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use scene::ElementAnimations;
use time::MediaTime;
use crate::resolve::resolve_animation_path_value_at_time;
use scene::ParamValue;
pub fn resolve_opacity_at_time(
base_opacity: f64,
animations: Option<&ElementAnimations>,
local_time: MediaTime,
) -> f64 {
match resolve_animation_path_value_at_time(
animations,
"opacity",
local_time.max(MediaTime::ZERO),
&ParamValue::Number(base_opacity),
) {
ParamValue::Number(value) => value,
_ => base_opacity,
}
}
pub fn resolve_number_at_time(
base_value: f64,
animations: Option<&ElementAnimations>,
property_path: &str,
local_time: MediaTime,
) -> f64 {
match resolve_animation_path_value_at_time(
animations,
property_path,
local_time.max(MediaTime::ZERO),
&ParamValue::Number(base_value),
) {
ParamValue::Number(value) => value,
_ => base_value,
}
}
pub fn resolve_color_at_time(
base_color: &str,
animations: Option<&ElementAnimations>,
property_path: &str,
local_time: MediaTime,
) -> String {
match resolve_animation_path_value_at_time(
animations,
property_path,
local_time.max(MediaTime::ZERO),
&ParamValue::String(base_color.to_string()),
) {
ParamValue::String(value) => value,
_ => base_color.to_string(),
}
}
#[cfg(test)]
mod tests {
use super::*;
use scene::{AnimationChannel, ChannelData, ScalarAnimationKey, ScalarChannel, ScalarSegmentType, TangentMode};
use std::collections::BTreeMap;
#[test]
fn resolves_opacity_with_animation_and_fallback() {
let channel = AnimationChannel::Scalar(ScalarChannel {
keys: vec![ScalarAnimationKey {
id: "a".to_string(),
time: MediaTime::from_ticks(0),
value: 0.25,
left_handle: None,
right_handle: None,
segment_to_next: ScalarSegmentType::Linear,
tangent_mode: TangentMode::Flat,
}],
extrapolation: None,
});
let mut animations: ElementAnimations = BTreeMap::new();
animations.insert("opacity".to_string(), ChannelData::Single(channel));
assert_eq!(
resolve_opacity_at_time(1.0, Some(&animations), MediaTime::from_ticks(0)),
0.25
);
assert_eq!(
resolve_opacity_at_time(1.0, Some(&animations), MediaTime::from_ticks(-5)),
0.25
);
assert_eq!(resolve_opacity_at_time(1.0, None, MediaTime::from_ticks(0)), 1.0);
}
}
|
