/*********************************************************************
*                SEGGER Microcontroller GmbH & Co. KG                *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*        (c) 1996 - 2017  SEGGER Microcontroller GmbH & Co. KG       *
*                                                                    *
*        Internet: www.segger.com    Support:  support@segger.com    *
*                                                                    *
**********************************************************************

** emWin V5.40 - Graphical user interface for embedded applications **
All  Intellectual Property rights  in the Software belongs to  SEGGER.
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 the following terms:

The  software has  been licensed  to STMicroelectronics International
N.V. a Dutch company with a Swiss branch and its headquarters in Plan-
les-Ouates, Geneva, 39 Chemin du Champ des Filles, Switzerland for the
purposes of creating libraries for ARM Cortex-M-based 32-bit microcon_
troller products commercialized by Licensee only, sublicensed and dis_
tributed under the terms and conditions of the End User License Agree_
ment supplied by STMicroelectronics International N.V.
Full source code is available at: www.segger.com

We appreciate your understanding and fairness.
----------------------------------------------------------------------
File        : LISTBOX_Private.h
Purpose     : Private LISTBOX include
--------------------END-OF-HEADER-------------------------------------
*/

/**
  ******************************************************************************
  * @attention
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */
  
#ifndef LISTBOX_PRIVATE_H
#define LISTBOX_PRIVATE_H

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

#if GUI_WINSUPPORT

/*********************************************************************
*
*       Defines
*
**********************************************************************
*/
#define LISTBOX_ITEM_SELECTED (1 << 0)
#define LISTBOX_ITEM_DISABLED (1 << 1)

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

typedef struct {
  U16  xSize, ySize;
  I32  ItemPosY;
  U8   Status;
  char acText[1];
} LISTBOX_ITEM;

typedef struct {
  const GUI_FONT * pFont;
  U16              ScrollStepH;
  GUI_COLOR aBackColor[4];
  GUI_COLOR aTextColor[4];
  GUI_COLOR aScrollbarColor[3];
  I16 Align;
  U8  FixedScrollMode;
} LISTBOX_PROPS;

typedef struct {
  WIDGET Widget;
  GUI_ARRAY ItemArray;
  WIDGET_DRAW_ITEM_FUNC* pfDrawItem;
  WM_SCROLL_STATE ScrollStateV;
  WM_SCROLL_STATE ScrollStateH;
  LISTBOX_PROPS Props;
  WM_HWIN hOwner;
  I16 Sel;                        /* current selection */
  U8 Flags;
  U8  ScrollbarWidth;
  U16 ItemSpacing;
  U16 ContentSizeX;
  U8  FixedScrollPos;
} LISTBOX_Obj;

/*********************************************************************
*
*       Macros for internal use
*
**********************************************************************
*/
#if GUI_DEBUG_LEVEL >= GUI_DEBUG_LEVEL_CHECK_ALL
  #define LISTBOX_INIT_ID(p) p->Widget.DebugId = LISTBOX_ID
#else
  #define LISTBOX_INIT_ID(p)
#endif

#if GUI_DEBUG_LEVEL >= GUI_DEBUG_LEVEL_CHECK_ALL
  LISTBOX_Obj * LISTBOX_LockH(LISTBOX_Handle h);
  #define LISTBOX_LOCK_H(h)   LISTBOX_LockH(h)
#else
  #define LISTBOX_LOCK_H(h)   (LISTBOX_Obj *)GUI_LOCK_H(h)
#endif

/*********************************************************************
*
*       Private (module internal) data
*
**********************************************************************
*/

extern LISTBOX_PROPS LISTBOX_DefaultProps;

/*********************************************************************
*
*       Private (module internal) functions
*
**********************************************************************
*/
unsigned     LISTBOX__GetNumItems           (const LISTBOX_Obj * pObj);
const char * LISTBOX__GetpStringLocked      (LISTBOX_Handle hObj, int Index, LISTBOX_ITEM ** ppItem);
void         LISTBOX__InvalidateInsideArea  (LISTBOX_Handle hObj);
void         LISTBOX__InvalidateItem        (LISTBOX_Handle hObj, int Sel);
void         LISTBOX__InvalidateItemAndBelow(LISTBOX_Handle hObj, int Sel);
void         LISTBOX__InvalidateItemSize    (const LISTBOX_Obj * pObj, unsigned Index);
void         LISTBOX__SetScrollbarColor     (LISTBOX_Handle hObj, const LISTBOX_Obj * pObj);
void         LISTBOX__SetScrollbarWidth     (LISTBOX_Handle hObj, const LISTBOX_Obj * pObj);
void         LISTBOX__AddSize               (LISTBOX_Obj * pObj, int Index);

#endif /* GUI_WINSUPPORT */

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

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