From 5f53a3037a029021fc4e9fdf1447df08dd83194a Mon Sep 17 00:00:00 2001
From: Rick van Vonderen <0945444@hr.nl>
Date: Wed, 18 Dec 2019 16:21:57 +0100
Subject: [PATCH] Add and implement mouse Events

---
 inferno/src/inferno/event/event.h      |  13 +++
 inferno/src/inferno/event/mouseevent.h | 105 +++++++++++++++++++++++++
 inferno/src/inferno/window.cpp         |  36 +++++++--
 inferno/src/inferno/window.h           |   2 +-
 4 files changed, 150 insertions(+), 6 deletions(-)
 create mode 100644 inferno/src/inferno/event/mouseevent.h

diff --git a/inferno/src/inferno/event/event.h b/inferno/src/inferno/event/event.h
index 7168ed6..d4303f2 100644
--- a/inferno/src/inferno/event/event.h
+++ b/inferno/src/inferno/event/event.h
@@ -9,13 +9,26 @@ namespace Inferno {
 
 	enum class EventType {
 		None = 0,
+
 		WindowClose,
 		WindowResize,
+
+		MouseButtonPress,
+		MouseButtonRelease,
+		MousePosition,
+		MouseScroll,
 	};
 
 	enum EventCategory {
 		None = 0,
 		ApplicationEventCategory = BIT(0),
+
+		InputEventCategory       = BIT(1),
+
+		KeyEventCategory         = BIT(2),
+
+		MouseEventCategory       = BIT(3),
+		MouseButtonEventCategory = BIT(4),
 	};
 
 	class Event {
diff --git a/inferno/src/inferno/event/mouseevent.h b/inferno/src/inferno/event/mouseevent.h
new file mode 100644
index 0000000..31668a5
--- /dev/null
+++ b/inferno/src/inferno/event/mouseevent.h
@@ -0,0 +1,105 @@
+#ifndef MOUSEEVENT_H
+#define MOUSEEVENT_H
+
+#include "inferno/event/event.h"
+
+namespace Inferno {
+
+	class MouseButtonEvent : public Event {
+	public:
+		MouseButtonEvent(int button) :
+			m_button(button) {}
+
+// -----------------------------------------
+
+		inline int getButton() const { return m_button; }
+
+		EVENT_CLASS_CATEGORY(InputEventCategory | MouseEventCategory | MouseButtonEventCategory)
+
+	protected:
+		int m_button;
+	};
+
+	class MouseButtonPressEvent : public MouseButtonEvent {
+	public:
+		MouseButtonPressEvent(int button) :
+			MouseButtonEvent(button) {}
+
+		virtual std::string toString() const override
+		{
+			std::stringstream ss;
+			ss << "MouseButtonPressed: " << m_button;
+			return ss.str();
+		}
+
+		EVENT_CLASS_TYPE(MouseButtonPress)
+	};
+
+	class MouseButtonReleaseEvent : public MouseButtonEvent {
+	public:
+		MouseButtonReleaseEvent(int button) :
+			MouseButtonEvent(button) {}
+
+		virtual std::string toString() const override
+		{
+			std::stringstream ss;
+			ss << "MouseButtonReleased: " << m_button;
+			return ss.str();
+		}
+
+		EVENT_CLASS_TYPE(MouseButtonRelease)
+	};
+
+	class MousePositionEvent : public Event {
+	public:
+		MousePositionEvent(float xPos, float yPos) :
+			m_xPos(xPos), m_yPos(yPos) {}
+
+		virtual std::string toString() const override
+		{
+			std::stringstream ss;
+			ss << "MousePosition: " << m_xPos << "x" << m_yPos;
+			return ss.str();
+		}
+
+// -----------------------------------------
+
+		inline float getXPos() const { return m_xPos; }
+		inline float getYPos() const { return m_yPos; }
+
+		EVENT_CLASS_TYPE(MousePosition)
+		EVENT_CLASS_CATEGORY(InputEventCategory | MouseEventCategory)
+
+	private:
+		float m_xPos;
+		float m_yPos;
+	};
+
+	class MouseScrollEvent : public Event {
+	public:
+		MouseScrollEvent(float xOffset, float yOffset) :
+			m_xOffset(xOffset), m_yOffset(yOffset) {}
+
+		virtual std::string toString() const override
+		{
+			std::stringstream ss;
+			ss << "MouseScroll: " << m_xOffset << ":" << m_yOffset;
+			return ss.str();
+		}
+
+// -----------------------------------------
+
+		inline float getXOffset() const { return m_xOffset; }
+		inline float getYOffset() const { return m_yOffset; }
+
+		EVENT_CLASS_TYPE(MouseScroll)
+		EVENT_CLASS_CATEGORY(InputEventCategory | MouseEventCategory)
+
+	private:
+		float m_xOffset;
+		float m_yOffset;
+	};
+
+}
+
+#endif // MOUSEEVENT_H
diff --git a/inferno/src/inferno/window.cpp b/inferno/src/inferno/window.cpp
index bd5626e..789d27d 100644
--- a/inferno/src/inferno/window.cpp
+++ b/inferno/src/inferno/window.cpp
@@ -3,6 +3,7 @@
 
 #include "inferno/core.h"
 #include "inferno/event/applicationevent.h"
+#include "inferno/event/mouseevent.h"
 #include "inferno/log.h"
 #include "inferno/settings.h"
 #include "inferno/window.h"
@@ -91,16 +92,41 @@ namespace Inferno {
 		});
 
 		// Keyboard callback
-		// glfwSetKeyCallback
+		// glfwSetKeyCallback(GLFWwindow* window, int key, int scanCode, int action, int mods);
+
+		// Mouse button callback
+		glfwSetMouseButtonCallback(m_window, [](GLFWwindow* window, int button, int action, int mods) {
+			Window &w = *(Window*)glfwGetWindowUserPointer(window);
+
+			switch (action) {
+				case GLFW_PRESS: {
+					MouseButtonPressEvent event(button);
+					w.m_eventCallback(event);
+					break;
+				}
+				case GLFW_RELEASE: {
+					MouseButtonReleaseEvent event(button);
+					w.m_eventCallback(event);
+					break;
+				}
+			}
+		});
 
 		// Mouse position callback
-		// glfwSetCursorPosCallback
+		glfwSetCursorPosCallback(m_window, [](GLFWwindow* window, double xPos, double yPos) {
+			Window &w = *(Window*)glfwGetWindowUserPointer(window);
 
-		// Mouse button callback
-		// glfwSetMouseButtonCallback
+			MousePositionEvent event(xPos, yPos);
+			w.m_eventCallback(event);
+		});
 
 		// Mouse scroll callback
-		// glfwSetScrollCallback
+		glfwSetScrollCallback(m_window, [](GLFWwindow* window, double xOffset, double yOffset) {
+			Window &w = *(Window*)glfwGetWindowUserPointer(window);
+
+			MouseScrollEvent event(xOffset, yOffset);
+			w.m_eventCallback(event);
+		});
 
 		glViewport(0, 0, width, height);
 
diff --git a/inferno/src/inferno/window.h b/inferno/src/inferno/window.h
index 446934e..8ff5cde 100644
--- a/inferno/src/inferno/window.h
+++ b/inferno/src/inferno/window.h
@@ -3,7 +3,7 @@
 
 #include <functional> // std::function
 
-class GLFWwindow;
+struct GLFWwindow;
 
 namespace Inferno {