update button style to include BS_MULTILINE when a multiline label is set

[wxWidgets.git] / src / os2 / listbox.cpp

diff --git a/src/os2/listbox.cpp b/src/os2/listbox.cpp
index 1dad21e12c4167ff042aa439ebb08261f70c4caf..3755c4109eb9af56b2db9e742e0cef0c81ce8e7a 100644 (file)
--- a/src/os2/listbox.cpp
+++ b/src/os2/listbox.cpp
@@ -1,27 +1,77 @@
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////

-// Name:        listbox.cpp
+// Name:        src/os2/listbox.cpp

 // Purpose:     wxListBox
 // Purpose:     wxListBox

-// Author:      AUTHOR
+// Author:      David Webster

 // Modified by:
 // Modified by:

-// Created:     ??/??/98
+// Created:     10/09/99

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) AUTHOR
+// Copyright:   (c) David Webster

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

-#ifdef __GNUG__
-#pragma implementation "listbox.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_LISTBOX

 
 #include "wx/listbox.h"
 
 #include "wx/listbox.h"

-#include "wx/settings.h"
-#include "wx/dynarray.h"
-#include "wx/log.h"

 
 

-#if !USE_SHARED_LIBRARY
-  IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
+#ifndef WX_PRECOMP
+    #include "wx/dynarray.h"
+    #include "wx/settings.h"
+    #include "wx/brush.h"
+    #include "wx/font.h"
+    #include "wx/dc.h"
+    #include "wx/dcscreen.h"
+    #include "wx/utils.h"
+    #include "wx/scrolwin.h"
+    #include "wx/log.h"
+    #include "wx/window.h"
+#endif
+
+#include "wx/os2/private.h"
+
+#define INCL_M
+#include <os2.h>
+
+#if wxUSE_OWNER_DRAWN
+    #include  "wx/ownerdrw.h"

 #endif
 
 #endif
 

+  IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
+
+// ============================================================================
+// list box item declaration and implementation
+// ============================================================================
+
+#if wxUSE_OWNER_DRAWN
+
+class wxListBoxItem : public wxOwnerDrawn
+{
+public:
+    wxListBoxItem(const wxString& rsStr = wxEmptyString);
+};
+
+wxListBoxItem::wxListBoxItem(
+  const wxString& rsStr
+)
+: wxOwnerDrawn( rsStr
+               ,false
+              )
+{
+    //
+    // No bitmaps/checkmarks
+    //
+    SetMarginWidth(0);
+} // end of wxListBoxItem::wxListBoxItem
+
+wxOwnerDrawn* wxListBox::CreateItem( size_t WXUNUSED(n) )
+{
+    return new wxListBoxItem();
+} // end of wxListBox::CreateItem
+
+#endif  //USE_OWNER_DRAWN
+

 // ============================================================================
 // list box control implementation
 // ============================================================================
 // ============================================================================
 // list box control implementation
 // ============================================================================


@@ -29,207 +79,742 @@
 // Listbox item
 wxListBox::wxListBox()
 {
 // Listbox item
 wxListBox::wxListBox()
 {

-  m_noItems = 0;
-  m_selected = 0;
+    m_nNumItems = 0;
+    m_nSelected = 0;
+} // end of wxListBox::wxListBox
+
+bool wxListBox::Create(
+  wxWindow*                         pParent
+, wxWindowID                        vId
+, const wxPoint&                    rPos
+, const wxSize&                     rSize
+, const wxArrayString&              asChoices
+, long                              lStyle
+, const wxValidator&                rValidator
+, const wxString&                   rsName
+)
+{
+    wxCArrayString chs(asChoices);
+
+    return Create(pParent, vId, rPos, rSize, chs.GetCount(), chs.GetStrings(),
+                  lStyle, rValidator, rsName);

 }
 
 }
 

-bool wxListBox::Create(wxWindow *parent, wxWindowID id,
-                       const wxPoint& pos,
-                       const wxSize& size,
-                       int n, const wxString choices[],
-                       long style,
-                       const wxValidator& validator,
-                       const wxString& name)
+bool wxListBox::Create( wxWindow* pParent,
+                        wxWindowID vId,
+                        const wxPoint& rPos,
+                        const wxSize& rSize,
+                        int n,
+                        const wxString asChoices[],
+                        long lStyle,
+                        const wxValidator& rValidator,
+                        const wxString& rsName )

 {
 {

-  m_noItems = n;
-  m_selected = 0;
-
-  SetName(name);
-  SetValidator(validator);
+    m_nNumItems = 0;
+    m_hWnd      = 0;
+    m_nSelected = 0;

 
 

-  if (parent) parent->AddChild(this);
+    SetName(rsName);
+#if wxUSE_VALIDATORS
+    SetValidator(rValidator);
+#endif

 
 

-  wxSystemSettings settings;
-  SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
+    if (pParent)
+        pParent->AddChild(this);
+
+    wxSystemSettings                vSettings;
+
+    SetBackgroundColour(vSettings.GetColour(wxSYS_COLOUR_WINDOW));
+    SetForegroundColour(pParent->GetForegroundColour());
+
+    m_windowId = (vId == -1) ? (int)NewControlId() : vId;
+
+    int                             nX      = rPos.x;
+    int                             nY      = rPos.y;
+    int                             nWidth  = rSize.x;
+    int                             nHeight = rSize.y;
+
+    m_windowStyle = lStyle;
+
+    lStyle = WS_VISIBLE;
+
+    if (m_windowStyle & wxCLIP_SIBLINGS )
+        lStyle |= WS_CLIPSIBLINGS;
+    if (m_windowStyle & wxLB_MULTIPLE)
+        lStyle |= LS_MULTIPLESEL;
+    else if (m_windowStyle & wxLB_EXTENDED)
+        lStyle |= LS_EXTENDEDSEL;
+    if (m_windowStyle & wxLB_HSCROLL)
+        lStyle |= LS_HORZSCROLL;
+    if (m_windowStyle & wxLB_OWNERDRAW)
+        lStyle |= LS_OWNERDRAW;
+
+    //
+    // Without this style, you get unexpected heights, so e.g. constraint layout
+    // doesn't work properly
+    //
+    lStyle |= LS_NOADJUSTPOS;
+
+    m_hWnd = (WXHWND)::WinCreateWindow( GetWinHwnd(pParent) // Parent
+                                       ,WC_LISTBOX          // Default Listbox class
+                                       ,"LISTBOX"           // Control's name
+                                       ,lStyle              // Initial Style
+                                       ,0, 0, 0, 0          // Position and size
+                                       ,GetWinHwnd(pParent) // Owner
+                                       ,HWND_TOP            // Z-Order
+                                       ,(HMENU)m_windowId   // Id
+                                       ,NULL                // Control Data
+                                       ,NULL                // Presentation Parameters
+                                      );
+    if (m_hWnd == 0)
+    {
+        return false;
+    }

 
 

-  m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
+    //
+    // Subclass again for purposes of dialog editing mode
+    //
+    SubclassWin(m_hWnd);

 
 

-  // TODO create listbox
+    LONG                            lUi;

 
 

-  return FALSE;
-}
+    for (lUi = 0; lUi < (LONG)n; lUi++)
+    {
+        Append(asChoices[lUi]);
+    }
+    wxFont*                          pTextFont = new wxFont( 10
+                                                            ,wxMODERN
+                                                            ,wxNORMAL
+                                                            ,wxNORMAL
+                                                           );
+    SetFont(*pTextFont);
+
+    //
+    // Set OS/2 system colours for Listbox items and highlighting
+    //
+    wxColour                        vColour;
+
+    vColour = wxSystemSettingsNative::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
+
+    LONG                            lColor = (LONG)vColour.GetPixel();
+
+    ::WinSetPresParam( m_hWnd
+                      ,PP_HILITEFOREGROUNDCOLOR
+                      ,sizeof(LONG)
+                      ,(PVOID)&lColor
+                     );
+    vColour = wxSystemSettingsNative::GetColour(wxSYS_COLOUR_HIGHLIGHT);
+    lColor = (LONG)vColour.GetPixel();
+    ::WinSetPresParam( m_hWnd
+                      ,PP_HILITEBACKGROUNDCOLOR
+                      ,sizeof(LONG)
+                      ,(PVOID)&lColor
+                     );
+
+    SetXComp(0);
+    SetYComp(0);
+    SetSize( nX
+            ,nY
+            ,nWidth
+            ,nHeight
+           );
+    delete pTextFont;
+    return true;
+} // end of wxListBox::Create

 
 wxListBox::~wxListBox()
 {
 
 wxListBox::~wxListBox()
 {

-}
+#if wxUSE_OWNER_DRAWN
+    size_t lUiCount = m_aItems.Count();

 
 

-void wxListBox::SetFirstItem(int N)
-{
-    // TODO
-}
+    while (lUiCount-- != 0)
+    {
+        delete m_aItems[lUiCount];
+    }
+#endif // wxUSE_OWNER_DRAWN
+} // end of wxListBox::~wxListBox

 
 

-void wxListBox::SetFirstItem(const wxString& s)
+void wxListBox::SetupColours()

 {
 {

-    // TODO
-}
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
+    SetForegroundColour(GetParent()->GetForegroundColour());
+} // end of wxListBox::SetupColours

 
 

-void wxListBox::Delete(int N)
-{
-  m_noItems --;
-    // TODO
-}
+// ----------------------------------------------------------------------------
+// implementation of wxListBoxBase methods
+// ----------------------------------------------------------------------------

 
 

-void wxListBox::Append(const wxString& item)
+void wxListBox::DoSetFirstItem(int N)

 {
 {

-  m_noItems ++;
+    wxCHECK_RET( IsValid(N),
+                 wxT("invalid index in wxListBox::SetFirstItem") );

 
 

-  // TODO
-}
+    ::WinSendMsg(GetHwnd(), LM_SETTOPINDEX, MPFROMLONG(N), (MPARAM)0);
+} // end of wxListBox::DoSetFirstItem

 
 

-void wxListBox::Append(const wxString& item, char *Client_data)
+void wxListBox::DoDeleteOneItem(unsigned int n)
+{
+    wxCHECK_RET( IsValid(n),
+                 wxT("invalid index in wxListBox::Delete") );
+
+#if wxUSE_OWNER_DRAWN
+    delete m_aItems[n];
+    m_aItems.RemoveAt(n);
+#endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN
+
+    ::WinSendMsg(GetHwnd(), LM_DELETEITEM, (MPARAM)n, (MPARAM)0);
+    m_nNumItems--;
+} // end of wxListBox::DoSetFirstItem
+
+int wxListBox::DoInsertItems(const wxArrayStringsAdapter & items,
+                             unsigned int pos,
+                             void **clientData,
+                             wxClientDataType type)

 {
 {

-  m_noItems ++;
+    long lIndex = 0;
+    LONG lIndexType = 0;
+    bool incrementPos = false;
+
+    if (IsSorted())
+        lIndexType = LIT_SORTASCENDING;
+    else if (pos == GetCount())
+        lIndexType = LIT_END;
+    else
+    {
+        lIndexType = (LONG)pos;
+        incrementPos = true;
+    }

 
 

-  // TODO
-}
+    int n = wxNOT_FOUND;

 
 

-void wxListBox::Set(int n, const wxString *choices, char** clientData)
-{
-  m_noItems = n;
+    unsigned int count = items.GetCount();
+    for (unsigned int i = 0; i < count; i++)
+    {
+        n = (int)::WinSendMsg(GetHwnd(), LM_INSERTITEM, (MPARAM)lIndexType, (MPARAM)items[i].wx_str());
+        if (n < 0)
+        {
+            wxLogLastError(_T("WinSendMsg(LM_INSERTITEM)"));
+            n = wxNOT_FOUND;
+            break;
+        }
+        ++m_nNumItems;
+
+#if wxUSE_OWNER_DRAWN
+        if (HasFlag(wxLB_OWNERDRAW))
+        {
+            wxOwnerDrawn*               pNewItem = CreateItem(n); // dummy argument
+            wxScreenDC                  vDc; // FIXME: is it really needed here?
+    
+            pNewItem->SetName(items[i]);
+            m_aItems.Insert(pNewItem, n);
+            ::WinSendMsg(GetHwnd(), LM_SETITEMHANDLE, (MPARAM)n, MPFROMP(pNewItem));
+            pNewItem->SetFont(GetFont());
+        }
+#endif
+        AssignNewItemClientData(n, clientData, i, type);

 
 

-  // TODO
-}
+        if (incrementPos)
+            ++lIndexType;
+    }

 
 

-int wxListBox::FindString(const wxString& s) const
-{
-    // TODO
-    return -1;
-}
+    return n;
+} // end of wxListBox::DoInsertAppendItemsWithData

 
 

-void wxListBox::Clear()
+void wxListBox::DoClear()

 {
 {

-  m_noItems = 0;
-  // TODO
-}
+#if wxUSE_OWNER_DRAWN
+    unsigned int lUiCount = m_aItems.Count();

 
 

-void wxListBox::SetSelection(int N, bool select)
-{
-    // TODO
-}
+    while (lUiCount-- != 0)
+    {
+        delete m_aItems[lUiCount];
+    }
+
+    m_aItems.Clear();
+#endif // wxUSE_OWNER_DRAWN
+    ::WinSendMsg(GetHwnd(), LM_DELETEALL, (MPARAM)0, (MPARAM)0);

 
 

-bool wxListBox::Selected(int N) const
+    m_nNumItems = 0;
+} // end of wxListBox::Clear
+
+void wxListBox::DoSetSelection( int N, bool bSelect)

 {
 {

-    // TODO
-    return FALSE;
-}
+    wxCHECK_RET( IsValid(N),
+                 wxT("invalid index in wxListBox::SetSelection") );
+    ::WinSendMsg( GetHwnd()
+                 ,LM_SELECTITEM
+                 ,MPFROMLONG(N)
+                 ,(MPARAM)bSelect
+                );
+    if(m_windowStyle & wxLB_OWNERDRAW)
+        Refresh();
+} // end of wxListBox::SetSelection
+
+bool wxListBox::IsSelected( int N ) const
+{
+    wxCHECK_MSG( IsValid(N), false,
+                 wxT("invalid index in wxListBox::Selected") );
+
+    LONG                            lItem;
+
+    if (GetWindowStyleFlag() & wxLB_EXTENDED)
+    {
+        if (N == 0)
+            lItem = LONGFROMMR(::WinSendMsg(GetHwnd(), LM_QUERYSELECTION, (MPARAM)LIT_FIRST, (MPARAM)0));
+        else
+            lItem = LONGFROMMR(::WinSendMsg(GetHwnd(), LM_QUERYSELECTION, (MPARAM)(N - 1), (MPARAM)0));
+    }
+    else
+    {
+        lItem = LONGFROMMR(::WinSendMsg(GetHwnd(), LM_QUERYSELECTION, (MPARAM)LIT_FIRST, (MPARAM)0));
+    }
+    return (lItem == (LONG)N && lItem != LIT_NONE);
+} // end of wxListBox::IsSelected

 
 

-void wxListBox::Deselect(int N)
+void* wxListBox::DoGetItemClientData(unsigned int n) const

 {
 {

-    // TODO
-}
+    wxCHECK_MSG( IsValid(n), NULL,
+                 wxT("invalid index in wxListBox::GetClientData") );
+
+    return((void *)::WinSendMsg(GetHwnd(), LM_QUERYITEMHANDLE, MPFROMLONG(n), (MPARAM)0));
+} // end of wxListBox::DoGetItemClientData

 
 

-char *wxListBox::GetClientData(int N) const
+void wxListBox::DoSetItemClientData(unsigned int n, void* pClientData)

 {
 {

-    // TODO
-    return (char *)NULL;
-}
+    wxCHECK_RET( IsValid(n),
+                 wxT("invalid index in wxListBox::SetClientData") );
+
+#if wxUSE_OWNER_DRAWN
+    if ( m_windowStyle & wxLB_OWNERDRAW )
+    {
+        //
+        // Client data must be pointer to wxOwnerDrawn, otherwise we would crash
+        // in OnMeasure/OnDraw.
+        //
+        wxFAIL_MSG(wxT("Can't use client data with owner-drawn listboxes"));
+    }
+#endif // wxUSE_OWNER_DRAWN

 
 

-void wxListBox::SetClientData(int N, char *Client_data)
+    ::WinSendMsg(GetHwnd(), LM_SETITEMHANDLE, MPFROMLONG(n), MPFROMP(pClientData));
+} // end of wxListBox::DoSetItemClientData
+
+bool wxListBox::HasMultipleSelection() const

 {
 {

-    // TODO
-}
+    return (m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED);
+} // end of wxListBox::HasMultipleSelection

 
 

-// Return number of selections and an array of selected integers
-int wxListBox::GetSelections(wxArrayInt& aSelections) const
+int wxListBox::GetSelections( wxArrayInt& raSelections ) const

 {
 {

-    aSelections.Empty();
+    int  nCount = 0;
+    LONG lItem;

 
 

-/* TODO
-    if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
-    {
-        int no_sel = ??
-        for ( int n = 0; n < no_sel; n++ )
-            aSelections.Add(??);

 
 

-        return no_sel;
+    raSelections.Empty();
+    if (HasMultipleSelection())
+    {
+        lItem = LONGFROMMR(::WinSendMsg( GetHwnd()
+                                        ,LM_QUERYSELECTION
+                                        ,(MPARAM)LIT_FIRST
+                                        ,(MPARAM)0
+                                       )
+                          );
+        if (lItem != LIT_NONE)
+        {
+            nCount++;
+            while ((lItem = LONGFROMMR(::WinSendMsg( GetHwnd()
+                                                    ,LM_QUERYSELECTION
+                                                    ,(MPARAM)lItem
+                                                    ,(MPARAM)0
+                                                   )
+                                      )) != LIT_NONE)
+            {
+                nCount++;
+            }
+            raSelections.Alloc(nCount);
+            lItem = LONGFROMMR(::WinSendMsg( GetHwnd()
+                                            ,LM_QUERYSELECTION
+                                            ,(MPARAM)LIT_FIRST
+                                            ,(MPARAM)0
+                                           )
+                              );
+
+            raSelections.Add((int)lItem);
+            while ((lItem = LONGFROMMR(::WinSendMsg( GetHwnd()
+                                                    ,LM_QUERYSELECTION
+                                                    ,(MPARAM)lItem
+                                                    ,(MPARAM)0
+                                                   )
+                                      )) != LIT_NONE)
+            {
+                raSelections.Add((int)lItem);
+            }
+            return nCount;
+        }

     }
     else  // single-selection listbox
     {
     }
     else  // single-selection listbox
     {

-        aSelections.Add(??);
-
+        lItem = LONGFROMMR(::WinSendMsg( GetHwnd()
+                                        ,LM_QUERYSELECTION
+                                        ,(MPARAM)LIT_FIRST
+                                        ,(MPARAM)0
+                                       )
+                          );
+        raSelections.Add((int)lItem);

         return 1;
     }
         return 1;
     }

-*/

     return 0;
     return 0;

-}
+} // end of wxListBox::GetSelections

 
 

-// Get single selection, for single choice list items

 int wxListBox::GetSelection() const
 {
 int wxListBox::GetSelection() const
 {

-    // TODO
-    return -1;
-}
-
-// Find string for position
-wxString wxListBox::GetString(int N) const
+    wxCHECK_MSG( !HasMultipleSelection(),
+                 -1,
+                 wxT("GetSelection() can't be used with multiple-selection "
+                    "listboxes, use GetSelections() instead.") );
+
+    return(LONGFROMMR(::WinSendMsg( GetHwnd()
+                                   ,LM_QUERYSELECTION
+                                   ,(MPARAM)LIT_FIRST
+                                   ,(MPARAM)0
+                                  )
+                     ));
+} // end of wxListBox::GetSelection
+
+wxString wxListBox::GetString(unsigned int n) const

 {
 {

-    // TODO
-    return wxString("");
-}
-
-void wxListBox::SetSize(int x, int y, int width, int height, int sizeFlags)
+    LONG     lLen = 0;
+    wxChar*  zBuf;
+    wxString sResult;
+
+    wxCHECK_MSG( IsValid(n), wxEmptyString,
+                 wxT("invalid index in wxListBox::GetClientData") );
+
+    lLen = LONGFROMMR(::WinSendMsg(GetHwnd(), LM_QUERYITEMTEXTLENGTH, (MPARAM)n, (MPARAM)0));
+    zBuf = new wxChar[lLen + 1];
+    ::WinSendMsg(GetHwnd(), LM_QUERYITEMTEXT, MPFROM2SHORT((SHORT)n, (SHORT)lLen), (MPARAM)zBuf);
+    zBuf[lLen] = '\0';
+    sResult = zBuf;
+    delete [] zBuf;
+    return sResult;
+} // end of wxListBox::GetString
+
+void wxListBox::SetString(unsigned int n, const wxString& rsString)

 {
 {

-    // TODO
+    wxCHECK_RET( IsValid(n),
+                 wxT("invalid index in wxListBox::SetString") );
+
+    //
+    // Remember the state of the item
+    //
+    bool           bWasSelected = IsSelected(n);
+    void*          pOldData = NULL;
+    wxClientData*  pOldObjData = NULL;
+
+    if (m_clientDataItemsType == wxClientData_Void)
+        pOldData = GetClientData(n);
+    else if (m_clientDataItemsType == wxClientData_Object)
+        pOldObjData = GetClientObject(n);
+
+    //
+    // Delete and recreate it
+    //
+    ::WinSendMsg( GetHwnd()
+                 ,LM_DELETEITEM
+                 ,(MPARAM)n
+                 ,(MPARAM)0
+                );
+
+    int nNewN = n;
+
+    if (n == (m_nNumItems - 1))
+        nNewN = -1;
+
+    ::WinSendMsg( GetHwnd()
+                 ,LM_INSERTITEM
+                 ,(MPARAM)nNewN
+                 ,(MPARAM)rsString.wx_str()
+                );
+
+    //
+    // Restore the client data
+    //
+    if (pOldData)
+        SetClientData(n, pOldData);
+    else if (pOldObjData)
+        SetClientObject(n, pOldObjData);
+
+    //
+    // We may have lost the selection
+    //
+    if (bWasSelected)
+        Select(n);
+
+#if wxUSE_OWNER_DRAWN
+    if (m_windowStyle & wxLB_OWNERDRAW)
+        //
+        // Update item's text
+        //
+        m_aItems[n]->SetName(rsString);
+#endif  //USE_OWNER_DRAWN
+} // end of wxListBox::SetString
+
+unsigned int wxListBox::GetCount() const
+{
+    return m_nNumItems;

 }
 
 }
 

-void wxListBox::InsertItems(int nItems, const wxString items[], int pos)
+// ----------------------------------------------------------------------------
+// helpers
+// ----------------------------------------------------------------------------
+
+wxSize wxListBox::DoGetBestSize() const

 {
 {

-    m_noItems += nItems;
+    //
+    // Find the widest string
+    //
+    int        nLine;
+    int        nListbox = 0;
+    int        nCx;
+    int        nCy;
+    wxFont     vFont = (wxFont)GetFont();
+
+    for (unsigned int i = 0; i < m_nNumItems; i++)
+    {
+        wxString vStr(GetString(i));

 
 

-    // TODO
-}
+        GetTextExtent( vStr, &nLine, NULL );
+        if (nLine > nListbox)
+            nListbox = nLine;
+    }

 
 

-void wxListBox::SetString(int N, const wxString& s)
+    //
+    // Give it some reasonable default value if there are no strings in the
+    // list.
+    //
+    if (nListbox == 0)
+        nListbox = 100;
+
+    //
+    // The listbox should be slightly larger than the widest string
+    //
+    wxGetCharSize( GetHWND()
+                  ,&nCx
+                  ,&nCy
+                  ,&vFont
+                 );
+    nListbox += 3 * nCx;
+
+    int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nCy) * (wxMax(m_nNumItems, 7));
+
+    return wxSize( nListbox
+                  ,hListbox
+                 );
+} // end of wxListBox::DoGetBestSize
+
+// ----------------------------------------------------------------------------
+// callbacks
+// ----------------------------------------------------------------------------
+
+bool wxListBox::OS2Command(
+  WXUINT                            uParam
+, WXWORD                            WXUNUSED(wId))

 {
 {

-    // TODO
-}
+    wxEventType                     eEvtType;

 
 

-int wxListBox::Number () const
-{
-  return m_noItems;
-}
+    if (uParam == LN_SELECT)
+    {
+        eEvtType = wxEVT_COMMAND_LISTBOX_SELECTED;
+    }
+    else if (uParam == LN_ENTER)
+    {
+        eEvtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED;
+    }
+    else
+    {
+        //
+        // Some event we're not interested in
+        //
+        return false;
+    }
+    wxCommandEvent                  vEvent( eEvtType
+                                           ,m_windowId
+                                          );

 
 

-// For single selection items only
-wxString wxListBox::GetStringSelection () const
-{
-  int sel = GetSelection ();
-  if (sel > -1)
-    return this->GetString (sel);
-  else
-    return wxString("");
-}
+    vEvent.SetEventObject(this);

 
 

-bool wxListBox::SetStringSelection (const wxString& s, bool flag)
-{
-  int sel = FindString (s);
-  if (sel > -1)
+    wxArrayInt aSelections;
+    int        n;
+    int        nCount = GetSelections(aSelections);
+
+    if (nCount > 0)

     {
     {

-      SetSelection (sel, flag);
-      return TRUE;
+        n = aSelections[0];
+        if (HasClientObjectData())
+            vEvent.SetClientObject(GetClientObject(n));
+        else if ( HasClientUntypedData() )
+            vEvent.SetClientData(GetClientData(n));
+        vEvent.SetString(GetString(n));

     }
     }

-  else
-    return FALSE;
-}
+    else
+    {
+        n = -1;
+    }
+    vEvent.SetInt(n);
+    return GetEventHandler()->ProcessEvent(vEvent);
+} // end of wxListBox::OS2Command
+
+// ----------------------------------------------------------------------------
+// wxCheckListBox support
+// ----------------------------------------------------------------------------
+
+#if wxUSE_OWNER_DRAWN

 
 

-void wxListBox::Command (wxCommandEvent & event)
+//
+// Drawing
+// -------
+//
+#define OWNER_DRAWN_LISTBOX_EXTRA_SPACE    (1)
+
+long wxListBox::OS2OnMeasure(WXMEASUREITEMSTRUCT* pItem)

 {
 {

-  if (event.m_extraLong)
-    SetSelection (event.m_commandInt);
-  else
+    if (!pItem)
+        pItem = (WXMEASUREITEMSTRUCT*)new OWNERITEM;
+
+    POWNERITEM                      pMeasureStruct = (POWNERITEM)pItem;
+    wxScreenDC                      vDc;
+
+    //
+    // Only owner-drawn control should receive this message
+    //
+    wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
+
+    vDc.SetFont(GetFont());
+
+    wxCoord                         vHeight;
+    wxCoord                         vWidth;
+
+    GetSize( &vWidth
+            ,NULL
+           );
+
+    pMeasureStruct->rclItem.xRight = (USHORT)vWidth;
+    pMeasureStruct->rclItem.xLeft  = 0;
+    pMeasureStruct->rclItem.yTop   = 0;
+    pMeasureStruct->rclItem.yBottom = 0;
+
+    vHeight = (wxCoord)(vDc.GetCharHeight() * 2.5);
+    pMeasureStruct->rclItem.yTop  = (USHORT)vHeight;
+
+    return long(MRFROM2SHORT((USHORT)vHeight, (USHORT)vWidth));
+} // end of wxListBox::OS2OnMeasure
+
+bool wxListBox::OS2OnDraw (
+  WXDRAWITEMSTRUCT*                 pItem
+)
+{
+    POWNERITEM                      pDrawStruct = (POWNERITEM)pItem;
+    LONG                            lItemID = pDrawStruct->idItem;
+    int                             eAction = 0;
+    int                             eStatus = 0;
+
+    //
+    // Only owner-drawn control should receive this message
+    //
+    wxCHECK(((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), false);
+
+
+    //
+    // The item may be -1 for an empty listbox
+    //
+    if (lItemID == -1L)
+        return false;
+
+    wxListBoxItem*                   pData = (wxListBoxItem*)PVOIDFROMMR( ::WinSendMsg( GetHwnd()
+                                                                                       ,LM_QUERYITEMHANDLE
+                                                                                       ,MPFROMLONG(pDrawStruct->idItem)
+                                                                                       ,(MPARAM)0
+                                                                                      )
+                                                                        );
+
+    wxCHECK(pData, false );
+
+    wxDC    vDc;
+    wxPoint pt1( pDrawStruct->rclItem.xLeft, pDrawStruct->rclItem.yTop );
+    wxPoint pt2( pDrawStruct->rclItem.xRight, pDrawStruct->rclItem.yBottom );
+    wxRect  vRect( pt1, pt2 );
+
+    vDc.SetHPS(pDrawStruct->hps);
+
+    if (pDrawStruct->fsAttribute == pDrawStruct->fsAttributeOld)

     {
     {

-      Deselect (event.m_commandInt);
-      return;
+        //
+        // Entire Item needs to be redrawn (either it has reappeared from
+        // behind another window or is being displayed for the first time
+        //
+        eAction = wxOwnerDrawn::wxODDrawAll;
+
+        if (pDrawStruct->fsAttribute & MIA_HILITED)
+        {
+            //
+            // If it is currently selected we let the system handle it
+            //
+            eStatus |= wxOwnerDrawn::wxODSelected;
+        }
+        if (pDrawStruct->fsAttribute & MIA_CHECKED)
+        {
+            //
+            // If it is currently checked we draw our own
+            //
+            eStatus |= wxOwnerDrawn::wxODChecked;
+            pDrawStruct->fsAttributeOld = pDrawStruct->fsAttribute &= ~MIA_CHECKED;
+        }
+        if (pDrawStruct->fsAttribute & MIA_DISABLED)
+        {
+            //
+            // If it is currently disabled we let the system handle it
+            //
+            eStatus |= wxOwnerDrawn::wxODDisabled;
+        }
+        //
+        // Don't really care about framed (indicationg focus) or NoDismiss
+        //

     }
     }

-  ProcessCommand (event);
-}
+    else
+    {
+        if (pDrawStruct->fsAttribute & MIA_HILITED)
+        {
+            eAction = wxOwnerDrawn::wxODDrawAll;
+            eStatus |= wxOwnerDrawn::wxODSelected;
+            //
+            // Keep the system from trying to highlight with its bogus colors
+            //
+            pDrawStruct->fsAttributeOld = pDrawStruct->fsAttribute &= ~MIA_HILITED;
+        }
+        else if (!(pDrawStruct->fsAttribute & MIA_HILITED))
+        {
+            eAction = wxOwnerDrawn::wxODDrawAll;
+            eStatus = 0;
+            //
+            // Keep the system from trying to highlight with its bogus colors
+            //
+            pDrawStruct->fsAttribute = pDrawStruct->fsAttributeOld &= ~MIA_HILITED;
+        }
+        else
+        {
+            //
+            // For now we don't care about anything else
+            // just ignore the entire message!
+            //
+            return true;
+        }
+    }
+    return pData->OnDrawItem( vDc
+                             ,vRect
+                             ,(wxOwnerDrawn::wxODAction)eAction
+                             ,(wxOwnerDrawn::wxODStatus)eStatus
+                            );
+} // end of wxListBox::OS2OnDraw
+
+#endif // ndef for wxUSE_OWNER_DRAWN

 
 

+#endif // wxUSE_LISTBOX