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css: Add _gtk_css_style_property_get_mask_affecting()

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Computes a bitmask for all properties that affect the given flags.
This commit is contained in:
Benjamin Otte 2015-01-27 04:47:55 +01:00
parent ffff7b055b
commit c42e54e949
2 changed files with 31 additions and 0 deletions
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29
gtk/gtkcssstyleproperty.c
View File

@ -406,6 +406,35 @@ _gtk_css_style_property_get_initial_value (GtkCssStyleProperty *property)
return property->initial_value;
}
/**
* _gtk_css_style_property_get_mask_affecting:
* @flags: the flags that are affected
*
* Computes a bitmask for all properties that have at least one of @flags
* set.
*
* Returns: (transfer: full): A #GtkBitmask with the bit set for every
* property that has at least one of @flags set.
*/
GtkBitmask *
_gtk_css_style_property_get_mask_affecting (GtkCssAffects affects)
{
GtkBitmask *result;
guint i;
result = _gtk_bitmask_new ();
for (i = 0; i < _gtk_css_style_property_get_n_properties (); i++)
{
GtkCssStyleProperty *prop = _gtk_css_style_property_lookup_by_id (i);
if (_gtk_css_style_property_get_affects (prop) & affects)
result = _gtk_bitmask_set (result, i, TRUE);
}
return result;
}
gboolean
_gtk_css_style_property_changes_affect_size (const GtkBitmask *changes)
{

2
gtk/gtkcssstylepropertyprivate.h
View File

@ -83,6 +83,8 @@ void _gtk_css_style_property_print_value (GtkCssStyleProp
GtkCssValue *value,
GString *string);
GtkBitmask * _gtk_css_style_property_get_mask_affecting
(GtkCssAffects affects);
gboolean _gtk_css_style_property_changes_affect_size
(const GtkBitmask *changes);
gboolean _gtk_css_style_property_changes_affect_font