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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <map>
  22
  23 #include <boost/thread/locks.hpp>
  24 #include <boost/thread/shared_mutex.hpp>
  25
  26 #include <QCheckBox>
  27 #include <QFormLayout>
  28 #include <QGridLayout>
  29 #include <QLabel>
  30
  31 #include "channels.hpp"
  32
  33 #include <pv/binding/device.hpp>
  34 #include <pv/devices/device.hpp>
  35 #include <pv/session.hpp>
  36 #include <pv/view/signal.hpp>
  37
  38 #include <libsigrokcxx/libsigrokcxx.hpp>
  39
  40 using namespace Qt;
  41
  42 using boost::shared_lock;
  43 using boost::shared_mutex;
  44 using std::lock_guard;
  45 using std::map;
  46 using std::mutex;
  47 using std::set;
  48 using std::shared_ptr;
  49 using std::unordered_set;
  50 using std::vector;
  51
  52 using sigrok::Channel;
  53 using sigrok::ChannelGroup;
  54 using sigrok::Device;
  55
  56 using pv::view::Signal;
  57
  58 namespace pv {
  59 namespace popups {
  60
  61 Channels::Channels(Session &session, QWidget *parent) :
  62         Popup(parent),
  63         session_(session),
  64         updating_channels_(false),
  65         enable_all_channels_(tr("Enable All"), this),
  66         disable_all_channels_(tr("Disable All"), this),
  67         check_box_mapper_(this)
  68 {
  69         // Create the layout
  70         setLayout(&layout_);
  71
  72         const shared_ptr<sigrok::Device> device = session_.device()->device();
  73         assert(device);
  74
  75         // Collect a set of signals
  76         map<shared_ptr<Channel>, shared_ptr<Signal> > signal_map;
  77
  78         shared_lock<shared_mutex> lock(session_.signals_mutex());
  79         const unordered_set< shared_ptr<Signal> > &sigs(session_.signals());
  80
  81         for (const shared_ptr<Signal> &sig : sigs)
  82                 signal_map[sig->channel()] = sig;
  83
  84         // Populate channel groups
  85         for (auto entry : device->channel_groups())
  86         {
  87                 shared_ptr<ChannelGroup> group = entry.second;
  88                 // Make a set of signals, and removed this signals from the
  89                 // signal map.
  90                 vector< shared_ptr<Signal> > group_sigs;
  91                 for (auto channel : group->channels())
  92                 {
  93                         const auto iter = signal_map.find(channel);
  94
  95                         if (iter == signal_map.end())
  96                                 break;
  97
  98                         group_sigs.push_back((*iter).second);
  99                         signal_map.erase(iter);
 100                 }
 101
 102                 populate_group(group, group_sigs);
 103         }
 104
 105         // Make a vector of the remaining channels
 106         vector< shared_ptr<Signal> > global_sigs;
 107         for (auto channel : device->channels())
 108         {
 109                 const map<shared_ptr<Channel>, shared_ptr<Signal> >::
 110                         const_iterator iter = signal_map.find(channel);
 111                 if (iter != signal_map.end())
 112                         global_sigs.push_back((*iter).second);
 113         }
 114
 115         // Create a group
 116         populate_group(nullptr, global_sigs);
 117
 118         // Create the enable/disable all buttons
 119         connect(&enable_all_channels_, SIGNAL(clicked()),
 120                 this, SLOT(enable_all_channels()));
 121         connect(&disable_all_channels_, SIGNAL(clicked()),
 122                 this, SLOT(disable_all_channels()));
 123
 124         enable_all_channels_.setFlat(true);
 125         disable_all_channels_.setFlat(true);
 126
 127         buttons_bar_.addWidget(&enable_all_channels_);
 128         buttons_bar_.addWidget(&disable_all_channels_);
 129         buttons_bar_.addStretch(1);
 130
 131         layout_.addRow(&buttons_bar_);
 132
 133         // Connect the check-box signal mapper
 134         connect(&check_box_mapper_, SIGNAL(mapped(QWidget*)),
 135                 this, SLOT(on_channel_checked(QWidget*)));
 136 }
 137
 138 void Channels::set_all_channels(bool set)
 139 {
 140         updating_channels_ = true;
 141
 142         for (map<QCheckBox*, shared_ptr<Signal> >::const_iterator i =
 143                 check_box_signal_map_.begin();
 144                 i != check_box_signal_map_.end(); i++)
 145         {
 146                 const shared_ptr<Signal> sig = (*i).second;
 147                 assert(sig);
 148
 149                 sig->enable(set);
 150                 (*i).first->setChecked(set);
 151         }
 152
 153         updating_channels_ = false;
 154 }
 155
 156 void Channels::populate_group(shared_ptr<ChannelGroup> group,
 157         const vector< shared_ptr<pv::view::Signal> > sigs)
 158 {
 159         using pv::binding::Device;
 160
 161         // Only bind options if this is a group. We don't do it for general
 162         // options, because these properties are shown in the device config
 163         // popup.
 164         shared_ptr<Device> binding;
 165         if (group)
 166                 binding = shared_ptr<Device>(new Device(group));
 167
 168         // Create a title if the group is going to have any content
 169         if ((!sigs.empty() || (binding && !binding->properties().empty())) &&
 170                 group)
 171                 layout_.addRow(new QLabel(
 172                         QString("<h3>%1</h3>").arg(group->name().c_str())));
 173
 174         // Create the channel group grid
 175         QGridLayout *const channel_grid =
 176                 create_channel_group_grid(sigs);
 177         layout_.addRow(channel_grid);
 178
 179         // Create the channel group options
 180         if (binding)
 181         {
 182                 binding->add_properties_to_form(&layout_, true);
 183                 group_bindings_.push_back(binding);
 184         }
 185 }
 186
 187 QGridLayout* Channels::create_channel_group_grid(
 188         const vector< shared_ptr<pv::view::Signal> > sigs)
 189 {
 190         int row = 0, col = 0;
 191         QGridLayout *const grid = new QGridLayout();
 192
 193         for (const shared_ptr<pv::view::Signal>& sig : sigs)
 194         {
 195                 assert(sig);
 196
 197                 QCheckBox *const checkbox = new QCheckBox(sig->name());
 198                 check_box_mapper_.setMapping(checkbox, checkbox);
 199                 connect(checkbox, SIGNAL(toggled(bool)),
 200                         &check_box_mapper_, SLOT(map()));
 201
 202                 grid->addWidget(checkbox, row, col);
 203
 204                 check_box_signal_map_[checkbox] = sig;
 205
 206                 if (++col >= 8)
 207                         col = 0, row++;
 208         }
 209
 210         return grid;
 211 }
 212
 213 void Channels::showEvent(QShowEvent *e)
 214 {
 215         pv::widgets::Popup::showEvent(e);
 216
 217         updating_channels_ = true;
 218
 219         for (map<QCheckBox*, shared_ptr<Signal> >::const_iterator i =
 220                 check_box_signal_map_.begin();
 221                 i != check_box_signal_map_.end(); i++)
 222         {
 223                 const shared_ptr<Signal> 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<Signal> >::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<pv::view::Signal> s = (*iter).second;
 246         assert(s);
 247
 248         s->enable(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