layout_flow_thread.h | Explore in Territory

/*
 * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *    disclaimer.
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 *    copyright notice, this list of conditions and the following
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 *    provided with the distribution.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LAYOUT_FLOW_THREAD_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LAYOUT_FLOW_THREAD_H_

#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/layout/layout_block_flow.h"
#include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
#include "third_party/blink/renderer/platform/wtf/linked_hash_set.h"
#include "third_party/blink/renderer/platform/wtf/pod_interval_tree.h"

namespace blink {

class LayoutMultiColumnSet;

LayoutMultiColumnSetList;

// LayoutFlowThread is used to collect all the layout objects that participate
// in a flow thread. It will also help in doing the layout. However, it will not
// layout directly to screen. Instead, LayoutMultiColumnSet objects will
// redirect their paint and nodeAtPoint methods to this object. Each
// LayoutMultiColumnSet will actually be a viewPort of the LayoutFlowThread.
class CORE_EXPORT LayoutFlowThread : public LayoutBlockFlow { … };

template <>
struct DowncastTraits<LayoutFlowThread> { … };

}  // namespace blink

namespace WTF {
// These structures are used by PODIntervalTree for debugging.
#ifndef NDEBUG
template <>
struct ValueToString<blink::LayoutMultiColumnSet*> { … };
template <>
struct ValueToString<blink::LayoutUnit> { … };
#endif
}  // namespace WTF

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_LAYOUT_LAYOUT_FLOW_THREAD_H_
chromium/third_party/blink/renderer/core/layout/layout_flow_thread.h
