GlfwRenderWindow.h

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#pragma once
 
#include <Platform.h>
#include <ImWindow.h>
 
#include "RenderWindow.h"
 
struct GLFWwindow;
namespace dyno {
 
    class Camera;
    class Node;
    struct Picture;
 
    enum ButtonState
    {
        GLFW_DOWN = 0,
        GLFW_UP
    };
 
    class GlfwRenderWindow : public RenderWindow
    {
    public:
        GlfwRenderWindow(int argc = 0, char **argv = NULL);
        ~GlfwRenderWindow();
 
        void initialize(int width, int height) override;
 
        void mainLoop() override;
 
        const std::string& name() const;
 
        void setWindowTitle(const std::string& title);
 
        void setCursorPos(double x, double y);
        double getCursorPosX();
        double getCursorPosY();
        
        void setButtonType(uint button) { mButtonType = button; }
        void setButtonMode(uint mode) { mButtonMode = mode; }
        void setButtonAction(uint action) { mButtonAction = action; }
        void setButtonState(ButtonState state) { mButtonState = state; }
 
        uint getButtonType() const { return mButtonType; }
        uint getButtonMode() { return mButtonMode; }
        uint getButtonAction() const { return mButtonAction; }
        ButtonState getButtonState() const { return mButtonState; }
 
        void turnOnVSync();
        void turnOffVSync();
 
        void toggleAnimation();
 
        int getWidth();
        int getHeight();
 
        // ImGui extend function
        // 全局样式设定
        void initializeStyle();
 
        ImWindow* imWindow() { return &mImWindow; }
 
    protected:
        void initCallbacks();    //init default callbacks
 
        void drawScene(void);
 
        static void mouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
        static void keyboardCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
        static void reshapeCallback(GLFWwindow* window, int w, int h);
        static void cursorPosCallback(GLFWwindow* window, double x, double y);
        static void cursorEnterCallback(GLFWwindow* window, int entered);
        static void scrollCallback(GLFWwindow* window, double offsetX, double OffsetY);
 
        //save screenshot to file
        void onSaveScreen(const std::string& filename) override;  //save to file with given name
        
    private:
        //pointers to callback methods
        void(*mMouseButtonFunc)(GLFWwindow* window, int button, int action, int mods);
        void(*mKeyboardFunc)(GLFWwindow* window, int key, int scancode, int action, int mods);
        void(*mReshapeFunc)(GLFWwindow* window, int w, int h);
        void(*mCursorPosFunc)(GLFWwindow* window, double x, double y);
        void(*mCursorEnterFunc)(GLFWwindow* window, int entered);
        void(*mScrollFunc)(GLFWwindow* window, double offsetX, double OffsetY);
 
        GLFWwindow* mWindow = nullptr;
 
        //state of the mouse
        uint mButtonType;
        uint mButtonMode;
        uint mButtonAction;
        ButtonState mButtonState;
 
        int mPlaneSize = 4;
 
        double mCursorPosX;
        double mCursorPosY;
 
        bool mAnimationToggle = false;
 
        bool mBackgroundToggle = true;
        bool mBoundingboxToggle = false;
 
        double mCursorTempX = -1.0;
 
        std::string mWindowTitle;
 
    private:
        ImWindow mImWindow;
    };
 
}