Added Color Picker Widget

include/TGUI/Renderers/ColorPickerRenderer.hpp

@@ -0,0 +1,105 @@
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+//
+// TGUI - Texus' Graphical User Interface
+// Copyright (C) 2012-2020 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_RENDERER_HPP
+#define TGUI_COLOR_PICKER_RENDERER_HPP
+
+
+#include <TGUI/Renderers/ChildWindowRenderer.hpp>
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+namespace tgui
+{
+    class TGUI_API ColorPickerRenderer : public ChildWindowRenderer
+    {
+    public:
+
+        using ChildWindowRenderer::ChildWindowRenderer;
+
+
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// @brief Sets the renderer data of the buttons which the color picker uses
+        ///
+        /// @param rendererData  Data about how the buttons should look
+        ///
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        void setButton(std::shared_ptr<RendererData> rendererData);
+
+
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// @brief Returns the renderer data of the buttons which the color picker uses
+        ///
+        /// @return Data about how the buttons looks
+        ///
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        std::shared_ptr<RendererData> getButton() const;
+
+
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// @brief Sets the renderer data of the labels which the color picker uses
+        ///
+        /// @param rendererData  Data about how the labels should look
+        ///
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        void setLabel(std::shared_ptr<RendererData> rendererData);
+
+
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// @brief Returns the renderer data of the labels which the color picker uses
+        ///
+        /// @return Data about how the labels looks
+        ///
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        std::shared_ptr<RendererData> getLabel() const;
+
+
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// @brief Sets the renderer data of the sliders which the color picker uses
+        ///
+        /// @param rendererData  Data about how the sliders should look
+        ///
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        void setSlider(std::shared_ptr<RendererData> rendererData);
+
+
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        /// @brief Returns the renderer data of the sliders which the color picker uses
+        ///
+        /// @return Data about how the sliders looks
+        ///
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+        std::shared_ptr<RendererData> getSlider() const;
+
+
+        /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+    };
+
+    /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#endif // TGUI_COLOR_PICKER_RENDERER_HPP

include/TGUI/Signal.hpp

@@ -31,6 +31,7 @@
 #include <TGUI/Global.hpp>
 #include <TGUI/Vector2f.hpp>
 #include <TGUI/Animation.hpp>
+#include <TGUI/Color.hpp>
 #include <SFML/System/String.hpp>
 #include <type_traits>
 #include <functional>
@@ -93,6 +94,12 @@ namespace tgui
             static constexpr const char* const EscapeKeyPressed = "EscapeKeyPressed";   ///< The escape key was pressed while the child window was focused. Optional parameter: pointer to the window
         };
 
+        struct ColorPicker : public ChildWindow
+        {
+            static constexpr const char* const ColorChange = "ColorChanged";            ///< The color was changed. Optional parameter: color chosen
+            static constexpr const char* const OkPressed = "OkPressed";           ///< The ok key was pressed. Optional parameter: color chosen
+        };
+
         struct ComboBox : public Widget
         {
             static constexpr const char* const ItemSelected = "ItemSelected";   ///< An item was selected in the combo box. Optional parameter: selected item or its index
@@ -458,6 +465,7 @@ namespace tgui
     TGUI_SIGNAL_VALUE_DECLARATION(Float, float)
     TGUI_SIGNAL_VALUE_DECLARATION(String, const sf::String&)
     TGUI_SIGNAL_VALUE_DECLARATION(Vector2f, Vector2f)
+    TGUI_SIGNAL_VALUE_DECLARATION(Color, Color)
 
 
     /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

include/TGUI/SignalImpl.hpp

@@ -55,6 +55,8 @@ namespace tgui
                 return static_cast<std::string>(*static_cast<const sf::String*>(obj));
             else if constexpr (std::is_same_v<Type, sf::Vector2f>) // Signal handlers are allowed to have sf::Vector2f parameters while the signal sends tgui::Vector2f
                 return static_cast<sf::Vector2f>(*static_cast<const Vector2f*>(obj));
+            else if constexpr (std::is_same_v<Type, sf::Color>) // Signal handlers are allowed to have sf::Color parameters while the signal sends tgui::Color
+                return static_cast<sf::Color>(*static_cast<const Color*>(obj));
             else
                 return *static_cast<const std::decay_t<Type>*>(obj);
         }
@@ -73,7 +75,14 @@ namespace tgui
             return static_cast<sf::Vector2f>(*static_cast<const Vector2f*>(obj));
         }
 
-        template <typename Type, typename std::enable_if<!std::is_same<Type, std::string>::value && !std::is_same<Type, sf::Vector2f>::value>::type* = nullptr>
+        template <typename Type, typename std::enable_if<std::is_same<Type, sf::Color>::value>::type* = nullptr>
+        decltype(auto) dereference(const void* obj)
+        {
+            // Signal handlers are allowed to have sf::Vector2f parameters while the signal sends tgui::Vector2f
+            return static_cast<sf::Color>(*static_cast<const Color*>(obj));
+        }
+
+        template <typename Type, typename std::enable_if<!std::is_same<Type, std::string>::value && !std::is_same<Type, sf::Vector2f>::value && !std::is_same<Type, sf::Color>::value>::type* = nullptr>
         decltype(auto) dereference(const void* obj)
         {
             return *static_cast<const typename std::decay<Type>::type*>(obj);

include/TGUI/TGUI.hpp

@@ -47,6 +47,7 @@
 #include <TGUI/Widgets/CheckBox.hpp>
 #include <TGUI/Widgets/ChildWindow.hpp>
 #include <TGUI/Widgets/ClickableWidget.hpp>
+#include <TGUI/Widgets/ColorPicker.hpp>
 #include <TGUI/Widgets/ComboBox.hpp>
 #include <TGUI/Widgets/EditBox.hpp>
 #include <TGUI/Widgets/Group.hpp>