layout/tables/nsITableLayoutStrategy.h
author Jonathan Kew <jkew@mozilla.com>
Thu, 24 Jul 2014 18:03:26 +0100
changeset 196029 ea66ed3c2ca1b20220a586c563bfd4fd62a61bb6
parent 196027 beb29103be6902f7759bbcb7b9eb4e39fb0636dd
child 202858 9d4e083655b993f73ba3eca84e0f14cdd270bcda
permissions -rw-r--r--
bug 1031241 pt 3 - Also rename Intrinsic{Width,Height} to Intrinsic{I,B}Size. r=smontagu

/* -*- 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
 * widths
 */

#ifndef nsITableLayoutStrategy_h_
#define nsITableLayoutStrategy_h_

#include "nscore.h"
#include "nsCoord.h"

class nsRenderingContext;
struct nsHTMLReflowState;

class nsITableLayoutStrategy
{
public:
    virtual ~nsITableLayoutStrategy() {}

    /** Implement nsIFrame::GetMinISize for the table */
    virtual nscoord GetMinISize(nsRenderingContext* aRenderingContext) = 0;

    /** Implement nsIFrame::GetPrefISize for the table */
    virtual nscoord GetPrefISize(nsRenderingContext* aRenderingContext,
                                 bool aComputingSize) = 0;

    /** Implement nsIFrame::MarkIntrinsicISizesDirty for the table */
    virtual void MarkIntrinsicISizesDirty() = 0;

    /**
     * Compute final column widths based on the intrinsic width data and
     * the available width.
     */
    virtual void ComputeColumnWidths(const nsHTMLReflowState& aReflowState) = 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:
    nsITableLayoutStrategy(Type aType) : mType(aType) {}
private:
    Type mType;
};

#endif /* !defined(nsITableLayoutStrategy_h_) */