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         unsigned current_index = 0;
  55         card_combo->addItem(QString("(none)   "));
  56         for (const auto &spec_and_name : card_names) {
  57                 ++current_index;
  58                 card_combo->addItem(
  59                         QString::fromStdString(spec_and_name.second + "   "),
  60                         qulonglong(DeviceSpec_to_key(spec_and_name.first)));
  61                 if (bus.device == spec_and_name.first) {
  62                         card_combo->setCurrentIndex(current_index);
  63                 }
  64         }
  65         connect(card_combo, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
  66                 bind(&InputMappingDialog::card_selected, this, card_combo, row, _1));
  67         ui->table->setCellWidget(row, 1, card_combo);
  68
  69         setup_channel_choices_from_bus(row, bus);
  70 }
  71
  72 void InputMappingDialog::setup_channel_choices_from_bus(unsigned row, const InputMapping::Bus &bus)
  73 {
  74         // Left and right channel.
  75         for (unsigned channel = 0; channel < 2; ++channel) {
  76                 QComboBox *channel_combo = new QComboBox;
  77                 channel_combo->addItem(QString("(none)"));
  78                 if (bus.device.type == InputSourceType::CAPTURE_CARD) {
  79                         for (unsigned source = 0; source < 8; ++source) {  // TODO: Ask the card about number of channels, and names.
  80                                 char buf[256];
  81                                 snprintf(buf, sizeof(buf), "Channel %u   ", source + 1);
  82                                 channel_combo->addItem(QString(buf));
  83                         }
  84                         channel_combo->setCurrentIndex(bus.source_channel[channel] + 1);
  85                 } else {
  86                         channel_combo->setCurrentIndex(0);
  87                 }
  88                 connect(channel_combo, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
  89                         bind(&InputMappingDialog::channel_selected, this, row, channel, _1));
  90                 ui->table->setCellWidget(row, 2 + channel, channel_combo);
  91         }
  92 }
  93
  94 void InputMappingDialog::ok_clicked()
  95 {
  96         global_mixer->get_audio_mixer()->set_input_mapping(mapping);
  97         accept();
  98 }
  99
 100 void InputMappingDialog::cancel_clicked()
 101 {
 102         global_mixer->get_audio_mixer()->set_input_mapping(old_mapping);
 103         reject();
 104 }
 105
 106 void InputMappingDialog::cell_changed(int row, int column)
 107 {
 108         if (column != 0) {
 109                 // Spurious; only really the name column should fire these.
 110                 return;
 111         }
 112         mapping.buses[row].name = ui->table->item(row, column)->text().toStdString();
 113 }
 114
 115 void InputMappingDialog::card_selected(QComboBox *card_combo, unsigned row, int index)
 116 {
 117         uint64_t key = card_combo->itemData(index).toULongLong();
 118         mapping.buses[row].device = key_to_DeviceSpec(key);
 119         setup_channel_choices_from_bus(row, mapping.buses[row]);
 120 }
 121
 122 void InputMappingDialog::channel_selected(unsigned row, unsigned channel, int index)
 123 {
 124         mapping.buses[row].source_channel[channel] = index - 1;
 125 }
 126
 127 void InputMappingDialog::add_clicked()
 128 {
 129         QTableWidgetSelectionRange all(0, 0, ui->table->rowCount() - 1, ui->table->columnCount() - 1);
 130         ui->table->setRangeSelected(all, false);
 131
 132         InputMapping::Bus new_bus;
 133         new_bus.name = "New input";
 134         new_bus.device.type = InputSourceType::SILENCE;
 135         mapping.buses.push_back(new_bus);
 136         ui->table->setRowCount(mapping.buses.size());
 137
 138         unsigned row = mapping.buses.size() - 1;
 139         fill_row_from_bus(row, new_bus);
 140         ui->table->editItem(ui->table->item(row, 0));  // Start editing the name.
 141         update_button_state();
 142 }
 143
 144 void InputMappingDialog::remove_clicked()
 145 {
 146         assert(ui->table->rowCount() != 0);
 147
 148         set<int, greater<int>> rows_to_delete;  // Need to remove in reverse order.
 149         for (const QTableWidgetSelectionRange &range : ui->table->selectedRanges()) {
 150                 for (int row = range.topRow(); row <= range.bottomRow(); ++row) {
 151                         rows_to_delete.insert(row);
 152                 }
 153         }
 154         if (rows_to_delete.empty()) {
 155                 rows_to_delete.insert(ui->table->rowCount() - 1);
 156         }
 157
 158         for (int row : rows_to_delete) {
 159                 ui->table->removeRow(row);
 160                 mapping.buses.erase(mapping.buses.begin() + row);
 161         }
 162         update_button_state();
 163 }
 164
 165 void InputMappingDialog::updown_clicked(int direction)
 166 {
 167         assert(ui->table->selectedRanges().size() == 1);
 168         const QTableWidgetSelectionRange &range = ui->table->selectedRanges()[0];
 169         int a_row = range.bottomRow();
 170         int b_row = range.bottomRow() + direction;
 171
 172         swap(mapping.buses[a_row], mapping.buses[b_row]);
 173         fill_row_from_bus(a_row, mapping.buses[a_row]);
 174         fill_row_from_bus(b_row, mapping.buses[b_row]);
 175
 176         QTableWidgetSelectionRange a_sel(a_row, 0, a_row, ui->table->columnCount() - 1);
 177         QTableWidgetSelectionRange b_sel(b_row, 0, b_row, ui->table->columnCount() - 1);
 178         ui->table->setRangeSelected(a_sel, false);
 179         ui->table->setRangeSelected(b_sel, true);
 180 }
 181
 182 void InputMappingDialog::update_button_state()
 183 {
 184         ui->add_button->setDisabled(mapping.buses.size() >= MAX_BUSES);
 185         ui->remove_button->setDisabled(mapping.buses.size() == 0);
 186         ui->up_button->setDisabled(
 187                 ui->table->selectedRanges().empty() ||
 188                 ui->table->selectedRanges()[0].bottomRow() == 0);
 189         ui->down_button->setDisabled(
 190                 ui->table->selectedRanges().empty() ||
 191                 ui->table->selectedRanges()[0].bottomRow() == ui->table->rowCount() - 1);
 192 }