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 <QCheckBox>
  24 #include <QFormLayout>
  25 #include <QGridLayout>
  26 #include <QLabel>
  27
  28 #include "channels.hpp"
  29
  30 #include <pv/binding/device.hpp>
  31 #include <pv/devices/device.hpp>
  32 #include <pv/session.hpp>
  33 #include <pv/view/signal.hpp>
  34
  35 #include <libsigrokcxx/libsigrokcxx.hpp>
  36
  37 using namespace Qt;
  38
  39 using boost::shared_lock;
  40 using boost::shared_mutex;
  41 using std::lock_guard;
  42 using std::map;
  43 using std::mutex;
  44 using std::set;
  45 using std::shared_ptr;
  46 using std::unordered_set;
  47 using std::vector;
  48
  49 using sigrok::Channel;
  50 using sigrok::ChannelGroup;
  51 using sigrok::Device;
  52
  53 using pv::view::Signal;
  54
  55 namespace pv {
  56 namespace popups {
  57
  58 Channels::Channels(Session &session, QWidget *parent) :
  59         Popup(parent),
  60         session_(session),
  61         updating_channels_(false),
  62         enable_all_channels_(tr("Enable All"), this),
  63         disable_all_channels_(tr("Disable All"), this),
  64         check_box_mapper_(this)
  65 {
  66         // Create the layout
  67         setLayout(&layout_);
  68
  69         const shared_ptr<sigrok::Device> device = session_.device()->device();
  70         assert(device);
  71
  72         // Collect a set of signals
  73         map<shared_ptr<Channel>, shared_ptr<Signal> > signal_map;
  74
  75         shared_lock<shared_mutex> lock(session_.signals_mutex());
  76         const unordered_set< shared_ptr<Signal> > &sigs(session_.signals());
  77
  78         for (const shared_ptr<Signal> &sig : sigs)
  79                 signal_map[sig->channel()] = sig;
  80
  81         // Populate channel groups
  82         for (auto entry : device->channel_groups())
  83         {
  84                 shared_ptr<ChannelGroup> group = entry.second;
  85                 // Make a set of signals, and removed this signals from the
  86                 // signal map.
  87                 vector< shared_ptr<Signal> > group_sigs;
  88                 for (auto channel : group->channels())
  89                 {
  90                         const auto iter = signal_map.find(channel);
  91
  92                         if (iter == signal_map.end())
  93                                 break;
  94
  95                         group_sigs.push_back((*iter).second);
  96                         signal_map.erase(iter);
  97                 }
  98
  99                 populate_group(group, group_sigs);
 100         }
 101
 102         // Make a vector of the remaining channels
 103         vector< shared_ptr<Signal> > global_sigs;
 104         for (auto channel : device->channels())
 105         {
 106                 const map<shared_ptr<Channel>, shared_ptr<Signal> >::
 107                         const_iterator iter = signal_map.find(channel);
 108                 if (iter != signal_map.end())
 109                         global_sigs.push_back((*iter).second);
 110         }
 111
 112         // Create a group
 113         populate_group(NULL, global_sigs);
 114
 115         // Create the enable/disable all buttons
 116         connect(&enable_all_channels_, SIGNAL(clicked()),
 117                 this, SLOT(enable_all_channels()));
 118         connect(&disable_all_channels_, SIGNAL(clicked()),
 119                 this, SLOT(disable_all_channels()));
 120
 121         enable_all_channels_.setFlat(true);
 122         disable_all_channels_.setFlat(true);
 123
 124         buttons_bar_.addWidget(&enable_all_channels_);
 125         buttons_bar_.addWidget(&disable_all_channels_);
 126         buttons_bar_.addStretch(1);
 127
 128         layout_.addRow(&buttons_bar_);
 129
 130         // Connect the check-box signal mapper
 131         connect(&check_box_mapper_, SIGNAL(mapped(QWidget*)),
 132                 this, SLOT(on_channel_checked(QWidget*)));
 133 }
 134
 135 void Channels::set_all_channels(bool set)
 136 {
 137         updating_channels_ = true;
 138
 139         for (map<QCheckBox*, shared_ptr<Signal> >::const_iterator i =
 140                 check_box_signal_map_.begin();
 141                 i != check_box_signal_map_.end(); i++)
 142         {
 143                 const shared_ptr<Signal> sig = (*i).second;
 144                 assert(sig);
 145
 146                 sig->enable(set);
 147                 (*i).first->setChecked(set);
 148         }
 149
 150         updating_channels_ = false;
 151 }
 152
 153 void Channels::populate_group(shared_ptr<ChannelGroup> group,
 154         const vector< shared_ptr<pv::view::Signal> > sigs)
 155 {
 156         using pv::binding::Device;
 157
 158         // Only bind options if this is a group. We don't do it for general
 159         // options, because these properties are shown in the device config
 160         // popup.
 161         shared_ptr<Device> binding;
 162         if (group)
 163                 binding = shared_ptr<Device>(new Device(group));
 164
 165         // Create a title if the group is going to have any content
 166         if ((!sigs.empty() || (binding && !binding->properties().empty())) &&
 167                 group)
 168                 layout_.addRow(new QLabel(
 169                         QString("<h3>%1</h3>").arg(group->name().c_str())));
 170
 171         // Create the channel group grid
 172         QGridLayout *const channel_grid =
 173                 create_channel_group_grid(sigs);
 174         layout_.addRow(channel_grid);
 175
 176         // Create the channel group options
 177         if (binding)
 178         {
 179                 binding->add_properties_to_form(&layout_, true);
 180                 group_bindings_.push_back(binding);
 181         }
 182 }
 183
 184 QGridLayout* Channels::create_channel_group_grid(
 185         const vector< shared_ptr<pv::view::Signal> > sigs)
 186 {
 187         int row = 0, col = 0;
 188         QGridLayout *const grid = new QGridLayout();
 189
 190         for (const shared_ptr<pv::view::Signal>& sig : sigs)
 191         {
 192                 assert(sig);
 193
 194                 QCheckBox *const checkbox = new QCheckBox(sig->name());
 195                 check_box_mapper_.setMapping(checkbox, checkbox);
 196                 connect(checkbox, SIGNAL(toggled(bool)),
 197                         &check_box_mapper_, SLOT(map()));
 198
 199                 grid->addWidget(checkbox, row, col);
 200
 201                 check_box_signal_map_[checkbox] = sig;
 202
 203                 if(++col >= 8)
 204                         col = 0, row++;
 205         }
 206
 207         return grid;
 208 }
 209
 210 void Channels::showEvent(QShowEvent *e)
 211 {
 212         pv::widgets::Popup::showEvent(e);
 213
 214         updating_channels_ = true;
 215
 216         for (map<QCheckBox*, shared_ptr<Signal> >::const_iterator i =
 217                 check_box_signal_map_.begin();
 218                 i != check_box_signal_map_.end(); i++)
 219         {
 220                 const shared_ptr<Signal> sig = (*i).second;
 221                 assert(sig);
 222
 223                 (*i).first->setChecked(sig->enabled());
 224         }
 225
 226         updating_channels_ = false;
 227 }
 228
 229 void Channels::on_channel_checked(QWidget *widget)
 230 {
 231         if (updating_channels_)
 232                 return;
 233
 234         QCheckBox *const check_box = (QCheckBox*)widget;
 235         assert(check_box);
 236
 237         // Look up the signal of this check-box
 238         map< QCheckBox*, shared_ptr<Signal> >::const_iterator iter =
 239                 check_box_signal_map_.find((QCheckBox*)check_box);
 240         assert(iter != check_box_signal_map_.end());
 241
 242         const shared_ptr<pv::view::Signal> s = (*iter).second;
 243         assert(s);
 244
 245         s->enable(check_box->isChecked());
 246 }
 247
 248 void Channels::enable_all_channels()
 249 {
 250         set_all_channels(true);
 251 }
 252
 253 void Channels::disable_all_channels()
 254 {
 255         set_all_channels(false);
 256 }
 257
 258 } // popups
 259 } // pv