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Define ComputedOperation::InterpolateMatrix.

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We use this arm to store the interpolated result of two mismatched
transform lists, and we resolve it until we know the reference box size
(on Gecko side). The conversion from ComputedOperation::InterpolateMatrix
to eCSSKeyword_interpolatematrix will be implemented later in this patch series.
This commit is contained in:
Boris Chiou 2017-05-25 16:15:13 +08:00
parent f388c0ab1e
commit a6099d0fc0
4 changed files with 56 additions and 4 deletions
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12
components/style/properties/helpers/animated_properties.mako.rs
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@ -1643,6 +1643,9 @@ fn build_identity_transform_list(list: &[TransformOperation]) -> Vec<TransformOp
let identity = ComputedMatrix::identity();
result.push(TransformOperation::Matrix(identity));
}
TransformOperation::InterpolateMatrix { .. } => {
panic!("Building the identity matrix for InterpolateMatrix is not supported");
}
}
}
@ -1744,8 +1747,13 @@ fn add_weighted_transform_lists(from_list: &[TransformOperation],
}
}
} else {
// TODO(gw): Implement matrix decomposition and interpolation
result.extend_from_slice(from_list);
use values::specified::Percentage;
let from_transform_list = TransformList(Some(from_list.to_vec()));
let to_transform_list = TransformList(Some(to_list.to_vec()));
result.push(
TransformOperation::InterpolateMatrix { from_list: from_transform_list,
to_list: to_transform_list,
progress: Percentage(other_portion as f32) });
}
TransformList(Some(result))