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_mixer->get_audio_mixer()->get_input_mapping()),
  13           old_mapping(mapping),
  14           card_names(global_mixer->get_audio_mixer()->get_names())
  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         card_combo->addItem(QString("(none)   "));
  55         for (const string &name : card_names) {
  56                 card_combo->addItem(QString::fromStdString(name + "   "));
  57         }
  58         switch (bus.input_source_type) {
  59         case InputSourceType::SILENCE:
  60                 card_combo->setCurrentIndex(0);
  61                 break;
  62         case InputSourceType::CAPTURE_CARD:
  63                 card_combo->setCurrentIndex(mapping.buses[row].input_source_index + 1);
  64                 break;
  65         default:
  66                 assert(false);
  67         }
  68         connect(card_combo, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
  69                 bind(&InputMappingDialog::card_selected, this, row, _1));
  70         ui->table->setCellWidget(row, 1, card_combo);
  71
  72         setup_channel_choices_from_bus(row, bus);
  73 }
  74
  75 void InputMappingDialog::setup_channel_choices_from_bus(unsigned row, const InputMapping::Bus &bus)
  76 {
  77         // Left and right channel.
  78         for (unsigned channel = 0; channel < 2; ++channel) {
  79                 QComboBox *channel_combo = new QComboBox;
  80                 channel_combo->addItem(QString("(none)"));
  81                 if (bus.input_source_type == InputSourceType::CAPTURE_CARD) {
  82                         for (unsigned source = 0; source < 8; ++source) {  // TODO: Ask the card about number of channels, and names.
  83                                 char buf[256];
  84                                 snprintf(buf, sizeof(buf), "Channel %u   ", source + 1);
  85                                 channel_combo->addItem(QString(buf));
  86                         }
  87                         channel_combo->setCurrentIndex(bus.source_channel[channel] + 1);
  88                 } else {
  89                         channel_combo->setCurrentIndex(0);
  90                 }
  91                 connect(channel_combo, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
  92                         bind(&InputMappingDialog::channel_selected, this, row, channel, _1));
  93                 ui->table->setCellWidget(row, 2 + channel, channel_combo);
  94         }
  95 }
  96
  97 void InputMappingDialog::ok_clicked()
  98 {
  99         global_mixer->get_audio_mixer()->set_input_mapping(mapping);
 100         accept();
 101 }
 102
 103 void InputMappingDialog::cancel_clicked()
 104 {
 105         global_mixer->get_audio_mixer()->set_input_mapping(old_mapping);
 106         reject();
 107 }
 108
 109 void InputMappingDialog::cell_changed(int row, int column)
 110 {
 111         if (column != 0) {
 112                 // Spurious; only really the name column should fire these.
 113                 return;
 114         }
 115         mapping.buses[row].name = ui->table->item(row, column)->text().toStdString();
 116 }
 117
 118 void InputMappingDialog::card_selected(unsigned row, int index)
 119 {
 120         if (index == 0) {
 121                 mapping.buses[row].input_source_type = InputSourceType::SILENCE;
 122         } else {
 123                 mapping.buses[row].input_source_type = InputSourceType::CAPTURE_CARD;
 124                 mapping.buses[row].input_source_index = index - 1;
 125         }
 126         setup_channel_choices_from_bus(row, mapping.buses[row]);
 127 }
 128
 129 void InputMappingDialog::channel_selected(unsigned row, unsigned channel, int index)
 130 {
 131         mapping.buses[row].source_channel[channel] = index - 1;
 132 }
 133
 134 void InputMappingDialog::add_clicked()
 135 {
 136         QTableWidgetSelectionRange all(0, 0, ui->table->rowCount() - 1, ui->table->columnCount() - 1);
 137         ui->table->setRangeSelected(all, false);
 138
 139         InputMapping::Bus new_bus;
 140         new_bus.name = "New input";
 141         new_bus.input_source_type = InputSourceType::SILENCE;
 142         mapping.buses.push_back(new_bus);
 143         ui->table->setRowCount(mapping.buses.size());
 144
 145         unsigned row = mapping.buses.size() - 1;
 146         fill_row_from_bus(row, new_bus);
 147         ui->table->editItem(ui->table->item(row, 0));  // Start editing the name.
 148         update_button_state();
 149 }
 150
 151 void InputMappingDialog::remove_clicked()
 152 {
 153         assert(ui->table->rowCount() != 0);
 154
 155         set<int, greater<int>> rows_to_delete;  // Need to remove in reverse order.
 156         for (const QTableWidgetSelectionRange &range : ui->table->selectedRanges()) {
 157                 for (int row = range.topRow(); row <= range.bottomRow(); ++row) {
 158                         rows_to_delete.insert(row);
 159                 }
 160         }
 161         if (rows_to_delete.empty()) {
 162                 rows_to_delete.insert(ui->table->rowCount() - 1);
 163         }
 164
 165         for (int row : rows_to_delete) {
 166                 ui->table->removeRow(row);
 167                 mapping.buses.erase(mapping.buses.begin() + row);
 168         }
 169         update_button_state();
 170 }
 171
 172 void InputMappingDialog::updown_clicked(int direction)
 173 {
 174         assert(ui->table->selectedRanges().size() == 1);
 175         const QTableWidgetSelectionRange &range = ui->table->selectedRanges()[0];
 176         int a_row = range.bottomRow();
 177         int b_row = range.bottomRow() + direction;
 178
 179         swap(mapping.buses[a_row], mapping.buses[b_row]);
 180         fill_row_from_bus(a_row, mapping.buses[a_row]);
 181         fill_row_from_bus(b_row, mapping.buses[b_row]);
 182
 183         QTableWidgetSelectionRange a_sel(a_row, 0, a_row, ui->table->columnCount() - 1);
 184         QTableWidgetSelectionRange b_sel(b_row, 0, b_row, ui->table->columnCount() - 1);
 185         ui->table->setRangeSelected(a_sel, false);
 186         ui->table->setRangeSelected(b_sel, true);
 187 }
 188
 189 void InputMappingDialog::update_button_state()
 190 {
 191         ui->add_button->setDisabled(mapping.buses.size() >= MAX_BUSES);
 192         ui->remove_button->setDisabled(mapping.buses.size() == 0);
 193         ui->up_button->setDisabled(
 194                 ui->table->selectedRanges().empty() ||
 195                 ui->table->selectedRanges()[0].bottomRow() == 0);
 196         ui->down_button->setDisabled(
 197                 ui->table->selectedRanges().empty() ||
 198                 ui->table->selectedRanges()[0].bottomRow() == ui->table->rowCount() - 1);
 199 }