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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_APPLIED_DECORATION_PAINTER_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_APPLIED_DECORATION_PAINTER_H_
#include "third_party/blink/renderer/core/paint/decoration_info.h"
#include "third_party/blink/renderer/core/style/applied_text_decoration.h"
#include "third_party/blink/renderer/core/style/computed_style_constants.h"
#include "third_party/blink/renderer/platform/geometry/float_point.h"
#include "third_party/blink/renderer/platform/geometry/float_rect.h"
#include "third_party/blink/renderer/platform/geometry/layout_rect.h"
#include "third_party/blink/renderer/platform/graphics/path.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
namespace blink {
class GraphicsContext;
// Helper class for painting a text decorations. Each instance paints a single
// decoration.
class AppliedDecorationPainter final {
STACK_ALLOCATED();
public:
AppliedDecorationPainter(GraphicsContext& context,
const DecorationInfo& decoration_info,
float start_point_y_offset,
const AppliedTextDecoration& decoration,
size_t decoration_info_thickness_index,
float double_offset,
int wavy_offset_factor)
: context_(context),
start_point_(decoration_info.local_origin +
FloatPoint(0, start_point_y_offset)),
decoration_info_(decoration_info),
resolved_thickness_(decoration_info.applied_decorations_thickness
[decoration_info_thickness_index]),
decoration_(decoration),
double_offset_(double_offset),
wavy_offset_factor_(wavy_offset_factor) {}
void Paint();
FloatRect Bounds();
private:
void StrokeWavyTextDecoration();
Path PrepareWavyStrokePath();
Path PrepareDottedDashedStrokePath();
GraphicsContext& context_;
const FloatPoint start_point_;
const DecorationInfo& decoration_info_;
float resolved_thickness_;
const AppliedTextDecoration& decoration_;
const float double_offset_;
const int wavy_offset_factor_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_PAINT_APPLIED_DECORATION_PAINTER_H_
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