BitmapButton.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_BITMAP_BUTTON_HPP
#define TGUI_BITMAP_BUTTON_HPP
 
 
#include <TGUI/Widgets/Button.hpp>
 
 
namespace tgui
{
    class TGUI_API BitmapButton : public Button
    {
    public:
 
        typedef std::shared_ptr<BitmapButton> Ptr; 
        typedef std::shared_ptr<const BitmapButton> ConstPtr; 
 
 
        BitmapButton(const char* typeName = "BitmapButton", bool initRenderer = true);
 
 
        BitmapButton(const BitmapButton&);
 
        BitmapButton(BitmapButton&&);
 
        BitmapButton& operator=(const BitmapButton&);
 
        BitmapButton& operator=(BitmapButton&&);
 
        ~BitmapButton();
 
 
        static BitmapButton::Ptr create(const String& text = "");
 
 
        static BitmapButton::Ptr copy(BitmapButton::ConstPtr button);
 
 
        void setSize(const Layout2d& size) override;
        using Widget::setSize;
 
 
        virtual void setText(const String& text) override;
 
 
        void setImage(const Texture& image);
 
 
        const Texture& getImage() const;
 
 
        void setImageScaling(float relativeHeight);
 
 
        float getImageScaling() const;
 
 
    protected:
 
        void rendererChanged(const String& property) override;
 
 
        std::unique_ptr<DataIO::Node> save(SavingRenderersMap& renderers) const override;
 
 
        void load(const std::unique_ptr<DataIO::Node>& node, const LoadingRenderersMap& renderers) override;
 
 
        // Called when size of button is updated
        void updateSize() override;
 
 
        void initComponentsBitmapButton();
 
 
        void updateComponentPositions();
 
 
        // Makes a copy of the widget
        Widget::Ptr clone() const override
        {
            return std::make_shared<BitmapButton>(*this);
        }
 
 
    private:
 
        // Recalculates the glyph size based on the set relative glyph height
        void recalculateGlyphSize();
 
 
    private:
 
        priv::dev::StyleProperty<Texture> icon;
 
        // The component must be declared AFTER the style property
        std::shared_ptr<priv::dev::ImageComponent> m_imageComponent;
 
        float m_relativeGlyphHeight = 0;
 
        std::uint64_t m_textStyleChangedCallbackId = 0;
    };
 
}
 
 
#endif // TGUI_BITMAP_BUTTON_HPP