gfx/thebes/gfxUniscribeShaper.h
author Gregory Szorc <gps@mozilla.com>
Tue, 24 Sep 2013 15:05:43 -0700
changeset 162321 b51710e0e485a5c4edccd438ddb2a46bd7f0e91f
parent 153068 ac758cadd0341af4ea6a8e9763cf6b668a677734
child 165252 cf1b692cd29ad58c59f3a463b9360ffdb69a39f8
permissions -rw-r--r--
Bug 901990 - Part 3: Don't purge _tests during PGO builds; r=glandium CLOSED TREE

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 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/. */

#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(nullptr)
    {
        MOZ_COUNT_CTOR(gfxUniscribeShaper);
    }

    virtual ~gfxUniscribeShaper()
    {
        MOZ_COUNT_DTOR(gfxUniscribeShaper);
    }

    virtual bool ShapeText(gfxContext      *aContext,
                           const PRUnichar *aText,
                           uint32_t         aOffset,
                           uint32_t         aLength,
                           int32_t          aScript,
                           gfxShapedText   *aShapedText);

    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 */