color_source_contents.cc

Go to the documentation of this file.

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#include "impeller/entity/contents/color_source_contents.h"
 
#include "impeller/entity/entity.h"
#include "impeller/geometry/matrix.h"
 
namespace impeller {
 
ColorSourceContents::ColorSourceContents() = default;
 
ColorSourceContents::~ColorSourceContents() = default;
 
void ColorSourceContents::SetOpacityFactor(Scalar alpha) {
  opacity_ = alpha;
}
 
Scalar ColorSourceContents::GetOpacityFactor() const {
  return opacity_ * inherited_opacity_;
}
 
void ColorSourceContents::SetEffectTransform(Matrix matrix) {
  inverse_matrix_ = matrix.Invert();
}
 
const Matrix& ColorSourceContents::GetInverseEffectTransform() const {
  return inverse_matrix_;
}
 
bool ColorSourceContents::IsSolidColor() const {
  return false;
}
 
std::optional<Rect> ColorSourceContents::GetCoverage(
    const Entity& entity) const {
  const Geometry* geometry = GetGeometry();
  return geometry ? geometry->GetCoverage(entity.GetTransform()) : std::nullopt;
}
 
void ColorSourceContents::SetInheritedOpacity(Scalar opacity) {
  inherited_opacity_ = opacity;
}
 
bool ColorSourceContents::AppliesAlphaForStrokeCoverage(
    const Matrix& transform) const {
  return GetGeometry() && GetGeometry()->ComputeAlphaCoverage(transform) < 1.0;
}
 
}  // namespace impeller