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-rw-r--r--liblogdiag/ld-diagram-object.c205
1 files changed, 185 insertions, 20 deletions
diff --git a/liblogdiag/ld-diagram-object.c b/liblogdiag/ld-diagram-object.c
index f43e620..0254a2a 100644
--- a/liblogdiag/ld-diagram-object.c
+++ b/liblogdiag/ld-diagram-object.c
@@ -2,12 +2,14 @@
* ld-diagram-object.c
*
* This file is a part of logdiag.
- * Copyright Přemysl Janouch 2010. All rights reserved.
+ * Copyright Přemysl Janouch 2010 - 2011. All rights reserved.
*
* See the file LICENSE for licensing information.
*
*/
+#include <string.h>
+
#include "liblogdiag.h"
#include "config.h"
@@ -22,18 +24,17 @@
/*
* LdDiagramObjectPrivate:
- * @x: The X coordinate of this object.
- * @y: The Y coordinate of this object.
+ * @storage: Storage for object parameters.
*/
struct _LdDiagramObjectPrivate
{
- gdouble x;
- gdouble y;
+ JsonObject *storage;
};
enum
{
PROP_0,
+ PROP_STORAGE,
PROP_X,
PROP_Y
};
@@ -42,9 +43,10 @@ static void ld_diagram_object_get_property (GObject *object, guint property_id,
GValue *value, GParamSpec *pspec);
static void ld_diagram_object_set_property (GObject *object, guint property_id,
const GValue *value, GParamSpec *pspec);
+static void ld_diagram_object_dispose (GObject *gobject);
-G_DEFINE_ABSTRACT_TYPE (LdDiagramObject, ld_diagram_object, G_TYPE_OBJECT);
+G_DEFINE_TYPE (LdDiagramObject, ld_diagram_object, G_TYPE_OBJECT);
static void
ld_diagram_object_class_init (LdDiagramObjectClass *klass)
@@ -55,6 +57,17 @@ ld_diagram_object_class_init (LdDiagramObjectClass *klass)
object_class = G_OBJECT_CLASS (klass);
object_class->get_property = ld_diagram_object_get_property;
object_class->set_property = ld_diagram_object_set_property;
+ object_class->dispose = ld_diagram_object_dispose;
+
+/**
+ * LdDiagramObject:storage:
+ *
+ * Storage for object parameters.
+ */
+ pspec = g_param_spec_boxed ("storage", "Storage",
+ "Storage for object parameters.",
+ JSON_TYPE_OBJECT, G_PARAM_READWRITE);
+ g_object_class_install_property (object_class, PROP_STORAGE, pspec);
/**
* LdDiagramObject:x:
@@ -95,11 +108,12 @@ ld_diagram_object_get_property (GObject *object, guint property_id,
self = LD_DIAGRAM_OBJECT (object);
switch (property_id)
{
- case PROP_X:
- g_value_set_double (value, ld_diagram_object_get_x (self));
+ case PROP_STORAGE:
+ g_value_set_boxed (value, ld_diagram_object_get_storage (self));
break;
+ case PROP_X:
case PROP_Y:
- g_value_set_double (value, ld_diagram_object_get_y (self));
+ ld_diagram_object_get_data (self, value, pspec);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
@@ -115,17 +129,166 @@ ld_diagram_object_set_property (GObject *object, guint property_id,
self = LD_DIAGRAM_OBJECT (object);
switch (property_id)
{
- case PROP_X:
- ld_diagram_object_set_x (self, g_value_get_double (value));
+ case PROP_STORAGE:
+ ld_diagram_object_set_storage (self, g_value_get_boxed (value));
break;
+ case PROP_X:
case PROP_Y:
- ld_diagram_object_set_y (self, g_value_get_double (value));
+ ld_diagram_object_set_data (self, value, pspec);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
+static void
+ld_diagram_object_dispose (GObject *gobject)
+{
+ LdDiagramObject *self;
+
+ self = LD_DIAGRAM_OBJECT (gobject);
+ if (self->priv->storage)
+ {
+ json_object_unref (self->priv->storage);
+ self->priv->storage = NULL;
+ }
+
+ /* Chain up to the parent class. */
+ G_OBJECT_CLASS (ld_diagram_object_parent_class)->dispose (gobject);
+}
+
+
+/**
+ * ld_diagram_object_new:
+ * @storage: A storage backend.
+ *
+ * Return value: A new #LdDiagramObject object.
+ */
+LdDiagramObject *
+ld_diagram_object_new (JsonObject *storage)
+{
+ LdDiagramObject *self;
+
+ self = g_object_new (LD_TYPE_DIAGRAM_OBJECT, "storage", storage, NULL);
+ return self;
+}
+
+/**
+ * ld_diagram_object_get_storage:
+ * @self: An #LdDiagramObject object.
+ *
+ * Get the storage for object parameters.
+ *
+ * Return value: (transfer none): A #JsonObject boxed type.
+ */
+JsonObject *
+ld_diagram_object_get_storage (LdDiagramObject *self)
+{
+ g_return_val_if_fail (LD_IS_DIAGRAM_OBJECT (self), NULL);
+ if (!self->priv->storage)
+ self->priv->storage = json_object_new ();
+ return self->priv->storage;
+}
+
+/**
+ * ld_diagram_object_set_storage:
+ * @self: An #LdDiagramObject object.
+ * @storage: (transfer none): A #JsonObject boxed type.
+ *
+ * Set the storage for object parameters.
+ */
+void
+ld_diagram_object_set_storage (LdDiagramObject *self, JsonObject *storage)
+{
+ g_return_if_fail (LD_IS_DIAGRAM_OBJECT (self));
+
+ if (self->priv->storage)
+ json_object_unref (self->priv->storage);
+
+ if (storage)
+ self->priv->storage = json_object_ref (storage);
+ else
+ self->priv->storage = NULL;
+}
+
+/**
+ * ld_diagram_object_get_data:
+ * @self: An #LdDiagramObject object.
+ * @value: (out): Where the data will be stored.
+ * @pspec: The parameter to read data for.
+ *
+ * Retrieve data from internal storage.
+ */
+void
+ld_diagram_object_get_data (LdDiagramObject *self,
+ GValue *value, GParamSpec *pspec)
+{
+ JsonObject *storage;
+ JsonNode *node;
+ const gchar *name;
+ GValue json_value;
+ gboolean result;
+
+ g_return_if_fail (LD_IS_DIAGRAM_OBJECT (self));
+ g_return_if_fail (G_IS_VALUE (value));
+ g_return_if_fail (G_IS_PARAM_SPEC (pspec));
+
+ storage = ld_diagram_object_get_storage (self);
+ name = g_param_spec_get_name (pspec);
+ node = json_object_get_member (storage, name);
+ if (!node || json_node_is_null (node))
+ goto ld_diagram_object_get_data_default;
+ if (!JSON_NODE_HOLDS_VALUE (node))
+ goto ld_diagram_object_get_data_warn;
+
+ memset (&json_value, 0, sizeof (json_value));
+ json_node_get_value (node, &json_value);
+ result = g_param_value_convert (pspec, &json_value, value, FALSE);
+ g_value_unset (&json_value);
+ if (!result)
+ goto ld_diagram_object_get_data_warn;
+ return;
+
+ld_diagram_object_get_data_warn:
+ g_warning ("%s: unable to set property `%s' of type `%s'"
+ " from node of type `%s'; setting the property to it's default value",
+ G_STRFUNC, name, G_PARAM_SPEC_TYPE_NAME (pspec),
+ json_node_type_name (node));
+
+ld_diagram_object_get_data_default:
+ g_param_value_set_default (pspec, value);
+ g_object_set_property (G_OBJECT (self), name, value);
+}
+
+/**
+ * ld_diagram_object_set_data:
+ * @self: An #LdDiagramObject object.
+ * @value: The data.
+ * @pspec: The parameter to set data for.
+ *
+ * Set data in internal storage.
+ */
+void
+ld_diagram_object_set_data (LdDiagramObject *self,
+ const GValue *value, GParamSpec *pspec)
+{
+ JsonObject *storage;
+ const gchar *name;
+ JsonNode *node;
+
+ g_return_if_fail (LD_IS_DIAGRAM_OBJECT (self));
+ g_return_if_fail (G_IS_VALUE (value));
+ g_return_if_fail (G_IS_PARAM_SPEC (pspec));
+
+ storage = ld_diagram_object_get_storage (self);
+ name = g_param_spec_get_name (pspec);
+
+ node = json_node_new (JSON_NODE_VALUE);
+ json_node_set_value (node, value);
+ /* We have to remove it first due to a bug in json-glib. */
+ json_object_remove_member (storage, name);
+ json_object_set_member (storage, name, node);
+}
/**
* ld_diagram_object_get_x:
@@ -136,8 +299,11 @@ ld_diagram_object_set_property (GObject *object, guint property_id,
gdouble
ld_diagram_object_get_x (LdDiagramObject *self)
{
+ gdouble x;
+
g_return_val_if_fail (LD_IS_DIAGRAM_OBJECT (self), 0);
- return self->priv->x;
+ g_object_get (self, "x", &x, NULL);
+ return x;
}
/**
@@ -149,8 +315,11 @@ ld_diagram_object_get_x (LdDiagramObject *self)
gdouble
ld_diagram_object_get_y (LdDiagramObject *self)
{
+ gdouble y;
+
g_return_val_if_fail (LD_IS_DIAGRAM_OBJECT (self), 0);
- return self->priv->y;
+ g_object_get (self, "y", &y, NULL);
+ return y;
}
/**
@@ -164,9 +333,7 @@ void
ld_diagram_object_set_x (LdDiagramObject *self, gdouble x)
{
g_return_if_fail (LD_IS_DIAGRAM_OBJECT (self));
- self->priv->x = x;
-
- g_object_notify (G_OBJECT (self), "x");
+ g_object_set (self, "x", x, NULL);
}
/**
@@ -180,7 +347,5 @@ void
ld_diagram_object_set_y (LdDiagramObject *self, gdouble y)
{
g_return_if_fail (LD_IS_DIAGRAM_OBJECT (self));
- self->priv->y = y;
-
- g_object_notify (G_OBJECT (self), "y");
+ g_object_set (self, "y", y, NULL);
}