BackendGuiGLFW.hpp

 
//
// TGUI - Texus' Graphical User Interface
// Copyright (C) 2012-2022 Bruno Van de Velde (vdv_b@tgui.eu)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
 
 
#ifndef TGUI_BACKEND_GUI_GLFW_HPP
#define TGUI_BACKEND_GUI_GLFW_HPP
 
#include <TGUI/Backend/Window/BackendGui.hpp>
#include <TGUI/Optional.hpp>
 
 
typedef struct GLFWwindow GLFWwindow;
 
 
namespace tgui
{
 
    class TGUI_API BackendGuiGLFW : public BackendGui
    {
    public:
 
        BackendGuiGLFW() = default;
 
 
        void windowFocusCallback(int focused);
 
 
        void sizeCallback(int width, int height);
 
 
        void charCallback(unsigned int codepoint);
 
 
        void keyCallback(int key, int scancode, int action, int mods);
 
 
        void scrollCallback(double xoffset, double yoffset);
 
 
        void cursorPosCallback(double xpos, double ypos);
 
 
        void mouseButtonCallback(int button, int action, int mods);
 
 
        void mainLoop(Color clearColor = {240, 240, 240}) override;
 
 
        Optional<Event> convertWindowFocusEvent(int focused);
 
 
        Optional<Event> convertSizeEvent(int width, int height);
 
 
        Optional<Event> convertCharEvent(unsigned int codepoint);
 
 
        Optional<Event> convertKeyEvent(int key, int scancode, int action, int mods);
 
 
        Optional<Event> convertScrollEvent(double xoffset, double yoffset);
 
 
        Optional<Event> convertCursorPosEvent(double xpos, double ypos);
 
 
        Optional<Event> convertMouseButtonEvent(int button, int action, int mods);
 
 
    protected:
 
        void setGuiWindow(GLFWwindow* window);
 
 
        // Updates the view and changes the size of the root container when needed
        void updateContainerSize() override;
 
 
    protected:
 
        GLFWwindow* m_window = nullptr;
 
    };
}
 
 
#endif // TGUI_BACKEND_GUI_GLFW_HPP