C++ GUI_DispStringHCenterAt函数代码示例

/*********************************************************************
*
*       _DrawScreen
*/
static void _DrawScreen(void) {
  GUI_RECT Rect;
  int yd;

  GUI_DrawBitmap(&_bmSeggerLogo_50x25, 10, 10);
  GUI_SetFont(GUI_FONT_20B_ASCII);
  GUI_DispStringHCenterAt("Antialiased text sample", 190, 5);
  GUI_SetFont(GUI_FONT_13_ASCII);
  GUI_DispStringHCenterAt("Shows antialiased text on different backgrounds.", 190, 25);
  Rect.x0 = 0;
  Rect.y0 = 43;
  Rect.x1 = 59;
  Rect.y1 = Rect.y0 + 95;
  yd = (Rect.y1 - Rect.y0) / 3;
  //
  // 4 bit antialiasing sample
  //
  _DrawText("Antialiased text\n (4 bpp)", &Rect);
  GUI_SetFont(&_FontAA4_32);
  _DrawSample(&Rect, yd);
  //
  // 2 bit antialiasing sample
  //
  GUI_MoveRect(&Rect, 0, 101);
  _DrawText("Antialiased text\n (2 bpp)", &Rect);
  GUI_SetFont(&_FontAA2_32);
  _DrawSample(&Rect, yd);
}

/*********************************************************************
*
*       GUIDEMO_ShowIntro
*
*   This function has to be called by every sample
*/
void GUIDEMO_ShowIntro(const char * acTitle, const char * acDescription) {
  int xSize, ySize, xCenter, yCenter, FontDistY, TimeWait, i;

  xSize   = LCD_GetXSize();
  ySize   = LCD_GetYSize();
  xCenter = xSize >> 1;
  yCenter = ySize >> 1;
  GUIDEMO_HideInfoWin();
  GUIDEMO_ShowControlWin();
  GUI_Exec();
  GUIDEMO_DrawBk(1);
  GUI_SetColor(GUI_WHITE);
  //
  // Title
  //
  GUI_SetTextMode(GUI_TM_TRANS);
  GUI_SetFont(&GUI_FontRounded22);
  GUI_DispStringHCenterAt(acTitle, xCenter, 60);
  //
  // Description
  //
  GUI_SetFont(&GUI_FontSouvenir18);
  FontDistY = GUI_GetFontDistY();
  GUI_DispStringHCenterAt(acDescription, xCenter, yCenter - FontDistY + 10);
  //
  // Determine time to wait
  //
  i = 0;
  while (acDescription[i]) {
    i++;
  }
  TimeWait = i * 80;
  GUIDEMO_Wait(TimeWait);
}

/*******************************************************************
*
*       _DemoHardkey
*
* Function description
*   Demonstrates HARDKEY simulation with a listbox
*/
static void _DemoHardkey(void) {
  LISTBOX_Handle hListBox;

  GUI_SetBkColor(GUI_BLACK);
  GUI_Clear();
  GUI_SetColor(GUI_WHITE);
  GUI_SetTextAlign(GUI_TA_HCENTER);
  GUI_SetFont(&GUI_Font24_ASCII);
  GUI_DispStringAt("Hardkey - Sample", 160, 5);
  GUI_SetFont(&GUI_Font8x8);
  GUI_DispStringHCenterAt("Exit",  65, 230);
  GUI_DispStringHCenterAt("Up",   160, 230);
  GUI_DispStringHCenterAt("Down", 255, 230);
  /* Create the listbox */
  hListBox = LISTBOX_Create(_aListBox, 100, 100, 120, 75, WM_CF_SHOW);
  WM_SetFocus(hListBox);
  LISTBOX_SetFont(hListBox, &GUI_Font13B_1);
  SCROLLBAR_CreateAttached(hListBox, SCROLLBAR_CF_VERTICAL);
  /* Handle the listbox */
  while (!_Ready) {
    GUI_Delay(10);
  }
  /* Delete listbox widget */
  LISTBOX_Delete(hListBox);
  GUI_Clear();
}

void GUIDEMO_ShowIntro(const char * s, const char * sExp) {
  GUI_CONTEXT ContextOld;
  GUI_SaveContext(&ContextOld);
  _sInfo = s;
  _sExplain = sExp;
  GUI_SetDefault();
  GUIDEMO_HideInfoWin();
  GUI_SetBkColor(GUI_BLUE);
  GUI_SetColor(GUI_WHITE);
  GUI_Clear();
  //GUI_SetFont(&GUI_FontComic18B_ASCII);
  GUI_SetFont(&GUI_FontHZ12);
  GUI_DispStringHCenterAt(s, LCD_GET_XSIZE() / 2, LCD_GET_YSIZE() / 3 - 10);
  if (_sExplain) {
    GUI_SetFont(&GUI_Font8_ASCII);
    GUI_DispStringHCenterAt(_sExplain, LCD_GET_XSIZE() / 2, LCD_GET_YSIZE() / 2 - 10);
  }
  GUIDEMO_Delay(_sExplain ? 2000 : 4000);
#if GUI_WINSUPPORT
  _UpdateInfoWin();
  _UpdateCmdWin();
#endif
  GUI_RestoreContext(&ContextOld);
  #if GUI_WINSUPPORT
    WM_ExecIdle();
  #endif
  GUIDEMO_NotifyStartNext();
  GUI_SetBkColor(GUI_RED);
  GUI_Clear();
}

/*******************************************************************
*
*       _DemoAntialiasing

  Draws lines with different antialiasing factors
*/
static void _DemoAntialiasing(void) {
  int i, x1, x2, y1, y2;
  const GUI_FONT *font_old;
  y1 = 65;
  y2 = 5;
  /* Set drawing attributes */
  GUI_SetColor(GUI_WHITE);
  GUI_SetBkColor(GUI_BLACK);
  GUI_SetPenShape(GUI_PS_FLAT);
  GUI_Clear();
  /* draw headline */
  font_old = GUI_SetFont(&GUI_Font24_ASCII);
  GUI_SetTextAlign(GUI_TA_HCENTER);
  GUI_DispStringAt("AA_Lines - Sample", 160, 5);
  /* Draw lines without antialiased */
  GUI_Delay(1000);
  GUI_SetFont(&GUI_Font8x16);
  GUI_SetTextAlign(GUI_TA_LEFT);
  GUI_DispStringAtCEOL("draw normal lines using", 5, 40);
  GUI_DispStringAtCEOL("GUI_DrawLine", 5, 55);
  GUI_Delay(2500);
  x1 = 20;
  x2 = 100;
  GUI_SetFont(font_old);
  GUI_DispStringHCenterAt("Normal", (x1 + x2) / 2, 30 + y1);
  for (i = 1; i < 8; i++) {
    GUI_SetPenSize(i);
    GUI_DrawLine(x1, 40 + i * 15 + y1, x2, 40 + i * 15 + y1 + y2);
  }
  /* Draw lines with antialiasing quality factor 2 */
  GUI_Delay(3000);
  GUI_SetFont(&GUI_Font8x16);
  GUI_DispStringAtCEOL("", 5, 40);
  GUI_DispStringAtCEOL("", 5, 55);
  GUI_Delay(200);
  GUI_DispStringAtCEOL("draw antialiased lines using", 5, 40);
  GUI_DispStringAtCEOL("GUI_AA_DrawLine", 5, 55);
  GUI_Delay(3500);
  x1 = 120;
  x2 = 200;
  GUI_AA_SetFactor(2);
  GUI_SetFont(font_old);
  GUI_DispStringHCenterAt("Antialiased\nusing factor 2", (x1 + x2) / 2, 30 + y1);
  for (i = 1; i < 8; i++) {
    GUI_SetPenSize(i);
    GUI_AA_DrawLine(x1, 40 + i * 15 + y1, x2, 40 + i * 15 + y1 + y2);
  }
  /* Draw lines with antialiasing quality factor 6 */
  GUI_Delay(1500);
  x1 = 220;
  x2 = 300;
  GUI_AA_SetFactor(6);
  GUI_SetFont(font_old);
  GUI_DispStringHCenterAt("Antialiased\nusing factor 6", (x1 + x2) / 2, 30 + y1);
  for (i = 1; i < 8; i++) {
    GUI_SetPenSize(i);
    GUI_AA_DrawLine(x1, 40 + i * 15 + y1, x2, 40 + i * 15 + y1 + y2);
  }
  GUI_Delay(7500);
}

/*******************************************************************
*
*       _DrawJPEGS
*
* Iterates over all JPEG files of a directory
*/
static void _DrawJPEGS(void) {
  WIN32_FIND_DATA Context;
  static char     acPath[_MAX_PATH];
  HANDLE          hFind;
  char            acMask[_MAX_PATH];
  char            acFile[_MAX_PATH];
  char            acBuffer[_MAX_PATH];

  GUI_SetBkColor(GUI_BLACK);
  GUI_Clear();
  GUI_SetColor(GUI_WHITE);
  GUI_SetFont(&GUI_Font24_ASCII);
  GUI_DispStringHCenterAt("Drawing scaled JPEGs - Sample", 160, 5);
  GetWindowsDirectory(acBuffer, sizeof(acBuffer));
  _GetFirstBitmapDirectory(acBuffer, acPath);
  GUI_SetFont(&GUI_Font8x16);
  sprintf(acMask, "%s*.jp*", acPath);
  hFind = FindFirstFile(acMask, &Context);
  if (hFind != INVALID_HANDLE_VALUE) {
    do {
      sprintf(acFile, "%s%s", acPath, Context.cFileName);
      GUI_DispStringAtCEOL(acFile, 5, 40);
      _DrawJPEG(acFile);
    } while (FindNextFile(hFind, &Context));
  } else {
    GUI_DispStringHCenterAt("No JPEG files found!", 160, 60);
    GUI_Delay(2000);
  }
}

/*******************************************************************
*
*       _ShowComments
*
* Shows all comments of a GIF file
*/
static void _ShowComments(const char * pFile, int FileSize) {
  GUI_RECT Rect          = {80, 100, 239, 199};
  char     acBuffer[256] = {0};
  int      CommentCnt;
  /* Display sample information */
  GUI_SetFont(&GUI_Font8x16);
  GUI_ClearRect(0, 40, 319, 59);
  GUI_DispStringHCenterAt("Show all comments of a GIF file", 160, 40);
  /* Show all comments */
  GUI_ClearRect(0, 60, 319, 239);                                 /* Clear the image area */
  CommentCnt = 0;
  while (!GUI_GIF_GetComment(pFile, FileSize, (unsigned char *)acBuffer, sizeof(acBuffer), CommentCnt)) {
    char acNumber[12] = "Comment #0:";
    acNumber[9] = '0' + CommentCnt;
    GUI_DispStringHCenterAt(acNumber, 160, 80);
    GUI_SetBkColor(GUI_BLACK);
    GUI_SetColor(GUI_WHITE);
    GUI_ClearRectEx(&Rect);
    GUI_DispStringInRectWrap(acBuffer, &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER, GUI_WRAPMODE_WORD);
    GUI_SetBkColor(GUI_WHITE);
    GUI_SetColor(GUI_BLACK);
    GUI_Delay(4000);                                              /* Wait a while */
    CommentCnt++;
  }
}

void GUIDEMO_Intro(void) {
  int xCenter = LCD_GET_XSIZE() / 2;
  int y;
  char acText[50] = "Version of µC/GUI: ";
  strcat(acText, GUI_GetVersionString());
  GUI_SetBkColor(GUI_BLUE);
  GUI_SetColor(GUI_YELLOW);
  GUI_Clear();
  GUI_SetFont(&GUI_Font13B_1);
  GUI_DispStringHCenterAt("µC/GUI", xCenter, y= 10);
  GUI_SetFont(&GUI_Font10_ASCII);
  GUI_SetColor(GUI_WHITE);
  GUI_DispStringHCenterAt("Universal graphic software"
                          "\nfor embedded applications"
                          , xCenter, y += 20);
  GUI_SetFont(&GUI_Font10S_ASCII);
  GUI_DispStringHCenterAt("Compiled " __DATE__ " "__TIME__, xCenter, y += 25);
  GUI_DispStringHCenterAt(acText, xCenter, y += 16);
  GUIDEMO_Delay(5000);

  GUI_Clear();
  GUI_DrawBitmap(&bmMicriumLogo, (LCD_GET_XSIZE() - bmMicriumLogo.XSize) / 2, 6);
  GUI_SetFont(&GUI_Font13B_1);
  GUI_DispStringHCenterAt("www.micrium.com", LCD_GET_XSIZE() / 2, LCD_GET_YSIZE() - 50);
  GUIDEMO_Delay(5000);


}

void DemoShiftJIS(void) {
  GUI_SetFont(&GUI_Font24_ASCII);
  GUI_DispStringHCenterAt("FONT_ShiftJIS - Sample", 160, 5);
  /* Set ShiftJIS font */
  GUI_SetFont(&GUI_FontSJIS13);
  /* Display string */
  GUI_DispStringHCenterAt(aSJIS, 160, 80);
}

/*********************************************************************
*
*       MainTask
*/
void MainTask(void) {
  GUI_Init();
  while(1) {
    GUI_DispStringHCenterAt("WIDGET_Window sample\nshows how to use a WINDOW widget", 160, 5);
    GUI_ExecDialogBox(_aDialog, GUI_COUNTOF(_aDialog), _cbDialog, WM_HBKWIN, 30, 30);
    GUI_Clear();
    GUI_DispStringHCenterAt("Dialog has been closed", 160, 5);
    GUI_Delay(1000);
    GUI_Clear();
  }
}

/*******************************************************************
*
*        Demonstrates output of ShiftJIS characters
*
********************************************************************
*/
static void _DemoShiftJIS(void) {
  GUI_SetFont(&GUI_Font24_ASCII);
  GUI_DispStringHCenterAt("FONT_ShiftJIS - Sample", 160, 5);
  //
  // Set ShiftJIS font
  //
  GUI_SetFont(&GUI_FontSJIS13);
  //
  // Display string
  //
  GUI_DispStringHCenterAt(aSJIS, 160, 80);
}

/*********************************************************************
*
*       _cbBkWin
*
* Function description
*   Callback routine of desktop window
*/
static void _cbBkWin(WM_MESSAGE * pMsg) {
  switch (pMsg->MsgId) {
  case WM_PAINT:
    GUI_Clear();
    GUI_SetFont(&GUI_Font24_ASCII);
    GUI_DispStringHCenterAt("WIDGET_SortedListview - Sample", 160, 5);
    GUI_SetFont(&GUI_Font10_ASCII);
    GUI_DispStringHCenterAt("Please touch the header of the LISTVIEW for sorting...", 160, 35);
    break;
  default:
    WM_DefaultProc(pMsg);
  }
}

/*********************************************************************
*
*       _cbBkWin
*/
static void _cbBkWin(WM_MESSAGE * pMsg) {
  const WM_KEY_INFO * pKeyInfo;
  int                 NCode;
  int                 Id;

  switch (pMsg->MsgId) {
  case WM_KEY:
    pKeyInfo = (const WM_KEY_INFO*)pMsg->Data.p;
    if (pKeyInfo->PressedCnt > 0) {
      switch (pKeyInfo->Key) {
      case GUI_KEY_TAB:
        WM_SetFocusOnNextChild(pMsg->hWin);
        break;
      case GUI_KEY_BACKTAB:
        WM_SetFocusOnPrevChild(pMsg->hWin);
        break;
      case GUI_KEY_ESCAPE:
        _Break = 1;
        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_BUTTON0:
        _AppSelection = APP_DASHBOARD;
        break;
      case GUI_ID_BUTTON1:
        _AppSelection = APP_CASHTERMINAL;
        break;
      }
      break;
    }
    break;
  case WM_PAINT:
    GUI_DrawGradientV(0, 0, 639, 479, GUI_BLUE, GUI_BLACK);
    GUI_SetFont(&GUI_FontAA2_32);
    GUI_SetTextMode(GUI_TM_TRANS);
    GUI_SetColor(GUI_WHITE);
    GUI_DispStringHCenterAt("emWin VGA Demonstration\n", 400, 44);
    GUI_SetFont(&GUI_FontAA2_21);
    GUI_DispStringHCenterAt("Press the 'Dashboard' or the 'Cash Terminal'\nbutton to start one of the applications\n", 320, 150);
    GUI_DrawBitmap(&bmSeggerLogo, 30, 30);
    break;
  }
}

/*******************************************************************
*
*       MainTask
*/
void MainTask(void) {
  int xSizeH;
  GUI_Init();
  xSizeH = LCD_GetXSize() / 2;
  GUI_SetColor(GUI_WHITE);
  GUI_SetFont(&GUI_Font24_ASCII);
  GUI_DispStringHCenterAt("Fading sample", xSizeH, 5);
  GUI_SetFont(&GUI_Font16B_ASCII);
  GUI_DispStringHCenterAt("Shows how to use memory devices\nfor a fading effect", xSizeH, 40);
  _DemoFade();
  while (1) {
    GUI_Delay(100);
  }
}

/*********************************************************************
*
*       _DispCursor
*/
static void _DispCursor(void) {
  int i, x, y;
  GUI_DispStringHCenterAt("Available cursors:", 160,  80);
  for (i = 0; i < 12; i++) {
    x = 160 - (_apCursor[i]->pBitmap->XSize / 2);
    y = 120 - (_apCursor[i]->pBitmap->YSize / 2);
    GUI_DrawBitmap(_apCursor[i]->pBitmap, x, y);
    GUI_DispStringHCenterAt(_aacCursorName[i], 160,145);
    GUI_Delay(750);
    GUI_ClearRect(0, 100, 319, 165);
  }
  GUI_ClearRect(0, 80, 319, 100);
  GUI_Delay(500);
}