base/applications/rapps/include/crichedit.h

   1 #pragma once
   2 #include <rosctrls.h>
   3
   4 class CRichEdit :
   5     public CWindow
   6 {
   7     HMODULE m_LoadedLibrary;
   8
   9     VOID GenericInsertText(LPCWSTR lpszText, LONG InsertedTextLen, DWORD dwEffects)
  10     {
  11         SETTEXTEX SetText;
  12         LONG Len = GetTextLen();
  13
  14         if (InsertedTextLen)
  15         {
  16             /* Insert new text */
  17             SetText.flags = ST_SELECTION;
  18             SetText.codepage = 1200;
  19
  20             SendMessageW(EM_SETTEXTEX, (WPARAM) &SetText, (LPARAM) lpszText);
  21
  22             if ((dwEffects == CFM_LINK) && !PathIsURLW(lpszText))
  23             {
  24                 // if text is not an URL, no styling is used
  25                 SetRangeFormatting(Len, Len + InsertedTextLen, 0);
  26             }
  27             else
  28             {
  29                 SetRangeFormatting(Len, Len + InsertedTextLen, dwEffects);
  30             }
  31         }
  32     }
  33
  34 public:
  35     CRichEdit() : CWindow(), m_LoadedLibrary(NULL) {}
  36
  37     VOID SetRangeFormatting(LONG Start, LONG End, DWORD dwEffects)
  38     {
  39         CHARFORMAT2W CharFormat;
  40
  41         SendMessageW(EM_SETSEL, Start, End);
  42
  43         ZeroMemory(&CharFormat, sizeof(CharFormat));
  44
  45         CharFormat.cbSize = sizeof(CharFormat);
  46         CharFormat.dwMask = dwEffects;
  47         CharFormat.dwEffects = dwEffects;
  48
  49         SendMessageW(EM_SETCHARFORMAT, SCF_WORD | SCF_SELECTION, (LPARAM) &CharFormat);
  50
  51         SendMessageW(EM_SETSEL, End, End + 1);
  52     }
  53
  54     LONG GetTextLen()
  55     {
  56         GETTEXTLENGTHEX TxtLenStruct;
  57
  58         TxtLenStruct.flags = GTL_NUMCHARS;
  59         TxtLenStruct.codepage = 1200;
  60
  61         return (LONG) SendMessageW(EM_GETTEXTLENGTHEX, (WPARAM) &TxtLenStruct, 0);
  62     }
  63
  64     /*
  65     * Insert text (without cleaning old text)
  66     * Supported effects:
  67     *   - CFM_BOLD
  68     *   - CFM_ITALIC
  69     *   - CFM_UNDERLINE
  70     *   - CFM_LINK
  71     */
  72     VOID InsertText(LPCWSTR lpszText, DWORD dwEffects)
  73     {
  74         GenericInsertText(lpszText, wcslen(lpszText), dwEffects);
  75     }
  76
  77     VOID InsertText(const ATL::CStringW& szText, DWORD dwEffects)
  78     {
  79         GenericInsertText(szText.GetString(), szText.GetLength(), dwEffects);
  80     }
  81     /*
  82     * Clear old text and add new
  83     */
  84     VOID SetText(LPCWSTR lpszText, DWORD dwEffects)
  85     {
  86         SetWindowTextW(L"");
  87         InsertText(lpszText, dwEffects);
  88     }
  89
  90     VOID SetText(const ATL::CStringW& szText, DWORD dwEffects)
  91     {
  92         SetText(szText.GetString(), dwEffects);
  93     }
  94
  95     HWND Create(HWND hwndParent)
  96     {
  97         m_LoadedLibrary = LoadLibraryW(L"riched20.dll");
  98
  99         m_hWnd = CreateWindowExW(0,
 100                                  L"RichEdit20W",
 101                                  NULL,
 102                                  WS_CHILD | WS_VISIBLE | ES_MULTILINE |
 103                                  ES_LEFT | ES_READONLY,
 104                                  205, 28, 465, 100,
 105                                  hwndParent,
 106                                  NULL,
 107                                  _AtlBaseModule.GetModuleInstance(),
 108                                  NULL);
 109
 110         if (m_hWnd)
 111         {
 112             SendMessageW(EM_SETBKGNDCOLOR, 0, GetSysColor(COLOR_BTNFACE));
 113             SendMessageW(WM_SETFONT, (WPARAM) GetStockObject(DEFAULT_GUI_FONT), 0);
 114             SendMessageW(EM_SETEVENTMASK, 0, ENM_LINK | ENM_MOUSEEVENTS);
 115             SendMessageW(EM_SHOWSCROLLBAR, SB_VERT, TRUE);
 116         }
 117
 118         return m_hWnd;
 119     }
 120
 121     virtual VOID OnLink(ENLINK *Link)
 122     {
 123     }
 124
 125     ~CRichEdit()
 126     {
 127         if (m_LoadedLibrary)
 128         {
 129             FreeLibrary(m_LoadedLibrary);
 130         }
 131     }
 132
 133 };