use wxColourDatabase::Find() instead of deprecated FindColour(); some minor code...

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

diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp
index 8b901fa1071e588f4e66706fa4770f1131300de5..7dd6a84fcfc42c2de707c7a87a0f025cf8046b56 100644 (file)
--- a/src/msw/textctrl.cpp
+++ b/src/msw/textctrl.cpp
@@ -13,7 +13,7 @@
 // declarations
 // ============================================================================
 
 // declarations
 // ============================================================================
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

     #pragma implementation "textctrl.h"
 #endif
 
     #pragma implementation "textctrl.h"
 #endif
 


@@ -52,10 +52,14 @@
 #include <windowsx.h>
 
 #include "wx/msw/private.h"
 #include <windowsx.h>
 
 #include "wx/msw/private.h"

+#include "wx/msw/winundef.h"

 
 #include <string.h>
 #include <stdlib.h>
 
 #include <string.h>
 #include <stdlib.h>

+
+#ifndef __WXWINCE__

 #include <sys/types.h>
 #include <sys/types.h>

+#endif

 
 #if wxUSE_RICHEDIT
 
 
 #if wxUSE_RICHEDIT
 


@@ -69,16 +73,6 @@
 
 #endif // wxUSE_RICHEDIT
 
 
 #endif // wxUSE_RICHEDIT
 

-// ----------------------------------------------------------------------------
-// private functions
-// ----------------------------------------------------------------------------
-
-#if wxUSE_RICHEDIT
-
-DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb);
-
-#endif // wxUSE_RICHEDIT
-

 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------


@@ -112,7 +106,75 @@ IMPLEMENT_DYNAMIC_CLASS(wxRichEditModule, wxModule)
 // event tables and other macros
 // ----------------------------------------------------------------------------
 
 // event tables and other macros
 // ----------------------------------------------------------------------------
 

+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxTextCtrlStyle )
+
+wxBEGIN_FLAGS( wxTextCtrlStyle )
+    // new style border flags, we put them first to
+    // use them for streaming out
+    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+    wxFLAGS_MEMBER(wxBORDER_RAISED)
+    wxFLAGS_MEMBER(wxBORDER_STATIC)
+    wxFLAGS_MEMBER(wxBORDER_NONE)
+    
+    // old style border flags
+    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+    wxFLAGS_MEMBER(wxRAISED_BORDER)
+    wxFLAGS_MEMBER(wxSTATIC_BORDER)
+    wxFLAGS_MEMBER(wxBORDER)
+
+    // standard window styles
+    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
+    wxFLAGS_MEMBER(wxWANTS_CHARS)
+    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
+    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
+    wxFLAGS_MEMBER(wxVSCROLL)
+    wxFLAGS_MEMBER(wxHSCROLL)
+
+    wxFLAGS_MEMBER(wxTE_PROCESS_ENTER)
+    wxFLAGS_MEMBER(wxTE_PROCESS_TAB)
+    wxFLAGS_MEMBER(wxTE_MULTILINE)
+    wxFLAGS_MEMBER(wxTE_PASSWORD)
+    wxFLAGS_MEMBER(wxTE_READONLY)
+    wxFLAGS_MEMBER(wxHSCROLL)
+    wxFLAGS_MEMBER(wxTE_RICH)
+    wxFLAGS_MEMBER(wxTE_RICH2)
+    wxFLAGS_MEMBER(wxTE_AUTO_URL)
+    wxFLAGS_MEMBER(wxTE_NOHIDESEL)
+    wxFLAGS_MEMBER(wxTE_LEFT)
+    wxFLAGS_MEMBER(wxTE_CENTRE)
+    wxFLAGS_MEMBER(wxTE_RIGHT)
+    wxFLAGS_MEMBER(wxTE_DONTWRAP)
+    wxFLAGS_MEMBER(wxTE_LINEWRAP)
+    wxFLAGS_MEMBER(wxTE_WORDWRAP)
+
+wxEND_FLAGS( wxTextCtrlStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxTextCtrl, wxControl,"wx/textctrl.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxTextCtrl)
+    wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent ) 
+    wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
+
+    wxPROPERTY( Font , wxFont , SetFont , GetFont  ,, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+       wxPROPERTY( Value , wxString , SetValue, GetValue, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY_FLAGS( WindowStyle , wxTextCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxTextCtrl)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_6( wxTextCtrl , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size , long , WindowStyle)
+#else

 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl)

+#endif
+

 
 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
     EVT_CHAR(wxTextCtrl::OnChar)
 
 BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
     EVT_CHAR(wxTextCtrl::OnChar)


@@ -140,6 +202,8 @@ BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
 #ifdef __WIN16__
     EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground)
 #endif
 #ifdef __WIN16__
     EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground)
 #endif

+
+    EVT_SET_FOCUS(wxTextCtrl::OnSetFocus)

 END_EVENT_TABLE()
 
 // ============================================================================
 END_EVENT_TABLE()
 
 // ============================================================================


@@ -158,6 +222,7 @@ void wxTextCtrl::Init()
 
     m_privateContextMenu = NULL;
     m_suppressNextUpdate = FALSE;
 
     m_privateContextMenu = NULL;
     m_suppressNextUpdate = FALSE;

+    m_isNativeCaretShown = true;

 }
 
 wxTextCtrl::~wxTextCtrl()
 }
 
 wxTextCtrl::~wxTextCtrl()


@@ -389,11 +454,12 @@ WXDWORD wxTextCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
         msStyle |= ES_AUTOHSCROLL;
     }
 
         msStyle |= ES_AUTOHSCROLL;
     }
 

-    // styles which we add depending on the specified wxWindows styles
-    if ( style & wxHSCROLL )
+    // note that wxTE_DONTWRAP is the same as wxHSCROLL so if we have a horz
+    // scrollbar, there is no wrapping -- which makes sense
+    if ( style & wxTE_DONTWRAP )

     {
         // automatically scroll the control horizontally as necessary
     {
         // automatically scroll the control horizontally as necessary

-        msStyle |= WS_HSCROLL;// | ES_AUTOHSCROLL;
+        msStyle |= WS_HSCROLL;

     }
 
     if ( style & wxTE_READONLY )
     }
 
     if ( style & wxTE_READONLY )


@@ -411,7 +477,7 @@ WXDWORD wxTextCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
     else if ( style & wxTE_RIGHT )
         msStyle |= ES_RIGHT;
     else
     else if ( style & wxTE_RIGHT )
         msStyle |= ES_RIGHT;
     else

-        msStyle |= ES_LEFT; // ES_LEFT if 0 as well but for consistency...
+        msStyle |= ES_LEFT; // ES_LEFT is 0 as well but for consistency...

 
     return msStyle;
 }
 
     return msStyle;
 }


@@ -461,29 +527,77 @@ wxString wxTextCtrl::GetRange(long from, long to) const
         int len = GetWindowTextLength(GetHwnd());
         if ( len > from )
         {
         int len = GetWindowTextLength(GetHwnd());
         if ( len > from )
         {

-            // alloc one extra WORD as needed by the control
-            wxChar *p = str.GetWriteBuf(++len);
+            if ( to == -1 )
+                to = len;

 
 

-            TEXTRANGE textRange;
-            textRange.chrg.cpMin = from;
-            textRange.chrg.cpMax = to == -1 ? len : to;
-            textRange.lpstrText = p;
+#if !wxUSE_UNICODE
+            // we must use EM_STREAMOUT if we don't want to lose all characters
+            // not representable in the current character set (EM_GETTEXTRANGE
+            // simply replaces them with question marks...)
+            if ( GetRichVersion() > 1 )
+            {
+                // we must have some encoding, otherwise any 8bit chars in the
+                // control are simply *lost* (replaced by '?')
+                wxFontEncoding encoding = wxFONTENCODING_SYSTEM;

 
 

-            (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange);
+                wxFont font = m_defaultStyle.GetFont();
+                if ( !font.Ok() )
+                    font = GetFont();

 
 

-            if ( m_verRichEdit > 1 )
-            {
-                // 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 ( font.Ok() )

                 {
                 {

-                    if ( *p == _T('\r') )
-                        *p = _T('\n');
+                   encoding = font.GetEncoding();
+                }
+
+                if ( encoding == wxFONTENCODING_SYSTEM )
+                {
+                    encoding = wxLocale::GetSystemEncoding();
+                }
+
+                if ( encoding == wxFONTENCODING_SYSTEM )
+                {
+                    encoding = wxFONTENCODING_ISO8859_1;
+                }
+
+                str = StreamOut(encoding);
+
+                if ( !str.empty() )
+                {
+                    // we have to manually extract the required part, luckily
+                    // this is easy in this case as EOL characters in str are
+                    // just LFs because we remove CRs in wxRichEditStreamOut
+                    str = str.Mid(from, to - from);

                 }
             }
 
                 }
             }
 

-            str.UngetWriteBuf();
+            // StreamOut() wasn't used or failed, try to do it in normal way
+            if ( str.empty() )
+#endif // !wxUSE_UNICODE
+            {
+                // alloc one extra WORD as needed by the control
+                wxStringBuffer tmp(str, ++len);
+                wxChar *p = tmp;
+
+                TEXTRANGE textRange;
+                textRange.chrg.cpMin = from;
+                textRange.chrg.cpMax = to;
+                textRange.lpstrText = p;
+
+                (void)SendMessage(GetHwnd(), EM_GETTEXTRANGE,
+                                  0, (LPARAM)&textRange);
+
+                if ( m_verRichEdit > 1 )
+                {
+                    // 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');
+                    }
+                }
+            }

 
             if ( m_verRichEdit == 1 )
             {
 
             if ( m_verRichEdit == 1 )
             {


@@ -523,6 +637,14 @@ void wxTextCtrl::SetValue(const wxString& value)
     if ( (value.length() > 0x400) || (value != GetValue()) )
     {
         DoWriteText(value, FALSE /* not selection only */);
     if ( (value.length() > 0x400) || (value != GetValue()) )
     {
         DoWriteText(value, FALSE /* not selection only */);

+        
+        // for compatibility, don't move the cursor when doing SetValue()
+        SetInsertionPoint(0);
+    }
+    else // same text
+    {
+        // still send an event for consistency
+        SendUpdateEvent();

     }
 
     // we should reset the modified flag even if the value didn't really change
     }
 
     // we should reset the modified flag even if the value didn't really change


@@ -530,19 +652,21 @@ void wxTextCtrl::SetValue(const wxString& value)
     // mark the control as being not dirty - we changed its text, not the
     // user
     DiscardEdits();
     // 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);

 }
 
 #if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU)
 
 }
 
 #if wxUSE_RICHEDIT && (!wxUSE_UNICODE || wxUSE_UNICODE_MSLU)
 

-DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
+// TODO: using memcpy() would improve performance a lot for big amounts of text
+
+DWORD CALLBACK
+wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)

 {
     *pcb = 0;
 
 {
     *pcb = 0;
 

+    const wchar_t ** const ppws = (const wchar_t **)dwCookie;
+

     wchar_t *wbuf = (wchar_t *)buf;
     wchar_t *wbuf = (wchar_t *)buf;

-    const wchar_t *wpc = *(const wchar_t **)dwCookie;
+    const wchar_t *wpc = *ppws;

     while ( cb && *wpc )
     {
         *wbuf++ = *wpc++;
     while ( cb && *wpc )
     {
         *wbuf++ = *wpc++;


@@ -551,56 +675,77 @@ DWORD CALLBACK wxRichEditStreamIn(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)
         (*pcb) += sizeof(wchar_t);
     }
 
         (*pcb) += sizeof(wchar_t);
     }
 

-    *(const wchar_t **)dwCookie = wpc;
+    *ppws = wpc;

 
     return 0;
 }
 
 
     return 0;
 }
 

-// from utils.cpp
-extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding);
-
-#if wxUSE_UNICODE_MSLU
-bool wxTextCtrl::StreamIn(const wxString& value,
-                          wxFontEncoding WXUNUSED(encoding),
-                          bool selectionOnly)
+// helper struct used to pass parameters from wxTextCtrl to wxRichEditStreamOut
+struct wxStreamOutData

 {
 {

-    const wchar_t *wpc = value.c_str();
-#else // !wxUSE_UNICODE_MSLU
-bool wxTextCtrl::StreamIn(const wxString& value,
-                          wxFontEncoding encoding,
-                          bool selectionOnly)
+    wchar_t *wpc;
+    size_t len;
+};
+
+DWORD CALLBACK
+wxRichEditStreamOut(DWORD dwCookie, BYTE *buf, LONG cb, LONG *pcb)

 {
 {

-    // 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
+    *pcb = 0;
+
+    wxStreamOutData *data = (wxStreamOutData *)dwCookie;

 
 

-    // first get the Windows code page for this encoding
-    long codepage = wxEncodingToCodepage(encoding);
-    if ( codepage == -1 )
+    const wchar_t *wbuf = (const wchar_t *)buf;
+    wchar_t *wpc = data->wpc;
+    while ( cb )

     {
     {

-        // unknown encoding
-        return FALSE;
+        wchar_t wch = *wbuf++;
+
+        // turn "\r\n" into "\n" on the fly
+        if ( wch != L'\r' )
+            *wpc++ = wch;
+        else
+            data->len--;
+
+        cb -= sizeof(wchar_t);
+        (*pcb) += sizeof(wchar_t);

     }
 
     }
 

-    // next translate to Unicode using this code page
-    int len = ::MultiByteToWideChar(codepage, 0, value, -1, NULL, 0);
+    data->wpc = wpc;
+
+    return 0;
+}
+
+
+#if wxUSE_UNICODE_MSLU
+    #define UNUSED_IF_MSLU(param)
+#else
+    #define UNUSED_IF_MSLU(param) param
+#endif
+
+bool
+wxTextCtrl::StreamIn(const wxString& value,
+                     wxFontEncoding UNUSED_IF_MSLU(encoding),
+                     bool selectionOnly)
+{
+#if wxUSE_UNICODE_MSLU
+    const wchar_t *wpc = value.c_str();
+#else // !wxUSE_UNICODE_MSLU
+    wxCSConv conv(encoding);
+
+    const size_t len = conv.MB2WC(NULL, value, value.length());

 
 #if wxUSE_WCHAR_T
     wxWCharBuffer wchBuf(len);
 
 #if wxUSE_WCHAR_T
     wxWCharBuffer wchBuf(len);

+    wchar_t *wpc = wchBuf.data();

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

+    wchar_t *wpc = wchBuf;

 #endif
 
 #endif
 

-    if ( !::MultiByteToWideChar(codepage, 0, value, -1,
-                                (wchar_t *)(const wchar_t *)wchBuf, len) )
-    {
-        wxLogLastError(_T("MultiByteToWideChar"));
-    }
-
-    // finally, stream it in the control
-    const wchar_t *wpc = wchBuf;
+    conv.MB2WC(wpc, value, value.length());

 #endif // wxUSE_UNICODE_MSLU
 
 #endif // wxUSE_UNICODE_MSLU
 

+    // finally, stream it in the control

     EDITSTREAM eds;
     wxZeroMemory(eds);
     eds.dwCookie = (DWORD)&wpc;
     EDITSTREAM eds;
     wxZeroMemory(eds);
     eds.dwCookie = (DWORD)&wpc;


@@ -633,6 +778,69 @@ bool wxTextCtrl::StreamIn(const wxString& value,
     return TRUE;
 }
 
     return TRUE;
 }
 

+#if !wxUSE_UNICODE_MSLU
+
+wxString
+wxTextCtrl::StreamOut(wxFontEncoding encoding, bool selectionOnly) const
+{
+    wxString out;
+
+    const int len = GetWindowTextLength(GetHwnd());
+
+#if wxUSE_WCHAR_T
+    wxWCharBuffer wchBuf(len);
+    wchar_t *wpc = wchBuf.data();
+#else
+    wchar_t *wchBuf = (wchar_t *)malloc((len + 1)*sizeof(wchar_t));
+    wchar_t *wpc = wchBuf;
+#endif
+
+    wxStreamOutData data;
+    data.wpc = wpc;
+    data.len = len;
+
+    EDITSTREAM eds;
+    wxZeroMemory(eds);
+    eds.dwCookie = (DWORD)&data;
+    eds.pfnCallback = wxRichEditStreamOut;
+
+    ::SendMessage
+      (
+        GetHwnd(),
+        EM_STREAMOUT,
+        SF_TEXT | SF_UNICODE | (selectionOnly ? SFF_SELECTION : 0),
+        (LPARAM)&eds
+      );
+
+    if ( eds.dwError )
+    {
+        wxLogLastError(_T("EM_STREAMOUT"));
+    }
+    else // streamed out ok
+    {
+        // NUL-terminate the string because its length could have been
+        // decreased by wxRichEditStreamOut
+        *(wchBuf.data() + data.len) = L'\0';
+
+        // now convert to the given encoding (this is a possibly lossful
+        // conversion but what else can we do)
+        wxCSConv conv(encoding);
+        size_t lenNeeded = conv.WC2MB(NULL, wchBuf, 0);
+        if ( lenNeeded++ )
+        {
+            conv.WC2MB(wxStringBuffer(out, lenNeeded), wchBuf, lenNeeded);
+        }
+    }
+
+#if !wxUSE_WCHAR_T
+    free(wchBuf);
+#endif // !wxUSE_WCHAR_T
+
+    return out;
+}
+
+#endif // !wxUSE_UNICODE_MSLU
+

 #endif // wxUSE_RICHEDIT
 
 void wxTextCtrl::WriteText(const wxString& value)
 #endif // wxUSE_RICHEDIT
 
 void wxTextCtrl::WriteText(const wxString& value)


@@ -684,6 +892,10 @@ void wxTextCtrl::DoWriteText(const wxString& value, bool selectionOnly)
                wxFontEncoding encoding = font.GetEncoding();
                if ( encoding != wxFONTENCODING_SYSTEM )
                {
                wxFontEncoding encoding = font.GetEncoding();
                if ( encoding != wxFONTENCODING_SYSTEM )
                {

+                   // 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

                    done = StreamIn(valueDos, encoding, selectionOnly);
                }
             }
                    done = StreamIn(valueDos, encoding, selectionOnly);
                }
             }


@@ -749,7 +961,7 @@ void wxTextCtrl::AppendText(const wxString& text)
 
 void wxTextCtrl::Clear()
 {
 
 void wxTextCtrl::Clear()
 {

-    ::SetWindowText(GetHwnd(), wxT(""));
+    ::SetWindowText(GetHwnd(), wxEmptyString);

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


@@ -1053,18 +1265,12 @@ void wxTextCtrl::Replace(long from, long to, const wxString& value)
     // Set selection and remove it
     DoSetSelection(from, to, FALSE /* don't scroll caret into view */);
 
     // Set selection and remove it
     DoSetSelection(from, to, FALSE /* don't scroll caret into view */);
 

-    SendMessage(GetHwnd(), EM_REPLACESEL,
-#ifdef __WIN32__
-                TRUE,
-#else
-                FALSE,
-#endif
-                (LPARAM)value.c_str());
+    DoWriteText(value, TRUE /* selection only */);

 }
 
 void wxTextCtrl::Remove(long from, long to)
 {
 }
 
 void wxTextCtrl::Remove(long from, long to)
 {

-    Replace(from, to, _T(""));
+    Replace(from, to, wxEmptyString);

 }
 
 bool wxTextCtrl::LoadFile(const wxString& file)
 }
 
 bool wxTextCtrl::LoadFile(const wxString& file)


@@ -1085,7 +1291,11 @@ bool wxTextCtrl::IsModified() const
     return SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0;
 }
 
     return SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0;
 }
 

-// Makes 'unmodified'
+void wxTextCtrl::MarkDirty()
+{
+    SendMessage(GetHwnd(), EM_SETMODIFY, TRUE, 0L);
+}
+

 void wxTextCtrl::DiscardEdits()
 {
     SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);
 void wxTextCtrl::DiscardEdits()
 {
     SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);


@@ -1189,13 +1399,36 @@ wxString wxTextCtrl::GetLineText(long lineNo) const
     len += sizeof(WORD);
 
     wxString str;
     len += sizeof(WORD);
 
     wxString str;

-    wxChar *buf = str.GetWriteBuf(len);
+    {
+        wxStringBufferLength tmp(str, len);
+        wxChar *buf = tmp;
+
+        *(WORD *)buf = (WORD)len;
+        len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
+
+#if wxUSE_RICHEDIT
+        if ( IsRich() )
+        {
+            // remove the '\r' returned by the rich edit control, the user code
+            // should never see it
+            if ( buf[len - 2] == _T('\r') && buf[len - 1] == _T('\n') )
+            {
+                buf[len - 2] = _T('\n');
+                len--;
+            }
+        }
+#endif // wxUSE_RICHEDIT

 
 

-    *(WORD *)buf = (WORD)len;
-    len = (size_t)::SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
-    buf[len] = 0;
+        // remove the '\n' at the end, if any (this is how this function is
+        // supposed to work according to the docs)
+        if ( buf[len - 1] == _T('\n') )
+        {
+            len--;
+        }

 
 

-    str.UngetWriteBuf(len);
+        buf[len] = 0;
+        tmp.SetLength(len);
+    }

 
     return str;
 }
 
     return str;
 }


@@ -1236,6 +1469,27 @@ bool wxTextCtrl::CanRedo() const
     return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0;
 }
 
     return ::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0;
 }
 

+// ----------------------------------------------------------------------------
+// caret handling (Windows only)
+// ----------------------------------------------------------------------------
+
+bool wxTextCtrl::ShowNativeCaret(bool show)
+{
+    if ( show != m_isNativeCaretShown )
+    {
+        if ( !(show ? ::ShowCaret(GetHwnd()) : ::HideCaret(GetHwnd())) )
+        {
+            // not an error, may simply indicate that it's not shown/hidden
+            // yet (i.e. it had been hidden/showh 2 times before)
+            return false;
+        }
+
+        m_isNativeCaretShown = show;
+    }
+
+    return true;
+}
+

 // ----------------------------------------------------------------------------
 // implemenation details
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // implemenation details
 // ----------------------------------------------------------------------------


@@ -1631,7 +1885,7 @@ void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
     Redo();
 }
 
     Redo();
 }
 

-void wxTextCtrl::OnDelete(wxCommandEvent& event)
+void wxTextCtrl::OnDelete(wxCommandEvent& WXUNUSED(event))

 {
     long from, to;
     GetSelection(& from, & to);
 {
     long from, to;
     GetSelection(& from, & to);


@@ -1639,7 +1893,7 @@ void wxTextCtrl::OnDelete(wxCommandEvent& event)
         Remove(from, to);
 }
 
         Remove(from, to);
 }
 

-void wxTextCtrl::OnSelectAll(wxCommandEvent& event)
+void wxTextCtrl::OnSelectAll(wxCommandEvent& WXUNUSED(event))

 {
     SetSelection(-1, -1);
 }
 {
     SetSelection(-1, -1);
 }


@@ -1707,6 +1961,15 @@ void wxTextCtrl::OnRightClick(wxMouseEvent& event)
     event.Skip();
 }
 
     event.Skip();
 }
 

+void wxTextCtrl::OnSetFocus(wxFocusEvent& WXUNUSED(event))
+{
+    // be sure the caret remains invisible if the user had hidden it
+    if ( !m_isNativeCaretShown )
+    {
+        ::HideCaret(GetHwnd());
+    }
+}
+

 // the rest of the file only deals with the rich edit controls
 #if wxUSE_RICHEDIT
 
 // the rest of the file only deals with the rich edit controls
 #if wxUSE_RICHEDIT
 


@@ -1802,7 +2065,7 @@ bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
             }
             return TRUE;
     }
             }
             return TRUE;
     }

-    
+

     // not processed, leave it to the base class
     return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result);
 }
     // not processed, leave it to the base class
     return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result);
 }


@@ -2230,6 +2493,7 @@ void wxRichEditModule::OnExit()
         if ( ms_hRichEdit[i] )
         {
             ::FreeLibrary(ms_hRichEdit[i]);
         if ( ms_hRichEdit[i] )
         {
             ::FreeLibrary(ms_hRichEdit[i]);

+            ms_hRichEdit[i] = NULL;

         }
     }
 }
         }
     }
 }