listbox_private.h

基于嵌入式实时多任务操作系统ucos－ii的GUI的源码

/*
*********************************************************************************************************
*                                                uC/GUI
*                        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        : LISTBOX_Private.h
Purpose     : Private LISTBOX include
--------------------END-OF-HEADER-------------------------------------
*/

#ifndef LISTBOX_PRIVATE_H
#define LISTBOX_PRIVATE_H

#include "LISTBOX.h"
#include "WM.h"
#include "GUI_ARRAY.h"
#include "WIDGET.h"

#if GUI_WINSUPPORT

/*********************************************************************
*
*       Macros for internal use
*
**********************************************************************
*/

#define LISTBOX_H2P(h) (LISTBOX_Obj*) GUI_ALLOC_h2p(h)

#if GUI_DEBUG_LEVEL >1
  #define OBJECT_ID 0x4C69   /* Magic numer, should be unique if possible */
  #define ASSERT_IS_VALID_PTR(p) GUI_DEBUG_ERROROUT_IF(p->DebugId != OBJECT_ID, "EDIT.C: Wrong handle type or Object not init'ed")
  #define INIT_ID(p)   p->DebugId = OBJECT_ID
  #define DEINIT_ID(p) p->DebugId = 0
#else
  #define ASSERT_IS_VALID_PTR(p)
  #define INIT_ID(p)
  #define DEINIT_ID(p)
#endif

/*********************************************************************
*
*       Object definition
*
**********************************************************************
*/

typedef struct {
  WIDGET Widget;
  I16 Sel;                        /* current selection */
  GUI_ARRAY Handles;
  WM_SCROLL_STATE ScrollStateV;
  WM_SCROLL_STATE ScrollStateH;
  const GUI_FONT* pFont;
  GUI_COLOR aBackColor[3];
  GUI_COLOR aTextColor[3];
  WM_HWIN hOwner;
  #if GUI_DEBUG_LEVEL >1
    int DebugId;
  #endif  
  U8 Flags;
} LISTBOX_Obj;


/*********************************************************************
*
*       Private (module internal) functions
*
**********************************************************************
*/
int  LISTBOX__GetNumItems    (const LISTBOX_Obj* pObj);
void LISTBOX__UpdateScrollers(LISTBOX_Handle hObj);

#endif /* GUI_WINSUPPORT */

#else                            /* Avoid problems with empty object modules */
  void LISTBOX_C(void) {}
#endif