axmol/cocos/platform/desktop/CCGLViewImpl-desktop.h

/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2016 Chukong Technologies Inc.
Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

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#pragma once

#include "platform/CCGL.h" 
#include "base/CCRef.h"
#include "platform/CCCommon.h"
#include "platform/CCGLView.h"
#include "glfw3.h"

#if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
#ifndef GLFW_EXPOSE_NATIVE_WIN32
#define GLFW_EXPOSE_NATIVE_WIN32
#endif
#ifndef GLFW_EXPOSE_NATIVE_WGL
#define GLFW_EXPOSE_NATIVE_WGL
#endif
#include "glfw3native.h"
#endif /* (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32) */

#if (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)
#ifndef GLFW_EXPOSE_NATIVE_NSGL
#define GLFW_EXPOSE_NATIVE_NSGL
#endif
#ifndef GLFW_EXPOSE_NATIVE_COCOA
#define GLFW_EXPOSE_NATIVE_COCOA
#endif
#include "glfw3native.h"
#endif // #if (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)

NS_CC_BEGIN

class GLFWEventHandler;
class CC_DLL GLViewImpl : public GLView
{
public:
    static GLViewImpl* create(const std::string& viewName);
    static GLViewImpl* create(const std::string& viewName, bool resizable);
    static GLViewImpl* createWithRect(const std::string& viewName, Rect size, float frameZoomFactor = 1.0f, bool resizable = false);
    static GLViewImpl* createWithFullScreen(const std::string& viewName);
    static GLViewImpl* createWithFullScreen(const std::string& viewName, const GLFWvidmode &videoMode, GLFWmonitor *monitor);

    /*
     *frameZoomFactor for frame. This method is for debugging big resolution (e.g.new ipad) app on desktop.
     */

    //void resize(int width, int height);

    float getFrameZoomFactor() const override;
    //void centerWindow();

    virtual void setViewPortInPoints(float x , float y , float w , float h) override;
    virtual void setScissorInPoints(float x , float y , float w , float h) override;
    virtual Rect getScissorRect() const override;

    bool windowShouldClose() override;
    void pollEvents() override;
    GLFWwindow* getWindow() const { return _mainWindow; }

    bool isFullscreen() const;
    void setFullscreen();
    void setFullscreen(int monitorIndex);
    void setFullscreen(const GLFWvidmode &videoMode, GLFWmonitor *monitor);
    void setWindowed(int width, int height);

    int getMonitorCount() const;
    Size getMonitorSize() const;

    /* override functions */
    virtual bool isOpenGLReady() override;
    virtual void end() override;
    virtual void swapBuffers() override;
    virtual void setFrameSize(float width, float height) override;
    virtual void setIMEKeyboardState(bool bOpen) override;

#if CC_ICON_SET_SUPPORT
    virtual void setIcon(const std::string& filename) const override;
    virtual void setIcon(const std::vector<std::string>& filelist) const override;
    virtual void setDefaultIcon() const override;
#endif /* CC_ICON_SET_SUPPORT */

    /*
     * Set zoom factor for frame. This method is for debugging big resolution (e.g.new ipad) app on desktop.
     */
    void setFrameZoomFactor(float zoomFactor) override;
    /**
     * Hide or Show the mouse cursor if there is one.
     */
    virtual void setCursorVisible(bool isVisible) override;
    /** Retina support is disabled by default
     *  @note This method is only available on Mac.
     */
    void enableRetina(bool enabled);
    /** Check whether retina display is enabled. */
    bool isRetinaEnabled() const { return _isRetinaEnabled; };
    
    /** Get retina factor */
    int getRetinaFactor() const override { return _retinaFactor; }
    
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
    HWND getWin32Window() { return glfwGetWin32Window(_mainWindow); }
#endif /* (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32) */
    
#if (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)
    id getCocoaWindow() override { return glfwGetCocoaWindow(_mainWindow); }
    id getNSGLContext() override { return glfwGetNSGLContext(_mainWindow); } // stevetranby: added
#endif // #if (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)

protected:
    GLViewImpl(bool initglfw = true);
    virtual ~GLViewImpl();

    bool initWithRect(const std::string& viewName, Rect rect, float frameZoomFactor, bool resizable);
    bool initWithFullScreen(const std::string& viewName);
    bool initWithFullscreen(const std::string& viewname, const GLFWvidmode &videoMode, GLFWmonitor *monitor);

    bool loadGL();

    /* update frame layout when enter/exit full screen mode */
    void updateWindowSize();

    void updateFrameSize();

    // GLFW callbacks
    void onGLFWError(int errorID, const char* errorDesc);
    void onGLFWMouseCallBack(GLFWwindow* window, int button, int action, int modify);
    void onGLFWMouseMoveCallBack(GLFWwindow* window, double x, double y);
    void onGLFWMouseScrollCallback(GLFWwindow* window, double x, double y);
    void onGLFWKeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
    void onGLFWCharCallback(GLFWwindow* window, unsigned int character);
    void onGLFWWindowPosCallback(GLFWwindow* windows, int x, int y);
    void onGLFWFramebufferSizeCallback(GLFWwindow* window, int w, int h);
    void onGLFWWindowSizeCallback(GLFWwindow *window, int width, int height);
    void onGLFWWindowIconifyCallback(GLFWwindow* window, int iconified);
    void onGLFWWindowFocusCallback(GLFWwindow* window, int focused);

    bool _captured;
    bool _isInRetinaMonitor;
    bool _isRetinaEnabled;
    int  _retinaFactor;  // Should be 1 or 2

    float _frameZoomFactor;

    GLFWwindow* _mainWindow;
    GLFWmonitor* _monitor;

    std::string _glfwError;

    float _mouseX;
    float _mouseY;

    friend class GLFWEventHandler;
    
public:
    // View will trigger an event when window is resized, gains or loses focus
    static const std::string EVENT_WINDOW_RESIZED;
    static const std::string EVENT_WINDOW_FOCUSED;
    static const std::string EVENT_WINDOW_UNFOCUSED;

private:
    CC_DISALLOW_COPY_AND_ASSIGN(GLViewImpl);
};

NS_CC_END   // end of namespace   cocos2d