make it possible to associate context help text with individual radiobox items

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

diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp
index 9edc9f41459a070d50957deb9536ab354e13e1f5..41b73b447894ab39d9ed317dbd9c2d72aa572da1 100644 (file)
--- a/src/msw/combobox.cpp
+++ b/src/msw/combobox.cpp
@@ -1,64 +1,387 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        combobox.cpp
+// Name:        src/msw/combobox.cpp

 // Purpose:     wxComboBox class
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Purpose:     wxComboBox class
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
+// Copyright:   (c) Julian Smart

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "combobox.h"
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// 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
-#endif
-
-#ifndef WX_PRECOMP
-#include "wx/setup.h"
+    #pragma hdrstop

 #endif
 
 #if wxUSE_COMBOBOX
 
 #include "wx/combobox.h"
 #endif
 
 #if wxUSE_COMBOBOX
 
 #include "wx/combobox.h"

+
+#ifndef WX_PRECOMP
+    #include "wx/settings.h"
+    #include "wx/log.h"
+    // for wxEVT_COMMAND_TEXT_ENTER
+    #include "wx/textctrl.h"
+    #include "wx/app.h"
+    #include "wx/brush.h"
+#endif
+

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

-#if !USE_SHARED_LIBRARY
+// include <commctrl.h> "properly"
+#include "wx/msw/wrapcctl.h"
+
+#if wxUSE_TOOLTIPS
+    #include "wx/tooltip.h"
+#endif // wxUSE_TOOLTIPS
+
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------
+
+#if wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxComboBoxStyle )
+
+wxBEGIN_FLAGS( wxComboBoxStyle )
+    // new style border flags, we put them first to
+    // use them for streaming out
+    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+    wxFLAGS_MEMBER(wxBORDER_RAISED)
+    wxFLAGS_MEMBER(wxBORDER_STATIC)
+    wxFLAGS_MEMBER(wxBORDER_NONE)
+
+    // old style border flags
+    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+    wxFLAGS_MEMBER(wxRAISED_BORDER)
+    wxFLAGS_MEMBER(wxSTATIC_BORDER)
+    wxFLAGS_MEMBER(wxBORDER)
+
+    // standard window styles
+    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
+    wxFLAGS_MEMBER(wxWANTS_CHARS)
+    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
+    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
+    wxFLAGS_MEMBER(wxVSCROLL)
+    wxFLAGS_MEMBER(wxHSCROLL)
+
+    wxFLAGS_MEMBER(wxCB_SIMPLE)
+    wxFLAGS_MEMBER(wxCB_SORT)
+    wxFLAGS_MEMBER(wxCB_READONLY)
+    wxFLAGS_MEMBER(wxCB_DROPDOWN)
+
+wxEND_FLAGS( wxComboBoxStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxComboBox, wxControl,"wx/combobox.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxComboBox)
+    wxEVENT_PROPERTY( Select , wxEVT_COMMAND_COMBOBOX_SELECTED , wxCommandEvent )
+    wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
+
+    // TODO DELEGATES
+    wxPROPERTY( Font , wxFont , SetFont , GetFont  , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY_COLLECTION( Choices , wxArrayString , wxString , AppendString , GetStrings , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY( Value ,wxString, SetValue, GetValue, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY( Selection ,int, SetSelection, GetSelection, EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+    wxPROPERTY_FLAGS( WindowStyle , wxComboBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxComboBox)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_5( wxComboBox , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size )
+
+#else
+

 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)

+

 #endif
 
 #endif
 

-bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
+BEGIN_EVENT_TABLE(wxComboBox, wxControl)
+    EVT_MENU(wxID_CUT, wxComboBox::OnCut)
+    EVT_MENU(wxID_COPY, wxComboBox::OnCopy)
+    EVT_MENU(wxID_PASTE, wxComboBox::OnPaste)
+    EVT_MENU(wxID_UNDO, wxComboBox::OnUndo)
+    EVT_MENU(wxID_REDO, wxComboBox::OnRedo)
+    EVT_MENU(wxID_CLEAR, wxComboBox::OnDelete)
+    EVT_MENU(wxID_SELECTALL, wxComboBox::OnSelectAll)
+
+    EVT_UPDATE_UI(wxID_CUT, wxComboBox::OnUpdateCut)
+    EVT_UPDATE_UI(wxID_COPY, wxComboBox::OnUpdateCopy)
+    EVT_UPDATE_UI(wxID_PASTE, wxComboBox::OnUpdatePaste)
+    EVT_UPDATE_UI(wxID_UNDO, wxComboBox::OnUpdateUndo)
+    EVT_UPDATE_UI(wxID_REDO, wxComboBox::OnUpdateRedo)
+    EVT_UPDATE_UI(wxID_CLEAR, wxComboBox::OnUpdateDelete)
+    EVT_UPDATE_UI(wxID_SELECTALL, wxComboBox::OnUpdateSelectAll)
+END_EVENT_TABLE()
+
+// ----------------------------------------------------------------------------
+// function prototypes
+// ----------------------------------------------------------------------------
+
+LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
+                                            UINT message,
+                                            WPARAM wParam,
+                                            LPARAM lParam);
+
+// ---------------------------------------------------------------------------
+// global vars
+// ---------------------------------------------------------------------------
+
+// the pointer to standard radio button wnd proc
+static WNDPROC gs_wndprocEdit = (WNDPROC)NULL;
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wnd proc for subclassed edit control
+// ----------------------------------------------------------------------------
+
+LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
+                                            UINT message,
+                                            WPARAM wParam,
+                                            LPARAM lParam)

 {
 {

-  if (param == CBN_SELCHANGE)
-  {
-    wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId);
-    event.SetInt(GetSelection());
-    event.SetEventObject(this);
-    event.SetString(GetStringSelection());
-    ProcessCommand(event);
+    HWND hwndCombo = ::GetParent(hWnd);
+    wxWindow *win = wxFindWinFromHandle((WXHWND)hwndCombo);
+
+    switch ( message )
+    {
+        // forward some messages to the combobox to generate the appropriate
+        // wxEvents from them
+        case WM_KEYUP:
+        case WM_KEYDOWN:
+        case WM_CHAR:
+        case WM_SYSCHAR:
+        case WM_SYSKEYDOWN:
+        case WM_SYSKEYUP:
+        case WM_SETFOCUS:
+        case WM_KILLFOCUS:
+            {
+                wxComboBox *combo = wxDynamicCast(win, wxComboBox);
+                if ( !combo )
+                {
+                    // we can get WM_KILLFOCUS while our parent is already half
+                    // destroyed and hence doesn't look like a combobx any
+                    // longer, check for it to avoid bogus assert failures
+                    if ( !win->IsBeingDeleted() )
+                    {
+                        wxFAIL_MSG( _T("should have combo as parent") );
+                    }
+                }
+                else if ( combo->MSWProcessEditMsg(message, wParam, lParam) )
+                {
+                    // handled by parent
+                    return 0;
+                }
+            }
+            break;
+
+        case WM_GETDLGCODE:
+            {
+                wxCHECK_MSG( win, 0, _T("should have a parent") );
+
+                if ( win->GetWindowStyle() & wxTE_PROCESS_ENTER )
+                {
+                    // need to return a custom dlg code or we'll never get it
+                    return DLGC_WANTMESSAGE;
+                }
+            }
+            break;
+
+        case WM_CUT:
+        case WM_COPY:
+        case WM_PASTE:
+            if( win->HandleClipboardEvent( message ) )
+                return 0;
+            break;
+    }
+
+    return ::CallWindowProc(CASTWNDPROC gs_wndprocEdit, hWnd, message, wParam, lParam);
+}

 
 

-    return TRUE;
-  }
-  else if (param == CBN_EDITCHANGE)
-  {
-    wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
-    event.SetString(GetValue());
-    event.SetEventObject(this);
-    ProcessCommand(event);
+// ----------------------------------------------------------------------------
+// wxComboBox callbacks
+// ----------------------------------------------------------------------------
+
+WXLRESULT wxComboBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+    // TODO: handle WM_CTLCOLOR messages from our EDIT control to be able to
+    //       set its colour correctly (to be the same as our own one)
+
+    switch ( nMsg )
+    {
+        case WM_SIZE:
+        // wxStaticBox can generate this message, when modifying the control's style.
+        // This causes the content of the combobox to be selected, for some reason.
+        case WM_STYLECHANGED:
+            {
+                // combobox selection sometimes spontaneously changes when its
+                // size changes, restore it to the old value if necessary
+                long fromOld, toOld;
+                GetSelection(&fromOld, &toOld);
+                WXLRESULT result = wxChoice::MSWWindowProc(nMsg, wParam, lParam);
+
+                long fromNew, toNew;
+                GetSelection(&fromNew, &toNew);
+
+                if ( fromOld != fromNew || toOld != toNew )
+                {
+                    SetSelection(fromOld, toOld);
+                }
+
+                return result;
+            }
+    }

 
 

-    return TRUE;
-  }
-  else
-      return FALSE;
+    return wxChoice::MSWWindowProc(nMsg, wParam, lParam);

 }
 
 }
 

+bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
+{
+    switch ( msg )
+    {
+        case WM_CHAR:
+            // for compatibility with wxTextCtrl, generate a special message
+            // when Enter is pressed
+            if ( wParam == VK_RETURN )
+            {
+                wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
+
+                const int sel = GetSelection();
+                event.SetInt(sel);
+                event.SetString(GetValue());
+                InitCommandEventWithItems(event, sel);
+
+                if ( ProcessCommand(event) )
+                {
+                    // don't let the event through to the native control
+                    // because it doesn't need it and may generate an annoying
+                    // beep if it gets it
+                    return true;
+                }
+            }
+            // fall through
+
+        case WM_SYSCHAR:
+            return HandleChar(wParam, lParam, true /* isASCII */);
+
+        case WM_SYSKEYDOWN:
+        case WM_KEYDOWN:
+            return HandleKeyDown(wParam, lParam);
+
+        case WM_SYSKEYUP:
+        case WM_KEYUP:
+            return HandleKeyUp(wParam, lParam);
+
+        case WM_SETFOCUS:
+            return HandleSetFocus((WXHWND)wParam);
+
+        case WM_KILLFOCUS:
+            return HandleKillFocus((WXHWND)wParam);
+    }
+
+    return false;
+}
+
+bool wxComboBox::MSWCommand(WXUINT param, WXWORD id)
+{
+    int sel = -1;
+    wxString value;
+
+    switch ( param )
+    {
+        case CBN_SELENDOK:
+#ifndef __SMARTPHONE__
+            // we need to reset this to prevent the selection from being undone
+            // by wxChoice, see wxChoice::MSWCommand() and comments there
+            m_lastAcceptedSelection = wxID_NONE;
+#endif
+
+            // set these variables so that they could be also fixed in
+            // CBN_EDITCHANGE below
+            sel = GetSelection();
+            value = GetStringSelection();
+            {
+                wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId());
+                event.SetInt(sel);
+                event.SetString(value);
+                InitCommandEventWithItems(event, sel);
+
+                ProcessCommand(event);
+            }
+
+            // fall through: for compability with wxGTK, also send the text
+            // update event when the selection changes (this also seems more
+            // logical as the text does change)
+
+        case CBN_EDITCHANGE:
+            {
+                wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
+
+                // if sel != -1, value was already initialized above
+                if ( sel == -1 )
+                {
+                    value = wxGetWindowText(GetHwnd());
+                }
+
+                event.SetString(value);
+                InitCommandEventWithItems(event, sel);
+
+                ProcessCommand(event);
+            }
+            break;
+
+        default:
+            return wxChoice::MSWCommand(param, id);
+    }
+
+    // skip wxChoice version as it would generate its own events for
+    // CBN_SELENDOK
+    return wxControl::MSWCommand(param, id);
+}
+
+WXHWND wxComboBox::GetEditHWND() const
+{
+    // this function should not be called for wxCB_READONLY controls, it is
+    // the callers responsability to check this
+    wxASSERT_MSG( !(GetWindowStyle() & wxCB_READONLY),
+                  _T("read-only combobox doesn't have any edit control") );
+
+    POINT pt;
+    pt.x = pt.y = 4;
+    HWND hwndEdit = ::ChildWindowFromPoint(GetHwnd(), pt);
+    if ( !hwndEdit || hwndEdit == GetHwnd() )
+    {
+        wxFAIL_MSG(_T("not read only combobox without edit control?"));
+    }
+
+    return (WXHWND)hwndEdit;
+}
+
+// ----------------------------------------------------------------------------
+// wxComboBox creation
+// ----------------------------------------------------------------------------
+

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


@@ -68,136 +391,205 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
                         const wxValidator& validator,
                         const wxString& name)
 {
                         const wxValidator& validator,
                         const wxString& name)
 {

-  SetName(name);
-  SetValidator(validator);
-  if (parent) parent->AddChild(this);
-  SetBackgroundColour(parent->GetBackgroundColour()) ;
-  SetForegroundColour(parent->GetForegroundColour()) ;
-
-  m_windowStyle = style;
-
-  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;
-
-  long msStyle = WS_CHILD | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
-      CBS_NOINTEGRALHEIGHT;
-
-  if (m_windowStyle & wxCB_READONLY)
-    msStyle |= CBS_DROPDOWNLIST;
-  else if (m_windowStyle & wxCB_SIMPLE)
-    msStyle |= CBS_SIMPLE; // A list (shown always) and edit control
-  else
-    msStyle |= CBS_DROPDOWN;
-
-  if (m_windowStyle & wxCB_SORT)
-    msStyle |= CBS_SORT;
-
-  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;
-
-  m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("COMBOBOX"), NULL,
-                   msStyle,
-                   0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
-                   wxGetInstance(), NULL);
-
-  wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create combobox") );
-
-/*
-#if wxUSE_CTL3D
-  if (want3D)
-  {
-    Ctl3dSubclassCtl(wx_combo);
-    m_useCtl3D = TRUE;
-  }
+    // pretend that wxComboBox is hidden while it is positioned and resized and
+    // show it only right before leaving this method because otherwise there is
+    // some noticeable flicker while the control rearranges itself
+    m_isShown = false;
+
+    if ( !CreateAndInit(parent, id, pos, size, n, choices, style,
+                        validator, name) )
+        return false;
+
+    // we shouldn't call SetValue() for an empty string because this would
+    // (correctly) result in an assert with a read only combobox and is useless
+    // for the other ones anyhow
+    if ( !value.empty() )
+        SetValue(value);
+
+    // a (not read only) combobox is, in fact, 2 controls: the combobox itself
+    // and an edit control inside it and if we want to catch events from this
+    // edit control, we must subclass it as well
+    if ( !(style & wxCB_READONLY) )
+    {
+        gs_wndprocEdit = wxSetWindowProc((HWND)GetEditHWND(),
+                                         wxComboEditWndProc);
+    }
+
+    // and finally, show the control
+    Show(true);
+
+    return true;
+}
+
+bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
+                        const wxString& value,
+                        const wxPoint& pos,
+                        const wxSize& size,
+                        const wxArrayString& choices,
+                        long style,
+                        const wxValidator& validator,
+                        const wxString& name)
+{
+    wxCArrayString chs(choices);
+    return Create(parent, id, value, pos, size, chs.GetCount(),
+                  chs.GetStrings(), style, validator, name);
+}
+
+WXDWORD wxComboBox::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+    // we never have an external border
+    WXDWORD msStyle = wxChoice::MSWGetStyle
+                      (
+                        (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
+                      );
+
+    // usually WS_TABSTOP is added by wxControl::MSWGetStyle() but as we're
+    // created hidden (see Create() above), it is not done for us but we still
+    // want to have this style
+    msStyle |= WS_TABSTOP;
+
+    // remove the style always added by wxChoice
+    msStyle &= ~CBS_DROPDOWNLIST;
+
+    if ( style & wxCB_READONLY )
+        msStyle |= CBS_DROPDOWNLIST;
+#ifndef __WXWINCE__
+    else if ( style & wxCB_SIMPLE )
+        msStyle |= CBS_SIMPLE; // A list (shown always) and edit control

 #endif
 #endif

-*/
+    else
+        msStyle |= CBS_DROPDOWN;

 
 

-  // Subclass again for purposes of dialog editing mode
-  SubclassWin(m_hWnd);
+    // there is no reason to not always use CBS_AUTOHSCROLL, so do use it
+    msStyle |= CBS_AUTOHSCROLL;

 
 

-  SetFont(parent->GetFont());
-  int i;
-  for (i = 0; i < n; i++)
-  {
-    Append(choices[i]);
-  }
+    // NB: we used to also add CBS_NOINTEGRALHEIGHT here but why?

 
 

-  SetSelection(i);
+    return msStyle;
+}

 
 

-  SetSize(x, y, width, height);
-  if ( !value.IsEmpty() )
-  {
-    SetValue(value);
-  }
+// ----------------------------------------------------------------------------
+// wxComboBox text control-like methods
+// ----------------------------------------------------------------------------

 
 

-  return TRUE;
+wxString wxComboBox::GetValue() const
+{
+    return wxGetWindowText(m_hWnd);

 }
 
 void wxComboBox::SetValue(const wxString& value)
 {
 }
 
 void wxComboBox::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)
-  {
-    wxChar *tmp = new wxChar[len + singletons + 1];
-    int j = 0;
-    for (i = 0; i < len; i ++)
-    {
-      if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
-      {
-        tmp[j] = 13;
-        j ++;
-      }
-      tmp[j] = value[i];
-      j ++;
-    }
-    tmp[j] = 0;
-    SetWindowText(GetHwnd(), tmp);
-    delete[] tmp;
-  }
-  else
-    SetWindowText(GetHwnd(), value);
+    if ( HasFlag(wxCB_READONLY) )
+        SetStringSelection(value);
+    else
+        SetWindowText(GetHwnd(), value.c_str());

 }
 
 // Clipboard operations
 void wxComboBox::Copy()
 {
 }
 
 // Clipboard operations
 void wxComboBox::Copy()
 {

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

 }
 
 void wxComboBox::Cut()
 {
 }
 
 void wxComboBox::Cut()
 {

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

 }
 
 void wxComboBox::Paste()
 {
 }
 
 void wxComboBox::Paste()
 {

-  HWND hWnd = GetHwnd();
-  SendMessage(hWnd, WM_PASTE, 0, 0L);
+    SendMessage(GetHwnd(), WM_PASTE, 0, 0L);
+}
+
+void wxComboBox::Undo()
+{
+    if (CanUndo())
+    {
+        HWND hEditWnd = (HWND) GetEditHWND();
+        if ( hEditWnd )
+            ::SendMessage(hEditWnd, EM_UNDO, 0, 0);
+    }
+}
+
+void wxComboBox::Redo()
+{
+    if (CanUndo())
+    {
+        // Same as Undo, since Undo undoes the undo, i.e. a redo.
+        HWND hEditWnd = (HWND) GetEditHWND();
+        if ( hEditWnd )
+            ::SendMessage(hEditWnd, EM_UNDO, 0, 0);
+    }
+}
+
+void wxComboBox::SelectAll()
+{
+    SetSelection(0, GetLastPosition());
+}
+
+bool wxComboBox::CanUndo() const
+{
+    if (!IsEditable())
+        return false;
+
+    HWND hEditWnd = (HWND) GetEditHWND();
+    if ( hEditWnd )
+        return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
+    else
+        return false;
+}
+
+bool wxComboBox::CanRedo() const
+{
+    if (!IsEditable())
+        return false;
+
+    HWND hEditWnd = (HWND) GetEditHWND();
+    if ( hEditWnd )
+        return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
+    else
+        return false;
+}
+
+bool wxComboBox::HasSelection() const
+{
+    long from, to;
+    GetSelection(&from, &to);
+    return from != to;
+}
+
+bool wxComboBox::CanCopy() const
+{
+    // Can copy if there's a selection
+    return HasSelection();
+}
+
+bool wxComboBox::CanCut() const
+{
+    return IsEditable() && CanCopy();
+}
+
+bool wxComboBox::CanPaste() const
+{
+    if ( !IsEditable() )
+        return false;
+
+    // Standard edit control: check for straight text on clipboard
+    if ( !::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) )
+        return false;
+
+    bool isTextAvailable = ::IsClipboardFormatAvailable(CF_TEXT) != 0;
+    ::CloseClipboard();
+
+    return isTextAvailable;

 }
 
 }
 

-void wxComboBox::SetEditable(bool editable)
+bool wxComboBox::IsEditable() const
+{
+    return !HasFlag(wxCB_READONLY);
+}
+
+void wxComboBox::SetEditable(bool WXUNUSED(editable))

 {
   // Can't implement in MSW?
 //  HWND hWnd = GetHwnd();
 {
   // Can't implement in MSW?
 //  HWND hWnd = GetHwnd();


@@ -206,124 +598,183 @@ void wxComboBox::SetEditable(bool editable)
 
 void wxComboBox::SetInsertionPoint(long pos)
 {
 
 void wxComboBox::SetInsertionPoint(long pos)
 {

-/*
-  HWND hWnd = GetHwnd();
+    if ( GetWindowStyle() & wxCB_READONLY )
+        return;
+

 #ifdef __WIN32__
 #ifdef __WIN32__

-  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);
-*/
+    HWND hWnd = GetHwnd();
+    ::SendMessage(hWnd, CB_SETEDITSEL, 0, MAKELPARAM(pos, pos));
+    HWND hEditWnd = (HWND) GetEditHWND();
+    if ( hEditWnd )
+    {
+        // Scroll insertion point into view
+        SendMessage(hEditWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
+        // Why is this necessary? (Copied from wxTextCtrl::SetInsertionPoint)
+        SendMessage(hEditWnd, EM_REPLACESEL, 0, (LPARAM) wxEmptyString);
+    }
+#endif // __WIN32__

 }
 
 void wxComboBox::SetInsertionPointEnd()
 {
 }
 
 void wxComboBox::SetInsertionPointEnd()
 {

-/*
-  long pos = GetLastPosition();
-  SetInsertionPoint(pos);
-*/
+    // setting insertion point doesn't make sense for read only comboboxes
+    if ( !(GetWindowStyle() & wxCB_READONLY) )
+    {
+        wxTextPos pos = GetLastPosition();
+        SetInsertionPoint(pos);
+    }

 }
 
 long wxComboBox::GetInsertionPoint() const
 {
 }
 
 long wxComboBox::GetInsertionPoint() const
 {

-/*
-  DWORD Pos=(DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
-  return Pos&0xFFFF;
-*/
-  return 0;
+    // CB_GETEDITSEL returns the index of the first character of the selection in
+    // its low-order word
+    DWORD pos= (DWORD)::SendMessage(GetHwnd(), CB_GETEDITSEL, 0, 0L);
+    return LOWORD(pos);

 }
 
 }
 

-long wxComboBox::GetLastPosition() const
+wxTextPos wxComboBox::GetLastPosition() const

 {
 {

-/*
-    HWND hWnd = GetHwnd();
-
-    // Will always return a number > 0 (according to docs)
-    int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
+    HWND hEditWnd = (HWND) GetEditHWND();

 
 

-    // 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
+    // Get number of characters in the last (only) line. We'll add this to the character

     // index for the last line, 1st position.
     // index for the last line, 1st position.

-    int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
+    wxTextPos lineLength = (wxTextPos)SendMessage(hEditWnd, EM_LINELENGTH, (WPARAM) 0, (LPARAM)0L);

 
 

-    return (long)(charIndex + lineLength);
-*/
-  return 0;
+    return lineLength;

 }
 
 void wxComboBox::Replace(long from, long to, const wxString& value)
 {
 #if wxUSE_CLIPBOARD
 }
 
 void wxComboBox::Replace(long from, long to, const wxString& value)
 {
 #if wxUSE_CLIPBOARD

-    HWND hWnd = GetHwnd();
-    long fromChar = from;
-    long toChar = to;
-
-    // Set selection and remove it
-#ifdef __WIN32__
-    SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
-#else
-    SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
-#endif
-    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
+    Remove(from, to);

 
     // Now replace with 'value', by pasting.
     wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
 
     // Paste into edit control
 
     // Now replace with 'value', by pasting.
     wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
 
     // Paste into edit control

-    SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
+    SendMessage(GetHwnd(), WM_PASTE, (WPARAM)0, (LPARAM)0L);
+#else
+    wxUnusedVar(from);
+    wxUnusedVar(to);
+    wxUnusedVar(value);

 #endif
 }
 
 void wxComboBox::Remove(long from, long to)
 {
 #endif
 }
 
 void wxComboBox::Remove(long from, long to)
 {

-    HWND hWnd = GetHwnd();
-    long fromChar = from;
-    long toChar = to;
-
-    // Cut all selected text
-#ifdef __WIN32__
-    SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
-#else
-    SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
-#endif
-    SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
+    // Set selection and remove it
+    SetSelection(from, to);
+    SendMessage(GetHwnd(), WM_CUT, (WPARAM)0, (LPARAM)0);

 }
 
 void wxComboBox::SetSelection(long from, long to)
 {
 }
 
 void wxComboBox::SetSelection(long from, long to)
 {

-    HWND hWnd = GetHwnd();
-    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 == -1) && (to == -1))
+    // if from and to are both -1, it means (in wxWidgets) that all text should
+    // be selected, translate this into Windows convention
+    if ( (from == -1) && (to == -1) )

     {
     {

-      fromChar = 0;
-      toChar = -1;
+        from = 0;

     }
 
     }
 

-#ifdef __WIN32__
-    SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar);
-//    SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
-#else
-    // WPARAM is 0: selection is scrolled into view
-    SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar));
-#endif
+    if ( SendMessage(GetHwnd(), CB_SETEDITSEL,
+                     0, (LPARAM)MAKELONG(from, to)) == CB_ERR )
+    {
+        wxLogDebug(_T("CB_SETEDITSEL failed"));
+    }
+}
+
+void wxComboBox::GetSelection(long* from, long* to) const
+{
+    DWORD dwStart, dwEnd;
+    if ( ::SendMessage(GetHwnd(), CB_GETEDITSEL,
+                       (WPARAM)&dwStart, (LPARAM)&dwEnd) == CB_ERR )
+    {
+        *from =
+        *to = 0;
+    }
+    else
+    {
+        *from = dwStart;
+        *to = dwEnd;
+    }
+}
+
+// ----------------------------------------------------------------------------
+// standard event handling
+// ----------------------------------------------------------------------------
+
+void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event))
+{
+    Cut();

 }
 
 }
 

-void wxComboBox::DoSetSize(int x, int y,
-                           int width, int height,
-                           int sizeFlags)
+void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event))

 {
 {

-    wxControl::DoSetSize(x, y, width, height, sizeFlags);
+    Copy();

 }
 
 }
 

-#endif
- // wxUSE_COMBOBOX
+void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event))
+{
+    Paste();
+}
+
+void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event))
+{
+    Undo();
+}
+
+void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event))
+{
+    Redo();
+}
+
+void wxComboBox::OnDelete(wxCommandEvent& WXUNUSED(event))
+{
+    long from, to;
+    GetSelection(& from, & to);
+    if (from != -1 && to != -1)
+        Remove(from, to);
+}
+
+void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event))
+{
+    SetSelection(-1, -1);
+}
+
+void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCut() );
+}
+
+void wxComboBox::OnUpdateCopy(wxUpdateUIEvent& event)
+{
+    event.Enable( CanCopy() );
+}
+
+void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event)
+{
+    event.Enable( CanPaste() );
+}
+
+void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanUndo() );
+}
+
+void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event)
+{
+    event.Enable( CanRedo() );
+}
+
+void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event)
+{
+    event.Enable(HasSelection() && IsEditable());
+}
+
+void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event)
+{
+    event.Enable(GetLastPosition() > 0);
+}

 
 

+#endif // wxUSE_COMBOBOX