[gtk+/gtk-style-context: 106/251] GtkStyleSet: Add API to map symbolic colors.

[Carlos Garnacho <carlosg src gnome org>]

commit f9981e0103cfdb1141288c4fe4e3217464bceaac
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Jun 25 19:37:54 2010 +0200

    GtkStyleSet: Add API to map symbolic colors.

 gtk/gtkstyleset.c |   67 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 gtk/gtkstyleset.h |   10 +++++--
 2 files changed, 74 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkstyleset.c b/gtk/gtkstyleset.c
index 5d8a856..be07f63 100644
--- a/gtk/gtkstyleset.c
+++ b/gtk/gtkstyleset.c
@@ -48,6 +48,7 @@ struct PropertyData
 
 struct GtkStyleSetPrivate
 {
+  GHashTable *color_map;
   GHashTable *properties;
 };
 
@@ -126,6 +127,9 @@ gtk_style_set_finalize (GObject *object)
   priv = GTK_STYLE_SET_GET_PRIVATE (object);
   g_hash_table_destroy (priv->properties);
 
+  if (priv->color_map)
+    g_hash_table_destroy (priv->color_map);
+
   G_OBJECT_CLASS (gtk_style_set_parent_class)->finalize (object);
 }
 
@@ -260,6 +264,47 @@ gtk_style_set_new (void)
   return g_object_new (GTK_TYPE_STYLE_SET, NULL);
 }
 
+void
+gtk_style_set_map_color (GtkStyleSet      *set,
+			 const gchar      *name,
+			 GtkSymbolicColor *color)
+{
+  GtkStyleSetPrivate *priv;
+
+  g_return_if_fail (GTK_IS_STYLE_SET (set));
+  g_return_if_fail (name != NULL);
+  g_return_if_fail (color != NULL);
+
+  priv = GTK_STYLE_SET_GET_PRIVATE (set);
+
+  if (G_UNLIKELY (!priv->color_map))
+    priv->color_map = g_hash_table_new_full (g_str_hash,
+                                             g_str_equal,
+                                             (GDestroyNotify) g_free,
+                                             (GDestroyNotify) gtk_symbolic_color_unref);
+
+  g_hash_table_replace (priv->color_map,
+                        g_strdup (name),
+                        gtk_symbolic_color_ref (color));
+}
+
+GtkSymbolicColor *
+gtk_style_set_lookup_color (GtkStyleSet *set,
+			    const gchar *name)
+{
+  GtkStyleSetPrivate *priv;
+
+  g_return_val_if_fail (GTK_IS_STYLE_SET (set), NULL);
+  g_return_val_if_fail (name != NULL, NULL);
+
+  priv = GTK_STYLE_SET_GET_PRIVATE (set);
+
+  if (!priv->color_map)
+    return NULL;
+
+  return g_hash_table_lookup (priv->color_map, name);
+}
+
 static void
 set_property_internal (GtkStyleSet  *set,
                        const gchar  *property,
@@ -570,6 +615,28 @@ gtk_style_set_merge (GtkStyleSet       *set,
   priv = GTK_STYLE_SET_GET_PRIVATE (set);
   priv_to_merge = GTK_STYLE_SET_GET_PRIVATE (set_to_merge);
 
+  /* Merge symbolic color map */
+  if (priv_to_merge->color_map)
+    {
+      g_hash_table_iter_init (&iter, priv_to_merge->color_map);
+
+      while (g_hash_table_iter_next (&iter, &key, &value))
+        {
+          const gchar *name;
+          GtkSymbolicColor *color;
+
+          name = key;
+          color = value;
+
+          if (!replace &&
+              g_hash_table_lookup (priv->color_map, name))
+            continue;
+
+          gtk_style_set_map_color (set, name, color);
+        }
+    }
+
+  /* Merge symbolic style properties */
   g_hash_table_iter_init (&iter, priv_to_merge->properties);
 
   while (g_hash_table_iter_next (&iter, &key, &value))
diff --git a/gtk/gtkstyleset.h b/gtk/gtkstyleset.h
index d14deb8..88a11ae 100644
--- a/gtk/gtkstyleset.h
+++ b/gtk/gtkstyleset.h
@@ -23,9 +23,7 @@
 #include <glib-object.h>
 #include <gdk/gdk.h>
 #include "gtkenums.h"
-
-/* GtkBorder is defined there */
-#include "gtkstyle.h"
+#include "gtksymboliccolor.h"
 
 G_BEGIN_DECLS
 
@@ -59,6 +57,12 @@ gboolean gtk_style_set_lookup_property   (const gchar  *property_name,
 
 GtkStyleSet * gtk_style_set_new (void);
 
+void               gtk_style_set_map_color    (GtkStyleSet      *set,
+                                               const gchar      *name,
+                                               GtkSymbolicColor *color);
+GtkSymbolicColor * gtk_style_set_lookup_color (GtkStyleSet *set,
+                                               const gchar *name);
+
 void     gtk_style_set_set_default  (GtkStyleSet  *set,
                                      const gchar  *property,
                                      const GValue *value);