X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5615ab377070991b552e8e75c951970390a16b05..a111f2b216a90bacb254644d3cae526eddc9f9f1:/src/msw/listbox.cpp

diff --git a/src/msw/listbox.cpp b/src/msw/listbox.cpp
index 98d9b64dd4..e0ed9ed803 100644
--- a/src/msw/listbox.cpp
+++ b/src/msw/listbox.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        listbox.cpp
+// Name:        src/msw/listbox.cpp
 // Purpose:     wxListBox
 // Author:      Julian Smart
 // Modified by: Vadim Zeitlin (owner drawn stuff)
@@ -20,8 +20,7 @@
     #pragma hdrstop
 #endif
 
-#include "wx/window.h"
-#include "wx/msw/private.h"
+#if wxUSE_LISTBOX
 
 #ifndef WX_PRECOMP
 #include "wx/listbox.h"
@@ -32,6 +31,9 @@
 #include "wx/utils.h"
 #endif
 
+#include "wx/window.h"
+#include "wx/msw/private.h"
+
 #include <windowsx.h>
 
 #ifdef __WXWINE__
@@ -100,7 +102,7 @@ wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
     SetMarginWidth(0);
 }
 
-wxOwnerDrawn *wxListBox::CreateItem(size_t n)
+wxOwnerDrawn *wxListBox::CreateItem(size_t WXUNUSED(n))
 {
     return new wxListBoxItem();
 }
@@ -157,6 +159,12 @@ bool wxListBox::Create(wxWindow *parent,
 
     DWORD wstyle = WS_VISIBLE | WS_VSCROLL | WS_TABSTOP |
                    LBS_NOTIFY | LBS_HASSTRINGS /* | WS_CLIPSIBLINGS */;
+
+    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)
@@ -448,11 +456,6 @@ void wxListBox::DoSetItemClientData(int n, void *clientData)
         wxLogDebug(wxT("LB_SETITEMDATA failed"));
 }
 
-bool wxListBox::HasMultipleSelection() const
-{
-    return (m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED);
-}
-
 // Return number of selections and an array of selected integers
 int wxListBox::GetSelections(wxArrayInt& aSelections) const
 {
@@ -535,9 +538,9 @@ void wxListBox::SetString(int N, const wxString& s)
 
     void *oldData = NULL;
     wxClientData *oldObjData = NULL;
-    if ( m_clientDataItemsType == ClientData_Void )
+    if ( m_clientDataItemsType == wxClientData_Void )
         oldData = GetClientData(N);
-    else if ( m_clientDataItemsType == ClientData_Object )
+    else if ( m_clientDataItemsType == wxClientData_Object )
         oldObjData = GetClientObject(N);
 
     // delete and recreate it
@@ -657,7 +660,10 @@ wxSize wxListBox::DoGetBestSize() const
 
     wListbox += 3*cx;
 
-    int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*(wxMax(m_noItems, 7));
+    // 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);
 
     return wxSize(wListbox, hListbox);
 }
@@ -668,41 +674,43 @@ wxSize wxListBox::DoGetBestSize() const
 
 bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
 {
+    wxEventType evtType;
     if ( param == LBN_SELCHANGE )
     {
-        wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, 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);
+        evtType = wxEVT_COMMAND_LISTBOX_SELECTED;
     }
     else if ( param == LBN_DBLCLK )
     {
-        wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
-        event.SetEventObject( this );
+        evtType = wxEVT_COMMAND_LISTBOX_DOUBLECLICKED;
+    }
+    else
+    {
+        // some event we're not interested in
+        return FALSE;
+    }
+
+    wxCommandEvent event(evtType, m_windowId);
+    event.SetEventObject( this );
 
-        return GetEventHandler()->ProcessEvent(event);
+    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:
+    else
+    {
+        n = -1;
+    }
+
+    event.m_commandInt = n;
 
-    return FALSE;
+    return GetEventHandler()->ProcessEvent(event);
 }
 
 // ----------------------------------------------------------------------------
@@ -765,15 +773,15 @@ bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 
     wxListBoxItem *pItem = (wxListBoxItem *)data;
 
-    wxDC dc;
-    dc.SetHDC((WXHDC)pStruct->hDC, FALSE);
+    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);
+                             (wxOwnerDrawn::wxODAction)pStruct->itemAction,
+                             (wxOwnerDrawn::wxODStatus)pStruct->itemState);
 }
 
-#endif
-    // wxUSE_OWNER_DRAWN
+#endif // wxUSE_OWNER_DRAWN
+
+#endif // wxUSE_LISTBOX