feat: application manager and EventDispatcher

1 files changed, 152 insertions, 5 deletions

diff --git a/src/core/window.cpp b/src/core/window.cpp
index 3a6ba2c..ab5b977 100644
--- a/src/core/window.cpp
+++ b/src/core/window.cpp
@@ -1,5 +1,6 @@
 #include "window.h"
 #include <cstdint>
+#include <iostream>
 
 namespace Donut
 {
@@ -7,21 +8,57 @@ namespace Donut
     static uint32_t s_glfw_window_count = 0;
 
     Window::Window(const std::string& title, int width, int height)
-        : m_title(title), m_width(width), m_height(height)
+        : m_title(title), m_width(width), 
+          m_height(height), m_is_closed(false)
+    {
+        init();
+    }
+
+    Window::~Window()
+    {
+        shutdown();
+    }
+
+    void Window::init()
     {
         if (!s_glfw_initialized)
         {
-            glfwInit();
+            int success = glfwInit();
+            if (!success)
+            {
+                std::cout << "Could not initialize GLFW!" << std::endl;
+                return;
+            }
+
             s_glfw_initialized = true;
         }
 
-        m_window = glfwCreateWindow(width, height, title.c_str(), nullptr, nullptr);
+        m_window = glfwCreateWindow(m_width, m_height, m_title.c_str(), nullptr, nullptr);
+        if (!m_window)
+        {
+            std::cout << "Could not create GLFW window!" << std::endl;
+            glfwTerminate();
+            return;
+        }
+
         glfwMakeContextCurrent(m_window);
+        glfwSetWindowUserPointer(m_window, this);
+
+        glfwSetErrorCallback(glfw_error_callback);
+        glfwSetWindowCloseCallback(m_window, glfw_window_close_callback);
+        glfwSetWindowSizeCallback(m_window, glfw_window_size_callback);
+        glfwSetWindowFocusCallback(m_window, glfw_window_focus_callback);
+        glfwSetWindowPosCallback(m_window, glfw_window_pos_callback);
+        glfwSetKeyCallback(m_window, glfw_key_callback);
+        glfwSetCharCallback(m_window, glfw_char_callback);
+        glfwSetMouseButtonCallback(m_window, glfw_mouse_button_callback);
+        glfwSetScrollCallback(m_window, glfw_mouse_scroll_callback);
+        glfwSetCursorPosCallback(m_window, glfw_cursor_pos_callback);
 
         s_glfw_window_count++;
     }
 
-    Window::~Window()
+    void Window::shutdown()
     {
         glfwDestroyWindow(m_window);
         s_glfw_window_count--;
@@ -41,6 +78,116 @@ namespace Donut
 
     bool Window::should_close() const
     {
-        return glfwWindowShouldClose(m_window);
+        return glfwWindowShouldClose(m_window) || m_is_closed;
+    }
+
+    void Window::glfw_error_callback(int error, const char* description)
+    {
+        std::cout << "GLFW Error (" << error << "): " << description << std::endl;
+    }
+
+    void Window::glfw_window_close_callback(GLFWwindow* window)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        WindowCloseEvent event;
+        win->m_event_handler.on_event(event);
+    }
+
+    void Window::glfw_window_size_callback(GLFWwindow* window, int width, int height)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        win->m_width = width;
+        win->m_height = height;
+        
+        WindowResizeEvent event(width, height);
+        win->m_event_handler.on_event(event);
+    }
+
+    void Window::glfw_window_focus_callback(GLFWwindow* window, int focused)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        
+        if (focused)
+        {
+            WindowFocusEvent event;
+            win->m_event_handler.on_event(event);
+        }
+        else
+        {
+            WindowLostFocusEvent event;
+            win->m_event_handler.on_event(event);
+        }
+    }
+
+    void Window::glfw_window_pos_callback(GLFWwindow* window, int xpos, int ypos)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        WindowMovedEvent event(xpos, ypos);
+        win->m_event_handler.on_event(event);
+    }
+
+    void Window::glfw_key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        
+        switch (action)
+        {
+            case GLFW_PRESS:
+            {
+                KeyPressedEvent event(key, false);
+                win->m_event_handler.on_event(event);
+            } break;
+            case GLFW_RELEASE:
+            {
+                KeyReleasedEvent event(key);
+                win->m_event_handler.on_event(event);
+            } break;
+            case GLFW_REPEAT:
+            {
+                KeyPressedEvent event(key, true);
+                win->m_event_handler.on_event(event);
+            } break;
+        }
+    }
+
+    void Window::glfw_char_callback(GLFWwindow* window, unsigned int keycode)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        KeyTypedEvent event(keycode);
+        win->m_event_handler.on_event(event);
+    }
+
+    void Window::glfw_mouse_button_callback(GLFWwindow* window, int button, int action, int mods)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        
+        switch (action)
+        {
+            case GLFW_PRESS:
+            {
+                MouseButtonPressedEvent event(button);
+                win->m_event_handler.on_event(event);
+            } break;
+            case GLFW_RELEASE:
+            {
+                MouseButtonReleasedEvent event(button);
+                win->m_event_handler.on_event(event);
+                break;
+            }
+        }
+    }
+
+    void Window::glfw_mouse_scroll_callback(GLFWwindow* window, double x_offset, double y_offset)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        MouseScrolledEvent event((float)x_offset, (float)y_offset);
+        win->m_event_handler.on_event(event);
+    }
+
+    void Window::glfw_cursor_pos_callback(GLFWwindow* window, double x_pos, double y_pos)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        MouseMovedEvent event((float)x_pos, (float)y_pos);
+        win->m_event_handler.on_event(event);
     }
 }