#pragma once

#ifndef TEXTLIST_INCLUDED
#define TEXTLIST_INCLUDED

#include "tw/tw.h"
#include "tw/scrollview.h"

#undef DVAPI
#undef DVVAR
#ifdef TWIN_EXPORTS
#define DVAPI DV_EXPORT_API
#define DVVAR DV_EXPORT_VAR
#else
#define DVAPI DV_IMPORT_API
#define DVVAR DV_IMPORT_VAR
#endif

#ifdef WIN32
#pragma warning(disable : 4251)
#endif

//-------------------------------------------------------------------

class DVAPI TGenericTextListAction
{
public:
	virtual ~TGenericTextListAction() {}
	virtual void sendCommand(int itemIndex) = 0;
};

//-------------------------------------------------------------------

template <class T>
class TTextListAction : public TGenericTextListAction
{
public:
	typedef void (T::*Method)(int itemIndex);
	TTextListAction(T *target, Method method) : m_target(target), m_method(method) {}
	void sendCommand(int itemIndex) { (m_target->*m_method)(itemIndex); }
private:
	T *m_target;
	Method m_method;
};

//-------------------------------------------------------------------

class DVAPI TTextListItem
{
public:
	TTextListItem(const std::string &id, const std::string &caption);
	virtual ~TTextListItem() {}

	std::string getId() { return m_id; }
	std::string getCaption() { return m_caption; }

private:
	std::string m_id;
	std::string m_caption;
};

//-------------------------------------------------------------------

class DVAPI TTextList : public TWidget
{
public:
	TTextList(TWidget *parent, std::string name = "textlist");
	~TTextList();

	void addItem(TTextListItem *item);
	void removeItem(const std::string &itemId);
	void clearAll();

	int getItemCount() const;
	TTextListItem *getItem(int i) const;

	// returns the index of item, -1 if not present
	int itemToIndex(const std::string &itemId);

	int getSelectedItemCount() const;
	TTextListItem *getSelectedItem(int i) const;
	std::string getSelectedItemId(int i) const; // returns the id of the i-th item selected

	void select(int i, bool on);
	void select(const std::string &itemId, bool on);
	void unselectAll();

	bool isSelected(int i) const;
	bool isSelected(const std::string &itemId) const;

	void setSelAction(TGenericTextListAction *action);
	void setDblClickAction(TGenericTextListAction *action);

	void draw();
	void configureNotify(const TDimension &d);

	void leftButtonDown(const TMouseEvent &e);
	void leftButtonDoubleClick(const TMouseEvent &e);
	void keyDown(int key, unsigned long mod, const TPoint &);

	void scrollTo(int y);

private:
	class Data;
	Data *m_data;
};

#endif