making sure an empty label is not reserving place above, fixes #11123

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

diff --git a/src/univ/listbox.cpp b/src/univ/listbox.cpp
index 0255489bceac84129857d69ca260f7667ff96b59..520ae86b20c61e16a44417ddee3e0ee08781e2d7 100644 (file)
--- a/src/univ/listbox.cpp
+++ b/src/univ/listbox.cpp
@@ -115,7 +115,7 @@ void wxListBox::Init()
     m_maxWidth = 0;
     m_scrollRangeY = 0;
     m_maxWidthItem = -1;
-    m_strings = NULL;
+    m_strings.unsorted = NULL;
 
     // no items hence no current item
     m_current = -1;
@@ -192,7 +192,10 @@ bool wxListBox::Create(wxWindow *parent,
                             validator, name) )
         return false;
 
-    m_strings = IsSorted() ? new wxSortedArrayString : new wxArrayString;
+    if ( IsSorted() )
+        m_strings.sorted = new wxSortedArrayString;
+    else
+        m_strings.unsorted = new wxArrayString;
 
     Set(n, choices);
 
@@ -208,9 +211,34 @@ wxListBox::~wxListBox()
     // call this just to free the client data -- and avoid leaking memory
     DoClear();
 
-    delete m_strings;
+    if ( IsSorted() )
+        delete m_strings.sorted;
+    else
+        delete m_strings.unsorted;
+
+    m_strings.sorted = NULL;
+}
+
+// ----------------------------------------------------------------------------
+// accessing strings
+// ----------------------------------------------------------------------------
+
+unsigned int wxListBox::GetCount() const
+{
+    return IsSorted() ? m_strings.sorted->size()
+                      : m_strings.unsorted->size();
+}
+
+wxString wxListBox::GetString(unsigned int n) const
+{
+    return IsSorted() ? m_strings.sorted->Item(n)
+                      : m_strings.unsorted->Item(n);
+}
 
-    m_strings = NULL;
+int wxListBox::FindString(const wxString& s, bool bCase) const
+{
+    return IsSorted() ? m_strings.sorted->Index(s, bCase)
+                      : m_strings.unsorted->Index(s, bCase);
 }
 
 // ----------------------------------------------------------------------------
@@ -228,8 +256,8 @@ int wxListBox::DoInsertItems(const wxArrayStringsAdapter& items,
     for ( unsigned int i = 0; i < numItems; ++i )
     {
         const wxString& item = items[i];
-        idx = IsSorted() ? m_strings->Add(item)
-                         : (m_strings->Insert(item, pos), pos++);
+        idx = IsSorted() ? m_strings.sorted->Add(item)
+                         : (m_strings.unsorted->Insert(item, pos), pos++);
 
         m_itemsClientData.Insert(NULL, idx);
         AssignNewItemClientData(idx, clientData, i, type);
@@ -255,9 +283,12 @@ int wxListBox::DoInsertItems(const wxArrayStringsAdapter& items,
 
 void wxListBox::SetString(unsigned int n, const wxString& s)
 {
-    wxCHECK_RET( !IsSorted(), _T("can't set string in sorted listbox") );
+    wxCHECK_RET( !IsSorted(), wxT("can't set string in sorted listbox") );
 
-    (*m_strings)[n] = s;
+    if ( IsSorted() )
+        (*m_strings.sorted)[n] = s;
+    else
+        (*m_strings.unsorted)[n] = s;
 
     if ( HasHorzScrollbar() )
     {
@@ -290,7 +321,10 @@ void wxListBox::SetString(unsigned int n, const wxString& s)
 
 void wxListBox::DoClear()
 {
-    m_strings->Clear();
+    if ( IsSorted() )
+        m_strings.sorted->Clear();
+    else
+        m_strings.unsorted->Clear();
 
     m_itemsClientData.Clear();
     m_selections.Clear();
@@ -307,13 +341,16 @@ void wxListBox::DoClear()
 void wxListBox::DoDeleteOneItem(unsigned int n)
 {
     wxCHECK_RET( IsValid(n),
-                 _T("invalid index in wxListBox::Delete") );
+                 wxT("invalid index in wxListBox::Delete") );
 
     // do it before removing the index as otherwise the last item will not be
     // refreshed (as GetCount() will be decremented)
     RefreshFromItemToEnd(n);
 
-    m_strings->RemoveAt(n);
+    if ( IsSorted() )
+        m_strings.sorted->RemoveAt(n);
+    else
+        m_strings.unsorted->RemoveAt(n);
 
     m_itemsClientData.RemoveAt(n);
 
@@ -423,7 +460,7 @@ void wxListBox::DoSetSelection(int n, bool select)
     // sanity check: a single selection listbox can't have more than one item
     // selected
     wxASSERT_MSG( HasMultipleSelection() || (m_selections.GetCount() < 2),
-                  _T("multiple selected items in single selection lbox?") );
+                  wxT("multiple selected items in single selection lbox?") );
 
     if ( select )
     {
@@ -435,12 +472,12 @@ void wxListBox::DoSetSelection(int n, bool select)
 int wxListBox::GetSelection() const
 {
     wxCHECK_MSG( !HasMultipleSelection(), wxNOT_FOUND,
-                 _T("use wxListBox::GetSelections for ths listbox") );
+                 wxT("use wxListBox::GetSelections for ths listbox") );
 
     return m_selections.IsEmpty() ? wxNOT_FOUND : m_selections[0];
 }
 
-int wxCMPFUNC_CONV wxCompareInts(int *n, int *m)
+static int wxCMPFUNC_CONV wxCompareInts(int *n, int *m)
 {
     return *n - *m;
 }
@@ -602,7 +639,7 @@ void wxListBox::UpdateItems()
     if ( m_updateCount == -1 )
     {
         // refresh all
-        wxLogTrace(_T("listbox"), _T("Refreshing all"));
+        wxLogTrace(wxT("listbox"), wxT("Refreshing all"));
 
         Refresh();
     }
@@ -619,7 +656,7 @@ void wxListBox::UpdateItems()
         // entire line(s)
         CalcScrolledPosition(0, rect.y, NULL, &rect.y);
 
-        wxLogTrace(_T("listbox"), _T("Refreshing items %d..%d (%d-%d)"),
+        wxLogTrace(wxT("listbox"), wxT("Refreshing items %d..%d (%d-%d)"),
                    m_updateFrom, m_updateFrom + m_updateCount - 1,
                    rect.GetTop(), rect.GetBottom());
 
@@ -680,7 +717,7 @@ void wxListBox::DoDraw(wxControlRenderer *renderer)
     wxCoord lineHeight = GetLineHeight();
     unsigned int itemFirst = yTop / lineHeight,
                  itemLast = (yBottom + lineHeight - 1) / lineHeight,
-                 itemMax = m_strings->GetCount();
+                 itemMax = GetCount();
 
     if ( itemFirst >= itemMax )
         return;
@@ -689,7 +726,7 @@ void wxListBox::DoDraw(wxControlRenderer *renderer)
         itemLast = itemMax;
 
     // do draw them
-    wxLogTrace(_T("listbox"), _T("Repainting items %d..%d"),
+    wxLogTrace(wxT("listbox"), wxT("Repainting items %d..%d"),
                itemFirst, itemLast);
 
     DoDrawRange(renderer, itemFirst, itemLast);
@@ -749,7 +786,7 @@ wxCoord wxListBox::GetMaxWidth() const
     {
         wxListBox *self = wxConstCast(this, wxListBox);
         wxCoord width;
-        unsigned int count = m_strings->GetCount();
+        unsigned int count = GetCount();
         for ( unsigned int n = 0; n < count; n++ )
         {
             GetTextExtent(this->GetString(n), &width, NULL);
@@ -806,7 +843,7 @@ wxSize wxListBox::DoGetBestClientSize() const
     wxCoord width = 0,
             height = 0;
 
-    unsigned int count = m_strings->GetCount();
+    unsigned int count = GetCount();
     for ( unsigned int n = 0; n < count; n++ )
     {
         wxCoord w,h;
@@ -910,7 +947,7 @@ bool wxListBox::FindItem(const wxString& prefix, bool strictlyAfter)
     int last = first == 0 ? count - 1 : first - 1;
 
     // if this is not true we'd never exit from the loop below!
-    wxASSERT_MSG( first < (int)count && last < (int)count, _T("logic error") );
+    wxASSERT_MSG( first < (int)count && last < (int)count, wxT("logic error") );
 
     // precompute it outside the loop
     size_t len = prefix.length();
@@ -1156,7 +1193,7 @@ bool wxListBox::PerformAction(const wxControlAction& action,
         AnchorSelection(item == -1 ? m_current : item);
     else if ( action == wxACTION_LISTBOX_SELECTALL ||
               action == wxACTION_LISTBOX_SELTOGGLE )
-        wxFAIL_MSG(_T("unimplemented yet"));
+        wxFAIL_MSG(wxT("unimplemented yet"));
     else
         return wxControl::PerformAction(action, numArg, strArg);
 
@@ -1467,7 +1504,7 @@ bool wxStdListboxInputHandler::HandleMouseMove(wxInputConsumer *consumer,
         {
             // pass something into strArg to tell the listbox that it shouldn't
             // send the notification message: see PerformAction() above
-            lbox->PerformAction(m_actionMouse, item, _T("no"));
+            lbox->PerformAction(m_actionMouse, item, wxT("no"));
         }
         // else: don't pass invalid index to the listbox
     }