#pragma once

#ifndef TNZ_POPUPMENU_INCLUDED

#define TNZ_POPUPMENU_INCLUDED

#include "tw/action.h"

#include "tw/popup.h"

#include "tw/button.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

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

class TPopupMenu;

class TPopupMenuItem;

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

class DVAPI TPopupMenuListener {

public:

  TPopupMenuListener() {}

  virtual ~TPopupMenuListener() {}

  virtual void onMenuSelect(TPopupMenuItem *item) = 0;

};

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

class DVAPI TPopupMenuItem : public TButton {

  wstring m_title;

  bool m_selected;

public:

  TPopupMenuItem(TPopupMenu *parent, string name);

  void repaint();

  void enter(const TPoint &);

  void leave(const TPoint &);

  void leftButtonDown(const TMouseEvent &e);

  void leftButtonUp(const TMouseEvent &e);

  void setTitle(wstring title);

  TPopupMenu *getPopup();

  void select(bool on);

  bool isSelected() const { return m_selected; }

  virtual int getWidth();

};

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

class DVAPI TPopupMenuSeparator : public TWidget {

public:

  TPopupMenuSeparator(TPopupMenu *parent);

  void repaint();

};

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

//

// Note: to implement right-mouse-bottom menu use

// the class TContextMenu (see below)

//

class DVAPI TPopupMenu : public TPopup {

  TPopupMenuItem *m_currentItem;

  TPopupMenuListener *m_listener;

  int m_firstVisibleItem;

  int m_visibleItemCount;

  bool m_leftAlignment;

public:

  TPopupMenu(TWidget *parent, string name = "popupMenu");

  void draw();

  void configureNotify(const TDimension &);

  void leftButtonDrag(const TPoint &, UCHAR);

  void leftButtonUp(const TPoint &);

  void popup(const TPoint &pos, int width = 120);

  void close();

  TPopupMenuItem *getCurrentItem() { return m_currentItem; }

  void setListener(TPopupMenuListener *);

  static TPopupMenu *getCurrentMenu();

  void setLeftAlignment(bool a) { m_leftAlignment = a; }

private:

  void updateItemsVisibility();

  void updateSize();

  void computeSize(TPoint &pos, int maxY);

  friend class TPopupMenuArrow;

};

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

//

// TContextMenu :

//  a class specifically dedicated to

//  right-mouse-button popup menu (aka Context Menu)

//

// Note: DON'T use the method popup() (inherited from TPopupMenu)

//

// Note: the context menu will be automatically destroyed

// DON'T keep a reference to the context menu

//

// see examples below

//

/*---- Example 1 (position indipendent) ----

   void Pluto::rightButtonUp(const TMouseEvent &e) {

     TContextMenu *menu = new TContextMenu(this);

     menu->addCommand("MI_Cut");

     menu->addCommand("MI_Copy");

     menu->addCommand("MI_Paste");

     menu->addCommand("MI_Clear");

     TContextMenu::open(menu, e.m_pos);

   }

  ---- Example 2 (position dependent) ----

   class MyContextMenu : public TContextMenu {

     int m_myValue;

   public:

     MyContextMenu(TWidget*parent, int myValue)

     : TContextMenu(parent), m_myValue(myValue), m_col(col) {

        tconnect(this, "foo",  this, &CellContextMenu::onFoo);

        tconnect(this, "bar",  this, &CellContextMenu::onBar);

     }

     void onFoo() { ... }

     void onBar() { ... }

   };

   void Pluto::rightButtonUp(const TMouseEvent &e) {

     int row = ....

     int col = ....

     TContextMenu::open(new CellContextMenu(this, row, col), e.m_pos);

   }

  -----------------------------------------*/

class DVAPI TContextMenu : public TPopupMenu {

public:

  class CommandFilter {

  public:

    virtual bool check(string cmdName) const = 0;

    virtual ~CommandFilter() {}

  };

  TContextMenu(TWidget *parent);

  void add(string name, TGenericCommandAction *action);

  void addCommand(string cmdName);

  void addCommand(string cmdName, TGenericCommandAction *action);

  void addSeparator() { new TPopupMenuSeparator(this); }

  /*

template <class t=""></class>

inline void addCommand(string cmdName, T*target, void (T::*method)()) {

//addCommand(cmdName, new TCommandAction<t>(target, method));</t>

}

*/

  static void open(TContextMenu *menu, const TPoint &pos);

  static void setCommandFilter(CommandFilter *filter);

  void onTimer(int);

};

template <class t=""></class>

inline void tconnect(TContextMenu *menu, string cmdName, T *target,

                     void (T::*method)()) {

  menu->addCommand(cmdName, new TCommandAction<t>(target, method));</t>

}

template <class arg="" class="" t,=""></class>

inline void tconnect(TContextMenu *menu, string cmdName, T *target,

                     void (T::*method)(Arg), Arg arg) {

  menu->addCommand(cmdName, new TCommandAction1<t, arg="">(target, method, arg));</t,>

}

#endif