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 void ViewBase::clear_signals()
  88 {
  89         clear_signalbases();
  90 }
  91
  92 vector< shared_ptr<data::SignalBase> > ViewBase::signalbases() const
  93 {
  94         return signalbases_;
  95 }
  96
  97 void ViewBase::clear_signalbases()
  98 {
  99         for (const shared_ptr<data::SignalBase>& signalbase : signalbases_) {
 100                 disconnect(signalbase.get(), SIGNAL(samples_cleared()),
 101                         this, SLOT(on_data_updated()));
 102                 disconnect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
 103                         this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
 104         }
 105
 106         signalbases_.clear();
 107 }
 108
 109 void ViewBase::add_signalbase(const shared_ptr<data::SignalBase> signalbase)
 110 {
 111         signalbases_.push_back(signalbase);
 112
 113         connect(signalbase.get(), SIGNAL(samples_cleared()),
 114                 this, SLOT(on_data_updated()));
 115         connect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
 116                 this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
 117 }
 118
 119 #ifdef ENABLE_DECODE
 120 void ViewBase::clear_decode_signals()
 121 {
 122         decode_signals_.clear();
 123 }
 124
 125 void ViewBase::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
 126 {
 127         decode_signals_.push_back(signal);
 128 }
 129
 130 void ViewBase::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
 131 {
 132         decode_signals_.erase(std::remove_if(
 133                 decode_signals_.begin(), decode_signals_.end(),
 134                 [&](shared_ptr<data::DecodeSignal> s) { return s == signal; }),
 135                 decode_signals_.end());
 136 }
 137 #endif
 138
 139 void ViewBase::save_settings(QSettings &settings) const
 140 {
 141         (void)settings;
 142 }
 143
 144 void ViewBase::restore_settings(QSettings &settings)
 145 {
 146         (void)settings;
 147 }
 148
 149 void ViewBase::trigger_event(int segment_id, util::Timestamp location)
 150 {
 151         (void)segment_id;
 152         (void)location;
 153 }
 154
 155 void ViewBase::signals_changed()
 156 {
 157 }
 158
 159 void ViewBase::on_new_segment(int new_segment_id)
 160 {
 161         (void)new_segment_id;
 162 }
 163
 164 void ViewBase::on_segment_completed(int new_segment_id)
 165 {
 166         (void)new_segment_id;
 167 }
 168
 169 void ViewBase::capture_state_updated(int state)
 170 {
 171         (void)state;
 172 }
 173
 174 void ViewBase::perform_delayed_view_update()
 175 {
 176 }
 177
 178 void ViewBase::on_samples_added(uint64_t segment_id, uint64_t start_sample,
 179         uint64_t end_sample)
 180 {
 181         (void)start_sample;
 182         (void)end_sample;
 183
 184         if (segment_id != current_segment_)
 185                 return;
 186
 187         if (!delayed_view_updater_.isActive())
 188                 delayed_view_updater_.start();
 189 }
 190
 191 void ViewBase::on_data_updated()
 192 {
 193         if (!delayed_view_updater_.isActive())
 194                 delayed_view_updater_.start();
 195 }
 196
 197 }  // namespace views
 198 } // namespace pv