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/* Copyright (C) 2025 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. 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.
*
* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_IGUISCROLLBAROWNER
#define INCLUDED_IGUISCROLLBAROWNER
#include "lib/code_annotation.h"
#include <memory>
#include <vector>
class CCanvas2D;
class CStr8;
class IGUIObject;
class IGUIScrollBar;
struct SGUIMessage;
struct SGUIScrollBarStyle;
/**
* Base-class this if you want an object to contain
* one, or several, scroll-bars.
*/
class IGUIScrollBarOwner
{
NONCOPYABLE(IGUIScrollBarOwner);
friend class IGUIScrollBar;
public:
IGUIScrollBarOwner(IGUIObject& m_pObject);
virtual ~IGUIScrollBarOwner();
virtual void Draw(CCanvas2D& canvas);
/**
* @see IGUIObject#HandleMessage()
*/
virtual void HandleMessage(SGUIMessage& Message);
/**
* @see IGUIObject#ResetStates()
*/
virtual void ResetStates();
/**
* Interface for the m_ScrollBar to use.
*/
virtual const SGUIScrollBarStyle* GetScrollBarStyle(const CStr8& style) const;
/**
* Add a scroll-bar
*/
virtual void AddScrollBar(std::unique_ptr<IGUIScrollBar> scrollbar);
/**
* Get Scroll Bar reference (it should be transparent it's actually
* pointers).
*/
virtual IGUIScrollBar& GetScrollBar(const int& index)
{
return *m_ScrollBars[index];
}
/**
* Get the position of the scroll bar at @param index.
* Equivalent to GetScrollbar(index).GetPos().
*/
virtual float GetScrollBarPos(const int index) const;
protected:
/**
* Predominately you will only have one, but you can have
* as many as you like.
*/
std::vector<std::unique_ptr<IGUIScrollBar>> m_ScrollBars;
private:
/**
* Reference to the IGUIObject.
* Private, because we don't want to inherit it in multiple classes.
*/
IGUIObject& m_pObject;
};
#endif // INCLUDED_IGUISCROLLBAROWNER
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