static void
gtk_css_computed_values_create_css_transitions (GtkCssComputedValues *values,
gint64 timestamp,
GtkCssComputedValues *source)
{
TransitionInfo transitions[GTK_CSS_PROPERTY_N_PROPERTIES] = { { 0, } };
GtkCssValue *durations, *delays, *timing_functions;
guint i;
transition_infos_set (transitions, _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_TRANSITION_PROPERTY));
durations = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_TRANSITION_DURATION);
delays = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_TRANSITION_DELAY);
timing_functions = _gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_TRANSITION_TIMING_FUNCTION);
for (i = 0; i < GTK_CSS_PROPERTY_N_PROPERTIES; i++)
{
GtkStyleAnimation *animation;
GtkCssValue *start, *end;
double duration, delay;
if (!transitions[i].pending)
continue;
duration = _gtk_css_number_value_get (_gtk_css_array_value_get_nth (durations, transitions[i].index), 100);
delay = _gtk_css_number_value_get (_gtk_css_array_value_get_nth (delays, transitions[i].index), 100);
if (duration + delay == 0.0)
continue;
start = _gtk_css_computed_values_get_intrinsic_value (source, i);
end = _gtk_css_computed_values_get_intrinsic_value (values, i);
if (_gtk_css_value_equal (start, end))
{
animation = gtk_css_computed_values_find_transition (GTK_CSS_COMPUTED_VALUES (source), i);
if (animation)
values->animations = g_slist_prepend (values->animations, g_object_ref (animation));
}
else
{
animation = _gtk_css_transition_new (i,
_gtk_css_computed_values_get_value (source, i),
_gtk_css_array_value_get_nth (timing_functions, i),
timestamp + delay * G_USEC_PER_SEC,
timestamp + (delay + duration) * G_USEC_PER_SEC);
values->animations = g_slist_prepend (values->animations, animation);
}
}
}
static void
gtk_css_animation_set_values (GtkStyleAnimation *style_animation,
gint64 for_time_us,
GtkCssComputedValues *values)
{
GtkCssAnimation *animation = GTK_CSS_ANIMATION (style_animation);
double iteration, progress;
guint i;
iteration = gtk_css_animation_get_iteration (animation, for_time_us);
if (!gtk_css_animation_is_executing_at_iteration (animation, iteration))
return;
progress = gtk_css_animation_get_progress_from_iteration (animation, iteration);
progress = _gtk_css_ease_value_transform (animation->ease, progress);
for (i = 0; i < _gtk_css_keyframes_get_n_properties (animation->keyframes); i++)
{
GtkCssValue *value;
guint property_id;
property_id = _gtk_css_keyframes_get_property_id (animation->keyframes, i);
value = _gtk_css_keyframes_get_value (animation->keyframes,
i,
progress,
_gtk_css_computed_values_get_intrinsic_value (values, property_id));
_gtk_css_computed_values_set_animated_value (values, property_id, value);
_gtk_css_value_unref (value);
}
}
GtkCssValue *
_gtk_css_computed_values_get_value (GtkCssComputedValues *values,
guint id)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_COMPUTED_VALUES (values), NULL);
if (values->animated_values &&
id < values->animated_values->len &&
g_ptr_array_index (values->animated_values, id))
return g_ptr_array_index (values->animated_values, id);
return _gtk_css_computed_values_get_intrinsic_value (values, id);
}
