pv/views/viewbase.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
   5  * Copyright (C) 2016 Soeren Apel <soeren@apelpie.net>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifdef ENABLE_DECODE
  22 #include <libsigrokdecode/libsigrokdecode.h>
  23 #endif
  24
  25 #include <libsigrokcxx/libsigrokcxx.hpp>
  26
  27 #include "pv/session.hpp"
  28 #include "pv/util.hpp"
  29
  30 using std::shared_ptr;
  31
  32 namespace pv {
  33 namespace views {
  34
  35 const int ViewBase::MaxViewAutoUpdateRate = 25; // No more than 25 Hz
  36
  37 ViewBase::ViewBase(Session &session, bool is_main_view, QWidget *parent) :
  38         session_(session),
  39         is_main_view_(is_main_view)
  40 {
  41         (void)parent;
  42
  43         connect(&session_, SIGNAL(signals_changed()),
  44                 this, SLOT(signals_changed()));
  45         connect(&session_, SIGNAL(capture_state_changed(int)),
  46                 this, SLOT(capture_state_updated(int)));
  47
  48         connect(&delayed_view_updater_, SIGNAL(timeout()),
  49                 this, SLOT(perform_delayed_view_update()));
  50         delayed_view_updater_.setSingleShot(true);
  51         delayed_view_updater_.setInterval(1000 / MaxViewAutoUpdateRate);
  52 }
  53
  54 Session& ViewBase::session()
  55 {
  56         return session_;
  57 }
  58
  59 const Session& ViewBase::session() const
  60 {
  61         return session_;
  62 }
  63
  64 void ViewBase::clear_signals()
  65 {
  66 }
  67
  68 unordered_set< shared_ptr<data::SignalBase> > ViewBase::signalbases() const
  69 {
  70         return signalbases_;
  71 }
  72
  73 void ViewBase::clear_signalbases()
  74 {
  75         for (shared_ptr<data::SignalBase> signalbase : signalbases_) {
  76                 disconnect(signalbase.get(), SIGNAL(samples_cleared()),
  77                         this, SLOT(on_data_updated()));
  78                 disconnect(signalbase.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
  79                         this, SLOT(on_data_updated()));
  80         }
  81
  82         signalbases_.clear();
  83 }
  84
  85 void ViewBase::add_signalbase(const shared_ptr<data::SignalBase> signalbase)
  86 {
  87         signalbases_.insert(signalbase);
  88
  89         connect(signalbase.get(), SIGNAL(samples_cleared()),
  90                 this, SLOT(on_data_updated()));
  91         connect(signalbase.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
  92                 this, SLOT(on_data_updated()));
  93 }
  94
  95 #ifdef ENABLE_DECODE
  96 void ViewBase::clear_decode_signals()
  97 {
  98 }
  99
 100 void ViewBase::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
 101 {
 102         (void)signal;
 103 }
 104
 105 void ViewBase::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
 106 {
 107         (void)signal;
 108 }
 109 #endif
 110
 111 void ViewBase::save_settings(QSettings &settings) const
 112 {
 113         (void)settings;
 114 }
 115
 116 void ViewBase::restore_settings(QSettings &settings)
 117 {
 118         (void)settings;
 119 }
 120
 121 void ViewBase::trigger_event(util::Timestamp location)
 122 {
 123         (void)location;
 124 }
 125
 126 void ViewBase::signals_changed()
 127 {
 128 }
 129
 130 void ViewBase::capture_state_updated(int state)
 131 {
 132         (void)state;
 133 }
 134
 135 void ViewBase::perform_delayed_view_update()
 136 {
 137 }
 138
 139 void ViewBase::on_data_updated()
 140 {
 141         if (!delayed_view_updater_.isActive())
 142                 delayed_view_updater_.start();
 143 }
 144
 145 }  // namespace views
 146 } // namespace pv