]> git.sesse.net Git - nageru/blobdiff - input_mapping_dialog.cpp
Write 1.4.0 changelog.
[nageru] / input_mapping_dialog.cpp
index 2d40cc2a500a839557e46aef541fa1c52677a86f..f303280e62215059f246176e7db232ec2a161af8 100644 (file)
@@ -1,18 +1,43 @@
 #include "input_mapping_dialog.h"
 
-#include "ui_input_mapping.h"
-
+#include <assert.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <QAbstractItemView>
 #include <QComboBox>
+#include <QDialogButtonBox>
+#include <QFileDialog>
+#include <QHeaderView>
+#include <QList>
+#include <QMessageBox>
+#include <QPushButton>
+#include <QTableWidget>
+#include <QVariant>
+#include <functional>
+#include <memory>
+#include <set>
+#include <string>
+#include <utility>
+
+#include "alsa_pool.h"
+#include "defs.h"
+#include "post_to_main_thread.h"
+#include "ui_input_mapping.h"
 
 using namespace std;
 using namespace std::placeholders;
 
 InputMappingDialog::InputMappingDialog()
        : ui(new Ui::InputMappingDialog),
-         mapping(global_mixer->get_audio_mixer()->get_input_mapping()),
+         mapping(global_audio_mixer->get_input_mapping()),
          old_mapping(mapping),
-         devices(global_mixer->get_audio_mixer()->get_devices())
+         devices(global_audio_mixer->get_devices())
 {
+       for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
+               bus_settings.push_back(global_audio_mixer->get_bus_settings(bus_index));
+       }
+
        ui->setupUi(this);
        ui->table->setSelectionBehavior(QAbstractItemView::SelectRows);
        ui->table->setSelectionMode(QAbstractItemView::SingleSelection);  // Makes implementing moving easier for now.
@@ -25,9 +50,26 @@ InputMappingDialog::InputMappingDialog()
        connect(ui->remove_button, &QPushButton::clicked, this, &InputMappingDialog::remove_clicked);
        connect(ui->up_button, &QPushButton::clicked, bind(&InputMappingDialog::updown_clicked, this, -1));
        connect(ui->down_button, &QPushButton::clicked, bind(&InputMappingDialog::updown_clicked, this, 1));
+       connect(ui->save_button, &QPushButton::clicked, this, &InputMappingDialog::save_clicked);
+       connect(ui->load_button, &QPushButton::clicked, this, &InputMappingDialog::load_clicked);
 
        update_button_state();
        connect(ui->table, &QTableWidget::itemSelectionChanged, this, &InputMappingDialog::update_button_state);
+
+       saved_callback = global_audio_mixer->get_state_changed_callback();
+       global_audio_mixer->set_state_changed_callback([this]{
+               post_to_main_thread([this]{
+                       devices = global_audio_mixer->get_devices();
+                       for (unsigned row = 0; row < mapping.buses.size(); ++row) {
+                               fill_row_from_bus(row, mapping.buses[row]);
+                       }
+               });
+       });
+}
+
+InputMappingDialog::~InputMappingDialog()
+{
+       global_audio_mixer->set_state_changed_callback(saved_callback);
 }
 
 void InputMappingDialog::fill_ui_from_mapping(const InputMapping &mapping)
@@ -49,19 +91,47 @@ void InputMappingDialog::fill_row_from_bus(unsigned row, const InputMapping::Bus
        QString name(QString::fromStdString(bus.name));
        ui->table->setItem(row, 0, new QTableWidgetItem(name));
 
-       // Card choices.
-       QComboBox *card_combo = new QComboBox;
+       // Card choices. If there's already a combobox here, we try to modify
+       // the elements in-place, so that the UI doesn't go away under the user's feet
+       // if they are in the process of choosing an item.
+       QComboBox *card_combo = static_cast<QComboBox *>(ui->table->cellWidget(row, 1));
+       if (card_combo == nullptr) {
+               card_combo = new QComboBox;
+       }
        unsigned current_index = 0;
-       card_combo->addItem(QString("(none)   "));
+       if (card_combo->count() == 0) {
+               card_combo->addItem(QString("(none)   "));
+       }
        for (const auto &spec_and_info : devices) {
+               QString label(QString::fromStdString(spec_and_info.second.display_name));
+               if (spec_and_info.first.type == InputSourceType::ALSA_INPUT) {
+                       ALSAPool::Device::State state = global_audio_mixer->get_alsa_card_state(spec_and_info.first.index);
+                       if (state == ALSAPool::Device::State::EMPTY) {
+                               continue;
+                       } else if (state == ALSAPool::Device::State::STARTING) {
+                               label += " (busy)";
+                       } else if (state == ALSAPool::Device::State::DEAD) {
+                               label += " (dead)";
+                       }
+               }
                ++current_index;
-               card_combo->addItem(
-                       QString::fromStdString(spec_and_info.second.name + "   "),
-                       qulonglong(DeviceSpec_to_key(spec_and_info.first)));
+               if (unsigned(card_combo->count()) > current_index) {
+                       card_combo->setItemText(current_index, label + "   ");
+                       card_combo->setItemData(current_index, qulonglong(DeviceSpec_to_key(spec_and_info.first)));
+               } else {
+                       card_combo->addItem(
+                               label + "   ",
+                               qulonglong(DeviceSpec_to_key(spec_and_info.first)));
+               }
                if (bus.device == spec_and_info.first) {
                        card_combo->setCurrentIndex(current_index);
                }
        }
+       // Remove any excess items from earlier. (This is only for paranoia;
+       // they should be held, so it shouldn't matter.)
+       while (unsigned(card_combo->count()) > current_index + 1) {
+               card_combo->removeItem(current_index + 1);
+       }
        connect(card_combo, static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
                bind(&InputMappingDialog::card_selected, this, card_combo, row, _1));
        ui->table->setCellWidget(row, 1, card_combo);
@@ -72,10 +142,13 @@ void InputMappingDialog::fill_row_from_bus(unsigned row, const InputMapping::Bus
 void InputMappingDialog::setup_channel_choices_from_bus(unsigned row, const InputMapping::Bus &bus)
 {
        // Left and right channel.
+       // TODO: If there's already a widget here, modify it instead of creating a new one,
+       // as we do with card choices.
        for (unsigned channel = 0; channel < 2; ++channel) {
                QComboBox *channel_combo = new QComboBox;
                channel_combo->addItem(QString("(none)"));
-               if (bus.device.type == InputSourceType::CAPTURE_CARD) {
+               if (bus.device.type == InputSourceType::CAPTURE_CARD ||
+                   bus.device.type == InputSourceType::ALSA_INPUT) {
                        auto device_it = devices.find(bus.device);
                        assert(device_it != devices.end());
                        unsigned num_device_channels = device_it->second.num_channels;
@@ -96,13 +169,19 @@ void InputMappingDialog::setup_channel_choices_from_bus(unsigned row, const Inpu
 
 void InputMappingDialog::ok_clicked()
 {
-       global_mixer->get_audio_mixer()->set_input_mapping(mapping);
+       global_audio_mixer->set_state_changed_callback(saved_callback);
+       global_audio_mixer->set_input_mapping(mapping);
+       for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
+               global_audio_mixer->set_bus_settings(bus_index, bus_settings[bus_index]);
+               global_audio_mixer->reset_peak(bus_index);
+       }
        accept();
 }
 
 void InputMappingDialog::cancel_clicked()
 {
-       global_mixer->get_audio_mixer()->set_input_mapping(old_mapping);
+       global_audio_mixer->set_state_changed_callback(saved_callback);
+       global_audio_mixer->set_input_mapping(old_mapping);
        reject();
 }
 
@@ -136,6 +215,7 @@ void InputMappingDialog::add_clicked()
        new_bus.name = "New input";
        new_bus.device.type = InputSourceType::SILENCE;
        mapping.buses.push_back(new_bus);
+       bus_settings.push_back(AudioMixer::get_default_bus_settings());
        ui->table->setRowCount(mapping.buses.size());
 
        unsigned row = mapping.buses.size() - 1;
@@ -161,6 +241,7 @@ void InputMappingDialog::remove_clicked()
        for (int row : rows_to_delete) {
                ui->table->removeRow(row);
                mapping.buses.erase(mapping.buses.begin() + row);
+               bus_settings.erase(bus_settings.begin() + row);
        }
        update_button_state();
 }
@@ -173,6 +254,7 @@ void InputMappingDialog::updown_clicked(int direction)
        int b_row = range.bottomRow() + direction;
 
        swap(mapping.buses[a_row], mapping.buses[b_row]);
+       swap(bus_settings[a_row], bus_settings[b_row]);
        fill_row_from_bus(a_row, mapping.buses[a_row]);
        fill_row_from_bus(b_row, mapping.buses[b_row]);
 
@@ -182,6 +264,41 @@ void InputMappingDialog::updown_clicked(int direction)
        ui->table->setRangeSelected(b_sel, true);
 }
 
+void InputMappingDialog::save_clicked()
+{
+       QString filename = QFileDialog::getSaveFileName(this,
+               "Save input mapping", QString(), tr("Mapping files (*.mapping)"));
+       if (!filename.endsWith(".mapping")) {
+               filename += ".mapping";
+       }
+       if (!save_input_mapping_to_file(devices, mapping, filename.toStdString())) {
+               QMessageBox box;
+               box.setText("Could not save mapping to '" + filename + "'. Check that you have the right permissions and try again.");
+               box.exec();
+       }
+}
+
+void InputMappingDialog::load_clicked()
+{
+       QString filename = QFileDialog::getOpenFileName(this,
+               "Load input mapping", QString(), tr("Mapping files (*.mapping)"));
+       InputMapping new_mapping;
+       if (!load_input_mapping_from_file(devices, filename.toStdString(), &new_mapping)) {
+               QMessageBox box;
+               box.setText("Could not load mapping from '" + filename + "'. Check that the file exists, has the right permissions and is valid.");
+               box.exec();
+               return;
+       }
+
+       mapping = new_mapping;
+       bus_settings.clear();
+       for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
+               bus_settings.push_back(global_audio_mixer->get_bus_settings(bus_index));
+       }
+       devices = global_audio_mixer->get_devices();  // New dead cards may have been made.
+       fill_ui_from_mapping(mapping);
+}
+
 void InputMappingDialog::update_button_state()
 {
        ui->add_button->setDisabled(mapping.buses.size() >= MAX_BUSES);