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