зеркало из https://github.com/mozilla/gecko-dev.git
69 строки
2.0 KiB
C++
69 строки
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* states and methods used while laying out a ruby segment */
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#ifndef mozilla_RubyReflowState_h_
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#define mozilla_RubyReflowState_h_
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#include "mozilla/Attributes.h"
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#include "WritingModes.h"
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#include "nsTArray.h"
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#define RTC_ARRAY_SIZE 1
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class nsRubyTextContainerFrame;
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namespace mozilla {
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class MOZ_STACK_CLASS RubyReflowState MOZ_FINAL
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{
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public:
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explicit RubyReflowState(
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WritingMode aLineWM,
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const nsTArray<nsRubyTextContainerFrame*>& aTextContainers);
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struct TextContainerInfo
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{
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nsRubyTextContainerFrame* mFrame;
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LogicalSize mLineSize;
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TextContainerInfo(WritingMode aLineWM, nsRubyTextContainerFrame* aFrame)
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: mFrame(aFrame)
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, mLineSize(aLineWM) { }
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};
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void AdvanceCurrentContainerIndex() { mCurrentContainerIndex++; }
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void SetTextContainerInfo(int32_t aIndex,
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nsRubyTextContainerFrame* aContainer,
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const LogicalSize& aLineSize)
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{
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MOZ_ASSERT(mTextContainers[aIndex].mFrame == aContainer);
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mTextContainers[aIndex].mLineSize = aLineSize;
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}
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const TextContainerInfo&
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GetCurrentTextContainerInfo(nsRubyTextContainerFrame* aFrame) const
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{
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MOZ_ASSERT(mTextContainers[mCurrentContainerIndex].mFrame == aFrame);
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return mTextContainers[mCurrentContainerIndex];
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}
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private:
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static MOZ_CONSTEXPR_VAR int32_t kBaseContainerIndex = -1;
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// The index of the current reflowing container. When it equals to
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// kBaseContainerIndex, we are reflowing ruby base. Otherwise, it
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// stands for the index of text containers in the ruby segment.
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int32_t mCurrentContainerIndex;
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nsAutoTArray<TextContainerInfo, RTC_ARRAY_SIZE> mTextContainers;
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};
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}
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#endif // mozilla_RubyReflowState_h_
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