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.h"
  29
  30 #include <pv/device/devinst.h>
  31 #include <pv/prop/binding/deviceoptions.h>
  32 #include <pv/sigsession.h>
  33 #include <pv/view/signal.h>
  34
  35 using namespace Qt;
  36
  37 using std::map;
  38 using std::set;
  39 using std::shared_ptr;
  40 using std::vector;
  41
  42 using pv::view::Signal;
  43
  44 namespace pv {
  45 namespace popups {
  46
  47 Channels::Channels(SigSession &session, QWidget *parent) :
  48         Popup(parent),
  49         _session(session),
  50         _updating_channels(false),
  51         _enable_all_channels(tr("Enable All"), this),
  52         _disable_all_channels(tr("Disable All"), this),
  53         _check_box_mapper(this)
  54 {
  55         // Create the layout
  56         setLayout(&_layout);
  57
  58         shared_ptr<device::DevInst> dev_inst = _session.get_device();
  59         assert(dev_inst);
  60         const sr_dev_inst *const sdi = dev_inst->dev_inst();
  61         assert(sdi);
  62
  63         // Collect a set of signals
  64         map<const sr_channel*, shared_ptr<Signal> > signal_map;
  65         const vector< shared_ptr<Signal> > sigs = _session.get_signals();
  66
  67         for (const shared_ptr<Signal> &sig : sigs)
  68                 signal_map[sig->channel()] = sig;
  69
  70         // Populate channel groups
  71         for (const GSList *g = sdi->channel_groups; g; g = g->next)
  72         {
  73                 const sr_channel_group *const group =
  74                         (const sr_channel_group*)g->data;
  75                 assert(group);
  76
  77                 // Make a set of signals and remove these signals from the
  78                 // signal map.
  79                 vector< shared_ptr<Signal> > group_sigs;
  80                 for (const GSList *p = group->channels; p; p = p->next)
  81                 {
  82                         const sr_channel *const channel = (const sr_channel*)p->data;
  83                         assert(channel);
  84
  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<Signal> > global_sigs;
  99         for (const GSList *p = sdi->channels; p; p = p->next)
 100         {
 101                 const sr_channel *const channel = (const sr_channel*)p->data;
 102                 assert(channel);
 103
 104                 const map<const sr_channel*, shared_ptr<Signal> >::
 105                         const_iterator iter = signal_map.find(channel);
 106                 if (iter != signal_map.end())
 107                         global_sigs.push_back((*iter).second);
 108         }
 109
 110         // Create a group
 111         populate_group(NULL, global_sigs);
 112
 113         // Create the enable/disable all buttons
 114         connect(&_enable_all_channels, SIGNAL(clicked()),
 115                 this, SLOT(enable_all_channels()));
 116         connect(&_disable_all_channels, SIGNAL(clicked()),
 117                 this, SLOT(disable_all_channels()));
 118
 119         _enable_all_channels.setFlat(true);
 120         _disable_all_channels.setFlat(true);
 121
 122         _buttons_bar.addWidget(&_enable_all_channels);
 123         _buttons_bar.addWidget(&_disable_all_channels);
 124         _buttons_bar.addStretch(1);
 125
 126         _layout.addRow(&_buttons_bar);
 127
 128         // Connect the check-box signal mapper
 129         connect(&_check_box_mapper, SIGNAL(mapped(QWidget*)),
 130                 this, SLOT(on_channel_checked(QWidget*)));
 131 }
 132
 133 void Channels::set_all_channels(bool set)
 134 {
 135         _updating_channels = true;
 136
 137         for (map<QCheckBox*, shared_ptr<Signal> >::const_iterator i =
 138                 _check_box_signal_map.begin();
 139                 i != _check_box_signal_map.end(); i++)
 140         {
 141                 const shared_ptr<Signal> sig = (*i).second;
 142                 assert(sig);
 143
 144                 sig->enable(set);
 145                 (*i).first->setChecked(set);
 146         }
 147
 148         _updating_channels = false;
 149 }
 150
 151 void Channels::populate_group(const sr_channel_group *group,
 152         const vector< shared_ptr<pv::view::Signal> > sigs)
 153 {
 154         using pv::prop::binding::DeviceOptions;
 155
 156         // Only bind options if this is a group. We don't do it for general
 157         // options, because these properties are shown in the device config
 158         // popup.
 159         shared_ptr<DeviceOptions> binding;
 160         if (group)
 161                 binding = shared_ptr<DeviceOptions>(new DeviceOptions(
 162                         _session.get_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 && group->name)
 167                 _layout.addRow(new QLabel(
 168                         QString("<h3>%1</h3>").arg(group->name)));
 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->get_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