[gegl/property-keys: 2/4] add utility paramspec factories with varargs

[Øyvind Kolås <ok src gnome org>]

commit 3008098e6ae5eca0d36826326e3c7e9bac41b9ae
Author: Øyvind Kolås <pippin gimp org>
Date:   Wed May 14 05:56:26 2014 +0200

    add utility paramspec factories with varargs
    
    These functions makes a key/value based chanting API possible.

 gegl/gegl-operations-util.h           |    2 +-
 gegl/property-types/gegl-paramspecs.c |  432 +++++++++++++++++++++++++++++++++
 gegl/property-types/gegl-paramspecs.h |   15 ++
 3 files changed, 448 insertions(+), 1 deletions(-)
---
diff --git a/gegl/gegl-operations-util.h b/gegl/gegl-operations-util.h
index 9437525..27e4635 100644
--- a/gegl/gegl-operations-util.h
+++ b/gegl/gegl-operations-util.h
@@ -99,7 +99,7 @@ gegl_operation_get_property_key (const gchar *operation_type,
  * @n_keys: (out caller-allocates): return location for number of property
  * keys.
  *
- * Return value: (transfer container) (array length=n_properties_p): An allocated NULL terminated array of 
property-key names. The list should be freed with g_free after use.
+ * Return value: (transfer container) (array length=n_keys): An allocated NULL terminated array of 
property-key names. The list should be freed with g_free after use.
  */
 gchar **
 gegl_operation_list_property_keys (const gchar *operation_type,
diff --git a/gegl/property-types/gegl-paramspecs.c b/gegl/property-types/gegl-paramspecs.c
index 2438306..8713fd4 100644
--- a/gegl/property-types/gegl-paramspecs.c
+++ b/gegl/property-types/gegl-paramspecs.c
@@ -25,6 +25,9 @@
 #include <glib.h>
 #include <glib-object.h>
 #include "gegl-paramspecs.h"
+#include "gegl-types.h"
+#include <babl/babl.h>
+#include "gegl-color.h"
 
 static void       gegl_param_double_class_init (GParamSpecClass *klass);
 static void       gegl_param_double_init       (GParamSpec      *pspec);
@@ -740,3 +743,432 @@ gegl_param_spec_format (const gchar *name,
 
   return G_PARAM_SPEC (pspec);
 }
+
+GParamSpec *
+gegl_param_spec_double_from_vararg (const char *name, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+  gdouble min_value     = DBL_MIN,
+          max_value     = DBL_MAX,
+          default_value = 0.0;
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, name);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if      (g_str_equal (key, "min"))
+      min_value = va_arg (var_args, double);
+    else if (g_str_equal (key, "max"))
+      max_value = va_arg (var_args, double);
+    else if (g_str_equal (key, "default"))
+      default_value = va_arg (var_args, double);
+    else if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+  pspec = g_param_spec_double (name, nick, blurb,
+                               min_value, max_value, default_value,
+                               (GParamFlags) (
+                               G_PARAM_READWRITE |
+                               G_PARAM_CONSTRUCT |
+                               GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
+
+GParamSpec *
+gegl_param_spec_int_from_vararg (const char *name, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+  gint min_value     = G_MININT32,
+       max_value     = G_MAXINT32,
+       default_value = 0;
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, name);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if      (g_str_equal (key, "min"))
+      min_value = va_arg (var_args, int);
+    else if (g_str_equal (key, "max"))
+      max_value = va_arg (var_args, int);
+    else if (g_str_equal (key, "default"))
+      default_value = va_arg (var_args, int);
+    else if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+  pspec = g_param_spec_int (name, nick, blurb,
+                            min_value, max_value, default_value,
+                            (GParamFlags) (
+                            G_PARAM_READWRITE |
+                            G_PARAM_CONSTRUCT |
+                            GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
+
+GParamSpec *
+gegl_param_spec_boolean_from_vararg (const char *name, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+  gboolean default_value = FALSE;
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, name);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if (g_str_equal (key, "default"))
+      default_value = va_arg (var_args, gboolean);
+    else if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+  pspec = g_param_spec_boolean (name, nick, blurb,
+                            default_value,
+                            (GParamFlags) (
+                            G_PARAM_READWRITE |
+                            G_PARAM_CONSTRUCT |
+                            GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
+
+GParamSpec *
+gegl_param_spec_string_from_vararg (const char *name, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+  const gchar *default_value = "";
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, name);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if (g_str_equal (key, "default"))
+      default_value = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+  pspec = g_param_spec_string (name, nick, blurb,
+                            default_value,
+                            (GParamFlags) (
+                            G_PARAM_READWRITE |
+                            G_PARAM_CONSTRUCT |
+                            GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
+
+GParamSpec *
+gegl_param_spec_enum_from_vararg (const char *name, GType enum_type, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+  int default_value = 0;
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, enum_type);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if (g_str_equal (key, "default"))
+      default_value = va_arg (var_args, int);
+    else if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+
+  pspec = g_param_spec_enum (name, nick, blurb,
+                             enum_type,
+                             default_value,
+                             (GParamFlags) (
+                             G_PARAM_READWRITE |
+                             G_PARAM_CONSTRUCT |
+                             GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
+
+GParamSpec *
+gegl_param_spec_pointer_from_vararg (const char *name, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, name);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+  pspec = g_param_spec_pointer (name, nick, blurb,
+                            (GParamFlags) (
+                            G_PARAM_READWRITE |
+                            G_PARAM_CONSTRUCT |
+                            GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
+
+GParamSpec *
+gegl_param_spec_object_from_vararg (const char *name, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, name);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+  pspec = g_param_spec_object (name, nick, blurb,
+                            G_TYPE_OBJECT,
+                            (GParamFlags) (
+                            G_PARAM_READWRITE |
+                            G_PARAM_CONSTRUCT |
+                            GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
+
+GParamSpec *
+gegl_param_spec_format_from_vararg (const char *name, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, name);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+  pspec = gegl_param_spec_format (name, nick, blurb,
+                            (GParamFlags) (
+                            G_PARAM_READWRITE |
+                            G_PARAM_CONSTRUCT |
+                            GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
+
+GParamSpec *
+gegl_param_spec_color_from_vararg (const char *name, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+  const gchar *default_value = "";
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, name);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if (g_str_equal (key, "default"))
+      default_value = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+  pspec = gegl_param_spec_color_from_string (name, nick, blurb,
+                            default_value,
+                            (GParamFlags) (
+                            G_PARAM_READWRITE |
+                            G_PARAM_CONSTRUCT |
+                            GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
+
+GParamSpec *
+gegl_param_spec_seed_from_vararg (const char *name, ...)
+{
+  const gchar *nick  = name,
+              *blurb = "";
+
+  GParamSpec *pspec;
+  GHashTable *ht;
+
+  va_list var_args;
+  const gchar *key;
+
+  ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+  va_start (var_args, name);
+  key = va_arg (var_args, const char*);
+  while (key)
+  {
+    if (g_str_equal (key, "blurb"))
+      blurb = va_arg (var_args, const gchar *);
+    else if (g_str_equal (key, "nick"))
+      nick = va_arg (var_args, const gchar *);
+    else
+    {
+      const char *value = va_arg (var_args, const gchar*);
+      g_hash_table_insert (ht, g_strdup (key), g_strdup (value));
+    }
+    key = va_arg (var_args, const char*);
+  }
+  va_end (var_args);
+  pspec = gegl_param_spec_seed (name, nick, blurb,
+                            (GParamFlags) (
+                            G_PARAM_READWRITE |
+                            G_PARAM_CONSTRUCT |
+                            GEGL_PARAM_PAD_INPUT));
+  g_param_spec_set_qdata_full (pspec, g_quark_from_static_string ("meta"),
+                               ht, (GDestroyNotify)g_hash_table_destroy);
+  return pspec;
+}
diff --git a/gegl/property-types/gegl-paramspecs.h b/gegl/property-types/gegl-paramspecs.h
index 6142e46..1d3eeb3 100644
--- a/gegl/property-types/gegl-paramspecs.h
+++ b/gegl/property-types/gegl-paramspecs.h
@@ -374,5 +374,20 @@ GParamSpec * gegl_param_spec_format (const gchar *name,
                                      const gchar *blurb,
                                      GParamFlags  flags);
 
+
+
+GParamSpec * gegl_param_spec_double_from_vararg (const char *name, ...);
+GParamSpec * gegl_param_spec_int_from_vararg (const char *name, ...);
+GParamSpec * gegl_param_spec_string_from_vararg (const char *name, ...);
+GParamSpec * gegl_param_spec_boolean_from_vararg (const char *name, ...);
+GParamSpec * gegl_param_spec_pointer_from_vararg (const char *name, ...);
+GParamSpec * gegl_param_spec_enum_from_vararg (const char *name, GType enum_type, ...);
+GParamSpec * gegl_param_spec_color_from_vararg (const char *name, ...);
+GParamSpec * gegl_param_spec_seed_from_vararg (const char *name, ...);
+GParamSpec * gegl_param_spec_object_from_vararg (const char *name, ...);
+GParamSpec *
+gegl_param_spec_format_from_vararg (const char *name, ...);
+
+
 G_END_DECLS
 #endif  /*  __GEGL_PARAM_SPECS_H__  */