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::make_shared;
  55 using std::unordered_set;
  56 using std::vector;
  57
  58 using pv::data::SignalBase;
  59
  60 using sigrok::Channel;
  61 using sigrok::ChannelGroup;
  62 using sigrok::Device;
  63
  64 namespace pv {
  65 namespace popups {
  66
  67 Channels::Channels(Session &session, QWidget *parent) :
  68         Popup(parent),
  69         session_(session),
  70         updating_channels_(false),
  71         enable_all_channels_(tr("Enable All"), this),
  72         disable_all_channels_(tr("Disable All"), this),
  73         check_box_mapper_(this)
  74 {
  75         // Create the layout
  76         setLayout(&layout_);
  77
  78         const shared_ptr<sigrok::Device> device = session_.device()->device();
  79         assert(device);
  80
  81         // Collect a set of signals
  82         map<shared_ptr<Channel>, shared_ptr<SignalBase> > signal_map;
  83
  84         unordered_set< shared_ptr<SignalBase> > sigs;
  85         for (const shared_ptr<data::SignalBase> b : session_.signalbases())
  86                 sigs.insert(b);
  87
  88         for (const shared_ptr<SignalBase> &sig : sigs)
  89                 signal_map[sig->channel()] = sig;
  90
  91         // Populate channel groups
  92         for (auto entry : device->channel_groups()) {
  93                 shared_ptr<ChannelGroup> group = entry.second;
  94                 // Make a set of signals, and removed this signals from the
  95                 // signal map.
  96                 vector< shared_ptr<SignalBase> > group_sigs;
  97                 for (auto channel : group->channels()) {
  98                         const auto iter = signal_map.find(channel);
  99
 100                         if (iter == signal_map.end())
 101                                 break;
 102
 103                         group_sigs.push_back((*iter).second);
 104                         signal_map.erase(iter);
 105                 }
 106
 107                 populate_group(group, group_sigs);
 108         }
 109
 110         // Make a vector of the remaining channels
 111         vector< shared_ptr<SignalBase> > global_sigs;
 112         for (auto channel : device->channels()) {
 113                 const map<shared_ptr<Channel>, shared_ptr<SignalBase> >::
 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<SignalBase> >::const_iterator i =
 147                         check_box_signal_map_.begin();
 148                         i != check_box_signal_map_.end(); i++) {
 149                 const shared_ptr<SignalBase> sig = (*i).second;
 150                 assert(sig);
 151
 152                 sig->set_enabled(set);
 153                 (*i).first->setChecked(set);
 154         }
 155
 156         updating_channels_ = false;
 157 }
 158
 159 void Channels::populate_group(shared_ptr<ChannelGroup> group,
 160         const vector< shared_ptr<SignalBase> > sigs)
 161 {
 162         using pv::binding::Device;
 163
 164         // Only bind options if this is a group. We don't do it for general
 165         // options, because these properties are shown in the device config
 166         // popup.
 167         shared_ptr<Device> binding;
 168         if (group)
 169                 binding = make_shared<Device>(group);
 170
 171         // Create a title if the group is going to have any content
 172         if ((!sigs.empty() || (binding && !binding->properties().empty())) &&
 173                 group)
 174                 layout_.addRow(new QLabel(
 175                         QString("<h3>%1</h3>").arg(group->name().c_str())));
 176
 177         // Create the channel group grid
 178         QGridLayout *const channel_grid =
 179                 create_channel_group_grid(sigs);
 180         layout_.addRow(channel_grid);
 181
 182         // Create the channel group options
 183         if (binding)
 184         {
 185                 binding->add_properties_to_form(&layout_, true);
 186                 group_bindings_.push_back(binding);
 187         }
 188 }
 189
 190 QGridLayout* Channels::create_channel_group_grid(
 191         const vector< shared_ptr<SignalBase> > sigs)
 192 {
 193         int row = 0, col = 0;
 194         QGridLayout *const grid = new QGridLayout();
 195
 196         for (const shared_ptr<SignalBase>& sig : sigs) {
 197                 assert(sig);
 198
 199                 QCheckBox *const checkbox = new QCheckBox(sig->name());
 200                 check_box_mapper_.setMapping(checkbox, checkbox);
 201                 connect(checkbox, SIGNAL(toggled(bool)),
 202                         &check_box_mapper_, SLOT(map()));
 203
 204                 grid->addWidget(checkbox, row, col);
 205
 206                 check_box_signal_map_[checkbox] = sig;
 207
 208                 if (++col >= 8)
 209                         col = 0, row++;
 210         }
 211
 212         return grid;
 213 }
 214
 215 void Channels::showEvent(QShowEvent *event)
 216 {
 217         pv::widgets::Popup::showEvent(event);
 218
 219         updating_channels_ = true;
 220
 221         for (map<QCheckBox*, shared_ptr<SignalBase> >::const_iterator i =
 222                         check_box_signal_map_.begin();
 223                         i != check_box_signal_map_.end(); i++) {
 224                 const shared_ptr<SignalBase> sig = (*i).second;
 225                 assert(sig);
 226
 227                 (*i).first->setChecked(sig->enabled());
 228         }
 229
 230         updating_channels_ = false;
 231 }
 232
 233 void Channels::on_channel_checked(QWidget *widget)
 234 {
 235         if (updating_channels_)
 236                 return;
 237
 238         QCheckBox *const check_box = (QCheckBox*)widget;
 239         assert(check_box);
 240
 241         // Look up the signal of this check-box
 242         map< QCheckBox*, shared_ptr<SignalBase> >::const_iterator iter =
 243                 check_box_signal_map_.find((QCheckBox*)check_box);
 244         assert(iter != check_box_signal_map_.end());
 245
 246         const shared_ptr<SignalBase> s = (*iter).second;
 247         assert(s);
 248
 249         s->set_enabled(check_box->isChecked());
 250 }
 251
 252 void Channels::enable_all_channels()
 253 {
 254         set_all_channels(true);
 255 }
 256
 257 void Channels::disable_all_channels()
 258 {
 259         set_all_channels(false);
 260 }
 261
 262 } // popups
 263 } // pv