[gtk+] render: Make image effect not depend on state

[Benjamin Otte <otte src gnome org>]

commit 99c4f2dd3947c290e3ea19153202be3e43b22add
Author: Benjamin Otte <otte redhat com>
Date:   Wed Mar 18 15:22:09 2015 +0100

    render: Make image effect not depend on state
    
    Instead rely on -gtk-image-effect only. Adwaita should already work this
    way.
    
    Relying on state was a leftover feature from the GTK 2 days.

 gtk/gtkrender.c |   24 +++++++++++++-----------
 1 files changed, 13 insertions(+), 11 deletions(-)
---
diff --git a/gtk/gtkrender.c b/gtk/gtkrender.c
index caead6f..bb1f437 100644
--- a/gtk/gtkrender.c
+++ b/gtk/gtkrender.c
@@ -1077,7 +1077,6 @@ gtk_do_render_icon_pixbuf (GtkStyleContext     *context,
   GdkPixbuf *scaled;
   GdkPixbuf *stated;
   GdkPixbuf *base_pixbuf;
-  GtkStateFlags state;
   gint width = 1;
   gint height = 1;
   cairo_t *cr;
@@ -1089,8 +1088,6 @@ gtk_do_render_icon_pixbuf (GtkStyleContext     *context,
   base_pixbuf = gtk_icon_source_get_pixbuf (source);
   G_GNUC_END_IGNORE_DEPRECATIONS;
 
-  state = gtk_style_context_get_state (context);
-
   g_return_val_if_fail (base_pixbuf != NULL, NULL);
 
   if (size != (GtkIconSize) -1 &&
@@ -1122,9 +1119,9 @@ gtk_do_render_icon_pixbuf (GtkStyleContext     *context,
   image_effect = _gtk_css_image_effect_value_get
     (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_GTK_IMAGE_EFFECT));
 
-  if (image_effect == GTK_CSS_IMAGE_EFFECT_DIM ||
-      state & GTK_STATE_FLAG_INSENSITIVE)
+  switch (image_effect)
     {
+    case GTK_CSS_IMAGE_EFFECT_DIM:
       surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
                                            gdk_pixbuf_get_width (scaled),
                                            gdk_pixbuf_get_height (scaled));
@@ -1139,10 +1136,9 @@ gtk_do_render_icon_pixbuf (GtkStyleContext     *context,
                                            cairo_image_surface_get_width (surface),
                                            cairo_image_surface_get_height (surface));
       cairo_surface_destroy (surface);
-    }
-  else if (image_effect == GTK_CSS_IMAGE_EFFECT_HIGHLIGHT ||
-          state & GTK_STATE_FLAG_PRELIGHT)
-    {
+      break;
+
+    case GTK_CSS_IMAGE_EFFECT_HIGHLIGHT:
       surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
                                            gdk_pixbuf_get_width (scaled),
                                            gdk_pixbuf_get_height (scaled));
@@ -1158,9 +1154,15 @@ gtk_do_render_icon_pixbuf (GtkStyleContext     *context,
                                            cairo_image_surface_get_width (surface),
                                            cairo_image_surface_get_height (surface));
       cairo_surface_destroy (surface);
+      break;
+
+    default:
+      g_warn_if_reached ();
+      /* fall through */
+    case GTK_CSS_IMAGE_EFFECT_NONE:
+      stated = scaled;
+      break;
     }
-  else
-    stated = scaled;
 
   return stated;
 }