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 #ifdef _WIN32
  24 // Windows: Avoid boost/thread namespace pollution (which includes windows.h).
  25 #define NOGDI
  26 #define NORESOURCE
  27 #endif
  28 #include <boost/thread/locks.hpp>
  29 #include <boost/thread/shared_mutex.hpp>
  30
  31 #include <QCheckBox>
  32 #include <QFormLayout>
  33 #include <QGridLayout>
  34 #include <QLabel>
  35
  36 #include "channels.hpp"
  37
  38 #include <pv/binding/device.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 sigrok::Channel;
  58 using sigrok::ChannelGroup;
  59 using sigrok::Device;
  60
  61 using pv::view::Signal;
  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<Signal> > signal_map;
  82
  83         const unordered_set< shared_ptr<Signal> > sigs(session_.signals());
  84
  85         for (const shared_ptr<Signal> &sig : sigs)
  86                 signal_map[sig->channel()] = sig;
  87
  88         // Populate channel groups
  89         for (auto entry : device->channel_groups())
  90         {
  91                 shared_ptr<ChannelGroup> group = entry.second;
  92                 // Make a set of signals, and removed this signals from the
  93                 // signal map.
  94                 vector< shared_ptr<Signal> > group_sigs;
  95                 for (auto channel : group->channels())
  96                 {
  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<Signal> > global_sigs;
 111         for (auto channel : device->channels())
 112         {
 113                 const map<shared_ptr<Channel>, shared_ptr<Signal> >::
 114                         const_iterator iter = signal_map.find(channel);
 115                 if (iter != signal_map.end())
 116                         global_sigs.push_back((*iter).second);
 117         }
 118
 119         // Create a group
 120         populate_group(nullptr, global_sigs);
 121
 122         // Create the enable/disable all buttons
 123         connect(&enable_all_channels_, SIGNAL(clicked()),
 124                 this, SLOT(enable_all_channels()));
 125         connect(&disable_all_channels_, SIGNAL(clicked()),
 126                 this, SLOT(disable_all_channels()));
 127
 128         enable_all_channels_.setFlat(true);
 129         disable_all_channels_.setFlat(true);
 130
 131         buttons_bar_.addWidget(&enable_all_channels_);
 132         buttons_bar_.addWidget(&disable_all_channels_);
 133         buttons_bar_.addStretch(1);
 134
 135         layout_.addRow(&buttons_bar_);
 136
 137         // Connect the check-box signal mapper
 138         connect(&check_box_mapper_, SIGNAL(mapped(QWidget*)),
 139                 this, SLOT(on_channel_checked(QWidget*)));
 140 }
 141
 142 void Channels::set_all_channels(bool set)
 143 {
 144         updating_channels_ = true;
 145
 146         for (map<QCheckBox*, shared_ptr<Signal> >::const_iterator i =
 147                 check_box_signal_map_.begin();
 148                 i != check_box_signal_map_.end(); i++)
 149         {
 150                 const shared_ptr<Signal> sig = (*i).second;
 151                 assert(sig);
 152
 153                 sig->enable(set);
 154                 (*i).first->setChecked(set);
 155         }
 156
 157         updating_channels_ = false;
 158 }
 159
 160 void Channels::populate_group(shared_ptr<ChannelGroup> group,
 161         const vector< shared_ptr<pv::view::Signal> > sigs)
 162 {
 163         using pv::binding::Device;
 164
 165         // Only bind options if this is a group. We don't do it for general
 166         // options, because these properties are shown in the device config
 167         // popup.
 168         shared_ptr<Device> binding;
 169         if (group)
 170                 binding = shared_ptr<Device>(new Device(group));
 171
 172         // Create a title if the group is going to have any content
 173         if ((!sigs.empty() || (binding && !binding->properties().empty())) &&
 174                 group)
 175                 layout_.addRow(new QLabel(
 176                         QString("<h3>%1</h3>").arg(group->name().c_str())));
 177
 178         // Create the channel group grid
 179         QGridLayout *const channel_grid =
 180                 create_channel_group_grid(sigs);
 181         layout_.addRow(channel_grid);
 182
 183         // Create the channel group options
 184         if (binding)
 185         {
 186                 binding->add_properties_to_form(&layout_, true);
 187                 group_bindings_.push_back(binding);
 188         }
 189 }
 190
 191 QGridLayout* Channels::create_channel_group_grid(
 192         const vector< shared_ptr<pv::view::Signal> > sigs)
 193 {
 194         int row = 0, col = 0;
 195         QGridLayout *const grid = new QGridLayout();
 196
 197         for (const shared_ptr<pv::view::Signal>& sig : sigs)
 198         {
 199                 assert(sig);
 200
 201                 QCheckBox *const checkbox = new QCheckBox(sig->name());
 202                 check_box_mapper_.setMapping(checkbox, checkbox);
 203                 connect(checkbox, SIGNAL(toggled(bool)),
 204                         &check_box_mapper_, SLOT(map()));
 205
 206                 grid->addWidget(checkbox, row, col);
 207
 208                 check_box_signal_map_[checkbox] = sig;
 209
 210                 if (++col >= 8)
 211                         col = 0, row++;
 212         }
 213
 214         return grid;
 215 }
 216
 217 void Channels::showEvent(QShowEvent *e)
 218 {
 219         pv::widgets::Popup::showEvent(e);
 220
 221         updating_channels_ = true;
 222
 223         for (map<QCheckBox*, shared_ptr<Signal> >::const_iterator i =
 224                 check_box_signal_map_.begin();
 225                 i != check_box_signal_map_.end(); i++)
 226         {
 227                 const shared_ptr<Signal> sig = (*i).second;
 228                 assert(sig);
 229
 230                 (*i).first->setChecked(sig->enabled());
 231         }
 232
 233         updating_channels_ = false;
 234 }
 235
 236 void Channels::on_channel_checked(QWidget *widget)
 237 {
 238         if (updating_channels_)
 239                 return;
 240
 241         QCheckBox *const check_box = (QCheckBox*)widget;
 242         assert(check_box);
 243
 244         // Look up the signal of this check-box
 245         map< QCheckBox*, shared_ptr<Signal> >::const_iterator iter =
 246                 check_box_signal_map_.find((QCheckBox*)check_box);
 247         assert(iter != check_box_signal_map_.end());
 248
 249         const shared_ptr<pv::view::Signal> s = (*iter).second;
 250         assert(s);
 251
 252         s->enable(check_box->isChecked());
 253 }
 254
 255 void Channels::enable_all_channels()
 256 {
 257         set_all_channels(true);
 258 }
 259
 260 void Channels::disable_all_channels()
 261 {
 262         set_all_channels(false);
 263 }
 264
 265 } // popups
 266 } // pv