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/*
* ObjectLists.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "../gui/CIntObject.h"
struct SDL_Surface;
struct Rect;
class CAnimImage;
class CSlider;
class CLabel;
class CAnimation;
/// Used as base for Tabs and List classes
class CObjectList : public CIntObject
{
public:
typedef std::function<std::shared_ptr<CIntObject>(size_t)> CreateFunc;
private:
CreateFunc createObject;
protected:
//Internal methods for safe creation of items (Children capturing and activation/deactivation if needed)
void deleteItem(std::shared_ptr<CIntObject> item);
std::shared_ptr<CIntObject> createItem(size_t index);
CObjectList(CreateFunc create);
};
/// Window element with multiple tabs
class CTabbedInt : public CObjectList
{
private:
std::shared_ptr<CIntObject> activeTab;
size_t activeID;
public:
//CreateFunc, DestroyFunc - see CObjectList
//Pos - position of object, all tabs will be moved to this position
//ActiveID - ID of initially active tab
CTabbedInt(CreateFunc create, Point position=Point(), size_t ActiveID=0);
void setActive(size_t which);
//recreate active tab
void reset();
//return currently active item
std::shared_ptr<CIntObject> getItem();
};
/// List of IntObjects with optional slider
class CListBox : public CObjectList
{
private:
std::list<std::shared_ptr<CIntObject>> items;
size_t first;
size_t totalSize;
Point itemOffset;
std::shared_ptr<CSlider> slider;
void updatePositions();
public:
//CreateFunc, DestroyFunc - see CObjectList
//Pos - position of first item
//ItemOffset - distance between items in the list
//VisibleSize - maximal number of displayable at once items
//TotalSize
//Slider - slider style, bit field: 1 = present(disabled), 2=horisontal(vertical), 4=blue(brown)
//SliderPos - position of slider, if present
CListBox(CreateFunc create, Point Pos, Point ItemOffset, size_t VisibleSize,
size_t TotalSize, size_t InitialPos=0, int Slider=0, Rect SliderPos=Rect() );
//recreate all visible items
void reset();
//change or get total amount of items in the list
void resize(size_t newSize);
size_t size();
//return item with index which or null if not present
std::shared_ptr<CIntObject> getItem(size_t which);
//return currently active items
const std::list<std::shared_ptr<CIntObject>> & getItems();
//get index of this item. -1 if not found
size_t getIndexOf(std::shared_ptr<CIntObject> item);
//scroll list to make item which visible
void scrollTo(size_t which);
//scroll list to specified position
void moveToPos(size_t which);
void moveToNext();
void moveToPrev();
size_t getPos();
};
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