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Mercurial (fd559328eaf3)

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Corporation code.
 *
 * The Initial Developer of the Original Code is Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Robert O'Callahan <robert@ocallahan.org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef GFX_FONTMISSINGGLYPHS_H
#define GFX_FONTMISSINGGLYPHS_H

#include "prtypes.h"
#include "gfxTypes.h"
#include "gfxContext.h"
#include "gfxRect.h"

/**
 * This class should not be instantiated. It's just a container
 * for some helper functions.
 */
class THEBES_API gfxFontMissingGlyphs {
public:
    /**
     * Draw hexboxes for a missing glyph.
     * @param aContext the context to draw to
     * @param aRect the glyph-box for the glyph that is missing
     * @param aChar the UTF16 codepoint for the character
     */
    static void DrawMissingGlyph(gfxContext *aContext, const gfxRect& aRect,
                                 PRUint32 aChar);
    /**
     * @return the desired minimum width for a glyph-box that will allow
     * the hexboxes to be drawn reasonably.
     */
    static gfxFloat GetDesiredMinWidth(PRUint32 aChar);
};

#endif