Reordered argument handling
[pulseview.git] / pv / widgets / decodermenu.cpp
1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
19  */
20
21 #include <cassert>
22
23 #include <libsigrokdecode/libsigrokdecode.h>
24
25 #include "decodermenu.hpp"
26
27 namespace pv {
28 namespace widgets {
29
30 DecoderMenu::DecoderMenu(QWidget *parent, bool first_level_decoder) :
31         QMenu(parent),
32         mapper_(this)
33 {
34         GSList *l = g_slist_sort(g_slist_copy(
35                 (GSList*)srd_decoder_list()), decoder_name_cmp);
36         for(; l; l = l->next)
37         {
38                 const srd_decoder *const d = (srd_decoder*)l->data;
39                 assert(d);
40
41                 const bool have_channels = (d->channels || d->opt_channels) != 0;
42                 if (first_level_decoder == have_channels) {
43                         QAction *const action =
44                                 addAction(QString::fromUtf8(d->name));
45                         action->setData(qVariantFromValue(l->data));
46                         mapper_.setMapping(action, action);
47                         connect(action, SIGNAL(triggered()),
48                                 &mapper_, SLOT(map()));
49                 }
50         }
51         g_slist_free(l);
52
53         connect(&mapper_, SIGNAL(mapped(QObject*)),
54                 this, SLOT(on_action(QObject*)));
55 }
56
57 int DecoderMenu::decoder_name_cmp(const void *a, const void *b)
58 {
59         return strcmp(((const srd_decoder*)a)->name,
60                 ((const srd_decoder*)b)->name);
61 }
62
63 void DecoderMenu::on_action(QObject *action)
64 {
65         assert(action);
66         srd_decoder *const dec =
67                 (srd_decoder*)((QAction*)action)->data().value<void*>();
68         assert(dec);
69
70         decoder_selected(dec);  
71 }
72
73 } // widgets
74 } // pv