reactos/base/applications/rapps/crichedit.h

   1 #pragma once
   2
   3 class CRichEdit :
   4     public CWindow
   5 {
   6     HMODULE LoadedLibrary;
   7     inline VOID GenericInsertText(LPCWSTR lpszText, LONG InsertedTextLen, DWORD dwEffects)
   8     {
   9         SETTEXTEX SetText;
  10         LONG Len = GetTextLen();
  11
  12         /* Insert new text */
  13         SetText.flags = ST_SELECTION;
  14         SetText.codepage = 1200;
  15
  16         SendMessageW(EM_SETTEXTEX, (WPARAM) &SetText, (LPARAM) lpszText);
  17
  18         SetRangeFormatting(Len, Len + InsertedTextLen,
  19             (dwEffects == CFM_LINK) ? (PathIsURLW(lpszText) ? dwEffects : 0) : dwEffects);
  20     }
  21
  22 public:
  23     VOID SetRangeFormatting(LONG Start, LONG End, DWORD dwEffects)
  24     {
  25         CHARFORMAT2W CharFormat;
  26
  27         SendMessageW(EM_SETSEL, Start, End);
  28
  29         ZeroMemory(&CharFormat, sizeof(CharFormat));
  30
  31         CharFormat.cbSize = sizeof(CharFormat);
  32         CharFormat.dwMask = dwEffects;
  33         CharFormat.dwEffects = dwEffects;
  34
  35         SendMessageW(EM_SETCHARFORMAT, SCF_WORD | SCF_SELECTION, (LPARAM) &CharFormat);
  36
  37         SendMessageW(EM_SETSEL, End, End + 1);
  38     }
  39
  40     LONG GetTextLen(VOID)
  41     {
  42         GETTEXTLENGTHEX TxtLenStruct;
  43
  44         TxtLenStruct.flags = GTL_NUMCHARS;
  45         TxtLenStruct.codepage = 1200;
  46
  47         return (LONG) SendMessageW(EM_GETTEXTLENGTHEX, (WPARAM) &TxtLenStruct, 0);
  48     }
  49
  50     /*
  51     * Insert text (without cleaning old text)
  52     * Supported effects:
  53     *   - CFM_BOLD
  54     *   - CFM_ITALIC
  55     *   - CFM_UNDERLINE
  56     *   - CFM_LINK
  57     */
  58     VOID InsertText(LPCWSTR lpszText, DWORD dwEffects)
  59     {
  60         GenericInsertText(lpszText, wcslen(lpszText), dwEffects);
  61     }
  62
  63     VOID InsertText(const ATL::CStringW& szText, DWORD dwEffects)
  64     {
  65         GenericInsertText(szText.GetString(), szText.GetLength(), dwEffects);
  66     }
  67     /*
  68     * Clear old text and add new
  69     */
  70     VOID SetText(LPCWSTR lpszText, DWORD dwEffects)
  71     {
  72         SetWindowTextW(L"");
  73         InsertText(lpszText, dwEffects);
  74     }
  75
  76     VOID SetText(const ATL::CStringW& szText, DWORD dwEffects)
  77     {
  78         SetText(szText.GetString(), dwEffects);
  79     }
  80
  81     HWND Create(HWND hwndParent)
  82     {
  83         // TODO: FreeLibrary when the window is destroyed
  84         LoadedLibrary = LoadLibraryW(L"riched20.dll");
  85
  86         m_hWnd = CreateWindowExW(0,
  87             L"RichEdit20W",
  88             NULL,
  89             WS_CHILD | WS_VISIBLE | ES_MULTILINE |
  90             ES_LEFT | ES_READONLY,
  91             205, 28, 465, 100,
  92             hwndParent,
  93             NULL,
  94             _AtlBaseModule.GetModuleInstance(),
  95             NULL);
  96
  97         if (m_hWnd)
  98         {
  99             SendMessageW(EM_SETBKGNDCOLOR, 0, GetSysColor(COLOR_BTNFACE));
 100             SendMessageW(WM_SETFONT, (WPARAM) GetStockObject(DEFAULT_GUI_FONT), 0);
 101             SendMessageW(EM_SETEVENTMASK, 0, ENM_LINK | ENM_MOUSEEVENTS);
 102             SendMessageW(EM_SHOWSCROLLBAR, SB_VERT, TRUE);
 103         }
 104
 105         return m_hWnd;
 106     }
 107
 108     virtual VOID OnLink(ENLINK *Link)
 109     {
 110     }
 111
 112     ~CRichEdit()
 113     {
 114         FreeLibrary(LoadedLibrary);
 115     }
 116
 117 };