[gtk+] renderbackground: Remove unused functions

[Benjamin Otte <otte src gnome org>]

commit c22a9a03f91d47dd729eee40990adee67134a688
Author: Benjamin Otte <otte redhat com>
Date:   Wed Nov 16 19:31:47 2016 +0100

    renderbackground: Remove unused functions

 gtk/gtkrenderbackground.c        |  166 --------------------------------------
 gtk/gtkrenderbackgroundprivate.h |   11 ---
 2 files changed, 0 insertions(+), 177 deletions(-)
---
diff --git a/gtk/gtkrenderbackground.c b/gtk/gtkrenderbackground.c
index 2e850ca..c0a7d75 100644
--- a/gtk/gtkrenderbackground.c
+++ b/gtk/gtkrenderbackground.c
@@ -428,172 +428,6 @@ gtk_css_style_render_background (GtkCssStyle      *style,
   cairo_restore (cr);
 }
 
-static GskBlendMode
-translate_blend_mode (GtkCssBlendMode blend_mode)
-{
-  switch (blend_mode)
-    {
-    case GTK_CSS_BLEND_MODE_COLOR_BURN: return GSK_BLEND_MODE_COLOR_BURN;
-    case GTK_CSS_BLEND_MODE_COLOR_DODGE: return GSK_BLEND_MODE_COLOR_BURN;
-    case GTK_CSS_BLEND_MODE_DARKEN: return GSK_BLEND_MODE_DARKEN;
-    case GTK_CSS_BLEND_MODE_LIGHTEN: return GSK_BLEND_MODE_LIGHTEN;
-    case GTK_CSS_BLEND_MODE_DIFFERENCE: return GSK_BLEND_MODE_DIFFERENCE;
-    case GTK_CSS_BLEND_MODE_EXCLUSION: return GSK_BLEND_MODE_EXCLUSION;
-    case GTK_CSS_BLEND_MODE_HARD_LIGHT: return GSK_BLEND_MODE_HARD_LIGHT;
-    case GTK_CSS_BLEND_MODE_SOFT_LIGHT: return GSK_BLEND_MODE_SOFT_LIGHT;
-    case GTK_CSS_BLEND_MODE_MULTIPLY: return GSK_BLEND_MODE_MULTIPLY;
-    case GTK_CSS_BLEND_MODE_NORMAL: return GSK_BLEND_MODE_DEFAULT;
-    case GTK_CSS_BLEND_MODE_OVERLAY: return GSK_BLEND_MODE_OVERLAY;
-    case GTK_CSS_BLEND_MODE_SCREEN: return GSK_BLEND_MODE_SCREEN;
-    case GTK_CSS_BLEND_MODE_SATURATE:
-    case GTK_CSS_BLEND_MODE_LUMINOSITY:
-    case GTK_CSS_BLEND_MODE_COLOR:
-    case GTK_CSS_BLEND_MODE_HUE:
-    default:
-      g_warning ("CSS blend mode %d not supported by GSK yet", blend_mode);
-      return GSK_BLEND_MODE_DEFAULT;
-    }
-}
-
-void
-gtk_css_style_add_background_render_nodes (GtkCssStyle      *style,
-                                           GskRenderer      *renderer,
-                                           GskRenderNode    *parent_node,
-                                           graphene_rect_t  *bounds,
-                                           const char       *name,
-                                           gdouble           x,
-                                           gdouble           y,
-                                           gdouble           width,
-                                           gdouble           height,
-                                           GtkJunctionSides  junction)
-{
-  GskRenderNode *bg_node;
-  cairo_t *cr;
-  GtkCssValue *background_image;
-  GtkCssValue *blend_modes;
-  GtkCssValue *box_shadow;
-  const GdkRGBA *bg_color;
-  GtkThemingBackground bg;
-  gchar *str;
-  gint number_of_layers;
-  gint idx;
-
-  background_image = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BACKGROUND_IMAGE);
-  blend_modes = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BACKGROUND_BLEND_MODE);
-  bg_color = _gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, 
GTK_CSS_PROPERTY_BACKGROUND_COLOR));
-  box_shadow = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BOX_SHADOW);
-
-  /* This is the common default case of no background */
-  if (gtk_rgba_is_clear (bg_color) &&
-      _gtk_css_array_value_get_n_values (background_image) == 1 &&
-      _gtk_css_image_value_get_image (_gtk_css_array_value_get_nth (background_image, 0)) == NULL &&
-      _gtk_css_shadows_value_is_none (box_shadow))
-    return;
-
-  bg.style = style;
-  _gtk_theming_background_init_style (&bg, width, height, junction);
-
-  if (!_gtk_css_shadows_value_is_none (box_shadow))
-    {
-      str = g_strconcat ("Outer Shadow<", name, ">", NULL);
-      bg_node = gsk_renderer_create_render_node (renderer);
-      gsk_render_node_set_name (bg_node, str);
-      gsk_render_node_set_bounds (bg_node, bounds);
-      cr = gsk_render_node_get_draw_context (bg_node, renderer);
-      cairo_translate (cr, x, y);
-      _gtk_css_shadows_value_paint_box (box_shadow,
-                                        cr,
-                                        &bg.boxes[GTK_CSS_AREA_BORDER_BOX],
-                                        FALSE);
-      cairo_destroy (cr);
-      g_free (str);
-
-      gsk_render_node_append_child (parent_node, bg_node);
-      gsk_render_node_unref (bg_node);
-    }
-
-  if (!gtk_rgba_is_clear (bg_color))
-    {
-      str = g_strconcat ("Background Color<", name, ">", NULL);
-      bg_node = gsk_renderer_create_render_node (renderer);
-      gsk_render_node_set_name (bg_node, str);
-      gsk_render_node_set_bounds (bg_node, bounds);
-      cr = gsk_render_node_get_draw_context (bg_node, renderer);
-      cairo_translate (cr, x, y);
-      _gtk_theming_background_paint_color (&bg, cr, bg_color, background_image);
-      cairo_destroy (cr);
-      g_free (str);
-
-      gsk_render_node_append_child (parent_node, bg_node);
-      gsk_render_node_unref (bg_node);
-    }
-
-  number_of_layers = _gtk_css_array_value_get_n_values (background_image);
-
-  for (idx = number_of_layers - 1; idx >= 0; idx--)
-    {
-      GtkCssBlendMode blend_mode;
-
-      blend_mode = _gtk_css_blend_mode_value_get (_gtk_css_array_value_get_nth (blend_modes, idx));
-
-      str = g_strdup_printf ("Background%d<%s>", idx, name);
-      bg_node = gsk_renderer_create_render_node (renderer);
-
-      gsk_render_node_set_blend_mode (bg_node,
-                                      translate_blend_mode (blend_mode));
-      gsk_render_node_set_name (bg_node, str);
-      gsk_render_node_set_bounds (bg_node, bounds);
-      cr = gsk_render_node_get_draw_context (bg_node, renderer);
-      cairo_translate (cr, x, y);
-      _gtk_theming_background_paint_layer (&bg, idx, cr, GTK_CSS_BLEND_MODE_NORMAL);
-      cairo_destroy (cr);
-      g_free (str);
-
-      gsk_render_node_append_child (parent_node, bg_node);
-      gsk_render_node_unref (bg_node);
-    }
-
-  if (!_gtk_css_shadows_value_is_none (box_shadow))
-    {
-      str = g_strconcat ("Inner Shadow<", name, ">", NULL);
-      bg_node = gsk_renderer_create_render_node (renderer);
-      gsk_render_node_set_name (bg_node, str);
-      gsk_render_node_set_bounds (bg_node, bounds);
-      cr = gsk_render_node_get_draw_context (bg_node, renderer);
-      cairo_translate (cr, x, y);
-      _gtk_css_shadows_value_paint_box (box_shadow,
-                                        cr,
-                                        &bg.boxes[GTK_CSS_AREA_PADDING_BOX],
-                                        TRUE);
-      cairo_destroy (cr);
-      g_free (str);
-
-      gsk_render_node_append_child (parent_node, bg_node);
-      gsk_render_node_unref (bg_node);
-    }
-}
-
-static gboolean
-corner_value_is_right_angle (GtkCssValue *value)
-{
-  return _gtk_css_corner_value_get_x (value, 100) <= 0.0 &&
-         _gtk_css_corner_value_get_y (value, 100) <= 0.0;
-}
-
-gboolean
-gtk_css_style_render_background_is_opaque (GtkCssStyle *style)
-{
-  const GdkRGBA *color;
-
-  color = _gtk_css_rgba_value_get_rgba (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BACKGROUND_COLOR));
-
-  return color->alpha >= 1.0
-      && corner_value_is_right_angle (gtk_css_style_get_value (style, 
GTK_CSS_PROPERTY_BORDER_TOP_LEFT_RADIUS))
-      && corner_value_is_right_angle (gtk_css_style_get_value (style, 
GTK_CSS_PROPERTY_BORDER_TOP_RIGHT_RADIUS))
-      && corner_value_is_right_angle (gtk_css_style_get_value (style, 
GTK_CSS_PROPERTY_BORDER_BOTTOM_RIGHT_RADIUS))
-      && corner_value_is_right_angle (gtk_css_style_get_value (style, 
GTK_CSS_PROPERTY_BORDER_BOTTOM_LEFT_RADIUS));
-}
-
 void
 gtk_css_style_snapshot_background (GtkCssStyle      *style,
                                    GtkSnapshot      *snapshot,
diff --git a/gtk/gtkrenderbackgroundprivate.h b/gtk/gtkrenderbackgroundprivate.h
index cb6ab5b..ed931ab 100644
--- a/gtk/gtkrenderbackgroundprivate.h
+++ b/gtk/gtkrenderbackgroundprivate.h
@@ -36,17 +36,6 @@ void            gtk_css_style_render_background                 (GtkCssStyle
                                                                  gdouble               width,
                                                                  gdouble               height,
                                                                  GtkJunctionSides      junction);
-gboolean        gtk_css_style_render_background_is_opaque       (GtkCssStyle          *style);
-void            gtk_css_style_add_background_render_nodes       (GtkCssStyle      *style,
-                                                                 GskRenderer      *renderer,
-                                                                 GskRenderNode    *parent_node,
-                                                                 graphene_rect_t  *bounds,
-                                                                 const char       *name,
-                                                                 gdouble           x,
-                                                                 gdouble           y,
-                                                                 gdouble           width,
-                                                                 gdouble           height,
-                                                                 GtkJunctionSides  junction);
 void            gtk_css_style_snapshot_background               (GtkCssStyle          *style,
                                                                  GtkSnapshot          *snapshot,
                                                                  gdouble               width,