[gnome-themes-standard] adwaita: remove render_icon_pixbuf() implementation, now useless

[Cosimo Cecchi <cosimoc src gnome org>]

commit 5a42d78daba26a977c65ddecef57f9a30fc8bbad
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Thu Jun 9 23:01:34 2011 -0400

    adwaita: remove render_icon_pixbuf() implementation, now useless

 src/adwaita_engine.c |  162 --------------------------------------------------
 1 files changed, 0 insertions(+), 162 deletions(-)
---
diff --git a/src/adwaita_engine.c b/src/adwaita_engine.c
index 3d459d4..9e5469e 100644
--- a/src/adwaita_engine.c
+++ b/src/adwaita_engine.c
@@ -1301,167 +1301,6 @@ adwaita_engine_render_handle (GtkThemingEngine *engine,
     }
 }
 
-/* taken from gtkthemingengine.c */
-static GdkPixbuf *
-scale_or_ref (GdkPixbuf *src,
-              gint       width,
-              gint       height)
-{
-  if (width == gdk_pixbuf_get_width (src) &&
-      height == gdk_pixbuf_get_height (src))
-    return g_object_ref (src);
-  else
-    return gdk_pixbuf_scale_simple (src,
-                                    width, height,
-                                    GDK_INTERP_BILINEAR);
-}
-
-static gboolean
-lookup_icon_size (GtkThemingEngine *engine,
-                  GtkIconSize       size,
-                  gint             *width,
-                  gint             *height)
-{
-  GdkScreen *screen;
-  GtkSettings *settings;
-
-  screen = gtk_theming_engine_get_screen (engine);
-  settings = gtk_settings_get_for_screen (screen);
-
-  return gtk_icon_size_lookup_for_settings (settings, size, width, height);
-}
-
-/* Kudos to the gnome-panel guys. */
-static void
-colorshift_pixbuf (GdkPixbuf *src,
-                   GdkPixbuf *dest,
-                   gint       shift)
-{
-  gint i, j;
-  gint width, height, has_alpha, src_rowstride, dest_rowstride;
-  guchar *target_pixels;
-  guchar *original_pixels;
-  guchar *pix_src;
-  guchar *pix_dest;
-  int val;
-  guchar r, g, b;
-
-  has_alpha       = gdk_pixbuf_get_has_alpha (src);
-  width           = gdk_pixbuf_get_width (src);
-  height          = gdk_pixbuf_get_height (src);
-  src_rowstride   = gdk_pixbuf_get_rowstride (src);
-  dest_rowstride  = gdk_pixbuf_get_rowstride (dest);
-  original_pixels = gdk_pixbuf_get_pixels (src);
-  target_pixels   = gdk_pixbuf_get_pixels (dest);
-
-  for (i = 0; i < height; i++)
-    {
-      pix_dest = target_pixels   + i * dest_rowstride;
-      pix_src  = original_pixels + i * src_rowstride;
-
-      for (j = 0; j < width; j++)
-        {
-          r = *(pix_src++);
-          g = *(pix_src++);
-          b = *(pix_src++);
-
-          val = r + shift;
-          *(pix_dest++) = CLAMP (val, 0, 255);
-
-          val = g + shift;
-          *(pix_dest++) = CLAMP (val, 0, 255);
-
-          val = b + shift;
-          *(pix_dest++) = CLAMP (val, 0, 255);
-
-          if (has_alpha)
-            *(pix_dest++) = *(pix_src++);
-        }
-    }
-}
-
-static GdkPixbuf *
-adwaita_engine_render_icon_pixbuf (GtkThemingEngine    *engine,
-                                   const GtkIconSource *source,
-                                   GtkIconSize          size)
-{
-  GdkPixbuf *base_pixbuf;
-  GdkPixbuf *scaled;
-  GdkPixbuf *stated;
-  GtkStateFlags state;
-  gint width = 1;
-  gint height = 1;
-
-  cairo_surface_t *stated_surface;
-  cairo_t *cr;
-
-  base_pixbuf = gtk_icon_source_get_pixbuf (source);
-  state = gtk_theming_engine_get_state (engine);
-
-  g_return_val_if_fail (base_pixbuf != NULL, NULL);
-
-  if (size != (GtkIconSize) -1 &&
-      !lookup_icon_size (engine, size, &width, &height))
-    {
-      g_warning (G_STRLOC ": invalid icon size '%d'", size);
-      return NULL;
-    }
-
-  /* If the size was wildcarded, and we're allowed to scale, then scale; otherwise,
-   * leave it alone.
-   */
-  if (size != (GtkIconSize) -1 &&
-      gtk_icon_source_get_size_wildcarded (source))
-    scaled = scale_or_ref (base_pixbuf, width, height);
-  else
-    scaled = g_object_ref (base_pixbuf);
-
-  /* If the state was wildcarded, then generate a state. */
-  if (gtk_icon_source_get_state_wildcarded (source))
-    {
-      if (state & GTK_STATE_FLAG_INSENSITIVE)
-        {
-          /* dim the pixbuf with a 0.5 alpha black layer */
-          stated_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
-                                                       gdk_pixbuf_get_width (scaled),
-                                                       gdk_pixbuf_get_height (scaled));
-          cr = cairo_create (stated_surface);
-
-          gdk_cairo_set_source_pixbuf (cr, scaled, 0, 0);
-          cairo_paint (cr);
-
-          cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.5);
-          cairo_set_operator (cr, CAIRO_OPERATOR_DEST_IN);
-          cairo_paint (cr);
-
-          stated = gdk_pixbuf_get_from_surface (stated_surface,
-                                                0, 0,
-                                                cairo_image_surface_get_width (stated_surface),
-                                                cairo_image_surface_get_height (stated_surface));
-
-          g_object_unref (scaled);
-          cairo_destroy (cr);
-          cairo_surface_destroy (stated_surface);
-        }
-      else if (state & GTK_STATE_FLAG_PRELIGHT)
-        {
-          stated = gdk_pixbuf_copy (scaled);
-          colorshift_pixbuf (scaled, stated, 30);
-          g_object_unref (scaled);
-        }
-      else
-        {
-          stated = scaled;
-        }
-    }
-  else
-    {
-      stated = scaled;
-    }
-
-  return stated;
-}
-
 static void
 adwaita_engine_render_line (GtkThemingEngine *engine,
                             cairo_t *cr,
@@ -1522,7 +1361,6 @@ adwaita_engine_class_init (AdwaitaEngineClass *klass)
   engine_class->render_activity = adwaita_engine_render_activity;
   engine_class->render_slider = adwaita_engine_render_slider;
   engine_class->render_handle = adwaita_engine_render_handle;
-  engine_class->render_icon_pixbuf = adwaita_engine_render_icon_pixbuf;
   engine_class->render_line = adwaita_engine_render_line;
 
   gtk_theming_engine_register_property (ADWAITA_NAMESPACE, NULL,