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         ruler_shift_ = 0;
  61         current_segment_ = 0;
  62 }
  63
  64 Session& ViewBase::session()
  65 {
  66         return session_;
  67 }
  68
  69 const Session& ViewBase::session() const
  70 {
  71         return session_;
  72 }
  73
  74 void ViewBase::clear_signals()
  75 {
  76 }
  77
  78 unordered_set< shared_ptr<data::SignalBase> > ViewBase::signalbases() const
  79 {
  80         return signalbases_;
  81 }
  82
  83 void ViewBase::clear_signalbases()
  84 {
  85         for (shared_ptr<data::SignalBase> signalbase : signalbases_) {
  86                 disconnect(signalbase.get(), SIGNAL(samples_cleared()),
  87                         this, SLOT(on_data_updated()));
  88                 disconnect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
  89                         this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
  90         }
  91
  92         signalbases_.clear();
  93 }
  94
  95 void ViewBase::add_signalbase(const shared_ptr<data::SignalBase> signalbase)
  96 {
  97         signalbases_.insert(signalbase);
  98
  99         connect(signalbase.get(), SIGNAL(samples_cleared()),
 100                 this, SLOT(on_data_updated()));
 101         connect(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 #ifdef ENABLE_DECODE
 106 void ViewBase::clear_decode_signals()
 107 {
 108 }
 109
 110 void ViewBase::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
 111 {
 112         (void)signal;
 113 }
 114
 115 void ViewBase::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
 116 {
 117         (void)signal;
 118 }
 119 #endif
 120
 121 void ViewBase::save_settings(QSettings &settings) const
 122 {
 123         (void)settings;
 124 }
 125
 126 void ViewBase::restore_settings(QSettings &settings)
 127 {
 128         (void)settings;
 129 }
 130
 131 void ViewBase::trigger_event(int segment_id, util::Timestamp location)
 132 {
 133         (void)segment_id;
 134         (void)location;
 135 }
 136
 137 void ViewBase::signals_changed()
 138 {
 139 }
 140
 141 void ViewBase::on_new_segment(int new_segment_id)
 142 {
 143         (void)new_segment_id;
 144 }
 145
 146 void ViewBase::on_segment_completed(int new_segment_id)
 147 {
 148         (void)new_segment_id;
 149 }
 150
 151 void ViewBase::capture_state_updated(int state)
 152 {
 153         (void)state;
 154 }
 155
 156 void ViewBase::perform_delayed_view_update()
 157 {
 158 }
 159
 160 void ViewBase::on_samples_added(uint64_t segment_id, uint64_t start_sample,
 161         uint64_t end_sample)
 162 {
 163         (void)start_sample;
 164         (void)end_sample;
 165
 166         if (segment_id != current_segment_)
 167                 return;
 168
 169         if (!delayed_view_updater_.isActive())
 170                 delayed_view_updater_.start();
 171 }
 172
 173 void ViewBase::on_data_updated()
 174 {
 175         if (!delayed_view_updater_.isActive())
 176                 delayed_view_updater_.start();
 177 }
 178
 179 }  // namespace views
 180 } // namespace pv