Window.hpp

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#pragma once

#include "Util.hpp"

class Application;

class Window
{
    protected:
        Application*m_app;              
        GLFWwindow* m_window;           
        vec2        m_size;             
        vec2        m_cursor;           
        vec2        m_cursorDelta;      
        mat4        m_projection;       
        bool        m_cursorInit;       
        vector<bool>m_hasProjChanged;   
    public:
        mat4 const & getProjection() const { return m_projection; }
        vec2 const & getCursor() const { return m_cursor; }
        vec2 const & getCursorDelta() const { return m_cursorDelta; }
        vec2 const & getSize() const { return m_size; }
        bool isCursorInWindow() const { return m_cursor.x >= 0 && m_cursor.y >= 0 && m_cursor.x < m_size.x && m_cursor.y < m_size.y; }
        vec2 getClippedCursor() const { return vec2(glm::clamp(m_cursor.x, 0.0f, m_size.x), glm::clamp(m_cursor.y, 0.0f, m_size.y)); }

    protected:      
        friend void glfwOnWindowSizeChanged(GLFWwindow * window, int width, int height);
        friend void glfwOnCursorMove(GLFWwindow * window, double x, double y);
        friend void glfwOnKeyStateChanged(GLFWwindow * window, int key, int scancode, int action, int mods);

        void onWindowSizeChanged(bool initialization = false);
        void onKeyStateChanged(int key, bool pressed);

    public:
        Window(Application* app);
        ~Window();

        void swapBuffers();

        bool doEvents();
        
        bool keyDown(int key);
        bool mouseDown(int key);

        void update(double time, double timeDelta);

        void close();

        bool const hasProjChanged() const { return m_hasProjChanged[0]; }

        void updatePointerPosition(vec2 pos);
};