PROGBAR - Custom (Sample)

PROGBAR_Custom.c
File(s) required	PROGBAR_Custom.c
Runs in simulation	Yes
Runs on target	Yes
Download	PROGBAR_Custom.c

This sample demonstrates custom drawing of a PROGBAR widget.

Code

/*********************************************************************
*                    SEGGER Microcontroller GmbH                     *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*        (c) 1996 - 2020  SEGGER Microcontroller GmbH                *
*                                                                    *
*        Internet: www.segger.com    Support:  support@segger.com    *
*                                                                    *
**********************************************************************

** emWin V6.10 - Graphical user interface for embedded applications **
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  a license  and should  not be  re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File        : PROGBAR_Custom.c
Purpose     : Sample that demonstrates how to give a PROGBAR widget
              a custom appearance.
Requirements: WindowManager - (x)
              MemoryDevices - ( )
              AntiAliasing  - ( )
              VNC-Server    - ( )
              PNG-Library   - ( )
              TrueTypeFonts - ( )
---------------------------END-OF-HEADER------------------------------
*/

#include "DIALOG.h"
#include <stdio.h>

/*********************************************************************
*
*       Static code
*
**********************************************************************
*/
/*********************************************************************
*
*       _cbProgbar
*/
static void _cbProgbar(WM_MESSAGE * pMsg) {
  GUI_RECT Rect;
  float    ValueF;
  int      Value;
  char     acBuffer[16];

  switch (pMsg->MsgId) {
  case WM_PAINT:
    GUI_SetBkColor(GUI_WHITE);
    GUI_Clear();
    //
    // Draw progress bar
    //
    WM_GetClientRect(&Rect);
    GUI_SetColor(GUI_BLACK);
    GUI_AA_DrawRoundedRectEx(&Rect, 3);
    Value = PROGBAR_GetValue(pMsg->hWin);
    ValueF = Value / 100.0F;
    sprintf(acBuffer, "Progress: %d%%", Value);
    Rect.x0 += 2;
    Rect.y0 += 2;
    Rect.x1 -= 2;
    Rect.y1 -= 2;
    Rect.x1 = Rect.x1 * (ValueF);
    GUI_SetColor(GUI_GRAY_9A);
    GUI_AA_FillRoundedRectEx(&Rect, 1);
    WM_GetClientRect(&Rect);
    Rect.x0 += 2;
    Rect.y0 += 2;
    Rect.x1 -= 2;
    Rect.y1 -= 2;
    GUI_SetColor(GUI_BLACK);
    GUI_SetTextMode(GUI_TM_TRANS);
    GUI_SetFont(&GUI_Font16B_1);
    GUI_DispStringInRect(acBuffer, &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER);
    break;
  default:
    PROGBAR_Callback(pMsg);
    break;
  }
}

/*********************************************************************
*
*       Public code
*
**********************************************************************
*/
/*********************************************************************
*
*       MainTask
*/
void MainTask(void) {
  PROGBAR_Handle hProg;
  int            Cnt;

  //
  // Init GUI, clear background and enable multi-buffering
  //
  GUI_Init();
  WM_MULTIBUF_Enable(1);
  GUI_SetBkColor(GUI_WHITE);
  GUI_Clear();
  Cnt = 0;
  //
  // Create PROGBAR handle
  //
  hProg = PROGBAR_CreateEx(10, 10, 200, 30, WM_HBKWIN, WM_CF_SHOW, PROGBAR_CF_HORIZONTAL, GUI_ID_PROGBAR0);
  //
  // Set custom callback routine
  //
  WM_SetCallback(hProg, _cbProgbar);
  //
  // Continuously fill progress bar
  //
  while (1) {
    //
    // Fill the progress bar
    //
    if (Cnt == 100) {
      Cnt = 0;
    }
    if (Cnt < 100) {
      Cnt++;
    }
    PROGBAR_SetValue(hProg, Cnt);
    //
    // Make sure the entire PROGBAR gets redrawn
    //
    WM_InvalidateWindow(hProg);

    GUI_Delay(100);
  }
}

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