--- /dev/null
+/*
+ * color-history-model.c
+ * Copyright (C) 2008-2009 Jim Evins <evins@snaught.com>.
+ *
+ * This file is part of gLabels.
+ *
+ * gLabels is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * gLabels is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with gLabels. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "color-history-model.h"
+
+#include <gio/gio.h>
+
+#include "marshal.h"
+
+
+/*========================================================*/
+/* Private types. */
+/*========================================================*/
+
+struct _glColorHistoryModelPrivate {
+
+ GSettings *history;
+
+ guint max_n;
+};
+
+enum {
+ CHANGED,
+ LAST_SIGNAL
+};
+
+
+/*========================================================*/
+/* Private globals. */
+/*========================================================*/
+
+static guint signals[LAST_SIGNAL] = {0};
+
+
+/*========================================================*/
+/* Private function prototypes. */
+/*========================================================*/
+
+static void gl_color_history_model_finalize (GObject *object);
+
+static void history_changed_cb (glColorHistoryModel *this);
+
+static guint *get_color_array (glColorHistoryModel *this,
+ guint *n_elements);
+static void set_color_array (glColorHistoryModel *this,
+ guint *array,
+ guint n_elements);
+
+
+/*****************************************************************************/
+/* Object infrastructure. */
+/*****************************************************************************/
+G_DEFINE_TYPE (glColorHistoryModel, gl_color_history_model, G_TYPE_OBJECT)
+
+
+/*****************************************************************************/
+/* Class Init Function. */
+/*****************************************************************************/
+static void
+gl_color_history_model_class_init (glColorHistoryModelClass *class)
+{
+ GObjectClass *gobject_class = (GObjectClass *) class;
+
+ gl_color_history_model_parent_class = g_type_class_peek_parent (class);
+
+ gobject_class->finalize = gl_color_history_model_finalize;
+
+ signals[CHANGED] =
+ g_signal_new ("changed",
+ G_OBJECT_CLASS_TYPE (gobject_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (glColorHistoryModelClass, changed),
+ NULL, NULL,
+ gl_marshal_VOID__VOID,
+ G_TYPE_NONE,
+ 0);
+}
+
+
+/*****************************************************************************/
+/* Object Instance Init Function. */
+/*****************************************************************************/
+static void
+gl_color_history_model_init (glColorHistoryModel *this)
+{
+ this->priv = g_new0 (glColorHistoryModelPrivate, 1);
+
+ this->priv->history = g_settings_new ("org.gnome.glabels-3.history");
+
+ g_return_if_fail (this->priv->history != NULL);
+
+ g_signal_connect_swapped (G_OBJECT (this->priv->history),
+ "changed::recent-colors",
+ G_CALLBACK (history_changed_cb), this);
+}
+
+
+/*****************************************************************************/
+/* Finalize Method. */
+/*****************************************************************************/
+static void
+gl_color_history_model_finalize (GObject *object)
+{
+ glColorHistoryModel *this;
+
+ g_return_if_fail (object && IS_GL_COLOR_HISTORY_MODEL (object));
+ this = GL_COLOR_HISTORY_MODEL (object);
+
+ g_object_unref (G_OBJECT(this->priv->history));
+ g_free (this->priv);
+
+ G_OBJECT_CLASS (gl_color_history_model_parent_class)->finalize (object);
+}
+
+
+/*****************************************************************************/
+/** New Object Generator. */
+/*****************************************************************************/
+glColorHistoryModel *
+gl_color_history_model_new (guint n)
+{
+ glColorHistoryModel *this;
+
+ this = g_object_new (TYPE_GL_COLOR_HISTORY_MODEL, NULL);
+
+ this->priv->max_n = n;
+
+ return this;
+}
+
+
+/*****************************************************************************/
+/* Add color to history. */
+/*****************************************************************************/
+void
+gl_color_history_model_add_color (glColorHistoryModel *this,
+ guint color)
+{
+ guint *old;
+ guint *new;
+ guint i, n;
+
+ old = get_color_array (this, &n);
+
+ new = g_new0 (guint, this->priv->max_n);
+
+ new[0] = color;
+
+ for ( i = 0; (i < (this->priv->max_n-1)) && (i < n); i++ )
+ {
+ new[i+1] = old[i];
+ }
+
+ set_color_array (this, new, i+1);
+
+ g_free (old);
+ g_free (new);
+}
+
+
+/*****************************************************************************/
+/* History changed callback. */
+/*****************************************************************************/
+static void
+history_changed_cb (glColorHistoryModel *this)
+{
+ g_signal_emit (G_OBJECT(this), signals[CHANGED], 0);
+}
+
+
+/*****************************************************************************/
+/* Get list of colors. */
+/*****************************************************************************/
+static guint *
+get_color_array (glColorHistoryModel *this,
+ guint *n_elements)
+{
+ GVariant *value;
+ GVariant *child_value;
+ gsize i;
+ guint *array;
+
+ value = g_settings_get_value (this->priv->history, "recent-colors");
+ *n_elements = g_variant_n_children (value);
+
+ array = g_new0 (guint, *n_elements);
+
+ for ( i = 0; i < *n_elements; i++ )
+ {
+ child_value = g_variant_get_child_value (value, i);
+ array[i] = g_variant_get_uint32 (child_value);
+ g_variant_unref (child_value);
+ }
+
+ g_variant_unref (value);
+
+ return array;
+}
+
+
+/*****************************************************************************/
+/* Set list of colors. */
+/*****************************************************************************/
+static void
+set_color_array (glColorHistoryModel *this,
+ guint *array,
+ guint n_elements)
+{
+ GVariant *value;
+ GVariant **child_values;
+ gsize i;
+
+ child_values = g_new (GVariant *, n_elements);
+
+ for ( i = 0; i < n_elements; i++ )
+ {
+ child_values[i] = g_variant_new_uint32 (array[i]);
+ }
+
+ value = g_variant_new_array (G_VARIANT_TYPE_UINT32, child_values, n_elements);
+
+ g_settings_set_value (this->priv->history, "recent-colors", value);
+
+ g_free (child_values);
+}
+
+
+/*****************************************************************************/
+/* Get color. */
+/*****************************************************************************/
+guint
+gl_color_history_model_get_color (glColorHistoryModel *this,
+ guint i)
+{
+ guint *array;
+ guint color = 0;
+ guint n;
+
+ array = get_color_array (this, &n);
+ if ( array && (i < n) )
+ {
+ color = array[i];
+ }
+ g_free (array);
+
+ return color;
+}
+
+
+
+
+/*
+ * Local Variables: -- emacs
+ * mode: C -- emacs
+ * c-basic-offset: 8 -- emacs
+ * tab-width: 8 -- emacs
+ * indent-tabs-mode: nil -- emacs
+ * End: -- emacs
+ */
projects / glabels / blobdiff