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TextEdit.h
资源名称：newMyTyper.rar　[点击查看]
上传用户：starrett
上传日期：2020-11-17
资源大小：1474k
文件大小：16k
源码类别：

RichEdit

开发平台：

Visual C++

TextEdit.h：源码内容
  2. //#include"resource.h"
  3. LRESULT CALLBACK TextEditProc(HWND, UINT, WPARAM, LPARAM);
  5.      static DWORD   dwCharSet = DEFAULT_CHARSET ;
  6.      static int     cxChar, cyChar, cxClient, cyClient, cxBuffer, cyBuffer, xCaret, yCaret, iVertPos, iHorzPos, xFocu;
  7.      static TCHAR * pBuffer = NULL ;
  8.      static RowNode* PRow[ROWSMAX];
  9.      HDC            hdc ;
  10.      int            x=0,y=0,j=0, i=0, iPaintBeg, iPaintEnd ;
  11.  //long           x=0,y=0;
  12.  POINT          point;
  13.      PAINTSTRUCT    ps ;
  14.      TEXTMETRIC     tm ;
  15.      SCROLLINFO     si ;
  16.      bool           bDown;
  18. HWND TextEdit(HINSTANCE hInstance, HWND hwnd)
  19. {
  20.     static TCHAR TextEditClass[] = TEXT("TextEdit") ;
  21.     HWND hwndEdit ;
  22.     WNDCLASS wndclass ;
  23.     wndclass.style           = CS_HREDRAW | CS_VREDRAW ;
  24.     wndclass.lpfnWndProc     = TextEditProc ;
  25.     wndclass.cbClsExtra      = 0 ;
  26.     wndclass.cbWndExtra      = 0 ;
  27.     wndclass.hInstance       = hInstance ;
  28.     wndclass.hIcon           = LoadIcon(NULL, IDI_APPLICATION) ;
  29.     wndclass.hCursor         = LoadCursor(NULL, IDC_ARROW) ;
  30.     wndclass.hbrBackground   = (HBRUSH) GetStockObject(WHITE_BRUSH) ;
  31.     wndclass.lpszMenuName    = NULL ;
  32.     wndclass.lpszClassName   = TextEditClass ;
  33.     RegisterClass(&wndclass) ;
  34.     hwndEdit = CreateWindow (TextEditClass, NULL,
  35.                               WS_CHILDWINDOW | WS_VISIBLE | WS_BORDER,
  36.                               0, 0, 0, 0,
  37.                               hwnd, NULL,
  38.                               NULL, NULL) ;
  39.     return hwndEdit ;
  41. }
  43. LRESULT CALLBACK TextEditProc (HWND hwndEdit, UINT message, WPARAM wParam, LPARAM lParam)
  44. {
  45.      /*static DWORD   dwCharSet = DEFAULT_CHARSET ;
  46.      static int     cxChar, cyChar, cxClient, cyClient, cxBuffer, cyBuffer, xCaret, yCaret, iVertPos, iHorzPos, xFocu;
  47.      static TCHAR * pBuffer = NULL ;
  48.      static RowNode* PRow[ROWSMAX];
  49.      HDC            hdc ;
  50.      int            x=0,y=0,j=0, i=0, iPaintBeg, iPaintEnd ;
  51.  //long           x=0,y=0;
  52.  POINT          point;
  53.      PAINTSTRUCT    ps ;
  54.      TEXTMETRIC     tm ;
  55.      SCROLLINFO     si ;
  56.      bool           bDown;*/
  57.  PAINTSTRUCT    ps ;
  58.      TEXTMETRIC     tm ;
  59.      static DWORD   dwCharSet = DEFAULT_CHARSET ;
  60.      PTSTR          text=NULL;
  61.      SCROLLINFO     si ;
  62.  static POINT   point;
  63.      int            row=0,      //行增加
  64.         column=0;  //列增加
  67.      switch (message)
  68.      {
  69.      case WM_INPUTLANGCHANGE:
  70.           dwCharSet = wParam ;
  71.           return 0 ;
  73.      case WM_CREATE:
  74.           InsertRow(PRow,ROWSMAX);
  75.           hdc = GetDC (hwndEdit) ;
  76.           SelectObject (hdc, CreateFont (0, 0, 0, 0, 0, 0, 0, 0,
  77.                                    dwCharSet, 0, 0, 0, FIXED_PITCH, NULL)) ;
  78.           
  79.           GetTextMetrics (hdc, &tm) ;
  80.           cxChar = tm.tmAveCharWidth ;
  81.           cyChar = tm.tmHeight ;
  82.           
  83.           DeleteObject (SelectObject (hdc, GetStockObject (SYSTEM_FONT))) ;
  84.           ReleaseDC (hwndEdit, hdc) ;
  85.           return 0 ;      
  86.           
  87.      case WM_SIZE:
  88.           cxClient = LOWORD (lParam) ;
  89.           cyClient = HIWORD (lParam) ;
  90.           cxBuffer = max (1, cxClient / cxChar) ;
  91.           cyBuffer = max (1, cyClient / cyChar) ;
  92.           SetScroll(hwndEdit, cyBuffer, SB_VERT) ;
  93.           InvalidateRect (hwndEdit, NULL, TRUE) ;
  94.           return 0 ;
  95.                     
  96.  /*case WM_LBUTTONDOWN:
  97.   point.x = LOWORD(lParam);
  98.           point.y = HIWORD(lParam);
  99.           SetCaretPos(point.x, point.y);
  100.   return 0;*/
  102.      case WM_SETFOCUS:
  103.           CreateCaret (hwndEdit, NULL, 1, cyChar) ;
  104.           SetCaretPos (xFocu, (yCaret-iVertPos) * cyChar) ;
  105.           ShowCaret (hwndEdit) ;
  106.           return 0 ;
  107.           
  108.      case WM_KILLFOCUS:
  109.           HideCaret (hwndEdit) ;
  110.           DestroyCaret () ;
  111.           return 0 ;
  113.      case WM_KEYDOWN:
  114.           for (i = 0 ; i < (int) LOWORD (lParam) ; i++)
  115.           {
  116.               switch (wParam)
  117.               {
  118.               case VK_HOME:
  119.                    xFocu=xCaret = 0 ;
  120.                    break ;
  121.                
  122.               case VK_END:
  123.                    xCaret = PRow[yCaret]->number ;
  124.    xFocu = PRow[yCaret]->width ;
  125.                    break ;
  126.                
  127.               case VK_PRIOR:
  128.                    yCaret = 0 ;
  129.                    break ;
  130.                
  131.               case VK_NEXT:
  132.                    yCaret = RowSum - 1 ;
  133.                    break ;
  134.                
  135.               case VK_LEFT:
  136.                    if(xCaret == 0 && yCaret != 0)
  137.                    {   
  138.                        yCaret-- ;
  139.                        xCaret=PRow[yCaret]->number ;
  140.                        xFocu=PRow[yCaret]->width ;
  141.                    }
  142.                    else
  143.                    {
  144.                        if((xCaret - 1)>=0)
  145.                        {
  146.    xCaret-- ;
  147.                            if((PRow[yCaret]->date[xCaret] >> 8)>0)
  148.                                 xFocu -= cxChar*2 ;
  149.                            else
  150.                                 xFocu -= cxChar ;
  151.                        }
  152.                    }
  153.                    break ;
  154.                
  155.               case VK_RIGHT:
  156.                    if(xCaret == PRow[yCaret]->number && yCaret != RowSum-1)
  157.                    {
  158.                        yCaret++;
  159.                        xFocu=xCaret=0;
  160.                    }
  161.                    else
  162.                    {
  163.                        if((xCaret + 1)<=PRow[yCaret]->number)
  164.                        {
  165.                            if((PRow[yCaret]->date[xCaret] >> 8)>0)
  166.                               xFocu += cxChar*2 ;
  167.                            else
  168.                               xFocu += cxChar ;
  169.    xCaret++ ;
  170.                        }
  171.                    }
  173.                    break ;
  174.                
  175.               case VK_UP:
  176.                    yCaret = max (yCaret - 1, 0) ;
  177.                    if(xFocu >= PRow[yCaret]->width)
  178.    {
  179. xCaret=PRow[yCaret]->number ;
  180. xFocu=PRow[yCaret]->width ;
  181.    }
  182.    else
  183.    {
  184.    while(x<xFocu)
  185.    {
  186. x+=CharWidth(PRow[yCaret]->date[i])*cxChar ;
  187. i++ ;
  188.    }
  189.    xCaret=i ;
  190.    xFocu=x ;
  191.    }
  192.                    break ;
  193.                
  194.               case VK_DOWN:
  195.                    yCaret = min (yCaret + 1, RowSum - 1) ;
  196.                    if(xFocu >= PRow[yCaret]->width)
  197.    {
  198. xCaret=PRow[yCaret]->number ;
  199. xFocu=PRow[yCaret]->width ;
  200.    }
  201.    else
  202.    {
  203.    while(x<xFocu)
  204.    {
  205. x+=CharWidth(PRow[yCaret]->date[i])*cxChar ;
  206. i++ ;
  207.    }
  208.    xCaret=i ;
  209.    xFocu=x ;
  210.    }
  211.                    break ;
  212.                
  213.               case VK_DELETE:
  214.                   if(xCaret<PRow[yCaret]->number)
  215.                   {
  216.                     DeleteChar(PRow,yCaret,xCaret);
  217.                     HideCaret (hwndEdit) ;
  218.                     hdc = GetDC (hwndEdit) ;
  219.                     SetFont(hdc, dwCharSet) ;
  220.                     ClsChar(hdc , xFocu, (yCaret-iVertPos) * cyChar, min(cxBuffer*cxChar,PRow[yCaret]->width)+1, (yCaret-iVertPos+1) * cyChar) ;
  221.                     TextOut (hdc, xFocu, (yCaret-iVertPos) * cyChar,PRow[yCaret]->date+xCaret, PRow[yCaret]->number-xCaret) ;
  222.                     DeleteObject (SelectObject (hdc, GetStockObject (SYSTEM_FONT))) ;
  223.                     if((PRow[yCaret]->date[xCaret] >> 8)>0)
  224.                         PRow[yCaret]->width -= cxChar*2 ;
  225.                     else
  226.                         PRow[yCaret]->width -= cxChar ;                   
  227.                     ReleaseDC (hwndEdit, hdc) ;
  228.                     ShowCaret (hwndEdit) ;
  229.                   }
  230.                    return 0;
  231.               }
  232.           }
  233.           SetCaretPos (xFocu, (yCaret-iVertPos) * cyChar) ;
  234.           return 0 ;
  236.      case WM_CHAR:
  237.           for (i = 0 ; i < (int) LOWORD (lParam) ; i++)
  238.           {
  239.                switch (wParam)
  240.                {
  241.                case 'b':                    // backspace
  242.                     if (xCaret > 0)
  243.                     {
  244.                          xCaret-- ;
  245.                          if((PRow[yCaret]->date[xCaret] >> 8)>0)
  246.                             xFocu -= cxChar*2 ;
  247.                          else
  248.                             xFocu -= cxChar ;
  249.                          SendMessage (hwndEdit, WM_KEYDOWN, VK_DELETE, 1) ;
  250.                     }
  251.                     else if(xCaret == 0 && yCaret != 0)
  252.                     {
  253.                         x=PRow[yCaret-1]->number ;
  254. xFocu=PRow[yCaret-1]->width ;
  255.                         CopyRow(PRow,yCaret,xCaret,yCaret-1,PRow[yCaret-1]->number);
  256. PRow[yCaret-1]->width=xFocu + PRow[yCaret]->width;
  257.                         DeleteRow(PRow,yCaret);
  258.                         xCaret=x;yCaret--;
  259.                         HideCaret (hwndEdit) ;
  260.                         hdc = GetDC (hwndEdit) ;
  261.                         SetFont(hdc, dwCharSet) ;                        
  262.                         ClsChar(hdc , 0 , (yCaret-iVertPos) * cyChar , cxBuffer*cxChar, (RowSum-iVertPos+1) * cyChar);
  263.                         for (y = yCaret ; y < RowSum ; y++)
  264.                             TextOut (hdc, 0, (y-iVertPos) * cyChar,PRow[y]->date, PRow[y]->number) ;
  265.                         DeleteObject (SelectObject (hdc, GetStockObject (SYSTEM_FONT))) ;
  266.                         ReleaseDC (hwndEdit, hdc) ;
  267.                         ShowCaret (hwndEdit) ;
  268.                         SendMessage(hwndEdit, WM_VSCROLL, SB_LINEUP, 0);
  269.                         SetScroll(hwndEdit, cyBuffer, SB_VERT) ;
  270.                     }
  271.                     break ;
  272.                     
  273.                case 't':                    // tab
  275.                     break ;
  276.                     
  277.                case 'n':                    // line feed
  279.                     break ;
  280.                     
  281.                case 'r':                    // carriage return
  282.     xFocu = 0 ;
  283.                     InsertRow(PRow,yCaret+1);
  284.                     HideCaret (hwndEdit) ;
  285.                     hdc = GetDC (hwndEdit) ;
  287.                     SetFont(hdc, dwCharSet) ;
  288.                     if(xCaret < PRow[yCaret]->number) CopyRow(PRow,yCaret,xCaret,yCaret+1,0);
  289.                     
  290.                     ClsChar(hdc , 0 , (yCaret-iVertPos) * cyChar , cxBuffer*cxChar, (RowSum-iVertPos) * cyChar);                
  291.                     for (y = yCaret ; y < RowSum ; y++)
  292.                         TextOut (hdc, 0, (y-iVertPos) * cyChar,PRow[y]->date, PRow[y]->number) ;
  293.                     DeleteObject (SelectObject (hdc, GetStockObject (SYSTEM_FONT))) ;
  294.                     yCaret++;
  295.                     ReleaseDC (hwndEdit, hdc) ;
  296.                     ShowCaret (hwndEdit) ;
  297.                     xCaret=0;
  298.                     if(RowSum > cyBuffer)
  299.                         SetScroll(hwndEdit, cyBuffer, SB_VERT) ;
  300.                     break ;
  301.                     
  302.                case 'x1B':                  // escape
  304.                    hdc = GetDC (hwndEdit) ;
  305.    ClsChar(hdc,0,0,cxBuffer*cxChar,(RowSum-iVertPos) * cyChar);   
  306. //   HideCaret (hwndEdit) ;
  307.    xCaret=yCaret=0;
  308.    xFocu=0;
  309. //   ShowCaret (hwndEdit) ;
  310.    SetCaretPos(xCaret,yCaret);
  311.     for(j;j<RowSum;j++)
  312.        for(i;i<cxBuffer;i++)
  313.    PRow[j]->date[i]=' ';
  314.  //  for(j;j<cyBuffer;j++)
  315. //   TextOut(hdc,0,0,PRow[j]->date,PRow[j]->number);
  316.    ReleaseDC (hwndEdit, hdc) ;
  317.                    break ;
  318.                          
  319.                          
  320.                default:
  321.                     InputChar(PRow,yCaret,xCaret,(TCHAR)wParam);
  323.                     HideCaret (hwndEdit) ;
  324.                     hdc = GetDC (hwndEdit) ;
  326.                     SetFont(hdc, dwCharSet) ;
  327.                     TextOut (hdc, xFocu, (yCaret-iVertPos) * cyChar,PRow[yCaret]->date+xCaret, PRow[yCaret]->number-xCaret) ;
  328.                     DeleteObject (SelectObject (hdc, GetStockObject (SYSTEM_FONT))) ;
  330.                     ReleaseDC (hwndEdit, hdc) ;
  331.                     ShowCaret (hwndEdit) ;
  332.                     xCaret++  ;
  333.                     if((wParam >> 8)>0)
  334.                     {
  335.                         PRow[yCaret]->width += cxChar*2 ;
  336.                         xFocu += cxChar*2 ;
  337.                     }
  338.                     else
  339.                     {
  340.                         PRow[yCaret]->width += cxChar ;
  341.                         xFocu += cxChar ;
  342.                     }
  343.                     break;
  344.                }
  345.           }
  346.           if(yCaret >= cyBuffer+iVertPos)
  347.           {
  348.               x=yCaret-cyBuffer+1 ;
  349.               SendMessage(hwndEdit, WM_VSCROLL, SB_THUMBTRACK, x+1);
  350.               return 0;
  351.           }
  352.           else if(yCaret < iVertPos)
  353.           {
  354.               SendMessage(hwndEdit, WM_VSCROLL, SB_THUMBTRACK, yCaret+1);
  355.               return 0;
  356.           }
  358.           SetCaretPos (xFocu, (yCaret-iVertPos) * cyChar) ;
  359.           return 0 ;
  360.      
  362.      case WM_LBUTTONDOWN:
  363.  /*SetCursor(LoadCursor(NULL, IDC_IBEAM));
  364.  bDown=true;//左键被按下
  365.              x=LOWORD(lParam);
  366.      y=HIWORD(lParam);
  367.  /*
  368.  if(y%cyChar==0)
  369.  yCaret=y;
  370.     else yCaret=y/cyChar+cyChar;
  371. if(x>=PRow[yCaret]->width)
  372. xCaret=PRow[yCaret]->width;
  373. else if(x%cxChar==0)
  374. xCaret=x;
  375.     else xCaret=x/cxChar;
  376.     
  377.     SetCaretPos(xCaret,yCaret);
  378. */
  379.   point.x = LOWORD(lParam);
  380.           point.y = HIWORD(lParam);
  381.           SetCaretPos(point.x, point.y);
  382.   return 0;
  383.   break;
  384.  case WM_LBUTTONUP:
  385.  SetCursor(LoadCursor(NULL, IDC_IBEAM));
  386.          bDown=false;
  387.   x=LOWORD(lParam);
  388.   y=HIWORD(lParam);
  389.   /*
  390.  if((x%cxChar==0))
  391. xCaret=x;
  392.  else 
  393. xCaret=x/cxChar;
  394. if(y%cyChar==0)
  395.  yCaret=y;
  396. else yCaret=y/cyChar;
  397.   SetCaretPos(xCaret,yCaret);
  398.   */
  399.  break; 
  400.  case WM_MOUSEMOVE:
  401.         SetCursor(LoadCursor(NULL, IDC_IBEAM));
  402.   x=LOWORD(lParam);
  403.   y=HIWORD(lParam);
  404.  break;
  406.      case WM_VSCROLL:
  408.           si.cbSize = sizeof (si) ;
  409.           si.fMask  = SIF_ALL ;
  410.           GetScrollInfo (hwndEdit, SB_VERT, &si) ;
  413.           iVertPos = si.nPos ;
  415.           switch (LOWORD (wParam))
  416.           {
  417.           case SB_TOP:
  418.                si.nPos = si.nMin ;
  419.                break ;
  420.                
  421.           case SB_BOTTOM:
  422.                si.nPos = si.nMax ;
  423.                break ;
  424.                
  425.           case SB_LINEUP:
  426.                si.nPos -= 1 ;
  427.                break ;
  428.                
  429.           case SB_LINEDOWN:
  430.                si.nPos += 1 ;
  431.                break ;
  432.                
  433.           case SB_PAGEUP:
  434.                si.nPos -= si.nPage ;
  435.                break ;
  436.                
  437.           case SB_PAGEDOWN:
  438.                si.nPos += si.nPage ;
  439.                break ;
  440.                
  441.           case SB_THUMBTRACK:
  442.                if(lParam)
  443.                    si.nPos = lParam-1 ;
  444.                else
  445.                    si.nPos = si.nTrackPos ;
  446.                break ;
  447.     
  448.           default:
  449.                break ;         
  450.           }
  452.           si.fMask = SIF_POS ;
  453.           SetScrollInfo (hwndEdit, SB_VERT, &si, TRUE) ;
  454.           GetScrollInfo (hwndEdit, SB_VERT, &si) ;
  457.           if (si.nPos != iVertPos)
  458.           {                    
  459.                HideCaret (hwndEdit) ;           
  460.                ScrollWindow (hwndEdit, 0, cyChar * (iVertPos - si.nPos), NULL, NULL) ;
  461.                ShowCaret (hwndEdit) ;
  462.                SetCaretPos (xCaret * cxChar, (yCaret-si.nPos) * cyChar) ;
  463.                iVertPos=si.nPos;
  464.                UpdateWindow (hwndEdit) ;
  465.           }
  466.           return 0 ;       
  468.      case WM_PAINT:
  469.           hdc = BeginPaint (hwndEdit, &ps) ;
  470.           SetFont(hdc, dwCharSet) ;
  471.           SetWindowOrgEx(hdc,cxChar * iHorzPos,cyChar * iVertPos,NULL);
  472.           iPaintBeg = max (0, iVertPos + ps.rcPaint.top / cyChar) ;
  473.           iPaintEnd = min (RowSum - 1, iVertPos + ps.rcPaint.bottom / cyChar) ;
  474.           for (y = iPaintBeg ; y <= iPaintEnd ; y++)
  475.                TextOut (hdc, 0, y * cyChar,PRow[y]->date, PRow[y]->number) ;
  476.           DeleteObject (SelectObject (hdc, GetStockObject (SYSTEM_FONT))) ;
  478.           EndPaint (hwndEdit, &ps) ;
  479.           return 0 ;
  481.      case WM_DESTROY:
  482.           PostQuitMessage (0) ;
  483.           return 0 ;
  485.      }
  486.      return DefWindowProc (hwndEdit, message, wParam, lParam) ;
  487. }