[gtk] shadowvalue: Remove unused API

[Timm Bäder <baedert src gnome org>]

commit 7ac9fe3b609eff36ce48c00e48324c31e908cfd4
Author: Timm Bäder <mail baedert org>
Date:   Sat Jan 5 09:09:58 2019 +0100

    shadowvalue: Remove unused API

 gtk/gtkcssshadowsvalue.c        |  14 ----
 gtk/gtkcssshadowsvalueprivate.h |   3 -
 gtk/gtkcssshadowvalue.c         | 151 ----------------------------------------
 3 files changed, 168 deletions(-)
---
diff --git a/gtk/gtkcssshadowsvalue.c b/gtk/gtkcssshadowsvalue.c
index 76fc826ad9..d44e7a4a5b 100644
--- a/gtk/gtkcssshadowsvalue.c
+++ b/gtk/gtkcssshadowsvalue.c
@@ -287,20 +287,6 @@ gtk_css_shadows_value_get_shadows (const GtkCssValue  *shadows,
     gtk_css_shadow_value_get_shadow (shadows->values[i], &out_shadows[i]);
 }
 
-void
-_gtk_css_shadows_value_paint_icon (const GtkCssValue *shadows,
-                                   cairo_t           *cr)
-{
-  guint i;
-
-  g_return_if_fail (shadows->class == &GTK_CSS_VALUE_SHADOWS);
-
-  for (i = 0; i < shadows->len; i++)
-    {
-      _gtk_css_shadow_value_paint_icon (shadows->values[i], cr);
-    }
-}
-
 void
 gtk_css_shadows_value_snapshot_outset (const GtkCssValue   *shadows,
                                        GtkSnapshot         *snapshot,
diff --git a/gtk/gtkcssshadowsvalueprivate.h b/gtk/gtkcssshadowsvalueprivate.h
index f5a5151b42..e79a131a1f 100644
--- a/gtk/gtkcssshadowsvalueprivate.h
+++ b/gtk/gtkcssshadowsvalueprivate.h
@@ -41,9 +41,6 @@ gsize           gtk_css_shadows_value_get_n_shadows   (const GtkCssValue
 void            gtk_css_shadows_value_get_shadows    (const GtkCssValue        *shadows,
                                                       GskShadow                *out_shadows);
 
-void            _gtk_css_shadows_value_paint_icon     (const GtkCssValue        *shadows,
-                                                      cairo_t                  *cr);
-
 void            gtk_css_shadows_value_snapshot_outset (const GtkCssValue        *shadows,
                                                        GtkSnapshot              *snapshot,
                                                        const GskRoundedRect     *border_box);
diff --git a/gtk/gtkcssshadowvalue.c b/gtk/gtkcssshadowvalue.c
index 0abcae13cf..b04c1f58c3 100644
--- a/gtk/gtkcssshadowvalue.c
+++ b/gtk/gtkcssshadowvalue.c
@@ -308,157 +308,6 @@ fail:
   return NULL;
 }
 
-static gboolean
-needs_blur (const GtkCssValue *shadow)
-{
-  double radius = _gtk_css_number_value_get (shadow->radius, 0);
-
-  /* The code doesn't actually do any blurring for radius 1, as it
-   * ends up with box filter size 1 */
-  if (radius <= 1.0)
-    return FALSE;
-
-  return TRUE;
-}
-
-static const cairo_user_data_key_t original_cr_key;
-
-static cairo_t *
-gtk_css_shadow_value_start_drawing (const GtkCssValue *shadow,
-                                    cairo_t           *cr,
-                                    GskBlurFlags       blur_flags)
-{
-  cairo_rectangle_int_t clip_rect;
-  cairo_surface_t *surface;
-  cairo_t *blur_cr;
-  gdouble radius, clip_radius;
-  gdouble x_scale, y_scale;
-  gboolean blur_x = (blur_flags & GSK_BLUR_X) != 0;
-  gboolean blur_y = (blur_flags & GSK_BLUR_Y) != 0;
-
-  if (!needs_blur (shadow))
-    return cr;
-
-  gdk_cairo_get_clip_rectangle (cr, &clip_rect);
-
-  radius = _gtk_css_number_value_get (shadow->radius, 0);
-  clip_radius = gsk_cairo_blur_compute_pixels (radius);
-
-  x_scale = y_scale = 1;
-  cairo_surface_get_device_scale (cairo_get_target (cr), &x_scale, &y_scale);
-
-  if (blur_flags & GSK_BLUR_REPEAT)
-    {
-      if (!blur_x)
-        clip_rect.width = 1;
-      if (!blur_y)
-        clip_rect.height = 1;
-    }
-
-  /* Create a larger surface to center the blur. */
-  surface = cairo_surface_create_similar_image (cairo_get_target (cr),
-                                                CAIRO_FORMAT_A8,
-                                                x_scale * (clip_rect.width + (blur_x ? 2 * clip_radius : 0)),
-                                                y_scale * (clip_rect.height + (blur_y ? 2 * clip_radius : 
0)));
-  cairo_surface_set_device_scale (surface, x_scale, y_scale);
-  cairo_surface_set_device_offset (surface,
-                                    x_scale * ((blur_x ? clip_radius: 0) - clip_rect.x),
-                                    y_scale * ((blur_y ? clip_radius: 0) - clip_rect.y));
-
-  blur_cr = cairo_create (surface);
-  cairo_set_user_data (blur_cr, &original_cr_key, cairo_reference (cr), (cairo_destroy_func_t) 
cairo_destroy);
-
-  if (cairo_has_current_point (cr))
-    {
-      double x, y;
-
-      cairo_get_current_point (cr, &x, &y);
-      cairo_move_to (blur_cr, x, y);
-    }
-
-  return blur_cr;
-}
-
-static void
-mask_surface_repeat (cairo_t         *cr,
-                     cairo_surface_t *surface)
-{
-  cairo_pattern_t *pattern;
-
-  pattern = cairo_pattern_create_for_surface (surface);
-  cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
-
-  cairo_mask (cr, pattern);
-
-  cairo_pattern_destroy (pattern);
-}
-
-static cairo_t *
-gtk_css_shadow_value_finish_drawing (const GtkCssValue *shadow,
-                                     cairo_t           *cr,
-                                     GskBlurFlags       blur_flags)
-{
-  gdouble radius;
-  cairo_t *original_cr;
-  cairo_surface_t *surface;
-  gdouble x_scale;
-
-  if (!needs_blur (shadow))
-    return cr;
-
-  original_cr = cairo_get_user_data (cr, &original_cr_key);
-
-  /* Blur the surface. */
-  surface = cairo_get_target (cr);
-  radius = _gtk_css_number_value_get (shadow->radius, 0);
-
-  x_scale = 1;
-  cairo_surface_get_device_scale (cairo_get_target (cr), &x_scale, NULL);
-
-  gsk_cairo_blur_surface (surface, x_scale * radius, blur_flags);
-
-  gdk_cairo_set_source_rgba (original_cr, _gtk_css_rgba_value_get_rgba (shadow->color));
-  if (blur_flags & GSK_BLUR_REPEAT)
-    mask_surface_repeat (original_cr, surface);
-  else
-    cairo_mask_surface (original_cr, surface, 0, 0);
-
-  cairo_destroy (cr);
-
-  cairo_surface_destroy (surface);
-
-  return original_cr;
-}
-
-void
-_gtk_css_shadow_value_paint_icon (const GtkCssValue *shadow,
-                                 cairo_t           *cr)
-{
-  cairo_pattern_t *pattern;
-
-  g_return_if_fail (shadow->class == &GTK_CSS_VALUE_SHADOW);
-
-  /* We don't need to draw invisible shadows */
-  if (gdk_rgba_is_clear (_gtk_css_rgba_value_get_rgba (shadow->color)))
-    return;
-
-  cairo_save (cr);
-  pattern = cairo_pattern_reference (cairo_get_source (cr));
-
-  gdk_cairo_set_source_rgba (cr, _gtk_css_rgba_value_get_rgba (shadow->color));
-  cr = gtk_css_shadow_value_start_drawing (shadow, cr, GSK_BLUR_X | GSK_BLUR_Y);
-
-  cairo_translate (cr,
-                   _gtk_css_number_value_get (shadow->hoffset, 0),
-                   _gtk_css_number_value_get (shadow->voffset, 0));
-  cairo_mask (cr, pattern);
-
-  cr = gtk_css_shadow_value_finish_drawing (shadow, cr, GSK_BLUR_X | GSK_BLUR_Y);
-
-  cairo_restore (cr);
-  cairo_pattern_destroy (pattern);
-}
-
 gboolean
 _gtk_css_shadow_value_get_inset (const GtkCssValue *shadow)
 {