pv/popups/channels.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <map>
  21
  22 #ifdef _WIN32
  23 // Windows: Avoid boost/thread namespace pollution (which includes windows.h).
  24 #define NOGDI
  25 #define NORESOURCE
  26 #endif
  27 #include <boost/thread/locks.hpp>
  28 #include <boost/thread/shared_mutex.hpp>
  29
  30 #include <QCheckBox>
  31 #include <QFormLayout>
  32 #include <QGridLayout>
  33 #include <QLabel>
  34
  35 #include "channels.hpp"
  36
  37 #include <pv/binding/device.hpp>
  38 #include <pv/data/signalbase.hpp>
  39 #include <pv/devices/device.hpp>
  40 #include <pv/session.hpp>
  41 #include <pv/view/signal.hpp>
  42
  43 #include <libsigrokcxx/libsigrokcxx.hpp>
  44
  45 using namespace Qt;
  46
  47 using boost::shared_lock;
  48 using boost::shared_mutex;
  49 using std::lock_guard;
  50 using std::map;
  51 using std::mutex;
  52 using std::set;
  53 using std::shared_ptr;
  54 using std::unordered_set;
  55 using std::vector;
  56
  57 using pv::data::SignalBase;
  58
  59 using sigrok::Channel;
  60 using sigrok::ChannelGroup;
  61 using sigrok::Device;
  62
  63 namespace pv {
  64 namespace popups {
  65
  66 Channels::Channels(Session &session, QWidget *parent) :
  67         Popup(parent),
  68         session_(session),
  69         updating_channels_(false),
  70         enable_all_channels_(tr("Enable All"), this),
  71         disable_all_channels_(tr("Disable All"), this),
  72         check_box_mapper_(this)
  73 {
  74         // Create the layout
  75         setLayout(&layout_);
  76
  77         const shared_ptr<sigrok::Device> device = session_.device()->device();
  78         assert(device);
  79
  80         // Collect a set of signals
  81         map<shared_ptr<Channel>, shared_ptr<SignalBase> > signal_map;
  82
  83         unordered_set< shared_ptr<SignalBase> > sigs;
  84         for (const shared_ptr<data::SignalBase> b : session_.signalbases())
  85                 sigs.insert(b);
  86
  87         for (const shared_ptr<SignalBase> &sig : sigs)
  88                 signal_map[sig->channel()] = sig;
  89
  90         // Populate channel groups
  91         for (auto entry : device->channel_groups()) {
  92                 shared_ptr<ChannelGroup> group = entry.second;
  93                 // Make a set of signals, and removed this signals from the
  94                 // signal map.
  95                 vector< shared_ptr<SignalBase> > group_sigs;
  96                 for (auto channel : group->channels()) {
  97                         const auto iter = signal_map.find(channel);
  98
  99                         if (iter == signal_map.end())
 100                                 break;
 101
 102                         group_sigs.push_back((*iter).second);
 103                         signal_map.erase(iter);
 104                 }
 105
 106                 populate_group(group, group_sigs);
 107         }
 108
 109         // Make a vector of the remaining channels
 110         vector< shared_ptr<SignalBase> > global_sigs;
 111         for (auto channel : device->channels()) {
 112                 const map<shared_ptr<Channel>, shared_ptr<SignalBase> >::
 113                         const_iterator iter = signal_map.find(channel);
 114                 if (iter != signal_map.end())
 115                         global_sigs.push_back((*iter).second);
 116         }
 117
 118         // Create a group
 119         populate_group(nullptr, global_sigs);
 120
 121         // Create the enable/disable all buttons
 122         connect(&enable_all_channels_, SIGNAL(clicked()),
 123                 this, SLOT(enable_all_channels()));
 124         connect(&disable_all_channels_, SIGNAL(clicked()),
 125                 this, SLOT(disable_all_channels()));
 126
 127         enable_all_channels_.setFlat(true);
 128         disable_all_channels_.setFlat(true);
 129
 130         buttons_bar_.addWidget(&enable_all_channels_);
 131         buttons_bar_.addWidget(&disable_all_channels_);
 132         buttons_bar_.addStretch(1);
 133
 134         layout_.addRow(&buttons_bar_);
 135
 136         // Connect the check-box signal mapper
 137         connect(&check_box_mapper_, SIGNAL(mapped(QWidget*)),
 138                 this, SLOT(on_channel_checked(QWidget*)));
 139 }
 140
 141 void Channels::set_all_channels(bool set)
 142 {
 143         updating_channels_ = true;
 144
 145         for (map<QCheckBox*, shared_ptr<SignalBase> >::const_iterator i =
 146                         check_box_signal_map_.begin();
 147                         i != check_box_signal_map_.end(); i++) {
 148                 const shared_ptr<SignalBase> sig = (*i).second;
 149                 assert(sig);
 150
 151                 sig->set_enabled(set);
 152                 (*i).first->setChecked(set);
 153         }
 154
 155         updating_channels_ = false;
 156 }
 157
 158 void Channels::populate_group(shared_ptr<ChannelGroup> group,
 159         const vector< shared_ptr<SignalBase> > sigs)
 160 {
 161         using pv::binding::Device;
 162
 163         // Only bind options if this is a group. We don't do it for general
 164         // options, because these properties are shown in the device config
 165         // popup.
 166         shared_ptr<Device> binding;
 167         if (group)
 168                 binding = shared_ptr<Device>(new Device(group));
 169
 170         // Create a title if the group is going to have any content
 171         if ((!sigs.empty() || (binding && !binding->properties().empty())) &&
 172                 group)
 173                 layout_.addRow(new QLabel(
 174                         QString("<h3>%1</h3>").arg(group->name().c_str())));
 175
 176         // Create the channel group grid
 177         QGridLayout *const channel_grid =
 178                 create_channel_group_grid(sigs);
 179         layout_.addRow(channel_grid);
 180
 181         // Create the channel group options
 182         if (binding)
 183         {
 184                 binding->add_properties_to_form(&layout_, true);
 185                 group_bindings_.push_back(binding);
 186         }
 187 }
 188
 189 QGridLayout* Channels::create_channel_group_grid(
 190         const vector< shared_ptr<SignalBase> > sigs)
 191 {
 192         int row = 0, col = 0;
 193         QGridLayout *const grid = new QGridLayout();
 194
 195         for (const shared_ptr<SignalBase>& sig : sigs) {
 196                 assert(sig);
 197
 198                 QCheckBox *const checkbox = new QCheckBox(sig->name());
 199                 check_box_mapper_.setMapping(checkbox, checkbox);
 200                 connect(checkbox, SIGNAL(toggled(bool)),
 201                         &check_box_mapper_, SLOT(map()));
 202
 203                 grid->addWidget(checkbox, row, col);
 204
 205                 check_box_signal_map_[checkbox] = sig;
 206
 207                 if (++col >= 8)
 208                         col = 0, row++;
 209         }
 210
 211         return grid;
 212 }
 213
 214 void Channels::showEvent(QShowEvent *event)
 215 {
 216         pv::widgets::Popup::showEvent(event);
 217
 218         updating_channels_ = true;
 219
 220         for (map<QCheckBox*, shared_ptr<SignalBase> >::const_iterator i =
 221                         check_box_signal_map_.begin();
 222                         i != check_box_signal_map_.end(); i++) {
 223                 const shared_ptr<SignalBase> sig = (*i).second;
 224                 assert(sig);
 225
 226                 (*i).first->setChecked(sig->enabled());
 227         }
 228
 229         updating_channels_ = false;
 230 }
 231
 232 void Channels::on_channel_checked(QWidget *widget)
 233 {
 234         if (updating_channels_)
 235                 return;
 236
 237         QCheckBox *const check_box = (QCheckBox*)widget;
 238         assert(check_box);
 239
 240         // Look up the signal of this check-box
 241         map< QCheckBox*, shared_ptr<SignalBase> >::const_iterator iter =
 242                 check_box_signal_map_.find((QCheckBox*)check_box);
 243         assert(iter != check_box_signal_map_.end());
 244
 245         const shared_ptr<SignalBase> s = (*iter).second;
 246         assert(s);
 247
 248         s->set_enabled(check_box->isChecked());
 249 }
 250
 251 void Channels::enable_all_channels()
 252 {
 253         set_all_channels(true);
 254 }
 255
 256 void Channels::disable_all_channels()
 257 {
 258         set_all_channels(false);
 259 }
 260
 261 } // popups
 262 } // pv