gecko/gfx/thebes/gfxOS2Fonts.h

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4.9 KiB
C++

/* vim: set sw=4 sts=4 et cin: */
/* ***** 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_FONTS_H
#define GFX_OS2_FONTS_H
#include "gfxTypes.h"
#include "gfxFont.h"
#include "gfxMatrix.h"
#include "nsDataHashtable.h"
#define INCL_GPI
#include <os2.h>
#include <cairo-os2.h>
#include "cairo-ft.h" // includes fontconfig.h, too
#include <freetype/tttables.h>
#include "nsICharsetConverterManager.h"
class gfxOS2FontEntry : public gfxFontEntry {
public:
gfxOS2FontEntry(const nsAString& aName) : gfxFontEntry(aName) {}
~gfxOS2FontEntry() {}
};
class gfxOS2Font : public gfxFont {
public:
gfxOS2Font(gfxOS2FontEntry *aFontEntry, const gfxFontStyle *aFontStyle);
virtual ~gfxOS2Font();
virtual const gfxFont::Metrics& GetMetrics();
cairo_font_face_t *CairoFontFace();
cairo_scaled_font_t *CairoScaledFont();
// Get the glyphID of a space
virtual PRUint32 GetSpaceGlyph() {
if (!mMetrics)
GetMetrics();
return mSpaceGlyph;
}
static already_AddRefed<gfxOS2Font> GetOrMakeFont(const nsAString& aName,
const gfxFontStyle *aStyle);
protected:
virtual PRBool SetupCairoFont(gfxContext *aContext);
private:
cairo_font_face_t *mFontFace;
cairo_scaled_font_t *mScaledFont;
Metrics *mMetrics;
gfxFloat mAdjustedSize;
PRUint32 mSpaceGlyph;
int mHinting;
PRBool mAntialias;
};
class THEBES_API gfxOS2FontGroup : public gfxFontGroup {
public:
gfxOS2FontGroup(const nsAString& aFamilies, const gfxFontStyle* aStyle, gfxUserFontSet *aUserFontSet);
virtual ~gfxOS2FontGroup();
virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle);
// create and initialize the textRun using FreeType font
virtual gfxTextRun *MakeTextRun(const PRUnichar* aString, PRUint32 aLength,
const Parameters* aParams, PRUint32 aFlags);
virtual gfxTextRun *MakeTextRun(const PRUint8* aString, PRUint32 aLength,
const Parameters* aParams, PRUint32 aFlags);
gfxOS2Font *GetFontAt(PRInt32 i) {
// If it turns out to be hard for all clients that cache font
// groups to call UpdateFontList at appropriate times, we could
// instead consider just calling UpdateFontList from someplace
// more central (such as here).
NS_ASSERTION(!mUserFontSet || mCurrGeneration == GetGeneration(),
"Whoever was caching this font group should have "
"called UpdateFontList on it");
#ifdef DEBUG_thebes_2
printf("gfxOS2FontGroup[%#x]::GetFontAt(%d), %#x, %#x\n",
(unsigned)this, i, (unsigned)&mFonts, (unsigned)&mFonts[i]);
#endif
return static_cast<gfxOS2Font*>(static_cast<gfxFont*>(mFonts[i]));
}
protected:
void InitTextRun(gfxTextRun *aTextRun, const PRUint8 *aUTF8Text,
PRUint32 aUTF8Length, PRUint32 aUTF8HeaderLength);
void CreateGlyphRunsFT(gfxTextRun *aTextRun, const PRUint8 *aUTF8,
PRUint32 aUTF8Length);
static PRBool FontCallback(const nsAString& aFontName,
const nsACString& aGenericName,
PRBool aUseFontSet,
void *aClosure);
private:
PRBool mEnableKerning;
};
#endif /* GFX_OS2_FONTS_H */