Flutter Impeller
color_source_contents.cc
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
6 
9 
10 namespace impeller {
11 
13 
15 
17  geometry_ = geometry;
18 }
19 
21  return geometry_;
22 }
23 
25  opacity_ = alpha;
26 }
27 
29  return opacity_ * inherited_opacity_;
30 }
31 
33  inverse_matrix_ = matrix.Invert();
34 }
35 
37  return inverse_matrix_;
38 }
39 
41  return false;
42 }
43 
45  const Entity& entity) const {
46  return geometry_->GetCoverage(entity.GetTransform());
47 };
48 
50  inherited_opacity_ = opacity;
51 }
52 
54  const Matrix& transform) const {
56 }
57 
58 } // namespace impeller
void SetInheritedOpacity(Scalar opacity) override
Inherit the provided opacity.
const Geometry * GetGeometry() const
Get the geometry that this contents will use to render.
Scalar GetOpacityFactor() const
Get the opacity factor for this color source.
std::optional< Rect > GetCoverage(const Entity &entity) const override
Get the area of the render pass that will be affected when this contents is rendered.
bool AppliesAlphaForStrokeCoverage(const Matrix &transform) const
Whether the entity should be treated as non-opaque due to stroke geometry requiring alpha for coverag...
void SetEffectTransform(Matrix matrix)
Set the effect transform for this color source.
const Matrix & GetInverseEffectTransform() const
Set the inverted effect transform for this color source.
void SetOpacityFactor(Scalar opacity)
Set the opacity factor for this color source.
void SetGeometry(const Geometry *geometry)
Set the geometry that this contents will use to render.
const Matrix & GetTransform() const
Get the global transform matrix for this Entity.
Definition: entity.cc:44
virtual Scalar ComputeAlphaCoverage(const Matrix &transform) const
Definition: geometry.h:125
virtual std::optional< Rect > GetCoverage(const Matrix &transform) const =0
float Scalar
Definition: scalar.h:19
A 4x4 matrix using column-major storage.
Definition: matrix.h:37
Matrix Invert() const
Definition: matrix.cc:97