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
  28 #include <QCheckBox>
  29 #include <QFormLayout>
  30 #include <QGridLayout>
  31 #include <QLabel>
  32
  33 #include "channels.hpp"
  34
  35 #include <pv/binding/device.hpp>
  36 #include <pv/data/signalbase.hpp>
  37 #include <pv/devices/device.hpp>
  38 #include <pv/session.hpp>
  39 #include <pv/view/signal.hpp>
  40
  41 #include <libsigrokcxx/libsigrokcxx.hpp>
  42
  43 using namespace Qt;
  44
  45 using std::map;
  46 using std::shared_ptr;
  47 using std::make_shared;
  48 using std::unordered_set;
  49 using std::vector;
  50
  51 using pv::data::SignalBase;
  52
  53 using sigrok::Channel;
  54 using sigrok::ChannelGroup;
  55 using sigrok::Device;
  56
  57 namespace pv {
  58 namespace popups {
  59
  60 Channels::Channels(Session &session, QWidget *parent) :
  61         Popup(parent),
  62         session_(session),
  63         updating_channels_(false),
  64         enable_all_channels_(tr("Enable All"), this),
  65         disable_all_channels_(tr("Disable All"), this),
  66         check_box_mapper_(this)
  67 {
  68         // Create the layout
  69         setLayout(&layout_);
  70
  71         const shared_ptr<sigrok::Device> device = session_.device()->device();
  72         assert(device);
  73
  74         // Collect a set of signals
  75         map<shared_ptr<Channel>, shared_ptr<SignalBase> > signal_map;
  76
  77         unordered_set< shared_ptr<SignalBase> > sigs;
  78         for (const shared_ptr<data::SignalBase> b : session_.signalbases())
  79                 sigs.insert(b);
  80
  81         for (const shared_ptr<SignalBase> &sig : sigs)
  82                 signal_map[sig->channel()] = sig;
  83
  84         // Populate channel groups
  85         for (auto entry : device->channel_groups()) {
  86                 shared_ptr<ChannelGroup> group = entry.second;
  87                 // Make a set of signals, and removed this signals from the
  88                 // signal map.
  89                 vector< shared_ptr<SignalBase> > group_sigs;
  90                 for (auto channel : group->channels()) {
  91                         const auto iter = signal_map.find(channel);
  92
  93                         if (iter == signal_map.end())
  94                                 break;
  95
  96                         group_sigs.push_back((*iter).second);
  97                         signal_map.erase(iter);
  98                 }
  99
 100                 populate_group(group, group_sigs);
 101         }
 102
 103         // Make a vector of the remaining channels
 104         vector< shared_ptr<SignalBase> > global_sigs;
 105         for (auto channel : device->channels()) {
 106                 const map<shared_ptr<Channel>, shared_ptr<SignalBase> >::
 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(nullptr, 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<SignalBase> >::const_iterator i =
 140                         check_box_signal_map_.begin();
 141                         i != check_box_signal_map_.end(); i++) {
 142                 const shared_ptr<SignalBase> sig = (*i).second;
 143                 assert(sig);
 144
 145                 sig->set_enabled(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<SignalBase> > 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 = make_shared<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 = create_channel_group_grid(sigs);
 172         layout_.addRow(channel_grid);
 173
 174         // Create the channel group options
 175         if (binding) {
 176                 binding->add_properties_to_form(&layout_, true);
 177                 group_bindings_.push_back(binding);
 178         }
 179 }
 180
 181 QGridLayout* Channels::create_channel_group_grid(
 182         const vector< shared_ptr<SignalBase> > sigs)
 183 {
 184         int row = 0, col = 0;
 185         QGridLayout *const grid = new QGridLayout();
 186
 187         for (const shared_ptr<SignalBase>& sig : sigs) {
 188                 assert(sig);
 189
 190                 QCheckBox *const checkbox = new QCheckBox(sig->name());
 191                 check_box_mapper_.setMapping(checkbox, checkbox);
 192                 connect(checkbox, SIGNAL(toggled(bool)),
 193                         &check_box_mapper_, SLOT(map()));
 194
 195                 grid->addWidget(checkbox, row, col);
 196
 197                 check_box_signal_map_[checkbox] = sig;
 198
 199                 if (++col >= 8)
 200                         col = 0, row++;
 201         }
 202
 203         return grid;
 204 }
 205
 206 void Channels::showEvent(QShowEvent *event)
 207 {
 208         pv::widgets::Popup::showEvent(event);
 209
 210         updating_channels_ = true;
 211
 212         for (map<QCheckBox*, shared_ptr<SignalBase> >::const_iterator i =
 213                         check_box_signal_map_.begin();
 214                         i != check_box_signal_map_.end(); i++) {
 215                 const shared_ptr<SignalBase> sig = (*i).second;
 216                 assert(sig);
 217
 218                 (*i).first->setChecked(sig->enabled());
 219         }
 220
 221         updating_channels_ = false;
 222 }
 223
 224 void Channels::on_channel_checked(QWidget *widget)
 225 {
 226         if (updating_channels_)
 227                 return;
 228
 229         QCheckBox *const check_box = (QCheckBox*)widget;
 230         assert(check_box);
 231
 232         // Look up the signal of this check-box
 233         map< QCheckBox*, shared_ptr<SignalBase> >::const_iterator iter =
 234                 check_box_signal_map_.find((QCheckBox*)check_box);
 235         assert(iter != check_box_signal_map_.end());
 236
 237         const shared_ptr<SignalBase> s = (*iter).second;
 238         assert(s);
 239
 240         s->set_enabled(check_box->isChecked());
 241 }
 242
 243 void Channels::enable_all_channels()
 244 {
 245         set_all_channels(true);
 246 }
 247
 248 void Channels::disable_all_channels()
 249 {
 250         set_all_channels(false);
 251 }
 252
 253 }  // namespace popups
 254 }  // namespace pv