[gparted] Enable display of progress bar text when applying operations (#7)

[Mike Fleetwood <mfleetwo src gnome org>]

commit bf39c221b81c7b23b9d786e7fe686aae15fb2966
Author: Luca Bacci <luca bacci982 gmail com>
Date:   Tue Jan 22 14:51:37 2019 +0100

    Enable display of progress bar text when applying operations (#7)
    
    In Gtk2 progress bars show optional text superimposed over the bar.  In
    Gtk3 the text is not displayed by default, so set the show-text property
    to re-enable this [1].
    
    Also note that since Gtk 3.14.0 the optional text is not superimposed
    over the progress bar, but instead displayed just above it [2][3][4].
    
    References:
    
    [1] Gtkmm 3.0 Gtk::ProgressBar Class Reference, set_show_text()
        "Sets whether the progressbar will show text superimposed over the
        bar."
        https://developer.gnome.org/gtkmm/3.0/classGtk_1_1ProgressBar.html#a0bfa6042f5d4b3509967abc2d8af57fe
    
    [2] Commit - Update the design for progress bars
        https://gitlab.gnome.org/GNOME/gtk/commit/74405cc964e405ea00cfac22856a62fea5ec648e
    
    [3] Bug 748784 - GtkProgressBar text cannot be superimposed on the
        progress bar
        https://bugzilla.gnome.org/show_bug.cgi?id=748784
    
    [4] Gtkmm 3.18 Gtk:ProgressBar Class Reference, set_show_text()
        "Set whether the progress bar will show text next to the bar."
        https://developer.gnome.org/gtkmm/3.18/classGtk_1_1ProgressBar.html#a0bfa6042f5d4b3509967abc2d8af57fe
    
    Closes #7 - Port to Gtk3

 src/Dialog_Progress.cc | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/Dialog_Progress.cc b/src/Dialog_Progress.cc
index b3b25218..a9d46bd7 100644
--- a/src/Dialog_Progress.cc
+++ b/src/Dialog_Progress.cc
@@ -54,6 +54,7 @@ Dialog_Progress::Dialog_Progress( const std::vector<Operation *> & operations )
                vbox->pack_start(label_current, Gtk::PACK_SHRINK);
 
                progressbar_current.set_pulse_step(0.01);
+               progressbar_current.set_show_text();
                vbox->pack_start(progressbar_current, Gtk::PACK_SHRINK);
 
                label_current_sub.set_alignment(Gtk::ALIGN_START);
@@ -61,6 +62,8 @@ Dialog_Progress::Dialog_Progress( const std::vector<Operation *> & operations )
 
                vbox->pack_start(*Utils::mk_label("<b>" + Glib::ustring(_("Completed Operations:")) + "</b>"),
                                        Gtk::PACK_SHRINK);
+
+               progressbar_all.set_show_text();
                vbox->pack_start(progressbar_all, Gtk::PACK_SHRINK);
 
                //create some icons here, instead of recreating them every time