Support using GetTextExtent() with empty string to get descent in wxOSX.

[wxWidgets.git] / src / osx / listbox_osx.cpp

diff --git a/src/osx/listbox_osx.cpp b/src/osx/listbox_osx.cpp
index e7194b1b999116cb81cc2b8051ed42896e6b7513..63a7bc9e4b74b0a797d6b72ca564da73ad7d83f1 100644 (file)
--- a/src/osx/listbox_osx.cpp
+++ b/src/osx/listbox_osx.cpp
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        src/osx/carbon/listbox.cpp
+// Name:        src/osx/listbox_osx.cpp
 // Purpose:     wxListBox
 // Author:      Stefan Csomor
 // Modified by:
@@ -24,8 +24,6 @@
     #include "wx/dcclient.h"
 #endif
 
-IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControlWithItems)
-
 BEGIN_EVENT_TABLE(wxListBox, wxControl)
 END_EVENT_TABLE()
 
@@ -73,8 +71,11 @@ bool wxListBox::Create(
     const wxValidator& validator,
     const wxString& name )
 {
+    DontCreatePeer();
     m_blockEvents = false;
-    m_macIsUserPane = false;
+
+    if ( ! (style & wxNO_BORDER) )
+        style = (style & ~wxBORDER_MASK) | wxSUNKEN_BORDER ;
 
     wxASSERT_MSG( !(style & wxLB_MULTIPLE) || !(style & wxLB_EXTENDED),
                   wxT("only a single listbox selection mode can be specified") );
@@ -87,7 +88,7 @@ bool wxListBox::Create(
     else
         m_strings.unsorted = new wxArrayString;
 
-    m_peer = wxWidgetImpl::CreateListBox( this, parent, id, pos, size, style, GetExtraStyle() );
+    SetPeer(wxWidgetImpl::CreateListBox( this, parent, id, pos, size, style, GetExtraStyle() ));
 
     MacPostControlCreate( pos, size );
 
@@ -108,7 +109,7 @@ wxListBox::~wxListBox()
     m_blockEvents = false;
 
     // make sure no native events get sent to a object in destruction
-    wxDELETE(m_peer);
+    SetPeer(NULL);
 
     if ( IsSorted() )
         delete m_strings.sorted;
@@ -132,6 +133,11 @@ void wxListBox::FreeData()
 
 void wxListBox::DoSetFirstItem(int n)
 {
+    // osx actually only has an implementation for ensuring the visibility of a row, it does so  
+    // by scrolling the minimal amount necessary from the current scrolling position.
+    // in order to get the same behaviour I'd have to make sure first that the last line is visible, 
+    // followed by a scrollRowToVisible for the desired line 
+    GetListPeer()->ListScrollTo( GetCount()-1 );
     GetListPeer()->ListScrollTo( n );
 }
 
@@ -329,7 +335,6 @@ int wxListBox::FindString(const wxString& s, bool bCase) const
 
 void wxListBox::OnItemInserted(unsigned int WXUNUSED(pos))
 {
-
 }
 
 int wxListBox::DoInsertItems(const wxArrayStringsAdapter& items,
@@ -357,6 +362,14 @@ int wxListBox::DoInsertItems(const wxArrayStringsAdapter& items,
 
     GetListPeer()->UpdateLineToEnd(startpos);
 
+    // Inserting the items may scroll the listbox down to show the last
+    // selected one but we don't want to do it as it could result in e.g. the
+    // first items of a listbox be hidden immediately after its creation so
+    // show the first selected item instead. Ideal would probably be to
+    // preserve the old selection unchanged, in fact, but I don't know how to
+    // get the first visible item so for now do at least this.
+    SetFirstItem(startpos);
+
     UpdateOldSelections();
 
     return idx;
@@ -380,8 +393,8 @@ void wxListBox::SetString(unsigned int n, const wxString& s)
 
 void wxListBox::HandleLineEvent( unsigned int n, bool doubleClick )
 {
-    wxCommandEvent event( doubleClick ? wxEVT_COMMAND_LISTBOX_DOUBLECLICKED :
-        wxEVT_COMMAND_LISTBOX_SELECTED, GetId() );
+    wxCommandEvent event( doubleClick ? wxEVT_LISTBOX_DCLICK :
+        wxEVT_LISTBOX, GetId() );
     event.SetEventObject( this );
     if ( HasClientObjectData() )
         event.SetClientObject( GetClientObject(n) );