/*********************************************************************
*                SEGGER MICROCONTROLLER SYSTEME GmbH                 *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*        (c) 1996 - 2007  SEGGER Microcontroller Systeme GmbH        *
*                                                                    *
*        Internet: www.segger.com    Support:  support@segger.com    *
*                                                                    *
**********************************************************************

** emWin V4.14 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws.   Knowledge of the
source code may not be used to write a similar product.  This file may
only be used in accordance with a license and should not be re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File        : TREEVIEW_Private.h
Purpose     : TREEVIEW private header file
--------------------END-OF-HEADER-------------------------------------
*/

#ifndef TREEVIEW_PRIVATE_H
#define TREEVIEW_PRIVATE_H

#include "WM.h"
#include "TREEVIEW.h"

#if GUI_WINSUPPORT

/*********************************************************************
*
*       Defines
*
**********************************************************************
*/
#define TREEVIEW_ITEM_STATE_EXPANDED (1 << 1)
#define TREEVIEW_ITEM_STATE_ISLAST   (1 << 2)

#define TREEVIEW_STATE_HASLINES      (1 << 0)

#define TREEVIEW_COLORS_BK   0
#define TREEVIEW_COLORS_TEXT 1
#define TREEVIEW_COLORS_LINE 2

/*********************************************************************
*
*       Types
*
**********************************************************************
*/
typedef struct {
  const GUI_BITMAP GUI_UNI_PTR * apBm[3]; /* Closed, Open, Leaf */
} TREEVIEW_ITEM_DATA;

typedef struct {
  WM_HMEM              hParent; /* Handle to treeview object */
  TREEVIEW_ITEM_Handle hNext;
  TREEVIEW_ITEM_Handle hPrev;
  U32                  UserData;
  WM_HMEM              hData;  /* Handle of TREEVIEW_ITEM_DATA structure */
  U16                  xSize;
  U16                  ySize;
  U16                  Flags;
  U16                  Connectors;
  U8                   Level;  /* 0...15 */
  char                 acText[1];
} TREEVIEW_ITEM_OBJ;

typedef struct {
  const GUI_FONT GUI_UNI_PTR * pFont;
  GUI_COLOR aBkColor[3];
  GUI_COLOR aTextColor[3];
  GUI_COLOR aLineColor[3];
  GUI_COLOR FocusColor;
  const GUI_BITMAP GUI_UNI_PTR * apBm[5]; /* Closed, Open, Leaf, Plus, Minus */
  int Indent;
  int TextIndent;
  int MinItemHeight;
} TREEVIEW_PROPS;

typedef struct {
  WIDGET                  Widget;
  WIDGET_DRAW_ITEM_FUNC * pfDrawItem;
  WM_SCROLL_STATE         ScrollStateV;
  WM_SCROLL_STATE         ScrollStateH;
  TREEVIEW_PROPS          Props;
  U16                     Flags;
  TREEVIEW_ITEM_Handle    hFirst;
  TREEVIEW_ITEM_Handle    hLast;
  TREEVIEW_ITEM_Handle    hSel;
  GUI_TIMER_HANDLE        hTimer;
  /* Cache variables */
  int NumItems;
  int NumVisItems;
  int xSizeItems;   /* xSize in pixel used for all visible items */
  int ySizeItems;   /* ySize in pixel used for all visible items */
  /* Type check in debug version */
  #if GUI_DEBUG_LEVEL >= GUI_DEBUG_LEVEL_CHECK_ALL
    int DebugId;
  #endif  
} TREEVIEW_OBJ;

/*********************************************************************
*
*       Macros for internal use
*
**********************************************************************
*/
#if GUI_DEBUG_LEVEL >= GUI_DEBUG_LEVEL_CHECK_ALL
  TREEVIEW_OBJ * TREEVIEW_h2p(TREEVIEW_Handle h);
  #define TREEVIEW_H2P(h) TREEVIEW_h2p(h)
  #define TREEVIEW_INIT_ID(p) p->DebugId = TREEVIEW_ID
#else
  #define TREEVIEW_H2P(h) (TREEVIEW_OBJ *)GUI_ALLOC_h2p(h)
  #define TREEVIEW_INIT_ID(p)
#endif

/*********************************************************************
*
*       Module internal data
*
**********************************************************************
*/
extern TREEVIEW_PROPS TREEVIEW__DefaultProps;
extern GUI_CONST_STORAGE GUI_BITMAP TREEVIEW__bmOpen;
extern GUI_CONST_STORAGE GUI_BITMAP TREEVIEW__bmClosed;
extern GUI_CONST_STORAGE GUI_BITMAP TREEVIEW__bmLeaf;
extern GUI_CONST_STORAGE GUI_BITMAP TREEVIEW__bmPlus;
extern GUI_CONST_STORAGE GUI_BITMAP TREEVIEW__bmMinus;

#endif   /* GUI_WINSUPPORT */
#endif   /* TREEVIEW_H */

/*************************** End of file ****************************/