VTK wrapper of vtkRenderWindow for wxPython. Tested on MSW so far.

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

diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp
index 614be2e193084f1011ac9da7c906a6fbc3ed4dd0..fc7e926e8c4bd7f6203dee2d747972302ef729ec 100644 (file)
--- a/src/msw/textctrl.cpp
+++ b/src/msw/textctrl.cpp
@@ -9,253 +9,262 @@
 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 

+// ============================================================================
+// declarations
+// ============================================================================
+

 #ifdef __GNUG__
 #ifdef __GNUG__

-#pragma implementation "textctrl.h"
+    #pragma implementation "textctrl.h"

 #endif
 
 #endif
 

+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #ifndef WX_PRECOMP
 #endif
 
 #ifndef WX_PRECOMP

-#include "wx/textctrl.h"
-#include "wx/settings.h"
-#include "wx/brush.h"
-#include "wx/utils.h"
-#include "wx/log.h"
+    #include "wx/textctrl.h"
+    #include "wx/settings.h"
+    #include "wx/brush.h"
+    #include "wx/utils.h"
+    #include "wx/log.h"

 #endif
 
 #if wxUSE_CLIPBOARD
 #endif
 
 #if wxUSE_CLIPBOARD

-#include "wx/app.h"
-#include "wx/clipbrd.h"
+    #include "wx/app.h"
+    #include "wx/clipbrd.h"

 #endif
 
 #endif
 

+#include "wx/textfile.h"
+
+#include <windowsx.h>
+

 #include "wx/msw/private.h"
 
 #include "wx/msw/private.h"
 

-#include <windows.h>
+#include <string.h>

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

+#include <sys/types.h>

 
 #if wxUSE_IOSTREAMH
 
 #if wxUSE_IOSTREAMH

-#include <fstream.h>
+#   include <fstream.h>

 #else
 #else

-#include <fstream>
-#  ifdef _MSC_VER
-      using namespace std;
-#  endif
+#   include <fstream>

 #endif
 
 #endif
 

-#include <sys/types.h>
-#ifndef __MWERKS__
-#include <sys/stat.h>
-#else
-#include <stat.h>
+#if wxUSE_RICHEDIT && (!defined(__GNUWIN32__) || defined(wxUSE_NORLANDER_HEADERS))
+    #include <richedit.h>

 #endif
 #endif

-#if defined(__BORLANDC__) && !defined(__WIN32__)
-#include <alloc.h>
-#else
-#ifndef __GNUWIN32__
-#include <malloc.h>
-#endif
-#define farmalloc malloc
-#define farfree free
-#endif
-#include <windowsx.h>

 
 

-#include <string.h>
+#if !USE_SHARED_LIBRARY

 
 

-#if defined(__WIN95__) && !defined(__GNUWIN32__)
-#include <richedit.h>
-#endif
+// ----------------------------------------------------------------------------
+// event tables and other macros
+// ----------------------------------------------------------------------------

 
 

-#if !USE_SHARED_LIBRARY

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

-  EVT_CHAR(wxTextCtrl::OnChar)
-  EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
-  EVT_ERASE_BACKGROUND(wxTextCtrl::OnEraseBackground)
+    EVT_CHAR(wxTextCtrl::OnChar)
+    EVT_DROP_FILES(wxTextCtrl::OnDropFiles)
+
+    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_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)

 END_EVENT_TABLE()
 
 END_EVENT_TABLE()
 

-#endif
+#endif // USE_SHARED_LIBRARY

 
 

-// Text item
-wxTextCtrl::wxTextCtrl(void)
-#ifndef NO_TEXT_WINDOW_STREAM
- :streambuf()
-#endif
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// creation
+// ----------------------------------------------------------------------------
+
+wxTextCtrl::wxTextCtrl()

 {
 {

-  m_fileName = "";
-  m_isRich = FALSE;
+#if wxUSE_RICHEDIT
+    m_isRich = FALSE;
+#endif

 }
 
 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
                         const wxString& value,
                         const wxPoint& pos,
 }
 
 bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id,
                         const wxString& value,
                         const wxPoint& pos,

-                        const wxSize& size, long style,
+                        const wxSize& size,
+                        long style,

                         const wxValidator& validator,
                         const wxString& name)
 {
                         const wxValidator& validator,
                         const wxString& name)
 {

-  m_fileName = "";
-  SetName(name);
-  SetValidator(validator);
-  if (parent) parent->AddChild(this);
-
-  m_windowStyle = style;
-
-  // Should this be taken from the system colours?
-//  SetBackgroundColour(wxColour(255, 255, 255));
-
-  SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
-
-  SetForegroundColour(parent->GetForegroundColour()) ;
-
-  if ( id == -1 )
-    m_windowId = (int)NewControlId();
-  else
-  m_windowId = id;
-
-  int x = pos.x;
-  int y = pos.y;
-  int width = size.x;
-  int height = size.y;
-
-#ifdef __WIN32__
-  WXHGLOBAL m_globalHandle = 0;
-#else
-  // Obscure method from the MS Developer's Network Disk for
-  // using global memory instead of the local heap, which
-  // runs out far too soon. Solves the problem with
-  // failing to appear.
-
-  // Doesn't seem to work for Win95, so removing.
-  m_globalHandle=0;
-//  if ((wxGetOsVersion() != wxWINDOWS_NT) && (wxGetOsVersion() != wxWIN95))
-//    m_globalHandle = (WXHGLOBAL) GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT,
-//                         256L);
-#endif
-
-  long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP;
-  if (m_windowStyle & wxTE_MULTILINE)
-  msStyle |= ES_MULTILINE | ES_WANTRETURN | WS_VSCROLL ; // WS_BORDER
-  else
-    msStyle |= ES_AUTOHSCROLL ;
-
-  if (m_windowStyle & wxTE_READONLY)
-    msStyle |= ES_READONLY;
-
-  if (m_windowStyle & wxHSCROLL)
-    msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL) ;
-  if (m_windowStyle & wxTE_PASSWORD) // hidden input
-    msStyle |= ES_PASSWORD;
-
-  char *windowClass = "EDIT";
-#if defined(__WIN95__)
-  if ( m_windowStyle & wxTE_MULTILINE )
-  {
-    msStyle |= ES_AUTOVSCROLL;
-    m_isRich = TRUE;
-    windowClass = "RichEdit" ;
-  }
-  else
-#endif
-    m_isRich = FALSE;
-
-  bool want3D;
-  WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
-
-  // If we're in Win95, and we want a simple 2D border,
-  // then make it an EDIT control instead.
-#if defined(__WIN95__)
-  if (m_windowStyle & wxSIMPLE_BORDER)
-  {
-    windowClass = "EDIT";
-  m_isRich = FALSE;
-  }
-#endif
-
-  // Even with extended styles, need to combine with WS_BORDER
-  // for them to look right.
-  if ( want3D || wxStyleHasBorder(m_windowStyle) )
-    msStyle |= WS_BORDER;
+    // base initialization
+    if ( !CreateBase(parent, id, pos, size, style, validator, name) )
+        return FALSE;

 
 

-  m_hWnd = (WXHWND)::CreateWindowEx(exStyle, windowClass, NULL,
-                        msStyle,
-                        0, 0, 0, 0, (HWND) ((wxWindow*)parent)->GetHWND(), (HMENU)m_windowId,
-                        m_globalHandle ? (HINSTANCE) m_globalHandle : wxGetInstance(), NULL);
+    // Validator was set in CreateBase
+    //SetValidator(validator);
+    if ( parent )
+        parent->AddChild(this);

 
 

-  wxCHECK_MSG( m_hWnd, FALSE, "Failed to create text ctrl" );
+    // set colours
+    SetupColours();

 
 

-#if CTL3D
-  if ( want3D )
-  {
-    Ctl3dSubclassCtl((HWND)m_hWnd);
-    m_useCtl3D = TRUE;
-  }
+    // translate wxWin style flags to MSW ones, checking for consistency while
+    // doing it
+    long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP;
+    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
+        msStyle |= ES_AUTOHSCROLL;
+
+    if (m_windowStyle & wxHSCROLL)
+        msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL);
+
+    if (m_windowStyle & wxTE_READONLY)
+        msStyle |= ES_READONLY;
+
+    if (m_windowStyle & wxHSCROLL)
+        msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL);
+    if (m_windowStyle & wxTE_PASSWORD) // hidden input
+        msStyle |= ES_PASSWORD;
+
+    // we always want the characters and the arrows
+    m_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 )
+        m_lDlgCode |= DLGC_WANTMESSAGE;
+    if ( m_windowStyle & wxTE_PROCESS_TAB )
+        m_lDlgCode |= DLGC_WANTTAB;
+
+    // do create the control - either an EDIT or RICHEDIT
+    const wxChar *windowClass = wxT("EDIT");
+
+#if wxUSE_RICHEDIT
+    if ( m_windowStyle & wxTE_RICH )
+    {
+        msStyle |= ES_AUTOVSCROLL;
+        m_isRich = TRUE;
+        windowClass = wxT("RICHEDIT");
+    }
+    else
+        m_isRich = FALSE;
+#endif
+
+    bool want3D;
+    WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
+
+    // Even with extended styles, need to combine with WS_BORDER for them to
+    // look right.
+    if ( want3D || wxStyleHasBorder(m_windowStyle) )
+        msStyle |= WS_BORDER;
+
+    // NB: don't use pos and size as CreateWindowEx arguments because they
+    //     might be -1 in which case we should use the default values (and
+    //     SetSize called below takes care of it)
+    m_hWnd = (WXHWND)::CreateWindowEx(exStyle,
+                                      windowClass,
+                                      NULL,
+                                      msStyle,
+                                      0, 0, 0, 0,
+                                      GetHwndOf(parent),
+                                      (HMENU)m_windowId,
+                                      wxGetInstance(),
+                                      NULL);
+
+    wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create text ctrl") );
+
+#if wxUSE_CTL3D
+    if ( want3D )
+    {
+        Ctl3dSubclassCtl(GetHwnd());
+        m_useCtl3D = TRUE;
+    }

 #endif
 
 #endif
 

-#if defined(__WIN95__)
-  if (m_isRich)
-  {
-    // Have to enable events
-    ::SendMessage((HWND)m_hWnd, EM_SETEVENTMASK, 0,
-                  ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE);
-  }
+#if wxUSE_RICHEDIT
+    if (m_isRich)
+    {
+        // Have to enable events
+        ::SendMessage(GetHwnd(), EM_SETEVENTMASK, 0,
+                      ENM_CHANGE | ENM_DROPFILES | ENM_SELCHANGE | ENM_UPDATE);
+    }

 #endif
 
 #endif
 

-  SubclassWin(GetHWND());
-
-  if ( parent->GetFont().Ok() && parent->GetFont().Ok() )
-  {
-    SetFont(parent->GetFont());
-  }
-  else
-  {
-    SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT));
-  }
+    SubclassWin(GetHWND());

 
 

-  SetSize(x, y, width, height);
+    // set font, position, size and initial value
+    wxFont& fontParent = parent->GetFont();
+    if ( fontParent.Ok() )
+    {
+        SetFont(fontParent);
+    }
+    else
+    {
+        SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT));
+    }

 
 

-  // Causes a crash for Symantec C++ and WIN32 for some reason
+    // Causes a crash for Symantec C++ and WIN32 for some reason

 #if !(defined(__SC__) && defined(__WIN32__))
 #if !(defined(__SC__) && defined(__WIN32__))

-  if ( !value.IsEmpty() )
-  {
-    SetValue(value);
-  }
+    if ( !value.IsEmpty() )
+    {
+        SetValue(value);
+    }

 #endif
 
 #endif
 

-  return TRUE;
+    SetSize(pos.x, pos.y, size.x, size.y);
+
+    return TRUE;

 }
 
 // Make sure the window style (etc.) reflects the HWND style (roughly)
 }
 
 // Make sure the window style (etc.) reflects the HWND style (roughly)

-void wxTextCtrl::AdoptAttributesFromHWND(void)
+void wxTextCtrl::AdoptAttributesFromHWND()

 {
   wxWindow::AdoptAttributesFromHWND();
 
 {
   wxWindow::AdoptAttributesFromHWND();
 

-  HWND hWnd = (HWND) GetHWND();
-  long style = GetWindowLong((HWND) hWnd, GWL_STYLE);
-
-    char buf[256];
+  HWND hWnd = GetHwnd();
+  long style = GetWindowLong(hWnd, GWL_STYLE);

 
 

-#ifndef __WIN32__
-  GetClassName((HWND) hWnd, buf, 256);
-#else
-#ifdef UNICODE
-  GetClassNameW((HWND) hWnd, buf, 256);
-#else
-  GetClassNameA((HWND) hWnd, buf, 256);
-#endif
-#endif
+  // retrieve the style to see whether this is an edit or richedit ctrl
+#if wxUSE_RICHEDIT
+  wxChar buf[256];

 
 

-  wxString str(buf);
-  str.UpperCase();
+  GetClassName(hWnd, buf, WXSIZEOF(buf));

 
 

-  if (str == "EDIT")
+  if ( wxStricmp(buf, wxT("EDIT")) == 0 )

     m_isRich = FALSE;
   else
     m_isRich = TRUE;
     m_isRich = FALSE;
   else
     m_isRich = TRUE;

+#endif // wxUSE_RICHEDIT

 
   if (style & ES_MULTILINE)
     m_windowStyle |= wxTE_MULTILINE;
 
   if (style & ES_MULTILINE)
     m_windowStyle |= wxTE_MULTILINE;


@@ -267,188 +276,194 @@ void wxTextCtrl::AdoptAttributesFromHWND(void)
     m_windowStyle |= wxTE_PROCESS_ENTER;
 }
 
     m_windowStyle |= wxTE_PROCESS_ENTER;
 }
 

-void wxTextCtrl::SetupColours(void)
+void wxTextCtrl::SetupColours()

 {
 {

-  SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
-  SetForegroundColour(GetParent()->GetForegroundColour());
+    // FIXME why is bg colour not inherited from parent?
+    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
+    SetForegroundColour(GetParent()->GetForegroundColour());

 }
 
 }
 

-wxString wxTextCtrl::GetValue(void) const
+// ----------------------------------------------------------------------------
+// set/get the controls text
+// ----------------------------------------------------------------------------
+
+wxString wxTextCtrl::GetValue() const

 {
 {

-    int length = GetWindowTextLength((HWND) GetHWND());
-    char *s = new char[length+1];
-    GetWindowText((HWND) GetHWND(), s, length+1);
-    wxString str(s);
-    delete[] s;
-  return str;
+    return wxGetWindowText(GetHWND());

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

-  // If newlines are denoted by just 10, must stick 13 in front.
-  int singletons = 0;
-  int len = value.Length();
-  int i;
-  for (i = 0; i < len; i ++)
-  {
-    if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
-      singletons ++;
-  }
-  if (singletons > 0)
-  {
-    char *tmp = new char[len + singletons + 1];
-    int j = 0;
-    for (i = 0; i < len; i ++)
+    wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);
+
+    if ( valueDos != GetValue() )

     {
     {

-      if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
-      {
-        tmp[j] = 13;
-        j ++;
-      }
-      tmp[j] = value[i];
-      j ++;
+        SetWindowText(GetHwnd(), valueDos);
+
+        AdjustSpaceLimit();

     }
     }

-    tmp[j] = 0;
-    SetWindowText((HWND) GetHWND(), tmp);
-    delete[] tmp;
-  }
-  else
-    SetWindowText((HWND) GetHWND(), (const char *)value);

 }
 
 }
 

-void wxTextCtrl::SetSize(int x, int y, int width, int height, int sizeFlags)
+void wxTextCtrl::WriteText(const wxString& value)

 {
 {

-  int currentX, currentY;
-  GetPosition(&currentX, &currentY);
-  int x1 = x;
-  int y1 = y;
-  int w1 = width;
-  int h1 = height;
-
-  if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
-    x1 = currentX;
-  if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
-    y1 = currentY;
-
-  AdjustForParentClientOrigin(x1, y1, sizeFlags);
+    wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos);

 
 

-  int cx; // button font dimensions
-  int cy;
+    SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str());

 
 

-  wxGetCharSize(GetHWND(), &cx, &cy, & GetFont());
-
-  int control_width, control_height, control_x, control_y;
+    AdjustSpaceLimit();
+}

 
 

-  // If we're prepared to use the existing size, then...
-  if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO))
-  {
-    GetSize(&w1, &h1);
-  }
+void wxTextCtrl::AppendText(const wxString& text)
+{
+    SetInsertionPointEnd();
+    WriteText(text);
+}

 
 

-  // Deal with default size (using -1 values)
-  if (w1<=0)
-    w1 = DEFAULT_ITEM_WIDTH;
+void wxTextCtrl::Clear()
+{
+    SetWindowText(GetHwnd(), wxT(""));
+}

 
 

-  control_x = x1;
-  control_y = y1;
-  control_width = w1;
-  control_height = h1;
+// ----------------------------------------------------------------------------
+// Clipboard operations
+// ----------------------------------------------------------------------------

 
 

-  // Calculations may have made text size too small
-  if (control_height <= 0)
-    control_height = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
+void wxTextCtrl::Copy()
+{
+    if (CanCopy())
+    {
+        HWND hWnd = GetHwnd();
+        SendMessage(hWnd, WM_COPY, 0, 0L);
+    }
+}

 
 

-  if (control_width <= 0)
-    control_width = DEFAULT_ITEM_WIDTH;
+void wxTextCtrl::Cut()
+{
+    if (CanCut())
+    {
+        HWND hWnd = GetHwnd();
+        SendMessage(hWnd, WM_CUT, 0, 0L);
+    }
+}

 
 

-  MoveWindow((HWND) GetHWND(), (int)control_x, (int)control_y,
-                              (int)control_width, (int)control_height, TRUE);
+void wxTextCtrl::Paste()
+{
+    if (CanPaste())
+    {
+        HWND hWnd = GetHwnd();
+        SendMessage(hWnd, WM_PASTE, 0, 0L);
+    }

 }
 
 }
 

-// Clipboard operations
-void wxTextCtrl::Copy(void)
+bool wxTextCtrl::CanCopy() const

 {
 {

-  HWND hWnd = (HWND) GetHWND();
-  SendMessage(hWnd, WM_COPY, 0, 0L);
+    // Can copy if there's a selection
+    long from, to;
+    GetSelection(& from, & to);
+    return (from != to);

 }
 
 }
 

-void wxTextCtrl::Cut(void)
+bool wxTextCtrl::CanCut() const

 {
 {

-  HWND hWnd = (HWND) GetHWND();
-  SendMessage(hWnd, WM_CUT, 0, 0L);
+    // Can cut if there's a selection
+    long from, to;
+    GetSelection(& from, & to);
+    return (from != to);

 }
 
 }
 

-void wxTextCtrl::Paste(void)
+bool wxTextCtrl::CanPaste() const

 {
 {

-  HWND hWnd = (HWND) GetHWND();
-  SendMessage(hWnd, WM_PASTE, 0, 0L);
+#if wxUSE_RICHEDIT
+    if (m_isRich)
+    {
+        int dataFormat = 0; // 0 == any format
+        return (::SendMessage( GetHwnd(), EM_CANPASTE, (WPARAM) (UINT) dataFormat, 0) != 0);
+    }
+#endif
+    if (!IsEditable())
+        return FALSE;
+
+    // Standard edit control: check for straight text on clipboard
+    bool isTextAvailable = FALSE;
+    if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
+    {
+        isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0);
+        ::CloseClipboard();
+    }
+
+    return isTextAvailable;

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// Accessors
+// ----------------------------------------------------------------------------
+

 void wxTextCtrl::SetEditable(bool editable)
 {
 void wxTextCtrl::SetEditable(bool editable)
 {

-  HWND hWnd = (HWND) GetHWND();
-  SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
+    HWND hWnd = GetHwnd();
+    SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);

 }
 
 void wxTextCtrl::SetInsertionPoint(long pos)
 {
 }
 
 void wxTextCtrl::SetInsertionPoint(long pos)
 {

-  HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();

 #ifdef __WIN32__
 #ifdef __WIN32__

-#if defined(__WIN95__)
-  if ( m_isRich)
-  {
-    CHARRANGE range;
-    range.cpMin = pos;
-    range.cpMax = pos;
-    SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range);
-    SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
-  }
-  else
-#endif
-  {
-    SendMessage(hWnd, EM_SETSEL, pos, pos);
-    SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
-  }
-#else
-  SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos));
-#endif
-  char *nothing = "";
-  SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);
+#if wxUSE_RICHEDIT
+    if ( m_isRich)
+    {
+        CHARRANGE range;
+        range.cpMin = pos;
+        range.cpMax = pos;
+        SendMessage(hWnd, EM_EXSETSEL, 0, (LPARAM) &range);
+        SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
+    }
+    else
+#endif // wxUSE_RICHEDIT
+    {
+        SendMessage(hWnd, EM_SETSEL, pos, pos);
+        SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
+    }
+#else // Win16
+    SendMessage(hWnd, EM_SETSEL, 0, MAKELPARAM(pos, pos));
+#endif // Win32/16
+
+    static const char *nothing = "";
+    SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing);

 }
 
 }
 

-void wxTextCtrl::SetInsertionPointEnd(void)
+void wxTextCtrl::SetInsertionPointEnd()

 {
 {

-  long pos = GetLastPosition();
-  SetInsertionPoint(pos);
+    long pos = GetLastPosition();
+    SetInsertionPoint(pos);

 }
 
 }
 

-long wxTextCtrl::GetInsertionPoint(void) const
+long wxTextCtrl::GetInsertionPoint() const

 {
 {

-#if defined(__WIN95__)
-  if (m_isRich)
-  {
-    CHARRANGE range;
-    range.cpMin = 0;
-    range.cpMax = 0;
-    SendMessage((HWND) GetHWND(), EM_EXGETSEL, 0, (LPARAM) &range);
-    return range.cpMin;
-  }
+#if wxUSE_RICHEDIT
+    if (m_isRich)
+    {
+        CHARRANGE range;
+        range.cpMin = 0;
+        range.cpMax = 0;
+        SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) &range);
+        return range.cpMin;
+    }

 #endif
 
 #endif
 

-  DWORD Pos=(DWORD)SendMessage((HWND) GetHWND(), EM_GETSEL, 0, 0L);
-  return Pos&0xFFFF;
+    DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
+    return Pos & 0xFFFF;

 }
 
 }
 

-long wxTextCtrl::GetLastPosition(void) const
+long wxTextCtrl::GetLastPosition() const

 {
 {

-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();

 
     // Will always return a number > 0 (according to docs)
     int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
 
     // This gets the char index for the _beginning_ of the last line
     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
 
     // Will always return a number > 0 (according to docs)
     int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
 
     // This gets the char index for the _beginning_ of the last line
     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);

-    
+

     // 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);
     // 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);


@@ -456,12 +471,50 @@ long wxTextCtrl::GetLastPosition(void) const
     return (long)(charIndex + lineLength);
 }
 
     return (long)(charIndex + lineLength);
 }
 

+// If the return values from and to are the same, there is no
+// selection.
+void wxTextCtrl::GetSelection(long* from, long* to) const
+{
+#if wxUSE_RICHEDIT
+    if (m_isRich)
+    {
+        CHARRANGE charRange;
+        ::SendMessage(GetHwnd(), EM_EXGETSEL, 0, (LPARAM) (CHARRANGE*) & charRange);
+
+        *from = charRange.cpMin;
+        *to = charRange.cpMax;
+
+        return;
+    }
+#endif
+    DWORD dwStart, dwEnd;
+    WPARAM wParam = (WPARAM) (DWORD*) & dwStart; // receives starting position
+    LPARAM lParam = (LPARAM) (DWORD*) & dwEnd;   // receives ending position
+
+    ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam);
+
+    *from = dwStart;
+    *to = dwEnd;
+}
+
+bool wxTextCtrl::IsEditable() const
+{
+    long style = ::GetWindowLong(GetHwnd(), GWL_STYLE);
+
+    return ((style & ES_READONLY) == 0);
+}
+
+// ----------------------------------------------------------------------------
+// Editing
+// ----------------------------------------------------------------------------
+

 void wxTextCtrl::Replace(long from, long to, const wxString& value)
 {
 void wxTextCtrl::Replace(long from, long to, const wxString& value)
 {

-    HWND hWnd = (HWND) GetHWND();
+#if wxUSE_CLIPBOARD
+    HWND hWnd = GetHwnd();

     long fromChar = from;
     long toChar = to;
     long fromChar = from;
     long toChar = to;

-    
+

     // Set selection and remove it
 #ifdef __WIN32__
     SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
     // Set selection and remove it
 #ifdef __WIN32__
     SendMessage(hWnd, EM_SETSEL, fromChar, toChar);


@@ -471,18 +524,21 @@ void wxTextCtrl::Replace(long from, long to, const wxString& value)
     SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 
     // Now replace with 'value', by pasting.
     SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 
     // Now replace with 'value', by pasting.

-    wxSetClipboardData(wxDF_TEXT, (wxObject *) (const char *)value, 0, 0);
+    wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0);

 
     // Paste into edit control
     SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
 
     // Paste into edit control
     SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);

+#else
+    wxFAIL_MSG("wxTextCtrl::Replace not implemented if wxUSE_CLIPBOARD is 0.");
+#endif

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

-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();

     long fromChar = from;
     long toChar = to;
     long fromChar = from;
     long toChar = to;

-    
+

     // Cut all selected text
 #ifdef __WIN32__
     SendMessage(hWnd, EM_SETSEL, fromChar, toChar);
     // Cut all selected text
 #ifdef __WIN32__
     SendMessage(hWnd, EM_SETSEL, fromChar, toChar);


@@ -494,18 +550,18 @@ void wxTextCtrl::Remove(long from, long to)
 
 void wxTextCtrl::SetSelection(long from, long to)
 {
 
 void wxTextCtrl::SetSelection(long from, long to)
 {

-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();

     long fromChar = from;
     long toChar = to;
     long fromChar = from;
     long toChar = to;

-    // if from and to are both -1, it means
-    // (in wxWindows) that all text should be selected.
-    // This translates into Windows convention
+
+    // if from and to are both -1, it means (in wxWindows) that all text should
+    // be selected. Translate into Windows convention

     if ((from == -1) && (to == -1))
     {
       fromChar = 0;
       toChar = -1;
     }
     if ((from == -1) && (to == -1))
     {
       fromChar = 0;
       toChar = -1;
     }

-    
+

 #ifdef __WIN32__
     SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar);
     SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
 #ifdef __WIN32__
     SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar);
     SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);


@@ -517,165 +573,82 @@ void wxTextCtrl::SetSelection(long from, long to)
 
 bool wxTextCtrl::LoadFile(const wxString& file)
 {
 
 bool wxTextCtrl::LoadFile(const wxString& file)
 {

-  if (!wxFileExists(WXSTRINGCAST file))
-    return FALSE;
-
-  m_fileName = file;
-
-  Clear();
-
-//  ifstream input(WXSTRINGCAST file, ios::nocreate | ios::in);
-  ifstream input(WXSTRINGCAST file, ios::in);
-
-  if (!input.bad())
-  {
-      // Previously a SETSEL/REPLACESEL call-pair were done to insert
-      // line by line into the control. Apart from being very slow this
-      // was limited to 32K of text by the external interface presenting
-      // positions as signed shorts. Now load in one chunk...
-      // Note use of 'farmalloc' as in Borland 3.1 'size_t' is 16-bits...
-
-      struct stat stat_buf;
-      if (stat(file, &stat_buf) < 0)
-        return FALSE;
-//      char *tmp_buffer = (char*)farmalloc(stat_buf.st_size+1);
-      // This may need to be a bigger buffer than the file size suggests,
-      // if it's a UNIX file. Give it an extra 1000 just in case.
-      char *tmp_buffer = (char*)farmalloc((size_t)(stat_buf.st_size+1+1000));
-      long no_lines = 0;
-      long pos = 0;
-      while (!input.eof() && input.peek() != EOF)
-      {
-        input.getline(wxBuffer, 500);
-  int len = strlen(wxBuffer);
-  wxBuffer[len] = 13;
-  wxBuffer[len+1] = 10;
-  wxBuffer[len+2] = 0;
-  strcpy(tmp_buffer+pos, wxBuffer);
-  pos += strlen(wxBuffer);
-  no_lines++;
-      }
-
-//      SendMessage((HWND) GetHWND(), WM_SETTEXT, 0, (LPARAM)tmp_buffer);
-      SetWindowText((HWND) GetHWND(), tmp_buffer);
-      SendMessage((HWND) GetHWND(), EM_SETMODIFY, FALSE, 0L);
-      farfree(tmp_buffer);
-
-      return TRUE;
-  }
-  return FALSE;
-}
-
-// If file is null, try saved file name first
-// Returns TRUE if succeeds.
-bool wxTextCtrl::SaveFile(const wxString& file)
-{
-  wxString theFile(file);
-  if (theFile == "")
-    theFile = m_fileName;
-  if (theFile == "")
-    return FALSE;
-  m_fileName = theFile;
-
-  ofstream output((char*) (const char*) theFile);
-  if (output.bad())
-  return FALSE;
-
-    // This will only save 64K max
-    unsigned long nbytes = SendMessage((HWND) GetHWND(), WM_GETTEXTLENGTH, 0, 0);
-    char *tmp_buffer = (char*)farmalloc((size_t)(nbytes+1));
-    SendMessage((HWND) GetHWND(), WM_GETTEXT, (WPARAM)(nbytes+1), (LPARAM)tmp_buffer);
-    char *pstr = tmp_buffer;
-
-  // Convert \r\n to just \n
-  while (*pstr)
-  {
-    if (*pstr != '\r')
-      output << *pstr;
-    pstr++;
-  }
-
-    farfree(tmp_buffer);
-    SendMessage((HWND) GetHWND(), EM_SETMODIFY, FALSE, 0L);
-
-    return TRUE;
-}
-
-void wxTextCtrl::WriteText(const wxString& text)
-{
-    // Covert \n to \r\n
-    int len = text.Length();
-    char *newtext = new char[(len*2)+1];
-    int i = 0;
-    int j = 0;
-    while (i < len)
+    if ( wxTextCtrlBase::LoadFile(file) )

     {
     {

-      if (text[i] == '\n')
-      {
-        newtext[j] = '\r';
-        j ++;
-      }
-      newtext[j] = text[i];
-      i ++;
-      j ++;
+        // update the size limit if needed
+        AdjustSpaceLimit();
+
+        return TRUE;

     }
     }

-    newtext[j] = 0;
-    SendMessage((HWND) GetHWND(), EM_REPLACESEL, 0, (LPARAM)newtext);
-    delete[] newtext;
-}

 
 

-void wxTextCtrl::Clear(void)
-{
-//    SendMessage((HWND) GetHWND(), WM_SETTEXT, 0, (LPARAM)"");
-    SetWindowText((HWND) GetHWND(), "");
+    return FALSE;

 }
 
 }
 

-bool wxTextCtrl::IsModified(void) const
+bool wxTextCtrl::IsModified() const

 {
 {

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

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

-void wxTextCtrl::DiscardEdits(void)
+void wxTextCtrl::DiscardEdits()

 {
 {

-  SendMessage((HWND) GetHWND(), EM_SETMODIFY, FALSE, 0L);
+    SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L);

 }
 
 }
 

-/*
- * Some of the following functions are yet to be implemented
- *
- */
- 
-int wxTextCtrl::GetNumberOfLines(void) const
+int wxTextCtrl::GetNumberOfLines() const

 {
 {

-    return (int)SendMessage((HWND) GetHWND(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0);
+    return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0);

 }
 
 long wxTextCtrl::XYToPosition(long x, long y) const
 {
 }
 
 long wxTextCtrl::XYToPosition(long x, long y) const
 {

-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();

 
     // 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);
 }
 
 
     // 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);
 }
 

-void wxTextCtrl::PositionToXY(long pos, long *x, long *y) const
+bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const

 {
 {

-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();

 
     // This gets the line number containing the character
 
     // This gets the line number containing the character

-    int lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0);
+    int lineNo;
+#if wxUSE_RICHEDIT
+    if ( m_isRich )
+    {
+        lineNo = (int)SendMessage(hWnd, EM_EXLINEFROMCHAR, 0, (LPARAM)pos);
+    }
+    else
+#endif // wxUSE_RICHEDIT
+        lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0);
+
+    if ( lineNo == -1 )
+    {
+        // no such line
+        return FALSE;
+    }
+

     // This gets the char index for the _beginning_ of this line
     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0);
     // This gets the char index for the _beginning_ of this line
     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0);

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

     // The X position must therefore be the different between pos and charIndex
     // The X position must therefore be the different between pos and charIndex

-    *x = (long)(pos - charIndex);
-    *y = (long)lineNo;
+    if ( x )
+        *x = (long)(pos - charIndex);
+    if ( y )
+        *y = (long)lineNo;
+
+    return TRUE;

 }
 
 void wxTextCtrl::ShowPosition(long pos)
 {
 }
 
 void wxTextCtrl::ShowPosition(long pos)
 {

-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();

 
     // To scroll to a position, we pass the number of lines and characters
     // to scroll *by*. This means that we need to:
 
     // To scroll to a position, we pass the number of lines and characters
     // to scroll *by*. This means that we need to:


@@ -691,429 +664,296 @@ void wxTextCtrl::ShowPosition(long pos)
     int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L);
 
     int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L);
     int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L);
 
     int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L);

-    
-    int linesToScroll = specifiedLineLineNo - currentLineLineNo;

 
 

-/*
-    wxDebugMsg("Caret line: %d; Current visible line: %d; Specified line: %d; lines to scroll: %d\n",
-      currentLineLineNo1, currentLineLineNo, specifiedLineLineNo, linesToScroll);
-*/
+    int linesToScroll = specifiedLineLineNo - currentLineLineNo;

 
     if (linesToScroll != 0)
 
     if (linesToScroll != 0)

-      (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)MAKELPARAM(linesToScroll, 0));
+      (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll);

 }
 
 int wxTextCtrl::GetLineLength(long lineNo) const
 {
     long charIndex = XYToPosition(0, lineNo);
 }
 
 int wxTextCtrl::GetLineLength(long lineNo) const
 {
     long charIndex = XYToPosition(0, lineNo);

-    HWND hWnd = (HWND) GetHWND();
-    int len = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0);
+    int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0);

     return len;
 }
 
 wxString wxTextCtrl::GetLineText(long lineNo) const
 {
     return len;
 }
 
 wxString wxTextCtrl::GetLineText(long lineNo) const
 {

-    HWND hWnd = (HWND) GetHWND();
-    *(WORD *)wxBuffer = 512;
-    int noChars = (int)SendMessage(hWnd, EM_GETLINE, (WPARAM)lineNo, (LPARAM)wxBuffer);
-    wxBuffer[noChars] = 0;
-  return wxString(wxBuffer);
+    size_t len = (size_t)GetLineLength(lineNo) + 1;
+    char *buf = (char *)malloc(len);
+    *(WORD *)buf = len;
+    int noChars = (int)SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf);
+    buf[noChars] = 0;
+
+    wxString str(buf);
+
+    free(buf);
+
+    return str;

 }
 
 }
 

-/*
- * Text item
- */
- 
-void wxTextCtrl::Command(wxCommandEvent & event)
+// ----------------------------------------------------------------------------
+// Undo/redo
+// ----------------------------------------------------------------------------
+
+void wxTextCtrl::Undo()

 {
 {

-  SetValue (event.GetString());
-  ProcessCommand (event);
+    if (CanUndo())
+    {
+        ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
+    }

 }
 
 }
 

-void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)
+void wxTextCtrl::Redo()

 {
 {

-  // By default, load the first file into the text window.
-  if (event.GetNumberOfFiles() > 0)
-  {
-    LoadFile(event.GetFiles()[0]);
-  }
+    if (CanRedo())
+    {
+        // Same as Undo, since Undo undoes the undo, i.e. a redo.
+        ::SendMessage(GetHwnd(), EM_UNDO, 0, 0);
+    }

 }
 
 }
 

-// The streambuf code was partly taken from chapter 3 by Jerry Schwarz of
-// AT&T's "C++ Lanuage System Release 3.0 Library Manual" - Stein Somers
-
-//=========================================================================
-// Called then the buffer is full (gcc 2.6.3) 
-// or when "endl" is output (Borland 4.5)
-//=========================================================================
-// Class declaration using multiple inheritance doesn't work properly for
-// Borland. See note in textctrl.h.
-#ifndef NO_TEXT_WINDOW_STREAM
-int wxTextCtrl::overflow(int c)
+bool wxTextCtrl::CanUndo() const

 {
 {

-  // Make sure there is a holding area
-  // this is not needed in <iostream> usage as it automagically allocates
-  // it, but does someone want to emulate it for safety's sake?
-#if wxUSE_IOSTREAMH
-  if ( allocate()==EOF )
-  {
-    wxLogError("Streambuf allocation failed");
-    return EOF;
-  }
-#endif
-  
-  // Verify that there are no characters in get area
-  if ( gptr() && gptr() < egptr() )
-  {
-     wxError("Who's trespassing my get area?","Internal error");
-     return EOF;
-  }
-
-  // Reset get area
-  setg(0,0,0);
-
-  // Make sure there is a put area
-  if ( ! pptr() )
-  {
-/* This doesn't seem to be fatal so comment out error message */
-//    wxError("Put area not opened","Internal error");
-
-#if wxUSE_IOSTREAMH
-         setp( base(), base() );
-#else
-         setp( pbase(), pbase() );
-#endif
-  }
-
-  // Determine how many characters have been inserted but no consumed
-  int plen = pptr() - pbase();
-
-  // Now Jerry relies on the fact that the buffer is at least 2 chars
-  // long, but the holding area "may be as small as 1" ???
-  // And we need an additional \0, so let's keep this inefficient but
-  // safe copy.
-
-  // If c!=EOF, it is a character that must also be comsumed
-  int xtra = c==EOF? 0 : 1;
-
-  // Write temporary C-string to wxTextWindow
-  {
-  char *txt = new char[plen+xtra+1];
-  memcpy(txt, pbase(), plen);
-  txt[plen] = (char)c;     // append c
-  txt[plen+xtra] = '\0';   // append '\0' or overwrite c
-    // If the put area already contained \0, output will be truncated there
-  WriteText(txt);
-    delete[] txt;
-  }
-
-  // Reset put area
-  setp(pbase(), epptr());
-
-#if defined(__WATCOMC__)
-  return __NOT_EOF;
-#elif defined(zapeof)     // HP-UX (all cfront based?)
-  return zapeof(c);
-#else
-  return c!=EOF ? c : 0;  // this should make everybody happy
-#endif
-
-/* OLD CODE
-  int len = pptr() - pbase();
-  char *txt = new char[len+1];
-  strncpy(txt, pbase(), len);
-  txt[len] = '\0';
-  (*this) << txt;
-  setp(pbase(), epptr());
-  delete[] txt;
-  return EOF;
-*/
+    return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);

 }
 
 }
 

-//=========================================================================
-// called then "endl" is output (gcc) or then explicit sync is done (Borland)
-//=========================================================================
-int wxTextCtrl::sync(void)
+bool wxTextCtrl::CanRedo() const

 {
 {

-  // Verify that there are no characters in get area
-  if ( gptr() && gptr() < egptr() )
-  {
-     wxError("Who's trespassing my get area?","Internal error");
-     return EOF;
-  }
-
-  if ( pptr() && pptr() > pbase() ) return overflow(EOF);
-
-  return 0;
-/* OLD CODE
-  int len = pptr() - pbase();
-  char *txt = new char[len+1];
-  strncpy(txt, pbase(), len);
-  txt[len] = '\0';
-  (*this) << txt;
-  setp(pbase(), epptr());
-  delete[] txt;
-  return 0;
-*/
+    return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0);

 }
 
 }
 

-//=========================================================================
-// Should not be called by a "ostream". Used by a "istream"
-//=========================================================================
-int wxTextCtrl::underflow(void)
+// ----------------------------------------------------------------------------
+// implemenation details
+// ----------------------------------------------------------------------------
+
+void wxTextCtrl::Command(wxCommandEvent & event)

 {
 {

-  return EOF;
+    SetValue(event.GetString());
+    ProcessCommand (event);

 }
 }

-#endif

 
 

-wxTextCtrl& wxTextCtrl::operator<<(const wxString& s)
+void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event)

 {
 {

-  WriteText(s);
-  return *this;
+    // By default, load the first file into the text window.
+    if (event.GetNumberOfFiles() > 0)
+    {
+        LoadFile(event.GetFiles()[0]);
+    }

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(float f)
+WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
+                                WXUINT message, WXWPARAM wParam,
+                                WXLPARAM lParam)

 {
 {

-    wxString str;
-    str.Printf("%.2f", f);
-    WriteText(str);
-    return *this;
+#if wxUSE_CTL3D
+    if ( m_useCtl3D )
+    {
+        HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
+        return (WXHBRUSH) hbrush;
+    }
+#endif
+
+    HDC hdc = (HDC)pDC;
+    SetBkMode(hdc, GetParent()->GetTransparentBackground() ? TRANSPARENT
+                                                           : OPAQUE);
+
+    ::SetBkColor(hdc, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
+    ::SetTextColor(hdc, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
+
+    wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
+
+    return (WXHBRUSH) backgroundBrush->GetResourceHandle();

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(double d)
+void wxTextCtrl::OnChar(wxKeyEvent& event)

 {
 {

-    wxString str;
-    str.Printf("%.2f", d);
-    WriteText(str);
-    return *this;
+    switch ( event.KeyCode() )
+    {
+        case WXK_RETURN:
+            if ( !(m_windowStyle & wxTE_MULTILINE) )
+            {
+                wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
+                event.SetEventObject( this );
+                if ( GetEventHandler()->ProcessEvent(event) )
+                    return;
+            }
+            //else: multiline controls need Enter for themselves
+
+            break;
+
+        case WXK_TAB:
+            // always produce navigation event - even if we process TAB
+            // ourselves the fact that we got here means that the user code
+            // decided to skip processing of this TAB - probably to let it
+            // do its default job.
+            //
+            // NB: Notice that Ctrl-Tab is handled elsewhere and Alt-Tab is
+            //     handled by Windows
+            {
+                wxNavigationKeyEvent eventNav;
+                eventNav.SetDirection(!event.ShiftDown());
+                eventNav.SetWindowChange(FALSE);
+                eventNav.SetEventObject(this);
+
+                if ( GetEventHandler()->ProcessEvent(eventNav) )
+                    return;
+            }
+            break;
+
+        default:
+            event.Skip();
+            return;
+    }
+
+    // don't just call event.Skip() because this will cause TABs and ENTERs
+    // be passed upwards and we don't always want this - instead process it
+    // right here
+
+    // FIXME
+    event.Skip();

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(int i)
+bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))

 {
 {

-    wxString str;
-    str.Printf("%d", i);
-    WriteText(str);
-    return *this;
+    switch (param)
+    {
+        case EN_SETFOCUS:
+        case EN_KILLFOCUS:
+            {
+                wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
+                        : wxEVT_SET_FOCUS,
+                        m_windowId);
+                event.SetEventObject( this );
+                GetEventHandler()->ProcessEvent(event);
+            }
+            break;
+
+        case EN_CHANGE:
+            {
+                wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
+                wxString val(GetValue());
+                if ( !val.IsNull() )
+                    event.m_commandString = WXSTRINGCAST val;
+                event.SetEventObject( this );
+                ProcessCommand(event);
+            }
+            break;
+
+        case EN_ERRSPACE:
+            // the text size limit has been hit - increase it
+            AdjustSpaceLimit();
+            break;
+
+            // the other notification messages are not processed
+        case EN_UPDATE:
+        case EN_MAXTEXT:
+        case EN_HSCROLL:
+        case EN_VSCROLL:
+        default:
+            return FALSE;
+    }
+
+    // processed
+    return TRUE;

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(long i)
+void wxTextCtrl::AdjustSpaceLimit()

 {
 {

-    wxString str;
-    str.Printf("%ld", i);
-    WriteText(str);
-    return *this;
+#ifndef __WIN16__
+    unsigned int len = ::GetWindowTextLength(GetHwnd()),
+    limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0);
+    if ( len > limit )
+    {
+        limit = len + 0x8000;    // 32Kb
+
+#if wxUSE_RICHEDIT
+        if ( m_isRich || limit > 0xffff )
+#else
+        if ( limit > 0xffff )
+#endif
+            ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit);
+        else
+            ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0);
+    }
+#endif

 }
 
 }
 

-wxTextCtrl& wxTextCtrl::operator<<(const char c)
+bool wxTextCtrl::AcceptsFocus() const

 {
 {

-    char buf[2];
-
-    buf[0] = c;
-    buf[1] = 0;
-    WriteText(buf);
-    return *this;
+    // we don't want focus if we can't be edited
+    return IsEditable() && wxControl::AcceptsFocus();

 }
 
 }
 

-WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
-      WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
+wxSize wxTextCtrl::DoGetBestSize()

 {
 {

-#if CTL3D
-  if ( m_useCtl3D )
-  {
-    HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
-    return (WXHBRUSH) hbrush;
-  }
-#endif
+    int cx, cy;
+    wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());

 
 

-  if (GetParent()->GetTransparentBackground())
-    SetBkMode((HDC) pDC, TRANSPARENT);
-  else
-    SetBkMode((HDC) pDC, OPAQUE);
+    int wText = DEFAULT_ITEM_WIDTH;
+
+    int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
+    if ( m_windowStyle & wxTE_MULTILINE )
+    {
+        hText *= wxMin(GetNumberOfLines(), 5);
+    }
+    //else: for single line control everything is ok

 
 

-  ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
-  ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
+    return wxSize(wText, hText);
+}

 
 

-  wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
+// ----------------------------------------------------------------------------
+// standard handlers for standard edit menu events
+// ----------------------------------------------------------------------------

 
 

-  // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
-  // has a zero usage count.
-  // NOT NOW - will be cleaned up at end of app.
-//  backgroundBrush->RealizeResource();
-  return (WXHBRUSH) backgroundBrush->GetResourceHandle();
+void wxTextCtrl::OnCut(wxCommandEvent& event)
+{
+    Cut();

 }
 
 }
 

-void wxTextCtrl::OnChar(wxKeyEvent& event)
+void wxTextCtrl::OnCopy(wxCommandEvent& event)

 {
 {

-    // Fix by Marcel Rasche to allow Alt-Ctrl insertion of special characters
-  switch(event.KeyCode())
-  {
-  case '{':
-  case '}':
-  case '[':
-  case ']':
-  case '|':
-  case '~':
-  case '\\':
-   {
-    char c=(char)event.KeyCode();
-    *this << c;
-   }
-   break;
-  }
-  if ( (event.KeyCode() == WXK_RETURN) && (m_windowStyle & wxPROCESS_ENTER))
-  {
-    wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
-    event.SetEventObject( this );
-    if ( GetEventHandler()->ProcessEvent(event) )
-      return;
-  }
-  else if ( event.KeyCode() == WXK_TAB ) {
-    wxNavigationKeyEvent event;
-    event.SetDirection(!(::GetKeyState(VK_SHIFT) & 0x100));
-    event.SetWindowChange(FALSE);
-    event.SetEventObject(this);
-
-    if ( GetEventHandler()->ProcessEvent(event) )
-      return;
-  }
-
-  event.Skip();
+    Copy();

 }
 
 }
 

-long wxTextCtrl::MSWGetDlgCode()
+void wxTextCtrl::OnPaste(wxCommandEvent& event)

 {
 {

-  long lRc = DLGC_WANTCHARS | DLGC_WANTARROWS;
-  if ( m_windowStyle & wxTE_PROCESS_ENTER )
-    lRc |= DLGC_WANTMESSAGE;
-  else if ( m_windowStyle & wxTE_MULTILINE )
-    lRc |= DLGC_WANTMESSAGE;
-  // ??
-  if ( m_windowStyle & wxTE_PROCESS_TAB )
-    lRc |= DLGC_WANTTAB;
-
-  return lRc;
+    Paste();

 }
 
 }
 

-void wxTextCtrl::OnEraseBackground(wxEraseEvent& event)
+void wxTextCtrl::OnUndo(wxCommandEvent& event)

 {
 {

-    if ( m_windowStyle & wxTE_MULTILINE )
-    {
-        // No flicker - only problem is we probably can't change the background
-        Default();
-/*
-        RECT rect;
-        ::GetClientRect((HWND) GetHWND(), &rect);
-
-        HBRUSH hBrush = ::CreateSolidBrush(PALETTERGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
-        int mode = ::SetMapMode((HDC) event.GetDC()->GetHDC(), MM_TEXT);
-
-        ::FillRect ((HDC) event.GetDC()->GetHDC(), &rect, hBrush);
-        ::DeleteObject(hBrush);
-        ::SetMapMode((HDC) event.GetDC()->GetHDC(), mode);
-*/
-    }
-//        wxWindow::OnEraseBackground(event);
+    Undo();

 }
 
 }
 

-bool wxTextCtrl::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
+void wxTextCtrl::OnRedo(wxCommandEvent& event)

 {
 {

-/*
-  // Debugging
-  wxDebugMsg("Edit control %d: ", (int)id);
-  switch (param)
-  {
-    case EN_SETFOCUS:
-      wxDebugMsg("EN_SETFOCUS\n");
-      break;
-    case EN_KILLFOCUS:
-      wxDebugMsg("EN_KILLFOCUS\n");
-      break;
-    case EN_CHANGE:
-      wxDebugMsg("EN_CHANGE\n");
-      break;
-    case EN_UPDATE:
-      wxDebugMsg("EN_UPDATE\n");
-      break;
-    case EN_ERRSPACE:
-      wxDebugMsg("EN_ERRSPACE\n");
-      break;
-    case EN_MAXTEXT:
-      wxDebugMsg("EN_MAXTEXT\n");
-      break;
-    case EN_HSCROLL:
-      wxDebugMsg("EN_HSCROLL\n");
-      break;
-    case EN_VSCROLL:
-      wxDebugMsg("EN_VSCROLL\n");
-      break;
-    default:
-      wxDebugMsg("Unknown EDIT notification\n");
-      break;
-  }
-*/
-  switch (param)
-  {
-    case EN_SETFOCUS:
-    case EN_KILLFOCUS:
-      {
-        wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
-                                                 : wxEVT_SET_FOCUS,
-                           m_windowId);
-        event.SetEventObject( this );
-        GetEventHandler()->ProcessEvent(event);
-      }
-      break;
-
-    case EN_CHANGE:
-      {
-        wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
-        wxString val(GetValue());
-        if ( !val.IsNull() )
-          event.m_commandString = WXSTRINGCAST val;
-        event.SetEventObject( this );
-        ProcessCommand(event);
-      }
-      break;
-
-    // the other notification messages are not processed
-    case EN_UPDATE:
-    case EN_ERRSPACE:
-    case EN_MAXTEXT:
-    case EN_HSCROLL:
-    case EN_VSCROLL:
-    default:
-      return FALSE;
-  }
-
-  // processed
-  return TRUE;
+    Redo();

 }
 
 }
 

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

 
 

-// For Rich Edit controls. Do we need it?
-#if 0
-#if defined(__WIN95__)
-bool wxTextCtrl::MSWNotify(WXWPARAM wParam, WXLPARAM lParam)
+void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)

 {
 {

-  wxCommandEvent event(0, m_windowId);
-  int eventType = 0;
-  NMHDR *hdr1 = (NMHDR *) lParam;
-  switch ( hdr1->code )
-  {
-    // Insert case code here
-    default :
-      return wxControl::MSWNotify(wParam, lParam);
-      break;
-  }
-
-  event.SetEventObject( this );
-  event.SetEventType(eventType);
-
-  if ( !GetEventHandler()->ProcessEvent(event) )
-    return FALSE;
+    event.Enable( CanCopy() );
+}

 
 

-    return TRUE;
+void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
+{
+    event.Enable( CanPaste() );
+}
+
+void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanUndo() );
+}
+
+void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanRedo() );

 }
 }

-#endif
-#endif