in GtkSalObject::GetOptimalSize get the preferred size

and not its current size as set via SetPosSize

as needed for calc navigator shrink/expand contents toolbar toggle

Change-Id: I848402f609d9c03fde9953e3b313c5a815a7f4f7
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112270
Tested-by: Caolán McNamara <caolanm@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/vcl/unx/gtk3/gtk3gtkobject.cxx b/vcl/unx/gtk3/gtk3gtkobject.cxx
index 5923088b79ee..e6da598d5e30 100644
--- a/vcl/unx/gtk3/gtk3gtkobject.cxx
+++ b/vcl/unx/gtk3/gtk3gtkobject.cxx
@@ -206,8 +206,18 @@ Size GtkSalObjectBase::GetOptimalSize() const
         bool bVisible = gtk_widget_get_visible(m_pSocket);
         if (!bVisible)
             gtk_widget_set_visible(m_pSocket, true);
+
+        // Undo SetPosSize before getting its preferred size
+        gint width(-1), height(-1);
+        gtk_widget_get_size_request(m_pSocket, &width, &height);
+        gtk_widget_set_size_request(m_pSocket, -1, -1);
+
         GtkRequisition size;
         gtk_widget_get_preferred_size(m_pSocket, nullptr, &size);
+
+        // Restore SetPosSize size
+        gtk_widget_set_size_request(m_pSocket, width, height);
+
         if (!bVisible)
             gtk_widget_set_visible(m_pSocket, false);
         return Size(size.width, size.height);