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 char* ViewTypeNames[ViewTypeCount] = {
  37         "Trace View",
  38 #ifdef ENABLE_DECODE
  39         "Decoder Output View"
  40 #endif
  41 };
  42
  43 const int ViewBase::MaxViewAutoUpdateRate = 25; // No more than 25 Hz
  44
  45 ViewBase::ViewBase(Session &session, bool is_main_view, QMainWindow *parent) :
  46         // Note: Place defaults in ViewBase::reset_view_state(), not here
  47         QWidget(parent),
  48         session_(session),
  49         is_main_view_(is_main_view)
  50 {
  51         (void)parent;
  52
  53         connect(&session_, SIGNAL(signals_changed()),
  54                 this, SLOT(signals_changed()));
  55         connect(&session_, SIGNAL(capture_state_changed(int)),
  56                 this, SLOT(capture_state_updated(int)));
  57         connect(&session_, SIGNAL(new_segment(int)),
  58                 this, SLOT(on_new_segment(int)));
  59
  60         connect(&delayed_view_updater_, SIGNAL(timeout()),
  61                 this, SLOT(perform_delayed_view_update()));
  62         delayed_view_updater_.setSingleShot(true);
  63         delayed_view_updater_.setInterval(1000 / MaxViewAutoUpdateRate);
  64 }
  65
  66 bool ViewBase::is_main_view() const
  67 {
  68         return is_main_view_;
  69 }
  70
  71 void ViewBase::reset_view_state()
  72 {
  73         current_segment_ = 0;
  74 }
  75
  76 Session& ViewBase::session()
  77 {
  78         return session_;
  79 }
  80
  81 const Session& ViewBase::session() const
  82 {
  83         return session_;
  84 }
  85
  86 void ViewBase::clear_signals()
  87 {
  88         clear_signalbases();
  89 }
  90
  91 unordered_set< shared_ptr<data::SignalBase> > ViewBase::signalbases() const
  92 {
  93         return signalbases_;
  94 }
  95
  96 void ViewBase::clear_signalbases()
  97 {
  98         for (const shared_ptr<data::SignalBase>& signalbase : signalbases_) {
  99                 disconnect(signalbase.get(), SIGNAL(samples_cleared()),
 100                         this, SLOT(on_data_updated()));
 101                 disconnect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
 102                         this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
 103         }
 104
 105         signalbases_.clear();
 106 }
 107
 108 void ViewBase::add_signalbase(const shared_ptr<data::SignalBase> signalbase)
 109 {
 110         signalbases_.insert(signalbase);
 111
 112         connect(signalbase.get(), SIGNAL(samples_cleared()),
 113                 this, SLOT(on_data_updated()));
 114         connect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
 115                 this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
 116 }
 117
 118 #ifdef ENABLE_DECODE
 119 void ViewBase::clear_decode_signals()
 120 {
 121         decode_signals_.clear();
 122 }
 123
 124 void ViewBase::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
 125 {
 126         decode_signals_.insert(signal);
 127 }
 128
 129 void ViewBase::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
 130 {
 131         decode_signals_.erase(signal);
 132 }
 133 #endif
 134
 135 void ViewBase::save_settings(QSettings &settings) const
 136 {
 137         (void)settings;
 138 }
 139
 140 void ViewBase::restore_settings(QSettings &settings)
 141 {
 142         (void)settings;
 143 }
 144
 145 void ViewBase::trigger_event(int segment_id, util::Timestamp location)
 146 {
 147         (void)segment_id;
 148         (void)location;
 149 }
 150
 151 void ViewBase::signals_changed()
 152 {
 153 }
 154
 155 void ViewBase::on_new_segment(int new_segment_id)
 156 {
 157         (void)new_segment_id;
 158 }
 159
 160 void ViewBase::on_segment_completed(int new_segment_id)
 161 {
 162         (void)new_segment_id;
 163 }
 164
 165 void ViewBase::capture_state_updated(int state)
 166 {
 167         (void)state;
 168 }
 169
 170 void ViewBase::perform_delayed_view_update()
 171 {
 172 }
 173
 174 void ViewBase::on_samples_added(uint64_t segment_id, uint64_t start_sample,
 175         uint64_t end_sample)
 176 {
 177         (void)start_sample;
 178         (void)end_sample;
 179
 180         if (segment_id != current_segment_)
 181                 return;
 182
 183         if (!delayed_view_updater_.isActive())
 184                 delayed_view_updater_.start();
 185 }
 186
 187 void ViewBase::on_data_updated()
 188 {
 189         if (!delayed_view_updater_.isActive())
 190                 delayed_view_updater_.start();
 191 }
 192
 193 }  // namespace views
 194 } // namespace pv