widget_sortedlistview.c

ucgui的3.98版本的源代码

/*
*********************************************************************************************************
*                                             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        : WIDGET_SortedListview.c
Purpose     : Example demonstrating the use of a sorted LISTVIEW
----------------------------------------------------------------------
*/

#include <string.h>
#include <stdlib.h>
#include <stddef.h>
#include "DIALOG.h"
#include "LISTVIEW.h"

/*********************************************************************
*
*       Types
*
**********************************************************************
*/
/*********************************************************************
*
*       Type for column properties
*/
typedef struct {
  char * pText;
  int    Width;
  int    Align;
  int (* fpCompare)(const void * p0, const void * p1);
} COL_PROP;

/*********************************************************************
*
*       Static Data
*
**********************************************************************
*/
/*********************************************************************
*
*       Dialog ressource
*/
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
  { FRAMEWIN_CreateIndirect, "Sorted listview sample", 0,     10,  55, 300, 175 },
  { LISTVIEW_CreateIndirect, NULL,         GUI_ID_LISTVIEW0,  10,  10, 200, 140 },
  { BUTTON_CreateIndirect,   "Add row",    GUI_ID_BUTTON0,   220,  10,  65,  20 },
  { BUTTON_CreateIndirect,   "Insert row", GUI_ID_BUTTON1,   220,  35,  65,  20 },
  { BUTTON_CreateIndirect,   "Delete row", GUI_ID_BUTTON2,   220,  60,  65,  20 },
  { BUTTON_CreateIndirect,   "OK",         GUI_ID_OK,        220,  85,  65,  20 },
  { RADIO_CreateIndirect,    0,            GUI_ID_RADIO0,    220, 115,  70,  40, 0, 0x1002 },
};

/*********************************************************************
*
*       Array of column propperties
*/
static const COL_PROP _aColProps[] = {
  { "Name",    70, GUI_TA_LEFT,    LISTVIEW_CompareText},
  { "Code",    50, GUI_TA_HCENTER, LISTVIEW_CompareText},
  { "Balance", 60, GUI_TA_RIGHT,   LISTVIEW_CompareDec }
};

/*********************************************************************
*
*       Static routines
*
**********************************************************************
*/
/*********************************************************************
*
*       _AddRow
*
* Purpose:
*   Inserts or adds a new row of data to the given LISTVIEW
*
* Parameter:
*   hItem  - Handle of LISTVIEW widget
*   Insert - 1 for inserting a row,0 for adding a row
*/
static int _AddRow(WM_HWIN hItem, int Insert) {
  int i, r, Len;
  char * pText[3];
  char acText[3][10] = {0};
  char acBuffer[6];
  /* Create contents of name field */
  strcpy(acText[0], "Name ");
  strcpy(acBuffer, _itoa(LISTVIEW_GetNumRows(hItem), acBuffer, 10));
  Len = strlen(acBuffer);
  for (i = Len; i < 4; i++) {
    strcat(acText[0], " ");
  }
  strcat(acText[0], acBuffer);
  /* Create contents of code field */
  for (i = 0; i < 5; i++) {
    acText[1][i] = rand() % 26 + 'A';
  }
  /* Create contents of balance field */
  strcpy(acText[2], _itoa(((rand() % 10000) - 5000), acText[2], 10));
  /* Fill pointer array */
  for (i = 0; i < 3; i++) {
    pText[i] = acText[i];
  }
  /* Add/Insert row */
  if (Insert) {
    r = LISTVIEW_InsertRow(hItem, 0, pText);
  } else {
    r = LISTVIEW_AddRow(hItem, pText);
  }
  return r;
}

/*********************************************************************
*
*       _cbDialog
*
* Purpose:
*   Callback routine of dialog
*/
static void _cbDialog(WM_MESSAGE * pMsg) {
  WM_HWIN hDlg, hItem;
  int Id, NCode, i;
  hDlg = pMsg->hWin;
  switch (pMsg->MsgId) {
  case WM_INIT_DIALOG:
    /* Set listview properties */
    hItem = WM_GetDialogItem(hDlg, GUI_ID_LISTVIEW0);
    HEADER_SetDragLimit(LISTVIEW_GetHeader(hItem), 1);
    LISTVIEW_SetAutoScrollV(hItem, 1);
    LISTVIEW_SetGridVis(hItem, 1);
    LISTVIEW_SetRBorder(hItem, 5);
    LISTVIEW_SetLBorder(hItem, 5);
    for (i = 0; i < 3; i++) {
      LISTVIEW_AddColumn(hItem, _aColProps[i].Width, _aColProps[i].pText, _aColProps[i].Align);
      LISTVIEW_SetCompareFunc(hItem, i, _aColProps[i].fpCompare);
    }
    LISTVIEW_EnableSort(hItem);
    for (i = 0; i < 6; i++) {
      if (_AddRow(hItem, 1)) {
        break;
      }
    }
    /* Set radio button text */
    hItem = WM_GetDialogItem(hDlg, GUI_ID_RADIO0);
    RADIO_SetText(hItem, "Sorted",   0);
    RADIO_SetText(hItem, "Unsorted", 1);
    break;
  case WM_NOTIFY_PARENT:
    Id    = WM_GetId(pMsg->hWinSrc);
    NCode = pMsg->Data.v;
    switch (NCode) {
    case WM_NOTIFICATION_VALUE_CHANGED:
      hItem = WM_GetDialogItem(hDlg, GUI_ID_LISTVIEW0);
      switch (Id) {
      case GUI_ID_RADIO0:
        /* Enable/Disable sorting */
        switch (RADIO_GetValue(WM_GetDialogItem(hDlg, GUI_ID_RADIO0))) {
        case 0:
          LISTVIEW_EnableSort(WM_GetDialogItem(hDlg, GUI_ID_LISTVIEW0));
          break;
        case 1:
          LISTVIEW_DisableSort(WM_GetDialogItem(hDlg, GUI_ID_LISTVIEW0));
          break;
        }
        break;
      }
      break;
    case WM_NOTIFICATION_RELEASED:
      switch (Id) {
      case GUI_ID_BUTTON0:
        /* Add new row */
        hItem = WM_GetDialogItem(hDlg, GUI_ID_LISTVIEW0);
        _AddRow(hItem, 0);
        break;
      case GUI_ID_BUTTON1:
        /* Insert new row */
        hItem = WM_GetDialogItem(hDlg, GUI_ID_LISTVIEW0);
        i = LISTVIEW_GetSelUnsorted(hItem);
        _AddRow(hItem, 1);
        if (i >= 0) {
          LISTVIEW_SetSelUnsorted(hItem, i + 1);
        }
        break;
      case GUI_ID_BUTTON2:
        /* Delete row */
        hItem = WM_GetDialogItem(hDlg, GUI_ID_LISTVIEW0);
        i = LISTVIEW_GetSelUnsorted(hItem);
        LISTVIEW_DeleteRow(hItem, (i >= 0) ? i : 0);
        break;
      case GUI_ID_OK:
        /* End dialog */
        GUI_EndDialog(hDlg, 0);
        break;
      }
      break;
    }
    break;
  default:
    WM_DefaultProc(pMsg);
  }
}

/*********************************************************************
*
*       _cbBkWin
*
* Purpose:
*   Callback routine of desktop window
*/
static void _cbBkWin(WM_MESSAGE * pMsg) {
  switch (pMsg->MsgId) {
  case WM_PAINT:
    GUI_Clear();
    GUI_SetFont(&GUI_Font24_ASCII);
    GUI_DispStringHCenterAt("WIDGET_SortedListview - Sample", 160, 5);
    GUI_SetFont(&GUI_Font10_ASCII);
    GUI_DispStringHCenterAt("Please touch the header of the LISTVIEW for sorting...", 160, 35);
    break;
  default:
    WM_DefaultProc(pMsg);
  }
}

/*********************************************************************
*
*       Public routines
*
**********************************************************************
*/
/*********************************************************************
*
*       MainTask
*/
void MainTask(void) {
  GUI_Init();
  #if GUI_SUPPORT_MEMDEV
    WM_SetCreateFlags(WM_CF_MEMDEV);
  #endif
  GUI_CURSOR_Show();
  WM_SetCallback(WM_HBKWIN, _cbBkWin);
  while (1) {
    GUI_ExecDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), &_cbDialog, 0, 0, 0);
    GUI_Delay(1000);
  }
}

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