[gtk+/gtk-style-context: 271/490] Use GdkRGBA all around in GtkStyleContext.



commit bdb64a21c6d6c51f26e3f348a86e05fe6c66d253
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Oct 22 12:41:19 2010 +0200

    Use GdkRGBA all around in GtkStyleContext.

 gtk/gtkcssprovider.c   |   27 ++++--
 gtk/gtksettings.c      |    4 +-
 gtk/gtkstyle.c         |   37 +++++--
 gtk/gtkstylecontext.c  |    2 +-
 gtk/gtkstylecontext.h  |    2 +-
 gtk/gtkstyleset.c      |   26 +++---
 gtk/gtkstyleset.h      |    2 +-
 gtk/gtksymboliccolor.c |   39 ++++----
 gtk/gtksymboliccolor.h |    2 +-
 gtk/gtkthemingengine.c |  247 ++++++++++++++++++++++++------------------------
 10 files changed, 205 insertions(+), 183 deletions(-)
---
diff --git a/gtk/gtkcssprovider.c b/gtk/gtkcssprovider.c
index 045bd64..ccf0604 100644
--- a/gtk/gtkcssprovider.c
+++ b/gtk/gtkcssprovider.c
@@ -279,7 +279,7 @@
  *       <row>
  *         <entry>background-color</entry>
  *         <entry morerows="3"><programlisting>color</programlisting></entry>
- *         <entry morerows="3">#GdkColor</entry>
+ *         <entry morerows="3">#GdkRGBA</entry>
  *         <entry morerows="3">
  *           <programlisting>
  * background-color: &num;fff;
@@ -1532,21 +1532,30 @@ symbolic_color_parse_str (const gchar  *string,
 
   str = (gchar *) string;
 
-  if (str[0] == '#')
+  if (str[0] == '#' || str[0] == 'r')
     {
-      GdkColor color;
+      GdkRGBA color;
       gchar *color_str;
       const gchar *end;
 
       end = str + 1;
 
-      while (g_ascii_isxdigit (*end))
-        end++;
+      if (str[0] == '#')
+        while (g_ascii_isxdigit (*end))
+          end++;
+      else
+        {
+          while (*end != ')' && *end != '\0')
+            end++;
+
+          if (*end == ')')
+            end++;
+        }
 
       color_str = g_strndup (str, end - str);
       *end_ptr = (gchar *) end;
 
-      if (!gdk_color_parse (color_str, &color))
+      if (!gdk_rgba_parse (color_str, &color))
         {
           g_free (color_str);
           return NULL;
@@ -2205,11 +2214,11 @@ css_provider_parse_value (GtkCssProvider *css_provider,
 
   type = G_VALUE_TYPE (value);
 
-  if (type == GDK_TYPE_COLOR)
+  if (type == GDK_TYPE_RGBA)
     {
-      GdkColor color;
+      GdkRGBA color;
 
-      if (gdk_color_parse (value_str, &color) == TRUE)
+      if (gdk_rgba_parse (value_str, &color) == TRUE)
         g_value_set_boxed (value, &color);
       else
         {
diff --git a/gtk/gtksettings.c b/gtk/gtksettings.c
index 2788909..82d20cc 100644
--- a/gtk/gtksettings.c
+++ b/gtk/gtksettings.c
@@ -1278,7 +1278,7 @@ gtk_settings_get_style (GtkStyleProvider *provider,
     {
       GtkSymbolicColor *color;
       gchar *name, *pos;
-      GdkColor col;
+      GdkRGBA col;
 
       if (!*colors[i])
         continue;
@@ -1297,7 +1297,7 @@ gtk_settings_get_style (GtkStyleProvider *provider,
       while (*pos == ' ')
         pos++;
 
-      if (!*pos || !gdk_color_parse (pos, &col))
+      if (!*pos || !gdk_rgba_parse (pos, &col))
         continue;
 
       color = gtk_symbolic_color_new_literal (&col);
diff --git a/gtk/gtkstyle.c b/gtk/gtkstyle.c
index 38390c0..8ba9e97 100644
--- a/gtk/gtkstyle.c
+++ b/gtk/gtkstyle.c
@@ -642,7 +642,8 @@ set_color (GtkStyle        *style,
            GtkStateType     state,
            GtkRcFlags       prop)
 {
-  GdkColor *color = NULL;
+  GdkRGBA *color = NULL;
+  GdkColor *dest = { 0 }; /* Shut up gcc */
 
   switch (prop)
     {
@@ -650,34 +651,36 @@ set_color (GtkStyle        *style,
       gtk_style_context_get (context, state,
                              "background-color", &color,
                              NULL);
-      if (color)
-        style->bg[state] = *color;
+      dest = &style->bg[state];
       break;
     case GTK_RC_FG:
       gtk_style_context_get (context, state,
                              "foreground-color", &color,
                              NULL);
-      if (color)
-        style->fg[state] = *color;
+      dest = &style->fg[state];
       break;
     case GTK_RC_TEXT:
       gtk_style_context_get (context, state,
                              "text-color", &color,
                              NULL);
-      if (color)
-        style->text[state] = *color;
+      dest = &style->text[state];
       break;
     case GTK_RC_BASE:
       gtk_style_context_get (context, state,
                              "base-color", &color,
                              NULL);
-      if (color)
-	style->base[state] = *color;
+      dest = &style->base[state];
       break;
     }
 
   if (color)
-    gdk_color_free (color);
+    {
+      dest->pixel = 0;
+      dest->red = CLAMP ((guint) (color->red * 65535), 0, 65535);
+      dest->green = CLAMP ((guint) (color->green * 65535), 0, 65535);
+      dest->blue = CLAMP ((guint) (color->blue * 65535), 0, 65535);
+      gdk_rgba_free (color);
+    }
 }
 
 static void
@@ -973,6 +976,8 @@ gtk_style_lookup_color (GtkStyle   *style,
                         GdkColor   *color)
 {
   GtkStylePrivate *priv;
+  gboolean result;
+  GdkRGBA rgba;
 
   g_return_val_if_fail (GTK_IS_STYLE (style), FALSE);
   g_return_val_if_fail (color_name != NULL, FALSE);
@@ -983,7 +988,17 @@ gtk_style_lookup_color (GtkStyle   *style,
   if (!priv->context)
     return FALSE;
 
-  return gtk_style_context_lookup_color (priv->context, color_name, color);
+  result = gtk_style_context_lookup_color (priv->context, color_name, &rgba);
+
+  if (color)
+    {
+      color->red = (guint16) (rgba.red * 65535);
+      color->green = (guint16) (rgba.green * 65535);
+      color->blue = (guint16) (rgba.blue * 65535);
+      color->pixel = 0;
+    }
+
+  return result;
 }
 
 /**
diff --git a/gtk/gtkstylecontext.c b/gtk/gtkstylecontext.c
index 284f852..602a83d 100644
--- a/gtk/gtkstylecontext.c
+++ b/gtk/gtkstylecontext.c
@@ -2376,7 +2376,7 @@ gtk_style_context_get_junction_sides (GtkStyleContext *context)
 gboolean
 gtk_style_context_lookup_color (GtkStyleContext *context,
                                 const gchar     *color_name,
-                                GdkColor        *color)
+                                GdkRGBA         *color)
 {
   GtkStyleContextPrivate *priv;
   GtkSymbolicColor *sym_color;
diff --git a/gtk/gtkstylecontext.h b/gtk/gtkstylecontext.h
index 574bedd..212de85 100644
--- a/gtk/gtkstylecontext.h
+++ b/gtk/gtkstylecontext.h
@@ -137,7 +137,7 @@ GtkJunctionSides gtk_style_context_get_junction_sides (GtkStyleContext  *context
 
 gboolean gtk_style_context_lookup_color (GtkStyleContext *context,
                                          const gchar     *color_name,
-                                         GdkColor        *color);
+                                         GdkRGBA         *color);
 
 void  gtk_style_context_notify_state_change (GtkStyleContext *context,
                                              GdkWindow       *window,
diff --git a/gtk/gtkstyleset.c b/gtk/gtkstyleset.c
index a53a75c..94a4136 100644
--- a/gtk/gtkstyleset.c
+++ b/gtk/gtkstyleset.c
@@ -81,10 +81,10 @@ gtk_style_set_class_init (GtkStyleSetClass *klass)
   object_class->finalize = gtk_style_set_finalize;
 
   /* Initialize default property set */
-  gtk_style_set_register_property ("foreground-color", GDK_TYPE_COLOR, NULL, NULL);
-  gtk_style_set_register_property ("background-color", GDK_TYPE_COLOR, NULL, NULL);
-  gtk_style_set_register_property ("text-color", GDK_TYPE_COLOR, NULL, NULL);
-  gtk_style_set_register_property ("base-color", GDK_TYPE_COLOR, NULL, NULL);
+  gtk_style_set_register_property ("foreground-color", GDK_TYPE_RGBA, NULL, NULL);
+  gtk_style_set_register_property ("background-color", GDK_TYPE_RGBA, NULL, NULL);
+  gtk_style_set_register_property ("text-color", GDK_TYPE_RGBA, NULL, NULL);
+  gtk_style_set_register_property ("base-color", GDK_TYPE_RGBA, NULL, NULL);
 
   gtk_style_set_register_property ("font", PANGO_TYPE_FONT_DESCRIPTION, NULL, NULL);
 
@@ -94,7 +94,7 @@ gtk_style_set_class_init (GtkStyleSetClass *klass)
   gtk_style_set_register_property ("border-width", G_TYPE_INT, NULL, NULL);
   gtk_style_set_register_property ("border-radius", G_TYPE_INT, NULL, NULL);
   gtk_style_set_register_property ("border-style", GTK_TYPE_BORDER_STYLE, NULL, NULL);
-  gtk_style_set_register_property ("border-color", GDK_TYPE_COLOR, NULL, NULL);
+  gtk_style_set_register_property ("border-color", GDK_TYPE_RGBA, NULL, NULL);
 
   gtk_style_set_register_property ("background-image", CAIRO_GOBJECT_TYPE_PATTERN, NULL, NULL);
   gtk_style_set_register_property ("border-image", GTK_TYPE_9SLICE, NULL, NULL);
@@ -572,10 +572,10 @@ gtk_style_set_set_property (GtkStyleSet   *set,
       return;
     }
 
-  if (node->property_type == GDK_TYPE_COLOR)
+  if (node->property_type == GDK_TYPE_RGBA)
     {
       /* Allow GtkSymbolicColor as well */
-      g_return_if_fail (value_type == GDK_TYPE_COLOR || value_type == GTK_TYPE_SYMBOLIC_COLOR);
+      g_return_if_fail (value_type == GDK_TYPE_RGBA || value_type == GTK_TYPE_SYMBOLIC_COLOR);
     }
   else if (node->property_type == CAIRO_GOBJECT_TYPE_PATTERN)
     {
@@ -710,15 +710,15 @@ static gboolean
 resolve_color (GtkStyleSet *set,
 	       GValue      *value)
 {
-  GdkColor color;
+  GdkRGBA color;
 
-  /* Resolve symbolic color to GdkColor */
+  /* Resolve symbolic color to GdkRGBA */
   if (!gtk_symbolic_color_resolve (g_value_get_boxed (value), set, &color))
     return FALSE;
 
-  /* Store it back, this is where GdkColor caching happens */
+  /* Store it back, this is where GdkRGBA caching happens */
   g_value_unset (value);
-  g_value_init (value, GDK_TYPE_COLOR);
+  g_value_init (value, GDK_TYPE_RGBA);
   g_value_set_boxed (value, &color);
 
   return TRUE;
@@ -796,7 +796,7 @@ gtk_style_set_get_property (GtkStyleSet   *set,
 
   if (G_VALUE_TYPE (val) == GTK_TYPE_SYMBOLIC_COLOR)
     {
-      g_return_val_if_fail (node->property_type == GDK_TYPE_COLOR, FALSE);
+      g_return_val_if_fail (node->property_type == GDK_TYPE_RGBA, FALSE);
 
       if (!resolve_color (set, val))
         return FALSE;
@@ -863,7 +863,7 @@ gtk_style_set_get_valist (GtkStyleSet   *set,
 
       if (G_VALUE_TYPE (val) == GTK_TYPE_SYMBOLIC_COLOR)
         {
-          g_return_if_fail (node->property_type == GDK_TYPE_COLOR);
+          g_return_if_fail (node->property_type == GDK_TYPE_RGBA);
 
           if (!resolve_color (set, val))
             val = &node->default_value;
diff --git a/gtk/gtkstyleset.h b/gtk/gtkstyleset.h
index f19ce16..60544ad 100644
--- a/gtk/gtkstyleset.h
+++ b/gtk/gtkstyleset.h
@@ -105,7 +105,7 @@ void     gtk_style_set_merge          (GtkStyleSet       *set,
 
 gboolean gtk_symbolic_color_resolve (GtkSymbolicColor    *color,
 				     GtkStyleSet         *style_set,
-                                     GdkColor            *resolved_color);
+                                     GdkRGBA             *resolved_color);
 gboolean gtk_gradient_resolve (GtkGradient      *gradient,
                                GtkStyleSet      *style_set,
                                cairo_pattern_t **resolved_gradient);
diff --git a/gtk/gtksymboliccolor.c b/gtk/gtksymboliccolor.c
index e803c2e..25af2c3 100644
--- a/gtk/gtksymboliccolor.c
+++ b/gtk/gtksymboliccolor.c
@@ -42,7 +42,7 @@ struct _GtkSymbolicColor
 
   union
   {
-    GdkColor color;
+    GdkRGBA color;
     gchar *name;
 
     struct
@@ -84,7 +84,7 @@ struct _GtkGradient
 
 /**
  * gtk_symbolic_color_new_literal:
- * @color: a #GdkColor
+ * @color: a #GdkRGBA
  *
  * Creates a symbolic color pointing to a literal color.
  *
@@ -93,7 +93,7 @@ struct _GtkGradient
  * Since: 3.0
  **/
 GtkSymbolicColor *
-gtk_symbolic_color_new_literal (GdkColor *color)
+gtk_symbolic_color_new_literal (GdkRGBA *color)
 {
   GtkSymbolicColor *symbolic_color;
 
@@ -273,9 +273,9 @@ gtk_symbolic_color_unref (GtkSymbolicColor *color)
  * Since: 3.0
  **/
 gboolean
-gtk_symbolic_color_resolve (GtkSymbolicColor    *color,
-                            GtkStyleSet         *style_set,
-                            GdkColor            *resolved_color)
+gtk_symbolic_color_resolve (GtkSymbolicColor *color,
+                            GtkStyleSet      *style_set,
+                            GdkRGBA          *resolved_color)
 {
   g_return_val_if_fail (color != NULL, FALSE);
   g_return_val_if_fail (GTK_IS_STYLE_SET (style_set), FALSE);
@@ -301,14 +301,15 @@ gtk_symbolic_color_resolve (GtkSymbolicColor    *color,
       break;
     case COLOR_TYPE_SHADE:
       {
-        GdkColor shade;
+        GdkRGBA shade;
 
         if (!gtk_symbolic_color_resolve (color->shade.color, style_set, &shade))
           return FALSE;
 
-        resolved_color->red = CLAMP (shade.red * color->shade.factor, 0, 65535);
-        resolved_color->green = CLAMP (shade.green * color->shade.factor, 0, 65535);
-        resolved_color->blue = CLAMP (shade.blue * color->shade.factor, 0, 65535);
+        resolved_color->red = CLAMP (shade.red * color->shade.factor, 0, 1);
+        resolved_color->green = CLAMP (shade.green * color->shade.factor, 0, 1);
+        resolved_color->blue = CLAMP (shade.blue * color->shade.factor, 0, 1);
+        resolved_color->alpha = CLAMP (shade.alpha * color->shade.factor, 0, 1);
 
         return TRUE;
       }
@@ -316,7 +317,7 @@ gtk_symbolic_color_resolve (GtkSymbolicColor    *color,
       break;
     case COLOR_TYPE_MIX:
       {
-        GdkColor color1, color2;
+        GdkRGBA color1, color2;
 
         if (!gtk_symbolic_color_resolve (color->mix.color1, style_set, &color1))
           return FALSE;
@@ -324,9 +325,10 @@ gtk_symbolic_color_resolve (GtkSymbolicColor    *color,
         if (!gtk_symbolic_color_resolve (color->mix.color2, style_set, &color2))
           return FALSE;
 
-        resolved_color->red = CLAMP (color1.red + ((color2.red - color1.red) * color->mix.factor), 0, 65535);
-        resolved_color->green = CLAMP (color1.green + ((color2.green - color1.green) * color->mix.factor), 0, 65535);
-        resolved_color->blue = CLAMP (color1.blue + ((color2.blue - color1.blue) * color->mix.factor), 0, 65535);
+        resolved_color->red = CLAMP (color1.red + ((color2.red - color1.red) * color->mix.factor), 0, 1);
+        resolved_color->green = CLAMP (color1.green + ((color2.green - color1.green) * color->mix.factor), 0, 1);
+        resolved_color->blue = CLAMP (color1.blue + ((color2.blue - color1.blue) * color->mix.factor), 0, 1);
+        resolved_color->alpha = CLAMP (color1.alpha + ((color2.alpha - color1.alpha) * color->mix.factor), 0, 1);
 
         return TRUE;
       }
@@ -537,7 +539,7 @@ gtk_gradient_resolve (GtkGradient      *gradient,
   for (i = 0; i < gradient->stops->len; i++)
     {
       ColorStop *stop;
-      GdkColor color;
+      GdkRGBA color;
 
       stop = &g_array_index (gradient->stops, ColorStop, i);
 
@@ -547,10 +549,9 @@ gtk_gradient_resolve (GtkGradient      *gradient,
           return FALSE;
         }
 
-      cairo_pattern_add_color_stop_rgb (pattern, stop->offset,
-                                        color.red / 65535.,
-                                        color.green / 65535.,
-                                        color.blue / 65535.);
+      cairo_pattern_add_color_stop_rgba (pattern, stop->offset,
+                                         color.red, color.green,
+                                         color.blue, color.alpha);
     }
 
   *resolved_gradient = pattern;
diff --git a/gtk/gtksymboliccolor.h b/gtk/gtksymboliccolor.h
index e326992..ce1d3c6 100644
--- a/gtk/gtksymboliccolor.h
+++ b/gtk/gtksymboliccolor.h
@@ -34,7 +34,7 @@ typedef struct _GtkGradient GtkGradient;
 GType gtk_symbolic_color_get_type (void) G_GNUC_CONST;
 GType gtk_gradient_get_type (void) G_GNUC_CONST;
 
-GtkSymbolicColor * gtk_symbolic_color_new_literal (GdkColor         *color);
+GtkSymbolicColor * gtk_symbolic_color_new_literal (GdkRGBA          *color);
 GtkSymbolicColor * gtk_symbolic_color_new_name    (const gchar      *name);
 GtkSymbolicColor * gtk_symbolic_color_new_shade   (GtkSymbolicColor *color,
                                                    gdouble           factor);
diff --git a/gtk/gtkthemingengine.c b/gtk/gtkthemingengine.c
index b7e101b..61433ad 100644
--- a/gtk/gtkthemingengine.c
+++ b/gtk/gtkthemingengine.c
@@ -758,7 +758,7 @@ gtk_theming_engine_render_check (GtkThemingEngine *engine,
                                  gdouble           width,
                                  gdouble           height)
 {
-  GdkColor *fg_color, *base_color, *text_color;
+  GdkRGBA *fg_color, *base_color, *text_color;
   const GtkWidgetPath *path;
   GtkStateFlags flags;
   gint exterior_size, interior_size, thickness, pad;
@@ -797,21 +797,21 @@ gtk_theming_engine_render_check (GtkThemingEngine *engine,
       cairo_set_line_width (cr, 1.0);
 
       cairo_rectangle (cr, x + 0.5, y + 0.5, exterior_size - 1, exterior_size - 1);
-      gdk_cairo_set_source_color (cr, base_color);
+      gdk_cairo_set_source_rgba (cr, base_color);
       cairo_fill_preserve (cr);
 
       if (gtk_theming_engine_has_class (engine, "cell"))
-	gdk_cairo_set_source_color (cr, text_color);
+	gdk_cairo_set_source_rgba (cr, text_color);
       else
-	gdk_cairo_set_source_color (cr, fg_color);
+	gdk_cairo_set_source_rgba (cr, fg_color);
 
       cairo_stroke (cr);
     }
 
   if (gtk_theming_engine_has_class (engine, "menu"))
-    gdk_cairo_set_source_color (cr, fg_color);
+    gdk_cairo_set_source_rgba (cr, fg_color);
   else
-    gdk_cairo_set_source_color (cr, text_color);
+    gdk_cairo_set_source_rgba (cr, text_color);
 
   if (flags & GTK_STATE_FLAG_INCONSISTENT)
     {
@@ -869,9 +869,9 @@ gtk_theming_engine_render_check (GtkThemingEngine *engine,
 
   cairo_restore (cr);
 
-  gdk_color_free (fg_color);
-  gdk_color_free (base_color);
-  gdk_color_free (text_color);
+  gdk_rgba_free (fg_color);
+  gdk_rgba_free (base_color);
+  gdk_rgba_free (text_color);
 }
 
 static void
@@ -883,7 +883,7 @@ gtk_theming_engine_render_option (GtkThemingEngine *engine,
                                   gdouble           height)
 {
   GtkStateFlags flags;
-  GdkColor *base_color, *fg_color, *text_color;
+  GdkRGBA *base_color, *fg_color, *text_color;
   const GtkWidgetPath *path;
   gint exterior_size, interior_size, pad, thickness;
   gdouble radius;
@@ -910,7 +910,7 @@ gtk_theming_engine_render_option (GtkThemingEngine *engine,
 
   if (!gtk_theming_engine_has_class (engine, "menu"))
     {
-      gdk_cairo_set_source_color (cr, base_color);
+      gdk_cairo_set_source_rgba (cr, base_color);
 
       cairo_arc (cr,
 		 x + exterior_size / 2.,
@@ -921,18 +921,18 @@ gtk_theming_engine_render_option (GtkThemingEngine *engine,
       cairo_fill_preserve (cr);
 
       if (gtk_theming_engine_has_class (engine, "cell"))
-	gdk_cairo_set_source_color (cr, text_color);
+	gdk_cairo_set_source_rgba (cr, text_color);
       else
-	gdk_cairo_set_source_color (cr, fg_color);
+	gdk_cairo_set_source_rgba (cr, fg_color);
 
       cairo_set_line_width (cr, 1.);
       cairo_stroke (cr);
     }
 
   if (gtk_theming_engine_has_class (engine, "menu"))
-    gdk_cairo_set_source_color (cr, fg_color);
+    gdk_cairo_set_source_rgba (cr, fg_color);
   else
-    gdk_cairo_set_source_color (cr, text_color);
+    gdk_cairo_set_source_rgba (cr, text_color);
 
   /* FIXME: thickness */
   thickness = 1;
@@ -980,9 +980,9 @@ gtk_theming_engine_render_option (GtkThemingEngine *engine,
 
   cairo_restore (cr);
 
-  gdk_color_free (fg_color);
-  gdk_color_free (base_color);
-  gdk_color_free (text_color);
+  gdk_rgba_free (fg_color);
+  gdk_rgba_free (base_color);
+  gdk_rgba_free (text_color);
 }
 
 static void
@@ -1014,7 +1014,7 @@ gtk_theming_engine_render_arrow (GtkThemingEngine *engine,
                                  gdouble           size)
 {
   GtkStateFlags flags;
-  GdkColor *fg_color;
+  GdkRGBA *fg_color;
 
   cairo_save (cr);
 
@@ -1032,12 +1032,12 @@ gtk_theming_engine_render_arrow (GtkThemingEngine *engine,
     }
 
   add_path_arrow (cr, angle, x, y, size);
-  gdk_cairo_set_source_color (cr, fg_color);
+  gdk_cairo_set_source_rgba (cr, fg_color);
   cairo_fill (cr);
 
   cairo_restore (cr);
 
-  gdk_color_free (fg_color);
+  gdk_rgba_free (fg_color);
 }
 
 static void
@@ -1130,13 +1130,14 @@ add_path_gap_side (cairo_t           *cr,
 }
 
 static void
-color_shade (const GdkColor *color,
-             gdouble         factor,
-             GdkColor       *color_return)
+color_shade (const GdkRGBA *color,
+             gdouble        factor,
+             GdkRGBA       *color_return)
 {
-  color_return->red = CLAMP (color->red * factor, 0, 65535);
-  color_return->green = CLAMP (color->green * factor, 0, 65535);
-  color_return->blue = CLAMP (color->blue * factor, 0, 65535);
+  color_return->red = CLAMP (color->red * factor, 0, 1);
+  color_return->green = CLAMP (color->green * factor, 0, 1);
+  color_return->blue = CLAMP (color->blue * factor, 0, 1);
+  color_return->alpha = CLAMP (color->alpha * factor, 0, 1);
 }
 
 static void
@@ -1242,7 +1243,7 @@ gtk_theming_engine_render_background (GtkThemingEngine *engine,
                                       gdouble           width,
                                       gdouble           height)
 {
-  GdkColor *bg_color, *base_color;
+  GdkRGBA *bg_color, *base_color;
   cairo_pattern_t *pattern;
   GtkStateFlags flags;
   gboolean running;
@@ -1284,7 +1285,7 @@ gtk_theming_engine_render_background (GtkThemingEngine *engine,
     {
       cairo_pattern_t *other_pattern;
       GtkStateFlags other_flags;
-      GdkColor *other_bg, *other_base;
+      GdkRGBA *other_bg, *other_base;
       cairo_pattern_t *new_pattern = NULL;
 
       if (flags & GTK_STATE_FLAG_PRELIGHT)
@@ -1384,10 +1385,8 @@ gtk_theming_engine_render_background (GtkThemingEngine *engine,
       else if (pattern || other_pattern)
         {
           cairo_pattern_t *p;
-          GdkColor *c;
+          GdkRGBA *c;
           gdouble x0, y0, x1, y1, r0, r1;
-          gdouble red0, green0, blue0;
-          gdouble red1, green1, blue1;
           gint n, i;
 
           /* Blend a pattern with a color */
@@ -1416,28 +1415,25 @@ gtk_theming_engine_render_background (GtkThemingEngine *engine,
 
           cairo_pattern_get_color_stop_count (p, &n);
 
-          red0 = c->red / 65535.;
-          green0 = c->green / 65535.;
-          blue0 = c->blue / 65535.;
-
           for (i = 0; i < n; i++)
             {
-              gdouble offset, alpha;
+              gdouble red1, green1, blue1, alpha1;
+              gdouble offset;
 
               cairo_pattern_get_color_stop_rgba (p, i,
                                                  &offset,
                                                  &red1, &green1, &blue1,
-                                                 &alpha);
+                                                 &alpha1);
               cairo_pattern_add_color_stop_rgba (new_pattern, offset,
-                                                 red0 + ((red1 - red0) * progress),
-                                                 green0 + ((green1 - green0) * progress),
-                                                 blue0 + ((blue1 - blue0) * progress),
-                                                 alpha + ((1 - alpha) * progress));
+                                                 c->red + ((red1 - c->red) * progress),
+                                                 c->green + ((green1 - c->green) * progress),
+                                                 c->blue + ((blue1 - c->blue) * progress),
+                                                 c->alpha + ((alpha1 - c->alpha) * progress));
             }
         }
       else
         {
-          const GdkColor *color, *other_color;
+          const GdkRGBA *color, *other_color;
 
           /* Merge just colors */
           if (gtk_theming_engine_has_class (engine, "entry"))
@@ -1451,9 +1447,10 @@ gtk_theming_engine_render_background (GtkThemingEngine *engine,
               other_color = other_bg;
             }
 
-          new_pattern = cairo_pattern_create_rgb ((gdouble) (color->red + ((other_color->red - color->red) * progress)) / 65535.,
-                                                  (gdouble) (color->green + ((other_color->green - color->green) * progress)) / 65535.,
-                                                  (gdouble) (color->blue + ((other_color->blue - color->blue) * progress)) / 65535.);
+          new_pattern = cairo_pattern_create_rgba (CLAMP (color->red + ((other_color->red - color->red) * progress), 0, 1),
+                                                   CLAMP (color->green + ((other_color->green - color->green) * progress), 0, 1),
+                                                   CLAMP (color->blue + ((other_color->blue - color->blue) * progress), 0, 1),
+                                                   CLAMP (color->alpha + ((other_color->alpha - color->alpha) * progress), 0, 1));
         }
 
       if (new_pattern)
@@ -1467,10 +1464,10 @@ gtk_theming_engine_render_background (GtkThemingEngine *engine,
         cairo_pattern_destroy (other_pattern);
 
       if (other_bg)
-        gdk_color_free (other_bg);
+        gdk_rgba_free (other_bg);
 
       if (other_base)
-        gdk_color_free (other_base);
+        gdk_rgba_free (other_base);
     }
 
   cairo_rectangle (cr, 0, 0, 1, 1);
@@ -1483,9 +1480,9 @@ gtk_theming_engine_render_background (GtkThemingEngine *engine,
   else
     {
       if (gtk_theming_engine_has_class (engine, "entry"))
-        gdk_cairo_set_source_color (cr, base_color);
+        gdk_cairo_set_source_rgba (cr, base_color);
       else
-        gdk_cairo_set_source_color (cr, bg_color);
+        gdk_cairo_set_source_rgba (cr, bg_color);
     }
 
   if (gtk_theming_engine_has_class (engine, "tooltip"))
@@ -1511,8 +1508,8 @@ gtk_theming_engine_render_background (GtkThemingEngine *engine,
 
   cairo_restore (cr);
 
-  gdk_color_free (base_color);
-  gdk_color_free (bg_color);
+  gdk_rgba_free (base_color);
+  gdk_rgba_free (bg_color);
 }
 
 static void
@@ -1524,8 +1521,8 @@ gtk_theming_engine_render_frame (GtkThemingEngine *engine,
                                  gdouble           height)
 {
   GtkStateFlags flags;
-  GdkColor lighter, darker;
-  GdkColor *border_color;
+  GdkRGBA lighter, darker;
+  GdkRGBA *border_color;
   Gtk9Slice *slice;
   GtkBorderStyle border_style;
   gint border_width, radius;
@@ -1571,7 +1568,7 @@ gtk_theming_engine_render_frame (GtkThemingEngine *engine,
 
           _cairo_round_rectangle_sides (cr, (gdouble) radius, x, y, width, height,
                                         SIDE_ALL, junction);
-          gdk_cairo_set_source_color (cr, border_color);
+          gdk_cairo_set_source_rgba (cr, border_color);
           cairo_stroke (cr);
 
           break;
@@ -1592,18 +1589,18 @@ gtk_theming_engine_render_frame (GtkThemingEngine *engine,
             }
 
           if (border_style == GTK_BORDER_STYLE_INSET)
-            gdk_cairo_set_source_color (cr, border_color);
+            gdk_cairo_set_source_rgba (cr, border_color);
           else
-            gdk_cairo_set_source_color (cr, &darker);
+            gdk_cairo_set_source_rgba (cr, &darker);
 
           _cairo_round_rectangle_sides (cr, (gdouble) radius, x, y, width, height,
                                         SIDE_BOTTOM | SIDE_RIGHT, junction);
           cairo_stroke (cr);
 
           if (border_style == GTK_BORDER_STYLE_INSET)
-            gdk_cairo_set_source_color (cr, &darker);
+            gdk_cairo_set_source_rgba (cr, &darker);
           else
-            gdk_cairo_set_source_color (cr, border_color);
+            gdk_cairo_set_source_rgba (cr, border_color);
 
           _cairo_round_rectangle_sides (cr, (gdouble) radius, x, y, width, height,
                                         SIDE_TOP | SIDE_LEFT, junction);
@@ -1616,7 +1613,7 @@ gtk_theming_engine_render_frame (GtkThemingEngine *engine,
     }
 
   if (border_color)
-    gdk_color_free (border_color);
+    gdk_rgba_free (border_color);
 }
 
 static void
@@ -1628,7 +1625,7 @@ gtk_theming_engine_render_expander (GtkThemingEngine *engine,
                                     gdouble           height)
 {
   GtkStateFlags flags;
-  GdkColor *bg_color, *fg_color, *base_color;
+  GdkRGBA *bg_color, *fg_color, *base_color;
   double vertical_overshoot;
   int diameter;
   double radius;
@@ -1712,20 +1709,20 @@ gtk_theming_engine_render_expander (GtkThemingEngine *engine,
   cairo_set_line_width (cr, line_width);
 
   if (flags & GTK_STATE_FLAG_PRELIGHT)
-    gdk_cairo_set_source_color (cr, fg_color);
+    gdk_cairo_set_source_rgba (cr, fg_color);
   else
-    gdk_cairo_set_source_color (cr, base_color);
+    gdk_cairo_set_source_rgba (cr, base_color);
 
   cairo_fill_preserve (cr);
 
-  gdk_cairo_set_source_color (cr, fg_color);
+  gdk_cairo_set_source_rgba (cr, fg_color);
   cairo_stroke (cr);
 
   cairo_restore (cr);
 
-  gdk_color_free (base_color);
-  gdk_color_free (fg_color);
-  gdk_color_free (bg_color);
+  gdk_rgba_free (base_color);
+  gdk_rgba_free (fg_color);
+  gdk_rgba_free (bg_color);
 }
 
 static void
@@ -1737,7 +1734,7 @@ gtk_theming_engine_render_focus (GtkThemingEngine *engine,
                                  gdouble           height)
 {
   GtkStateFlags flags;
-  GdkColor *color;
+  GdkRGBA *color;
   gint line_width;
   gint8 *dash_list;
 
@@ -1789,12 +1786,12 @@ gtk_theming_engine_render_focus (GtkThemingEngine *engine,
                    width - line_width,
                    height - line_width);
 
-  gdk_cairo_set_source_color (cr, color);
+  gdk_cairo_set_source_rgba (cr, color);
   cairo_stroke (cr);
 
   cairo_restore (cr);
 
-  gdk_color_free (color);
+  gdk_rgba_free (color);
   g_free (dash_list);
 }
 
@@ -1806,7 +1803,7 @@ gtk_theming_engine_render_line (GtkThemingEngine *engine,
                                 gdouble           x1,
                                 gdouble           y1)
 {
-  GdkColor *bg_color, darker, lighter;
+  GdkRGBA *bg_color, darker, lighter;
   GtkStateFlags flags;
   gint i, thickness, thickness_dark, thickness_light, len;
   cairo_matrix_t matrix;
@@ -1847,11 +1844,11 @@ gtk_theming_engine_render_line (GtkThemingEngine *engine,
 
   for (i = 0; i < thickness_dark; i++)
     {
-      gdk_cairo_set_source_color (cr, &lighter);
+      gdk_cairo_set_source_rgba (cr, &lighter);
       add_path_line (cr, len - i - 1.5, y0, len - 0.5, y0);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, &darker);
+      gdk_cairo_set_source_rgba (cr, &darker);
       add_path_line (cr, 0.5, y0, len - i - 1.5, y0);
       cairo_stroke (cr);
 
@@ -1860,11 +1857,11 @@ gtk_theming_engine_render_line (GtkThemingEngine *engine,
 
   for (i = 0; i < thickness_light; i++)
     {
-      gdk_cairo_set_source_color (cr, &darker);
+      gdk_cairo_set_source_rgba (cr, &darker);
       add_path_line (cr, 0.5, y0, thickness_light - i + 0.5, y0);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, &lighter);
+      gdk_cairo_set_source_rgba (cr, &lighter);
       add_path_line (cr, thickness_light - i + 0.5, y0, len - 0.5, y0);
       cairo_stroke (cr);
 
@@ -1873,7 +1870,7 @@ gtk_theming_engine_render_line (GtkThemingEngine *engine,
 
   cairo_restore (cr);
 
-  gdk_color_free (bg_color);
+  gdk_rgba_free (bg_color);
 }
 
 static void
@@ -1884,7 +1881,7 @@ gtk_theming_engine_render_layout (GtkThemingEngine *engine,
                                   PangoLayout      *layout)
 {
   const PangoMatrix *matrix;
-  GdkColor *fg_color;
+  GdkRGBA *fg_color;
   GtkStateFlags flags;
   GdkScreen *screen;
 
@@ -1931,12 +1928,12 @@ gtk_theming_engine_render_layout (GtkThemingEngine *engine,
       cairo_restore (cr);
     }
 
-  gdk_cairo_set_source_color (cr, fg_color);
+  gdk_cairo_set_source_rgba (cr, fg_color);
   pango_cairo_show_layout (cr, layout);
 
   cairo_restore (cr);
 
-  gdk_color_free (fg_color);
+  gdk_rgba_free (fg_color);
 }
 
 static void
@@ -1988,8 +1985,8 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
                                      gdouble           xy1_gap)
 {
   GtkStateFlags flags;
-  GdkColor *bg_color;
-  GdkColor lighter, darker;
+  GdkRGBA *bg_color;
+  GdkRGBA lighter, darker;
   guint sides;
 
   cairo_save (cr);
@@ -2012,24 +2009,24 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
       else
         sides = SIDE_BOTTOM | SIDE_RIGHT;
 
-      gdk_cairo_set_source_color (cr, &lighter);
+      gdk_cairo_set_source_rgba (cr, &lighter);
       add_path_rectangle_sides (cr, x , y, width , height, sides);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, &darker);
+      gdk_cairo_set_source_rgba (cr, &darker);
       add_path_rectangle_sides (cr, x, y, width - 1, height - 1, sides);
       cairo_stroke (cr);
 
       if (gap_side == GTK_POS_RIGHT ||
 	  gap_side == GTK_POS_BOTTOM)
         {
-          gdk_cairo_set_source_color (cr, &darker);
+          gdk_cairo_set_source_rgba (cr, &darker);
           add_path_gap_side (cr, gap_side,
                              x + 1, y + 1, width - 4, height - 4,
                              xy0_gap, xy1_gap);
           cairo_stroke (cr);
 
-          gdk_cairo_set_source_color (cr, &lighter);
+          gdk_cairo_set_source_rgba (cr, &lighter);
           add_path_gap_side (cr, gap_side,
                              x, y, width, height,
                              xy0_gap, xy1_gap);
@@ -2043,24 +2040,24 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
       else
         sides = SIDE_TOP | SIDE_LEFT;
 
-      gdk_cairo_set_source_color (cr, &lighter);
+      gdk_cairo_set_source_rgba (cr, &lighter);
       add_path_rectangle_sides (cr, x + 1, y + 1, width - 2, height - 3, sides);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, &darker);
+      gdk_cairo_set_source_rgba (cr, &darker);
       add_path_rectangle_sides (cr, x, y, width - 1, height - 1, sides);
       cairo_stroke (cr);
 
       if (gap_side == GTK_POS_LEFT ||
           gap_side == GTK_POS_TOP)
         {
-          gdk_cairo_set_source_color (cr, &lighter);
+          gdk_cairo_set_source_rgba (cr, &lighter);
           add_path_gap_side (cr, gap_side,
                              x + 1, y + 1, width - 4, height - 4,
                              xy0_gap, xy1_gap);
           cairo_stroke (cr);
 
-          gdk_cairo_set_source_color (cr, &darker);
+          gdk_cairo_set_source_rgba (cr, &darker);
           add_path_gap_side (cr, gap_side,
                              x, y, width - 2, height - 2,
                              xy0_gap, xy1_gap);
@@ -2076,7 +2073,7 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
       else
         sides = SIDE_BOTTOM | SIDE_RIGHT;
 
-      gdk_cairo_set_source_color (cr, &darker);
+      gdk_cairo_set_source_rgba (cr, &darker);
       add_path_rectangle_sides (cr, x + 1, y, width - 2, height, sides);
       add_path_rectangle_sides (cr, x, y + 1, width, height - 2, sides);
       cairo_stroke (cr);
@@ -2088,7 +2085,7 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
       if (gap_side == GTK_POS_RIGHT ||
           gap_side == GTK_POS_BOTTOM)
         {
-          gdk_cairo_set_source_color (cr, &darker);
+          gdk_cairo_set_source_rgba (cr, &darker);
           add_path_gap_side (cr, gap_side,
                              x, y, width - 2, height - 2,
                              xy0_gap, xy1_gap);
@@ -2108,7 +2105,7 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
       else
         sides = SIDE_TOP | SIDE_LEFT;
 
-      gdk_cairo_set_source_color (cr, &lighter);
+      gdk_cairo_set_source_rgba (cr, &lighter);
       add_path_rectangle_sides (cr, x, y, width, height, sides);
       cairo_stroke (cr);
 
@@ -2124,7 +2121,7 @@ gtk_theming_engine_render_frame_gap (GtkThemingEngine *engine,
 
   cairo_restore (cr);
 
-  gdk_color_free (bg_color);
+  gdk_rgba_free (bg_color);
 }
 
 static void
@@ -2137,8 +2134,8 @@ gtk_theming_engine_render_extension (GtkThemingEngine *engine,
                                      GtkPositionType   gap_side)
 {
   GtkStateFlags flags;
-  GdkColor *bg_color;
-  GdkColor lighter, darker;
+  GdkRGBA *bg_color;
+  GdkRGBA lighter, darker;
 
   cairo_save (cr);
   flags = gtk_theming_engine_get_state (engine);
@@ -2154,19 +2151,19 @@ gtk_theming_engine_render_extension (GtkThemingEngine *engine,
   switch (gap_side)
     {
     case GTK_POS_TOP:
-      gdk_cairo_set_source_color (cr, bg_color);
+      gdk_cairo_set_source_rgba (cr, bg_color);
       cairo_rectangle (cr, x + 1, y, width - 2, height);
       cairo_fill (cr);
 
-      gdk_cairo_set_source_color (cr, &lighter);
+      gdk_cairo_set_source_rgba (cr, &lighter);
       add_path_line (cr, x, y, x, y + height - 2);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, bg_color);
+      gdk_cairo_set_source_rgba (cr, bg_color);
       add_path_line (cr, x + 1, y, x + 1, y + height - 2);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, &darker);
+      gdk_cairo_set_source_rgba (cr, &darker);
       add_path_line (cr, x + 2, y + height - 2, x + width - 2, y + height - 2);
       add_path_line (cr, x + width - 2, y, x + width - 2, y + height - 2);
       cairo_stroke (cr);
@@ -2178,21 +2175,21 @@ gtk_theming_engine_render_extension (GtkThemingEngine *engine,
 
       break;
     case GTK_POS_BOTTOM:
-      gdk_cairo_set_source_color (cr, bg_color);
+      gdk_cairo_set_source_rgba(cr, bg_color);
       cairo_rectangle (cr, x + 1, y, width - 2, height);
       cairo_fill (cr);
 
-      gdk_cairo_set_source_color (cr, &lighter);
+      gdk_cairo_set_source_rgba (cr, &lighter);
       add_path_line (cr, x + 1, y, x + width - 2, y);
       add_path_line (cr, x, y + 1, x, y + height - 1);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, bg_color);
+      gdk_cairo_set_source_rgba (cr, bg_color);
       add_path_line (cr, x + 1, y + 1, x + width - 2, y + 1);
       add_path_line (cr, x + 1, y + 1, x + 1, y + height - 1);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, &darker);
+      gdk_cairo_set_source_rgba (cr, &darker);
       add_path_line (cr, x + width - 2, y + 2, x + width - 2, y + height - 1);
       cairo_stroke (cr);
 
@@ -2202,19 +2199,19 @@ gtk_theming_engine_render_extension (GtkThemingEngine *engine,
 
       break;
     case GTK_POS_LEFT:
-      gdk_cairo_set_source_color (cr, bg_color);
+      gdk_cairo_set_source_rgba (cr, bg_color);
       cairo_rectangle (cr, x, y + 1, width, height - 2);
       cairo_fill (cr);
 
-      gdk_cairo_set_source_color (cr, &lighter);
+      gdk_cairo_set_source_rgba (cr, &lighter);
       add_path_line (cr, x, y, x + width - 2, y);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, bg_color);
+      gdk_cairo_set_source_rgba (cr, bg_color);
       add_path_line (cr, x + 1, y + 1, x + width - 2, y + 1);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, &darker);
+      gdk_cairo_set_source_rgba (cr, &darker);
       add_path_line (cr, x, y + height - 2, x + width - 2, y + height - 2);
       add_path_line (cr, x + width - 2, y + 2, x + width - 2, y + height - 2);
       cairo_stroke (cr);
@@ -2226,21 +2223,21 @@ gtk_theming_engine_render_extension (GtkThemingEngine *engine,
 
       break;
     case GTK_POS_RIGHT:
-      gdk_cairo_set_source_color (cr, bg_color);
+      gdk_cairo_set_source_rgba (cr, bg_color);
       cairo_rectangle (cr, x, y + 1, width, height - 2);
       cairo_fill (cr);
 
-      gdk_cairo_set_source_color (cr, &lighter);
+      gdk_cairo_set_source_rgba (cr, &lighter);
       add_path_line (cr, x + 1, y, x + width - 1, y);
       add_path_line (cr, x, y + 1, x, y + height - 2);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, bg_color);
+      gdk_cairo_set_source_rgba (cr, bg_color);
       add_path_line (cr, x + 1, y + 1, x + width - 1, y + 1);
       add_path_line (cr, x + 1, y + 1, x + 1, y + height - 2);
       cairo_stroke (cr);
 
-      gdk_cairo_set_source_color (cr, &darker);
+      gdk_cairo_set_source_rgba (cr, &darker);
       add_path_line (cr, x + 2, y + height - 2, x + width - 1, y + height - 2);
       cairo_stroke (cr);
 
@@ -2253,34 +2250,34 @@ gtk_theming_engine_render_extension (GtkThemingEngine *engine,
 
   cairo_restore (cr);
 
-  gdk_color_free (bg_color);
+  gdk_rgba_free (bg_color);
 }
 
 static void
-render_dot (cairo_t        *cr,
-            const GdkColor *lighter,
-            const GdkColor *darker,
-            gdouble         x,
-            gdouble         y,
-            gdouble         size)
+render_dot (cairo_t       *cr,
+            const GdkRGBA *lighter,
+            const GdkRGBA *darker,
+            gdouble        x,
+            gdouble        y,
+            gdouble        size)
 {
   size = CLAMP ((gint) size, 2, 3);
 
   if (size == 2)
     {
-      gdk_cairo_set_source_color (cr, lighter);
+      gdk_cairo_set_source_rgba (cr, lighter);
       cairo_rectangle (cr, x, y, 1, 1);
       cairo_rectangle (cr, x + 1, y + 1, 1, 1);
       cairo_fill (cr);
     }
   else if (size == 3)
     {
-      gdk_cairo_set_source_color (cr, lighter);
+      gdk_cairo_set_source_rgba (cr, lighter);
       cairo_rectangle (cr, x, y, 2, 1);
       cairo_rectangle (cr, x, y, 1, 2);
       cairo_fill (cr);
 
-      gdk_cairo_set_source_color (cr, darker);
+      gdk_cairo_set_source_rgba (cr, darker);
       cairo_rectangle (cr, x + 1, y + 1, 2, 1);
       cairo_rectangle (cr, x + 2, y, 1, 2);
       cairo_fill (cr);
@@ -2296,8 +2293,8 @@ gtk_theming_engine_render_handle (GtkThemingEngine *engine,
                                   gdouble           height)
 {
   GtkStateFlags flags;
-  GdkColor *bg_color;
-  GdkColor lighter, darker;
+  GdkRGBA *bg_color;
+  GdkRGBA lighter, darker;
   gint xx, yy;
 
   cairo_save (cr);
@@ -2311,7 +2308,7 @@ gtk_theming_engine_render_handle (GtkThemingEngine *engine,
   color_shade (bg_color, 0.7, &darker);
   color_shade (bg_color, 1.3, &lighter);
 
-  gdk_cairo_set_source_color (cr, bg_color);
+  gdk_cairo_set_source_rgba (cr, bg_color);
   cairo_rectangle (cr, x, y, width, height);
   cairo_fill (cr);
 
@@ -2336,5 +2333,5 @@ gtk_theming_engine_render_handle (GtkThemingEngine *engine,
 
   cairo_restore (cr);
 
-  gdk_color_free (bg_color);
+  gdk_rgba_free (bg_color);
 }



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