From 551ae682b54e727c225ac980a56dd8fb427520e2 Mon Sep 17 00:00:00 2001
From: Bryan Schumaker <bjschuma@gmail.com>
Date: Wed, 1 Feb 2012 08:32:43 -0500
Subject: [PATCH] ocarina: Provide a UI for using ALSA

You can either turn it on or off, and then you can select an output
device from a dropdown list.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
---
 include/ocarina/settings.h    |  1 +
 ocarina/settings/general.cpp  | 67 +++++++++++++++++++++++++++++++++++
 ocarina/settings/settings.cpp |  1 +
 3 files changed, 69 insertions(+)
 create mode 100644 ocarina/settings/general.cpp

diff --git a/include/ocarina/settings.h b/include/ocarina/settings.h
index 11f69703..32cc4e0e 100644
--- a/include/ocarina/settings.h
+++ b/include/ocarina/settings.h
@@ -9,6 +9,7 @@ using namespace std;
 void settings_init();
 void add_settings_page(string, GtkWidget *);
 
+void general_settings_init();
 void library_settings_init();
 void library_settings_refresh();
 
diff --git a/ocarina/settings/general.cpp b/ocarina/settings/general.cpp
new file mode 100644
index 00000000..3af14d58
--- /dev/null
+++ b/ocarina/settings/general.cpp
@@ -0,0 +1,67 @@
+// Copyright (c) 2012 Bryan Schumaker
+#include <ocarina/settings.h>
+#include <ocarina/gtk.h>
+
+#include <libsaria/audio.h>
+
+static GtkWidget *alsa_devices = NULL;
+static unsigned int num_alsa_devices = 0;
+
+static void set_alsa_devices(bool using_alsa)
+{
+	list<string> *devices;
+	list<string>::iterator it;
+
+	for (unsigned int i = 0; i < num_alsa_devices; i++)
+		gtk_combo_box_text_remove(GTK_COMBO_BOX_TEXT(alsa_devices), 0);
+	num_alsa_devices = 0;
+
+	if (using_alsa == true) {
+		devices = libsaria::audio::get_alsa_devices();
+		for (it = devices->begin(); it != devices->end(); it++)
+			gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(alsa_devices), it->c_str());
+		num_alsa_devices = devices->size();
+	}
+}
+
+static void change_alsa_device(GtkComboBox *combo, gpointer data)
+{
+	string device = gtk_combo_box_text_get_active_text(GTK_COMBO_BOX_TEXT(alsa_devices));
+	libsaria::audio::set_device(device);
+}
+
+static void toggle_alsa(GtkWidget *button, gpointer data)
+{
+	bool active = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button));
+	libsaria::audio::use_alsa(active);
+	gtk_widget_set_sensitive(alsa_devices, active);
+	set_alsa_devices(active);
+}
+
+static void add_alsa_settings(GtkWidget *general)
+{
+	bool using_alsa = libsaria::audio::using_alsa();
+	GtkWidget *alsa = gtk_hbox_new(FALSE, 0);
+	GtkWidget *button = gtk_check_button_new_with_label("Use ALSA");
+	alsa_devices = gtk_combo_box_text_new();
+
+	gtk_widget_set_sensitive(alsa_devices, using_alsa);
+	set_alsa_devices(using_alsa);
+
+	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(button), using_alsa);
+	GTK_CONNECT(button, "toggled", toggle_alsa, NULL);
+	GTK_CONNECT(alsa_devices, "changed", change_alsa_device, NULL);
+
+	box_pack_start(alsa,    button,       FALSE, FALSE, 0);
+	box_pack_start(alsa,    alsa_devices, TRUE,  TRUE,  0);
+	box_pack_start(general, alsa,         FALSE, FALSE, 0);
+}
+
+void general_settings_init()
+{
+	GtkWidget *general_settings = gtk_vbox_new(FALSE, 0);
+
+	add_alsa_settings(general_settings);
+	gtk_widget_show_all(general_settings);
+	add_settings_page("General", general_settings);
+}
diff --git a/ocarina/settings/settings.cpp b/ocarina/settings/settings.cpp
index cb471718..3f57d2e1 100644
--- a/ocarina/settings/settings.cpp
+++ b/ocarina/settings/settings.cpp
@@ -15,6 +15,7 @@ void settings_init()
 	gtk_widget_show(settings_tabs);
 	add_page(image, settings_tabs, false);
 
+	general_settings_init();
 	library_settings_init();
 }