Some improvements to accessibility behaviour

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

diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp
index 6f16032cc9f290dfc25cf3158cc43303e411fc7d..77ad90c6d3c3f62e038c0804cee295cd03ab4dfe 100644 (file)
--- a/src/msw/textctrl.cpp
+++ b/src/msw/textctrl.cpp
@@ -38,6 +38,7 @@
     #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/log.h"
     #include "wx/app.h"

+    #include "wx/menu.h"

 #endif
 
 #include "wx/module.h"
 #endif
 
 #include "wx/module.h"


@@ -56,7 +57,11 @@
 #include <stdlib.h>
 #include <sys/types.h>
 
 #include <stdlib.h>
 #include <sys/types.h>
 

-#if wxUSE_RICHEDIT && (!defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__))
+#if wxUSE_RICHEDIT
+
+// old mingw32 has richedit stuff directly in windows.h and doesn't have
+// richedit.h at all
+#if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)

     #include <richedit.h>
 #endif
 
     #include <richedit.h>
 #endif
 


@@ -97,9 +102,11 @@
 
 // Watcom C++ doesn't define this
 #ifndef SCF_ALL
 
 // Watcom C++ doesn't define this
 #ifndef SCF_ALL

-#define SCF_ALL 0x0004
+    #define SCF_ALL 0x0004

 #endif
 
 #endif
 

+#endif // wxUSE_RICHEDIT
+

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


@@ -149,17 +156,25 @@ BEGIN_EVENT_TABLE(wxTextCtrl, wxControl)
     EVT_CHAR(wxTextCtrl::OnChar)
     EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
 
     EVT_CHAR(wxTextCtrl::OnChar)
     EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
 

+#if wxUSE_RICHEDIT
+    EVT_RIGHT_UP(wxTextCtrl::OnRightClick)
+#endif
+

     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)

+    EVT_MENU(wxID_CLEAR, wxTextCtrl::OnDelete)
+    EVT_MENU(wxID_SELECTALL, wxTextCtrl::OnSelectAll)

 
     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 
     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)

+    EVT_UPDATE_UI(wxID_CLEAR, wxTextCtrl::OnUpdateDelete)
+    EVT_UPDATE_UI(wxID_SELECTALL, wxTextCtrl::OnUpdateSelectAll)

 #ifdef __WIN16__
     EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground)
 #endif
 #ifdef __WIN16__
     EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground)
 #endif


@@ -177,7 +192,19 @@ void wxTextCtrl::Init()
 {
 #if wxUSE_RICHEDIT
     m_verRichEdit = 0;
 {
 #if wxUSE_RICHEDIT
     m_verRichEdit = 0;

-#endif
+#endif // wxUSE_RICHEDIT
+
+    m_privateContextMenu = NULL;
+    m_suppressNextUpdate = FALSE;
+}
+
+wxTextCtrl::~wxTextCtrl()
+{
+    if (m_privateContextMenu)
+    {
+        delete m_privateContextMenu;
+        m_privateContextMenu = NULL;
+    }

 }
 
 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
 }
 
 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,


@@ -195,44 +222,8 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
     if ( parent )
         parent->AddChild(this);
 
     if ( parent )
         parent->AddChild(this);
 

-    // translate wxWin style flags to MSW ones, checking for consistency while
-    // doing it
-    long msStyle = ES_LEFT | WS_TABSTOP;
-
-    if ( m_windowStyle & wxCLIP_SIBLINGS )
-        msStyle |= WS_CLIPSIBLINGS;
-
-    if ( m_windowStyle & wxTE_MULTILINE )
-    {
-        wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER),
-                      wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") );
-
-        msStyle |= ES_MULTILINE | ES_WANTRETURN;
-        if ((m_windowStyle & wxTE_NO_VSCROLL) == 0)
-            msStyle |= WS_VSCROLL;
-        m_windowStyle |= wxTE_PROCESS_ENTER;
-    }
-    else // !multiline
-    {
-        // there is really no reason to not have this style for single line
-        // text controls
-        msStyle |= ES_AUTOHSCROLL;
-    }
-
-    if ( m_windowStyle & wxHSCROLL )
-        msStyle |= WS_HSCROLL | ES_AUTOHSCROLL;
-
-    if ( m_windowStyle & wxTE_READONLY )
-        msStyle |= ES_READONLY;
-
-    if ( m_windowStyle & wxTE_PASSWORD )
-        msStyle |= ES_PASSWORD;
-
-    if ( m_windowStyle & wxTE_AUTO_SCROLL )
-        msStyle |= ES_AUTOHSCROLL;
-
-    if ( m_windowStyle & wxTE_NOHIDESEL )
-        msStyle |= ES_NOHIDESEL;
+    // translate wxWin style flags to MSW ones
+    WXDWORD msStyle = MSWGetCreateWindowFlags();

 
     // do create the control - either an EDIT or RICHEDIT
     wxString windowClass = wxT("EDIT");
 
     // do create the control - either an EDIT or RICHEDIT
     wxString windowClass = wxT("EDIT");


@@ -292,8 +283,6 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
         // have we managed to load any richedit version?
         if ( !s_errorGiven )
         {
         // have we managed to load any richedit version?
         if ( !s_errorGiven )
         {

-            msStyle |= ES_AUTOVSCROLL;
-

             m_verRichEdit = verRichEdit;
             if ( m_verRichEdit == 1 )
             {
             m_verRichEdit = verRichEdit;
             if ( m_verRichEdit == 1 )
             {


@@ -336,10 +325,17 @@ bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
 #if wxUSE_RICHEDIT
     if ( IsRich() )
     {
 #if wxUSE_RICHEDIT
     if ( IsRich() )
     {

-        // have to enable events manually
-        LPARAM mask = ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE;
+        // enable the events we're interested in: we want to get EN_CHANGE as
+        // for the normal controls
+        LPARAM mask = ENM_CHANGE;

 
 

-        if ( m_windowStyle & wxTE_AUTO_URL )
+        if ( GetRichVersion() == 1 )
+        {
+            // we also need EN_MSGFILTER for richedit 1.0 for the reasons
+            // explained in its handler
+           mask |= ENM_MOUSEEVENTS;
+        }
+        else if ( m_windowStyle & wxTE_AUTO_URL )

         {
             mask |= ENM_LINK;
 
         {
             mask |= ENM_LINK;
 


@@ -389,6 +385,99 @@ void wxTextCtrl::AdoptAttributesFromHWND()
         m_windowStyle |= wxTE_READONLY;
     if (style & ES_WANTRETURN)
         m_windowStyle |= wxTE_PROCESS_ENTER;
         m_windowStyle |= wxTE_READONLY;
     if (style & ES_WANTRETURN)
         m_windowStyle |= wxTE_PROCESS_ENTER;

+    if (style & ES_CENTER)
+        m_windowStyle |= wxTE_CENTRE;
+    if (style & ES_RIGHT)
+        m_windowStyle |= wxTE_RIGHT;
+}
+
+WXDWORD wxTextCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+    // default border for the text controls is the sunken one
+    if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
+    {
+        style |= wxBORDER_SUNKEN;
+    }
+
+    long msStyle = wxControl::MSWGetStyle(style, exstyle);
+
+    // styles which we alaways add by default
+    if ( style & wxTE_MULTILINE )
+    {
+        wxASSERT_MSG( !(style & wxTE_PROCESS_ENTER),
+                      wxT("wxTE_PROCESS_ENTER style is ignored for multiline text controls (they always process it)") );
+
+        msStyle |= ES_MULTILINE | ES_WANTRETURN;
+        if ( !(style & wxTE_NO_VSCROLL) )
+        {
+            // always adjust the vertical scrollbar automatically if we have it
+            msStyle |= WS_VSCROLL | ES_AUTOVSCROLL;
+
+            // we have to use this style for the rich edit controls because
+            // without it the vertical scrollbar never appears at all in
+            // richedit 3.0 because of our ECO_NOHIDESEL hack (search for it)
+            if ( style & wxTE_RICH2 )
+            {
+                msStyle |= ES_DISABLENOSCROLL;
+            }
+        }
+
+        style |= wxTE_PROCESS_ENTER;
+    }
+    else // !multiline
+    {
+        // there is really no reason to not have this style for single line
+        // text controls
+        msStyle |= ES_AUTOHSCROLL;
+    }
+
+    // styles which we add depending on the specified wxWindows styles
+    if ( style & wxHSCROLL )
+    {
+        // automatically scroll the control horizontally as necessary
+        msStyle |= WS_HSCROLL;// | ES_AUTOHSCROLL;
+    }
+
+    if ( style & wxTE_READONLY )
+        msStyle |= ES_READONLY;
+
+    if ( style & wxTE_PASSWORD )
+        msStyle |= ES_PASSWORD;
+
+    if ( style & wxTE_NOHIDESEL )
+        msStyle |= ES_NOHIDESEL;
+
+    // note that we can't do do "& wxTE_LEFT" as wxTE_LEFT == 0
+    if ( style & wxTE_CENTRE )
+        msStyle |= ES_CENTER;
+    else if ( style & wxTE_RIGHT )
+        msStyle |= ES_RIGHT;
+    else
+        msStyle |= ES_LEFT; // ES_LEFT if 0 as well but for consistency...
+
+    return msStyle;
+}
+
+void wxTextCtrl::SetWindowStyleFlag(long style)
+{
+    if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
+        style |= wxBORDER_SUNKEN;
+
+#if wxUSE_RICHEDIT
+    // we have to deal with some styles separately because they can't be
+    // changed by simply calling SetWindowLong(GWL_STYLE) but can be changed
+    // using richedit-specific EM_SETOPTIONS
+    if ( IsRich() &&
+            ((style & wxTE_NOHIDESEL) != (GetWindowStyle() & wxTE_NOHIDESEL)) )
+    {
+        bool set = (style & wxTE_NOHIDESEL) != 0;
+
+        ::SendMessage(GetHwnd(), EM_SETOPTIONS, set ? ECOOP_OR : ECOOP_AND,
+                      set ? ECO_NOHIDESEL : ~ECO_NOHIDESEL);
+    }
+#endif // wxUSE_RICHEDIT
+
+    wxControl::SetWindowStyleFlag(style);

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


@@ -524,7 +613,7 @@ bool wxTextCtrl::StreamIn(const wxString& value,
                           bool selectionOnly)
 {
     // we have to use EM_STREAMIN to force richedit control 2.0+ to show any
                           bool selectionOnly)
 {
     // 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
+    // text in the non default charset -- otherwise it thinks it knows better

     // than we do and always shows it in the default one
 
     // first get the Windows code page for this encoding
     // than we do and always shows it in the default one
 
     // first get the Windows code page for this encoding


@@ -560,6 +649,14 @@ bool wxTextCtrl::StreamIn(const wxString& value,
     // the cast below is needed for broken (very) old mingw32 headers
     eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn;
 
     // the cast below is needed for broken (very) old mingw32 headers
     eds.pfnCallback = (EDITSTREAMCALLBACK)wxRichEditStreamIn;
 

+    // we're going to receive 2 EN_CHANGE notifications if we got any selection
+    // (same problem as in DoWriteText())
+    if ( selectionOnly && HasSelection() )
+    {
+        // so suppress one of them
+        m_suppressNextUpdate = TRUE;
+    }
+

     if ( !::SendMessage(GetHwnd(), EM_STREAMIN,
                         SF_TEXT |
                         SF_UNICODE |
     if ( !::SendMessage(GetHwnd(), EM_STREAMIN,
                         SF_TEXT |
                         SF_UNICODE |


@@ -607,7 +704,7 @@ void wxTextCtrl::DoWriteText(const wxString& value, bool selectionOnly)
 #if wxUSE_UNICODE_MSLU
         // RichEdit doesn't have Unicode version of EM_REPLACESEL on Win9x,
         // but EM_STREAMIN works
 #if wxUSE_UNICODE_MSLU
         // RichEdit doesn't have Unicode version of EM_REPLACESEL on Win9x,
         // but EM_STREAMIN works

-        if ( wxGetOsVersion() == wxWIN95 && GetRichVersion() > 1 )
+        if ( wxUsingUnicowsDll() && GetRichVersion() > 1 )

         {
            done = StreamIn(valueDos, wxFONTENCODING_SYSTEM, selectionOnly);
         }
         {
            done = StreamIn(valueDos, wxFONTENCODING_SYSTEM, selectionOnly);
         }


@@ -637,12 +734,38 @@ void wxTextCtrl::DoWriteText(const wxString& value, bool selectionOnly)
     if ( !done )
 #endif // wxUSE_RICHEDIT
     {
     if ( !done )
 #endif // wxUSE_RICHEDIT
     {

-        if ( !selectionOnly )
+        // in some cases we get 2 EN_CHANGE notifications after the SendMessage
+        // call below which is confusing for the client code and so should be
+        // avoided
+        //
+        // these cases are: (a) plain EDIT controls if EM_REPLACESEL is used
+        // and there is a non empty selection currently and (b) rich text
+        // controls in any case
+        if (
+#if wxUSE_RICHEDIT
+            IsRich() ||
+#endif // wxUSE_RICHEDIT
+            (selectionOnly && HasSelection()) )

         {
         {

-            SetSelection(-1, -1);
+            m_suppressNextUpdate = TRUE;

         }
 
         }
 

-        ::SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str());
+        ::SendMessage(GetHwnd(), selectionOnly ? EM_REPLACESEL : WM_SETTEXT,
+                      0, (LPARAM)valueDos.c_str());
+
+        // OTOH, non rich text controls don't generate any events at all when
+        // we use WM_SETTEXT -- have to emulate them here
+        if ( !selectionOnly
+#if wxUSE_RICHEDIT
+                && !IsRich()
+#endif // wxUSE_RICHEDIT
+           )
+        {
+            // Windows already sends an update event for single-line
+            // controls.
+            if ( m_windowStyle & wxTE_MULTILINE )
+                SendUpdateEvent();
+        }

     }
 
     AdjustSpaceLimit();
     }
 
     AdjustSpaceLimit();


@@ -653,13 +776,55 @@ void wxTextCtrl::AppendText(const wxString& text)
     SetInsertionPointEnd();
 
     WriteText(text);
     SetInsertionPointEnd();
 
     WriteText(text);

+
+#if wxUSE_RICHEDIT
+    if ( IsMultiLine() && GetRichVersion() > 1 )
+    {
+        // setting the caret to the end and showing it simply doesn't work for
+        // RichEdit 2.0 -- force it to still do what we want
+        ::SendMessage(GetHwnd(), EM_LINESCROLL, 0, GetNumberOfLines());
+    }
+#endif // wxUSE_RICHEDIT

 }
 
 void wxTextCtrl::Clear()
 {
     ::SetWindowText(GetHwnd(), wxT(""));
 }
 
 void wxTextCtrl::Clear()
 {
     ::SetWindowText(GetHwnd(), wxT(""));

+
+#if wxUSE_RICHEDIT
+    if ( !IsRich() )
+#endif // wxUSE_RICHEDIT
+    {
+        // rich edit controls send EN_UPDATE from WM_SETTEXT handler themselves
+        // but the normal ones don't -- make Clear() behaviour consistent by
+        // always sending this event
+
+        // Windows already sends an update event for single-line
+        // controls.
+        if ( m_windowStyle & wxTE_MULTILINE )
+            SendUpdateEvent();
+    }
+}
+
+#ifdef __WIN32__
+
+bool wxTextCtrl::EmulateKeyPress(const wxKeyEvent& event)
+{
+    SetFocus();
+
+    size_t lenOld = GetValue().length();
+
+    wxUint32 code = event.GetRawKeyCode();
+    ::keybd_event(code, 0, 0 /* key press */, 0);
+    ::keybd_event(code, 0, KEYEVENTF_KEYUP, 0);
+
+    // assume that any alphanumeric key changes the total number of characters
+    // in the control - this should work in 99% of cases
+    return GetValue().length() != lenOld;

 }
 
 }
 

+#endif // __WIN32__
+

 // ----------------------------------------------------------------------------
 // Clipboard operations
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // Clipboard operations
 // ----------------------------------------------------------------------------


@@ -688,14 +853,19 @@ void wxTextCtrl::Paste()
     }
 }
 
     }
 }
 

-bool wxTextCtrl::CanCopy() const
+bool wxTextCtrl::HasSelection() const

 {
 {

-    // Can copy if there's a selection

     long from, to;
     GetSelection(&from, &to);
     return from != to;
 }
 
     long from, to;
     GetSelection(&from, &to);
     return from != to;
 }
 

+bool wxTextCtrl::CanCopy() const
+{
+    // Can copy if there's a selection
+    return HasSelection();
+}
+

 bool wxTextCtrl::CanCut() const
 {
     return CanCopy() && IsEditable();
 bool wxTextCtrl::CanCut() const
 {
     return CanCopy() && IsEditable();


@@ -812,6 +982,12 @@ void wxTextCtrl::GetSelection(long* from, long* to) const
 
 bool wxTextCtrl::IsEditable() const
 {
 
 bool wxTextCtrl::IsEditable() const
 {

+    // strangely enough, we may be called before the control is created: our
+    // own Create() calls MSWGetStyle() which calls AcceptsFocus() which calls
+    // us
+    if ( !m_hWnd )
+        return TRUE;
+

     long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
 
     return (style & ES_READONLY) == 0;
     long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
 
     return (style & ES_READONLY) == 0;


@@ -855,7 +1031,44 @@ void wxTextCtrl::DoSetSelection(long from, long to, bool scrollCaret)
 
     if ( scrollCaret )
     {
 
     if ( scrollCaret )
     {

+#if wxUSE_RICHEDIT
+        // richedit 3.0 (i.e. the version living in riched20.dll distributed
+        // with Windows 2000 and beyond) doesn't honour EM_SCROLLCARET when
+        // emulating richedit 2.0 unless the control has focus or ECO_NOHIDESEL
+        // option is set (but it does work ok in richedit 1.0 mode...)
+        //
+        // so to make it work we either need to give focus to it here which
+        // will probably create many problems (dummy focus events; window
+        // containing the text control being brought to foreground
+        // unexpectedly; ...) or to temporarily set ECO_NOHIDESEL which may
+        // create other problems too -- and in fact it does because if we turn
+        // on/off this style while appending the text to the control, the
+        // vertical scrollbar never appears in it even if we append tons of
+        // text and to work around this the only solution I found was to use
+        // ES_DISABLENOSCROLL
+        //
+        // this is very ugly but I don't see any other way to make this work
+        if ( GetRichVersion() > 1 )
+        {
+            if ( !HasFlag(wxTE_NOHIDESEL) )
+            {
+                ::SendMessage(GetHwnd(), EM_SETOPTIONS,
+                              ECOOP_OR, ECO_NOHIDESEL);
+            }
+            //else: everything is already ok
+        }
+#endif // wxUSE_RICHEDIT
+

         SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
         SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);

+
+#if wxUSE_RICHEDIT
+        // restore ECO_NOHIDESEL if we changed it
+        if ( GetRichVersion() > 1 && !HasFlag(wxTE_NOHIDESEL) )
+        {
+            ::SendMessage(GetHwnd(), EM_SETOPTIONS,
+                          ECOOP_AND, ~ECO_NOHIDESEL);
+        }
+#endif // wxUSE_RICHEDIT

     }
 #else // Win16
     // WPARAM is 0: selection is scrolled into view
     }
 #else // Win16
     // WPARAM is 0: selection is scrolled into view


@@ -1087,7 +1300,7 @@ bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* pMsg)
     // usual preprocessing for them
     if ( msg->message == WM_KEYDOWN )
     {
     // usual preprocessing for them
     if ( msg->message == WM_KEYDOWN )
     {

-        WORD vkey = msg->wParam;
+        WORD vkey = (WORD) msg->wParam;

         if ( (HIWORD(msg->lParam) & KF_ALTDOWN) == KF_ALTDOWN )
         {
             if ( vkey == VK_BACK )
         if ( (HIWORD(msg->lParam) & KF_ALTDOWN) == KF_ALTDOWN )
         {
             if ( vkey == VK_BACK )


@@ -1095,24 +1308,42 @@ bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* pMsg)
         }
         else // no Alt
         {
         }
         else // no Alt
         {

-            if ( wxIsCtrlDown() )
+            // we want to process some Ctrl-foo and Shift-bar but no key
+            // combinations without either Ctrl or Shift nor with both of them
+            // pressed
+            const int ctrl = wxIsCtrlDown(),
+                      shift = wxIsShiftDown();
+            switch ( ctrl + shift )

             {
             {

-                switch ( vkey )
-                {
-                    case 'C':
-                    case 'V':
-                    case 'X':
-                    case VK_INSERT:
-                    case VK_DELETE:
-                    case VK_HOME:
-                    case VK_END:
-                        return FALSE;
-                }
-            }
-            else if ( wxIsShiftDown() )
-            {
-                if ( vkey == VK_INSERT || vkey == VK_DELETE )
-                    return FALSE;
+                default:
+                    wxFAIL_MSG( _T("how many modifiers have we got?") );
+                    // fall through
+
+                case 0:
+                case 2:
+                    break;
+
+                case 1:
+                    // either Ctrl or Shift pressed
+                    if ( ctrl )
+                    {
+                        switch ( vkey )
+                        {
+                            case 'C':
+                            case 'V':
+                            case 'X':
+                            case VK_INSERT:
+                            case VK_DELETE:
+                            case VK_HOME:
+                            case VK_END:
+                                return FALSE;
+                        }
+                    }
+                    else // Shift is pressed
+                    {
+                        if ( vkey == VK_INSERT || vkey == VK_DELETE )
+                            return FALSE;
+                    }

             }
         }
     }
             }
         }
     }


@@ -1122,7 +1353,7 @@ bool wxTextCtrl::MSWShouldPreProcessMessage(WXMSG* pMsg)
 
 void wxTextCtrl::OnChar(wxKeyEvent& event)
 {
 
 void wxTextCtrl::OnChar(wxKeyEvent& event)
 {

-    switch ( event.KeyCode() )
+    switch ( event.GetKeyCode() )

     {
         case WXK_RETURN:
             if ( !(m_windowStyle & wxTE_MULTILINE) )
     {
         case WXK_RETURN:
             if ( !(m_windowStyle & wxTE_MULTILINE) )


@@ -1160,33 +1391,73 @@ void wxTextCtrl::OnChar(wxKeyEvent& event)
 
 long wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 {
 
 long wxTextCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 {

-    // we always want the characters and the arrows
+    long lRc = wxTextCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
+

     if ( nMsg == WM_GETDLGCODE )
     {
     if ( nMsg == WM_GETDLGCODE )
     {

-        // we always want the chars and the arrows
+        // we always want the chars and the arrows: the arrows for navigation
+        // and the chars because we want Ctrl-C to work even in a read only
+        // control

         long lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS;
 
         long lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS;
 

-        // we may have several different cases:
-        // 1. normal case: both TAB and ENTER are used for dialog navigation
-        // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next
-        //    control in the dialog
-        // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation
-        // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to
-        //    the next control
-        if ( m_windowStyle & wxTE_PROCESS_ENTER )
-            lDlgCode |= DLGC_WANTMESSAGE;
-        if ( m_windowStyle & wxTE_PROCESS_TAB )
-            lDlgCode |= DLGC_WANTTAB;
+        if ( IsEditable() )
+        {
+            // we may have several different cases:
+            // 1. normal case: both TAB and ENTER are used for dlg navigation
+            // 2. ctrl which wants TAB for itself: ENTER is used to pass to the
+            //    next control in the dialog
+            // 3. ctrl which wants ENTER for itself: TAB is used for dialog
+            //    navigation
+            // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to go
+            //    to the next control
+
+            // the multiline edit control should always get <Return> for itself
+            if ( HasFlag(wxTE_PROCESS_ENTER) || HasFlag(wxTE_MULTILINE) )
+                lDlgCode |= DLGC_WANTMESSAGE;
+
+            if ( HasFlag(wxTE_PROCESS_TAB) )
+                lDlgCode |= DLGC_WANTTAB;
+
+            lRc |= lDlgCode;
+        }
+        else // !editable
+        {
+            // NB: use "=", not "|=" as the base class version returns the
+            //     same flags is this state as usual (i.e. including
+            //     DLGC_WANTMESSAGE). This is strange (how does it work in the
+            //     native Win32 apps?) but for now live with it.
+            lRc = lDlgCode;
+        }
+    }
+
+    return lRc;
+}
+
+// ----------------------------------------------------------------------------
+// text control event processing
+// ----------------------------------------------------------------------------
+
+bool wxTextCtrl::SendUpdateEvent()
+{
+    // is event reporting suspended?
+    if ( m_suppressNextUpdate )
+    {
+        // do process the next one
+        m_suppressNextUpdate = FALSE;

 
 

-        return lDlgCode;
+        return FALSE;

     }
 
     }
 

-    return wxTextCtrlBase::MSWWindowProc(nMsg, wParam, lParam);
+    wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
+    InitCommandEvent(event);
+    event.SetString(GetValue());
+
+    return ProcessCommand(event);

 }
 
 bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
 {
 }
 
 bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
 {

-    switch (param)
+    switch ( param )

     {
         case EN_SETFOCUS:
         case EN_KILLFOCUS:
     {
         case EN_SETFOCUS:
         case EN_KILLFOCUS:


@@ -1194,22 +1465,17 @@ bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
                 wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
                                                          : wxEVT_SET_FOCUS,
                                    m_windowId);
                 wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
                                                          : wxEVT_SET_FOCUS,
                                    m_windowId);

-                event.SetEventObject( this );
+                event.SetEventObject(this);

                 GetEventHandler()->ProcessEvent(event);
             }
             break;
 
         case EN_CHANGE:
                 GetEventHandler()->ProcessEvent(event);
             }
             break;
 
         case EN_CHANGE:

-            {
-                wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
-                InitCommandEvent(event);
-                event.SetString(GetValue());
-                ProcessCommand(event);
-            }
+            SendUpdateEvent();

             break;
 
         case EN_MAXTEXT:
             break;
 
         case EN_MAXTEXT:

-            // the text size limit has been hit - increase it
+            // the text size limit has been hit -- try to increase it

             if ( !AdjustSpaceLimit() )
             {
                 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId);
             if ( !AdjustSpaceLimit() )
             {
                 wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, m_windowId);


@@ -1219,12 +1485,7 @@ bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
             }
             break;
 
             }
             break;
 

-            // the other notification messages are not processed
-        case EN_UPDATE:
-        case EN_ERRSPACE:
-        case EN_HSCROLL:
-        case EN_VSCROLL:
-            return FALSE;
+            // the other edit notification messages are not processed

         default:
             return FALSE;
     }
         default:
             return FALSE;
     }


@@ -1355,8 +1616,10 @@ bool wxTextCtrl::AdjustSpaceLimit()
 
 bool wxTextCtrl::AcceptsFocus() const
 {
 
 bool wxTextCtrl::AcceptsFocus() const
 {

-    // we don't want focus if we can't be edited
-    return IsEditable() && wxControl::AcceptsFocus();
+    // we don't want focus if we can't be edited unless we're a multiline
+    // control because then it might be still nice to get focus from keyboard
+    // to be able to scroll it without mouse
+    return (IsEditable() || IsMultiLine()) && wxControl::AcceptsFocus();

 }
 
 wxSize wxTextCtrl::DoGetBestSize() const
 }
 
 wxSize wxTextCtrl::DoGetBestSize() const


@@ -1405,6 +1668,19 @@ void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
     Redo();
 }
 
     Redo();
 }
 

+void wxTextCtrl::OnDelete(wxCommandEvent& event)
+{
+    long from, to;
+    GetSelection(& from, & to);
+    if (from != -1 && to != -1)
+        Remove(from, to);
+}
+
+void wxTextCtrl::OnSelectAll(wxCommandEvent& event)
+{
+    SetSelection(-1, -1);
+}
+

 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
 {
     event.Enable( CanCut() );
 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
 {
     event.Enable( CanCut() );


@@ -1430,6 +1706,44 @@ void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
     event.Enable( CanRedo() );
 }
 
     event.Enable( CanRedo() );
 }
 

+void wxTextCtrl::OnUpdateDelete(wxUpdateUIEvent& event)
+{
+    long from, to;
+    GetSelection(& from, & to);
+    event.Enable(from != -1 && to != -1 && from != to && IsEditable()) ;
+}
+
+void wxTextCtrl::OnUpdateSelectAll(wxUpdateUIEvent& event)
+{
+    event.Enable(GetLastPosition() > 0);
+}
+
+void wxTextCtrl::OnRightClick(wxMouseEvent& event)
+{
+#if wxUSE_RICHEDIT
+    if (IsRich())
+    {
+        if (!m_privateContextMenu)
+        {
+            m_privateContextMenu = new wxMenu;
+            m_privateContextMenu->Append(wxID_UNDO, _("&Undo"));
+            m_privateContextMenu->Append(wxID_REDO, _("&Redo"));
+            m_privateContextMenu->AppendSeparator();
+            m_privateContextMenu->Append(wxID_CUT, _("Cu&t"));
+            m_privateContextMenu->Append(wxID_COPY, _("&Copy"));
+            m_privateContextMenu->Append(wxID_PASTE, _("&Paste"));
+            m_privateContextMenu->Append(wxID_CLEAR, _("&Delete"));
+            m_privateContextMenu->AppendSeparator();
+            m_privateContextMenu->Append(wxID_SELECTALL, _("Select &All"));
+        }
+        PopupMenu(m_privateContextMenu, event.GetPosition());
+        return;
+    }
+    else
+#endif
+    event.Skip();
+}
+

 // 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
 


@@ -1440,63 +1754,94 @@ void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
 bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 {
     NMHDR *hdr = (NMHDR* )lParam;
 bool wxTextCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 {
     NMHDR *hdr = (NMHDR* )lParam;

-    if ( hdr->code == EN_LINK )
+    switch ( hdr->code )

     {
     {

-        ENLINK *enlink = (ENLINK *)hdr;
-
-        switch ( enlink->msg )
-        {
-            case WM_SETCURSOR:
-                // ok, so it is hardcoded - do we really nee to customize it?
-                ::SetCursor(GetHcursorOf(wxCursor(wxCURSOR_HAND)));
-                *result = TRUE;
-                break;
-
-            case WM_MOUSEMOVE:
-            case WM_LBUTTONDOWN:
-            case WM_LBUTTONUP:
-            case WM_LBUTTONDBLCLK:
-            case WM_RBUTTONDOWN:
-            case WM_RBUTTONUP:
-            case WM_RBUTTONDBLCLK:
-                // send a mouse event
+       case EN_MSGFILTER:
+            {
+                const MSGFILTER *msgf = (MSGFILTER *)lParam;
+                UINT msg = msgf->msg;
+
+                // this is a bit crazy but richedit 1.0 sends us all mouse
+                // events _except_ WM_LBUTTONUP (don't ask me why) so we have
+                // generate the wxWin events for this message manually
+                //
+                // NB: in fact, this is still not totally correct as it does
+                //     send us WM_LBUTTONUP if the selection was cleared by the
+                //     last click -- so currently we get 2 events in this case,
+                //     but as I don't see any obvious way to check for this I
+                //     leave this code in place because it's still better than
+                //     not getting left up events at all
+                if ( msg == WM_LBUTTONUP )

                 {
                 {

-                    static const wxEventType eventsMouse[] =
-                    {
-                        wxEVT_MOTION,
-                        wxEVT_LEFT_DOWN,
-                        wxEVT_LEFT_UP,
-                        wxEVT_LEFT_DCLICK,
-                        wxEVT_RIGHT_DOWN,
-                        wxEVT_RIGHT_UP,
-                        wxEVT_RIGHT_DCLICK,
-                    };
-
-                    // the event ids are consecutive
-                    wxMouseEvent
-                        evtMouse(eventsMouse[enlink->msg - WM_MOUSEMOVE]);
-
-                    InitMouseEvent(evtMouse,
-                                   GET_X_LPARAM(enlink->lParam),
-                                   GET_Y_LPARAM(enlink->lParam),
-                                   enlink->wParam);
-
-                    wxTextUrlEvent event(m_windowId, evtMouse,
-                                         enlink->chrg.cpMin,
-                                         enlink->chrg.cpMax);
-
-                    InitCommandEvent(event);
-
-                    *result = ProcessCommand(event);
+                    WXUINT flags = msgf->wParam;
+                    int x = GET_X_LPARAM(msgf->lParam),
+                        y = GET_Y_LPARAM(msgf->lParam);
+
+                    HandleMouseEvent(msg, x, y, flags);

                 }
                 }

-                break;
-        }
+            }

 
 

-        return TRUE;
-    }
+            // return TRUE to process the event (and FALSE to ignore it)
+            return TRUE;

 
 

-    // not processed
-    return FALSE;
+        case EN_LINK:
+            {
+                const ENLINK *enlink = (ENLINK *)hdr;
+
+                switch ( enlink->msg )
+                {
+                    case WM_SETCURSOR:
+                        // ok, so it is hardcoded - do we really nee to
+                        // customize it?
+                        ::SetCursor(GetHcursorOf(wxCursor(wxCURSOR_HAND)));
+                        *result = TRUE;
+                        break;
+
+                    case WM_MOUSEMOVE:
+                    case WM_LBUTTONDOWN:
+                    case WM_LBUTTONUP:
+                    case WM_LBUTTONDBLCLK:
+                    case WM_RBUTTONDOWN:
+                    case WM_RBUTTONUP:
+                    case WM_RBUTTONDBLCLK:
+                        // send a mouse event
+                        {
+                            static const wxEventType eventsMouse[] =
+                            {
+                                wxEVT_MOTION,
+                                wxEVT_LEFT_DOWN,
+                                wxEVT_LEFT_UP,
+                                wxEVT_LEFT_DCLICK,
+                                wxEVT_RIGHT_DOWN,
+                                wxEVT_RIGHT_UP,
+                                wxEVT_RIGHT_DCLICK,
+                            };
+
+                            // the event ids are consecutive
+                            wxMouseEvent
+                                evtMouse(eventsMouse[enlink->msg - WM_MOUSEMOVE]);
+
+                            InitMouseEvent(evtMouse,
+                                           GET_X_LPARAM(enlink->lParam),
+                                           GET_Y_LPARAM(enlink->lParam),
+                                           enlink->wParam);
+
+                            wxTextUrlEvent event(m_windowId, evtMouse,
+                                                 enlink->chrg.cpMin,
+                                                 enlink->chrg.cpMax);
+
+                            InitCommandEvent(event);
+
+                            *result = ProcessCommand(event);
+                        }
+                        break;
+                }
+            }
+            return TRUE;
+    }
+    
+    // not processed, leave it to the base class
+    return wxTextCtrlBase::MSWOnNotify(idCtrl, lParam, result);

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


@@ -1547,6 +1892,8 @@ bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
 // styling support for rich edit controls
 // ----------------------------------------------------------------------------
 
 // styling support for rich edit controls
 // ----------------------------------------------------------------------------
 

+#if wxUSE_RICHEDIT
+

 bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
 {
     if ( !IsRich() )
 bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
 {
     if ( !IsRich() )


@@ -1680,6 +2027,21 @@ bool wxTextCtrl::SetStyle(long start, long end, const wxTextAttr& style)
     return ok;
 }
 
     return ok;
 }
 

+bool wxTextCtrl::SetDefaultStyle(const wxTextAttr& style)
+{
+    if ( !wxTextCtrlBase::SetDefaultStyle(style) )
+        return FALSE;
+
+    // we have to do this or the style wouldn't apply for the text typed by the
+    // user
+    long posLast = GetLastPosition();
+    SetStyle(posLast, posLast, m_defaultStyle);
+
+    return TRUE;
+}
+
+#endif
+

 // ----------------------------------------------------------------------------
 // wxRichEditModule
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxRichEditModule
 // ----------------------------------------------------------------------------


@@ -1692,7 +2054,7 @@ bool wxRichEditModule::OnInit()
 
 void wxRichEditModule::OnExit()
 {
 
 void wxRichEditModule::OnExit()
 {

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

     {
         if ( ms_hRichEdit[i] )
         {
     {
         if ( ms_hRichEdit[i] )
         {