Java 类org.lwjgl.glfw.GLFWKeyCallbackI 实例源码

KeyboardHandler(Window window)
{
    this.window = window;

    GLFWKeyCallbackI keyCallback = null;

    try
    {
        keyCallback = GLFW.glfwSetKeyCallback(this.window.handle(),
                (handle, key, scancode, action, mods) ->
                {
                    ButtonInput input = this.getButton(key);
                    if (input != null)
                    {
                        if (action == GLFW.GLFW_RELEASE)
                        {
                            input.release();
                        }
                        else if (action == GLFW.GLFW_PRESS)
                        {
                            input.press();
                        }
                        else
                        {
                            //Ignore repeating input...
                        }
                    }
                });

        if (keyCallback != null)
        {
            throw new IllegalStateException("another keyboard handler is already registered!");
        }
    }
    catch (Exception e)
    {
        //Reset to previous state
        GLFW.glfwSetKeyCallback(this.window.handle(), keyCallback);

        throw e;
    }
}