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css: Implement animations for font-weight property

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This commit is contained in:
Benjamin Otte 2015-02-15 05:37:19 +01:00
parent 0c4a42e629
commit 295b8aab0c
2 changed files with 18 additions and 2 deletions
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18
gtk/gtkcssenumvalue.c
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@ -419,11 +419,27 @@ gtk_css_value_font_weight_compute (GtkCssValue *value,
return _gtk_css_font_weight_value_new (new_weight);
}
static GtkCssValue *
gtk_css_value_font_weight_transition (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress)
{
PangoWeight new_weight;
if (start->value < 0 || end->value < 0)
return NULL;
new_weight = (start->value + end->value + 50) / 200 * 100;
return _gtk_css_font_weight_value_new (new_weight);
}
static const GtkCssValueClass GTK_CSS_VALUE_FONT_WEIGHT = {
gtk_css_value_enum_free,
gtk_css_value_font_weight_compute,
gtk_css_value_enum_equal,
gtk_css_value_enum_transition,
gtk_css_value_font_weight_transition,
gtk_css_value_enum_print
};

2
gtk/gtkcssstylepropertyimpl.c
View File

@ -1049,7 +1049,7 @@ _gtk_css_style_property_init_properties (void)
gtk_css_style_property_register ("font-weight",
GTK_CSS_PROPERTY_FONT_WEIGHT,
PANGO_TYPE_WEIGHT,
GTK_STYLE_PROPERTY_INHERIT,
GTK_STYLE_PROPERTY_INHERIT | GTK_STYLE_PROPERTY_ANIMATED,
GTK_CSS_AFFECTS_FONT | GTK_CSS_AFFECTS_TEXT,
parse_pango_weight,
query_pango_weight,