C++ (Cpp) property_animation_from Examples

Example #1

File: weather_app_animations.c Project: Drusy/cards-example

void property_animation_update_animated_numbers(PropertyAnimation *property_animation, const uint32_t distance_normalized) {
  WeatherDataViewNumbers from, to;
  property_animation_from(property_animation, &from, sizeof(from), false);
  property_animation_to(property_animation, &to, sizeof(to), false);

  WeatherDataViewNumbers current = (WeatherDataViewNumbers) {
    .temperature = distance_interpolate(distance_normalized, from.temperature, to.temperature),
    .high = distance_interpolate(distance_normalized, from.high, to.high),
    .low = distance_interpolate(distance_normalized, from.low, to.low),
  };
  PropertyAnimationImplementation *impl = (PropertyAnimationImplementation *) animation_get_implementation((Animation *) property_animation);
  WeatherDataAnimatedNumbersSetter setter = (WeatherDataAnimatedNumbersSetter)impl->accessors.setter.grect;

  void *subject;
  if (property_animation_get_subject(property_animation, &subject) && subject) {
    setter(subject, current);
  }
}

static const PropertyAnimationImplementation s_animated_numbers_implementation = {
  .base = {
    .update = (AnimationUpdateImplementation) property_animation_update_animated_numbers,
  },
  .accessors = {
    .setter = { .grect = (const GRectSetter) set_animated_numbers, },
    .getter = { .grect = (const GRectGetter) get_animated_numbers, },
  },

Example #2

File: activity-indicator-layer.c Project: a2/pebble-activity-indicator-layer

static Animation *activity_indicator_layer_create_animation(Layer *layer) {
  Animation *animations[3];
  const uint32_t duration = 1000;
  uint32_t from = 0, to = TRIG_MAX_ANGLE;

  animations[0] = ({
    PropertyAnimation *property_animation = property_animation_create(&property_animation_implementation_stroke_start, layer, NULL, NULL);
    property_animation_from(property_animation, &from, sizeof(from), true);
    property_animation_to(property_animation, &to, sizeof(to), true);

    Animation *animation = (Animation *)property_animation;
    animation_set_custom_curve(animation, stroke_start_custom_curve);
    animation_set_delay(animation, duration * 2 / 3);
    animation_set_duration(animation, duration);
    animation_set_play_count(animation, ANIMATION_PLAY_COUNT_INFINITE);

    animation;
  });