CHECKBOX

#include "DIALOG.h"
#include "stdlib.h"


/*********************************************************************
*
*       Externals
*
**********************************************************************
*/


/*********************************************************************
*
*       Defines
*
**********************************************************************
*/
#define RADIUS  50


/*********************************************************************
*
*       Static data
*
**********************************************************************
*/


/*********************************************************************
*
*       Static code
*
**********************************************************************
*/
/*********************************************************************
*
*       _cbBk
*/
static void _cbBk(WM_MESSAGE * pMsg) {
  WM_HWIN   hItem;
  int       NCode;
  int       Id;
  int       State;
  int       xPos;
  int       yPos;
  GUI_COLOR aColor[] = {GUI_RED, GUI_GREEN, GUI_BLUE, GUI_MAGENTA, GUI_CYAN, GUI_YELLOW };
  int       Index;


  switch (pMsg->MsgId) {
  case WM_PAINT:
    //
    // Clear with white
    //
    GUI_SetBkColor(GUI_WHITE);
    GUI_Clear();
    //
    // Calculate the center of the screen
    //
    xPos  = LCD_GetXSize() >> 1;
    yPos  = LCD_GetYSize() >> 1;
    //
    // get 'random' index and set a foreground color to draw the circles with
    //
    Index = rand() % GUI_COUNTOF(aColor);
    GUI_SetColor(aColor[Index]);
    //
    // Get handle of the CHECKBOX and get its state
    //
    hItem = WM_GetDialogItem(pMsg->hWin, GUI_ID_CHECK0);
    State = CHECKBOX_GetState(hItem);
    if (State == 0) {
      GUI_DrawCircle(xPos, yPos, RADIUS);  // Only a cricle outline
    } else {
      GUI_FillCircle(xPos, yPos, RADIUS);  // A circle filled with color
    }
    break;
  case WM_NOTIFY_PARENT:
    //
    // Check who sends a message and what type of message
    //
    Id    = WM_GetId(pMsg->hWinSrc);
    NCode = pMsg->Data.v;
    switch (Id) {
    case GUI_ID_CHECK0:
      switch (NCode) {
      case WM_NOTIFICATION_VALUE_CHANGED:
        //
        // Each time the state of the CHECKBOX changes we mark the desktop window
        // as invalid, next time GUI_Delay() (or GUI_Exec()) gets called the window
        // gets redrawn.
        //
        WM_InvalidateWindow(WM_HBKWIN);
        break;
      }
      break;
    }
    break;
  default:
    WM_DefaultProc(pMsg);
    break;
  }
}


/*********************************************************************
*
*       Public code
*
**********************************************************************
*/
/*********************************************************************
*
*       MainTask
*/
void MainTask(void) {
  WM_HWIN hCheckbox;
  CHECKBOX_SKINFLEX_PROPS Props;


  GUI_Init();
  //
  // Set a callback for the desktop window, this will manage the
  // drawing and handles the notifications send from the CHECKBOX.
  //
  WM_SetCallback(WM_HBKWIN, _cbBk);
  //
  // Create a CHECKBOX as child of the desktop window (WM_HBKWIN).
  //
  hCheckbox = CHECKBOX_CreateEx(10, 10, 80, 20, WM_HBKWIN, WM_CF_SHOW, 0, GUI_ID_CHECK0);
  while (1) {
    GUI_Delay(100);
  }
}


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