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/////////////////////////////////////////////////////////////////////////
// Copyright (c) 2011-2017 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 {

/////////////////////////////////////////////////////////////////////////
/// This class stores information on a pie. A pie consists of a name, an
/// icon name and an unique ID. Furthermore it has an arbitrary amount
/// of ActionGroups storing Actions.
/////////////////////////////////////////////////////////////////////////

public class Pie : GLib.Object {

    /////////////////////////////////////////////////////////////////////
    /// The name of this Pie. It has not to be unique.
    /////////////////////////////////////////////////////////////////////

    public string name { get; set; }

    /////////////////////////////////////////////////////////////////////
    /// The name of the icon to be used for this Pie. It should exist in
    /// the users current icon theme, else a standard icon will be used.
    /////////////////////////////////////////////////////////////////////

    public string icon { get; set; }

    /////////////////////////////////////////////////////////////////////
    /// The ID of this Pie. It has to be unique among all Pies. This ID
    /// consists of three digits when the Pie was created by the user,
    /// of four digits when it was created dynamically by another class,
    /// for example by an ActionGroup.
    /////////////////////////////////////////////////////////////////////

    public string id { get; construct; }

    /////////////////////////////////////////////////////////////////////
    /// Stores all ActionGroups of this Pie.
    /////////////////////////////////////////////////////////////////////

    public Gee.ArrayList<ActionGroup?> action_groups { get; private set; }

    /////////////////////////////////////////////////////////////////////
    /// C'tor, initializes all given members.
    /////////////////////////////////////////////////////////////////////

    public Pie(string id, string name, string icon) {
        GLib.Object(id: id, name: name, icon:icon);

        this.action_groups = new Gee.ArrayList<ActionGroup?>();
    }

    /////////////////////////////////////////////////////////////////////
    /// Should be called when this Pie is deleted, in order to clean up
    /// stuff created by contained ActionGroups.
    /////////////////////////////////////////////////////////////////////

    public virtual void on_remove() {
        foreach (var action_group in action_groups)
            action_group.on_remove();
    }

    /////////////////////////////////////////////////////////////////////
    /// Adds an Action to this Pie.
    /////////////////////////////////////////////////////////////////////

    public void add_action(Action action, int at_position = -1) {
        var group = new ActionGroup(this.id);
            group.add_action(action);
        this.add_group(group, at_position);
    }

    /////////////////////////////////////////////////////////////////////
    /// Adds an ActionGroup to this Pie.
    /////////////////////////////////////////////////////////////////////

    public void add_group(ActionGroup group, int at_position = -1) {
        if (group.has_quickaction()) {
            foreach (var action_group in action_groups)
                action_group.disable_quickactions();
        }

        if (at_position < 0 || at_position >= this.action_groups.size)
            this.action_groups.add(group);
        else
            this.action_groups.insert(at_position, group);
    }

    public void remove_group(int index) {
        if (this.action_groups.size > index)
            this.action_groups.remove_at(index);
    }

    public void move_group(int from, int to) {
        if (this.action_groups.size > from && this.action_groups.size > to) {
            var tmp = this.action_groups[from];
            this.remove_group(from);
            this.add_group(tmp, to);
        }
    }

    public void update_group(ActionGroup group, int index) {
        if (this.action_groups.size > index)
            this.action_groups.set(index, group);
    }
}

}