/*
* Descent 3
* Copyright (C) 2024 Parallax Software
*
* 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 3 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, see <http://www.gnu.org/licenses/>.

--- HISTORICAL COMMENTS FOLLOW ---

 * $Logfile: /descent3/main/editor/PictListBox.h $
 * $Revision: 1.1.1.1 $
 * $Date: 2003-08-26 03:57:38 $
 * $Author: kevinb $
 *
 * Editor Generic Picture List Box.  You must declare your own custom
 * box.
 *
 * $Log: not supported by cvs2svn $
 *
 * 4     4/02/97 12:21p Samir
 * Moved some protected members to public to make list boxes more
 * managable by parents.
 *
 * 3     3/18/97 12:12p Samir
 * Parent window accessable to child classes.
 *
 * 2     2/25/97 1:24p Samir
 * Made SelectItem a public.
 *
 * $NoKeywords: $
 */

//	D3editor Pictoral ListBox Control

#ifndef PICTLISTBOX_H
#define PICTLISTBOX_H

#include "gr.h"

class editorPictListBox {
protected:
  CWnd *m_ParentWnd;

private:
  int m_StaticID;
  int m_ScrollbarID;
  RECT m_ListRect;   // listbox rect
  int m_ItemStart;   // Initial item (not index into listbox, but into object list)
  int m_ListPos;     // Current position of textture list.
  int m_PageLen;     // length of one view of textures in listbox
  int m_ItemsPerRow; // textures per row
  int m_ItemsMaxRow; // maximum number of rows.
  int m_ItemsMax;
  bool m_Redraw;
  int m_CheckX, m_CheckY, m_CheckForSelect;
  int m_OldItemCount; // texture count saved from last update.
  int m_ItemSelected; // currently selected texture.
  int m_SurfDim;

private:
  void ListDown(int rows);
  void ListUp(int rows);

public:
  editorPictListBox(); // constructor

  // attach to a window.  it will take over that window
  void Create(CWnd *parent, int static_id, int scroll_id, int item_dim, int init_item);
  void Invalidate(); // forces a redraw. (calls Update);
  void SelectItem(int item);
  int GetSelectedItem() const { return m_ItemSelected; };
  int GetItemStart() const { return m_ItemStart; };
  void SetItemStart(int start) { m_ItemStart = start; };

protected:
  //	Handlers
  void SetItemMax(int max) { m_ItemsMax = max; };

public:
  void OnLButtonDown(CPoint point); // called by parent window.
  void OnVScroll(UINT nSBCode, int nPos, CScrollBar *pScrollBar);

  //	Handlers used by editorPictListBox.
protected:
  virtual void StartIterateListItems() = 0;
  virtual int NextListItem(int curitem) = 0;
  virtual int PrevListItem(int curitem) = 0;
  virtual void DrawItem(int x, int y, int item) = 0;
  virtual void OnItemSelected(int item) = 0;
  virtual void Update(); // updates the display of the listbox if needed.

protected:
  grHardwareSurface m_ItemSurf, m_ItemSurfSel;
};

#endif