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         "Binary Decoder Output View",
  40         "Tabular Decoder Output View"
  41 #endif
  42 };
  43
  44 const int ViewBase::MaxViewAutoUpdateRate = 25; // No more than 25 Hz
  45
  46 ViewBase::ViewBase(Session &session, bool is_main_view, QMainWindow *parent) :
  47         // Note: Place defaults in ViewBase::reset_view_state(), not here
  48         QWidget(parent),
  49         session_(session),
  50         is_main_view_(is_main_view)
  51 {
  52         (void)parent;
  53
  54         connect(&session_, SIGNAL(signals_changed()),
  55                 this, SLOT(signals_changed()));
  56         connect(&session_, SIGNAL(capture_state_changed(int)),
  57                 this, SLOT(capture_state_updated(int)));
  58         connect(&session_, SIGNAL(new_segment(int)),
  59                 this, SLOT(on_new_segment(int)));
  60
  61         connect(&delayed_view_updater_, SIGNAL(timeout()),
  62                 this, SLOT(perform_delayed_view_update()));
  63         delayed_view_updater_.setSingleShot(true);
  64         delayed_view_updater_.setInterval(1000 / MaxViewAutoUpdateRate);
  65 }
  66
  67 bool ViewBase::is_main_view() const
  68 {
  69         return is_main_view_;
  70 }
  71
  72 void ViewBase::reset_view_state()
  73 {
  74         current_segment_ = 0;
  75 }
  76
  77 Session& ViewBase::session()
  78 {
  79         return session_;
  80 }
  81
  82 const Session& ViewBase::session() const
  83 {
  84         return session_;
  85 }
  86
  87 vector< shared_ptr<data::SignalBase> > ViewBase::signalbases() const
  88 {
  89         return signalbases_;
  90 }
  91
  92 void ViewBase::clear_signalbases()
  93 {
  94         for (const shared_ptr<data::SignalBase>& signalbase : signalbases_) {
  95                 disconnect(signalbase.get(), SIGNAL(samples_cleared()),
  96                         this, SLOT(on_data_updated()));
  97                 disconnect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
  98                         this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
  99         }
 100
 101         signalbases_.clear();
 102 }
 103
 104 void ViewBase::add_signalbase(const shared_ptr<data::SignalBase> signalbase)
 105 {
 106         signalbases_.push_back(signalbase);
 107
 108         connect(signalbase.get(), SIGNAL(samples_cleared()),
 109                 this, SLOT(on_data_updated()));
 110         connect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
 111                 this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
 112 }
 113
 114 void ViewBase::remove_signalbase(const shared_ptr<data::SignalBase> signalbase)
 115 {
 116         disconnect(signalbase.get(), SIGNAL(samples_cleared()),
 117                 this, SLOT(on_data_updated()));
 118         disconnect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
 119                 this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
 120
 121         signalbases_.erase(std::remove_if(signalbases_.begin(), signalbases_.end(),
 122                 [&](shared_ptr<data::SignalBase> s) { return s == signalbase; }),
 123                 signalbases_.end());
 124 }
 125
 126 #ifdef ENABLE_DECODE
 127 void ViewBase::clear_decode_signals()
 128 {
 129         decode_signals_.clear();
 130 }
 131
 132 void ViewBase::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
 133 {
 134         decode_signals_.push_back(signal);
 135 }
 136
 137 void ViewBase::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
 138 {
 139         decode_signals_.erase(std::remove_if(
 140                 decode_signals_.begin(), decode_signals_.end(),
 141                 [&](shared_ptr<data::DecodeSignal> s) { return s == signal; }),
 142                 decode_signals_.end());
 143 }
 144 #endif
 145
 146 void ViewBase::save_settings(QSettings &settings) const
 147 {
 148         (void)settings;
 149 }
 150
 151 void ViewBase::restore_settings(QSettings &settings)
 152 {
 153         (void)settings;
 154 }
 155
 156 void ViewBase::focus_on_range(uint64_t start_sample, uint64_t end_sample)
 157 {
 158         (void)start_sample;
 159         (void)end_sample;
 160 }
 161
 162 void ViewBase::trigger_event(int segment_id, util::Timestamp location)
 163 {
 164         (void)segment_id;
 165         (void)location;
 166 }
 167
 168 void ViewBase::signals_changed()
 169 {
 170 }
 171
 172 void ViewBase::on_new_segment(int new_segment_id)
 173 {
 174         (void)new_segment_id;
 175 }
 176
 177 void ViewBase::on_segment_completed(int new_segment_id)
 178 {
 179         (void)new_segment_id;
 180 }
 181
 182 void ViewBase::capture_state_updated(int state)
 183 {
 184         (void)state;
 185 }
 186
 187 void ViewBase::perform_delayed_view_update()
 188 {
 189 }
 190
 191 void ViewBase::on_samples_added(uint64_t segment_id, uint64_t start_sample,
 192         uint64_t end_sample)
 193 {
 194         (void)start_sample;
 195         (void)end_sample;
 196
 197         if (segment_id != current_segment_)
 198                 return;
 199
 200         if (!delayed_view_updater_.isActive())
 201                 delayed_view_updater_.start();
 202 }
 203
 204 void ViewBase::on_data_updated()
 205 {
 206         if (!delayed_view_updater_.isActive())
 207                 delayed_view_updater_.start();
 208 }
 209
 210 }  // namespace views
 211 } // namespace pv