gecko-dev/gfx/thebes/public/gfxWindowsPlatform.h

/* -*- 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 Foundation code.
 *
 * The Initial Developer of the Original Code is Mozilla Foundation.
 * Portions created by the Initial Developer are Copyright (C) 2006
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Stuart Parmenter <pavlov@pavlov.net>
 *   Masayuki Nakano <masayuki@d-toybox.com>
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
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#ifndef GFX_WINDOWS_PLATFORM_H
#define GFX_WINDOWS_PLATFORM_H

#if defined(WINCE)
#define MOZ_FT2_FONTS 1
#endif

#include "gfxFontUtils.h"
#include "gfxWindowsSurface.h"
#ifdef MOZ_FT2_FONTS
#include "gfxFT2Fonts.h"
#else
#include "gfxWindowsFonts.h"
#endif
#include "gfxPlatform.h"

#include "nsTArray.h"
#include "nsDataHashtable.h"

#ifdef MOZ_FT2_FONTS
typedef struct FT_LibraryRec_ *FT_Library;
#endif

#include <windows.h>

class THEBES_API gfxWindowsPlatform : public gfxPlatform {
public:
    gfxWindowsPlatform();
    virtual ~gfxWindowsPlatform();
    static gfxWindowsPlatform *GetPlatform() {
        return (gfxWindowsPlatform*) gfxPlatform::GetPlatform();
    }

    virtual gfxPlatformFontList* CreatePlatformFontList();

    already_AddRefed<gfxASurface> CreateOffscreenSurface(const gfxIntSize& size,
                                                         gfxASurface::gfxImageFormat imageFormat);

    enum RenderMode {
        /* Use GDI and windows surfaces */
        RENDER_GDI = 0,

        /* Use 32bpp image surfaces and call StretchDIBits */
        RENDER_IMAGE_STRETCH32,

        /* Use 32bpp image surfaces, and do 32->24 conversion before calling StretchDIBits */
        RENDER_IMAGE_STRETCH24,

        /* Use DirectDraw on Windows CE */
        RENDER_DDRAW,

        /* Use 24bpp image surfaces, with final DirectDraw 16bpp blt on Windows CE */
        RENDER_IMAGE_DDRAW16,

        /* Use DirectDraw with OpenGL on Windows CE */
        RENDER_DDRAW_GL,

        /* max */
        RENDER_MODE_MAX
    };

    RenderMode GetRenderMode() { return mRenderMode; }
    void SetRenderMode(RenderMode rmode) { mRenderMode = rmode; }

    nsresult GetFontList(const nsACString& aLangGroup,
                         const nsACString& aGenericFamily,
                         nsTArray<nsString>& aListOfFonts);

    nsresult UpdateFontList();

    nsresult ResolveFontName(const nsAString& aFontName,
                             FontResolverCallback aCallback,
                             void *aClosure, PRBool& aAborted);

    nsresult GetStandardFamilyName(const nsAString& aFontName, nsAString& aFamilyName);

    gfxFontGroup *CreateFontGroup(const nsAString &aFamilies,
                                  const gfxFontStyle *aStyle,
                                  gfxUserFontSet *aUserFontSet);

    /**
     * Look up a local platform font using the full font face name (needed to support @font-face src local() )
     */
    virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry,
                                          const nsAString& aFontName);

    /**
     * Activate a platform font (needed to support @font-face src url() )
     */
    virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry,
                                           const PRUint8 *aFontData,
                                           PRUint32 aLength);

    /**
     * Check whether format is supported on a platform or not (if unclear, returns true)
     */
    virtual PRBool IsFontFormatSupported(nsIURI *aFontURI, PRUint32 aFormatFlags);

#ifndef MOZ_FT2_FONTS
    virtual void SetupClusterBoundaries(gfxTextRun *aTextRun, const PRUnichar *aString);
#endif

    /* Find a FontFamily/FontEntry object that represents a font on your system given a name */
    gfxFontFamily *FindFontFamily(const nsAString& aName);
    gfxFontEntry *FindFontEntry(const nsAString& aName, const gfxFontStyle& aFontStyle);

    PRBool GetPrefFontEntries(const nsCString& aLangGroup, nsTArray<nsRefPtr<gfxFontEntry> > *array);
    void SetPrefFontEntries(const nsCString& aLangGroup, nsTArray<nsRefPtr<gfxFontEntry> >& array);

    void ClearPrefFonts() { mPrefFonts.Clear(); }

#ifdef MOZ_FT2_FONTS
    FT_Library GetFTLibrary();
#endif

protected:
    void InitDisplayCaps();

    RenderMode mRenderMode;

private:
    void Init();

    virtual qcms_profile* GetPlatformCMSOutputProfile();

    // TODO: unify this with mPrefFonts (NB: holds families, not fonts) in gfxPlatformFontList
    nsDataHashtable<nsCStringHashKey, nsTArray<nsRefPtr<gfxFontEntry> > > mPrefFonts;
};

#endif /* GFX_WINDOWS_PLATFORM_H */