Tabs.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_TAB_HPP
#define TGUI_TAB_HPP
 
 
#include <TGUI/Widget.hpp>
#include <TGUI/Renderers/TabsRenderer.hpp>
#include <TGUI/Text.hpp>
 
 
namespace tgui
{
    class TGUI_API Tabs : public Widget
    {
    public:
 
        typedef std::shared_ptr<Tabs> Ptr; 
        typedef std::shared_ptr<const Tabs> ConstPtr; 
 
 
        Tabs(const char* typeName = "Tabs", bool initRenderer = true);
 
 
        static Tabs::Ptr create();
 
 
        static Tabs::Ptr copy(Tabs::ConstPtr tab);
 
 
        TabsRenderer* getSharedRenderer();
        const TabsRenderer* getSharedRenderer() const;
 
        TabsRenderer* getRenderer();
        const TabsRenderer* getRenderer() const;
 
 
        void setSize(const Layout2d& size) override;
        using Widget::setSize;
 
 
        void setEnabled(bool enabled) override;
 
 
        void setAutoSize(bool autoSize);
 
 
        bool getAutoSize() const;
 
 
        std::size_t add(const String& text, bool select = true);
 
 
        void insert(std::size_t index, const String& text, bool select = true);
 
 
        String getText(std::size_t index) const;
 
 
        bool changeText(std::size_t index, const String& text);
 
 
        bool select(const String& text);
 
 
        bool select(std::size_t index);
 
 
        void deselect();
 
 
        bool remove(const String& text);
 
 
        bool remove(std::size_t index);
 
 
        void removeAll();
 
 
        String getSelected() const;
 
 
        int getSelectedIndex() const;
 
 
        void setTabVisible(std::size_t index, bool visible);
 
 
        bool getTabVisible(std::size_t index) const;
 
 
        void setTabEnabled(std::size_t index, bool enabled);
 
 
        bool getTabEnabled(std::size_t index) const;
 
 
        void setTextSize(unsigned int size) override;
 
 
        void setTabHeight(float height);
 
 
        void setMaximumTabWidth(float maximumWidth);
 
 
        float getMaximumTabWidth() const;
 
 
        void setMinimumTabWidth(float minimumWidth);
 
 
        float getMinimumTabWidth() const;
 
 
        std::size_t getTabsCount() const;
 
 
        bool isMouseOnWidget(Vector2f pos) const override;
 
        void leftMousePressed(Vector2f pos) override;
 
        void mouseMoved(Vector2f pos) override;
 
        void mouseNoLongerOnWidget() override;
 
 
        void draw(BackendRenderTargetBase& target, RenderStates states) const override;
 
 
    protected:
 
        Signal& getSignal(String signalName) override;
 
 
        // Recalculates the size of each tab image.
        void recalculateTabsWidth();
 
 
        // Update the colors of the text that is drawn on the tabs
        void updateTextColors();
 
 
        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;
 
 
        // Makes a copy of the widget
        Widget::Ptr clone() const override
        {
            return std::make_shared<Tabs>(*this);
        }
 
 
    public:
 
        SignalString onTabSelect = {"TabSelected"}; 
 
 
    protected:
        unsigned int       m_requestedTextSize = 0;
        float              m_maximumTabWidth = 0;
        float              m_minimumTabWidth = 0;
        int                m_selectedTab = -1;
        int                m_hoveringTab = -1;
        bool               m_autoSize = true;
 
        struct Tab
        {
            bool  visible;
            bool  enabled;
            float width;
            Text  text;
        };
        std::vector<Tab> m_tabs;
 
        Sprite m_spriteTab;
        Sprite m_spriteTabHover;
        Sprite m_spriteSelectedTab;
        Sprite m_spriteSelectedTabHover;
        Sprite m_spriteDisabledTab;
 
        // Cached renderer properties
        Borders   m_bordersCached;
        Color     m_borderColorCached;
        Color     m_borderColorHoverCached;
        Color     m_selectedBorderColorCached;
        Color     m_selectedBorderColorHoverCached;
        Color     m_backgroundColorCached;
        Color     m_backgroundColorHoverCached;
        Color     m_backgroundColorDisabledCached;
        Color     m_selectedBackgroundColorCached;
        Color     m_selectedBackgroundColorHoverCached;
        Color     m_textColorCached;
        Color     m_textColorHoverCached;
        Color     m_textColorDisabledCached;
        Color     m_selectedTextColorCached;
        Color     m_selectedTextColorHoverCached;
        float     m_distanceToSideCached = 0;
 
    };
 
}
 
 
 
#endif // TGUI_TAB_HPP