按钮中有多个位图如何自动更新

aadwacf · 发表于 2020-4-1 15:57:28

界面做个电量显示图标，根据采集的AD数值来更换图片，将图片设置为透明模式显示在按钮上，但是每次更新后要点击按钮位置才会更新图片，怎么样才能直接更新图片？

//设置窗口，按键位置大小
static const GUI_WIDGET_CREATE_INFO _aDialogCreate[] = {
  { WINDOW_CreateIndirect, "Window", ID_WINDOW_0, 0, 0, 272, 480, 0, 0x0, 0 },
  { BUTTON_CreateIndirect, "Button", ID_BUTTON_0, 30, 450, 80, 30, 0, 0x0, 0 },
  { BUTTON_CreateIndirect, "Button", ID_BUTTON_1, 160, 450, 80, 30, 0, 0x0, 0 },
  { BUTTON_CreateIndirect, "Button", ID_BUTTON_2, 230, 10, 40, 20, 0, 0x0, 0 },//电量图标

};
extern u16 adcx;
//按钮位图设置
static void _cbButton(WM_MESSAGE * pMsg)
{
      WM_HWIN  hWin;
      hWin  = pMsg->hWin;
      switch (pMsg->MsgId)
      {
            case WM_PAINT:
                              GUI_SetAlpha(0x100);
                              if(adcx>0x092E)                      //>2350
                              {GUI_DrawBitmap(&bmp_dianliang4, 0, 0);}
                              else if(adcx>0X0866&&adcx<0x092E)    //2150-2350
                              {GUI_DrawBitmap(&bmp_dianliang3, 0, 0);}
                              else if(adcx>0X0708&&adcx<0X0866)    //1800-2150
                              {GUI_DrawBitmap(&bmp_dianliang2, 0, 0);}
                              else                               //<1800
                              {GUI_DrawBitmap(&bmp_dianliang1, 0, 0);}
                              GUI_SetAlpha(0);
            break;
            default:
                     BUTTON_Callback(pMsg);
      }
}
//位图刷新
static void DianLiang_Update(WM_MESSAGE * pMsg)
{
WM_SetHasTrans(WM_GetDialogItem(pMsg->hWin, ID_BUTTON_2));
WM_SetCallback(WM_GetDialogItem(pMsg->hWin, ID_BUTTON_2), _cbButton);
};
//窗口内容
static void _cbDialog(WM_MESSAGE * pMsg) {
  WM_HWIN hItem;
  int    NCode;
  int    Id;
GUI_RECT rRTC={230, 10, 170, 20};  //设置刷新区域
WM_HWIN hWin = pMsg->hWin;
  switch (pMsg->MsgId) {
      case WM_TIMER:
      WM_InvalidateRect(hWin, &rRTC);    //指定区域
      DianLiang_Update(pMsg);                //更新电量图标
      WM_RestartTimer(pMsg->Data.v,100);       //10MS进入一次
         break;
      //初始化定义
  case WM_INIT_DIALOG:
  hItem = WM_GetDialogItem(pMsg->hWin, ID_WINDOW_0);
hItem = WM_GetDialogItem(pMsg->hWin, ID_BUTTON_0);
BUTTON_SetFont(hItem, &GUI_FontHZ16);
BUTTON_SetText(hItem, "查看");

hItem = WM_GetDialogItem(pMsg->hWin, ID_BUTTON_1);
BUTTON_SetFont(hItem, &GUI_FontHZ16);
BUTTON_SetText(hItem, "选项");
//电量图标
hItem = WM_GetDialogItem(pMsg->hWin, ID_BUTTON_2);
WM_SetHasTrans(hItem);
WM_SetCallback(hItem, _cbButton);
break;