wip: static valuesmatthiasc/css-values

Determine whether a css value is 'static' at creation
time. Static values don't need to have compute() called,
since their value is always the same, so we can just
ref them.

19 files changed, 237 insertions, 136 deletions

diff --git a/gtk/gtkcssarrayvalue.c b/gtk/gtkcssarrayvalue.c
index 02ece79fbd..889c4da01b 100644
--- a/gtk/gtkcssarrayvalue.c
+++ b/gtk/gtkcssarrayvalue.c
@@ -392,14 +392,27 @@ _gtk_css_array_value_new_from_array (GtkCssValue **values,
                                      guint         n_values)
 {
   GtkCssValue *result;
+  gboolean is_static;
+  int i;
            
   g_return_val_if_fail (values != NULL, NULL);
   g_return_val_if_fail (n_values > 0, NULL);
 
   if (n_values == 1)
     return values[0];
-         
+
+  is_static = TRUE;
+  for (i = 0; i < n_values; i++)
+    {
+      if (!values[i]->is_static)
+        {
+          is_static = FALSE;
+          break;
+        }
+   }
+
   result = _gtk_css_value_alloc (&GTK_CSS_VALUE_ARRAY, sizeof (GtkCssValue) + sizeof (GtkCssValue *) * (n_values - 1));
+  result->is_static = is_static;
   result->n_values = n_values;
   memcpy (&result->values[0], values, sizeof (GtkCssValue *) * n_values);
             
diff --git a/gtk/gtkcssbgsizevalue.c b/gtk/gtkcssbgsizevalue.c
index 7b9c0d1c10..c64234b705 100644
--- a/gtk/gtkcssbgsizevalue.c
+++ b/gtk/gtkcssbgsizevalue.c
@@ -163,9 +163,9 @@ static const GtkCssValueClass GTK_CSS_VALUE_BG_SIZE = {
   gtk_css_value_bg_size_print
 };
 
-static GtkCssValue auto_singleton = { &GTK_CSS_VALUE_BG_SIZE, 1, FALSE, FALSE, NULL, NULL };
-static GtkCssValue cover_singleton = { &GTK_CSS_VALUE_BG_SIZE, 1, TRUE, FALSE, NULL, NULL };
-static GtkCssValue contain_singleton = { &GTK_CSS_VALUE_BG_SIZE, 1, FALSE, TRUE, NULL, NULL };
+static GtkCssValue auto_singleton = { &GTK_CSS_VALUE_BG_SIZE, 1, 0, FALSE, FALSE, NULL, NULL };
+static GtkCssValue cover_singleton = { &GTK_CSS_VALUE_BG_SIZE, 1, 0, TRUE, FALSE, NULL, NULL };
+static GtkCssValue contain_singleton = { &GTK_CSS_VALUE_BG_SIZE, 1, 0, FALSE, TRUE, NULL, NULL };
 
 GtkCssValue *
 _gtk_css_bg_size_value_new (GtkCssValue *x,
diff --git a/gtk/gtkcsscolorvalue.c b/gtk/gtkcsscolorvalue.c
index 450bf9f0ca..410beded8b 100644
--- a/gtk/gtkcsscolorvalue.c
+++ b/gtk/gtkcsscolorvalue.c
@@ -465,9 +465,9 @@ _gtk_css_color_value_resolve (GtkCssValue      *color,
   return value;
 }
 
-static GtkCssValue transparent_black_singleton = { &GTK_CSS_VALUE_COLOR, 1, COLOR_TYPE_LITERAL, NULL,
+static GtkCssValue transparent_black_singleton = { &GTK_CSS_VALUE_COLOR, 1, 1, COLOR_TYPE_LITERAL, NULL,
                                                    .sym_col.rgba = {0, 0, 0, 0} };
-static GtkCssValue white_singleton             = { &GTK_CSS_VALUE_COLOR, 1, COLOR_TYPE_LITERAL, NULL,
+static GtkCssValue white_singleton             = { &GTK_CSS_VALUE_COLOR, 1, 1, COLOR_TYPE_LITERAL, NULL,
                                                    .sym_col.rgba = {1, 1, 1, 1} };
 
 
@@ -491,6 +491,7 @@ _gtk_css_color_value_new_literal (const GdkRGBA *color)
   g_return_val_if_fail (color != NULL, NULL);
 
   value = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_COLOR);
+  value->is_static = TRUE;
   value->type = COLOR_TYPE_LITERAL;
   value->sym_col.rgba = *color;
 
@@ -594,7 +595,7 @@ _gtk_css_color_value_new_mix (GtkCssValue *color1,
 GtkCssValue *
 _gtk_css_color_value_new_current_color (void)
 {
-  static GtkCssValue current_color = { &GTK_CSS_VALUE_COLOR, 1, COLOR_TYPE_CURRENT_COLOR, NULL, };
+  static GtkCssValue current_color = { &GTK_CSS_VALUE_COLOR, 1, 0, COLOR_TYPE_CURRENT_COLOR, NULL, };
 
   return _gtk_css_value_ref (&current_color);
 }
diff --git a/gtk/gtkcssdimensionvalue.c b/gtk/gtkcssdimensionvalue.c
index e4463bec8d..8611226045 100644
--- a/gtk/gtkcssdimensionvalue.c
+++ b/gtk/gtkcssdimensionvalue.c
@@ -301,44 +301,45 @@ gtk_css_dimension_value_new (double     value,
                              GtkCssUnit unit)
 {
   static GtkCssValue number_singletons[] = {
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_NUMBER, 0 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_NUMBER, 1 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_NUMBER, 96 }, /* DPI default */
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_NUMBER, 0 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_NUMBER, 1 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_NUMBER, 96 }, /* DPI default */
   };
   static GtkCssValue px_singletons[] = {
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 0 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 1 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 2 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 3 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 4 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 5 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 6 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 7 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 8 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 16 }, /* Icon size default */
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 32 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 10 * 96.0 / 72.0 }, /* font size 10 */
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PX, 11 * 96.0 / 72.0 }, /* font size 11 */
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 0 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 1 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 2 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 3 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 4 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 5 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 6 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 7 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 8 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 16 }, /* Icon size default */
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 32 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 10 * 96.0 / 72.0 }, /* font size 10 */
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_PX, 11 * 96.0 / 72.0 }, /* font size 11 */
   };
   static GtkCssValue percent_singletons[] = {
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PERCENT, 0 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PERCENT, 50 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_PERCENT, 100 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 0, GTK_CSS_PERCENT, 0 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 0, GTK_CSS_PERCENT, 50 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 0, GTK_CSS_PERCENT, 100 },
   };
   static GtkCssValue second_singletons[] = {
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_S, 0 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_S, 0.15 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_S, 0.2 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_S, 0.3 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_S, 1 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_S, 0 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_S, 0.15 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_S, 0.2 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_S, 0.3 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_S, 1 },
   };
   static GtkCssValue deg_singletons[] = {
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_DEG, 0   },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_DEG, 90  },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_DEG, 180 },
-    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, GTK_CSS_DEG, 270 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_DEG, 0   },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_DEG, 90  },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_DEG, 180 },
+    { &GTK_CSS_VALUE_DIMENSION.value_class, 1, 1, GTK_CSS_DEG, 270 },
   };
   GtkCssValue *result;
+  gboolean is_static = FALSE;
 
   switch ((guint)unit)
     {
@@ -349,6 +350,7 @@ gtk_css_dimension_value_new (double     value,
       if (value == 96)
         return _gtk_css_value_ref (&number_singletons[2]);
 
+      is_static = TRUE;
       break;
 
     case GTK_CSS_PX:
@@ -371,6 +373,7 @@ gtk_css_dimension_value_new (double     value,
       if (value == 11 * 96.0 / 72.0)
         return _gtk_css_value_ref (&px_singletons[12]);
 
+      is_static = TRUE;
       break;
 
     case GTK_CSS_PERCENT:
@@ -394,6 +397,8 @@ gtk_css_dimension_value_new (double     value,
         return _gtk_css_value_ref (&second_singletons[3]);
       if (value == 1)
         return _gtk_css_value_ref (&second_singletons[4]);
+
+      is_static = TRUE;
       break;
 
     case GTK_CSS_DEG:
@@ -405,27 +410,32 @@ gtk_css_dimension_value_new (double     value,
         return _gtk_css_value_ref (&deg_singletons[2]);
       if (value == 270)
         return _gtk_css_value_ref (&deg_singletons[3]);
-
+   
+      is_static = TRUE;
       break;
 
     case GTK_CSS_RAD:
       value = value * 360.0 / (2 * G_PI);
       unit = GTK_CSS_DEG;
+      is_static = TRUE;
       break;
 
     case GTK_CSS_GRAD:
       value = value * 360.0 / 400.0;
       unit = GTK_CSS_DEG;
+      is_static = TRUE;
       break;
 
     case GTK_CSS_TURN:
       value = value * 360.0;
       unit = GTK_CSS_DEG;
+      is_static = TRUE;
       break;
 
     case GTK_CSS_MS:
       value = value / 1000.0;
       unit = GTK_CSS_S;
+      is_static = TRUE;
       break;
 
     default:
@@ -433,6 +443,7 @@ gtk_css_dimension_value_new (double     value,
     }
 
   result = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_DIMENSION.value_class);
+  result->is_static = is_static;
   result->unit = unit;
   result->value = value;
 
@@ -547,6 +558,9 @@ gtk_css_dimension_value_parse (GtkCssParser           *parser,
     }
 
   result = gtk_css_dimension_value_new (number, unit);
+  if (flags & GTK_CSS_PARSE_NON_STATIC)
+    result->is_static = FALSE;
+
   gtk_css_parser_consume_token (parser);
 
   return result;
diff --git a/gtk/gtkcsseasevalue.c b/gtk/gtkcsseasevalue.c
index 7e7c6be7bd..2927ecfb4f 100644
--- a/gtk/gtkcsseasevalue.c
+++ b/gtk/gtkcsseasevalue.c
@@ -159,6 +159,7 @@ _gtk_css_ease_value_new_cubic_bezier (double x1,
   g_return_val_if_fail (x2 <= 1.0, NULL);
 
   value = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_EASE);
+  value->is_static = TRUE;
   
   value->type = GTK_CSS_EASE_CUBIC_BEZIER;
   value->u.cubic.x1 = x1;
@@ -178,6 +179,7 @@ _gtk_css_ease_value_new_steps (guint n_steps,
   g_return_val_if_fail (n_steps > 0, NULL);
 
   value = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_EASE);
+  value->is_static = TRUE;
   
   value->type = GTK_CSS_EASE_STEPS;
   value->u.steps.steps = n_steps;
diff --git a/gtk/gtkcssenumvalue.c b/gtk/gtkcssenumvalue.c
index 1d40344866..6aa75df6e8 100644
--- a/gtk/gtkcssenumvalue.c
+++ b/gtk/gtkcssenumvalue.c
@@ -89,16 +89,16 @@ static const GtkCssValueClass GTK_CSS_VALUE_BORDER_STYLE = {
 };
 
 static GtkCssValue border_style_values[] = {
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_NONE, "none" },
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_SOLID, "solid" },
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_INSET, "inset" },
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_OUTSET, "outset" },
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_HIDDEN, "hidden" },
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_DOTTED, "dotted" },
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_DASHED, "dashed" },
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_DOUBLE, "double" },
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_GROOVE, "groove" },
-  { &GTK_CSS_VALUE_BORDER_STYLE, 1, GTK_BORDER_STYLE_RIDGE, "ridge" }
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_NONE, "none" },
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_SOLID, "solid" },
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_INSET, "inset" },
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_OUTSET, "outset" },
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_HIDDEN, "hidden" },
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_DOTTED, "dotted" },
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_DASHED, "dashed" },
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_DOUBLE, "double" },
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_GROOVE, "groove" },
+  { &GTK_CSS_VALUE_BORDER_STYLE, 1, 1, GTK_BORDER_STYLE_RIDGE, "ridge" }
 };
 
 GtkCssValue *
@@ -147,22 +147,22 @@ static const GtkCssValueClass GTK_CSS_VALUE_BLEND_MODE = {
 };
 
 static GtkCssValue blend_mode_values[] = {
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_DEFAULT, "normal" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_MULTIPLY, "multiply" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_SCREEN, "screen" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_OVERLAY, "overlay" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_DARKEN, "darken" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_LIGHTEN, "lighten" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_COLOR_DODGE, "color-dodge" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_COLOR_BURN, "color-burn" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_HARD_LIGHT, "hard-light" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_SOFT_LIGHT, "soft-light" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_DIFFERENCE, "difference" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_EXCLUSION, "exclusion" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_COLOR, "color" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_HUE, "hue" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_SATURATION, "saturation" },
-  { &GTK_CSS_VALUE_BLEND_MODE, 1, GSK_BLEND_MODE_LUMINOSITY, "luminosity" }
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_DEFAULT, "normal" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_MULTIPLY, "multiply" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_SCREEN, "screen" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_OVERLAY, "overlay" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_DARKEN, "darken" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_LIGHTEN, "lighten" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_COLOR_DODGE, "color-dodge" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_COLOR_BURN, "color-burn" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_HARD_LIGHT, "hard-light" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_SOFT_LIGHT, "soft-light" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_DIFFERENCE, "difference" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_EXCLUSION, "exclusion" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_COLOR, "color" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_HUE, "hue" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_SATURATION, "saturation" },
+  { &GTK_CSS_VALUE_BLEND_MODE, 1, 1, GSK_BLEND_MODE_LUMINOSITY, "luminosity" }
 };
 
 GtkCssValue *
@@ -298,15 +298,15 @@ static const GtkCssValueClass GTK_CSS_VALUE_FONT_SIZE = {
 };
 
 static GtkCssValue font_size_values[] = {
-  { &GTK_CSS_VALUE_FONT_SIZE, 1, GTK_CSS_FONT_SIZE_SMALLER, "smaller" },
-  { &GTK_CSS_VALUE_FONT_SIZE, 1, GTK_CSS_FONT_SIZE_LARGER, "larger" },
-  { &GTK_CSS_VALUE_FONT_SIZE, 1, GTK_CSS_FONT_SIZE_XX_SMALL, "xx-small" },
-  { &GTK_CSS_VALUE_FONT_SIZE, 1, GTK_CSS_FONT_SIZE_X_SMALL, "x-small" },
-  { &GTK_CSS_VALUE_FONT_SIZE, 1, GTK_CSS_FONT_SIZE_SMALL, "small" },
-  { &GTK_CSS_VALUE_FONT_SIZE, 1, GTK_CSS_FONT_SIZE_MEDIUM, "medium" },
-  { &GTK_CSS_VALUE_FONT_SIZE, 1, GTK_CSS_FONT_SIZE_LARGE, "large" },
-  { &GTK_CSS_VALUE_FONT_SIZE, 1, GTK_CSS_FONT_SIZE_X_LARGE, "x-large" },
-  { &GTK_CSS_VALUE_FONT_SIZE, 1, GTK_CSS_FONT_SIZE_XX_LARGE, "xx-large" }
+  { &GTK_CSS_VALUE_FONT_SIZE, 1, 0, GTK_CSS_FONT_SIZE_SMALLER, "smaller" },
+  { &GTK_CSS_VALUE_FONT_SIZE, 1, 0, GTK_CSS_FONT_SIZE_LARGER, "larger" },
+  { &GTK_CSS_VALUE_FONT_SIZE, 1, 0, GTK_CSS_FONT_SIZE_XX_SMALL, "xx-small" },
+  { &GTK_CSS_VALUE_FONT_SIZE, 1, 0, GTK_CSS_FONT_SIZE_X_SMALL, "x-small" },
+  { &GTK_CSS_VALUE_FONT_SIZE, 1, 0, GTK_CSS_FONT_SIZE_SMALL, "small" },
+  { &GTK_CSS_VALUE_FONT_SIZE, 1, 0, GTK_CSS_FONT_SIZE_MEDIUM, "medium" },
+  { &GTK_CSS_VALUE_FONT_SIZE, 1, 0, GTK_CSS_FONT_SIZE_LARGE, "large" },
+  { &GTK_CSS_VALUE_FONT_SIZE, 1, 0, GTK_CSS_FONT_SIZE_X_LARGE, "x-large" },
+  { &GTK_CSS_VALUE_FONT_SIZE, 1, 0, GTK_CSS_FONT_SIZE_XX_LARGE, "xx-large" }
 };
 
 GtkCssValue *
@@ -355,9 +355,9 @@ static const GtkCssValueClass GTK_CSS_VALUE_FONT_STYLE = {
 };
 
 static GtkCssValue font_style_values[] = {
-  { &GTK_CSS_VALUE_FONT_STYLE, 1, PANGO_STYLE_NORMAL, "normal" },
-  { &GTK_CSS_VALUE_FONT_STYLE, 1, PANGO_STYLE_OBLIQUE, "oblique" },
-  { &GTK_CSS_VALUE_FONT_STYLE, 1, PANGO_STYLE_ITALIC, "italic" }
+  { &GTK_CSS_VALUE_FONT_STYLE, 1, 1, PANGO_STYLE_NORMAL, "normal" },
+  { &GTK_CSS_VALUE_FONT_STYLE, 1, 1, PANGO_STYLE_OBLIQUE, "oblique" },
+  { &GTK_CSS_VALUE_FONT_STYLE, 1, 1, PANGO_STYLE_ITALIC, "italic" }
 };
 
 GtkCssValue *
@@ -454,8 +454,8 @@ static const GtkCssValueClass GTK_CSS_VALUE_FONT_WEIGHT = {
 };
 
 static GtkCssValue font_weight_values[] = {
-  { &GTK_CSS_VALUE_FONT_WEIGHT, 1, BOLDER, "bolder" },
-  { &GTK_CSS_VALUE_FONT_WEIGHT, 1, LIGHTER, "lighter" },
+  { &GTK_CSS_VALUE_FONT_WEIGHT, 1, 0, BOLDER, "bolder" },
+  { &GTK_CSS_VALUE_FONT_WEIGHT, 1, 0, LIGHTER, "lighter" },
 };
 
 GtkCssValue *
@@ -504,15 +504,15 @@ static const GtkCssValueClass GTK_CSS_VALUE_FONT_STRETCH = {
 };
 
 static GtkCssValue font_stretch_values[] = {
-  { &GTK_CSS_VALUE_FONT_STRETCH, 1, PANGO_STRETCH_ULTRA_CONDENSED, "ultra-condensed" },
-  { &GTK_CSS_VALUE_FONT_STRETCH, 1, PANGO_STRETCH_EXTRA_CONDENSED, "extra-condensed" },
-  { &GTK_CSS_VALUE_FONT_STRETCH, 1, PANGO_STRETCH_CONDENSED, "condensed" },
-  { &GTK_CSS_VALUE_FONT_STRETCH, 1, PANGO_STRETCH_SEMI_CONDENSED, "semi-condensed" },
-  { &GTK_CSS_VALUE_FONT_STRETCH, 1, PANGO_STRETCH_NORMAL, "normal" },
-  { &GTK_CSS_VALUE_FONT_STRETCH, 1, PANGO_STRETCH_SEMI_EXPANDED, "semi-expanded" },
-  { &GTK_CSS_VALUE_FONT_STRETCH, 1, PANGO_STRETCH_EXPANDED, "expanded" },
-  { &GTK_CSS_VALUE_FONT_STRETCH, 1, PANGO_STRETCH_EXTRA_EXPANDED, "extra-expanded" },
-  { &GTK_CSS_VALUE_FONT_STRETCH, 1, PANGO_STRETCH_ULTRA_EXPANDED, "ultra-expanded" },
+  { &GTK_CSS_VALUE_FONT_STRETCH, 1, 1, PANGO_STRETCH_ULTRA_CONDENSED, "ultra-condensed" },
+  { &GTK_CSS_VALUE_FONT_STRETCH, 1, 1, PANGO_STRETCH_EXTRA_CONDENSED, "extra-condensed" },
+  { &GTK_CSS_VALUE_FONT_STRETCH, 1, 1, PANGO_STRETCH_CONDENSED, "condensed" },
+  { &GTK_CSS_VALUE_FONT_STRETCH, 1, 1, PANGO_STRETCH_SEMI_CONDENSED, "semi-condensed" },
+  { &GTK_CSS_VALUE_FONT_STRETCH, 1, 1, PANGO_STRETCH_NORMAL, "normal" },
+  { &GTK_CSS_VALUE_FONT_STRETCH, 1, 1, PANGO_STRETCH_SEMI_EXPANDED, "semi-expanded" },
+  { &GTK_CSS_VALUE_FONT_STRETCH, 1, 1, PANGO_STRETCH_EXPANDED, "expanded" },
+  { &GTK_CSS_VALUE_FONT_STRETCH, 1, 1, PANGO_STRETCH_EXTRA_EXPANDED, "extra-expanded" },
+  { &GTK_CSS_VALUE_FONT_STRETCH, 1, 1, PANGO_STRETCH_ULTRA_EXPANDED, "ultra-expanded" },
 };
 
 GtkCssValue *
@@ -561,9 +561,9 @@ static const GtkCssValueClass GTK_CSS_VALUE_TEXT_DECORATION_LINE = {
 };
 
 static GtkCssValue text_decoration_line_values[] = {
-  { &GTK_CSS_VALUE_TEXT_DECORATION_LINE, 1, GTK_CSS_TEXT_DECORATION_LINE_NONE, "none" },
-  { &GTK_CSS_VALUE_TEXT_DECORATION_LINE, 1, GTK_CSS_TEXT_DECORATION_LINE_UNDERLINE, "underline" },
-  { &GTK_CSS_VALUE_TEXT_DECORATION_LINE, 1, GTK_CSS_TEXT_DECORATION_LINE_LINE_THROUGH, "line-through" },
+  { &GTK_CSS_VALUE_TEXT_DECORATION_LINE, 1, 1, GTK_CSS_TEXT_DECORATION_LINE_NONE, "none" },
+  { &GTK_CSS_VALUE_TEXT_DECORATION_LINE, 1, 1, GTK_CSS_TEXT_DECORATION_LINE_UNDERLINE, "underline" },
+  { &GTK_CSS_VALUE_TEXT_DECORATION_LINE, 1, 1, GTK_CSS_TEXT_DECORATION_LINE_LINE_THROUGH, "line-through" },
 };
 
 GtkCssValue *
@@ -612,9 +612,9 @@ static const GtkCssValueClass GTK_CSS_VALUE_TEXT_DECORATION_STYLE = {
 };
 
 static GtkCssValue text_decoration_style_values[] = {
-  { &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, 1, GTK_CSS_TEXT_DECORATION_STYLE_SOLID, "solid" },
-  { &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, 1, GTK_CSS_TEXT_DECORATION_STYLE_DOUBLE, "double" },
-  { &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, 1, GTK_CSS_TEXT_DECORATION_STYLE_WAVY, "wavy" },
+  { &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, 1, 1, GTK_CSS_TEXT_DECORATION_STYLE_SOLID, "solid" },
+  { &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, 1, 1, GTK_CSS_TEXT_DECORATION_STYLE_DOUBLE, "double" },
+  { &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, 1, 1, GTK_CSS_TEXT_DECORATION_STYLE_WAVY, "wavy" },
 };
 
 GtkCssValue *
@@ -663,9 +663,9 @@ static const GtkCssValueClass GTK_CSS_VALUE_AREA = {
 };
 
 static GtkCssValue area_values[] = {
-  { &GTK_CSS_VALUE_AREA, 1, GTK_CSS_AREA_BORDER_BOX, "border-box" },
-  { &GTK_CSS_VALUE_AREA, 1, GTK_CSS_AREA_PADDING_BOX, "padding-box" },
-  { &GTK_CSS_VALUE_AREA, 1, GTK_CSS_AREA_CONTENT_BOX, "content-box" }
+  { &GTK_CSS_VALUE_AREA, 1, 1, GTK_CSS_AREA_BORDER_BOX, "border-box" },
+  { &GTK_CSS_VALUE_AREA, 1, 1, GTK_CSS_AREA_PADDING_BOX, "padding-box" },
+  { &GTK_CSS_VALUE_AREA, 1, 1, GTK_CSS_AREA_CONTENT_BOX, "content-box" }
 };
 
 GtkCssValue *
@@ -720,10 +720,10 @@ static const GtkCssValueClass GTK_CSS_VALUE_DIRECTION = {
 };
 
 static GtkCssValue direction_values[] = {
-  { &GTK_CSS_VALUE_DIRECTION, 1, GTK_CSS_DIRECTION_NORMAL, "normal" },
-  { &GTK_CSS_VALUE_DIRECTION, 1, GTK_CSS_DIRECTION_REVERSE, "reverse" },
-  { &GTK_CSS_VALUE_DIRECTION, 1, GTK_CSS_DIRECTION_ALTERNATE, "alternate" },
-  { &GTK_CSS_VALUE_DIRECTION, 1, GTK_CSS_DIRECTION_ALTERNATE_REVERSE, "alternate-reverse" }
+  { &GTK_CSS_VALUE_DIRECTION, 1, 1, GTK_CSS_DIRECTION_NORMAL, "normal" },
+  { &GTK_CSS_VALUE_DIRECTION, 1, 1, GTK_CSS_DIRECTION_REVERSE, "reverse" },
+  { &GTK_CSS_VALUE_DIRECTION, 1, 1, GTK_CSS_DIRECTION_ALTERNATE, "alternate" },
+  { &GTK_CSS_VALUE_DIRECTION, 1, 1, GTK_CSS_DIRECTION_ALTERNATE_REVERSE, "alternate-reverse" }
 };
 
 GtkCssValue *
@@ -781,8 +781,8 @@ static const GtkCssValueClass GTK_CSS_VALUE_PLAY_STATE = {
 };
 
 static GtkCssValue play_state_values[] = {
-  { &GTK_CSS_VALUE_PLAY_STATE, 1, GTK_CSS_PLAY_STATE_RUNNING, "running" },
-  { &GTK_CSS_VALUE_PLAY_STATE, 1, GTK_CSS_PLAY_STATE_PAUSED, "paused" }
+  { &GTK_CSS_VALUE_PLAY_STATE, 1, 1, GTK_CSS_PLAY_STATE_RUNNING, "running" },
+  { &GTK_CSS_VALUE_PLAY_STATE, 1, 1, GTK_CSS_PLAY_STATE_PAUSED, "paused" }
 };
 
 GtkCssValue *
@@ -837,10 +837,10 @@ static const GtkCssValueClass GTK_CSS_VALUE_FILL_MODE = {
 };
 
 static GtkCssValue fill_mode_values[] = {
-  { &GTK_CSS_VALUE_FILL_MODE, 1, GTK_CSS_FILL_NONE, "none" },
-  { &GTK_CSS_VALUE_FILL_MODE, 1, GTK_CSS_FILL_FORWARDS, "forwards" },
-  { &GTK_CSS_VALUE_FILL_MODE, 1, GTK_CSS_FILL_BACKWARDS, "backwards" },
-  { &GTK_CSS_VALUE_FILL_MODE, 1, GTK_CSS_FILL_BOTH, "both" }
+  { &GTK_CSS_VALUE_FILL_MODE, 1, 1, GTK_CSS_FILL_NONE, "none" },
+  { &GTK_CSS_VALUE_FILL_MODE, 1, 1, GTK_CSS_FILL_FORWARDS, "forwards" },
+  { &GTK_CSS_VALUE_FILL_MODE, 1, 1, GTK_CSS_FILL_BACKWARDS, "backwards" },
+  { &GTK_CSS_VALUE_FILL_MODE, 1, 1, GTK_CSS_FILL_BOTH, "both" }
 };
 
 GtkCssValue *
@@ -895,9 +895,9 @@ static const GtkCssValueClass GTK_CSS_VALUE_ICON_STYLE = {
 };
 
 static GtkCssValue icon_style_values[] = {
-  { &GTK_CSS_VALUE_ICON_STYLE, 1, GTK_CSS_ICON_STYLE_REQUESTED, "requested" },
-  { &GTK_CSS_VALUE_ICON_STYLE, 1, GTK_CSS_ICON_STYLE_REGULAR, "regular" },
-  { &GTK_CSS_VALUE_ICON_STYLE, 1, GTK_CSS_ICON_STYLE_SYMBOLIC, "symbolic" }
+  { &GTK_CSS_VALUE_ICON_STYLE, 1, 1, GTK_CSS_ICON_STYLE_REQUESTED, "requested" },
+  { &GTK_CSS_VALUE_ICON_STYLE, 1, 1, GTK_CSS_ICON_STYLE_REGULAR, "regular" },
+  { &GTK_CSS_VALUE_ICON_STYLE, 1, 1, GTK_CSS_ICON_STYLE_SYMBOLIC, "symbolic" }
 };
 
 GtkCssValue *
@@ -952,9 +952,9 @@ static const GtkCssValueClass GTK_CSS_VALUE_FONT_KERNING = {
 };
 
 static GtkCssValue font_kerning_values[] = {
-  { &GTK_CSS_VALUE_FONT_KERNING, 1, GTK_CSS_FONT_KERNING_AUTO, "auto" },
-  { &GTK_CSS_VALUE_FONT_KERNING, 1, GTK_CSS_FONT_KERNING_NORMAL, "normal" },
-  { &GTK_CSS_VALUE_FONT_KERNING, 1, GTK_CSS_FONT_KERNING_NONE, "none" }
+  { &GTK_CSS_VALUE_FONT_KERNING, 1, 1, GTK_CSS_FONT_KERNING_AUTO, "auto" },
+  { &GTK_CSS_VALUE_FONT_KERNING, 1, 1, GTK_CSS_FONT_KERNING_NORMAL, "normal" },
+  { &GTK_CSS_VALUE_FONT_KERNING, 1, 1, GTK_CSS_FONT_KERNING_NONE, "none" }
 };
 
 GtkCssValue *
@@ -1009,9 +1009,9 @@ static const GtkCssValueClass GTK_CSS_VALUE_FONT_VARIANT_POSITION = {
 };
 
 static GtkCssValue font_variant_position_values[] = {
-  { &GTK_CSS_VALUE_FONT_VARIANT_POSITION, 1, GTK_CSS_FONT_VARIANT_POSITION_NORMAL, "normal" },
-  { &GTK_CSS_VALUE_FONT_VARIANT_POSITION, 1, GTK_CSS_FONT_VARIANT_POSITION_SUB, "sub" },
-  { &GTK_CSS_VALUE_FONT_VARIANT_POSITION, 1, GTK_CSS_FONT_VARIANT_POSITION_SUPER, "super" }
+  { &GTK_CSS_VALUE_FONT_VARIANT_POSITION, 1, 1, GTK_CSS_FONT_VARIANT_POSITION_NORMAL, "normal" },
+  { &GTK_CSS_VALUE_FONT_VARIANT_POSITION, 1, 1, GTK_CSS_FONT_VARIANT_POSITION_SUB, "sub" },
+  { &GTK_CSS_VALUE_FONT_VARIANT_POSITION, 1, 1, GTK_CSS_FONT_VARIANT_POSITION_SUPER, "super" }
 };
 
 GtkCssValue *
@@ -1066,13 +1066,13 @@ static const GtkCssValueClass GTK_CSS_VALUE_FONT_VARIANT_CAPS = {
 };
 
 static GtkCssValue font_variant_caps_values[] = {
-  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, GTK_CSS_FONT_VARIANT_CAPS_NORMAL, "normal" },
-  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, GTK_CSS_FONT_VARIANT_CAPS_SMALL_CAPS, "small-caps" },
-  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, GTK_CSS_FONT_VARIANT_CAPS_ALL_SMALL_CAPS, "all-small-caps" },
-  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, GTK_CSS_FONT_VARIANT_CAPS_PETITE_CAPS, "petite-caps" },
-  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, GTK_CSS_FONT_VARIANT_CAPS_ALL_PETITE_CAPS, "all-petite-caps" },
-  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, GTK_CSS_FONT_VARIANT_CAPS_UNICASE, "unicase" },
-  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, GTK_CSS_FONT_VARIANT_CAPS_TITLING_CAPS, "titling-caps" }
+  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, 1, GTK_CSS_FONT_VARIANT_CAPS_NORMAL, "normal" },
+  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, 1, GTK_CSS_FONT_VARIANT_CAPS_SMALL_CAPS, "small-caps" },
+  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, 1, GTK_CSS_FONT_VARIANT_CAPS_ALL_SMALL_CAPS, "all-small-caps" },
+  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, 1, GTK_CSS_FONT_VARIANT_CAPS_PETITE_CAPS, "petite-caps" },
+  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, 1, GTK_CSS_FONT_VARIANT_CAPS_ALL_PETITE_CAPS, "all-petite-caps" },
+  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, 1, GTK_CSS_FONT_VARIANT_CAPS_UNICASE, "unicase" },
+  { &GTK_CSS_VALUE_FONT_VARIANT_CAPS, 1, 1, GTK_CSS_FONT_VARIANT_CAPS_TITLING_CAPS, "titling-caps" }
 };
 
 GtkCssValue *
@@ -1127,8 +1127,8 @@ static const GtkCssValueClass GTK_CSS_VALUE_FONT_VARIANT_ALTERNATE = {
 };
 
 static GtkCssValue font_variant_alternate_values[] = {
-  { &GTK_CSS_VALUE_FONT_VARIANT_ALTERNATE, 1, GTK_CSS_FONT_VARIANT_ALTERNATE_NORMAL, "normal" },
-  { &GTK_CSS_VALUE_FONT_VARIANT_ALTERNATE, 1, GTK_CSS_FONT_VARIANT_ALTERNATE_HISTORICAL_FORMS, "historical-forms" }
+  { &GTK_CSS_VALUE_FONT_VARIANT_ALTERNATE, 1, 1, GTK_CSS_FONT_VARIANT_ALTERNATE_NORMAL, "normal" },
+  { &GTK_CSS_VALUE_FONT_VARIANT_ALTERNATE, 1, 1, GTK_CSS_FONT_VARIANT_ALTERNATE_HISTORICAL_FORMS, "historical-forms" }
 };
 
 GtkCssValue *
diff --git a/gtk/gtkcssfiltervalue.c b/gtk/gtkcssfiltervalue.c
index b22d0e272c..95eb855cc4 100644
--- a/gtk/gtkcssfiltervalue.c
+++ b/gtk/gtkcssfiltervalue.c
@@ -703,7 +703,7 @@ static const GtkCssValueClass GTK_CSS_VALUE_FILTER = {
   gtk_css_value_filter_print
 };
 
-static GtkCssValue none_singleton = { &GTK_CSS_VALUE_FILTER, 1, 0, {  { GTK_CSS_FILTER_NONE } } };
+static GtkCssValue none_singleton = { &GTK_CSS_VALUE_FILTER, 1, 1, 0, {  { GTK_CSS_FILTER_NONE } } };
 
 static GtkCssValue *
 gtk_css_filter_value_alloc (guint n_filters)
@@ -778,6 +778,7 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
   GtkCssValue *value;
   GArray *array;
   guint i;
+  gboolean is_static = TRUE;
 
   if (gtk_css_parser_try_ident (parser, "none"))
     return gtk_css_filter_value_new_none ();
@@ -794,6 +795,7 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
             goto fail;
 
           filter.type = GTK_CSS_FILTER_BLUR;
+          is_static = is_static && filter.blur.value->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "brightness"))
         {
@@ -801,6 +803,7 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
             goto fail;
 
           filter.type = GTK_CSS_FILTER_BRIGHTNESS;
+          is_static = is_static && filter.brightness.value->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "contrast"))
         {
@@ -808,6 +811,7 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
             goto fail;
 
           filter.type = GTK_CSS_FILTER_CONTRAST;
+          is_static = is_static && filter.contrast.value->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "grayscale"))
         {
@@ -815,13 +819,15 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
             goto fail;
 
           filter.type = GTK_CSS_FILTER_GRAYSCALE;
+          is_static = is_static && filter.grayscale.value->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "hue-rotate"))
         {
-          if (!gtk_css_parser_consume_function (parser, 1, 1, gtk_css_filter_parse_angle, &filter.blur.value))
+          if (!gtk_css_parser_consume_function (parser, 1, 1, gtk_css_filter_parse_angle, &filter.hue_rotate.value))
             goto fail;
 
           filter.type = GTK_CSS_FILTER_HUE_ROTATE;
+          is_static = is_static && filter.hue_rotate.value->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "invert"))
         {
@@ -829,6 +835,7 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
             goto fail;
 
           filter.type = GTK_CSS_FILTER_INVERT;
+          is_static = is_static && filter.invert.value->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "opacity"))
         {
@@ -836,6 +843,7 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
             goto fail;
 
           filter.type = GTK_CSS_FILTER_OPACITY;
+          is_static = is_static && filter.opacity.value->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "saturate"))
         {
@@ -843,6 +851,7 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
             goto fail;
 
           filter.type = GTK_CSS_FILTER_SATURATE;
+          is_static = is_static && filter.saturate.value->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "sepia"))
         {
@@ -850,6 +859,7 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
             goto fail;
 
           filter.type = GTK_CSS_FILTER_SEPIA;
+          is_static = is_static && filter.sepia.value->is_static;
         }
       else
         {
@@ -866,6 +876,7 @@ gtk_css_filter_value_parse (GtkCssParser *parser)
     }
 
   value = gtk_css_filter_value_alloc (array->len);
+  value->is_static = is_static;
   memcpy (value->filters, array->data, sizeof (GtkCssFilter) * array->len);
 
   g_array_free (array, TRUE);
diff --git a/gtk/gtkcssiconthemevalue.c b/gtk/gtkcssiconthemevalue.c
index e3838f5201..c5015b7c0d 100644
--- a/gtk/gtkcssiconthemevalue.c
+++ b/gtk/gtkcssiconthemevalue.c
@@ -121,7 +121,7 @@ static const GtkCssValueClass GTK_CSS_VALUE_ICON_THEME = {
   gtk_css_value_icon_theme_print
 };
 
-static GtkCssValue default_icon_theme_value = { &GTK_CSS_VALUE_ICON_THEME, 1, NULL, 0 };
+static GtkCssValue default_icon_theme_value = { &GTK_CSS_VALUE_ICON_THEME, 1, 0, NULL, 0 };
 
 GtkCssValue *
 gtk_css_icon_theme_value_new (GtkIconTheme *icontheme)
diff --git a/gtk/gtkcssimagevalue.c b/gtk/gtkcssimagevalue.c
index 1a628a568f..65e3526a7f 100644
--- a/gtk/gtkcssimagevalue.c
+++ b/gtk/gtkcssimagevalue.c
@@ -136,7 +136,7 @@ static const GtkCssValueClass GTK_CSS_VALUE_IMAGE = {
 GtkCssValue *
 _gtk_css_image_value_new (GtkCssImage *image)
 {
-  static GtkCssValue none_singleton = { &GTK_CSS_VALUE_IMAGE, 1, NULL };
+  static GtkCssValue none_singleton = { &GTK_CSS_VALUE_IMAGE, 1, 1, NULL };
   GtkCssValue *value;
 
   if (image == NULL)
diff --git a/gtk/gtkcssnumbervalueprivate.h b/gtk/gtkcssnumbervalueprivate.h
index e18b69afcb..0257fd6db0 100644
--- a/gtk/gtkcssnumbervalueprivate.h
+++ b/gtk/gtkcssnumbervalueprivate.h
@@ -32,7 +32,8 @@ typedef enum /*< skip >*/ {
   GTK_CSS_PARSE_NUMBER = (1 << 2),
   GTK_CSS_PARSE_LENGTH = (1 << 3),
   GTK_CSS_PARSE_ANGLE = (1 << 4),
-  GTK_CSS_PARSE_TIME = (1 << 5)
+  GTK_CSS_PARSE_TIME = (1 << 5),
+  GTK_CSS_PARSE_NON_STATIC = (1 << 6)
 } GtkCssNumberParseFlags;
 
 typedef struct _GtkCssNumberValueClass GtkCssNumberValueClass;
diff --git a/gtk/gtkcsspositionvalue.c b/gtk/gtkcsspositionvalue.c
index 853158a056..001f7e3526 100644
--- a/gtk/gtkcsspositionvalue.c
+++ b/gtk/gtkcsspositionvalue.c
@@ -167,6 +167,7 @@ _gtk_css_position_value_new (GtkCssValue *x,
   GtkCssValue *result;
 
   result = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_POSITION);
+  result->is_static = x->is_static && y->is_static;
   result->x = x;
   result->y = y;
 
diff --git a/gtk/gtkcssrgbavalue.c b/gtk/gtkcssrgbavalue.c
index a45709ad8f..f562e5f484 100644
--- a/gtk/gtkcssrgbavalue.c
+++ b/gtk/gtkcssrgbavalue.c
@@ -108,10 +108,10 @@ static const GtkCssValueClass GTK_CSS_VALUE_RGBA = {
   gtk_css_value_rgba_print
 };
 
-static GtkCssValue transparent_black_singleton = { &GTK_CSS_VALUE_RGBA, 1, { 0, 0, 0, 0 }};
-static GtkCssValue transparent_white_singleton = { &GTK_CSS_VALUE_RGBA, 1, { 1, 1, 1, 0 }};
-static GtkCssValue opaque_black_singleton      = { &GTK_CSS_VALUE_RGBA, 1, { 0, 0, 0, 1 }};
-static GtkCssValue opaque_white_singleton      = { &GTK_CSS_VALUE_RGBA, 1, { 1, 1, 1, 1 }};
+static GtkCssValue transparent_black_singleton = { &GTK_CSS_VALUE_RGBA, 1, 1, { 0, 0, 0, 0 }};
+static GtkCssValue transparent_white_singleton = { &GTK_CSS_VALUE_RGBA, 1, 1, { 1, 1, 1, 0 }};
+static GtkCssValue opaque_black_singleton      = { &GTK_CSS_VALUE_RGBA, 1, 1, { 0, 0, 0, 1 }};
+static GtkCssValue opaque_white_singleton      = { &GTK_CSS_VALUE_RGBA, 1, 1, { 1, 1, 1, 1 }};
 
 GtkCssValue *
 _gtk_css_rgba_value_new_from_rgba (const GdkRGBA *rgba)
diff --git a/gtk/gtkcssshadowsvalue.c b/gtk/gtkcssshadowsvalue.c
index 2e09dae683..97fdf1cf95 100644
--- a/gtk/gtkcssshadowsvalue.c
+++ b/gtk/gtkcssshadowsvalue.c
@@ -210,7 +210,7 @@ static const GtkCssValueClass GTK_CSS_VALUE_SHADOWS = {
   gtk_css_value_shadows_print
 };
 
-static GtkCssValue none_singleton = { &GTK_CSS_VALUE_SHADOWS, 1, 0, { NULL } };
+static GtkCssValue none_singleton = { &GTK_CSS_VALUE_SHADOWS, 1, 1, 0, { NULL } };
 
 GtkCssValue *
 _gtk_css_shadows_value_new_none (void)
@@ -223,6 +223,8 @@ gtk_css_shadows_value_new (GtkCssValue **values,
                            guint         len)
 {
   GtkCssValue *result;
+  gboolean is_static;
+  int i;
 
   g_return_val_if_fail (values != NULL, NULL);
   g_return_val_if_fail (len > 0, NULL);
@@ -230,7 +232,18 @@ gtk_css_shadows_value_new (GtkCssValue **values,
   if (len == 1)
     return values[0];
 
+  is_static = TRUE;
+  for (i = 0; i < len; i++)
+    {
+      if (!values[i]->is_static)
+        {
+          is_static = FALSE;
+          break;
+        }
+    }
+
   result = _gtk_css_value_alloc (&GTK_CSS_VALUE_SHADOWS, sizeof (GtkCssValue) + sizeof (GtkCssValue *) * (len - 1));
+  result->is_static = is_static;
   result->len = len;
   memcpy (&result->values[0], values, sizeof (GtkCssValue *) * len);
 
diff --git a/gtk/gtkcssshadowvalue.c b/gtk/gtkcssshadowvalue.c
index 5f939ef99b..1bc478efea 100644
--- a/gtk/gtkcssshadowvalue.c
+++ b/gtk/gtkcssshadowvalue.c
@@ -177,6 +177,12 @@ gtk_css_shadow_value_new (GtkCssValue *hoffset,
 
   retval = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_SHADOW);
 
+  retval->is_static = 
+     hoffset->is_static &&
+     voffset->is_static &&
+     radius->is_static &&
+     color->is_static;
+
   retval->hoffset = hoffset;
   retval->voffset = voffset;
   retval->radius = radius;
diff --git a/gtk/gtkcssstringvalue.c b/gtk/gtkcssstringvalue.c
index 286b86e0d9..e5c74136b7 100644
--- a/gtk/gtkcssstringvalue.c
+++ b/gtk/gtkcssstringvalue.c
@@ -150,6 +150,7 @@ _gtk_css_string_value_new_take (char *string)
   GtkCssValue *result;
 
   result = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_STRING);
+  result->is_static = TRUE;
   result->string = string;
 
   return result;
@@ -190,6 +191,7 @@ _gtk_css_ident_value_new_take (char *ident)
   GtkCssValue *result;
 
   result = _gtk_css_value_new (GtkCssValue, &GTK_CSS_VALUE_IDENT);
+  result->is_static = TRUE;
   result->string = ident;
 
   return result;
diff --git a/gtk/gtkcssstylepropertyimpl.c b/gtk/gtkcssstylepropertyimpl.c
index 84c6d7c75c..3ecac362d8 100644
--- a/gtk/gtkcssstylepropertyimpl.c
+++ b/gtk/gtkcssstylepropertyimpl.c
@@ -868,7 +868,8 @@ parse_border_width (GtkCssStyleProperty *property,
 {
   return _gtk_css_number_value_parse (parser,
                                       GTK_CSS_POSITIVE_ONLY
-                                      | GTK_CSS_PARSE_LENGTH);
+                                      | GTK_CSS_PARSE_LENGTH
+                                      | GTK_CSS_PARSE_NON_STATIC);
 }
 
 static GtkCssValue *
diff --git a/gtk/gtkcsstransformvalue.c b/gtk/gtkcsstransformvalue.c
index 5285d7104b..99030aff74 100644
--- a/gtk/gtkcsstransformvalue.c
+++ b/gtk/gtkcsstransformvalue.c
@@ -590,6 +590,7 @@ gtk_css_value_transform_transition (GtkCssValue *start,
     }
 
   result = gtk_css_transform_value_alloc (MAX (start->n_transforms, end->n_transforms));
+  result->is_static = start->is_static && end->is_static;
 
   for (i = 0; i < n; i++)
     {
@@ -800,7 +801,7 @@ static const GtkCssValueClass GTK_CSS_VALUE_TRANSFORM = {
   gtk_css_value_transform_print
 };
 
-static GtkCssValue none_singleton = { &GTK_CSS_VALUE_TRANSFORM, 1, 0, {  { GTK_CSS_TRANSFORM_NONE } } };
+static GtkCssValue none_singleton = { &GTK_CSS_VALUE_TRANSFORM, 1, 1, 0, {  { GTK_CSS_TRANSFORM_NONE } } };
 
 static GtkCssValue *
 gtk_css_transform_value_alloc (guint n_transforms)
@@ -931,6 +932,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
   GtkCssValue *value;
   GArray *array;
   guint i;
+  gboolean is_static = TRUE;
 
   if (gtk_css_parser_try_ident (parser, "none"))
     return _gtk_css_transform_value_new_none ();
@@ -967,6 +969,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
             goto fail;
 
           transform.type = GTK_CSS_TRANSFORM_PERSPECTIVE;
+          is_static = is_static && transform.perspective.depth->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "rotate") ||
                gtk_css_parser_has_function (parser, "rotateZ"))
@@ -978,6 +981,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.rotate.x = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
           transform.rotate.y = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
           transform.rotate.z = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
+          is_static = is_static && transform.rotate.angle->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "rotate3d"))
         {
@@ -991,6 +995,10 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
             }
 
           transform.type = GTK_CSS_TRANSFORM_ROTATE;
+          is_static = is_static && transform.rotate.angle->is_static &&
+                                   transform.rotate.x->is_static &&
+                                   transform.rotate.y->is_static &&
+                                   transform.rotate.z->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "rotateX"))
         {
@@ -1001,6 +1009,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.rotate.x = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
           transform.rotate.y = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
           transform.rotate.z = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
+          is_static = is_static && transform.rotate.angle->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "rotateY"))
         {
@@ -1011,6 +1020,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.rotate.x = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
           transform.rotate.y = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
           transform.rotate.z = _gtk_css_number_value_new (0, GTK_CSS_NUMBER);
+          is_static = is_static && transform.rotate.angle->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "scale"))
         {
@@ -1030,6 +1040,8 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           else
             transform.scale.y = gtk_css_value_ref (values[0]);
           transform.scale.z = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
+          is_static = is_static && transform.scale.x->is_static &&
+                                   transform.scale.y->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "scale3d"))
         {
@@ -1047,6 +1059,9 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.scale.x = values[0];
           transform.scale.y = values[1];
           transform.scale.z = values[2];
+          is_static = is_static && transform.scale.x->is_static &&
+                                   transform.scale.y->is_static &&
+                                   transform.scale.z->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "scaleX"))
         {
@@ -1056,6 +1071,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.type = GTK_CSS_TRANSFORM_SCALE;
           transform.scale.y = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
           transform.scale.z = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
+          is_static = is_static && transform.scale.x->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "scaleY"))
         {
@@ -1065,6 +1081,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.type = GTK_CSS_TRANSFORM_SCALE;
           transform.scale.x = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
           transform.scale.z = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
+          is_static = is_static && transform.scale.y->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "scaleZ"))
         {
@@ -1074,6 +1091,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.type = GTK_CSS_TRANSFORM_SCALE;
           transform.scale.x = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
           transform.scale.y = _gtk_css_number_value_new (1, GTK_CSS_NUMBER);
+          is_static = is_static && transform.scale.z->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "skew"))
         {
@@ -1089,6 +1107,8 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.type = GTK_CSS_TRANSFORM_SKEW;
           transform.skew.x = values[0];
           transform.skew.y = values[1];
+          is_static = is_static && transform.skew.x->is_static &&
+                                   transform.skew.y->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "skewX"))
         {
@@ -1096,6 +1116,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
             goto fail;
 
           transform.type = GTK_CSS_TRANSFORM_SKEW_X;
+          is_static = is_static && transform.skew_x.skew->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "skewY"))
         {
@@ -1103,6 +1124,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
             goto fail;
 
           transform.type = GTK_CSS_TRANSFORM_SKEW_Y;
+          is_static = is_static && transform.skew_y.skew->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "translate"))
         {
@@ -1122,6 +1144,8 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           else
             transform.translate.y = _gtk_css_number_value_new (0, GTK_CSS_PX);
           transform.translate.z = _gtk_css_number_value_new (0, GTK_CSS_PX);
+          is_static = is_static && transform.translate.x->is_static &&
+                                   transform.translate.y->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "translate3d"))
         {
@@ -1139,6 +1163,9 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.translate.x = values[0];
           transform.translate.y = values[1];
           transform.translate.z = values[2];
+          is_static = is_static && transform.translate.x->is_static &&
+                                   transform.translate.y->is_static &&
+                                   transform.translate.z->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "translateX"))
         {
@@ -1148,6 +1175,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.type = GTK_CSS_TRANSFORM_TRANSLATE;
           transform.translate.y = _gtk_css_number_value_new (0, GTK_CSS_PX);
           transform.translate.z = _gtk_css_number_value_new (0, GTK_CSS_PX);
+          is_static = is_static && transform.translate.x->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "translateY"))
         {
@@ -1157,6 +1185,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.type = GTK_CSS_TRANSFORM_TRANSLATE;
           transform.translate.x = _gtk_css_number_value_new (0, GTK_CSS_PX);
           transform.translate.z = _gtk_css_number_value_new (0, GTK_CSS_PX);
+          is_static = is_static && transform.translate.y->is_static;
         }
       else if (gtk_css_parser_has_function (parser, "translateZ"))
         {
@@ -1166,6 +1195,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
           transform.type = GTK_CSS_TRANSFORM_TRANSLATE;
           transform.translate.x = _gtk_css_number_value_new (0, GTK_CSS_PX);
           transform.translate.y = _gtk_css_number_value_new (0, GTK_CSS_PX);
+          is_static = is_static && transform.translate.z->is_static;
         }
       else
         {
@@ -1182,6 +1212,7 @@ _gtk_css_transform_value_parse (GtkCssParser *parser)
     }
 
   value = gtk_css_transform_value_alloc (array->len);
+  value->is_static = is_static;
   memcpy (value->transforms, array->data, sizeof (GtkCssTransform) * array->len);
 
   g_array_free (array, TRUE);
diff --git a/gtk/gtkcssvalue.c b/gtk/gtkcssvalue.c
index 63a23b0f6c..c925668657 100644
--- a/gtk/gtkcssvalue.c
+++ b/gtk/gtkcssvalue.c
@@ -80,6 +80,7 @@ _gtk_css_value_alloc (const GtkCssValueClass *klass,
 
   value->class = klass;
   value->ref_count = 1;
+  value->is_static = FALSE;
 
   count_value (klass->type_name, 1);
 
@@ -133,7 +134,10 @@ _gtk_css_value_compute (GtkCssValue      *value,
                         GtkCssStyle      *style,
                         GtkCssStyle      *parent_style)
 {
-  return value->class->compute (value, property_id, provider, style, parent_style);
+  if (value->is_static)
+    return _gtk_css_value_ref (value);
+  else
+    return value->class->compute (value, property_id, provider, style, parent_style);
 }
 
 gboolean
diff --git a/gtk/gtkcssvalueprivate.h b/gtk/gtkcssvalueprivate.h
index 3071d2bd17..060a03a4e5 100644
--- a/gtk/gtkcssvalueprivate.h
+++ b/gtk/gtkcssvalueprivate.h
@@ -37,7 +37,8 @@ typedef struct _GtkCssValueClass      GtkCssValueClass;
 /* using define instead of struct here so compilers get the packing right */
 #define GTK_CSS_VALUE_BASE \
   const GtkCssValueClass *class; \
-  gint ref_count;
+  gint ref_count; \
+  gboolean is_static;
 
 struct _GtkCssValueClass {
   const char *type_name;