www.pudn.com > uC-GUI-V3-98.zip > DIALOG_Radio.c

/* 
********************************************************************************************************* 
*                                             uC/GUI V3.98 
*                        Universal graphic software for embedded applications 
* 
*                       (c) Copyright 2002, Micrium Inc., Weston, FL 
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH 
* 
*              µC/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        : DIALOG_Radio.c 
Purpose     : Example demonstrating the use of a RADIO widget 
---------------------------------------------------------------------- 
*/ 
 
#include  
#include "GUI.h" 
#include "DIALOG.h" 
 
/********************************************************************* 
* 
*       static data 
* 
********************************************************************** 
*/ 
 
/********************************************************************* 
* 
*       Dialog resource 
* 
* This table conatins the info required to create the dialog. 
* It has been created manually, but could also be created by a GUI-builder. 
*/ 
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = { 
  { FRAMEWIN_CreateIndirect, "Radio button sample", 0,        30,  70, 260, 100, FRAMEWIN_CF_MOVEABLE }, 
  { RADIO_CreateIndirect,     NULL,           GUI_ID_RADIO0,   5,  10,   0,   0,   0,  3 }, 
  { TEXT_CreateIndirect,     "Suspend",       GUI_ID_TEXT0,   25,  10,  70,  20, TEXT_CF_LEFT }, 
  { TEXT_CreateIndirect,     "Shut down",     GUI_ID_TEXT1,   25,  30,  70,  20, TEXT_CF_LEFT }, 
  { TEXT_CreateIndirect,     "Restart after", GUI_ID_TEXT2,   25,  50,  70,  20, TEXT_CF_LEFT }, 
  { TEXT_CreateIndirect,     "seconds",       GUI_ID_TEXT3,  130,  50,  70,  20, TEXT_CF_LEFT }, 
  { EDIT_CreateIndirect,     "200",           GUI_ID_EDIT0,   95,  47,  30,  19, 0, 3}, 
  { BUTTON_CreateIndirect,   "OK",            GUI_ID_OK,     180,  10,  60,  20 }, 
  { BUTTON_CreateIndirect,   "Cancel",        GUI_ID_CANCEL, 180,  40,  60,  20 } 
}; 
 
/********************************************************************* 
* 
*       static code 
* 
********************************************************************** 
*/ 
 
/********************************************************************* 
* 
*       _cbBkWindow 
*/ 
static void _cbBkWindow(WM_MESSAGE* pMsg) { 
  switch (pMsg->MsgId) { 
  case WM_PAINT: 
    GUI_SetBkColor(GUI_RED); 
    GUI_Clear(); 
    GUI_SetColor(GUI_WHITE); 
    GUI_SetFont(&GUI_Font24_ASCII); 
    GUI_DispStringHCenterAt("DIALOG_Radio - Sample", 160, 5); 
    break; 
  default: 
    WM_DefaultProc(pMsg); 
  } 
} 
 
/********************************************************************* 
* 
*       _cbCallback 
*/ 
static void _cbCallback(WM_MESSAGE * pMsg) { 
  int Sel, NCode, Id; 
  WM_HWIN hDlg, hItem; 
  GUI_PID_STATE * pState; 
  hDlg = pMsg->hWin; 
  switch (pMsg->MsgId) { 
    case WM_INIT_DIALOG: 
      hItem = WM_GetDialogItem(hDlg, GUI_ID_EDIT0); 
      EDIT_SetDecMode(hItem, 30,   0, 999, 0, 0);    /* Select decimal mode */ 
      WM_DisableWindow(hItem); 
      break; 
    case WM_KEY: 
      switch (((WM_KEY_INFO*)(pMsg->Data.p))->Key) { 
        case GUI_KEY_ESCAPE: 
          GUI_EndDialog(hDlg, 1); 
          break; 
        case GUI_KEY_ENTER: 
          GUI_EndDialog(hDlg, 0); 
          break; 
      } 
      break; 
    case WM_TOUCH_CHILD: 
      Id = WM_GetId(pMsg->hWinSrc);      /* Id of widget */ 
      switch (Id) { 
        case GUI_ID_TEXT0: 
        case GUI_ID_TEXT1: 
        case GUI_ID_TEXT2: 
          pState = (GUI_PID_STATE *)((WM_MESSAGE *)pMsg->Data.p)->Data.p; 
          if (pState) { 
            if (pState->Pressed) { 
              WM_HWIN hRadio = WM_GetDialogItem(hDlg, GUI_ID_RADIO0); 
              RADIO_SetValue(hRadio, Id - GUI_ID_TEXT0);    /* Use the text beside the radio button to  
                                                               set the value of the radio button */ 
            } 
          } 
          break; 
      } 
      break; 
    case WM_NOTIFY_PARENT: 
      Id    = WM_GetId(pMsg->hWinSrc);      /* Id of widget */ 
      NCode = pMsg->Data.v;                 /* Notification code */ 
      switch (NCode) { 
        case WM_NOTIFICATION_RELEASED:      /* React only if released */ 
          switch (Id) { 
            case GUI_ID_OK: 
              GUI_EndDialog(hDlg, 0); 
              break; 
            case GUI_ID_CANCEL: 
              GUI_EndDialog(hDlg, 1); 
              break; 
          } 
          break; 
        case WM_NOTIFICATION_VALUE_CHANGED: 
          hItem = WM_GetDialogItem(hDlg, GUI_ID_RADIO0); 
          Sel   = RADIO_GetValue(hItem); 
          hItem = WM_GetDialogItem(hDlg, GUI_ID_EDIT0); 
          WM_SetEnableState(hItem, Sel == 2);       
          break; 
      } 
      break; 
    default: 
      WM_DefaultProc(pMsg); 
  } 
} 
 
/********************************************************************* 
* 
*       MainTask 
* 
*       Demonstrates a dialog box 
* 
********************************************************************** 
*/ 
 
void MainTask(void) { 
  GUI_Init(); 
  WM_SetCallback(WM_HBKWIN, &_cbBkWindow); 
  WM_SetCreateFlags(WM_CF_MEMDEV);  /* Use memory devices on all windows to avoid flicker */ 
  while (1) { 
    GUI_ExecDialogBox(_aDialogCreate, GUI_COUNTOF(_aDialogCreate), &_cbCallback, 0, 0, 0); 
    GUI_Delay(1000); 
  } 
}