == MemoryUtil.NULL) {
            throw new RuntimeException("Failed to create the GLFW window");
        }

        try (MemoryStack stack = MemoryStack.stackPush()) {
            final IntBuffer pWidth = stack.mallocInt(1); // int*
            final IntBuffer pHeight = stack.mallocInt(1); // int*

            glfwGetWindowSize(handle, pWidth, pHeight);
            final GLFWVidMode vidmode = Objects.requireNonNull(glfwGetVideoMode(glfwGetPrimaryMonitor()));
            glfwSetWindowPos(handle, (vidmode.width() - pWidth.get(0)) / 2, (vidmode.height() - pHeight.get(0)) / 2);
        }

        glfwMakeContextCurrent(handle);

        GL.createCapabilities();

        glfwSwapInterval(GLFW_TRUE);

        if (config.isFullScreen()) {
            glfwMaximizeWindow(handle);
        } else {
            glfwShowWindow(handle);
        }

        clearBuffer();
        renderBuffer();

        glfwSetWindowSizeCallback(handle, new GLFWWindowSizeCallback() {
            @Override
            public void invoke(final long window, final int width, final int height) {
                runFrame();
            }
        });
    }

    private void decideGlGlslVersions() {
        final boolean isMac = System.getProperty("os.name").toLowerCase().contains("mac");