[gnome-photos] Add PhotosPreviewModel



commit cfbab1c037f576b77a4c49bef604e983a8985f65
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Sep 2 00:43:25 2013 +0200

    Add PhotosPreviewModel

 src/Makefile.am            |    2 +
 src/photos-preview-model.c |  105 ++++++++++++++++++++++++++++++++++++++++++++
 src/photos-preview-model.h |   72 ++++++++++++++++++++++++++++++
 3 files changed, 179 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 43b7cac..2cc64a3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -130,6 +130,8 @@ gnome_photos_SOURCES = \
        photos-organize-collection-model.h \
        photos-organize-collection-view.c \
        photos-organize-collection-view.h \
+       photos-preview-model.c \
+       photos-preview-model.h \
        photos-preview-nav-buttons.c \
        photos-preview-nav-buttons.h \
        photos-preview-view.c \
diff --git a/src/photos-preview-model.c b/src/photos-preview-model.c
new file mode 100644
index 0000000..bd5ffa0
--- /dev/null
+++ b/src/photos-preview-model.c
@@ -0,0 +1,105 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+
+#include "config.h"
+
+#include <glib.h>
+
+#include "photos-base-item.h"
+#include "photos-item-manager.h"
+#include "photos-preview-model.h"
+#include "photos-query.h"
+#include "photos-view-model.h"
+
+
+struct _PhotosPreviewModelPrivate
+{
+  PhotosBaseManager *item_mngr;
+};
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (PhotosPreviewModel, photos_preview_model, GTK_TYPE_TREE_MODEL_FILTER);
+
+
+static gboolean
+photos_preview_model_visible (GtkTreeModel *model, GtkTreeIter *iter, gpointer user_data)
+{
+  PhotosPreviewModel *self = PHOTOS_PREVIEW_MODEL (user_data);
+  PhotosBaseItem *item;
+  gboolean ret_val = FALSE;
+  const gchar *identifier;
+  gchar *id;
+
+  gtk_tree_model_get (model, iter, PHOTOS_VIEW_MODEL_URN, &id, -1);
+  if (id == NULL)
+    goto out;
+
+  item = PHOTOS_BASE_ITEM (photos_base_manager_get_object_by_id (self->priv->item_mngr, id));
+  identifier = photos_base_item_get_identifier (item);
+  if (identifier != NULL && g_str_has_prefix (identifier, PHOTOS_QUERY_COLLECTIONS_IDENTIFIER))
+    goto out;
+
+  ret_val = TRUE;
+
+ out:
+  g_free (id);
+  return ret_val;
+}
+
+
+static void
+photos_preview_model_dispose (GObject *object)
+{
+  PhotosPreviewModel *self = PHOTOS_PREVIEW_MODEL (object);
+
+  g_clear_object (&self->priv->item_mngr);
+
+  G_OBJECT_CLASS (photos_preview_model_parent_class)->dispose (object);
+}
+
+
+static void
+photos_preview_model_init (PhotosPreviewModel *self)
+{
+  PhotosPreviewModelPrivate *priv;
+
+  self->priv = photos_preview_model_get_instance_private (self);
+  priv = self->priv;
+
+  priv->item_mngr = photos_item_manager_dup_singleton ();
+  gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (self), photos_preview_model_visible, self, 
NULL);
+}
+
+
+static void
+photos_preview_model_class_init (PhotosPreviewModelClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->dispose = photos_preview_model_dispose;
+}
+
+
+GtkTreeModel *
+photos_preview_model_new (GtkTreeModel *child_model)
+{
+  return g_object_new (PHOTOS_TYPE_PREVIEW_MODEL, "child-model", child_model, NULL);
+}
diff --git a/src/photos-preview-model.h b/src/photos-preview-model.h
new file mode 100644
index 0000000..8816efd
--- /dev/null
+++ b/src/photos-preview-model.h
@@ -0,0 +1,72 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2013 Red Hat, Inc.
+ *
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+
+#ifndef PHOTOS_PREVIEW_MODEL_H
+#define PHOTOS_PREVIEW_MODEL_H
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define PHOTOS_TYPE_PREVIEW_MODEL (photos_preview_model_get_type ())
+
+#define PHOTOS_PREVIEW_MODEL(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
+   PHOTOS_TYPE_PREVIEW_MODEL, PhotosPreviewModel))
+
+#define PHOTOS_PREVIEW_MODEL_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST ((klass), \
+   PHOTOS_TYPE_PREVIEW_MODEL, PhotosPreviewModelClass))
+
+#define PHOTOS_IS_PREVIEW_MODEL(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
+   PHOTOS_TYPE_PREVIEW_MODEL))
+
+#define PHOTOS_IS_PREVIEW_MODEL_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE ((klass), \
+   PHOTOS_TYPE_PREVIEW_MODEL))
+
+#define PHOTOS_PREVIEW_MODEL_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), \
+   PHOTOS_TYPE_PREVIEW_MODEL, PhotosPreviewModelClass))
+
+typedef struct _PhotosPreviewModel        PhotosPreviewModel;
+typedef struct _PhotosPreviewModelClass   PhotosPreviewModelClass;
+typedef struct _PhotosPreviewModelPrivate PhotosPreviewModelPrivate;
+
+struct _PhotosPreviewModel
+{
+  GtkTreeModelFilter parent_instance;
+  PhotosPreviewModelPrivate *priv;
+};
+
+struct _PhotosPreviewModelClass
+{
+  GtkTreeModelFilterClass parent_class;
+};
+
+GType             photos_preview_model_get_type               (void) G_GNUC_CONST;
+
+GtkTreeModel     *photos_preview_model_new                    (GtkTreeModel *child_model);
+
+G_END_DECLS
+
+#endif /* PHOTOS_PREVIEW_MODEL_H */


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