Make it possible to load/save input mappings.

[nageru] / input_mapping_dialog.cpp

diff --git a/input_mapping_dialog.cpp b/input_mapping_dialog.cpp
index 6fcf7a8d61fc3cd40856c5411a16d7c2a188172c..232a88db20c795acfd869f1dd1b03bb13a0b9bf2 100644 (file)
--- a/input_mapping_dialog.cpp
+++ b/input_mapping_dialog.cpp
@@ -4,6 +4,8 @@
 #include "ui_input_mapping.h"
 
 #include <QComboBox>
+#include <QFileDialog>
+#include <QMessageBox>
 
 using namespace std;
 using namespace std::placeholders;
@@ -26,6 +28,8 @@ 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);
@@ -231,6 +235,37 @@ 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;
+       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);