reset virtual root to NULL in DeleteAllItems()

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

diff --git a/src/msw/listbox.cpp b/src/msw/listbox.cpp
index 2dd43b3b649ac3e9b0aa0248b5f201d6d70b6c26..d74a1e4acb2c7ca3d2252146ca07414b1f648257 100644 (file)
--- a/src/msw/listbox.cpp
+++ b/src/msw/listbox.cpp
@@ -1,54 +1,89 @@
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////

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

 // Purpose:     wxListBox
 // Author:      Julian Smart
 // Modified by: Vadim Zeitlin (owner drawn stuff)
 // Purpose:     wxListBox
 // Author:      Julian Smart
 // Modified by: Vadim Zeitlin (owner drawn stuff)

-// Created:     
+// Created:

 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
 // Licence:     wxWindows license
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
 // Licence:     wxWindows license
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__

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

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

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

+#if wxUSE_LISTBOX
+

 #ifndef WX_PRECOMP
 #include "wx/listbox.h"
 #include "wx/settings.h"
 #ifndef WX_PRECOMP
 #include "wx/listbox.h"
 #include "wx/settings.h"

+#include "wx/brush.h"
+#include "wx/font.h"
+#include "wx/dc.h"
+#include "wx/utils.h"

 #endif
 
 #endif
 

+#include "wx/window.h"

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

-#include <windows.h>

 #include <windowsx.h>
 
 #include <windowsx.h>
 

-#ifdef __GNUWIN32__
-#include <wx/msw/gnuwin32/extra.h>
+#ifdef __WXWINE__
+  #if defined(GetWindowStyle)
+    #undef GetWindowStyle
+  #endif

 #endif
 
 #endif
 

-#ifdef GetCharWidth
-#undef GetCharWidth
-#endif
+#include "wx/dynarray.h"
+#include "wx/log.h"

 
 #if wxUSE_OWNER_DRAWN
 
 #if wxUSE_OWNER_DRAWN

-  #include  "wx/ownerdrw.h"
+    #include  "wx/ownerdrw.h"

 #endif
 
 #endif
 

-#include "wx/dynarray.h"
-#include "wx/log.h"
+#ifndef __TWIN32__
+    #ifdef __GNUWIN32_OLD__
+        #include "wx/msw/gnuwin32/extra.h"
+    #endif
+#endif

 
 

-#if !USE_SHARED_LIBRARY
-  IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
+#ifdef __WXWINE__
+  #ifndef ListBox_SetItemData
+    #define ListBox_SetItemData(hwndCtl, index, data) \
+      ((int)(DWORD)SendMessage((hwndCtl), LB_SETITEMDATA, (WPARAM)(int)(index), (LPARAM)(data)))
+  #endif
+  #ifndef ListBox_GetHorizontalExtent
+    #define ListBox_GetHorizontalExtent(hwndCtl) \
+      ((int)(DWORD)SendMessage((hwndCtl), LB_GETHORIZONTALEXTENT, 0L, 0L))
+  #endif
+  #ifndef ListBox_GetSelCount
+    #define ListBox_GetSelCount(hwndCtl) \
+      ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELCOUNT, 0L, 0L))
+  #endif
+  #ifndef ListBox_GetSelItems
+    #define ListBox_GetSelItems(hwndCtl, cItems, lpItems) \
+      ((int)(DWORD)SendMessage((hwndCtl), LB_GETSELITEMS, (WPARAM)(int)(cItems), (LPARAM)(int *)(lpItems)))
+  #endif
+  #ifndef ListBox_GetTextLen
+    #define ListBox_GetTextLen(hwndCtl, index) \
+      ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXTLEN, (WPARAM)(int)(index), 0L))
+  #endif
+  #ifndef ListBox_GetText
+    #define ListBox_GetText(hwndCtl, index, lpszBuffer) \
+      ((int)(DWORD)SendMessage((hwndCtl), LB_GETTEXT, (WPARAM)(int)(index), (LPARAM)(LPCTSTR)(lpszBuffer)))
+  #endif

 #endif
 
 #endif
 

+    IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
+

 // ============================================================================
 // list box item declaration and implementation
 // ============================================================================
 // ============================================================================
 // list box item declaration and implementation
 // ============================================================================


@@ -58,18 +93,18 @@
 class wxListBoxItem : public wxOwnerDrawn
 {
 public:
 class wxListBoxItem : public wxOwnerDrawn
 {
 public:

-  wxListBoxItem(const wxString& str = "");
+    wxListBoxItem(const wxString& str = wxEmptyString);

 };
 
 };
 

-wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE) 
+wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)

 {
 {

-  // no bitmaps/checkmarks
-  SetMarginWidth(0);
+    // no bitmaps/checkmarks
+    SetMarginWidth(0);

 }
 
 }
 

-wxOwnerDrawn *wxListBox::CreateItem(size_t n)
+wxOwnerDrawn *wxListBox::CreateLboxItem(size_t WXUNUSED(n))

 {
 {

-  return new wxListBoxItem();
+    return new wxListBoxItem();

 }
 
 #endif  //USE_OWNER_DRAWN
 }
 
 #endif  //USE_OWNER_DRAWN


@@ -78,70 +113,19 @@ wxOwnerDrawn *wxListBox::CreateItem(size_t n)
 // list box control implementation
 // ============================================================================
 
 // list box control implementation
 // ============================================================================
 

-// this macro is dangerous but still better than tons of (HWND)GetHWND()
-#define   hwnd    (HWND)GetHWND()
-
-bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
-{
-/*
-  if (param == LBN_SELCANCEL)
-  {
-    event.extraLong = FALSE;
-  }
-*/
-  if (param == LBN_SELCHANGE)
-  {
-    wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
-    wxArrayInt aSelections;
-    int count = GetSelections(aSelections);
-    if ( count > 0 )
-    {
-      event.m_commandInt = aSelections[0] ;
-      event.m_clientData = GetClientData(event.m_commandInt);
-      wxString str(GetString(event.m_commandInt));
-      if (str != "")
-        event.m_commandString = copystring((char *)(const char *)str);
-    }
-    else
-    {
-      event.m_commandInt = -1 ;
-      event.m_commandString = copystring("") ;
-    }
-
-    event.SetEventObject( this );
-    ProcessCommand(event);
-    if (event.m_commandString)
-      delete[] event.m_commandString ;
-    return TRUE;
-  }
-  else if (param == LBN_DBLCLK)
-  {
-    wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
-    event.SetEventObject( this );
-    GetEventHandler()->ProcessEvent(event) ;
-    return TRUE;
-/*
-    {
-#if WXWIN_COMPATIBILITY
-      wxWindow *parent = (wxWindow *)GetParent();
-      if (parent)
-        parent->GetEventHandler()->OnDefaultAction(this);
-#endif
-      return TRUE;
-    }
- */
-  }
-  return FALSE;
-}
+// ----------------------------------------------------------------------------
+// creation
+// ----------------------------------------------------------------------------

 
 // Listbox item
 
 // Listbox item

-wxListBox::wxListBox(void)
+wxListBox::wxListBox()

 {
 {

-  m_noItems = 0;
-  m_selected = 0;
+    m_noItems = 0;
+    m_selected = 0;

 }
 
 }
 

-bool wxListBox::Create(wxWindow *parent, wxWindowID id,
+bool wxListBox::Create(wxWindow *parent,
+                       wxWindowID id,

                        const wxPoint& pos,
                        const wxSize& size,
                        int n, const wxString choices[],
                        const wxPoint& pos,
                        const wxSize& size,
                        int n, const wxString choices[],


@@ -149,619 +133,602 @@ bool wxListBox::Create(wxWindow *parent, wxWindowID id,
                        const wxValidator& validator,
                        const wxString& name)
 {
                        const wxValidator& validator,
                        const wxString& name)
 {

-  m_noItems = n;
-  m_hWnd = 0;
-  m_selected = 0;
+    m_noItems = 0;
+    m_hWnd = 0;
+    m_selected = 0;

 
 

-  SetName(name);
-  SetValidator(validator);
+    SetName(name);
+#if wxUSE_VALIDATORS
+    SetValidator(validator);
+#endif // wxUSE_VALIDATORS

 
 

-  if (parent) parent->AddChild(this);
+    if (parent)
+        parent->AddChild(this);

 
 

-  wxSystemSettings settings;
-  SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW));
-  SetForegroundColour(parent->GetForegroundColour());
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
+    SetForegroundColour(parent->GetForegroundColour());

 
 

-  m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
+    m_windowId = ( id == -1 ) ? (int)NewControlId() : id;

 
 

-  int x = pos.x;
-  int y = pos.y;
-  int width = size.x;
-  int height = size.y;
-  m_windowStyle = style;
+    int x = pos.x;
+    int y = pos.y;
+    int width = size.x;
+    int height = size.y;
+    m_windowStyle = style;

 
 

-  DWORD wstyle = WS_VSCROLL | WS_TABSTOP | LBS_NOTIFY | LBS_HASSTRINGS;
-  if (m_windowStyle & wxLB_MULTIPLE)
-    wstyle |= LBS_MULTIPLESEL;
-  else if (m_windowStyle & wxLB_EXTENDED)
-    wstyle |= LBS_EXTENDEDSEL;
+    DWORD wstyle = WS_VISIBLE | WS_VSCROLL | WS_TABSTOP |
+                   LBS_NOTIFY | LBS_HASSTRINGS /* | WS_CLIPSIBLINGS */;

 
 

-  if (m_windowStyle & wxLB_ALWAYS_SB)
-    wstyle |= LBS_DISABLENOSCROLL ;
-  if (m_windowStyle & wxLB_HSCROLL)
-    wstyle |= WS_HSCROLL;
-  if (m_windowStyle & wxLB_SORT)
-    wstyle |= LBS_SORT;
+    wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED),
+                  _T("only one of listbox selection modes can be specified") );
+    if ( m_windowStyle & wxCLIP_SIBLINGS )
+        wstyle |= WS_CLIPSIBLINGS;
+
+    if (m_windowStyle & wxLB_MULTIPLE)
+        wstyle |= LBS_MULTIPLESEL;
+    else if (m_windowStyle & wxLB_EXTENDED)
+        wstyle |= LBS_EXTENDEDSEL;
+
+    if (m_windowStyle & wxLB_ALWAYS_SB)
+        wstyle |= LBS_DISABLENOSCROLL;
+    if (m_windowStyle & wxLB_HSCROLL)
+        wstyle |= WS_HSCROLL;
+    if (m_windowStyle & wxLB_SORT)
+        wstyle |= LBS_SORT;

 
 #if wxUSE_OWNER_DRAWN
     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 
 #if wxUSE_OWNER_DRAWN
     if ( m_windowStyle & wxLB_OWNERDRAW ) {

-      // we don't support LBS_OWNERDRAWVARIABLE yet
-      wstyle |= LBS_OWNERDRAWFIXED;
+        // we don't support LBS_OWNERDRAWVARIABLE yet
+        wstyle |= LBS_OWNERDRAWFIXED;

     }
 #endif
     }
 #endif

-  // Without this style, you get unexpected heights, so e.g. constraint layout
-  // doesn't work properly
-  wstyle |= LBS_NOINTEGRALHEIGHT;
-
-  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) )
-  {
-    wstyle |= WS_BORDER;
-  }
-
-  m_hWnd = (WXHWND)::CreateWindowEx(exStyle, "LISTBOX", NULL,
-                                wstyle | WS_CHILD,
-                                0, 0, 0, 0, 
-                                (HWND)parent->GetHWND(), (HMENU)m_windowId,
-                                wxGetInstance(), NULL);
-
-  wxCHECK_MSG( m_hWnd, FALSE, "Failed to create listbox" );
-
-#if CTL3D
-  if (want3D)
-  {
-    Ctl3dSubclassCtl(hwnd);
-    m_useCtl3D = TRUE;
-  }
-#endif

 
 

-  // Subclass again to catch messages
-  SubclassWin(m_hWnd);
+    // Without this style, you get unexpected heights, so e.g. constraint layout
+    // doesn't work properly
+    wstyle |= LBS_NOINTEGRALHEIGHT;

 
 

-  size_t ui;
-  for (ui = 0; ui < (size_t)n; ui++) {
-    Append(choices[ui]);
-  }
+    bool want3D;
+    WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);

 
 

-#if wxUSE_OWNER_DRAWN
-    if ( m_windowStyle & wxLB_OWNERDRAW ) {
-      for (ui = 0; ui < (size_t)n; ui++) {
-        // create new item which will process WM_{DRAW|MEASURE}ITEM messages
-        wxOwnerDrawn *pNewItem = CreateItem(ui);
-        pNewItem->SetName(choices[ui]);
-        m_aItems.Add(pNewItem);
-        ListBox_SetItemData(hwnd, ui, pNewItem);
-      }
+    // Even with extended styles, need to combine with WS_BORDER for them to
+    // look right.
+    if ( want3D || wxStyleHasBorder(m_windowStyle) )
+    {
+        wstyle |= WS_BORDER;
+    }
+
+    m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("LISTBOX"), NULL,
+            wstyle | WS_CHILD,
+            0, 0, 0, 0,
+            (HWND)parent->GetHWND(), (HMENU)m_windowId,
+            wxGetInstance(), NULL);
+
+    wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create listbox") );
+
+#if wxUSE_CTL3D
+    if (want3D)
+    {
+        Ctl3dSubclassCtl(GetHwnd());
+        m_useCtl3D = TRUE;

     }
 #endif
 
     }
 #endif
 

-  if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
-    SendMessage(hwnd, LB_SETCURSEL, 0, 0);
+    // Subclass again to catch messages
+    SubclassWin(m_hWnd);

 
 

-  SetFont(* parent->GetFont());
+    size_t ui;
+    for (ui = 0; ui < (size_t)n; ui++) {
+        Append(choices[ui]);
+    }

 
 

-  SetSize(x, y, width, height);
+    if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
+        SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0);

 
 

-  Show(TRUE);
+    SetFont(parent->GetFont());

 
 

-  return TRUE;
-}
+    SetSize(x, y, width, height);

 
 

-wxListBox::~wxListBox(void)
-{
-#if wxUSE_OWNER_DRAWN
-    size_t uiCount = m_aItems.Count();
-    while ( uiCount-- != 0 ) {
-      delete m_aItems[uiCount];
-    }
-#endif
+    return TRUE;

 }
 
 }
 

-void wxListBox::SetupColours(void)
+wxListBox::~wxListBox()

 {
 {

-  SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
-  SetForegroundColour(GetParent()->GetForegroundColour());
+    Free();

 }
 
 }
 

-void wxListBox::SetFirstItem(int N)
+void wxListBox::SetupColours()

 {
 {

-  SendMessage(hwnd,LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ;
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
+    SetForegroundColour(GetParent()->GetForegroundColour());

 }
 
 }
 

-void wxListBox::SetFirstItem(const wxString& s)
+// ----------------------------------------------------------------------------
+// implementation of wxListBoxBase methods
+// ----------------------------------------------------------------------------
+
+void wxListBox::DoSetFirstItem(int N)

 {
 {

-  int N = FindString(s) ;
+    wxCHECK_RET( N >= 0 && N < m_noItems,
+                 wxT("invalid index in wxListBox::SetFirstItem") );

 
 

-  if (N>=0)
-    SetFirstItem(N) ;
+    SendMessage(GetHwnd(), LB_SETTOPINDEX, (WPARAM)N, (LPARAM)0);

 }
 
 void wxListBox::Delete(int N)
 {
 }
 
 void wxListBox::Delete(int N)
 {

-  SendMessage(hwnd, LB_DELETESTRING, N, 0);
-  m_noItems --;
-  SetHorizontalExtent("");
-}
+    wxCHECK_RET( N >= 0 && N < m_noItems,
+                 wxT("invalid index in wxListBox::Delete") );

 
 

-void wxListBox::Append(const wxString& item)
-{
-  int index = ListBox_AddString(hwnd, item);
-  m_noItems ++;
+    // for owner drawn objects, the data is used for storing wxOwnerDrawn
+    // pointers and we shouldn't touch it
+#if !wxUSE_OWNER_DRAWN
+    if ( !(m_windowStyle & wxLB_OWNERDRAW) )
+#endif // !wxUSE_OWNER_DRAWN
+        if ( HasClientObjectData() )
+        {
+            delete GetClientObject(N);
+        }

 
 

-#if wxUSE_OWNER_DRAWN
-    if ( m_windowStyle & wxLB_OWNERDRAW ) {
-      wxOwnerDrawn *pNewItem = CreateItem(-1); // dummy argument
-      pNewItem->SetName(item);
-      m_aItems.Add(pNewItem);
-      ListBox_SetItemData(hwnd, index, pNewItem);
-    }
-#endif
+    SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
+    m_noItems--;

 
 

-  SetHorizontalExtent(item);
+    SetHorizontalExtent(wxEmptyString);

 }
 
 }
 

-void wxListBox::Append(const wxString& item, char *Client_data)
+int wxListBox::DoAppend(const wxString& item)

 {
 {

-  int index = ListBox_AddString(hwnd, item);
-  m_noItems ++;
+    int index = ListBox_AddString(GetHwnd(), item);
+    m_noItems++;

 
 #if wxUSE_OWNER_DRAWN
     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 
 #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("Can't use client data with owner-drawn listboxes");
+        wxOwnerDrawn *pNewItem = CreateLboxItem(index); // dummy argument
+        pNewItem->SetName(item);
+        m_aItems.Insert(pNewItem, index);
+        ListBox_SetItemData(GetHwnd(), index, pNewItem);
+        pNewItem->SetFont(GetFont());

     }
     }

-    else
-#endif
-      ListBox_SetItemData(hwnd, index, Client_data);
+#endif // wxUSE_OWNER_DRAWN
+
+    SetHorizontalExtent(item);

 
 

-  SetHorizontalExtent(item);
+    return index;

 }
 
 }
 

-void wxListBox::Set(int n, const wxString *choices, char** clientData)
+void wxListBox::DoSetItems(const wxArrayString& choices, void** clientData)

 {
 {

-  ShowWindow(hwnd, SW_HIDE);
-  ListBox_ResetContent(hwnd);
-  int i;
-  for (i = 0; i < n; i++)
-  {
-    ListBox_AddString(hwnd, choices[i]);
-    if ( clientData )
-      ListBox_SetItemData(hwnd, i, clientData[i]);
-  }
-  m_noItems = n;
+    // avoid flicker - but don't need to do this for a hidden listbox
+    bool hideAndShow = IsShown();
+    if ( hideAndShow )
+    {
+        ShowWindow(GetHwnd(), SW_HIDE);
+    }
+
+    ListBox_ResetContent(GetHwnd());
+
+    m_noItems = choices.GetCount();
+    int i;
+    for (i = 0; i < m_noItems; i++)
+    {
+        ListBox_AddString(GetHwnd(), choices[i]);
+        if ( clientData )
+        {
+            SetClientData(i, clientData[i]);
+        }
+    }

 
 #if wxUSE_OWNER_DRAWN
     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 
 #if wxUSE_OWNER_DRAWN
     if ( m_windowStyle & wxLB_OWNERDRAW ) {

-      // first delete old items
-      size_t ui = m_aItems.Count();
-      while ( ui-- != 0 ) {
-        delete m_aItems[ui];
-      }
-      m_aItems.Empty();
-
-      // then create new ones
-      for (ui = 0; ui < (size_t)n; ui++) {
-        wxOwnerDrawn *pNewItem = CreateItem(ui);
-        pNewItem->SetName(choices[ui]);
-        m_aItems.Add(pNewItem);
-        ListBox_SetItemData(hwnd, ui, pNewItem);
-
-        wxASSERT_MSG(clientData[ui] == NULL,
-                     "Can't use client data with owner-drawn listboxes");
-      }
+        // first delete old items
+        WX_CLEAR_ARRAY(m_aItems);
+
+        // then create new ones
+        for ( size_t ui = 0; ui < (size_t)m_noItems; ui++ ) {
+            wxOwnerDrawn *pNewItem = CreateLboxItem(ui);
+            pNewItem->SetName(choices[ui]);
+            m_aItems.Add(pNewItem);
+            ListBox_SetItemData(GetHwnd(), ui, pNewItem);
+        }

     }
     }

-#endif
+#endif // wxUSE_OWNER_DRAWN

 
 

-  SetHorizontalExtent("");
-  ShowWindow(hwnd, SW_SHOW);
+    SetHorizontalExtent();
+
+    if ( hideAndShow )
+    {
+        // show the listbox back if we hid it
+        ShowWindow(GetHwnd(), SW_SHOW);
+    }

 }
 
 int wxListBox::FindString(const wxString& s) const
 {
 }
 
 int wxListBox::FindString(const wxString& s) const
 {

- int pos = ListBox_FindStringExact(hwnd, (WPARAM)-1, s);
- if (pos == LB_ERR)
-   return -1;
- else
-   return pos;
+    int pos = ListBox_FindStringExact(GetHwnd(), (WPARAM)-1, s);
+    if (pos == LB_ERR)
+        return wxNOT_FOUND;
+    else
+        return pos;

 }
 
 }
 

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

 {
 {

-  ListBox_ResetContent(hwnd);
+    Free();
+
+    ListBox_ResetContent(GetHwnd());

 
 

-  m_noItems = 0;
-  ListBox_GetHorizontalExtent(hwnd);
+    m_noItems = 0;
+    SetHorizontalExtent();
+}
+
+void wxListBox::Free()
+{
+#if wxUSE_OWNER_DRAWN
+    if ( m_windowStyle & wxLB_OWNERDRAW )
+    {
+        WX_CLEAR_ARRAY(m_aItems);
+    }
+    else
+#endif // wxUSE_OWNER_DRAWN
+    if ( HasClientObjectData() )
+    {
+        for ( size_t n = 0; n < (size_t)m_noItems; n++ )
+        {
+            delete GetClientObject(n);
+        }
+    }

 }
 
 void wxListBox::SetSelection(int N, bool select)
 {
 }
 
 void wxListBox::SetSelection(int N, bool select)
 {

-  if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
-    SendMessage(hwnd, LB_SETSEL, select, N);
-  else
-  {
-    int N1 = N;
-    if (!select)
-        N1 = -1;
-    SendMessage(hwnd, LB_SETCURSEL, N1, 0);
-  }
+    wxCHECK_RET( N >= 0 && N < m_noItems,
+                 wxT("invalid index in wxListBox::SetSelection") );
+
+    if ( HasMultipleSelection() )
+    {
+        SendMessage(GetHwnd(), LB_SETSEL, select, N);
+    }
+    else
+    {
+        SendMessage(GetHwnd(), LB_SETCURSEL, select ? N : -1, 0);
+    }
+}
+
+bool wxListBox::IsSelected(int N) const
+{
+    wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE,
+                 wxT("invalid index in wxListBox::Selected") );
+
+    return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? FALSE : TRUE;

 }
 
 }
 

-bool wxListBox::Selected(int N) const
+wxClientData* wxListBox::DoGetItemClientObject(int n) const

 {
 {

-  return SendMessage(hwnd, LB_GETSEL, N, 0) == 0 ? FALSE : TRUE;
+    return (wxClientData *)DoGetItemClientData(n);

 }
 
 }
 

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

 {
 {

-  if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
-    SendMessage(hwnd, LB_SETSEL, FALSE, N);
+    wxCHECK_MSG( n >= 0 && n < m_noItems, NULL,
+                 wxT("invalid index in wxListBox::GetClientData") );
+
+    return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0);

 }
 
 }
 

-char *wxListBox::GetClientData(int N) const
+void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData)

 {
 {

-  return (char *)SendMessage(hwnd, LB_GETITEMDATA, N, 0);
+    DoSetItemClientData(n, clientData);

 }
 
 }
 

-void wxListBox::SetClientData(int N, char *Client_data)
+void wxListBox::DoSetItemClientData(int n, void *clientData)

 {
 {

-  if ( ListBox_SetItemData(hwnd, N, Client_data) == LB_ERR )
-    wxLogDebug("LB_SETITEMDATA failed");
+    wxCHECK_RET( n >= 0 && n < m_noItems,
+                 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
+
+    if ( ListBox_SetItemData(GetHwnd(), n, clientData) == LB_ERR )
+        wxLogDebug(wxT("LB_SETITEMDATA failed"));

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

-  aSelections.Empty();
-
-  if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
-  {
-    int no_sel = ListBox_GetSelCount(hwnd);
-    if (no_sel != 0) {
-      int *selections = new int[no_sel];
-      if ( ListBox_GetSelItems(hwnd, no_sel, selections) == LB_ERR ) {
-        wxFAIL_MSG("This listbox can't have single-selection style!");
-      }
-
-      aSelections.Alloc(no_sel);
-      for ( int n = 0; n < no_sel; n++ )
-        aSelections.Add(selections[n]);
-
-      delete [] selections;
-    }
+    aSelections.Empty();

 
 

-    return no_sel;
-  }
-  else  // single-selection listbox
-  {
-    aSelections.Add(ListBox_GetCurSel(hwnd));
+    if ( HasMultipleSelection() )
+    {
+        int countSel = ListBox_GetSelCount(GetHwnd());
+        if ( countSel == LB_ERR )
+        {
+            wxLogDebug(_T("ListBox_GetSelCount failed"));
+        }
+        else if ( countSel != 0 )
+        {
+            int *selections = new int[countSel];
+
+            if ( ListBox_GetSelItems(GetHwnd(),
+                                     countSel, selections) == LB_ERR )
+            {
+                wxLogDebug(wxT("ListBox_GetSelItems failed"));
+                countSel = -1;
+            }
+            else
+            {
+                aSelections.Alloc(countSel);
+                for ( int n = 0; n < countSel; n++ )
+                    aSelections.Add(selections[n]);
+            }
+
+            delete [] selections;
+        }
+
+        return countSel;
+    }
+    else  // single-selection listbox
+    {
+        if (ListBox_GetCurSel(GetHwnd()) > -1)
+            aSelections.Add(ListBox_GetCurSel(GetHwnd()));

 
 

-    return 1;
-  }
+        return aSelections.Count();
+    }

 }
 
 // Get single selection, for single choice list items
 int wxListBox::GetSelection() const
 {
 }
 
 // Get single selection, for single choice list items
 int wxListBox::GetSelection() const
 {

-  wxCHECK_MSG( !(m_windowStyle & wxLB_MULTIPLE) && 
-               !(m_windowStyle & wxLB_EXTENDED), 
-               -1,
-               "GetSelection() can't be used with multiple-selection "
-               "listboxes, use GetSelections() instead." );
+    wxCHECK_MSG( !HasMultipleSelection(),
+                 -1,
+                 wxT("GetSelection() can't be used with multiple-selection listboxes, use GetSelections() instead.") );

 
 

-  return ListBox_GetCurSel(hwnd);
+    return ListBox_GetCurSel(GetHwnd());

 }
 
 // Find string for position
 wxString wxListBox::GetString(int N) const
 {
 }
 
 // Find string for position
 wxString wxListBox::GetString(int N) const
 {

-  if (N < 0 || N > m_noItems)
-    return wxString("");
-    
-  int len = (int)SendMessage(hwnd, LB_GETTEXT, N, (LONG)wxBuffer);
-  wxBuffer[len] = 0;
-  return wxString(wxBuffer);
-}
+    wxCHECK_MSG( N >= 0 && N < m_noItems, wxEmptyString,
+                 wxT("invalid index in wxListBox::GetClientData") );

 
 

-void wxListBox::SetSize(int x, int y, int width, int height, int sizeFlags)
-{
-  int currentX, currentY;
-  GetPosition(&currentX, &currentY);
+    int len = ListBox_GetTextLen(GetHwnd(), N);

 
 

-  int x1 = x;
-  int y1 = y;
-  int w1 = width;
-  int h1 = height;
+    // +1 for terminating NUL
+    wxString result;
+    ListBox_GetText(GetHwnd(), N, result.GetWriteBuf(len + 1));
+    result.UngetWriteBuf();

 
 

-  if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
-    x1 = currentX;
-  if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
-    y1 = currentY;
-
-  AdjustForParentClientOrigin(x1, y1, sizeFlags);
+    return result;
+}

 
 

-  // If we're prepared to use the existing size, then...
-  if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO))
-  {
-    GetSize(&w1, &h1);
-  }
+void
+wxListBox::DoInsertItems(const wxArrayString& items, int pos)
+{
+    wxCHECK_RET( pos >= 0 && pos <= m_noItems,
+                 wxT("invalid index in wxListBox::InsertItems") );

 
 

-  int cx; // button font dimensions
-  int cy;
+    int nItems = items.GetCount();
+    for ( int i = 0; i < nItems; i++ )
+    {
+        int idx = ListBox_InsertString(GetHwnd(), i + pos, items[i]);

 
 

-  wxGetCharSize(GetHWND(), &cx, &cy,GetFont());
+#if wxUSE_OWNER_DRAWN
+        if ( m_windowStyle & wxLB_OWNERDRAW )
+        {
+            wxOwnerDrawn *pNewItem = CreateLboxItem(idx);
+            pNewItem->SetName(items[i]);
+            pNewItem->SetFont(GetFont());
+            m_aItems.Insert(pNewItem, idx);
+
+            ListBox_SetItemData(GetHwnd(), idx, pNewItem);
+        }
+#endif // wxUSE_OWNER_DRAWN
+    }

 
 

-  float control_width, control_height, control_x, control_y;
+    m_noItems += nItems;

 
 

-  // Deal with default size (using -1 values)
-  if (w1<=0)
-    w1 = DEFAULT_ITEM_WIDTH;
+    SetHorizontalExtent();
+}

 
 

-  if (h1<=0)
-    h1 = DEFAULT_ITEM_HEIGHT;
+void wxListBox::SetString(int N, const wxString& s)
+{
+    wxCHECK_RET( N >= 0 && N < m_noItems,
+                 wxT("invalid index in wxListBox::SetString") );

 
 

-  control_x = (float)x1;
-  control_y = (float)y1;
-  control_width = (float)w1;
-  control_height = (float)h1;
+    // remember the state of the item
+    bool wasSelected = IsSelected(N);

 
 

-  // Calculations may have made size too small
-  if (control_height <= 0)
-    control_height = (float)DEFAULT_ITEM_HEIGHT;
+    void *oldData = NULL;
+    wxClientData *oldObjData = NULL;
+    if ( m_clientDataItemsType == wxClientData_Void )
+        oldData = GetClientData(N);
+    else if ( m_clientDataItemsType == wxClientData_Object )
+        oldObjData = GetClientObject(N);

 
 

-  if (control_width <= 0)
-    control_width = (float)DEFAULT_ITEM_WIDTH;
+    // delete and recreate it
+    SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);

 
 

-//  wxDebugMsg("About to set the listbox height to %d", (int)control_height);
-  MoveWindow(hwnd, (int)control_x, (int)control_y,
-                   (int)control_width, (int)control_height, TRUE);
+    int newN = N;
+    if ( N == m_noItems - 1 )
+        newN = -1;

 
 

-}
+    ListBox_InsertString(GetHwnd(), newN, s);

 
 

-// Windows-specific code to set the horizontal extent of
-// the listbox, if necessary. If s is non-NULL, it's
-// used to calculate the horizontal extent.
-// Otherwise, all strings are used.
-void wxListBox::SetHorizontalExtent(const wxString& s)
-{
-  // Only necessary if we want a horizontal scrollbar
-  if (!(m_windowStyle & wxHSCROLL))
-    return;
-  TEXTMETRIC lpTextMetric;
-
-  if (s != "")
-  {
-    int existingExtent = (int)SendMessage(hwnd, LB_GETHORIZONTALEXTENT, 0, 0L);
-    HDC dc = GetWindowDC(hwnd);
-    HFONT oldFont = 0;
-    if (GetFont() && GetFont()->GetResourceHandle())
-      oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont()->GetResourceHandle());
-
-    GetTextMetrics(dc, &lpTextMetric);
-    SIZE extentXY;
-    ::GetTextExtentPoint(dc, (LPSTR) (const char *)s, s.Length(), &extentXY);
-    int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
-    
-    if (oldFont)
-      ::SelectObject(dc, oldFont);
-
-    ReleaseDC(hwnd, dc);
-    if (extentX > existingExtent)
-      SendMessage(hwnd, LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L);
-    return;
-  }
-  else
-  {
-    int largestExtent = 0;
-    HDC dc = GetWindowDC(hwnd);
-    HFONT oldFont = 0;
-    if (GetFont() && GetFont()->GetResourceHandle())
-      oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont()->GetResourceHandle());
-
-    GetTextMetrics(dc, &lpTextMetric);
-    int i;
-    for (i = 0; i < m_noItems; i++)
-    {
-      int len = (int)SendMessage(hwnd, LB_GETTEXT, i, (LONG)wxBuffer);
-      wxBuffer[len] = 0;
-      SIZE extentXY;
-      ::GetTextExtentPoint(dc, (LPSTR)wxBuffer, len, &extentXY);
-      int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
-      if (extentX > largestExtent)
-        largestExtent = extentX;
-    }
-    if (oldFont)
-      ::SelectObject(dc, oldFont);
+    // restore the client data
+    if ( oldData )
+        SetClientData(N, oldData);
+    else if ( oldObjData )
+        SetClientObject(N, oldObjData);

 
 

-    ReleaseDC(hwnd, dc);
-    SendMessage(hwnd, LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
-  }
-}
+    // we may have lost the selection
+    if ( wasSelected )
+        Select(N);

 
 

-void
-wxListBox::InsertItems(int nItems, const wxString items[], int pos)
-{
-  int i;
-  for (i = 0; i < nItems; i++)
-    ListBox_InsertString(hwnd, i + pos, items[i]);
-  m_noItems += nItems;
+#if wxUSE_OWNER_DRAWN
+    if ( m_windowStyle & wxLB_OWNERDRAW )
+    {
+        // update item's text
+        m_aItems[N]->SetName(s);

 
 

-  #if wxUSE_OWNER_DRAWN
-    if ( m_windowStyle & wxLB_OWNERDRAW ) {
-      for ( i = 0; i < nItems; i++ ) {
-        wxOwnerDrawn *pNewItem = CreateItem((size_t)(pos + i));
-        pNewItem->SetName(items[i]);
-        m_aItems.Insert(pNewItem, (size_t)(pos + i));
-        ListBox_SetItemData(hwnd, i, pNewItem);
-      }
+        // reassign the item's data
+        ListBox_SetItemData(GetHwnd(), N, m_aItems[N]);

     }
     }

-  #endif
-
-  SetHorizontalExtent("");
-}
-
-void wxListBox::SetString(int N, const wxString& s)
-{
-  int sel = -1;
-  if (!(m_windowStyle & wxLB_MULTIPLE) && !(m_windowStyle & wxLB_EXTENDED))
-    sel = GetSelection();
-  
-  char *oldData = (char *)wxListBox::GetClientData(N);
-  
-  SendMessage(hwnd, LB_DELETESTRING, N, 0);
-
-  int newN = N;
-  if (N == (m_noItems - 1))
-    newN = -1;
-    
-  SendMessage(hwnd, LB_INSERTSTRING, newN, (LPARAM) (const char *)s);
-  if (oldData)
-    wxListBox::SetClientData(N, oldData);
-
-  // Selection may have changed
-  if (sel >= 0)
-    SetSelection(sel);
-
-#if       wxUSE_OWNER_DRAWN
-  if ( m_windowStyle & wxLB_OWNERDRAW )
-         // update item's text
-         m_aItems[N]->SetName(s);

 #endif  //USE_OWNER_DRAWN
 }
 
 #endif  //USE_OWNER_DRAWN
 }
 

-int wxListBox::Number (void) const
+int wxListBox::GetCount() const

 {
 {

-  return m_noItems;
+    return m_noItems;

 }
 
 }
 

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

 
 

-bool wxListBox::SetStringSelection (const wxString& s, bool flag)
+// Windows-specific code to set the horizontal extent of the listbox, if
+// necessary. If s is non-NULL, it's used to calculate the horizontal extent.
+// Otherwise, all strings are used.
+void wxListBox::SetHorizontalExtent(const wxString& s)

 {
 {

-  int sel = FindString (s);
-  if (sel > -1)
+    // Only necessary if we want a horizontal scrollbar
+    if (!(m_windowStyle & wxHSCROLL))
+        return;
+    TEXTMETRIC lpTextMetric;
+
+    if ( !s.IsEmpty() )
+    {
+        int existingExtent = (int)SendMessage(GetHwnd(), LB_GETHORIZONTALEXTENT, 0, 0L);
+        HDC dc = GetWindowDC(GetHwnd());
+        HFONT oldFont = 0;
+        if (GetFont().Ok() && GetFont().GetResourceHandle())
+            oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
+
+        GetTextMetrics(dc, &lpTextMetric);
+        SIZE extentXY;
+        ::GetTextExtentPoint(dc, (LPTSTR) (const wxChar *)s, s.Length(), &extentXY);
+        int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
+
+        if (oldFont)
+            ::SelectObject(dc, oldFont);
+
+        ReleaseDC(GetHwnd(), dc);
+        if (extentX > existingExtent)
+            SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L);
+    }
+    else

     {
     {

-      SetSelection (sel, flag);
-      return TRUE;
+        int largestExtent = 0;
+        HDC dc = GetWindowDC(GetHwnd());
+        HFONT oldFont = 0;
+        if (GetFont().Ok() && GetFont().GetResourceHandle())
+            oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
+
+        GetTextMetrics(dc, &lpTextMetric);
+        int i;
+        for (i = 0; i < m_noItems; i++)
+        {
+            int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer);
+            wxBuffer[len] = 0;
+            SIZE extentXY;
+            ::GetTextExtentPoint(dc, (LPTSTR)wxBuffer, len, &extentXY);
+            int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
+            if (extentX > largestExtent)
+                largestExtent = extentX;
+        }
+        if (oldFont)
+            ::SelectObject(dc, oldFont);
+
+        ReleaseDC(GetHwnd(), dc);
+        SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);

     }
     }

-  else
-    return FALSE;

 }
 
 }
 

-// Is this the right thing? Won't setselection generate a command
-// event too? No! It'll just generate a setselection event.
-// But we still can't have this being called whenever a real command
-// is generated, because it sets the selection, which will already
-// have been done! (Unless we have an optional argument for calling
-// by the actual window system, or a separate function, ProcessCommand)
-void wxListBox::Command (wxCommandEvent & event)
+wxSize wxListBox::DoGetBestSize() const

 {
 {

-  if (event.m_extraLong)
-    SetSelection (event.m_commandInt);
-  else
+    // find the widest string
+    int wLine;
+    int wListbox = 0;
+    for ( int i = 0; i < m_noItems; i++ )

     {
     {

-      Deselect (event.m_commandInt);
-      return;
+        wxString str(GetString(i));
+        GetTextExtent(str, &wLine, NULL);
+        if ( wLine > wListbox )
+            wListbox = wLine;

     }
     }

-  ProcessCommand (event);
-}

 
 

-WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
-                       WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
-{
-#if CTL3D
-  if ( m_useCtl3D )
-  {
-    HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
-    return (WXHBRUSH) hbrush;
-  }
-#endif
+    // give it some reasonable default value if there are no strings in the
+    // list
+    if ( wListbox == 0 )
+        wListbox = 100;

 
 

-  if (GetParent()->GetTransparentBackground())
-    SetBkMode((HDC) pDC, TRANSPARENT);
-  else
-    SetBkMode((HDC) pDC, OPAQUE);
+    // the listbox should be slightly larger than the widest string
+    int cx, cy;
+    wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());

 
 

-  ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
-  ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
+    wListbox += 3*cx;

 
 

-  wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
+    // don't make the listbox too tall (limit height to 10 items) but don't
+    // make it too small neither
+    int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*
+                    wxMin(wxMax(m_noItems, 3), 10);

 
 

-  // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
-  // has a zero usage count.
-  backgroundBrush->RealizeResource();
-  return (WXHBRUSH) backgroundBrush->GetResourceHandle();
+    return wxSize(wListbox, hListbox);

 }
 
 }
 

-long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+// ----------------------------------------------------------------------------
+// callbacks
+// ----------------------------------------------------------------------------
+
+bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))

 {
 {

-#if 0
-  switch (nMsg)
-  {
-        case WM_INITDIALOG:
-        case WM_ACTIVATE:
-        case WM_SETFOCUS:
-        case WM_KILLFOCUS:
-       case WM_CREATE:
-       case WM_PAINT:
-       case WM_QUERYDRAGICON:
-        case WM_SIZE:
-        case WM_RBUTTONDOWN:
-        case WM_RBUTTONUP:
-        case WM_RBUTTONDBLCLK:
-        case WM_MBUTTONDOWN:
-        case WM_MBUTTONUP:
-        case WM_MBUTTONDBLCLK:
-        case WM_LBUTTONDOWN:
-        case WM_LBUTTONUP:
-        case WM_LBUTTONDBLCLK:
-        case WM_MOUSEMOVE:
-        case WM_COMMAND:
-        case WM_NOTIFY:
-        case WM_DESTROY:
-        case WM_MENUSELECT:
-        case WM_INITMENUPOPUP:
-        case WM_DRAWITEM:
-        case WM_MEASUREITEM:
-        case WM_KEYDOWN:
-        case WM_KEYUP:
-        case WM_CHAR: // Always an ASCII character
-        case WM_HSCROLL:
-        case WM_VSCROLL:
-        case WM_CTLCOLORBTN:
-        case WM_CTLCOLORDLG:
-        case WM_CTLCOLORLISTBOX:
-        case WM_CTLCOLORMSGBOX:
-        case WM_CTLCOLORSCROLLBAR:
-        case WM_CTLCOLORSTATIC:
-        case WM_CTLCOLOREDIT:
-        case WM_SYSCOLORCHANGE:
-        case WM_ERASEBKGND:
-        case WM_MDIACTIVATE:
-        case WM_DROPFILES:
-        case WM_QUERYENDSESSION:
-        case WM_CLOSE:
-        case WM_GETMINMAXINFO:
-               case WM_NCHITTEST:
-            return MSWDefWindowProc(nMsg, wParam, lParam );
+    wxEventType evtType;
+    if ( param == LBN_SELCHANGE )
+    {
+        evtType = wxEVT_COMMAND_LISTBOX_SELECTED;
+    }
+    else if ( param == LBN_DBLCLK )
+    {
+        evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED;
+    }
+    else
+    {
+        // some event we're not interested in
+        return FALSE;

     }
     }

-#endif

 
 

-  return wxControl::MSWWindowProc(nMsg, wParam, lParam);
+    wxCommandEvent event(evtType, m_windowId);
+    event.SetEventObject( this );
+
+    wxArrayInt aSelections;
+    int n, count = GetSelections(aSelections);
+    if ( count > 0 )
+    {
+        n = aSelections[0];
+        if ( HasClientObjectData() )
+            event.SetClientObject( GetClientObject(n) );
+        else if ( HasClientUntypedData() )
+            event.SetClientData( GetClientData(n) );
+        event.SetString( GetString(n) );
+    }
+    else
+    {
+        n = -1;
+    }
+
+    event.m_commandInt = n;
+
+    return GetEventHandler()->ProcessEvent(event);

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// wxCheckListBox support
+// ----------------------------------------------------------------------------
+

 #if wxUSE_OWNER_DRAWN
 
 // drawing
 #if wxUSE_OWNER_DRAWN
 
 // drawing


@@ -772,48 +739,61 @@ long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE    (1)
 
 // the height is the same for all items
 #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE    (1)
 
 // the height is the same for all items

-// ## should be changed for LBS_OWNERDRAWVARIABLE style listboxes
-//    NB: can't forward this to wxListBoxItem because LB_SETITEMDATA
-//        message is not yet sent when we get here!
+// TODO should be changed for LBS_OWNERDRAWVARIABLE style listboxes
+
+// NB: can't forward this to wxListBoxItem because LB_SETITEMDATA
+//     message is not yet sent when we get here!

 bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
 {
 bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
 {

-  // only owner-drawn control should receive this message
-  wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
+    // only owner-drawn control should receive this message
+    wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
+
+    MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;

 
 

-  MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
+    HDC hdc = CreateIC(wxT("DISPLAY"), NULL, NULL, 0);

 
 

-  wxDC dc;
-  dc.SetHDC((WXHDC)CreateIC("DISPLAY", NULL, NULL, 0));
-  dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT));
+    wxDC dc;
+    dc.SetHDC((WXHDC)hdc);
+    dc.SetFont(wxSystemSettings::GetFont(wxSYS_ANSI_VAR_FONT));

 
 

-  pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
-  pStruct->itemWidth  = dc.GetCharWidth();
+    pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
+    pStruct->itemWidth  = dc.GetCharWidth();

 
 

-  return TRUE;
+    dc.SetHDC(0);
+
+    DeleteDC(hdc);
+
+    return TRUE;

 }
 
 // forward the message to the appropriate item
 bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 {
 }
 
 // forward the message to the appropriate item
 bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 {

-  // only owner-drawn control should receive this message
-  wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
+    // only owner-drawn control should receive this message
+    wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );

 
 

-  DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item;
-  wxListBoxItem *pItem = (wxListBoxItem *)SendMessage(hwnd, LB_GETITEMDATA, 
-                                                      pStruct->itemID, 0);
+    DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item;
+    UINT itemID = pStruct->itemID;

 
 

-  wxCHECK( (int)pItem != LB_ERR, FALSE );
+    // the item may be -1 for an empty listbox
+    if ( itemID == (UINT)-1 )
+        return FALSE;

 
 

-  wxDC dc;
-  dc.SetHDC((WXHDC)pStruct->hDC, FALSE);
-  wxRect rect(pStruct->rcItem.left, pStruct->rcItem.top,
-              pStruct->rcItem.right - pStruct->rcItem.left, 
-              pStruct->rcItem.bottom - pStruct->rcItem.top);
+    long data = ListBox_GetItemData(GetHwnd(), pStruct->itemID);

 
 

-  return pItem->OnDrawItem(dc, rect, 
-                           (wxOwnerDrawn::wxODAction)pStruct->itemAction,
-                           (wxOwnerDrawn::wxODStatus)pStruct->itemState);
+    wxCHECK( data && (data != LB_ERR), FALSE );
+
+    wxListBoxItem *pItem = (wxListBoxItem *)data;
+
+    wxDCTemp dc((WXHDC)pStruct->hDC);
+    wxRect rect(wxPoint(pStruct->rcItem.left, pStruct->rcItem.top),
+                wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom));
+
+    return pItem->OnDrawItem(dc, rect,
+                             (wxOwnerDrawn::wxODAction)pStruct->itemAction,
+                             (wxOwnerDrawn::wxODStatus)pStruct->itemState);

 }
 
 }
 

-#endif
-  // wxUSE_OWNER_DRAWN
+#endif // wxUSE_OWNER_DRAWN
+
+#endif // wxUSE_LISTBOX