/*
*********************************************************************************************************
*                                             uC/GUI V3.98
*                        Universal graphic software for embedded applications
*
*                       (c) Copyright 2002, Micrium Inc., Weston, FL
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*              礐/GUI 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 redistributed
*              in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File        : GRAPH_Private.h
Purpose     : GRAPH private header file
--------------------END-OF-HEADER-------------------------------------
*/

#ifndef GRAPH_PRIVATE_H
#define GRAPH_PRIVATE_H

#include "GRAPH.h"
#include "GUI_ARRAY.h"
#include "WIDGET.h"

#if GUI_WINSUPPORT

/*********************************************************************
*
*       Object definition
*
**********************************************************************
*/
typedef struct GRAPH_OBJ        GRAPH_OBJ;
typedef struct GRAPH_DATA_OBJ   GRAPH_DATA_OBJ;
typedef struct GRAPH_SCALE_OBJ  GRAPH_SCALE_OBJ;
typedef struct GRAPH_PAINT_OBJ  GRAPH_PAINT_OBJ;

struct GRAPH_PAINT_OBJ {
  void    (* pfOnPaint)  (WM_HMEM hObj, GUI_RECT * pRectInvalid); /* Pointer to paint function */ 
  void    (* pfOnDelete) (WM_HMEM hObj);                          /* Pointer to delete function */
  WM_HWIN hGraph;                                                 /* Handle of graph widget */    
};

typedef struct {
  GUI_COLOR                    TextColor;
  const GUI_FONT GUI_UNI_PTR * pFont;
} GRAPH_SCALE_PROPS;

struct GRAPH_SCALE_OBJ {
  GRAPH_PAINT_OBJ   PaintObj;
  GRAPH_SCALE_PROPS Props;
  int               Pos;
  int               TextAlign;
  unsigned          TickDist;
  int               Off;
  U16               Flags;
  float             Factor;
  int               NumDecs;
};

struct GRAPH_DATA_OBJ {
  GRAPH_PAINT_OBJ PaintObj;
  unsigned        NumItems;
  unsigned        MaxNumItems;
  GUI_COLOR       Color;
  int             OffX, OffY;
};

typedef struct {
  GUI_COLOR aColor[4];
  unsigned  GridSpacingX;
  unsigned  GridSpacingY;
  unsigned  GridOffX;
  unsigned  GridOffY;
  unsigned  BorderL;
  unsigned  BorderT;
  unsigned  BorderR;
  unsigned  BorderB;
} GRAPH_PROPS;

struct GRAPH_OBJ {
  WIDGET          Widget;
  GRAPH_PROPS     Props;
  GUI_ARRAY       GraphArray;
  GUI_ARRAY       ScaleArray;
  U8              ShowGrid;
  unsigned        RangeX, RangeY;
  U16             Flags;
  U8              LineStyleV;
  U8              LineStyleH;
  WM_SCROLL_STATE ScrollStateV;
  WM_SCROLL_STATE ScrollStateH;
  void            (* pUserDraw)(WM_HWIN hObj, int Stage);
  #if GUI_DEBUG_LEVEL >= GUI_DEBUG_LEVEL_CHECK_ALL
    int       DebugId;
  #endif  
};

/*********************************************************************
*
*       Macros for internal use
*
**********************************************************************
*/
#if GUI_DEBUG_LEVEL >= GUI_DEBUG_LEVEL_CHECK_ALL
  GRAPH_OBJ * GRAPH_h2p(GRAPH_Handle h);
  #define GRAPH_H2P(h) GRAPH_h2p(h)
  #define GRAPH_INIT_ID(p) p->DebugId = GRAPH_ID
#else
  #define GRAPH_H2P(h) (GRAPH_OBJ *)GUI_ALLOC_h2p(h)
  #define GRAPH_INIT_ID(p)
#endif

/*********************************************************************
*
*       Public data (internal defaults)
*
**********************************************************************
*/
extern GRAPH_PROPS GRAPH__DefaultProps;

/*********************************************************************
*
*       Private functions
*
**********************************************************************
*/
void GRAPH__AddValue (GRAPH_DATA_OBJ * pDataObj, void * pData, void * pValue, int Size);

#endif /* GUI_WINSUPPORT */
#endif /* GRAPH_PRIVATE_H */