CanvasGLES2.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_CANVAS_GLES2_HPP
#define TGUI_CANVAS_GLES2_HPP
 
#include <TGUI/Config.hpp>
#include <TGUI/Backend/Renderer/GLES2/BackendTextureGLES2.hpp>
#include <TGUI/Backend/Renderer/BackendRenderTarget.hpp>
#include <TGUI/Widgets/ClickableWidget.hpp>
 
 
namespace tgui
{
    class TGUI_API CanvasGLES2 : public ClickableWidget
    {
    public:
 
        typedef std::shared_ptr<CanvasGLES2> Ptr; 
        typedef std::shared_ptr<const CanvasGLES2> ConstPtr; 
 
 
        CanvasGLES2(const char* typeName = "CanvasGLES2", bool initRenderer = true);
 
 
        CanvasGLES2(const CanvasGLES2& copy);
 
 
        CanvasGLES2(CanvasGLES2&& copy) = default;
 
 
        ~CanvasGLES2();
 
 
        CanvasGLES2& operator= (const CanvasGLES2& right);
 
 
        CanvasGLES2& operator= (CanvasGLES2&& right) = default;
 
 
        static CanvasGLES2::Ptr create(Layout2d size = {"100%", "100%"});
 
 
        static CanvasGLES2::Ptr copy(CanvasGLES2::ConstPtr canvas);
 
 
        void setSize(const Layout2d& size) override;
        using Widget::setSize;
 
 
        void draw(BackendRenderTarget& target, RenderStates states) const override;
 
 
        bool canGainFocus() const override;
 
 
        unsigned int bindFramebuffer() const;
 
 
    protected:
 
        // Makes a copy of the widget
        Widget::Ptr clone() const override;
 
 
    protected:
 
        unsigned int m_textureId = 0;
        unsigned int m_frameBuffer = 0;
        Vector2u m_textureSize;
        Vector2u m_usedTextureSize;
        std::shared_ptr<BackendTextureGLES2> m_backendTexture;
    };
}
 
 
#endif // TGUI_CANVAS_GLES2_HPP