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); } }
static GtkBitmask * gtk_css_transition_set_values (GtkStyleAnimation *animation, GtkBitmask *changed, gint64 for_time_us, GtkCssComputedValues *values) { GtkCssTransition *transition = GTK_CSS_TRANSITION (animation); GtkCssValue *value; double progress; if (transition->start_time >= for_time_us) value = _gtk_css_value_ref (transition->start); else if (transition->end_time <= for_time_us) value = _gtk_css_value_ref (transition->end); else { progress = (double) (for_time_us - transition->start_time) / (transition->end_time - transition->start_time); progress = _gtk_css_ease_value_transform (transition->ease, progress); value = _gtk_css_value_transition (transition->start, transition->end, progress); if (value == NULL) value = _gtk_css_value_ref (transition->end); } _gtk_css_computed_values_set_value (values, transition->property, value, NULL); _gtk_css_value_unref (value); return _gtk_bitmask_set (changed, transition->property, TRUE); }