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// Copyright 2025 The Chromium Authors
// 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_STYLE_FIT_TEXT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_FIT_TEXT_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/platform/geometry/length.h"
namespace blink {
enum class FitTextTarget : uint8_t {
kNone,
kPerLine,
kConsistent,
};
enum class FitTextMethod : uint8_t {
kScale, // This is the default method.
kFontSize,
kScaleInline,
kLetterSpacing,
};
class CORE_EXPORT FitText {
DISALLOW_NEW();
public:
FitText() = default;
FitText(FitTextTarget target,
std::optional<FitTextMethod> method,
std::optional<float> size_limit)
: target_(target), method_(method), size_limit_(size_limit) {}
bool operator==(const FitText& other) const {
return target_ == other.target_ && method_ == other.method_ &&
size_limit_ == other.size_limit_;
}
bool operator!=(const FitText& other) const { return !(*this == other); }
FitTextTarget Target() const { return target_; }
FitTextMethod Method() const {
return method_.value_or(FitTextMethod::kScale);
}
std::optional<float> SizeLimit() const { return size_limit_; }
// A debug helper.
String ToString() const;
private:
FitTextTarget target_ = FitTextTarget::kNone;
std::optional<FitTextMethod> method_;
std::optional<float> size_limit_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_FIT_TEXT_H_
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