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