EstimateBox.vala

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/*
 * EstimateBox.vala
 *
 * Copyright 2012-2018 Tony George <teejeetech@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 *
 *
 */
 
using Gtk;
using Gee;
 
#if XAPP
using XApp;
#endif
 
using TeeJee.Logging;
using TeeJee.FileSystem;
using TeeJee.JsonHelper;
using TeeJee.ProcessHelper;
using TeeJee.GtkHelper;
using TeeJee.System;
using TeeJee.Misc;
 
class EstimateBox : Gtk.Box{
    
    private Gtk.ProgressBar progressbar;
    private Gtk.Window parent_window;
    
    public EstimateBox (Gtk.Window _parent_window) {
 
        log_debug("EstimateBox: EstimateBox()");
        
        //base(Gtk.Orientation.VERTICAL, 6); // issue with vala
        GLib.Object(orientation: Gtk.Orientation.VERTICAL, spacing: 6); // work-around
        parent_window = _parent_window;
        margin_top = 12;
        margin_bottom = 12;
        margin_start = 12;
        margin_end = 12;
        
        // header
        add_label_header(this, _("Estimating System Size..."), true);
 
        var hbox_status = new Gtk.Box(Orientation.HORIZONTAL, 6);
        append(hbox_status);
        
        var spinner = new Gtk.Spinner();
        spinner.start();
        hbox_status.append(spinner);
        
        //lbl_msg
        var lbl_msg = add_label(hbox_status, _("Please wait..."));
        lbl_msg.halign = Align.START;
        lbl_msg.ellipsize = Pango.EllipsizeMode.END;
        lbl_msg.max_width_chars = 50;
 
        //progressbar
        progressbar = new Gtk.ProgressBar();
        progressbar.pulse_step = 0.01;
        //progressbar.set_size_request(-1,25);
        append(progressbar);
 
        log_debug("EstimateBox: EstimateBox(): exit");
    }
 
    public void estimate_system_size() {
 
        if (Main.first_snapshot_size > 0){
            log_debug("EstimateBox: size > 0");
            return;
        }
 
        // start the estimation if not already running
 
        log_debug("EstimateBox: thread started");
 
        #if XAPP
        XApp.set_window_progress_pulse(parent_window, true);
        #endif
        progressbar.pulse();
 
        App.estimate_system_size(progressbar.pulse);
 
        #if XAPP
        XApp.set_window_progress_pulse(parent_window, false);
        #endif
    }
}