Initial revision

src/widget-boolean.c

@@ -0,0 +1,50 @@
+// SPDX-FileCopyrightText: 2022 Geoffrey D. Bennett <g@b4.vu>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "widget-boolean.h"
+
+static void button_clicked(GtkWidget *widget, struct alsa_elem *elem) {
+  int value = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
+
+  alsa_set_elem_value(elem, value);
+}
+
+static void toggle_button_updated(struct alsa_elem *elem) {
+  int is_writable = alsa_get_elem_writable(elem);
+  gtk_widget_set_sensitive(elem->widget, is_writable);
+
+  int value = alsa_get_elem_value(elem);
+  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(elem->widget), value);
+
+  const char *text = elem->bool_text[value];
+  if (text) {
+    if (*text == '*') {
+      GtkWidget *icon = gtk_image_new_from_icon_name(text + 1);
+      gtk_button_set_child(GTK_BUTTON(elem->widget), icon);
+    } else {
+      gtk_button_set_label(
+        GTK_BUTTON(elem->widget), elem->bool_text[value]
+      );
+    }
+  }
+}
+
+GtkWidget *make_boolean_alsa_elem(
+  struct alsa_elem *elem,
+  const char       *disabled_text,
+  const char       *enabled_text
+) {
+  GtkWidget *button = gtk_toggle_button_new();
+
+  g_signal_connect(
+    button, "clicked", G_CALLBACK(button_clicked), elem
+  );
+  elem->widget = button;
+  elem->widget_callback = toggle_button_updated;
+  elem->bool_text[0] = disabled_text;
+  elem->bool_text[1] = enabled_text;
+
+  toggle_button_updated(elem);
+
+  return button;
+}