[add]: Application manager and EventDispatcher

1 files changed, 152 insertions, 5 deletions

diff --git a/src/Core/Window.cpp b/src/Core/Window.cpp
index 8f1c6ea..13025cf 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_GLFWWindowCount = 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_IsClosed(false)
+    {
+        Init();
+    }
+
+    Window::~Window()
+    {
+        Shutdown();
+    }
+
+    void Window::Init()
     {
         if (!s_GLFWInitialized)
         {
-            glfwInit();
+            int success = glfwInit();
+            if (!success)
+            {
+                std::cout << "Could not initialize GLFW!" << std::endl;
+                return;
+            }
+
             s_GLFWInitialized = 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(GLFWErrorCallback);
+        glfwSetWindowCloseCallback(m_Window, GLFWWindowCloseCallback);
+        glfwSetWindowSizeCallback(m_Window, GLFWWindowSizeCallback);
+        glfwSetWindowFocusCallback(m_Window, GLFWWindowFocusCallback);
+        glfwSetWindowPosCallback(m_Window, GLFWWindowPosCallback);
+        glfwSetKeyCallback(m_Window, GLFWKeyCallback);
+        glfwSetCharCallback(m_Window, GLFWCharCallback);
+        glfwSetMouseButtonCallback(m_Window, GLFWMouseButtonCallback);
+        glfwSetScrollCallback(m_Window, GLFWMouseScrollCallback);
+        glfwSetCursorPosCallback(m_Window, GLFWCursorPosCallback);
 
         s_GLFWWindowCount++;
     }
 
-    Window::~Window()
+    void Window::Shutdown()
     {
         glfwDestroyWindow(m_Window);
         s_GLFWWindowCount--;
@@ -41,6 +78,116 @@ namespace Donut
 
     bool Window::ShouldClose() const
     {
-        return glfwWindowShouldClose(m_Window);
+        return glfwWindowShouldClose(m_Window) || m_IsClosed;
+    }
+
+    void Window::GLFWErrorCallback(int error, const char* description)
+    {
+        std::cout << "GLFW Error (" << error << "): " << description << std::endl;
+    }
+
+    void Window::GLFWWindowCloseCallback(GLFWwindow* window)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        WindowCloseEvent event;
+        win->m_EventHandler.OnEvent(event);
+    }
+
+    void Window::GLFWWindowSizeCallback(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_EventHandler.OnEvent(event);
+    }
+
+    void Window::GLFWWindowFocusCallback(GLFWwindow* window, int focused)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        
+        if (focused)
+        {
+            WindowFocusEvent event;
+            win->m_EventHandler.OnEvent(event);
+        }
+        else
+        {
+            WindowLostFocusEvent event;
+            win->m_EventHandler.OnEvent(event);
+        }
+    }
+
+    void Window::GLFWWindowPosCallback(GLFWwindow* window, int xpos, int ypos)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        WindowMovedEvent event(xpos, ypos);
+        win->m_EventHandler.OnEvent(event);
+    }
+
+    void Window::GLFWKeyCallback(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_EventHandler.OnEvent(event);
+            } break;
+            case GLFW_RELEASE:
+            {
+                KeyReleasedEvent event(key);
+                win->m_EventHandler.OnEvent(event);
+            } break;
+            case GLFW_REPEAT:
+            {
+                KeyPressedEvent event(key, true);
+                win->m_EventHandler.OnEvent(event);
+            } break;
+        }
+    }
+
+    void Window::GLFWCharCallback(GLFWwindow* window, unsigned int keycode)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        KeyTypedEvent event(keycode);
+        win->m_EventHandler.OnEvent(event);
+    }
+
+    void Window::GLFWMouseButtonCallback(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_EventHandler.OnEvent(event);
+            } break;
+            case GLFW_RELEASE:
+            {
+                MouseButtonReleasedEvent event(button);
+                win->m_EventHandler.OnEvent(event);
+                break;
+            }
+        }
+    }
+
+    void Window::GLFWMouseScrollCallback(GLFWwindow* window, double xOffset, double yOffset)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        MouseScrolledEvent event((float)xOffset, (float)yOffset);
+        win->m_EventHandler.OnEvent(event);
+    }
+
+    void Window::GLFWCursorPosCallback(GLFWwindow* window, double xPos, double yPos)
+    {
+        Window* win = static_cast<Window*>(glfwGetWindowUserPointer(window));
+        MouseMovedEvent event((float)xPos, (float)yPos);
+        win->m_EventHandler.OnEvent(event);
     }
 }
\ No newline at end of file