/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

// vim:cindent:ts=4:et:sw=4:

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*

 * interface for the set of algorithms that determine column and table

 * isizes

 */

#ifndef nsITableLayoutStrategy_h_

#define nsITableLayoutStrategy_h_

#include "nscore.h"

#include "nsCoord.h"

class gfxContext;

namespace mozilla {

struct ReflowInput;

} // namespace mozilla

class nsITableLayoutStrategy

{

public:

    using ReflowInput = mozilla::ReflowInput;

    virtual ~nsITableLayoutStrategy() {}

    /** Implement nsIFrame::GetMinISize for the table */

    virtual nscoord GetMinISize(gfxContext* aRenderingContext) = 0;

    /** Implement nsIFrame::GetPrefISize for the table */

    virtual nscoord GetPrefISize(gfxContext* aRenderingContext,

                                 bool aComputingSize) = 0;

    /** Implement nsIFrame::MarkIntrinsicISizesDirty for the table */

    virtual void MarkIntrinsicISizesDirty() = 0;

    /**

     * Compute final column isizes based on the intrinsic isize data and

     * the available isize.

     */

    virtual void ComputeColumnISizes(const ReflowInput& aReflowInput) = 0;

    /**

     * Return the type of table layout strategy, without the cost of

     * a virtual function call

     */

    enum Type { Auto, Fixed };

    Type GetType() const { return mType; }

protected:

    explicit nsITableLayoutStrategy(Type aType) : mType(aType) {}

private:

    Type mType;

};

#endif /* !defined(nsITableLayoutStrategy_h_) */