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.h"
  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