gecko-dev/gfx/thebes/gfxUniscribeShaper.h

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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/
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* 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 Foundation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2005-2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <stuart@mozilla.com>
* Masayuki Nakano <masayuki@d-toybox.com>
* John Daggett <jdaggett@mozilla.com>
* Jonathan Kew <jfkthame@gmail.com>
*
* 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
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* ***** END LICENSE BLOCK ***** */
#ifndef GFX_UNISCRIBESHAPER_H
#define GFX_UNISCRIBESHAPER_H
#include "prtypes.h"
#include "gfxTypes.h"
#include "gfxGDIFont.h"
#include <usp10.h>
#include <cairo-win32.h>
class gfxUniscribeShaper : public gfxFontShaper
{
public:
gfxUniscribeShaper(gfxGDIFont *aFont)
: gfxFontShaper(aFont)
, mScriptCache(NULL)
{
MOZ_COUNT_CTOR(gfxUniscribeShaper);
}
virtual ~gfxUniscribeShaper()
{
MOZ_COUNT_DTOR(gfxUniscribeShaper);
}
virtual PRBool InitTextRun(gfxContext *aContext,
gfxTextRun *aTextRun,
const PRUnichar *aString,
PRUint32 aRunStart,
PRUint32 aRunLength,
PRInt32 aRunScript);
SCRIPT_CACHE *ScriptCache() { return &mScriptCache; }
gfxGDIFont *GetFont() { return static_cast<gfxGDIFont*>(mFont); }
private:
SCRIPT_CACHE mScriptCache;
enum {
kUnicodeVS17 = gfxFontUtils::kUnicodeVS17,
kUnicodeVS256 = gfxFontUtils::kUnicodeVS256
};
};
#endif /* GFX_UNISCRIBESHAPER_H */