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 #include "pv/data/segment.hpp"
  30
  31 using std::shared_ptr;
  32
  33 namespace pv {
  34 namespace views {
  35
  36 const int ViewBase::MaxViewAutoUpdateRate = 25; // No more than 25 Hz
  37
  38 ViewBase::ViewBase(Session &session, bool is_main_view, QWidget *parent) :
  39         // Note: Place defaults in ViewBase::reset_view_state(), not here
  40         session_(session),
  41         is_main_view_(is_main_view)
  42 {
  43         (void)parent;
  44
  45         connect(&session_, SIGNAL(signals_changed()),
  46                 this, SLOT(signals_changed()));
  47         connect(&session_, SIGNAL(capture_state_changed(int)),
  48                 this, SLOT(capture_state_updated(int)));
  49         connect(&session_, SIGNAL(new_segment(int)),
  50                 this, SLOT(on_new_segment(int)));
  51
  52         connect(&delayed_view_updater_, SIGNAL(timeout()),
  53                 this, SLOT(perform_delayed_view_update()));
  54         delayed_view_updater_.setSingleShot(true);
  55         delayed_view_updater_.setInterval(1000 / MaxViewAutoUpdateRate);
  56 }
  57
  58 void ViewBase::reset_view_state()
  59 {
  60         current_segment_ = 0;
  61 }
  62
  63 Session& ViewBase::session()
  64 {
  65         return session_;
  66 }
  67
  68 const Session& ViewBase::session() const
  69 {
  70         return session_;
  71 }
  72
  73 void ViewBase::clear_signals()
  74 {
  75 }
  76
  77 unordered_set< shared_ptr<data::SignalBase> > ViewBase::signalbases() const
  78 {
  79         return signalbases_;
  80 }
  81
  82 void ViewBase::clear_signalbases()
  83 {
  84         for (const shared_ptr<data::SignalBase>& signalbase : signalbases_) {
  85                 disconnect(signalbase.get(), SIGNAL(samples_cleared()),
  86                         this, SLOT(on_data_updated()));
  87                 disconnect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
  88                         this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
  89         }
  90
  91         signalbases_.clear();
  92 }
  93
  94 void ViewBase::add_signalbase(const shared_ptr<data::SignalBase> signalbase)
  95 {
  96         signalbases_.insert(signalbase);
  97
  98         connect(signalbase.get(), SIGNAL(samples_cleared()),
  99                 this, SLOT(on_data_updated()));
 100         connect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
 101                 this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
 102 }
 103
 104 #ifdef ENABLE_DECODE
 105 void ViewBase::clear_decode_signals()
 106 {
 107 }
 108
 109 void ViewBase::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
 110 {
 111         (void)signal;
 112 }
 113
 114 void ViewBase::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
 115 {
 116         (void)signal;
 117 }
 118 #endif
 119
 120 void ViewBase::save_settings(QSettings &settings) const
 121 {
 122         (void)settings;
 123 }
 124
 125 void ViewBase::restore_settings(QSettings &settings)
 126 {
 127         (void)settings;
 128 }
 129
 130 void ViewBase::trigger_event(int segment_id, util::Timestamp location)
 131 {
 132         (void)segment_id;
 133         (void)location;
 134 }
 135
 136 void ViewBase::signals_changed()
 137 {
 138 }
 139
 140 void ViewBase::on_new_segment(int new_segment_id)
 141 {
 142         (void)new_segment_id;
 143 }
 144
 145 void ViewBase::on_segment_completed(int new_segment_id)
 146 {
 147         (void)new_segment_id;
 148 }
 149
 150 void ViewBase::capture_state_updated(int state)
 151 {
 152         (void)state;
 153 }
 154
 155 void ViewBase::perform_delayed_view_update()
 156 {
 157 }
 158
 159 void ViewBase::on_samples_added(uint64_t segment_id, uint64_t start_sample,
 160         uint64_t end_sample)
 161 {
 162         (void)start_sample;
 163         (void)end_sample;
 164
 165         if (segment_id != current_segment_)
 166                 return;
 167
 168         if (!delayed_view_updater_.isActive())
 169                 delayed_view_updater_.start();
 170 }
 171
 172 void ViewBase::on_data_updated()
 173 {
 174         if (!delayed_view_updater_.isActive())
 175                 delayed_view_updater_.start();
 176 }
 177
 178 }  // namespace views
 179 } // namespace pv