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/////////////////////////////////////////////////////////////////////////
// Copyright (c) 2011-2016 by Simon Schneegans
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
/////////////////////////////////////////////////////////////////////////
namespace GnomePie {
/////////////////////////////////////////////////////////////////////////
/// A drop-down list, containing one entry for each existing Pie.
/////////////////////////////////////////////////////////////////////////
class PieComboList : Gtk.ComboBox {
/////////////////////////////////////////////////////////////////////
/// This signal gets emitted when the user selects a new Pie.
/////////////////////////////////////////////////////////////////////
public signal void on_select(string id);
/////////////////////////////////////////////////////////////////////
/// The currently selected row.
/////////////////////////////////////////////////////////////////////
public string current_id { get; private set; default=""; }
/////////////////////////////////////////////////////////////////////
/// Stores the data internally.
/////////////////////////////////////////////////////////////////////
private Gtk.ListStore data;
private enum DataPos {ICON, NAME, ID}
/////////////////////////////////////////////////////////////////////
/// C'tor, constructs the Widget.
/////////////////////////////////////////////////////////////////////
public PieComboList() {
GLib.Object();
this.data = new Gtk.ListStore(3, typeof(Gdk.Pixbuf),
typeof(string),
typeof(string));
this.data.set_sort_column_id(1, Gtk.SortType.ASCENDING);
base.set_model(this.data);
var icon_render = new Gtk.CellRendererPixbuf();
icon_render.xpad = 4;
this.pack_start(icon_render, false);
var name_render = new Gtk.CellRendererText();
this.pack_start(name_render, true);
this.add_attribute(icon_render, "pixbuf", DataPos.ICON);
this.add_attribute(name_render, "text", DataPos.NAME);
this.changed.connect(() => {
Gtk.TreeIter active;
if (this.get_active_iter(out active)) {
string id = "";
this.data.get(active, DataPos.ID, out id);
this.on_select(id);
this.current_id = id;
}
});
reload();
}
/////////////////////////////////////////////////////////////////////
/// Loads all existing Pies to the list.
/////////////////////////////////////////////////////////////////////
public void reload() {
Gtk.TreeIter active;
string id = "";
if (this.get_active_iter(out active))
this.data.get(active, DataPos.ID, out id);
data.clear();
foreach (var pie in PieManager.all_pies.entries) {
this.load_pie(pie.value);
}
select_first();
select(id);
}
/////////////////////////////////////////////////////////////////////
/// Selects the first Pie.
/////////////////////////////////////////////////////////////////////
public void select_first() {
Gtk.TreeIter active;
if(this.data.get_iter_first(out active) ) {
this.set_active_iter(active);
string id = "";
this.data.get(active, DataPos.ID, out id);
this.on_select(id);
this.current_id = id;
} else {
this.on_select("");
this.current_id = "";
}
}
/////////////////////////////////////////////////////////////////////
/// Selects the Pie with the given ID.
/////////////////////////////////////////////////////////////////////
public void select(string id) {
this.data.foreach((model, path, iter) => {
string pie_id;
this.data.get(iter, DataPos.ID, out pie_id);
if (id == pie_id) {
this.set_active_iter(iter);
return true;
}
return false;
});
}
/////////////////////////////////////////////////////////////////////
/// Loads one given pie to the list.
/////////////////////////////////////////////////////////////////////
private void load_pie(Pie pie) {
if (pie.id.length == 3) {
Gtk.TreeIter last;
this.data.append(out last);
var icon = new Icon(pie.icon, 24);
this.data.set(last, DataPos.ICON, icon.to_pixbuf(),
DataPos.NAME, pie.name,
DataPos.ID, pie.id);
}
}
}
}
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