resource: Add a resource for files

4 files changed, 235 insertions, 0 deletions

diff --git a/libgame/Makefile.am b/libgame/Makefile.am
index a1fa703..fe88c51 100644
--- a/libgame/Makefile.am
+++ b/libgame/Makefile.am
@@ -22,6 +22,7 @@ libgame_@LIBGAME_VERS@_la_SOURCES =		\
 		game-colored.c			\
 		game-container.c		\
 		game-data-resource.c		\
+		game-file-resource.c		\
 		game-filter.c			\
 		game-game.c			\
 		game-geom-basics.c		\
@@ -60,6 +61,7 @@ basic_headers =					\
 		game-colored.h			\
 		game-container.h		\
 		game-data-resource.h		\
+		game-file-resource.h		\
 		game-filter.h			\
 		game-game.h			\
 		game-geom-basics.h		\
diff --git a/libgame/game-file-resource.c b/libgame/game-file-resource.c
new file mode 100644
index 0000000..0f200cc
--- /dev/null
+++ b/libgame/game-file-resource.c
@@ -0,0 +1,176 @@
+/*
+ *  Copyright (C) 2011 Benjamin Otte <otte@gnome.org>
+ *
+ *  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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "game-private.h"
+
+#include "game-file-resource.h"
+
+#include "game-portable.h"
+
+enum {
+  PROP_0,
+  PROP_FILENAME
+};
+
+G_DEFINE_TYPE (GameFileResource, game_file_resource, GAME_TYPE_DATA_RESOURCE)
+
+static void
+game_file_resource_get_property (GObject *object, guint param_id, GValue *value, 
+    GParamSpec * pspec)
+{
+  GameFileResource *resource = GAME_FILE_RESOURCE (object);
+  
+  switch (param_id) {
+    case PROP_FILENAME:
+      g_value_set_string (value, resource->filename);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+  }
+}
+
+static void
+game_file_resource_set_property (GObject *object, guint param_id, const GValue *value,
+    GParamSpec *pspec)
+{
+  GameFileResource *resource = GAME_FILE_RESOURCE (object);
+  
+  switch (param_id) {
+    case PROP_FILENAME:
+      game_file_resource_set_filename (resource, g_value_get_string (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
+      break;
+  }
+}
+
+static void
+game_file_resource_dispose (GObject *object)
+{
+  GameFileResource *resource = GAME_FILE_RESOURCE (object);
+
+  game_file_resource_set_filename (resource, NULL);
+
+  G_OBJECT_CLASS (game_file_resource_parent_class)->dispose (object);
+}
+
+static gboolean
+game_file_resource_load (GameResource *res, GVariantIter *iter)
+{
+  GameFileResource *resource = GAME_FILE_RESOURCE (res);
+  const char *filename;
+
+  if (!GAME_RESOURCE_CLASS (game_file_resource_parent_class)->load (res, iter))
+    return FALSE;
+
+  if (!g_variant_iter_next (iter, "&s", &filename))
+    return FALSE;
+
+  game_file_resource_set_filename (resource, filename);
+
+  return TRUE;
+}
+
+static void
+game_file_resource_save (GameResource *res, GVariantBuilder *builder)
+{
+  GameFileResource *resource = GAME_FILE_RESOURCE (res);
+
+  GAME_RESOURCE_CLASS (game_file_resource_parent_class)->save (res, builder);
+
+  g_variant_builder_add (builder, "s", resource->filename);
+}
+
+static void
+game_file_resource_class_init (GameFileResourceClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GameResourceClass *resource_class = GAME_RESOURCE_CLASS (klass);
+
+  object_class->set_property = game_file_resource_set_property;
+  object_class->get_property = game_file_resource_get_property;
+  object_class->dispose = game_file_resource_dispose;
+  
+  g_object_class_install_property (object_class, PROP_FILENAME,
+      g_param_spec_string ("filename", _("file name"), _("file providing data for this resource"),
+	  NULL, G_PARAM_READWRITE));
+
+  resource_class->load = game_file_resource_load;
+  resource_class->save = game_file_resource_save;
+}
+
+static void
+game_file_resource_init (GameFileResource *resource)
+{
+}
+
+const char *
+game_file_resource_get_filename (GameFileResource *resource)
+{
+  g_return_val_if_fail (GAME_IS_FILE_RESOURCE (resource), NULL);
+
+  return resource->filename;
+}
+
+void
+game_file_resource_set_filename (GameFileResource *resource,
+                                 const char *      filename)
+{
+  const char *real_name;
+
+  g_return_if_fail (GAME_IS_FILE_RESOURCE (resource));
+
+  g_free (resource->filename);
+  resource->filename = g_strdup (filename);
+
+  if (filename == NULL)
+    real_name = NULL;
+  else if (g_path_is_absolute (filename))
+    real_name = g_strdup (filename);
+  else
+    real_name = g_build_filename (game_get_data_dir (),
+                                  game_game_get_name (GAME_OBJECT (resource)->game),
+                                  //"resources",
+                                  filename,
+                                  NULL);
+
+  if (real_name)
+    {
+      GError *error = NULL;
+      char *data;
+      gsize size;
+
+      if (!g_file_get_contents (real_name, &data, &size, &error))
+        {
+          g_warning ("Did not find resource `%s': %s", resource->filename, error->message);
+          data = NULL;
+          size = 0;
+        }
+      
+      game_data_resource_set_data (GAME_DATA_RESOURCE (resource), (guchar *) data, size);
+    }
+  else
+    {
+      game_data_resource_set_data (GAME_DATA_RESOURCE (resource), NULL, 0);
+    }
+
+  g_object_notify (G_OBJECT (resource), "filename");
+}
+
diff --git a/libgame/game-file-resource.h b/libgame/game-file-resource.h
new file mode 100644
index 0000000..116c295
--- /dev/null
+++ b/libgame/game-file-resource.h
@@ -0,0 +1,56 @@
+/*
+ *  Copyright (C) 2011 Benjamin Otte <otte@gnome.org>
+ *
+ *  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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GAME_FILE_RESOURCE_H__
+#define __GAME_FILE_RESOURCE_H__
+
+#include <libgame/game-data-resource.h>
+
+G_BEGIN_DECLS
+
+#define GAME_TYPE_FILE_RESOURCE         (game_file_resource_get_type ())
+#define GAME_FILE_RESOURCE(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), GAME_TYPE_FILE_RESOURCE, GameFileResource))
+#define GAME_FILE_RESOURCE_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), GAME_TYPE_FILE_RESOURCE, GameFileResourceClass))
+#define GAME_IS_FILE_RESOURCE(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), GAME_TYPE_FILE_RESOURCE))
+#define GAME_IS_FILE_RESOURCE_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), GAME_TYPE_FILE_RESOURCE))
+#define GAME_FILE_RESOURCE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GAME_TYPE_FILE_RESOURCE, GameFileResourceClass))
+
+typedef struct _GameFileResource GameFileResource;
+typedef struct _GameFileResourceClass GameFileResourceClass;
+
+struct _GameFileResource {
+  GameDataResource      data_resource;
+
+  /*< private >*/
+  char *                filename;
+};
+
+struct _GameFileResourceClass {
+  GameDataResourceClass data_resource_class;
+};
+
+GType		game_file_resource_get_type		(void) G_GNUC_CONST;
+
+const char *    game_file_resource_get_filename         (GameFileResource *   resource);
+void            game_file_resource_set_filename         (GameFileResource *   resource,
+                                                         const char *         filename);
+
+
+G_END_DECLS
+
+#endif /* __GAME_FILE_RESOURCE_H__ */
diff --git a/libgame/libgame.h b/libgame/libgame.h
index 3c7c3e2..6e4ba66 100644
--- a/libgame/libgame.h
+++ b/libgame/libgame.h
@@ -29,6 +29,7 @@
 #include <libgame/game-colored.h>
 #include <libgame/game-container.h>
 #include <libgame/game-data-resource.h>
+#include <libgame/game-file-resource.h>
 #include <libgame/game-filter.h>
 #include <libgame/game-game.h>
 #include <libgame/game-geom-basics.h>