aseprite/src/app/widget_loader.h

85 lines
2.6 KiB
C++

/* Aseprite
* Copyright (C) 2001-2013 David Capello
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef APP_WIDGET_LOADER_H_INCLUDED
#define APP_WIDGET_LOADER_H_INCLUDED
#include "app/widget_type_mismatch.h"
#include "base/string.h"
#include <map>
class TiXmlElement;
namespace ui {
class Widget;
class TooltipManager;
}
namespace app {
class WidgetLoader {
public:
// Interface used to create customized widgets.
class IWidgetTypeCreator {
public:
virtual ~IWidgetTypeCreator() { }
virtual void dispose() = 0;
virtual ui::Widget* createWidgetFromXml(const TiXmlElement* xmlElem) = 0;
};
WidgetLoader();
~WidgetLoader();
// Adds a new widget type that can be referenced in the .xml file
// with an XML element. The "tagName" is the same name as in the
// .xml should appear as <tagName>...</tagName>
//
// The "creator" will not be deleted automatically at the
// WidgetLoader dtor.
void addWidgetType(const char* tagName, IWidgetTypeCreator* creator);
// Loads the specified widget from an .xml file.
ui::Widget* loadWidget(const char* fileName, const char* widgetId);
template<class T>
T* loadWidgetT(const char* fileName, const char* widgetId) {
ui::Widget* widget = loadWidget(fileName, widgetId);
T* specificWidget = dynamic_cast<T*>(widget);
if (!specificWidget)
throw WidgetTypeMismatch(widgetId);
return specificWidget;
}
private:
ui::Widget* loadWidgetFromXmlFile(const base::string& xmlFilename,
const base::string& widgetId);
ui::Widget* convertXmlElementToWidget(const TiXmlElement* elem, ui::Widget* root);
typedef std::map<base::string, IWidgetTypeCreator*> TypeCreatorsMap;
TypeCreatorsMap m_typeCreators;
ui::TooltipManager* m_tooltipManager;
};
} // namespace app
#endif