Use JsonObject for LdDiagramObject parameters.

Make LdDiagramObject a regular class.

4 files changed, 210 insertions, 69 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);
 }
diff --git a/liblogdiag/ld-diagram-object.h b/liblogdiag/ld-diagram-object.h
index c727602..d20f962 100644
--- a/liblogdiag/ld-diagram-object.h
+++ b/liblogdiag/ld-diagram-object.h
@@ -2,7 +2,7 @@
  * ld-diagram-object.h
  *
  * 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.
  *
@@ -53,6 +53,13 @@ struct _LdDiagramObjectClass
 
 GType ld_diagram_object_get_type (void) G_GNUC_CONST;
 
+LdDiagramObject *ld_diagram_object_new (JsonObject *storage);
+JsonObject *ld_diagram_object_get_storage (LdDiagramObject *self);
+void ld_diagram_object_set_storage (LdDiagramObject *self, JsonObject *storage);
+void ld_diagram_object_get_data (LdDiagramObject *self,
+	GValue *value, GParamSpec *pspec);
+void ld_diagram_object_set_data (LdDiagramObject *self,
+	const GValue *value, GParamSpec *pspec);
 gdouble ld_diagram_object_get_x (LdDiagramObject *self);
 gdouble ld_diagram_object_get_y (LdDiagramObject *self);
 void ld_diagram_object_set_x (LdDiagramObject *self, gdouble x);
diff --git a/liblogdiag/ld-diagram-symbol.c b/liblogdiag/ld-diagram-symbol.c
index 3308dbb..72a11a7 100644
--- a/liblogdiag/ld-diagram-symbol.c
+++ b/liblogdiag/ld-diagram-symbol.c
@@ -20,15 +20,6 @@
  * #LdDiagramSymbol is an implementation of #LdDiagramObject.
  */
 
-/*
- * LdDiagramSymbolPrivate:
- * @klass: The class of this symbol.
- */
-struct _LdDiagramSymbolPrivate
-{
-	gchar *klass;
-};
-
 enum
 {
 	PROP_0,
@@ -39,7 +30,6 @@ static void ld_diagram_symbol_get_property (GObject *object, guint property_id,
 	GValue *value, GParamSpec *pspec);
 static void ld_diagram_symbol_set_property (GObject *object, guint property_id,
 	const GValue *value, GParamSpec *pspec);
-static void ld_diagram_symbol_finalize (GObject *gobject);
 
 
 G_DEFINE_TYPE (LdDiagramSymbol, ld_diagram_symbol, LD_TYPE_DIAGRAM_OBJECT);
@@ -53,7 +43,6 @@ ld_diagram_symbol_class_init (LdDiagramSymbolClass *klass)
 	object_class = G_OBJECT_CLASS (klass);
 	object_class->get_property = ld_diagram_symbol_get_property;
 	object_class->set_property = ld_diagram_symbol_set_property;
-	object_class->finalize = ld_diagram_symbol_finalize;
 
 /**
  * LdDiagramSymbol:class:
@@ -64,42 +53,24 @@ ld_diagram_symbol_class_init (LdDiagramSymbolClass *klass)
 		"The class of this symbol.",
 		"", G_PARAM_READWRITE);
 	g_object_class_install_property (object_class, PROP_CLASS, pspec);
-
-	g_type_class_add_private (klass, sizeof (LdDiagramSymbolPrivate));
 }
 
 static void
 ld_diagram_symbol_init (LdDiagramSymbol *self)
 {
-	self->priv = G_TYPE_INSTANCE_GET_PRIVATE
-		(self, LD_TYPE_DIAGRAM_SYMBOL, LdDiagramSymbolPrivate);
-}
-
-static void
-ld_diagram_symbol_finalize (GObject *gobject)
-{
-	LdDiagramSymbol *self;
-
-	self = LD_DIAGRAM_SYMBOL (gobject);
-
-	if (self->priv->klass)
-		g_free (self->priv->klass);
-
-	/* Chain up to the parent class. */
-	G_OBJECT_CLASS (ld_diagram_symbol_parent_class)->finalize (gobject);
 }
 
 static void
 ld_diagram_symbol_get_property (GObject *object, guint property_id,
 	GValue *value, GParamSpec *pspec)
 {
-	LdDiagramSymbol *self;
+	LdDiagramObject *self;
 
-	self = LD_DIAGRAM_SYMBOL (object);
+	self = LD_DIAGRAM_OBJECT (object);
 	switch (property_id)
 	{
 	case PROP_CLASS:
-		g_value_set_string (value, ld_diagram_symbol_get_class (self));
+		ld_diagram_object_get_data (self, value, pspec);
 		break;
 	default:
 		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
@@ -110,13 +81,13 @@ static void
 ld_diagram_symbol_set_property (GObject *object, guint property_id,
 	const GValue *value, GParamSpec *pspec)
 {
-	LdDiagramSymbol *self;
+	LdDiagramObject *self;
 
-	self = LD_DIAGRAM_SYMBOL (object);
+	self = LD_DIAGRAM_OBJECT (object);
 	switch (property_id)
 	{
 	case PROP_CLASS:
-		ld_diagram_symbol_set_class (self, g_value_get_string (value));
+		ld_diagram_object_set_data (self, value, pspec);
 		break;
 	default:
 		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
@@ -126,17 +97,16 @@ ld_diagram_symbol_set_property (GObject *object, guint property_id,
 
 /**
  * ld_diagram_symbol_new:
- * @klass: The class of the new symbol.
+ * @storage: A storage backend.
  *
  * Return value: A new #LdDiagramSymbol object.
  */
 LdDiagramSymbol *
-ld_diagram_symbol_new (const gchar *klass)
+ld_diagram_symbol_new (JsonObject *storage)
 {
 	LdDiagramSymbol *self;
 
-	self = g_object_new (LD_TYPE_DIAGRAM_SYMBOL, NULL);
-	ld_diagram_symbol_set_class (self, klass);
+	self = g_object_new (LD_TYPE_DIAGRAM_SYMBOL, "storage", storage, NULL);
 	return self;
 }
 
@@ -149,12 +119,15 @@ ld_diagram_symbol_new (const gchar *klass)
 const gchar *
 ld_diagram_symbol_get_class (LdDiagramSymbol *self)
 {
+	const gchar *klass;
+
 	g_return_val_if_fail (LD_IS_DIAGRAM_SYMBOL (self), NULL);
-	return self->priv->klass;
+	g_object_get (self, "class", &klass, NULL);
+	return klass;
 }
 
 /**
- * ld_diagram_symbol_get_class:
+ * ld_diagram_symbol_set_class:
  * @self: An #LdDiagramSymbol object.
  * @klass: The class.
  *
@@ -164,8 +137,5 @@ void
 ld_diagram_symbol_set_class (LdDiagramSymbol *self, const gchar *klass)
 {
 	g_return_if_fail (LD_IS_DIAGRAM_SYMBOL (self));
-
-	if (self->priv->klass)
-		g_free (self->priv->klass);
-	self->priv->klass = g_strdup (klass);
+	g_object_set (self, "class", klass, NULL);
 }
diff --git a/liblogdiag/ld-diagram-symbol.h b/liblogdiag/ld-diagram-symbol.h
index 09d8739..f2e60e9 100644
--- a/liblogdiag/ld-diagram-symbol.h
+++ b/liblogdiag/ld-diagram-symbol.h
@@ -2,7 +2,7 @@
  * ld-diagram-symbol.h
  *
  * 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.
  *
@@ -38,7 +38,6 @@ struct _LdDiagramSymbol
 {
 /*< private >*/
 	LdDiagramObject parent_instance;
-	LdDiagramSymbolPrivate *priv;
 };
 
 /**
@@ -53,7 +52,7 @@ struct _LdDiagramSymbolClass
 
 GType ld_diagram_symbol_get_type (void) G_GNUC_CONST;
 
-LdDiagramSymbol *ld_diagram_symbol_new (const gchar *klass);
+LdDiagramSymbol *ld_diagram_symbol_new (JsonObject *storage);
 const gchar *ld_diagram_symbol_get_class (LdDiagramSymbol *self);
 void ld_diagram_symbol_set_class (LdDiagramSymbol *self, const gchar *klass);