From ac0981084be17e806d08ffdde0215b3c2585e749 Mon Sep 17 00:00:00 2001
From: =?utf8?q?V=C3=A1clav=20Slav=C3=ADk?= <vslavik@fastmail.fm>
Date: Sun, 21 Aug 2011 09:07:02 +0000
Subject: [PATCH] Fix autosize columns width calculation in generic
 wxDataViewCtrl.

Column widths were recomputed too soon -- after the model changed, but
before the control's own data structures were updated to reflect the
change. This could lead to incorrect calculations or worse, crashes.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68806 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/generic/datavgen.cpp | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index 233b83f5b3..38ccff89df 100644
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -1969,7 +1969,6 @@ bool Walker( wxDataViewTreeNode * node, DoJob & func )
 
 bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxDataViewItem & item)
 {
-    GetOwner()->InvalidateColBestWidths();
 
     if (IsVirtualList())
     {
@@ -2004,6 +2003,7 @@ bool wxDataViewMainWindow::ItemAdded(const wxDataViewItem & parent, const wxData
         m_count = -1;
     }
 
+    GetOwner()->InvalidateColBestWidths();
     UpdateDisplay();
 
     return true;
@@ -2014,8 +2014,6 @@ static void DestroyTreeHelper( wxDataViewTreeNode * node);
 bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
                                        const wxDataViewItem& item)
 {
-    GetOwner()->InvalidateColBestWidths();
-
     if (IsVirtualList())
     {
         wxDataViewVirtualListModel *list_model =
@@ -2128,6 +2126,7 @@ bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
     if( m_currentRow > GetRowCount() )
         ChangeCurrentRow(m_count - 1);
 
+    GetOwner()->InvalidateColBestWidths();
     UpdateDisplay();
 
     return true;
@@ -2135,11 +2134,11 @@ bool wxDataViewMainWindow::ItemDeleted(const wxDataViewItem& parent,
 
 bool wxDataViewMainWindow::ItemChanged(const wxDataViewItem & item)
 {
-    GetOwner()->InvalidateColBestWidths();
-
     SortPrepare();
     g_model->Resort();
 
+    GetOwner()->InvalidateColBestWidths();
+
     // Send event
     wxWindow *parent = GetParent();
     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
@@ -2167,8 +2166,6 @@ bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned i
     if (view_column == -1)
         return false;
 
-    GetOwner()->InvalidateColBestWidth(view_column);
-
     // NOTE: to be valid, we cannot use e.g. INT_MAX - 1
 /*#define MAX_VIRTUAL_WIDTH       100000
 
@@ -2181,6 +2178,8 @@ bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned i
     SortPrepare();
     g_model->Resort();
 
+    GetOwner()->InvalidateColBestWidth(view_column);
+
     // Send event
     wxWindow *parent = GetParent();
     wxDataViewEvent le(wxEVT_COMMAND_DATAVIEW_ITEM_VALUE_CHANGED, parent->GetId());
@@ -2196,14 +2195,13 @@ bool wxDataViewMainWindow::ValueChanged( const wxDataViewItem & item, unsigned i
 
 bool wxDataViewMainWindow::Cleared()
 {
-    GetOwner()->InvalidateColBestWidths();
-
     DestroyTree();
     m_selection.Clear();
 
     SortPrepare();
     BuildTree( GetOwner()->GetModel() );
 
+    GetOwner()->InvalidateColBestWidths();
     UpdateDisplay();
 
     return true;
-- 
2.45.2