Enable variadic macros for VC9 and later.

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

diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp
index 00f1314ae2159b8222dd1771810cc908f4d1cd88..9e3f75edd7a57dc7b86d78c8e14da745f403129d 100644 (file)
--- a/src/msw/combobox.cpp
+++ b/src/msw/combobox.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

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

 // Purpose:     wxComboBox class
 // Author:      Julian Smart
 // Modified by:
 // Purpose:     wxComboBox class
 // Author:      Julian Smart
 // Modified by:


@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "combobox.h"
-#endif
-

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


@@ -30,22 +26,28 @@
 
 #if wxUSE_COMBOBOX
 
 
 #if wxUSE_COMBOBOX
 

+#include "wx/combobox.h"
+

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

+    #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"

     #include "wx/settings.h"
     #include "wx/log.h"
     // for wxEVT_COMMAND_TEXT_ENTER
     #include "wx/textctrl.h"
     #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
 
 #endif
 

-#include "wx/combobox.h"
-#include "wx/brush.h"

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

+#include "wx/dynlib.h"
+#include "wx/wupdlock.h"

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

+#if wxUSE_UXTHEME
+    #include "wx/msw/uxtheme.h"
+#endif
+

 #if wxUSE_TOOLTIPS
 #if wxUSE_TOOLTIPS

-    #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)
-        #include <commctrl.h>
-    #endif

     #include "wx/tooltip.h"
 #endif // wxUSE_TOOLTIPS
 
     #include "wx/tooltip.h"
 #endif // wxUSE_TOOLTIPS
 


@@ -53,65 +55,23 @@
 // wxWin macros
 // ----------------------------------------------------------------------------
 
 // wxWin macros
 // ----------------------------------------------------------------------------
 

-#if wxUSE_EXTENDED_RTTI
-WX_DEFINE_FLAGS( wxComboBoxStyle )
-
-WX_BEGIN_FLAGS( wxComboBoxStyle )
-    // new style border flags, we put them first to
-    // use them for streaming out
-    WX_FLAGS_MEMBER(wxBORDER_SIMPLE)
-    WX_FLAGS_MEMBER(wxBORDER_SUNKEN)
-    WX_FLAGS_MEMBER(wxBORDER_DOUBLE)
-    WX_FLAGS_MEMBER(wxBORDER_RAISED)
-    WX_FLAGS_MEMBER(wxBORDER_STATIC)
-    WX_FLAGS_MEMBER(wxBORDER_NONE)
-    
-    // old style border flags
-    WX_FLAGS_MEMBER(wxSIMPLE_BORDER)
-    WX_FLAGS_MEMBER(wxSUNKEN_BORDER)
-    WX_FLAGS_MEMBER(wxDOUBLE_BORDER)
-    WX_FLAGS_MEMBER(wxRAISED_BORDER)
-    WX_FLAGS_MEMBER(wxSTATIC_BORDER)
-    WX_FLAGS_MEMBER(wxNO_BORDER)
-
-    // standard window styles
-    WX_FLAGS_MEMBER(wxTAB_TRAVERSAL)
-    WX_FLAGS_MEMBER(wxCLIP_CHILDREN)
-    WX_FLAGS_MEMBER(wxTRANSPARENT_WINDOW)
-    WX_FLAGS_MEMBER(wxWANTS_CHARS)
-    WX_FLAGS_MEMBER(wxNO_FULL_REPAINT_ON_RESIZE)
-    WX_FLAGS_MEMBER(wxALWAYS_SHOW_SB )
-    WX_FLAGS_MEMBER(wxVSCROLL)
-    WX_FLAGS_MEMBER(wxHSCROLL)
-
-    WX_FLAGS_MEMBER(wxCB_SIMPLE)
-    WX_FLAGS_MEMBER(wxCB_SORT)
-    WX_FLAGS_MEMBER(wxCB_READONLY)
-    WX_FLAGS_MEMBER(wxCB_DROPDOWN)
-
-WX_END_FLAGS( wxComboBoxStyle )
-
-IMPLEMENT_DYNAMIC_CLASS_XTI(wxComboBox, wxControl,"wx/combobox.h")
-
-WX_BEGIN_PROPERTIES_TABLE(wxComboBox)
-       WX_DELEGATE( OnSelect , wxEVT_COMMAND_COMBOBOX_SELECTED , wxCommandEvent )
-    WX_DELEGATE( OnTextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
-
-    // TODO DELEGATES
-       WX_PROPERTY( Font , wxFont , SetFont , GetFont  , , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
-    WX_PROPERTY_COLLECTION( Choices , wxArrayString , wxString , AppendString , GetStrings , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
-       WX_PROPERTY( Value ,wxString, SetValue, GetValue, , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
-       WX_PROPERTY( Selection ,int, SetSelection, GetSelection, , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
-    WX_PROPERTY_FLAGS( WindowStyle , wxComboBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
-WX_END_PROPERTIES_TABLE()
-
-WX_BEGIN_HANDLERS_TABLE(wxComboBox)
-WX_END_HANDLERS_TABLE()
-
-WX_CONSTRUCTOR_5( wxComboBox , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size )
-#else
-IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
-#endif
+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
 
 // ----------------------------------------------------------------------------
 // function prototypes


@@ -127,7 +87,7 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
 // ---------------------------------------------------------------------------
 
 // the pointer to standard radio button wnd proc
 // ---------------------------------------------------------------------------
 
 // the pointer to standard radio button wnd proc

-static WXFARPROC gs_wndprocEdit = (WXFARPROC)NULL;
+static WNDPROC gs_wndprocEdit = (WNDPROC)NULL;

 
 // ============================================================================
 // implementation
 
 // ============================================================================
 // implementation


@@ -152,6 +112,9 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
         case WM_KEYUP:
         case WM_KEYDOWN:
         case WM_CHAR:
         case WM_KEYUP:
         case WM_KEYDOWN:
         case WM_CHAR:

+        case WM_SYSCHAR:
+        case WM_SYSKEYDOWN:
+        case WM_SYSKEYUP:

         case WM_SETFOCUS:
         case WM_KILLFOCUS:
             {
         case WM_SETFOCUS:
         case WM_KILLFOCUS:
             {


@@ -163,7 +126,7 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
                     // longer, check for it to avoid bogus assert failures
                     if ( !win->IsBeingDeleted() )
                     {
                     // longer, check for it to avoid bogus assert failures
                     if ( !win->IsBeingDeleted() )
                     {

-                        wxFAIL_MSG( _T("should have combo as parent") );
+                        wxFAIL_MSG( wxT("should have combo as parent") );

                     }
                 }
                 else if ( combo->MSWProcessEditMsg(message, wParam, lParam) )
                     }
                 }
                 else if ( combo->MSWProcessEditMsg(message, wParam, lParam) )


@@ -176,66 +139,74 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
 
         case WM_GETDLGCODE:
             {
 
         case WM_GETDLGCODE:
             {

-                wxCHECK_MSG( win, 0, _T("should have a parent") );
+                wxCHECK_MSG( win, 0, wxT("should have a parent") );

 
 

-                if ( win->GetWindowStyle() & wxPROCESS_ENTER )
+                if ( win->GetWindowStyle() & wxTE_PROCESS_ENTER )

                 {
                     // need to return a custom dlg code or we'll never get it
                     return DLGC_WANTMESSAGE;
                 }
             }
             break;
                 {
                     // need to return a custom dlg code or we'll never get it
                     return DLGC_WANTMESSAGE;
                 }
             }
             break;

-
-        // deal with tooltips here
-#if wxUSE_TOOLTIPS && defined(TTN_NEEDTEXT)
-        case WM_NOTIFY:
-            {
-                wxCHECK_MSG( win, 0, _T("should have a parent") );
-
-                NMHDR* hdr = (NMHDR *)lParam;
-                if ( hdr->code == TTN_NEEDTEXT )
-                {
-                    wxToolTip *tooltip = win->GetToolTip();
-                    if ( tooltip )
-                    {
-                        TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
-                        ttt->lpszText = (wxChar *)tooltip->GetTip().c_str();
-                    }
-
-                    // processed
-                    return 0;
-                }
-            }
-            break;
-#endif // wxUSE_TOOLTIPS

     }
 
     return ::CallWindowProc(CASTWNDPROC gs_wndprocEdit, hWnd, message, wParam, lParam);
 }
 
     }
 
     return ::CallWindowProc(CASTWNDPROC gs_wndprocEdit, hWnd, message, wParam, lParam);
 }
 

-WXHBRUSH wxComboBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
-                               WXUINT WXUNUSED(message),
-                               WXWPARAM WXUNUSED(wParam),
-                               WXLPARAM WXUNUSED(lParam)
-    )
+// ----------------------------------------------------------------------------
+// wxComboBox callbacks
+// ----------------------------------------------------------------------------
+
+WXLRESULT wxComboBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)

 {
 {

-    HDC hdc = (HDC)pDC;
-    wxColour colBack = GetBackgroundColour();
+    // 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
+                if ( !GetEditHWNDIfAvailable() )
+                    break;

 
 

-    if (!IsEnabled())
-        colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
+                long fromOld, toOld;
+                GetSelection(&fromOld, &toOld);

 
 

-    ::SetBkColor(hdc, wxColourToRGB(colBack));
-    ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
+                // if an editable combobox has a not empty text not from the
+                // list, it tries to autocomplete it from the list when it is
+                // resized, but we don't want this to happen as it doesn't seem
+                // to make any sense, so we forcefully restore the old text
+                wxString textOld;
+                if ( !HasFlag(wxCB_READONLY) && GetCurrentSelection() == -1 )
+                    textOld = GetValue();

 
 

-    wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
+                // eliminate flickering during following hacks
+                wxWindowUpdateLocker lock(this);

 
 

-    return (WXHBRUSH)brush->GetResourceHandle();
-}
+                WXLRESULT result = wxChoice::MSWWindowProc(nMsg, wParam, lParam);

 
 

-// ----------------------------------------------------------------------------
-// wxComboBox
-// ----------------------------------------------------------------------------
+                if ( !textOld.empty() && GetValue() != textOld )
+                    SetLabel(textOld);
+
+                long fromNew, toNew;
+                GetSelection(&fromNew, &toNew);
+
+                if ( fromOld != fromNew || toOld != toNew )
+                {
+                    SetSelection(fromOld, toOld);
+                }
+
+                return result;
+            }
+    }
+
+    return wxChoice::MSWWindowProc(nMsg, wParam, lParam);
+}

 
 bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
 {
 
 bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
 {


@@ -246,18 +217,34 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
             // when Enter is pressed
             if ( wParam == VK_RETURN )
             {
             // when Enter is pressed
             if ( wParam == VK_RETURN )
             {

+                if (SendMessage(GetHwnd(), CB_GETDROPPEDSTATE, 0, 0))
+                    return false;
+

                 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
                 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);

-                InitCommandEvent(event);
+
+                const int sel = GetSelection();
+                event.SetInt(sel);

                 event.SetString(GetValue());
                 event.SetString(GetValue());

-                event.SetInt(GetSelection());
-                ProcessCommand(event);
+                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

 
 

-            return HandleChar(wParam, lParam, TRUE /* isASCII */);
+        case WM_SYSCHAR:
+            return HandleChar(wParam, lParam);

 
 

+        case WM_SYSKEYDOWN:

         case WM_KEYDOWN:
             return HandleKeyDown(wParam, lParam);
 
         case WM_KEYDOWN:
             return HandleKeyDown(wParam, lParam);
 

+        case WM_SYSKEYUP:

         case WM_KEYUP:
             return HandleKeyUp(wParam, lParam);
 
         case WM_KEYUP:
             return HandleKeyUp(wParam, lParam);
 


@@ -266,87 +253,191 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
 
         case WM_KILLFOCUS:
             return HandleKillFocus((WXHWND)wParam);
 
         case WM_KILLFOCUS:
             return HandleKillFocus((WXHWND)wParam);

+
+        case WM_CUT:
+        case WM_COPY:
+        case WM_PASTE:
+            return HandleClipboardEvent(msg);

     }
 
     }
 

-    return FALSE;
+    return false;

 }
 
 }
 

-bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
+bool wxComboBox::MSWCommand(WXUINT param, WXWORD id)

 {
 {

-    wxString value;

     int sel = -1;
     int sel = -1;

+    wxString value;
+

     switch ( param )
     {
     switch ( param )
     {

-        case CBN_SELCHANGE:
-            sel = GetSelection();
-            if ( sel > -1 )
+        case CBN_DROPDOWN:
+            // remember the last selection, just as wxChoice does
+            m_lastAcceptedSelection = GetCurrentSelection();
+            if ( m_lastAcceptedSelection == -1 )
+            {
+                // but unlike with wxChoice we may have no selection but still
+                // have some text and we should avoid erasing it if the drop
+                // down is cancelled (see #8474)
+                m_lastAcceptedSelection = wxID_NONE;
+            }
+            {
+                wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_DROPDOWN, GetId());
+                event.SetEventObject(this);
+                ProcessCommand(event);
+            }
+            break;
+        case CBN_CLOSEUP:

             {
             {

-                value = GetString(sel);
+                wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_CLOSEUP, GetId());
+                event.SetEventObject(this);
+                ProcessCommand(event);
+            }
+            break;
+        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();
+
+            // this string is going to become the new combobox value soon but
+            // we need it to be done right now, otherwise the event handler
+            // could get a wrong value when it calls our GetValue()
+            ::SetWindowText(GetHwnd(), value.wx_str());

 
 

+            {

                 wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId());
                 event.SetInt(sel);
                 wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId());
                 event.SetInt(sel);

-                event.SetEventObject(this);

                 event.SetString(value);
                 event.SetString(value);

+                InitCommandEventWithItems(event, sel);
+

                 ProcessCommand(event);
             }
                 ProcessCommand(event);
             }

-            else
-            {
-                break;
-            }

 
             // 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:
 
             // 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:

+            if ( m_allowTextEvents )

             {
                 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
 
             {
                 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
 

-                // if sel != -1, value was initialized above (and we can't use
-                // GetValue() here as it would return the old selection and we
-                // want the new one)
+                // if sel != -1, value was already initialized above

                 if ( sel == -1 )
                 {
                 if ( sel == -1 )
                 {

-                    value = GetValue();
-                }
-                else // we're synthesizing text updated event from sel change
-                {
-                    // we need to do this because the user code expects
-                    // wxComboBox::GetValue() to return the new value from
-                    // "text updated" handler but it hadn't been updated yet
-                    SetValue(value);
+                    value = wxGetWindowText(GetHwnd());

                 }
 
                 event.SetString(value);
                 }
 
                 event.SetString(value);

-                event.SetEventObject(this);
+                InitCommandEventWithItems(event, sel);
+

                 ProcessCommand(event);
             }
             break;
                 ProcessCommand(event);
             }
             break;

+
+        default:
+            return wxChoice::MSWCommand(param, id);

     }
 
     }
 

-    // there is no return value for the CBN_ notifications, so always return
-    // FALSE from here to pass the message to DefWindowProc()
-    return FALSE;
+    // skip wxChoice version as it would generate its own events for
+    // CBN_SELENDOK and also interfere with our handling of CBN_DROPDOWN
+    return true;

 }
 
 }
 

-WXHWND wxComboBox::GetEditHWND() const
+bool wxComboBox::MSWShouldPreProcessMessage(WXMSG *pMsg)

 {
 {

-    // 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() )
+    // prevent command accelerators from stealing editing
+    // hotkeys when we have the focus
+    if (wxIsCtrlDown())
+    {
+        WPARAM vkey = pMsg->wParam;
+
+        switch (vkey)
+        {
+            case 'C':
+            case 'V':
+            case 'X':
+            case VK_INSERT:
+            case VK_DELETE:
+            case VK_HOME:
+            case VK_END:
+                return false;
+        }
+    }
+
+    return wxChoice::MSWShouldPreProcessMessage(pMsg);
+}
+
+WXHWND wxComboBox::GetEditHWNDIfAvailable() const
+{
+#if wxUSE_DYNLIB_CLASS
+#if defined(WINVER) && WINVER >= 0x0500
+    typedef BOOL (WINAPI *GetComboBoxInfo_t)(HWND, COMBOBOXINFO*);
+    static GetComboBoxInfo_t s_pfnGetComboBoxInfo = NULL;
+    static bool s_triedToLoad = false;
+    if ( !s_triedToLoad )
+    {
+        s_triedToLoad = true;
+        wxLoadedDLL dllUser32("user32.dll");
+        wxDL_INIT_FUNC(s_pfn, GetComboBoxInfo, dllUser32);
+    }
+
+    if ( s_pfnGetComboBoxInfo )
+    {
+        WinStruct<COMBOBOXINFO> info;
+        (*s_pfnGetComboBoxInfo)(GetHwnd(), &info);
+        return info.hwndItem;
+    }
+#endif // WINVER >= 0x0500
+#endif // wxUSE_DYNLIB_CLASS
+
+    if (HasFlag(wxCB_SIMPLE))

     {
     {

-        wxFAIL_MSG(_T("not read only combobox without edit control?"));
+        POINT pt;
+        pt.x = pt.y = 4;
+        return (WXHWND) ::ChildWindowFromPoint(GetHwnd(), pt);

     }
 
     }
 

-    return (WXHWND)hwndEdit;
+    // notice that a slightly safer alternative could be to use FindWindowEx()
+    // but it's not available under WinCE so just take the first child for now
+    // to keep one version of the code for all platforms and fix it later if
+    // problems are discovered
+
+    // we assume that the only child of the combobox is the edit window
+    return (WXHWND)::GetWindow(GetHwnd(), GW_CHILD);

 }
 
 }
 

+WXHWND wxComboBox::GetEditHWND() const
+{
+    // this function should not be called for wxCB_READONLY controls, it is
+    // the callers responsibility to check this
+    wxASSERT_MSG( !HasFlag(wxCB_READONLY),
+                  wxT("read-only combobox doesn't have any edit control") );
+
+    WXHWND hWndEdit = GetEditHWNDIfAvailable();
+    wxASSERT_MSG( hWndEdit, wxT("combobox without edit control?") );
+
+    return hWndEdit;
+}
+
+wxWindow *wxComboBox::GetEditableWindow()
+{
+    wxASSERT_MSG( !HasFlag(wxCB_READONLY),
+                  wxT("read-only combobox doesn't have any edit control") );
+
+    return this;
+}
+
+// ----------------------------------------------------------------------------
+// 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,


@@ -359,15 +450,62 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
     // 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
     // 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;
+    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;

 
 

-    // first create wxWin object
-    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
-        return FALSE;
+    // remove the style always added by wxChoice
+    msStyle &= ~CBS_DROPDOWNLIST;

 
 

-    // get the right style
-    long msStyle = WS_TABSTOP | WS_VSCROLL | WS_HSCROLL |
-                   CBS_AUTOHSCROLL | CBS_NOINTEGRALHEIGHT /* | WS_CLIPSIBLINGS */;

     if ( style & wxCB_READONLY )
         msStyle |= CBS_DROPDOWNLIST;
 #ifndef __WXWINCE__
     if ( style & wxCB_READONLY )
         msStyle |= CBS_DROPDOWNLIST;
 #ifndef __WXWINCE__


@@ -377,181 +515,161 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
     else
         msStyle |= CBS_DROPDOWN;
 
     else
         msStyle |= CBS_DROPDOWN;
 

-    if ( style & wxCB_SORT )
-        msStyle |= CBS_SORT;
+    // there is no reason to not always use CBS_AUTOHSCROLL, so do use it
+    msStyle |= CBS_AUTOHSCROLL;

 
 

-    if ( style & wxCLIP_SIBLINGS )
-        msStyle |= WS_CLIPSIBLINGS;
+    // NB: we used to also add CBS_NOINTEGRALHEIGHT here but why?

 
 

+    return msStyle;
+}

 
 

-    // and now create the MSW control
-    if ( !MSWCreateControl(_T("COMBOBOX"), msStyle) )
-        return FALSE;
+// ----------------------------------------------------------------------------
+// wxComboBox text control-like methods
+// ----------------------------------------------------------------------------

 
 

-    // A choice/combobox normally has a white background (or other, depending
-    // on global settings) rather than inheriting the parent's background colour.
-    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
+wxString wxComboBox::GetValue() const
+{
+    return HasFlag(wxCB_READONLY) ? GetStringSelection()
+                                  : wxTextEntry::GetValue();
+}

 
 

-    for ( int i = 0; i < n; i++ )
-    {
-        Append(choices[i]);
-    }
+void wxComboBox::SetValue(const wxString& value)
+{
+    if ( HasFlag(wxCB_READONLY) )
+        SetStringSelection(value);
+    else
+        wxTextEntry::SetValue(value);
+}

 
 

-    if ( !value.IsEmpty() )
+void wxComboBox::Clear()
+{
+    wxChoice::Clear();
+    if ( !HasFlag(wxCB_READONLY) )
+        wxTextEntry::Clear();
+}
+
+void wxComboBox::GetSelection(long *from, long *to) const
+{
+    if ( !HasFlag(wxCB_READONLY) )

     {
     {

-        SetValue(value);
+        wxTextEntry::GetSelection(from, to);

     }
     }

-
-    // do this after appending the values to the combobox so that autosizing
-    // works correctly
-    SetSize(pos.x, pos.y, size.x, size.y);
-
-    // 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) )
+    else // text selection doesn't make sense for read only comboboxes

     {
     {

-        gs_wndprocEdit = (WXFARPROC)::SetWindowLong
-                                      (
-                                        (HWND)GetEditHWND(),
-                                        GWL_WNDPROC,
-                                        (LPARAM)wxComboEditWndProc
-                                      );
+        if ( from )
+            *from = -1;
+        if ( to )
+            *to = -1;

     }
     }

-
-    // and finally, show the control
-    Show(TRUE);
-
-    return TRUE;

 }
 
 }
 

-void wxComboBox::SetValue(const wxString& value)
+bool wxComboBox::IsEditable() const

 {
 {

-    if ( HasFlag(wxCB_READONLY) )
-        SetStringSelection(value);
-    else
-        SetWindowText(GetHwnd(), value.c_str());
+    return !HasFlag(wxCB_READONLY) && wxTextEntry::IsEditable();

 }
 
 }
 

-// Clipboard operations
-void wxComboBox::Copy()
+// ----------------------------------------------------------------------------
+// standard event handling
+// ----------------------------------------------------------------------------
+
+void wxComboBox::OnCut(wxCommandEvent& WXUNUSED(event))

 {
 {

-  SendMessage(GetHwnd(), WM_COPY, 0, 0L);
+    Cut();

 }
 
 }
 

-void wxComboBox::Cut()
+void wxComboBox::OnCopy(wxCommandEvent& WXUNUSED(event))

 {
 {

-  SendMessage(GetHwnd(), WM_CUT, 0, 0L);
+    Copy();

 }
 
 }
 

-void wxComboBox::Paste()
+void wxComboBox::OnPaste(wxCommandEvent& WXUNUSED(event))

 {
 {

-  SendMessage(GetHwnd(), WM_PASTE, 0, 0L);
+    Paste();

 }
 
 }
 

-void wxComboBox::SetEditable(bool WXUNUSED(editable))
+void wxComboBox::OnUndo(wxCommandEvent& WXUNUSED(event))

 {
 {

-  // Can't implement in MSW?
-//  HWND hWnd = GetHwnd();
-//  SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
+    Undo();

 }
 
 }
 

-void wxComboBox::SetInsertionPoint(long pos)
+void wxComboBox::OnRedo(wxCommandEvent& WXUNUSED(event))

 {
 {

-    if ( GetWindowStyle() & wxCB_READONLY )
-        return;
+    Redo();
+}

 
 

-#ifdef __WIN32__
-    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::OnDelete(wxCommandEvent& WXUNUSED(event))
+{
+    RemoveSelection();

 }
 
 }
 

-void wxComboBox::SetInsertionPointEnd()
+void wxComboBox::OnSelectAll(wxCommandEvent& WXUNUSED(event))

 {
 {

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

 }
 
 }
 

-long wxComboBox::GetInsertionPoint() const
+void wxComboBox::OnUpdateCut(wxUpdateUIEvent& event)

 {
 {

-#ifdef __WIN32__
-    DWORD Pos=(DWORD)SendMessage(GetHwnd(), CB_GETEDITSEL, 0, 0L);
-    return Pos&0xFFFF;
-#else
-    return 0;
-#endif
+    event.Enable( CanCut() );

 }
 
 }
 

-long wxComboBox::GetLastPosition() const
+void wxComboBox::OnUpdateCopy(wxUpdateUIEvent& event)

 {
 {

-    HWND hEditWnd = (HWND) GetEditHWND();
+    event.Enable( CanCopy() );
+}

 
 

-    // Get number of characters in the last (only) line. We'll add this to the character
-    // index for the last line, 1st position.
-    int lineLength = (int)SendMessage(hEditWnd, EM_LINELENGTH, (WPARAM) 0, (LPARAM)0L);
+void wxComboBox::OnUpdatePaste(wxUpdateUIEvent& event)
+{
+    event.Enable( CanPaste() );
+}

 
 

-    return (long)(lineLength);
+void wxComboBox::OnUpdateUndo(wxUpdateUIEvent& event)
+{
+    event.Enable( IsEditable() && CanUndo() );

 }
 
 }
 

-void wxComboBox::Replace(long from, long to, const wxString& value)
+void wxComboBox::OnUpdateRedo(wxUpdateUIEvent& event)

 {
 {

-#if wxUSE_CLIPBOARD
-    Remove(from, to);
+    event.Enable( IsEditable() && CanRedo() );
+}

 
 

-    // Now replace with 'value', by pasting.
-    wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
+void wxComboBox::OnUpdateDelete(wxUpdateUIEvent& event)
+{
+    event.Enable(IsEditable() && HasSelection());
+}

 
 

-    // Paste into edit control
-    SendMessage(GetHwnd(), WM_PASTE, (WPARAM)0, (LPARAM)0L);
-#endif
+void wxComboBox::OnUpdateSelectAll(wxUpdateUIEvent& event)
+{
+    event.Enable(IsEditable() && !wxTextEntry::IsEmpty());

 }
 
 }
 

-void wxComboBox::Remove(long from, long to)
+#if wxUSE_TOOLTIPS
+
+void wxComboBox::DoSetToolTip(wxToolTip *tip)

 {
 {

-    // Set selection and remove it
-    SetSelection(from, to);
-    SendMessage(GetHwnd(), WM_CUT, (WPARAM)0, (LPARAM)0);
+    wxChoice::DoSetToolTip(tip);
+
+    if ( tip && !HasFlag(wxCB_READONLY) )
+        tip->AddOtherWindow(GetEditHWND());

 }
 
 }
 

-void wxComboBox::SetSelection(long from, long to)
+#endif // wxUSE_TOOLTIPS
+
+#if wxUSE_UXTHEME
+
+bool wxComboBox::SetHint(const wxString& hintOrig)

 {
 {

-    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))
+    wxString hint(hintOrig);
+    if ( wxUxThemeEngine::GetIfActive() )

     {
     {

-      fromChar = 0;
-      toChar = -1;
+        // under XP (but not Vista) there is a bug in cue banners
+        // implementation for combobox edit control: the first character is
+        // partially chopped off, so prepend a space to make it fully visible
+        hint.insert(0, " ");

     }
 
     }
 

-    if (
-#ifdef __WIN32__
-    SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)0, (LPARAM)MAKELONG(fromChar, toChar))
-#else // Win16
-    SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar)
-#endif
-        == CB_ERR )
-    {
-        wxLogDebug(_T("CB_SETEDITSEL failed"));
-    }
+    return wxTextEntry::SetHint(hint);

 }
 
 }
 

-#endif
- // wxUSE_COMBOBOX
+#endif // wxUSE_UXTHEME

 
 

+#endif // wxUSE_COMBOBOX