ThemeLoader.hpp

 
//
// TGUI - Texus's Graphical User Interface
// Copyright (C) 2012-2017 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_THEME_LOADER_HPP
#define TGUI_THEME_LOADER_HPP
 
 
#include <TGUI/Widget.hpp>
 
#include <memory>
#include <string>
#include <vector>
#include <map>
 
namespace tgui
{
 class Widget;
 
 class TGUI_API BaseThemeLoader
 {
 public:
 
 using PropertyValuePairs = std::map<std::string, std::string>;
 
 
 virtual ~BaseThemeLoader() = default;
 
 
 virtual std::string load(const std::string& primary, const std::string& secondary, PropertyValuePairs& properties) = 0;
 };
 
 
 class TGUI_API DefaultThemeLoader : public BaseThemeLoader
 {
 public:
 
 std::string load(const std::string& filename, const std::string& className, PropertyValuePairs& properties) override;
 
 
 static void flushCache(const std::string& filename = "");
 
 
 protected:
 
 virtual void readFile(const std::string& filename, std::stringstream& contents) const;
 
 
 private:
 static std::map<std::string, std::map<std::string, PropertyValuePairs>> m_propertiesCache;
 static std::map<std::string, std::map<std::string, std::string>> m_widgetTypeCache;
 
 friend struct DefaultThemeLoaderTest;
 };
 
 
}
 
 
#endif // TGUI_THEME_LOADER_HPP