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paint.h
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paint.h
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// 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.
#pragma once
#include <memory>
#include "flutter/fml/macros.h"
#include "impeller/entity/contents/contents.h"
#include "impeller/entity/contents/filters/filter_contents.h"
#include "impeller/entity/contents/linear_gradient_contents.h"
#include "impeller/entity/contents/solid_stroke_contents.h"
#include "impeller/entity/entity.h"
#include "impeller/geometry/color.h"
namespace impeller {
struct MaskBlur {
FilterContents::BlurStyle blur_style;
FilterContents::Sigma sigma;
};
struct Paint {
enum class Style {
kFill,
kStroke,
};
Color color = Color::Black();
std::shared_ptr<LinearGradientContents> contents;
Scalar stroke_width = 0.0;
SolidStrokeContents::Cap stroke_cap = SolidStrokeContents::Cap::kButt;
SolidStrokeContents::Join stroke_join = SolidStrokeContents::Join::kMiter;
Scalar stroke_miter = 4.0;
Style style = Style::kFill;
Entity::BlendMode blend_mode = Entity::BlendMode::kSourceOver;
std::optional<MaskBlur> mask_blur;
/// @brief Wrap this paint's configured filters to the given contents.
/// @param[in] input The contents to wrap with paint's filters.
/// @param[in] is_solid_color Affects mask blurring behavior. If false, use
/// the image border for mask blurring. If true,
/// do a Gaussian blur to achieve the mask
/// blurring effect for arbitrary paths. If unset,
/// use the current paint configuration to infer
/// the result.
/// @return The filter-wrapped contents. If there are no filters that need
/// to be wrapped for the current paint configuration, the
/// original contents is returned.
std::shared_ptr<Contents> WithFilters(
std::shared_ptr<Contents> input,
std::optional<bool> is_solid_color = std::nullopt) const;
std::shared_ptr<Contents> CreateContentsForEntity(Path path = {},
bool cover = false) const;
};
} // namespace impeller