gtk-demo: Split out code from the settings demo

I want to add another demo using settings and share relevant code.

1 files changed, 165 insertions, 0 deletions

diff --git a/demos/gtk-demo/settings-key.c b/demos/gtk-demo/settings-key.c
new file mode 100644
index 0000000000..13c0a5d559
--- /dev/null
+++ b/demos/gtk-demo/settings-key.c
@@ -0,0 +1,165 @@
+#include "settings-key.h"
+
+/* Create an object that wraps GSettingsSchemaKey because that's a boxed type */
+struct _SettingsKey
+{
+  GObject parent_instance;
+
+  GSettings *settings;
+  GSettingsSchemaKey *key;
+};
+
+enum {
+  PROP_0,
+  PROP_NAME,
+  PROP_SETTINGS,
+  PROP_SUMMARY,
+  PROP_DESCRIPTION,
+  PROP_VALUE,
+  PROP_TYPE,
+  PROP_DEFAULT_VALUE,
+
+  N_PROPS
+};
+
+G_DEFINE_TYPE (SettingsKey, settings_key, G_TYPE_OBJECT);
+static GParamSpec *properties[N_PROPS] = { NULL, };
+
+static void
+settings_key_get_property (GObject    *object,
+                           guint       property_id,
+                           GValue     *value,
+                           GParamSpec *pspec)
+{
+  SettingsKey *self = SETTINGS_KEY (object);
+
+  switch (property_id)
+    {
+    case PROP_DESCRIPTION:
+      g_value_set_string (value, g_settings_schema_key_get_description (self->key));
+      break;
+
+    case PROP_NAME:
+      g_value_set_string (value, g_settings_schema_key_get_name (self->key));
+      break;
+
+    case PROP_SUMMARY:
+      g_value_set_string (value, g_settings_schema_key_get_summary (self->key));
+      break;
+
+    case PROP_VALUE:
+      {
+        GVariant *variant = g_settings_get_value (self->settings, g_settings_schema_key_get_name (self->key));
+        g_value_take_string (value, g_variant_print (variant, FALSE));
+        g_variant_unref (variant);
+      }
+      break;
+
+    case PROP_TYPE:
+      {
+        const GVariantType *type = g_settings_schema_key_get_value_type (self->key);
+        g_value_set_string (value, g_variant_type_peek_string (type));
+      }
+      break;
+
+    case PROP_DEFAULT_VALUE:
+      {
+        GVariant *variant = g_settings_schema_key_get_default_value (self->key);
+        g_value_take_string (value, g_variant_print (variant, FALSE));
+        g_variant_unref (variant);
+      }
+      break;
+
+    case PROP_SETTINGS:
+      g_value_set_object (value, self->settings);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+settings_key_finalize (GObject *object)
+{
+  SettingsKey *self = SETTINGS_KEY (object);
+
+  g_object_unref (self->settings);
+  g_settings_schema_key_unref (self->key);
+
+  G_OBJECT_CLASS (settings_key_parent_class)->finalize (object);
+}
+
+static void
+settings_key_class_init (SettingsKeyClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->finalize = settings_key_finalize;
+  gobject_class->get_property = settings_key_get_property;
+
+  properties[PROP_DESCRIPTION] =
+    g_param_spec_string ("description", NULL, NULL, NULL, G_PARAM_READABLE);
+  properties[PROP_NAME] =
+    g_param_spec_string ("name", NULL, NULL, NULL, G_PARAM_READABLE);
+  properties[PROP_SETTINGS] =
+    g_param_spec_object ("settings", NULL, NULL, G_TYPE_SETTINGS, G_PARAM_READABLE);
+  properties[PROP_SUMMARY] =
+    g_param_spec_string ("summary", NULL, NULL, NULL, G_PARAM_READABLE);
+  properties[PROP_VALUE] =
+    g_param_spec_string ("value", NULL, NULL, NULL, G_PARAM_READABLE);
+  properties[PROP_TYPE] =
+    g_param_spec_string ("type", NULL, NULL, NULL, G_PARAM_READABLE);
+  properties[PROP_DEFAULT_VALUE] =
+    g_param_spec_string ("default-value", NULL, NULL, NULL, G_PARAM_READABLE);
+
+  g_object_class_install_properties (gobject_class, N_PROPS, properties);
+}
+
+static void
+settings_key_init (SettingsKey *self)
+{
+}
+
+SettingsKey *
+settings_key_new (GSettings          *settings,
+                  GSettingsSchemaKey *key)
+{
+  SettingsKey *result = g_object_new (SETTINGS_TYPE_KEY, NULL);
+
+  result->settings = g_object_ref (settings);
+  result->key = g_settings_schema_key_ref (key);
+
+  return result;
+}
+
+GSettingsSchemaKey *
+settings_key_get_key (SettingsKey *self)
+{
+  return self->key;
+}
+
+GSettings *
+settings_key_get_settings (SettingsKey *self)
+{
+  return self->settings;
+}
+
+char *
+settings_key_get_search_string (SettingsKey *self)
+{
+  char *schema, *result;
+
+  g_object_get (self->settings, "schema-id", &schema, NULL);
+
+  result = g_strconcat (g_settings_schema_key_get_name (self->key), " ",
+                        g_settings_schema_key_get_summary (self->key), " ",
+                        schema,
+                        NULL);
+
+  g_free (schema);
+
+  return result;
+}
+