third_party/WebKit/Source/core/layout/compositing/CompositedSelectionBound.h

/*
 * Copyright (C) 2014 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef CompositedSelectionBound_h
#define CompositedSelectionBound_h

#include "platform/geometry/FloatPoint.h"
#include "platform/graphics/GraphicsLayer.h"
#include "wtf/Allocator.h"

namespace blink {

struct CompositedSelectionBound {
    STACK_ALLOCATED();
    CompositedSelectionBound()
        : layer(nullptr)
        , isTextDirectionRTL(false)
    {
    }

    // The structure describes the position of a caret in space of the GraphicsLayer the caret resides in.
    // Where edgeTopInLayer is the top point of the caret, usually on the ascend line of the line box,
    // and edgeBottomInLayer it the bottom point, on the baseline of the line box.
    GraphicsLayer* layer;
    FloatPoint edgeTopInLayer;
    FloatPoint edgeBottomInLayer;

    bool isTextDirectionRTL;
};

} // namespace blink

#endif