gecko-dev/gfx/thebes/public/gfxOS2Platform.h
2009-09-22 08:45:56 -04:00

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3.7 KiB
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/* ***** 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 OS/2 code in Thebes.
*
* The Initial Developer of the Original Code is
* Peter Weilbacher <mozilla@Weilbacher.org>.
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* 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_OS2_PLATFORM_H
#define GFX_OS2_PLATFORM_H
#define INCL_GPIBITMAPS
#include <os2.h>
#include "gfxPlatform.h"
#include "gfxOS2Fonts.h"
#include "gfxFontUtils.h"
#include "nsTArray.h"
class gfxFontconfigUtils;
class THEBES_API gfxOS2Platform : public gfxPlatform {
public:
gfxOS2Platform();
virtual ~gfxOS2Platform();
static gfxOS2Platform *GetPlatform() {
return (gfxOS2Platform*) gfxPlatform::GetPlatform();
}
already_AddRefed<gfxASurface>
CreateOffscreenSurface(const gfxIntSize& size,
gfxASurface::gfxImageFormat imageFormat);
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);
// Given a string and a font we already have, find the font that
// supports the most code points and most closely resembles aFont.
// This simple version involves looking at the fonts on the machine to see
// which code points they support.
already_AddRefed<gfxOS2Font> FindFontForChar(PRUint32 aCh, gfxOS2Font *aFont);
// return true if it's already known that we don't have a font for this char
PRBool noFontWithChar(PRUint32 aCh) {
return mCodepointsWithNoFonts.test(aCh);
}
protected:
void InitDisplayCaps();
static gfxFontconfigUtils *sFontconfigUtils;
private:
// when font lookup fails for a character, cache it to skip future searches
gfxSparseBitSet mCodepointsWithNoFonts;
};
#endif /* GFX_OS2_PLATFORM_H */