From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Mon, 27 Nov 2006 16:36:09 +0000 (+0000)
Subject: avoid assert in DoGetBestSize() for an empty tree
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/16f32ee7652c15bdbe46a85cdc0ecf036bd4003e

avoid assert in DoGetBestSize() for an empty tree


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43689 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/src/common/treebase.cpp b/src/common/treebase.cpp
index 38d242bf06..08220fa503 100644
--- a/src/common/treebase.cpp
+++ b/src/common/treebase.cpp
@@ -162,7 +162,9 @@ wxSize wxTreeCtrlBase::DoGetBestSize() const
     else // use precise, if potentially slow, size computation method
     {
         // iterate over all items recursively
-        wxGetBestTreeSize(this, GetRootItem(), size);
+        wxTreeItemId idRoot = GetRootItem();
+        if ( idRoot.IsOk() )
+            wxGetBestTreeSize(this, idRoot, size);
     }
 
     // need some minimal size even for empty tree