wmredraw.c

Turbo C 3.0 + UCOS2 + UCGUI PC学习版本

/*
*********************************************************************************************************
*                                                uC/GUI
*                        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        : WM_Redraw.c
Purpose     : Demonstrates the redrawing mechanism of the window manager
----------------------------------------------------------------------
*/
#ifndef DEMOCHOICE

#include "headers.h"

#include "GUI.H"
#include "graphics.h"

void DrawInit (void)
{
 int driver=DETECT,graphmode;
 registerfarbgidriver (EGAVGA_driver_far);
 initgraph (&driver,&graphmode,"");
}
#endif
/*******************************************************************
*
*            Callback routine for background window
*
********************************************************************
*/

static void cbBackgroundWin(WM_MESSAGE* pMsg) {
  switch (pMsg->MsgId) {
  case WM_PAINT:
    GUI_Clear();
  default:
    WM_DefaultProc(pMsg);
  }
}

/*******************************************************************
*
*            Callback routine for foreground window
*
********************************************************************
*/

static void cbForegroundWin(WM_MESSAGE* pMsg) {
  switch (pMsg->MsgId) {
  case WM_PAINT:
    GUI_SetBkColor(GUI_GREEN);
    GUI_Clear();
    GUI_DispString("Foreground window");
    break;
  default:
    WM_DefaultProc(pMsg);
  }
}

/*******************************************************************
*
*         Demonstrates the redraw mechanism of emWinGSC
*
********************************************************************
*/
#define DELAY 200

void DemoRedraw(void *pData) {
  GUI_HWIN hWnd;

  GUI_Init();
  while(1) {
    /* Create foreground window */
    hWnd = WM_CreateWindow(10, 10, 100, 100, WM_CF_SHOW, cbForegroundWin, 0);
    /* Show foreground window */
    GUI_Delay(DELAY);
    /* Delete foreground window */
    WM_DeleteWindow(hWnd);
    GUI_DispStringAt("Background of window has not been redrawn", 10, 10);
    /* Wait a while, background will not be redrawn */
    GUI_Delay(DELAY);
    //GUI_Clear();
    /* Set callback for Background window */
    //WM_SetCallback(WM_HBKWIN, cbBackgroundWin);
    /* Create foreground window */
    hWnd = WM_CreateWindow(50, 50, 150, 150,WM_CF_SHOW, cbForegroundWin, 0);
    /* Show foreground window */
    GUI_Delay(DELAY);
    /* Delete foreground window */
    WM_DeleteWindow(hWnd);
    /* Wait a while, background will be redrawn */
    GUI_Delay(DELAY);
    /* Delete callback for Background window */
    //WM_SetCallback(WM_HBKWIN, 0);
    GUI_Delay(DELAY);
 }
}

/*******************************************************************
*
*                 main
*
********************************************************************
*/
#ifndef DEMOCHOICE
void main(void) {
  DrawInit ();

  OSInit();                                              /* Initialize uC/OS-II                      */
  PC_DOSSaveReturn();                                    /* Save environment to return to DOS        */
  PC_VectSet(uCOS, OSCtxSw);                             /* Install uC/OS-II's context switch vector */

  OS_ENTER_CRITICAL();
  PC_VectSet(0x08, OSTickISR);                           /* Install uC/OS-II's clock tick ISR        */
  PC_SetTickRate(OS_TICKS_PER_SEC);                      /* Reprogram tick rate                      */
  OS_EXIT_CRITICAL();

  OSTaskCreateExt(DemoRedraw,(void *)1,&TestTask1Stk[TaskStkLeath-1],1,0,&TestTask1Stk[0],10*1024,(void *)0,OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);
  OSTaskCreateExt(TestTask2,(void *)2,&TestTask2Stk[TaskStkLeath-1],2,0,&TestTask2Stk[0],1024,(void *)0,OS_TASK_OPT_STK_CHK | OS_TASK_OPT_STK_CLR);

  OSStart();

  while (1);
}
#endif