X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a3870b2ff595ba4bb4f0397ace77ceeb9628e94d..4064f7deac3752bb5b20505daedc4ed750d19dd9:/src/univ/combobox.cpp

diff --git a/src/univ/combobox.cpp b/src/univ/combobox.cpp
index b90ef9ff70..43e9e55172 100644
--- a/src/univ/combobox.cpp
+++ b/src/univ/combobox.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        univ/combobox.cpp
+// Name:        src/univ/combobox.cpp
 // Purpose:     wxComboControl and wxComboBox implementation
 // Author:      Vadim Zeitlin
 // Modified by:
@@ -9,16 +9,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-/*
-    TODO:
-
-   +1. typing in the text should select the string in listbox
-   +2. scrollbars in listbox are unusable
-   +3. the initially selected item is not selected
-   ?4. kbd interface (what does GTK do?)
-    5. there is still autoscrolling without scrollbars - but is it bad?
- */
-
 // ============================================================================
 // declarations
 // ============================================================================
@@ -27,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "univcombobox.h"
-#endif
-
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
@@ -51,6 +37,7 @@
     #include "wx/validate.h"
 #endif
 
+#include "wx/tooltip.h"
 #include "wx/popupwin.h"
 
 #include "wx/univ/renderer.h"
@@ -65,6 +52,12 @@
    3. which passes them to the popup window if it is popped up
  */
 
+// constants
+// ----------------------------------------------------------------------------
+
+// the margin between the text control and the combo button
+static const wxCoord g_comboMargin = 2;
+
 // ----------------------------------------------------------------------------
 // wxComboButton is just a normal button except that it sends commands to the
 // combobox and not its parent
@@ -74,27 +67,37 @@ class wxComboButton : public wxBitmapButton
 {
 public:
     wxComboButton(wxComboControl *combo)
-        : wxBitmapButton(combo->GetParent(), -1, wxNullBitmap,
+        : wxBitmapButton(combo->GetParent(), wxID_ANY, wxNullBitmap,
                          wxDefaultPosition, wxDefaultSize,
-                         wxBORDER_NONE)
+                         wxBORDER_NONE | wxBU_EXACTFIT)
     {
         m_combo = combo;
 
-        wxBitmap bmpNormal, bmpPressed, bmpDisabled;
+        wxBitmap bmpNormal, bmpFocus, bmpPressed, bmpDisabled;
+
+        GetRenderer()->GetComboBitmaps(&bmpNormal,
+                                       &bmpFocus,
+                                       &bmpPressed,
+                                       &bmpDisabled);
 
-        GetRenderer()->GetComboBitmaps(&bmpNormal, &bmpPressed, &bmpDisabled);
         SetBitmapLabel(bmpNormal);
-        SetBitmapFocus(bmpNormal);
-        SetBitmapSelected(bmpPressed);
-        SetBitmapDisabled(bmpDisabled);
+        SetBitmapFocus(bmpFocus.Ok() ? bmpFocus : bmpNormal);
+        SetBitmapSelected(bmpPressed.Ok() ? bmpPressed : bmpNormal);
+        SetBitmapDisabled(bmpDisabled.Ok() ? bmpDisabled : bmpNormal);
 
-        SetSize(bmpNormal.GetWidth(), bmpNormal.GetHeight());
+        SetBestSize(wxDefaultSize);
     }
 
 protected:
-    void OnButton(wxCommandEvent& event) { m_combo->ShowPopup(); }
+    void OnButton(wxCommandEvent& WXUNUSED(event)) { m_combo->ShowPopup(); }
+
+    virtual wxSize DoGetBestClientSize() const
+    {
+        const wxBitmap& bmp = GetBitmapLabel();
 
-    virtual wxSize DoGetBestSize() const { return GetSize(); }
+        return wxSize(bmp.GetWidth(), bmp.GetHeight());
+
+    }
 
 private:
     wxComboControl *m_combo;
@@ -115,9 +118,19 @@ public:
     virtual ~wxComboListBox();
 
     // implement wxComboPopup methods
-    virtual bool SetSelection(const wxString& value);
+    virtual bool SetSelection(const wxString& s);
     virtual wxControl *GetControl() { return this; }
     virtual void OnShow();
+    virtual wxCoord GetBestWidth() const;
+
+    // fix virtual function hiding
+    virtual void SetSelection(int n) { DoSetSelection(n, true); }
+    void SetSelection(int n, bool select) { DoSetSelection(n, select); }
+
+    // used to process wxUniv actions
+    bool PerformAction(const wxControlAction& action,
+                       long numArg,
+                       const wxString& strArg);
 
 protected:
     // we shouldn't return height too big from here
@@ -126,15 +139,16 @@ protected:
     // filter mouse move events happening outside the list box
     void OnMouseMove(wxMouseEvent& event);
 
+    // set m_clicked value from here
+    void OnLeftUp(wxMouseEvent& event);
+
     // called whenever the user selects or activates a listbox item
     void OnSelect(wxCommandEvent& event);
 
-    // used to process wxUniv actions
-    bool PerformAction(const wxControlAction& action,
-                       long numArg,
-                       const wxString& strArg);
-
 private:
+    // has the mouse been released on this control?
+    bool m_clicked;
+
     DECLARE_EVENT_TABLE()
 };
 
@@ -166,13 +180,14 @@ private:
 // ----------------------------------------------------------------------------
 
 BEGIN_EVENT_TABLE(wxComboButton, wxButton)
-    EVT_BUTTON(-1, wxComboButton::OnButton)
+    EVT_BUTTON(wxID_ANY, wxComboButton::OnButton)
 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(wxComboListBox, wxListBox)
-    EVT_LISTBOX(-1, wxComboListBox::OnSelect)
-    EVT_LISTBOX_DCLICK(-1, wxComboListBox::OnSelect)
+    EVT_LISTBOX(wxID_ANY, wxComboListBox::OnSelect)
+    EVT_LISTBOX_DCLICK(wxID_ANY, wxComboListBox::OnSelect)
     EVT_MOTION(wxComboListBox::OnMouseMove)
+    EVT_LEFT_UP(wxComboListBox::OnLeftUp)
 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(wxComboControl, wxControl)
@@ -183,10 +198,10 @@ END_EVENT_TABLE()
 BEGIN_EVENT_TABLE(wxComboTextCtrl, wxTextCtrl)
     EVT_KEY_DOWN(wxComboTextCtrl::OnKey)
     EVT_KEY_UP(wxComboTextCtrl::OnKey)
-    EVT_TEXT(-1, wxComboTextCtrl::OnText)
+    EVT_TEXT(wxID_ANY, wxComboTextCtrl::OnText)
 END_EVENT_TABLE()
 
-IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl);
+IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
 
 // ============================================================================
 // implementation
@@ -200,7 +215,9 @@ void wxComboControl::Init()
 {
     m_popup = (wxComboPopup *)NULL;
     m_winPopup = (wxPopupComboWindow *)NULL;
-    m_isPopupShown = FALSE;
+    m_isPopupShown = false;
+    m_btn = NULL;
+    m_text = NULL;
 }
 
 bool wxComboControl::Create(wxWindow *parent,
@@ -217,7 +234,7 @@ bool wxComboControl::Create(wxWindow *parent,
     style &= ~wxBORDER_NONE;
     style |= wxBORDER_SUNKEN;
     if ( !wxControl::Create(parent, id, pos, size, style, validator, name) )
-        return FALSE;
+        return false;
 
     // create the text control and the button as our siblings (*not* children),
     // don't care about size/position here - they will be set in DoMoveWindow()
@@ -229,17 +246,18 @@ bool wxComboControl::Create(wxWindow *parent,
 
     // for compatibility with the other ports, the height specified is the
     // combined height of the combobox itself and the popup
-    if ( size.y == -1 )
+    if ( size.y == wxDefaultCoord )
     {
         // ok, use default height for popup too
-        m_heightPopup = -1;
+        m_heightPopup = wxDefaultCoord;
     }
     else
     {
         m_heightPopup = size.y - DoGetBestSize().y;
     }
 
-    DoSetSize(pos.x, pos.y, size.x, size.y);
+    SetBestSize(size);
+    Move(pos);
 
     // create the popup window immediately here to allow creating the controls
     // with parent == GetPopupWindow() from the derived class ctor
@@ -247,20 +265,20 @@ bool wxComboControl::Create(wxWindow *parent,
 
     // have to disable this window to avoid interfering it with message
     // processing to the text and the button... but pretend it is enabled to
-    // make IsEnabled() return TRUE
-    wxControl::Enable(FALSE); // don't use non virtual Disable() here!
-    m_isEnabled = TRUE;
+    // make IsEnabled() return true
+    wxControl::Enable(false); // don't use non virtual Disable() here!
+    m_isEnabled = true;
 
     CreateInputHandler(wxINP_HANDLER_COMBOBOX);
 
-    return TRUE;
+    return true;
 }
 
 wxComboControl::~wxComboControl()
 {
     // as the button and the text control are the parent's children and not
     // ours, we have to delete them manually - they are not deleted
-    // automatically by wxWindows when we're deleted
+    // automatically by wxWidgets when we're deleted
     delete m_btn;
     delete m_text;
 
@@ -272,7 +290,7 @@ wxComboControl::~wxComboControl()
 // ----------------------------------------------------------------------------
 
 void wxComboControl::DoSetSize(int x, int y,
-                               int width, int height,
+                               int width, int WXUNUSED(height),
                                int sizeFlags)
 {
     // combo height is always fixed
@@ -283,8 +301,15 @@ wxSize wxComboControl::DoGetBestClientSize() const
 {
     wxSize sizeBtn = m_btn->GetBestSize(),
            sizeText = m_text->GetBestSize();
+    wxCoord widthPopup = 0;
+
+    if (m_popup)
+    {
+        widthPopup = m_popup->GetBestWidth();
+    }
 
-    return wxSize(sizeBtn.x + sizeText.x, wxMax(sizeBtn.y, sizeText.y));
+    return wxSize(wxMax(sizeText.x + g_comboMargin + sizeBtn.x, widthPopup),
+                  wxMax(sizeBtn.y, sizeText.y));
 }
 
 void wxComboControl::DoMoveWindow(int x, int y, int width, int height)
@@ -298,12 +323,12 @@ void wxComboControl::DoMoveWindow(int x, int y, int width, int height)
     width -= rectBorders.x + rectBorders.width;
     height -= rectBorders.y + rectBorders.height;
 
-    wxSize sizeBtn = m_btn->GetSize(),
-           sizeText = m_text->GetSize();
+    wxSize sizeBtn = m_btn->GetBestSize();
 
     wxCoord wText = width - sizeBtn.x;
-    m_text->SetSize(x, y, wText, height);
-    m_btn->SetSize(x + wText, y, -1, height);
+    wxPoint p = GetParent() ? GetParent()->GetClientAreaOrigin() : wxPoint(0,0);
+    m_text->SetSize(x - p.x, y - p.y, wText, height);
+    m_btn->SetSize(x - p.x + wText, y - p.y, sizeBtn.x, height);
 }
 
 // ----------------------------------------------------------------------------
@@ -313,25 +338,51 @@ void wxComboControl::DoMoveWindow(int x, int y, int width, int height)
 bool wxComboControl::Enable(bool enable)
 {
     if ( !wxControl::Enable(enable) )
-        return FALSE;
+        return false;
 
     m_btn->Enable(enable);
     m_text->Enable(enable);
 
-    return TRUE;
+    return true;
 }
 
 bool wxComboControl::Show(bool show)
 {
     if ( !wxControl::Show(show) )
-        return FALSE;
+        return false;
+
+    if (m_btn)
+        m_btn->Show(show);
 
-    m_btn->Show(show);
-    m_text->Show(show);
+    if (m_text)
+        m_text->Show(show);
 
-    return TRUE;
+    return true;
 }
 
+#if wxUSE_TOOLTIPS
+void wxComboControl::DoSetToolTip(wxToolTip *tooltip)
+{
+    wxControl::DoSetToolTip(tooltip);
+
+    // Set tool tip for button and text box
+    if (m_text && m_btn)
+    {
+        if (tooltip)
+        {
+            const wxString &tip = tooltip->GetTip();
+            m_text->SetToolTip(tip);
+            m_btn->SetToolTip(tip);
+        }
+        else
+        {
+            m_text->SetToolTip(NULL);
+            m_btn->SetToolTip(NULL);
+        }
+    }
+}
+#endif // wxUSE_TOOLTIPS
+
 // ----------------------------------------------------------------------------
 // popup window handling
 // ----------------------------------------------------------------------------
@@ -350,7 +401,7 @@ void wxComboControl::ShowPopup()
 
     // size and position the popup window correctly
     m_winPopup->SetSize(GetSize().x,
-                        m_heightPopup == -1 ? control->GetBestSize().y
+                        m_heightPopup == wxDefaultCoord ? control->GetBestSize().y
                                             : m_heightPopup);
     wxSize sizePopup = m_winPopup->GetClientSize();
     control->SetSize(0, 0, sizePopup.x, sizePopup.y);
@@ -366,11 +417,12 @@ void wxComboControl::ShowPopup()
     m_winPopup->PositionNearCombo();
 
     // show it
+    m_popup->OnShow();
     m_winPopup->Popup(m_text);
     m_text->SelectAll();
     m_popup->SetSelection(m_text->GetValue());
 
-    m_isPopupShown = TRUE;
+    m_isPopupShown = true;
 }
 
 void wxComboControl::HidePopup()
@@ -380,7 +432,7 @@ void wxComboControl::HidePopup()
 
     m_winPopup->Dismiss();
 
-    m_isPopupShown = FALSE;
+    m_isPopupShown = false;
 }
 
 void wxComboControl::OnSelect(const wxString& value)
@@ -405,7 +457,7 @@ wxComboTextCtrl::wxComboTextCtrl(wxComboControl *combo,
                                  const wxString& value,
                                  long style,
                                  const wxValidator& validator)
-               : wxTextCtrl(combo->GetParent(), -1, value,
+               : wxTextCtrl(combo->GetParent(), wxID_ANY, value,
                             wxDefaultPosition, wxDefaultSize,
                             wxBORDER_NONE | style,
                             validator)
@@ -468,7 +520,7 @@ void wxComboTextCtrl::OnKey(wxKeyEvent& event)
 // ----------------------------------------------------------------------------
 
 wxComboListBox::wxComboListBox(wxComboControl *combo, int style)
-              : wxListBox(combo->GetPopupWindow(), -1,
+              : wxListBox(combo->GetPopupWindow(), wxID_ANY,
                           wxDefaultPosition, wxDefaultSize,
                           0, NULL,
                           wxBORDER_SIMPLE | wxLB_INT_HEIGHT | style),
@@ -488,7 +540,7 @@ bool wxComboListBox::SetSelection(const wxString& value)
     // always matches), but we want to show the first one in such case
     if ( value.empty() )
     {
-        if ( GetCount() )
+        if ( GetCount() > 0 )
         {
             wxListBox::SetSelection(0);
         }
@@ -497,30 +549,36 @@ bool wxComboListBox::SetSelection(const wxString& value)
     else if ( !FindItem(value) )
     {
         // no match att all
-        return FALSE;
+        return false;
     }
 
-    return TRUE;
+    return true;
 }
 
 void wxComboListBox::OnSelect(wxCommandEvent& event)
 {
-    // first let the user code have the event
-
-    // all fields are already filled by the listbox, just change the event
-    // type and send it to the combo
-    wxCommandEvent event2 = event;
-    event2.SetEventType(wxEVT_COMMAND_COMBOBOX_SELECTED);
-    event2.SetEventObject(m_combo);
-    event2.SetId(m_combo->GetId());
-    m_combo->ProcessEvent(event2);
-
-    // next update the combo and close the listbox
-    m_combo->OnSelect(event.GetString());
+    if ( m_clicked )
+    {
+        // first update the combo and close the listbox
+        m_combo->OnSelect(event.GetString());
+
+        // next let the user code have the event
+
+        // all fields are already filled by the listbox, just change the event
+        // type and send it to the combo
+        wxCommandEvent event2 = event;
+        event2.SetEventType(wxEVT_COMMAND_COMBOBOX_SELECTED);
+        event2.SetEventObject(m_combo);
+        event2.SetId(m_combo->GetId());
+        m_combo->ProcessEvent(event2);
+    }
+    //else: ignore the events resulting from just moving the mouse initially
 }
 
 void wxComboListBox::OnShow()
 {
+    // nobody clicked us yet
+    m_clicked = false;
 }
 
 bool wxComboListBox::PerformAction(const wxControlAction& action,
@@ -533,18 +591,26 @@ bool wxComboListBox::PerformAction(const wxControlAction& action,
         // we don't let the listbox handle this as instead of just using the
         // single key presses, as usual, we use the text ctrl value as prefix
         // and this is done by wxComboControl itself
-        return TRUE;
+        return true;
     }
 
     return wxListBox::PerformAction(action, numArg, strArg);
 }
 
+void wxComboListBox::OnLeftUp(wxMouseEvent& event)
+{
+    // we should dismiss the combo now
+    m_clicked = true;
+
+    event.Skip();
+}
+
 void wxComboListBox::OnMouseMove(wxMouseEvent& event)
 {
     // while a wxComboListBox is shown, it always has capture, so if it doesn't
     // we're about to go away anyhow (normally this shouldn't happen at all,
     // but I don't put assert here as it just might do on other platforms and
-    // it doesn't break anythign anyhow)
+    // it doesn't break anything anyhow)
     if ( this == wxWindow::GetCapture() )
     {
         if ( HitTest(event.GetPosition()) == wxHT_WINDOW_INSIDE )
@@ -557,6 +623,12 @@ void wxComboListBox::OnMouseMove(wxMouseEvent& event)
     }
 }
 
+wxCoord wxComboListBox::GetBestWidth() const
+{
+    wxSize size = wxListBox::GetBestSize();
+    return size.x;
+}
+
 wxSize wxComboListBox::DoGetBestClientSize() const
 {
     // don't return size too big or we risk to not fit on the screen
@@ -583,13 +655,44 @@ void wxComboBox::Init()
     m_lbox = (wxListBox *)NULL;
 }
 
+wxComboBox::wxComboBox(wxWindow *parent,
+                       wxWindowID id,
+                       const wxString& value,
+                       const wxPoint& pos,
+                       const wxSize& size,
+                       const wxArrayString& choices,
+                       long style,
+                       const wxValidator& validator,
+                       const wxString& name)
+{
+    Init();
+
+    Create(parent, id, value, pos, size, choices, style, validator, name);
+}
+
+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);
+}
+
 bool wxComboBox::Create(wxWindow *parent,
                         wxWindowID id,
                         const wxString& value,
                         const wxPoint& pos,
                         const wxSize& size,
                         int n,
-                        const wxString *choices,
+                        const wxString choices[],
                         long style,
                         const wxValidator& validator,
                         const wxString& name)
@@ -597,7 +700,7 @@ bool wxComboBox::Create(wxWindow *parent,
     if ( !wxComboControl::Create(parent, id, value, pos, size, style,
                                  validator, name) )
     {
-        return FALSE;
+        return false;
     }
 
     wxComboListBox *combolbox =
@@ -607,7 +710,7 @@ bool wxComboBox::Create(wxWindow *parent,
 
     SetPopupControl(combolbox);
 
-    return TRUE;
+    return true;
 }
 
 wxComboBox::~wxComboBox()
@@ -658,7 +761,7 @@ long wxComboBox::GetInsertionPoint() const
     return GetText()->GetInsertionPoint();
 }
 
-long wxComboBox::GetLastPosition() const
+wxTextPos wxComboBox::GetLastPosition() const
 {
     return GetText()->GetLastPosition();
 }
@@ -690,36 +793,46 @@ void wxComboBox::SetEditable(bool editable)
 void wxComboBox::Clear()
 {
     GetLBox()->Clear();
+    GetText()->SetValue(wxEmptyString);
 }
 
 void wxComboBox::Delete(int n)
 {
+    wxCHECK_RET( IsValid(n), _T("invalid index in wxComboBox::Delete") );
+
+    if (GetSelection() == n)
+        GetText()->SetValue(wxEmptyString);
+
     GetLBox()->Delete(n);
 }
 
-int wxComboBox::GetCount() const
+size_t wxComboBox::GetCount() const
 {
     return GetLBox()->GetCount();
 }
 
 wxString wxComboBox::GetString(int n) const
 {
+    wxCHECK_MSG( IsValid(n), wxEmptyString, _T("invalid index in wxComboBox::GetString") );
+
     return GetLBox()->GetString(n);
 }
 
 void wxComboBox::SetString(int n, const wxString& s)
 {
+    wxCHECK_RET( IsValid(n), _T("invalid index in wxComboBox::SetString") );
+
     GetLBox()->SetString(n, s);
 }
 
-int wxComboBox::FindString(const wxString& s) const
+int wxComboBox::FindString(const wxString& s, bool bCase) const
 {
-    return GetLBox()->FindString(s);
+    return GetLBox()->FindString(s, bCase);
 }
 
-void wxComboBox::Select(int n)
+void wxComboBox::SetSelection(int n)
 {
-    wxCHECK_RET( (n >= 0) && (n < GetCount()), _T("invalid combobox index") );
+    wxCHECK_RET( IsValid(n), _T("invalid index in wxComboBox::Select") );
 
     GetLBox()->SetSelection(n);
     GetText()->SetValue(GetLBox()->GetString(n));
@@ -727,8 +840,15 @@ void wxComboBox::Select(int n)
 
 int wxComboBox::GetSelection() const
 {
+#if 1 // FIXME:: What is the correct behavior?
     // if the current value isn't one of the listbox strings, return -1
+    return GetLBox()->GetSelection();
+#else
+    // Why oh why is this done this way?
+    // It is not because the value displayed in the text can be found
+    // in the list that it is the item that is selected!
     return FindString(GetText()->GetValue());
+#endif
 }
 
 int wxComboBox::DoAppend(const wxString& item)
@@ -736,6 +856,18 @@ int wxComboBox::DoAppend(const wxString& item)
     return GetLBox()->Append(item);
 }
 
+int wxComboBox::DoInsert(const wxString& item, int pos)
+{
+    wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
+    wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
+
+    if ((size_t)pos == GetCount())
+        return DoAppend(item);
+
+    GetLBox()->Insert(item, pos);
+    return pos;
+}
+
 void wxComboBox::DoSetItemClientData(int n, void* clientData)
 {
     GetLBox()->SetClientData(n, clientData);
@@ -756,11 +888,74 @@ wxClientData* wxComboBox::DoGetItemClientObject(int n) const
     return GetLBox()->GetClientObject(n);
 }
 
+bool wxComboBox::IsEditable() const
+{
+    return GetText() != NULL && (!HasFlag(wxCB_READONLY) || GetText()->IsEditable());
+}
+
+void wxComboBox::Undo()
+{
+    if (IsEditable())
+        GetText()->Undo();
+}
+
+void wxComboBox::Redo()
+{
+    if (IsEditable())
+        GetText()->Redo();
+}
+
+void wxComboBox::SelectAll()
+{
+    GetText()->SelectAll();
+}
+
+bool wxComboBox::CanCopy() const
+{
+    if (GetText() != NULL)
+        return GetText()->CanCopy();
+    else
+        return false;
+}
+
+bool wxComboBox::CanCut() const
+{
+    if (GetText() != NULL)
+        return GetText()->CanCut();
+    else
+        return false;
+}
+
+bool wxComboBox::CanPaste() const
+{
+    if (IsEditable())
+        return GetText()->CanPaste();
+    else
+        return false;
+}
+
+bool wxComboBox::CanUndo() const
+{
+    if (IsEditable())
+        return GetText()->CanUndo();
+    else
+        return false;
+}
+
+bool wxComboBox::CanRedo() const
+{
+    if (IsEditable())
+        return GetText()->CanRedo();
+    else
+        return false;
+}
+
+
 // ----------------------------------------------------------------------------
 // input handling
 // ----------------------------------------------------------------------------
 
-void wxComboControl::OnKey(wxCommandEvent& event)
+void wxComboControl::OnKey(wxKeyEvent& event)
 {
     if ( m_isPopupShown )
     {
@@ -777,14 +972,14 @@ bool wxComboControl::PerformAction(const wxControlAction& action,
                                    long numArg,
                                    const wxString& strArg)
 {
-    bool processed = FALSE;
+    bool processed = false;
     if ( action == wxACTION_COMBOBOX_POPUP )
     {
         if ( !m_isPopupShown )
         {
             ShowPopup();
 
-            processed = TRUE;
+            processed = true;
         }
     }
     else if ( action == wxACTION_COMBOBOX_DISMISS )
@@ -793,7 +988,7 @@ bool wxComboControl::PerformAction(const wxControlAction& action,
         {
             HidePopup();
 
-            processed = TRUE;
+            processed = true;
         }
     }
 
@@ -803,7 +998,7 @@ bool wxComboControl::PerformAction(const wxControlAction& action,
         return wxControl::PerformAction(action, numArg, strArg);
     }
 
-    return TRUE;
+    return true;
 }
 
 // ----------------------------------------------------------------------------
@@ -815,7 +1010,7 @@ wxStdComboBoxInputHandler::wxStdComboBoxInputHandler(wxInputHandler *inphand)
 {
 }
 
-bool wxStdComboBoxInputHandler::HandleKey(wxControl *control,
+bool wxStdComboBoxInputHandler::HandleKey(wxInputConsumer *consumer,
                                           const wxKeyEvent& event,
                                           bool pressed)
 {
@@ -833,15 +1028,15 @@ bool wxStdComboBoxInputHandler::HandleKey(wxControl *control,
                 break;
         }
 
-        if ( !!action )
+        if ( !action.IsEmpty() )
         {
-            control->PerformAction(action);
+            consumer->PerformAction(action);
 
-            return TRUE;
+            return true;
         }
     }
 
-    return wxStdInputHandler::HandleKey(control, event, pressed);
+    return wxStdInputHandler::HandleKey(consumer, event, pressed);
 }
 
 #endif // wxUSE_COMBOBOX