csscolorvalue: return the initial color value directly

This commit is contained in:
Timm Bäder 2019-08-23 09:07:29 +02:00
parent df2d43c893
commit e0cf6e4775

View File

@ -129,139 +129,6 @@ gtk_css_value_color_get_fallback (guint property_id,
} }
} }
GtkCssValue *
_gtk_css_color_value_resolve (GtkCssValue *color,
GtkStyleProvider *provider,
GtkCssValue *current,
GSList *cycle_list)
{
GtkCssValue *value;
gtk_internal_return_val_if_fail (color != NULL, NULL);
switch (color->type)
{
case COLOR_TYPE_LITERAL:
return _gtk_css_value_ref (color->last_value);
case COLOR_TYPE_NAME:
{
GtkCssValue *named;
GSList cycle = { color, cycle_list };
/* If color exists in cycle_list, we're currently resolving it.
* So we've detected a cycle. */
if (g_slist_find (cycle_list, color))
return NULL;
named = gtk_style_provider_get_color (provider, color->sym_col.name);
if (named == NULL)
return NULL;
value = _gtk_css_color_value_resolve (named, provider, current, &cycle);
if (value == NULL)
return NULL;
}
break;
case COLOR_TYPE_SHADE:
{
GtkCssValue *val;
GtkHSLA hsla;
GdkRGBA shade;
val = _gtk_css_color_value_resolve (color->sym_col.shade.color, provider, current, cycle_list);
if (val == NULL)
return NULL;
_gtk_hsla_init_from_rgba (&hsla, _gtk_css_rgba_value_get_rgba (val));
_gtk_hsla_shade (&hsla, &hsla, color->sym_col.shade.factor);
_gdk_rgba_init_from_hsla (&shade, &hsla);
_gtk_css_value_unref (val);
value = _gtk_css_rgba_value_new_from_rgba (&shade);
}
break;
case COLOR_TYPE_ALPHA:
{
GtkCssValue *val;
GdkRGBA alpha;
val = _gtk_css_color_value_resolve (color->sym_col.alpha.color, provider, current, cycle_list);
if (val == NULL)
return NULL;
alpha = *_gtk_css_rgba_value_get_rgba (val);
alpha.alpha = CLAMP (alpha.alpha * color->sym_col.alpha.factor, 0, 1);
_gtk_css_value_unref (val);
value = _gtk_css_rgba_value_new_from_rgba (&alpha);
}
break;
case COLOR_TYPE_MIX:
{
GtkCssValue *val;
GdkRGBA color1, color2, res;
val = _gtk_css_color_value_resolve (color->sym_col.mix.color1, provider, current, cycle_list);
if (val == NULL)
return NULL;
color1 = *_gtk_css_rgba_value_get_rgba (val);
_gtk_css_value_unref (val);
val = _gtk_css_color_value_resolve (color->sym_col.mix.color2, provider, current, cycle_list);
if (val == NULL)
return NULL;
color2 = *_gtk_css_rgba_value_get_rgba (val);
_gtk_css_value_unref (val);
res.red = CLAMP (color1.red + ((color2.red - color1.red) * color->sym_col.mix.factor), 0, 1);
res.green = CLAMP (color1.green + ((color2.green - color1.green) * color->sym_col.mix.factor), 0, 1);
res.blue = CLAMP (color1.blue + ((color2.blue - color1.blue) * color->sym_col.mix.factor), 0, 1);
res.alpha = CLAMP (color1.alpha + ((color2.alpha - color1.alpha) * color->sym_col.mix.factor), 0, 1);
value =_gtk_css_rgba_value_new_from_rgba (&res);
}
break;
case COLOR_TYPE_CURRENT_COLOR:
if (current)
{
return _gtk_css_value_ref (current);
}
else
{
return _gtk_css_color_value_resolve (_gtk_css_style_property_get_initial_value (_gtk_css_style_property_lookup_by_id (GTK_CSS_PROPERTY_COLOR)),
provider,
NULL,
cycle_list);
}
break;
default:
value = NULL;
g_assert_not_reached ();
}
if (color->last_value != NULL &&
_gtk_css_value_equal (color->last_value, value))
{
_gtk_css_value_unref (value);
value = _gtk_css_value_ref (color->last_value);
}
else
{
if (color->last_value != NULL)
_gtk_css_value_unref (color->last_value);
color->last_value = _gtk_css_value_ref (value);
}
return value;
}
static GtkCssValue * static GtkCssValue *
gtk_css_value_color_compute (GtkCssValue *value, gtk_css_value_color_compute (GtkCssValue *value,
guint property_id, guint property_id,
@ -411,6 +278,148 @@ static const GtkCssValueClass GTK_CSS_VALUE_COLOR = {
gtk_css_value_color_print gtk_css_value_color_print
}; };
GtkCssValue *
_gtk_css_color_value_resolve (GtkCssValue *color,
GtkStyleProvider *provider,
GtkCssValue *current,
GSList *cycle_list)
{
GtkCssValue *value;
gtk_internal_return_val_if_fail (color != NULL, NULL);
switch (color->type)
{
case COLOR_TYPE_LITERAL:
return _gtk_css_value_ref (color->last_value);
case COLOR_TYPE_NAME:
{
GtkCssValue *named;
GSList cycle = { color, cycle_list };
/* If color exists in cycle_list, we're currently resolving it.
* So we've detected a cycle. */
if (g_slist_find (cycle_list, color))
return NULL;
named = gtk_style_provider_get_color (provider, color->sym_col.name);
if (named == NULL)
return NULL;
value = _gtk_css_color_value_resolve (named, provider, current, &cycle);
if (value == NULL)
return NULL;
}
break;
case COLOR_TYPE_SHADE:
{
GtkCssValue *val;
GtkHSLA hsla;
GdkRGBA shade;
val = _gtk_css_color_value_resolve (color->sym_col.shade.color, provider, current, cycle_list);
if (val == NULL)
return NULL;
_gtk_hsla_init_from_rgba (&hsla, _gtk_css_rgba_value_get_rgba (val));
_gtk_hsla_shade (&hsla, &hsla, color->sym_col.shade.factor);
_gdk_rgba_init_from_hsla (&shade, &hsla);
_gtk_css_value_unref (val);
value = _gtk_css_rgba_value_new_from_rgba (&shade);
}
break;
case COLOR_TYPE_ALPHA:
{
GtkCssValue *val;
GdkRGBA alpha;
val = _gtk_css_color_value_resolve (color->sym_col.alpha.color, provider, current, cycle_list);
if (val == NULL)
return NULL;
alpha = *_gtk_css_rgba_value_get_rgba (val);
alpha.alpha = CLAMP (alpha.alpha * color->sym_col.alpha.factor, 0, 1);
_gtk_css_value_unref (val);
value = _gtk_css_rgba_value_new_from_rgba (&alpha);
}
break;
case COLOR_TYPE_MIX:
{
GtkCssValue *val;
GdkRGBA color1, color2, res;
val = _gtk_css_color_value_resolve (color->sym_col.mix.color1, provider, current, cycle_list);
if (val == NULL)
return NULL;
color1 = *_gtk_css_rgba_value_get_rgba (val);
_gtk_css_value_unref (val);
val = _gtk_css_color_value_resolve (color->sym_col.mix.color2, provider, current, cycle_list);
if (val == NULL)
return NULL;
color2 = *_gtk_css_rgba_value_get_rgba (val);
_gtk_css_value_unref (val);
res.red = CLAMP (color1.red + ((color2.red - color1.red) * color->sym_col.mix.factor), 0, 1);
res.green = CLAMP (color1.green + ((color2.green - color1.green) * color->sym_col.mix.factor), 0, 1);
res.blue = CLAMP (color1.blue + ((color2.blue - color1.blue) * color->sym_col.mix.factor), 0, 1);
res.alpha = CLAMP (color1.alpha + ((color2.alpha - color1.alpha) * color->sym_col.mix.factor), 0, 1);
value =_gtk_css_rgba_value_new_from_rgba (&res);
}
break;
case COLOR_TYPE_CURRENT_COLOR:
if (current)
{
return _gtk_css_value_ref (current);
}
else
{
GtkCssValue *initial = _gtk_css_style_property_get_initial_value (_gtk_css_style_property_lookup_by_id (GTK_CSS_PROPERTY_COLOR));
if (initial->class == &GTK_CSS_VALUE_COLOR)
{
return _gtk_css_color_value_resolve (initial,
provider,
NULL,
cycle_list);
}
else
{
return _gtk_css_value_ref (initial);
}
}
break;
default:
value = NULL;
g_assert_not_reached ();
}
if (color->last_value != NULL &&
_gtk_css_value_equal (color->last_value, value))
{
_gtk_css_value_unref (value);
value = _gtk_css_value_ref (color->last_value);
}
else
{
if (color->last_value != NULL)
_gtk_css_value_unref (color->last_value);
color->last_value = _gtk_css_value_ref (value);
}
return value;
}
GtkCssValue * GtkCssValue *
_gtk_css_color_value_new_literal (const GdkRGBA *color) _gtk_css_color_value_new_literal (const GdkRGBA *color)
{ {