Make code reading BMP files more robust.

[wxWidgets.git] / src / common / containr.cpp

diff --git a/src/common/containr.cpp b/src/common/containr.cpp
index 8490cc5b9f07a6bd3e5f89af2dc900c6cf692e8b..fbd3ea33d2bc7c1c3b0091bc11e79fa9b2650541 100644 (file)
--- a/src/common/containr.cpp
+++ b/src/common/containr.cpp
@@ -47,14 +47,20 @@
 // wxControlContainerBase
 // ----------------------------------------------------------------------------
 
-void wxControlContainerBase::SetCanFocus(bool acceptsFocus)
+bool wxControlContainerBase::UpdateCanFocusChildren()
 {
-    if ( acceptsFocus == m_acceptsFocus )
-        return;
+    const bool acceptsFocusChildren = HasAnyFocusableChildren();
+    if ( acceptsFocusChildren != m_acceptsFocusChildren )
+    {
+        m_acceptsFocusChildren = acceptsFocusChildren;
 
-    m_acceptsFocus = acceptsFocus;
+        // In the ports where it does something non trivial, the parent window
+        // should only be focusable if it doesn't have any focusable children
+        // (e.g. native focus handling in wxGTK totally breaks down otherwise).
+        m_winParent->SetCanFocus(m_acceptsFocusSelf && !m_acceptsFocusChildren);
+    }
 
-    m_winParent->SetCanFocus(m_acceptsFocus);
+    return m_acceptsFocusChildren;
 }
 
 bool wxControlContainerBase::HasAnyFocusableChildren() const
@@ -174,19 +180,6 @@ void wxControlContainer::SetLastFocus(wxWindow *win)
             wxLogTrace(TRACE_FOCUS, wxT("No more last focus"));
         }
     }
-
-    // propagate the last focus upwards so that our parent can set focus back
-    // to us if it loses it now and regains later; do *not* do this if we are
-    // a toplevel window (e.g. wxDialog) that has another frame as its parent
-    if ( !m_winParent->IsTopLevel() )
-    {
-        wxWindow *parent = m_winParent->GetParent();
-        if ( parent )
-        {
-            wxChildFocusEvent eventFocus(m_winParent);
-            parent->GetEventHandler()->ProcessEvent(eventFocus);
-        }
-    }
 }
 
 // --------------------------------------------------------------------