git.sesse.net Git - nageru/blob - input_mapping_dialog.cpp

   1 #include "input_mapping_dialog.h"
   2
   3 #include "ui_input_mapping.h"
   4
   5 #include <QComboBox>
   6
   7 using namespace std;
   8 using namespace std::placeholders;
   9
  10 InputMappingDialog::InputMappingDialog()
  11         : ui(new Ui::InputMappingDialog),
  12           mapping(global_audio_mixer->get_input_mapping()),
  13           old_mapping(mapping),
  14           devices(global_audio_mixer->get_devices())
  15 {
  16         ui->setupUi(this);
  17         ui->table->setSelectionBehavior(QAbstractItemView::SelectRows);
  18         ui->table->setSelectionMode(QAbstractItemView::SingleSelection);  // Makes implementing moving easier for now.
  19
  20         fill_ui_from_mapping(mapping);
  21         connect(ui->table, &QTableWidget::cellChanged, this, &InputMappingDialog::cell_changed);
  22         connect(ui->ok_cancel_buttons, &QDialogButtonBox::accepted, this, &InputMappingDialog::ok_clicked);
  23         connect(ui->ok_cancel_buttons, &QDialogButtonBox::rejected, this, &InputMappingDialog::cancel_clicked);
  24         connect(ui->add_button, &QPushButton::clicked, this, &InputMappingDialog::add_clicked);
  25         connect(ui->remove_button, &QPushButton::clicked, this, &InputMappingDialog::remove_clicked);
  26         connect(ui->up_button, &QPushButton::clicked, bind(&InputMappingDialog::updown_clicked, this, -1));
  27         connect(ui->down_button, &QPushButton::clicked, bind(&InputMappingDialog::updown_clicked, this, 1));
  28
  29         update_button_state();
  30         connect(ui->table, &QTableWidget::itemSelectionChanged, this, &InputMappingDialog::update_button_state);
  31 }
  32
  33 void InputMappingDialog::fill_ui_from_mapping(const InputMapping &mapping)
  34 {
  35         ui->table->verticalHeader()->hide();
  36         ui->table->horizontalHeader()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
  37         ui->table->horizontalHeader()->setSectionResizeMode(2, QHeaderView::ResizeToContents);
  38         ui->table->horizontalHeader()->setSectionResizeMode(3, QHeaderView::ResizeToContents);
  39         ui->table->horizontalHeader()->setSectionsClickable(false);
  40
  41         ui->table->setRowCount(mapping.buses.size());
  42         for (unsigned row = 0; row < mapping.buses.size(); ++row) {
  43                 fill_row_from_bus(row, mapping.buses[row]);
  44         }
  45 }
  46
  47 void InputMappingDialog::fill_row_from_bus(unsigned row, const InputMapping::Bus &bus)
  48 {
  49         QString name(QString::fromStdString(bus.name));
  50         ui->table->setItem(row, 0, new QTableWidgetItem(name));
  51
  52         // Card choices.
  53         QComboBox *card_combo = new QComboBox;
  54         unsigned current_index = 0;
  55         card_combo->addItem(QString("(none)   "));
  56         for (const auto &spec_and_info : devices) {
  57                 QString label(QString::fromStdString(spec_and_info.second.name));
  58                 if (spec_and_info.first.type == InputSourceType::ALSA_INPUT) {
  59                         ALSAPool::Device::State state = global_audio_mixer->get_alsa_card_state(spec_and_info.first.index);
  60                         if (state == ALSAPool::Device::State::EMPTY) {
  61                                 continue;
  62                         } else if (state == ALSAPool::Device::State::STARTING) {
  63                                 label += " (busy)";
  64                         } else if (state == ALSAPool::Device::State::DEAD) {
  65                                 label += " (dead)";
  66                         }
  67                 }
  68                 ++current_index;
  69                 card_combo->addItem(
  70                         label + "   ",
  71                         qulonglong(DeviceSpec_to_key(spec_and_info.first)));
  72                 if (bus.device == spec_and_info.first) {
  73                         card_combo->setCurrentIndex(current_index);
  74                 }
  75         }
  76         connect(card_combo, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
  77                 bind(&InputMappingDialog::card_selected, this, card_combo, row, _1));
  78         ui->table->setCellWidget(row, 1, card_combo);
  79
  80         setup_channel_choices_from_bus(row, bus);
  81 }
  82
  83 void InputMappingDialog::setup_channel_choices_from_bus(unsigned row, const InputMapping::Bus &bus)
  84 {
  85         // Left and right channel.
  86         for (unsigned channel = 0; channel < 2; ++channel) {
  87                 QComboBox *channel_combo = new QComboBox;
  88                 channel_combo->addItem(QString("(none)"));
  89                 if (bus.device.type == InputSourceType::CAPTURE_CARD ||
  90                     bus.device.type == InputSourceType::ALSA_INPUT) {
  91                         auto device_it = devices.find(bus.device);
  92                         assert(device_it != devices.end());
  93                         unsigned num_device_channels = device_it->second.num_channels;
  94                         for (unsigned source = 0; source < num_device_channels; ++source) {
  95                                 char buf[256];
  96                                 snprintf(buf, sizeof(buf), "Channel %u   ", source + 1);
  97                                 channel_combo->addItem(QString(buf));
  98                         }
  99                         channel_combo->setCurrentIndex(bus.source_channel[channel] + 1);
 100                 } else {
 101                         channel_combo->setCurrentIndex(0);
 102                 }
 103                 connect(channel_combo, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
 104                         bind(&InputMappingDialog::channel_selected, this, row, channel, _1));
 105                 ui->table->setCellWidget(row, 2 + channel, channel_combo);
 106         }
 107 }
 108
 109 void InputMappingDialog::ok_clicked()
 110 {
 111         global_audio_mixer->set_input_mapping(mapping);
 112         accept();
 113 }
 114
 115 void InputMappingDialog::cancel_clicked()
 116 {
 117         global_audio_mixer->set_input_mapping(old_mapping);
 118         reject();
 119 }
 120
 121 void InputMappingDialog::cell_changed(int row, int column)
 122 {
 123         if (column != 0) {
 124                 // Spurious; only really the name column should fire these.
 125                 return;
 126         }
 127         mapping.buses[row].name = ui->table->item(row, column)->text().toStdString();
 128 }
 129
 130 void InputMappingDialog::card_selected(QComboBox *card_combo, unsigned row, int index)
 131 {
 132         uint64_t key = card_combo->itemData(index).toULongLong();
 133         mapping.buses[row].device = key_to_DeviceSpec(key);
 134         setup_channel_choices_from_bus(row, mapping.buses[row]);
 135 }
 136
 137 void InputMappingDialog::channel_selected(unsigned row, unsigned channel, int index)
 138 {
 139         mapping.buses[row].source_channel[channel] = index - 1;
 140 }
 141
 142 void InputMappingDialog::add_clicked()
 143 {
 144         QTableWidgetSelectionRange all(0, 0, ui->table->rowCount() - 1, ui->table->columnCount() - 1);
 145         ui->table->setRangeSelected(all, false);
 146
 147         InputMapping::Bus new_bus;
 148         new_bus.name = "New input";
 149         new_bus.device.type = InputSourceType::SILENCE;
 150         mapping.buses.push_back(new_bus);
 151         ui->table->setRowCount(mapping.buses.size());
 152
 153         unsigned row = mapping.buses.size() - 1;
 154         fill_row_from_bus(row, new_bus);
 155         ui->table->editItem(ui->table->item(row, 0));  // Start editing the name.
 156         update_button_state();
 157 }
 158
 159 void InputMappingDialog::remove_clicked()
 160 {
 161         assert(ui->table->rowCount() != 0);
 162
 163         set<int, greater<int>> rows_to_delete;  // Need to remove in reverse order.
 164         for (const QTableWidgetSelectionRange &range : ui->table->selectedRanges()) {
 165                 for (int row = range.topRow(); row <= range.bottomRow(); ++row) {
 166                         rows_to_delete.insert(row);
 167                 }
 168         }
 169         if (rows_to_delete.empty()) {
 170                 rows_to_delete.insert(ui->table->rowCount() - 1);
 171         }
 172
 173         for (int row : rows_to_delete) {
 174                 ui->table->removeRow(row);
 175                 mapping.buses.erase(mapping.buses.begin() + row);
 176         }
 177         update_button_state();
 178 }
 179
 180 void InputMappingDialog::updown_clicked(int direction)
 181 {
 182         assert(ui->table->selectedRanges().size() == 1);
 183         const QTableWidgetSelectionRange &range = ui->table->selectedRanges()[0];
 184         int a_row = range.bottomRow();
 185         int b_row = range.bottomRow() + direction;
 186
 187         swap(mapping.buses[a_row], mapping.buses[b_row]);
 188         fill_row_from_bus(a_row, mapping.buses[a_row]);
 189         fill_row_from_bus(b_row, mapping.buses[b_row]);
 190
 191         QTableWidgetSelectionRange a_sel(a_row, 0, a_row, ui->table->columnCount() - 1);
 192         QTableWidgetSelectionRange b_sel(b_row, 0, b_row, ui->table->columnCount() - 1);
 193         ui->table->setRangeSelected(a_sel, false);
 194         ui->table->setRangeSelected(b_sel, true);
 195 }
 196
 197 void InputMappingDialog::update_button_state()
 198 {
 199         ui->add_button->setDisabled(mapping.buses.size() >= MAX_BUSES);
 200         ui->remove_button->setDisabled(mapping.buses.size() == 0);
 201         ui->up_button->setDisabled(
 202                 ui->table->selectedRanges().empty() ||
 203                 ui->table->selectedRanges()[0].bottomRow() == 0);
 204         ui->down_button->setDisabled(
 205                 ui->table->selectedRanges().empty() ||
 206                 ui->table->selectedRanges()[0].bottomRow() == ui->table->rowCount() - 1);
 207 }