[gparted] modern-gtk2: Use Gtk::TreeView::Column::get_first_cell() (!17)

[Mike Fleetwood <mfleetwo src gnome org>]

commit 197c88ad730589298af7b1e07643d87e40efa4ab
Author: Luca Bacci <luca bacci982 gmail com>
Date:   Fri Aug 10 09:45:17 2018 +0200

    modern-gtk2: Use Gtk::TreeView::Column::get_first_cell() (!17)
    
    Gtk::TreeView::Column::get_first_cell_renderer() was deprecated in
    gtkmm 2.24.  Replace with Gtk::TreeView::Column::get_first_cell().
    
    References:
    https://developer.gnome.org/gtkmm/2.24/classGtk_1_1TreeViewColumn.html
    https://gitlab.gnome.org/GNOME/gtkmm/blob/2.24.0/NEWS#L64
    
    Closes !17 - Gtk2 modernisation

 src/Dialog_Progress.cc | 2 +-
 src/TreeView_Detail.cc | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/src/Dialog_Progress.cc b/src/Dialog_Progress.cc
index 9ca4dead..7aae8b6d 100644
--- a/src/Dialog_Progress.cc
+++ b/src/Dialog_Progress.cc
@@ -80,7 +80,7 @@ Dialog_Progress::Dialog_Progress( const std::vector<Operation *> & operations )
 
                treeview_operations.get_column(0)->set_expand(true);
                treeview_operations.get_column(0)->set_cell_data_func(
-                       *(treeview_operations.get_column(0)->get_first_cell_renderer()),
+                       *(treeview_operations.get_column(0)->get_first_cell()),
                        sigc::mem_fun(*this, &Dialog_Progress::on_cell_data_description) );
 
                //fill 'er up
diff --git a/src/TreeView_Detail.cc b/src/TreeView_Detail.cc
index ffa96a1b..375837fe 100644
--- a/src/TreeView_Detail.cc
+++ b/src/TreeView_Detail.cc
@@ -57,7 +57,7 @@ TreeView_Detail::TreeView_Detail()
        // Tree view column "File System"; add file system text cell.
        get_column( 2 )->pack_start( treeview_detail_columns.filesystem, true );
        // Color pixbuf cell is left aligned.
-       get_column( 2 )->get_first_cell_renderer()->property_xalign() = Gtk::ALIGN_LEFT;
+       get_column(2)->get_first_cell()->property_xalign() = Gtk::ALIGN_LEFT;
        // File system text cell is left aligned.
        std::vector<Gtk::CellRenderer*> renderers = get_column( 2 )->get_cell_renderers();
        Gtk::CellRendererText *cell_renderer_text = dynamic_cast<Gtk::CellRendererText*>( renderers.back() );
@@ -66,7 +66,7 @@ TreeView_Detail::TreeView_Detail()
        // Tree view column "Mount Point", make column resizable and show too wide text
        // with ellipsis.
        get_column( 3 )->set_resizable( true );
-       cell_renderer_text = dynamic_cast<Gtk::CellRendererText *>( get_column( 3 
)->get_first_cell_renderer() );
+       cell_renderer_text = dynamic_cast<Gtk::CellRendererText *>(get_column(3)->get_first_cell());
        cell_renderer_text->property_ellipsize() = Pango::ELLIPSIZE_END;
 
        //set alignment of numeric columns to right