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 void ViewBase::reset_view_state()
  67 {
  68         current_segment_ = 0;
  69 }
  70
  71 Session& ViewBase::session()
  72 {
  73         return session_;
  74 }
  75
  76 const Session& ViewBase::session() const
  77 {
  78         return session_;
  79 }
  80
  81 void ViewBase::clear_signals()
  82 {
  83 }
  84
  85 unordered_set< shared_ptr<data::SignalBase> > ViewBase::signalbases() const
  86 {
  87         return signalbases_;
  88 }
  89
  90 void ViewBase::clear_signalbases()
  91 {
  92         for (const shared_ptr<data::SignalBase>& signalbase : signalbases_) {
  93                 disconnect(signalbase.get(), SIGNAL(samples_cleared()),
  94                         this, SLOT(on_data_updated()));
  95                 disconnect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
  96                         this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
  97         }
  98
  99         signalbases_.clear();
 100 }
 101
 102 void ViewBase::add_signalbase(const shared_ptr<data::SignalBase> signalbase)
 103 {
 104         signalbases_.insert(signalbase);
 105
 106         connect(signalbase.get(), SIGNAL(samples_cleared()),
 107                 this, SLOT(on_data_updated()));
 108         connect(signalbase.get(), SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
 109                 this, SLOT(on_samples_added(uint64_t, uint64_t, uint64_t)));
 110 }
 111
 112 #ifdef ENABLE_DECODE
 113 void ViewBase::clear_decode_signals()
 114 {
 115 }
 116
 117 void ViewBase::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
 118 {
 119         (void)signal;
 120 }
 121
 122 void ViewBase::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
 123 {
 124         (void)signal;
 125 }
 126 #endif
 127
 128 void ViewBase::save_settings(QSettings &settings) const
 129 {
 130         (void)settings;
 131 }
 132
 133 void ViewBase::restore_settings(QSettings &settings)
 134 {
 135         (void)settings;
 136 }
 137
 138 void ViewBase::trigger_event(int segment_id, util::Timestamp location)
 139 {
 140         (void)segment_id;
 141         (void)location;
 142 }
 143
 144 void ViewBase::signals_changed()
 145 {
 146 }
 147
 148 void ViewBase::on_new_segment(int new_segment_id)
 149 {
 150         (void)new_segment_id;
 151 }
 152
 153 void ViewBase::on_segment_completed(int new_segment_id)
 154 {
 155         (void)new_segment_id;
 156 }
 157
 158 void ViewBase::capture_state_updated(int state)
 159 {
 160         (void)state;
 161 }
 162
 163 void ViewBase::perform_delayed_view_update()
 164 {
 165 }
 166
 167 void ViewBase::on_samples_added(uint64_t segment_id, uint64_t start_sample,
 168         uint64_t end_sample)
 169 {
 170         (void)start_sample;
 171         (void)end_sample;
 172
 173         if (segment_id != current_segment_)
 174                 return;
 175
 176         if (!delayed_view_updater_.isActive())
 177                 delayed_view_updater_.start();
 178 }
 179
 180 void ViewBase::on_data_updated()
 181 {
 182         if (!delayed_view_updater_.isActive())
 183                 delayed_view_updater_.start();
 184 }
 185
 186 }  // namespace views
 187 } // namespace pv