From 36ab4833c96bf9568e7fb06880c01729f2c75ece Mon Sep 17 00:00:00 2001
From: Michael Weghorn <m.weghorn@posteo.de>
Date: Sat, 7 Dec 2024 20:02:08 +0100
Subject: [PATCH] tdf#130857 qt weld: Implement
 QtInstanceTreeView::columns_autosize

QTreeView::resizeColumnToContents [1] looks like the Qt
equivalent for GTK's gtk_tree_view_columns_autosize [2].

[1] https://doc.qt.io/qt-6/qtreeview.html#resizeColumnToContents
[2] https://docs.gtk.org/gtk3/method.TreeView.columns_autosize.html

Change-Id: I4771896fb932834f51fa48ceaa3557181f474fcc
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/178062
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
---
 vcl/qt5/QtInstanceTreeView.cxx | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/vcl/qt5/QtInstanceTreeView.cxx b/vcl/qt5/QtInstanceTreeView.cxx
index 23fe407e8033..d65bcdd4746e 100644
--- a/vcl/qt5/QtInstanceTreeView.cxx
+++ b/vcl/qt5/QtInstanceTreeView.cxx
@@ -653,7 +653,15 @@ int QtInstanceTreeView::get_height_rows(int) const
     return 0;
 }
 
-void QtInstanceTreeView::columns_autosize() { assert(false && "Not implemented yet"); }
+void QtInstanceTreeView::columns_autosize()
+{
+    SolarMutexGuard g;
+
+    GetQtInstance().RunInMainThread([&] {
+        for (int i = 0; i < m_pModel->columnCount(); i++)
+            m_pTreeView->resizeColumnToContents(i);
+    });
+}
 
 void QtInstanceTreeView::set_column_fixed_widths(const std::vector<int>&)
 {