ColorPicker.hpp

//
// TGUI - Texus' Graphical User Interface
// Copyright (C) 2012-2026 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_COLOR_PICKER_HPP
#define TGUI_COLOR_PICKER_HPP
 
#include <TGUI/Renderers/ColorPickerRenderer.hpp>
#include <TGUI/Widgets/ChildWindow.hpp>
#include <TGUI/Widgets/Panel.hpp>
#include <TGUI/Widgets/Slider.hpp>

 
namespace tgui
{
    class TGUI_API ColorPicker : public ChildWindow
    {
    public:
        using Ptr = std::shared_ptr<ColorPicker>;            
        using ConstPtr = std::shared_ptr<const ColorPicker>; 
 
        static constexpr char StaticWidgetType[] = "ColorPicker"; 

        explicit ColorPicker(const char* typeName = StaticWidgetType, bool initRenderer = true);

        [[nodiscard]] static ColorPicker::Ptr create(const String& title = "", Color color = Color::Black);

        ColorPicker(const ColorPicker& other);

        ColorPicker(ColorPicker&& other) noexcept;

        ColorPicker& operator=(const ColorPicker& other);

        ColorPicker& operator=(ColorPicker&& other) noexcept;

        [[nodiscard]] static ColorPicker::Ptr copy(const ColorPicker::ConstPtr& colorPicker);

        [[nodiscard]] ColorPickerRenderer* getSharedRenderer() override;
        [[nodiscard]] const ColorPickerRenderer* getSharedRenderer() const override;

        [[nodiscard]] ColorPickerRenderer* getRenderer() override;

        void setColor(const Color& color);

        [[nodiscard]] Color getColor() const;

        bool leftMousePressed(Vector2f pos) override;

        void leftMouseButtonNoLongerDown() override;

        void mouseMoved(Vector2f pos) override;

        void draw(BackendRenderTarget& target, RenderStates states) const override;

 
    protected:
        // Makes sure all widgets lie within the window and places them on the correct position.
        void rearrange();

        [[nodiscard]] Signal& getSignal(String signalName) override;

        void rendererChanged(const String& property) override;

        [[nodiscard]] std::unique_ptr<DataIO::Node> save(SavingRenderersMap& renderers) const override;

        void load(const std::unique_ptr<DataIO::Node>& node, const LoadingRenderersMap& renderers) override;

        // Makes a copy of the widget
        [[nodiscard]] Widget::Ptr clone() const override;

 
    private:
        // Figure and connect signals of widgets
        void identifyButtonsAndConnect();

 
    public:
        SignalColor onColorChange = {"ColorChanged"}; 
        SignalColor onOkPress = {"OkPressed"};        

 
    protected:
        Texture m_colorWheelTexture;
        Sprite m_colorWheelSprite;
 
        Slider::Ptr m_red = Slider::create(0, 255);
        Slider::Ptr m_green = Slider::create(0, 255);
        Slider::Ptr m_blue = Slider::create(0, 255);
        Slider::Ptr m_alpha = Slider::create(0, 255);
 
        Slider::Ptr m_value = Slider::create(0, 100);
 
        Panel::Ptr m_last = Panel::create({60, 30});
        Panel::Ptr m_current = Panel::create({60, 30});
 
        bool m_colorRead = false;
    };
} // namespace tgui
 
#endif //TGUI_COLOR_PICKER_HPP