fix for wxSYS_COLOUR_LISTBOX representation

[wxWidgets.git] / src / msw / textctrl.cpp

diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp
index c64bfb06e8f1d7c37eb245124ef9614ae4a207ea..200b599bf4f33cbbc35a7904a52dbe76b54578dd 100644 (file)
--- a/src/msw/textctrl.cpp
+++ b/src/msw/textctrl.cpp
@@ -95,6 +95,11 @@
     #define SF_UNICODE 0x0010
 #endif
 
     #define SF_UNICODE 0x0010
 #endif
 

+// Watcom C++ doesn't define this
+#ifndef SCF_ALL
+#define SCF_ALL 0x0004
+#endif
+

 // ----------------------------------------------------------------------------
 // private functions
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // private functions
 // ----------------------------------------------------------------------------


@@ -111,31 +116,24 @@ DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
 
 #if wxUSE_RICHEDIT
 
 
 #if wxUSE_RICHEDIT
 

-// this module initializes RichEdit DLL if needed
+// this module initializes RichEdit DLL(s) if needed

 class wxRichEditModule : public wxModule
 {
 public:
     virtual bool OnInit();
     virtual void OnExit();
 
 class wxRichEditModule : public wxModule
 {
 public:
     virtual bool OnInit();
     virtual void OnExit();
 

-    // get the version currently loaded, -1 if none
-    static int GetLoadedVersion() { return ms_verRichEdit; }
-

     // load the richedit DLL of at least of required version
     static bool Load(int version = 1);
 
 private:
     // load the richedit DLL of at least of required version
     static bool Load(int version = 1);
 
 private:

-    // the handle to richedit DLL and the version of the DLL loaded
-    static HINSTANCE ms_hRichEdit;
-
-    // the DLL version loaded or -1 if none
-    static int ms_verRichEdit;
+    // the handles to richedit 1.0 and 2.0 (or 3.0) DLLs
+    static HINSTANCE ms_hRichEdit[2];

 
     DECLARE_DYNAMIC_CLASS(wxRichEditModule)
 };
 
 
     DECLARE_DYNAMIC_CLASS(wxRichEditModule)
 };
 

-HINSTANCE wxRichEditModule::ms_hRichEdit = (HINSTANCE)NULL;
-int       wxRichEditModule::ms_verRichEdit = -1;
+HINSTANCE wxRichEditModule::ms_hRichEdit[2] = { NULL, NULL };

 
 IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule)
 
 
 IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule)
 


@@ -255,28 +253,63 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
     wxString windowClass = wxT("EDIT");
 
 #if wxUSE_RICHEDIT
     wxString windowClass = wxT("EDIT");
 
 #if wxUSE_RICHEDIT

+    if ( m_windowStyle & wxTE_AUTO_URL )
+    {
+        // automatic URL detection only works in RichEdit 2.0+
+        m_windowStyle |= wxTE_RICH2;
+    }
+
+    if ( m_windowStyle & wxTE_RICH2 )
+    {
+        // using richedit 2.0 implies using wxTE_RICH
+        m_windowStyle |= wxTE_RICH;
+    }
+
+    // we need to load the richedit DLL before creating the rich edit control

     if ( m_windowStyle & wxTE_RICH )
     {
     if ( m_windowStyle & wxTE_RICH )
     {

-        static bool s_errorGiven = FALSE;   // MT-FIXME
+        static bool s_errorGiven = FALSE;// MT-FIXME
+
+        // Which version do we need? Use 1.0 by default because it is much more
+        // like the the standard EDIT or 2.0 if explicitly requested, but use
+        // only 2.0 in Unicode mode as 1.0 doesn't support Unicode at all
+        //
+        // TODO: RichEdit 3.0 is apparently capable of emulating RichEdit 1.0
+        //       (and thus EDIT) much better than RichEdit 2.0 so we probably
+        //       should use 3.0 if available as it is the best of both worlds -
+        //       but as I can't test it right now I don't do it (VZ)
+#if wxUSE_UNICODE
+        const int verRichEdit = 2;
+#else // !wxUSE_UNICODE
+        int verRichEdit = m_windowStyle & wxTE_RICH2 ? 2 : 1;
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE

 
         // only give the error msg once if the DLL can't be loaded
         if ( !s_errorGiven )
         {
 
         // only give the error msg once if the DLL can't be loaded
         if ( !s_errorGiven )
         {

-            // first try to load the RichEdit DLL (will do nothing if already
-            // done)
-            if ( !wxRichEditModule::Load() )
+            // try to load the RichEdit DLL (will do nothing if already done)
+            if ( !wxRichEditModule::Load(verRichEdit) )

             {
             {

-                wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll"));
+#if !wxUSE_UNICODE
+                // try another version?
+                verRichEdit = 3 - verRichEdit; // 1 <-> 2

 
 

-                s_errorGiven = TRUE;
+                if ( !wxRichEditModule::Load(verRichEdit) )
+#endif // wxUSE_UNICODE
+                {
+                    wxLogError(_("Impossible to create a rich edit control, using simple text control instead. Please reinstall riched32.dll"));
+
+                    s_errorGiven = TRUE;
+                }

             }
         }
 
             }
         }
 

+        // have we managed to load any richedit version?

         if ( !s_errorGiven )
         {
             msStyle |= ES_AUTOVSCROLL;
 
         if ( !s_errorGiven )
         {
             msStyle |= ES_AUTOVSCROLL;
 

-            m_verRichEdit = wxRichEditModule::GetLoadedVersion();
+            m_verRichEdit = verRichEdit;

             if ( m_verRichEdit == 1 )
             {
                 windowClass = wxT("RICHEDIT");
             if ( m_verRichEdit == 1 )
             {
                 windowClass = wxT("RICHEDIT");


@@ -313,7 +346,7 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
     if ( !MSWCreateControl(windowClass, msStyle, pos, size, valueWin) )
         return FALSE;
 
     if ( !MSWCreateControl(windowClass, msStyle, pos, size, valueWin) )
         return FALSE;
 

-    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));

 
 #if wxUSE_RICHEDIT
     if ( IsRich() )
 
 #if wxUSE_RICHEDIT
     if ( IsRich() )


@@ -379,49 +412,77 @@ void wxTextCtrl::AdoptAttributesFromHWND()
 
 wxString wxTextCtrl::GetValue() const
 {
 
 wxString wxTextCtrl::GetValue() const
 {

-    // we can't use wxGetWindowText() (i.e. WM_GETTEXT internally) for
-    // retrieving more than 64Kb under Win9x
+    // range 0..-1 is special for GetRange() and means to retrieve all text
+    return GetRange(0, -1);
+}
+
+wxString wxTextCtrl::GetRange(long from, long to) const
+{
+    wxString str;
+
+    if ( from >= to && to != -1 )
+    {
+        // nothing to retrieve
+        return str;
+    }
+

 #if wxUSE_RICHEDIT
     if ( IsRich() )
     {
 #if wxUSE_RICHEDIT
     if ( IsRich() )
     {

-        wxString str;
-

         int len = GetWindowTextLength(GetHwnd());
         int len = GetWindowTextLength(GetHwnd());

-        if ( len )
+        if ( len > from )

         {
             // alloc one extra WORD as needed by the control
             wxChar *p = str.GetWriteBuf(++len);
 
             TEXTRANGE textRange;
         {
             // alloc one extra WORD as needed by the control
             wxChar *p = str.GetWriteBuf(++len);
 
             TEXTRANGE textRange;

-            textRange.chrg.cpMin = 0;
-            textRange.chrg.cpMax = -1;
+            textRange.chrg.cpMin = from;
+            textRange.chrg.cpMax = to == -1 ? len : to;

             textRange.lpstrText = p;
 
             (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange);
 
             textRange.lpstrText = p;
 
             (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange);
 

-            // believe it or not, but EM_GETTEXTRANGE uses just CR ('\r') for
-            // the newlines which is neither Unix nor Windows style (Win95 with
-            // riched20.dll shows this behaviour) - convert it to something
-            // reasonable
-            for ( ; *p; p++ )
+            if ( m_verRichEdit > 1 )

             {
             {

-                if ( *p == _T('\r') )
-                    *p = _T('\n');
+                // RichEdit 2.0 uses just CR ('\r') for the newlines which is
+                // neither Unix nor Windows style - convert it to something
+                // reasonable
+                for ( ; *p; p++ )
+                {
+                    if ( *p == _T('\r') )
+                        *p = _T('\n');
+                }

             }
 
             str.UngetWriteBuf();
             }
 
             str.UngetWriteBuf();

+
+            if ( m_verRichEdit == 1 )
+            {
+                // convert to the canonical form - see comment below
+                str = wxTextFile::Translate(str, wxTextFileType_Unix);
+            }

         }
         //else: no text at all, leave the string empty
         }
         //else: no text at all, leave the string empty

-
-        return str;

     }
     }

+    else

 #endif // wxUSE_RICHEDIT
 #endif // wxUSE_RICHEDIT

+    {
+        // retrieve all text
+        str = wxGetWindowText(GetHWND());

 
 

-    // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the
-    // same one as above for consitency
-    wxString str = wxGetWindowText(GetHWND());
+        // need only a range?
+        if ( from < to )
+        {
+            str = str.Mid(from, to - from);
+        }

 
 

-    return wxTextFile::Translate(str, wxTextFileType_Unix);
+        // WM_GETTEXT uses standard DOS CR+LF (\r\n) convention - convert to the
+        // canonical one (same one as above) for consistency with the other kinds
+        // of controls and, more importantly, with the other ports
+        str = wxTextFile::Translate(str, wxTextFileType_Unix);
+    }
+
+    return str;

 }
 
 void wxTextCtrl::SetValue(const wxString& value)
 }
 
 void wxTextCtrl::SetValue(const wxString& value)


@@ -432,18 +493,18 @@ void wxTextCtrl::SetValue(const wxString& value)
     // edit controls mostly)
     if ( (value.length() > 0x400) || (value != GetValue()) )
     {
     // edit controls mostly)
     if ( (value.length() > 0x400) || (value != GetValue()) )
     {

-        // it is simpler to do this but it could be more efficient to reproduce
-        // WriteText() logic here
-        Clear();
+        DoWriteText(value, FALSE /* not selection only */);

 
 

-        WriteText(value);
+        // mark the control as being not dirty - we changed its text, not the
+        // user
+        DiscardEdits();

 
         // for compatibility, don't move the cursor when doing SetValue()
         SetInsertionPoint(0);
     }
 }
 
 
         // for compatibility, don't move the cursor when doing SetValue()
         SetInsertionPoint(0);
     }
 }
 

-#if wxUSE_RICHEDIT
+#if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU)

 
 DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
 {
 
 DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
 {


@@ -466,9 +527,17 @@ DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
 
 extern long wxEncodingToCodepage(wxFontEncoding encoding); // from strconv.cpp
 
 
 extern long wxEncodingToCodepage(wxFontEncoding encoding); // from strconv.cpp
 

-bool wxTextCtrl::StreamIn(const wxString& value, wxFontEncoding encoding)
+#if wxUSE_UNICODE_MSLU
+bool wxTextCtrl::StreamIn(const wxString& value,
+                          wxFontEncoding WXUNUSED(encoding),
+                          bool selectionOnly)
+{
+    const wchar_t *wpc = value.c_str();
+#else // !wxUSE_UNICODE_MSLU
+bool wxTextCtrl::StreamIn(const wxString& value,
+                          wxFontEncoding encoding,
+                          bool selectionOnly)

 {
 {

-#if !wxUSE_UNICODE

     // we have to use EM_STREAMIN to force richedit control 2.0+ to show any
     // text in the non default charset - otherwise it thinks it knows better
     // than we do and always shows it in the default one
     // we have to use EM_STREAMIN to force richedit control 2.0+ to show any
     // text in the non default charset - otherwise it thinks it knows better
     // than we do and always shows it in the default one


@@ -483,18 +552,22 @@ bool wxTextCtrl::StreamIn(const wxString& value, wxFontEncoding encoding)
 
     // next translate to Unicode using this code page
     int len = ::MultiByteToWideChar(codepage, 0, value, -1, NULL, 0);
 
     // next translate to Unicode using this code page
     int len = ::MultiByteToWideChar(codepage, 0, value, -1, NULL, 0);

+
+#if wxUSE_WCHAR_T

     wxWCharBuffer wchBuf(len);
     wxWCharBuffer wchBuf(len);

+#else
+    wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t));
+#endif
+

     if ( !::MultiByteToWideChar(codepage, 0, value, -1,
     if ( !::MultiByteToWideChar(codepage, 0, value, -1,

-                                (wchar_t *)wchBuf.data(), len) )
+                                (wchar_t *)(const wchar_t *)wchBuf, len) )

     {
         wxLogLastError(_T("MultiByteToWideChar"));
     }
 
     // finally, stream it in the control
     const wchar_t *wpc = wchBuf;
     {
         wxLogLastError(_T("MultiByteToWideChar"));
     }
 
     // finally, stream it in the control
     const wchar_t *wpc = wchBuf;

-#else
-    const wchar_t *wpc = value.c_str();
-#endif
+#endif // wxUSE_UNICODE_MSLU

 
     EDITSTREAM eds;
     wxZeroMemory(eds);
 
     EDITSTREAM eds;
     wxZeroMemory(eds);


@@ -503,14 +576,18 @@ bool wxTextCtrl::StreamIn(const wxString& value, wxFontEncoding encoding)
     eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn;
 
     if ( !::SendMessage(GetHwnd(), EM_STREAMIN,
     eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn;
 
     if ( !::SendMessage(GetHwnd(), EM_STREAMIN,

-                        SF_TEXT | SF_UNICODE | SFF_SELECTION,
+                        SF_TEXT |
+                        SF_UNICODE |
+                        (selectionOnly ? SFF_SELECTION : 0),

                         (LPARAM)&eds) || eds.dwError )
     {
         wxLogLastError(_T("EM_STREAMIN"));
                         (LPARAM)&eds) || eds.dwError )
     {
         wxLogLastError(_T("EM_STREAMIN"));

-
-        return FALSE;

     }
 
     }
 

+#if !wxUSE_WCHAR_T
+    free(wchBuf);
+#endif // !wxUSE_WCHAR_T
+

     return TRUE;
 }
 
     return TRUE;
 }
 


@@ -518,7 +595,16 @@ bool wxTextCtrl::StreamIn(const wxString& value, wxFontEncoding encoding)
 
 void wxTextCtrl::WriteText(const wxString& value)
 {
 
 void wxTextCtrl::WriteText(const wxString& value)
 {

-    wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
+    DoWriteText(value);
+}
+
+void wxTextCtrl::DoWriteText(const wxString& value, bool selectionOnly)
+{
+    wxString valueDos;
+    if ( m_windowStyle & wxTE_MULTILINE )
+        valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
+    else
+        valueDos = value;

 
 #if wxUSE_RICHEDIT
     // there are several complications with the rich edit controls here
 
 #if wxUSE_RICHEDIT
     // there are several complications with the rich edit controls here


@@ -530,9 +616,19 @@ void wxTextCtrl::WriteText(const wxString& value)
         {
             long start, end;
             GetSelection(&start, &end);
         {
             long start, end;
             GetSelection(&start, &end);

-            SetStyle(start, end, m_defaultStyle );
+            SetStyle(start, end, m_defaultStyle);
+        }
+
+#if wxUSE_UNICODE_MSLU
+        // RichEdit doesn't have Unicode version of EM_REPLACESEL on Win9x,
+        // but EM_STREAMIN works
+        if ( wxGetOsVersion() == wxWIN95 && GetRichVersion() > 1 )
+        {
+           done = StreamIn(valueDos, wxFONTENCODING_SYSTEM, selectionOnly);

         }
         }

+#endif // wxUSE_UNICODE_MSLU

 
 

+#if !wxUSE_UNICODE

         // next check if the text we're inserting must be shown in a non
         // default charset -- this only works for RichEdit > 1.0
         if ( GetRichVersion() > 1 )
         // next check if the text we're inserting must be shown in a non
         // default charset -- this only works for RichEdit > 1.0
         if ( GetRichVersion() > 1 )


@@ -546,15 +642,21 @@ void wxTextCtrl::WriteText(const wxString& value)
                wxFontEncoding encoding = font.GetEncoding();
                if ( encoding != wxFONTENCODING_SYSTEM )
                {
                wxFontEncoding encoding = font.GetEncoding();
                if ( encoding != wxFONTENCODING_SYSTEM )
                {

-                   done = StreamIn(valueDos, encoding);
+                   done = StreamIn(valueDos, encoding, selectionOnly);

                }
             }
         }
                }
             }
         }

+#endif // !wxUSE_UNICODE

     }
 
     if ( !done )
 #endif // wxUSE_RICHEDIT
     {
     }
 
     if ( !done )
 #endif // wxUSE_RICHEDIT
     {

+        if ( !selectionOnly )
+        {
+            SetSelection(-1, -1);
+        }
+

         ::SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str());
     }
 
         ::SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str());
     }
 


@@ -581,8 +683,7 @@ void wxTextCtrl::Copy()
 {
     if (CanCopy())
     {
 {
     if (CanCopy())
     {

-        HWND hWnd = GetHwnd();
-        SendMessage(hWnd, WM_COPY, 0, 0L);
+        ::SendMessage(GetHwnd(), WM_COPY, 0, 0L);

     }
 }
 
     }
 }
 


@@ -590,8 +691,7 @@ void wxTextCtrl::Cut()
 {
     if (CanCut())
     {
 {
     if (CanCut())
     {

-        HWND hWnd = GetHwnd();
-        SendMessage(hWnd, WM_CUT, 0, 0L);
+        ::SendMessage(GetHwnd(), WM_CUT, 0, 0L);

     }
 }
 
     }
 }
 


@@ -599,8 +699,7 @@ void wxTextCtrl::Paste()
 {
     if (CanPaste())
     {
 {
     if (CanPaste())
     {

-        HWND hWnd = GetHwnd();
-        SendMessage(hWnd, WM_PASTE, 0, 0L);
+        ::SendMessage(GetHwnd(), WM_PASTE, 0, 0L);

     }
 }
 
     }
 }
 


@@ -608,16 +707,13 @@ bool wxTextCtrl::CanCopy() const
 {
     // Can copy if there's a selection
     long from, to;
 {
     // Can copy if there's a selection
     long from, to;

-    GetSelection(& from, & to);
-    return (from != to) ;
+    GetSelection(&from, &to);
+    return from != to;

 }
 
 bool wxTextCtrl::CanCut() const
 {
 }
 
 bool wxTextCtrl::CanCut() const
 {

-    // Can cut if there's a selection
-    long from, to;
-    GetSelection(& from, & to);
-    return (from != to) && (IsEditable());
+    return CanCopy() && IsEditable();

 }
 
 bool wxTextCtrl::CanPaste() const
 }
 
 bool wxTextCtrl::CanPaste() const


@@ -656,20 +752,25 @@ void wxTextCtrl::SetEditable(bool editable)
 
 void wxTextCtrl::SetInsertionPoint(long pos)
 {
 
 void wxTextCtrl::SetInsertionPoint(long pos)
 {

-    SetSelection(pos, pos);
+    DoSetSelection(pos, pos);
+}
+
+void wxTextCtrl::SetInsertionPointEnd()
+{
+    long pos;

 
 #if wxUSE_RICHEDIT
 
 #if wxUSE_RICHEDIT

-    if ( !IsRich() )
-#endif
+    if ( m_verRichEdit == 1 )

     {
     {

-        static const wxChar *nothing = _T("");
-        SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)nothing);
+        // we don't have to waste time calling GetLastPosition() in this case
+        pos = -1;
+    }
+    else // !RichEdit 1.0
+#endif // wxUSE_RICHEDIT
+    {
+        pos = GetLastPosition();

     }
     }

-}

 
 

-void wxTextCtrl::SetInsertionPointEnd()
-{
-    long pos = GetLastPosition();

     SetInsertionPoint(pos);
 }
 
     SetInsertionPoint(pos);
 }
 


@@ -692,19 +793,12 @@ long wxTextCtrl::GetInsertionPoint() const
 
 long wxTextCtrl::GetLastPosition() const
 {
 
 long wxTextCtrl::GetLastPosition() const
 {

-    HWND hWnd = GetHwnd();
-
-    // Will always return a number > 0 (according to docs)
-    int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
+    int numLines = GetNumberOfLines();
+    long posStartLastLine = XYToPosition(0, numLines - 1);

 
 

-    // This gets the char index for the _beginning_ of the last line
-    int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
+    long lenLastLine = GetLengthOfLineContainingPos(posStartLastLine);

 
 

-    // Get number of characters in the last line. We'll add this to the character
-    // index for the last line, 1st position.
-    int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
-
-    return (long)(charIndex + lineLength);
+    return posStartLastLine + lenLastLine;

 }
 
 // If the return values from and to are the same, there is no
 }
 
 // If the return values from and to are the same, there is no


@@ -731,39 +825,11 @@ void wxTextCtrl::GetSelection(long* from, long* to) const
     }
 }
 
     }
 }
 

-wxString wxTextCtrl::GetStringSelection() const
-{
-    // the base class version works correctly for the rich text controls
-    // because there the lines are terminated with just '\r' which means that
-    // the string length is not changed in the result of the translations doen
-    // in GetValue() but for the normal ones when we replace "\r\n" with '\n'
-    // we break the indices
-#if wxUSE_RICHEDIT
-    if ( IsRich() )
-        return wxTextCtrlBase::GetStringSelection();
-#endif // wxUSE_RICHEDIT
-
-    long from, to;
-    GetSelection(&from, &to);
-
-    wxString str;
-    if ( from < to )
-    {
-        str = wxGetWindowText(GetHWND()).Mid(from, to - from);
-
-        // and now that we have the correct selection, convert it to the
-        // correct format
-        str = wxTextFile::Translate(str, wxTextFileType_Unix);
-    }
-
-    return str;
-}
-

 bool wxTextCtrl::IsEditable() const
 {
     long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
 
 bool wxTextCtrl::IsEditable() const
 {
     long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
 

-    return ((style & ES_READONLY) == 0);
+    return (style & ES_READONLY) == 0;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -771,11 +837,6 @@ bool wxTextCtrl::IsEditable() const
 // ----------------------------------------------------------------------------
 
 void wxTextCtrl::SetSelection(long from, long to)
 // ----------------------------------------------------------------------------
 
 void wxTextCtrl::SetSelection(long from, long to)

-{
-    DoSetSelection(from, to);
-}
-
-void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret)

 {
     // if from and to are both -1, it means (in wxWindows) that all text should
     // be selected - translate into Windows convention
 {
     // if from and to are both -1, it means (in wxWindows) that all text should
     // be selected - translate into Windows convention


@@ -785,6 +846,11 @@ void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret)
         to = -1;
     }
 
         to = -1;
     }
 

+    DoSetSelection(from, to);
+}
+
+void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret)
+{

     HWND hWnd = GetHwnd();
 
 #ifdef __WIN32__
     HWND hWnd = GetHwnd();
 
 #ifdef __WIN32__


@@ -819,7 +885,7 @@ void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret)
 void wxTextCtrl::Replace(long from, long to, const wxString& value)
 {
     // Set selection and remove it
 void wxTextCtrl::Replace(long from, long to, const wxString& value)
 {
     // Set selection and remove it

-    DoSetSelection(from, to, FALSE);
+    DoSetSelection(from, to, FALSE /* don't scroll caret into view */);

 
     SendMessage(GetHwnd(), EM_REPLACESEL,
 #ifdef __WIN32__
 
     SendMessage(GetHwnd(), EM_REPLACESEL,
 #ifdef __WIN32__


@@ -850,7 +916,7 @@ bool wxTextCtrl::LoadFile(const wxString& file)
 
 bool wxTextCtrl::IsModified() const
 {
 
 bool wxTextCtrl::IsModified() const
 {

-    return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0);
+    return SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0;

 }
 
 // Makes 'unmodified'
 }
 
 // Makes 'unmodified'


@@ -866,11 +932,10 @@ int wxTextCtrl::GetNumberOfLines() const
 
 long wxTextCtrl::XYToPosition(long x, long y) const
 {
 
 long wxTextCtrl::XYToPosition(long x, long y) const
 {

-    HWND hWnd = GetHwnd();
-

     // This gets the char index for the _beginning_ of this line
     // This gets the char index for the _beginning_ of this line

-    int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)y, (LPARAM)0);
-    return (long)(x + charIndex);
+    long charIndex = SendMessage(GetHwnd(), EM_LINEINDEX, (WPARAM)y, (LPARAM)0);
+
+    return charIndex + x;

 }
 
 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
 }
 
 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const


@@ -878,15 +943,17 @@ bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
     HWND hWnd = GetHwnd();
 
     // This gets the line number containing the character
     HWND hWnd = GetHwnd();
 
     // This gets the line number containing the character

-    int lineNo;
+    long lineNo;

 #if wxUSE_RICHEDIT
     if ( IsRich() )
     {
 #if wxUSE_RICHEDIT
     if ( IsRich() )
     {

-        lineNo = (int)SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos);
+        lineNo = SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos);

     }
     else
 #endif // wxUSE_RICHEDIT
     }
     else
 #endif // wxUSE_RICHEDIT

-        lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0);
+    {
+        lineNo = SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0);
+    }

 
     if ( lineNo == -1 )
     {
 
     if ( lineNo == -1 )
     {


@@ -895,7 +962,7 @@ bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
     }
 
     // This gets the char index for the _beginning_ of this line
     }
 
     // This gets the char index for the _beginning_ of this line

-    int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0);
+    long charIndex = SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0);

     if ( charIndex == -1 )
     {
         return FALSE;
     if ( charIndex == -1 )
     {
         return FALSE;


@@ -903,9 +970,9 @@ bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
 
     // The X position must therefore be the different between pos and charIndex
     if ( x )
 
     // The X position must therefore be the different between pos and charIndex
     if ( x )

-        *x = (long)(pos - charIndex);
+        *x = pos - charIndex;

     if ( y )
     if ( y )

-        *y = (long)lineNo;
+        *y = lineNo;

 
     return TRUE;
 }
 
     return TRUE;
 }


@@ -935,11 +1002,16 @@ void wxTextCtrl::ShowPosition(long pos)
       (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll);
 }
 
       (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll);
 }
 

+long wxTextCtrl::GetLengthOfLineContainingPos(long pos) const
+{
+    return ::SendMessage(GetHwnd(), EM_LINELENGTH, (WPARAM)pos, 0);
+}
+

 int wxTextCtrl::GetLineLength(long lineNo) const
 {
 int wxTextCtrl::GetLineLength(long lineNo) const
 {

-    long charIndex = XYToPosition(0, lineNo);
-    int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0);
-    return len;
+    long pos = XYToPosition(0, lineNo);
+
+    return GetLengthOfLineContainingPos(pos);

 }
 
 wxString wxTextCtrl::GetLineText(long lineNo) const
 }
 
 wxString wxTextCtrl::GetLineText(long lineNo) const


@@ -990,12 +1062,12 @@ void wxTextCtrl::Redo()
 
 bool wxTextCtrl::CanUndo() const
 {
 
 bool wxTextCtrl::CanUndo() const
 {

-    return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);
+    return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0;

 }
 
 bool wxTextCtrl::CanRedo() const
 {
 }
 
 bool wxTextCtrl::CanRedo() const
 {

-    return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);
+    return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -1179,7 +1251,7 @@ WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSE
     wxColour colBack = GetBackgroundColour();
 
     if (!IsEnabled() && (GetWindowStyle() & wxTE_MULTILINE) == 0)
     wxColour colBack = GetBackgroundColour();
 
     if (!IsEnabled() && (GetWindowStyle() & wxTE_MULTILINE) == 0)

-        colBack = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
+        colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);

 
     ::SetBkColor(hdc, wxColourToRGB(colBack));
     ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
 
     ::SetBkColor(hdc, wxColourToRGB(colBack));
     ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));


@@ -1198,15 +1270,13 @@ void wxTextCtrl::OnEraseBackground(wxEraseEvent& event)
 
 #if wxUSE_CTL3D
     if (m_useCtl3D)
 
 #if wxUSE_CTL3D
     if (m_useCtl3D)

-        col = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW);
+        col = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);

 #endif
 
     RECT rect;
     ::GetClientRect(GetHwnd(), &rect);
 
 #endif
 
     RECT rect;
     ::GetClientRect(GetHwnd(), &rect);
 

-    COLORREF ref = PALETTERGB(col.Red(),
-                              col.Green(),
-                              col.Blue());
+    COLORREF ref = wxColourToRGB(col);

     HBRUSH hBrush = ::CreateSolidBrush(ref);
     if ( !hBrush )
         wxLogLastError(wxT("CreateSolidBrush"));
     HBRUSH hBrush = ::CreateSolidBrush(ref);
     if ( !hBrush )
         wxLogLastError(wxT("CreateSolidBrush"));


@@ -1422,11 +1492,6 @@ bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 // colour setting for the rich edit controls
 // ----------------------------------------------------------------------------
 
 // colour setting for the rich edit controls
 // ----------------------------------------------------------------------------
 

-// Watcom C++ doesn't define this
-#ifndef SCF_ALL
-#define SCF_ALL 0x0004
-#endif
-

 bool wxTextCtrl::SetBackgroundColour(const wxColour& colour)
 {
     if ( !wxTextCtrlBase::SetBackgroundColour(colour) )
 bool wxTextCtrl::SetBackgroundColour(const wxColour& colour)
 {
     if ( !wxTextCtrlBase::SetBackgroundColour(colour) )


@@ -1479,10 +1544,9 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
         return FALSE;
     }
 
         return FALSE;
     }
 

-    // the rich text control doesn't handle setting background colour, so don't
-    // even try if it's the only thing we want to change
-    if ( wxRichEditModule::GetLoadedVersion() < 2 &&
-         !style.HasFont() && !style.HasTextColour() )
+    // the richedit 1.0 doesn't handle setting background colour, so don't
+    // even try to do anything if it's the only thing we want to change
+    if ( m_verRichEdit == 1 && !style.HasFont() && !style.HasTextColour() )

     {
         // nothing to do: return TRUE if there was really nothing to do and
         // FALSE if we failed to set bg colour
     {
         // nothing to do: return TRUE if there was really nothing to do and
         // FALSE if we failed to set bg colour


@@ -1507,7 +1571,7 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
 
     if ( changeSel )
     {
 
     if ( changeSel )
     {

-        DoSetSelection(start, end, FALSE);
+        DoSetSelection(start, end, FALSE /* don't scroll caret into view */);

     }
 
     // initialize CHARFORMAT struct
     }
 
     // initialize CHARFORMAT struct


@@ -1516,8 +1580,23 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
 #else
     CHARFORMAT cf;
 #endif
 #else
     CHARFORMAT cf;
 #endif

+

     wxZeroMemory(cf);
     wxZeroMemory(cf);

-    cf.cbSize = sizeof(cf);
+
+    // we can't use CHARFORMAT2 with RichEdit 1.0, so pretend it is a simple
+    // CHARFORMAT in that case
+#if wxUSE_RICHEDIT2
+    if ( m_verRichEdit == 1 )
+    {
+        // this is the only thing the control is going to grok
+        cf.cbSize = sizeof(CHARFORMAT);
+    }
+    else
+#endif
+    {
+        // CHARFORMAT or CHARFORMAT2
+        cf.cbSize = sizeof(cf);
+    }

 
     if ( style.HasFont() )
     {
 
     if ( style.HasFont() )
     {


@@ -1566,7 +1645,7 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
     }
 
 #if wxUSE_RICHEDIT2
     }
 
 #if wxUSE_RICHEDIT2

-    if ( wxRichEditModule::GetLoadedVersion() > 1 && style.HasBackgroundColour() )
+    if ( m_verRichEdit != 1 && style.HasBackgroundColour() )

     {
         cf.dwMask |= CFM_BACKCOLOR;
         cf.crBackColor = wxColourToRGB(style.GetBackgroundColour());
     {
         cf.dwMask |= CFM_BACKCOLOR;
         cf.crBackColor = wxColourToRGB(style.GetBackgroundColour());


@@ -1602,48 +1681,48 @@ bool wxRichEditModule::OnInit()
 
 void wxRichEditModule::OnExit()
 {
 
 void wxRichEditModule::OnExit()
 {

-    if ( ms_hRichEdit )
+    for ( int i = 0; i < WXSIZEOF(ms_hRichEdit); i++ )

     {
     {

-        FreeLibrary(ms_hRichEdit);
+        if ( ms_hRichEdit[i] )
+        {
+            ::FreeLibrary(ms_hRichEdit[i]);
+        }

     }
 }
 
 /* static */
 bool wxRichEditModule::Load(int version)
 {
     }
 }
 
 /* static */
 bool wxRichEditModule::Load(int version)
 {

-    wxCHECK_MSG( version >= 1 && version <= 3, FALSE,
+    // we don't support loading richedit 3.0 as I don't know how to distinguish
+    // it from 2.0 anyhow
+    wxCHECK_MSG( version == 1 || version == 2, FALSE,

                  _T("incorrect richedit control version requested") );
 
                  _T("incorrect richedit control version requested") );
 

-    if ( version <= ms_verRichEdit )
+    // make it the index in the array
+    version--;
+
+    if ( ms_hRichEdit[version] == (HINSTANCE)-1 )

     {
     {

-        // we've already got this or better
-        return TRUE;
+        // we had already tried to load it and failed
+        return FALSE;

     }
 
     }
 

-    if ( ms_hRichEdit )
+    if ( ms_hRichEdit[version] )

     {
     {

-        ::FreeLibrary(ms_hRichEdit);
+        // we've already got this one
+        return TRUE;

     }
 
     }
 

-    // always try load riched20.dll first - like this we won't have to reload
-    // it later if we're first asked for RE 1 and then for RE 2 or 3
-    wxString dllname = _T("riched20.dll");
-    ms_hRichEdit = ::LoadLibrary(dllname);
-    ms_verRichEdit = 2; // no way to tell if it's 2 or 3, assume 2
+    wxString dllname = version ? _T("riched20") : _T("riched32");
+    dllname += _T(".dll");

 
 

-    if ( !ms_hRichEdit && (version == 1) )
-    {
-        // fall back to RE 1
-        dllname = _T("riched32.dll");
-        ms_hRichEdit = ::LoadLibrary(dllname);
-        ms_verRichEdit = 1;
-    }
+    ms_hRichEdit[version] = ::LoadLibrary(dllname);

 
 

-    if ( !ms_hRichEdit )
+    if ( !ms_hRichEdit[version] )

     {
         wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str());
 
     {
         wxLogSysError(_("Could not load Rich Edit DLL '%s'"), dllname.c_str());
 

-        ms_verRichEdit = -1;
+        ms_hRichEdit[version] = (HINSTANCE)-1;

 
         return FALSE;
     }
 
         return FALSE;
     }