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--HG-- rename : gfx/thebes/src/GLContext.cpp => gfx/thebes/GLContext.cpp rename : gfx/thebes/public/GLContext.h => gfx/thebes/GLContext.h rename : gfx/thebes/public/GLContextProvider.h => gfx/thebes/GLContextProvider.h rename : gfx/thebes/src/GLContextProviderCGL.mm => gfx/thebes/GLContextProviderCGL.mm rename : gfx/thebes/src/GLContextProviderEGL.cpp => gfx/thebes/GLContextProviderEGL.cpp rename : gfx/thebes/src/GLContextProviderGLX.cpp => gfx/thebes/GLContextProviderGLX.cpp rename : gfx/thebes/src/GLContextProviderNull.cpp => gfx/thebes/GLContextProviderNull.cpp rename : gfx/thebes/src/GLContextProviderOSMesa.cpp => gfx/thebes/GLContextProviderOSMesa.cpp rename : gfx/thebes/src/GLContextProviderWGL.cpp => gfx/thebes/GLContextProviderWGL.cpp rename : gfx/thebes/public/GLDefs.h => gfx/thebes/GLDefs.h rename : gfx/thebes/public/GLXLibrary.h => gfx/thebes/GLXLibrary.h rename : gfx/thebes/public/WGLLibrary.h => gfx/thebes/WGLLibrary.h rename : gfx/thebes/src/cairo-gdk-utils.c => gfx/thebes/cairo-gdk-utils.c rename : gfx/thebes/src/cairo-gdk-utils.h => gfx/thebes/cairo-gdk-utils.h rename : gfx/thebes/src/cairo-xlib-utils.c => gfx/thebes/cairo-xlib-utils.c rename : gfx/thebes/src/cairo-xlib-utils.h => gfx/thebes/cairo-xlib-utils.h rename : gfx/thebes/src/genUnicodeScriptData.pl => gfx/thebes/genUnicodeScriptData.pl rename : gfx/thebes/public/gfx3DMatrix.h => gfx/thebes/gfx3DMatrix.h rename : gfx/thebes/src/gfxASurface.cpp => gfx/thebes/gfxASurface.cpp rename : gfx/thebes/public/gfxASurface.h => gfx/thebes/gfxASurface.h rename : gfx/thebes/src/gfxAlphaRecovery.cpp => gfx/thebes/gfxAlphaRecovery.cpp rename : gfx/thebes/public/gfxAlphaRecovery.h => gfx/thebes/gfxAlphaRecovery.h rename : gfx/thebes/src/gfxAndroidPlatform.cpp => gfx/thebes/gfxAndroidPlatform.cpp rename : gfx/thebes/public/gfxAndroidPlatform.h => gfx/thebes/gfxAndroidPlatform.h rename : gfx/thebes/src/gfxAtomList.h => gfx/thebes/gfxAtomList.h rename : gfx/thebes/src/gfxAtoms.cpp => gfx/thebes/gfxAtoms.cpp rename : gfx/thebes/src/gfxAtoms.h => gfx/thebes/gfxAtoms.h rename : gfx/thebes/src/gfxBeOSPlatform.cpp => gfx/thebes/gfxBeOSPlatform.cpp rename : gfx/thebes/public/gfxBeOSPlatform.h => gfx/thebes/gfxBeOSPlatform.h rename : gfx/thebes/src/gfxBeOSSurface.cpp => gfx/thebes/gfxBeOSSurface.cpp rename : gfx/thebes/public/gfxBeOSSurface.h => gfx/thebes/gfxBeOSSurface.h rename : gfx/thebes/public/gfxColor.h => gfx/thebes/gfxColor.h rename : gfx/thebes/src/gfxContext.cpp => gfx/thebes/gfxContext.cpp rename : gfx/thebes/public/gfxContext.h => gfx/thebes/gfxContext.h rename : gfx/thebes/src/gfxCoreTextShaper.cpp => gfx/thebes/gfxCoreTextShaper.cpp rename : gfx/thebes/src/gfxCoreTextShaper.h => gfx/thebes/gfxCoreTextShaper.h rename : gfx/thebes/src/gfxD2DSurface.cpp => gfx/thebes/gfxD2DSurface.cpp rename : gfx/thebes/public/gfxD2DSurface.h => gfx/thebes/gfxD2DSurface.h rename : gfx/thebes/src/gfxDDrawSurface.cpp => gfx/thebes/gfxDDrawSurface.cpp rename : gfx/thebes/public/gfxDDrawSurface.h => gfx/thebes/gfxDDrawSurface.h rename : gfx/thebes/src/gfxDWriteCommon.cpp => gfx/thebes/gfxDWriteCommon.cpp rename : gfx/thebes/src/gfxDWriteCommon.h => gfx/thebes/gfxDWriteCommon.h rename : gfx/thebes/src/gfxDWriteFontList.cpp => gfx/thebes/gfxDWriteFontList.cpp rename : gfx/thebes/src/gfxDWriteFontList.h => gfx/thebes/gfxDWriteFontList.h rename : gfx/thebes/src/gfxDWriteFonts.cpp => gfx/thebes/gfxDWriteFonts.cpp rename : gfx/thebes/public/gfxDWriteFonts.h => gfx/thebes/gfxDWriteFonts.h rename : gfx/thebes/src/gfxDWriteShaper.cpp => gfx/thebes/gfxDWriteShaper.cpp rename : gfx/thebes/src/gfxDWriteShaper.h => gfx/thebes/gfxDWriteShaper.h rename : gfx/thebes/src/gfxDWriteTextAnalysis.cpp => gfx/thebes/gfxDWriteTextAnalysis.cpp rename : gfx/thebes/src/gfxDWriteTextAnalysis.h => gfx/thebes/gfxDWriteTextAnalysis.h rename : gfx/thebes/src/gfxDirectFBSurface.cpp => gfx/thebes/gfxDirectFBSurface.cpp rename : gfx/thebes/public/gfxDirectFBSurface.h => gfx/thebes/gfxDirectFBSurface.h rename : gfx/thebes/src/gfxDllDeps.cpp => gfx/thebes/gfxDllDeps.cpp rename : gfx/thebes/src/gfxFT2FontBase.cpp => gfx/thebes/gfxFT2FontBase.cpp rename : gfx/thebes/public/gfxFT2FontBase.h => gfx/thebes/gfxFT2FontBase.h rename : gfx/thebes/src/gfxFT2FontList.cpp => gfx/thebes/gfxFT2FontList.cpp rename : gfx/thebes/src/gfxFT2FontList.h => gfx/thebes/gfxFT2FontList.h rename : gfx/thebes/src/gfxFT2Fonts.cpp => gfx/thebes/gfxFT2Fonts.cpp rename : gfx/thebes/public/gfxFT2Fonts.h => gfx/thebes/gfxFT2Fonts.h rename : gfx/thebes/src/gfxFT2Utils.cpp => gfx/thebes/gfxFT2Utils.cpp rename : gfx/thebes/src/gfxFT2Utils.h => gfx/thebes/gfxFT2Utils.h rename : gfx/thebes/src/gfxFont.cpp => gfx/thebes/gfxFont.cpp rename : gfx/thebes/public/gfxFont.h => gfx/thebes/gfxFont.h rename : gfx/thebes/public/gfxFontConstants.h => gfx/thebes/gfxFontConstants.h rename : gfx/thebes/src/gfxFontMissingGlyphs.cpp => gfx/thebes/gfxFontMissingGlyphs.cpp rename : gfx/thebes/src/gfxFontMissingGlyphs.h => gfx/thebes/gfxFontMissingGlyphs.h rename : gfx/thebes/src/gfxFontTest.cpp => gfx/thebes/gfxFontTest.cpp rename : gfx/thebes/public/gfxFontTest.h => gfx/thebes/gfxFontTest.h rename : gfx/thebes/src/gfxFontUtils.cpp => gfx/thebes/gfxFontUtils.cpp rename : gfx/thebes/public/gfxFontUtils.h => gfx/thebes/gfxFontUtils.h rename : gfx/thebes/src/gfxFontconfigUtils.cpp => gfx/thebes/gfxFontconfigUtils.cpp rename : gfx/thebes/src/gfxFontconfigUtils.h => gfx/thebes/gfxFontconfigUtils.h rename : gfx/thebes/src/gfxGDIFont.cpp => gfx/thebes/gfxGDIFont.cpp rename : gfx/thebes/src/gfxGDIFont.h => gfx/thebes/gfxGDIFont.h rename : gfx/thebes/src/gfxGDIFontList.cpp => gfx/thebes/gfxGDIFontList.cpp rename : gfx/thebes/src/gfxGDIFontList.h => gfx/thebes/gfxGDIFontList.h rename : gfx/thebes/src/gfxGDIShaper.cpp => gfx/thebes/gfxGDIShaper.cpp rename : gfx/thebes/src/gfxGDIShaper.h => gfx/thebes/gfxGDIShaper.h rename : gfx/thebes/src/gfxGdkNativeRenderer.cpp => gfx/thebes/gfxGdkNativeRenderer.cpp rename : gfx/thebes/public/gfxGdkNativeRenderer.h => gfx/thebes/gfxGdkNativeRenderer.h rename : gfx/thebes/public/gfxGlitzSurface.h => gfx/thebes/gfxGlitzSurface.h rename : gfx/thebes/src/gfxHarfBuzzShaper.cpp => gfx/thebes/gfxHarfBuzzShaper.cpp rename : gfx/thebes/src/gfxHarfBuzzShaper.h => gfx/thebes/gfxHarfBuzzShaper.h rename : gfx/thebes/src/gfxImageSurface.cpp => gfx/thebes/gfxImageSurface.cpp rename : gfx/thebes/public/gfxImageSurface.h => gfx/thebes/gfxImageSurface.h rename : gfx/thebes/src/gfxMacFont.cpp => gfx/thebes/gfxMacFont.cpp rename : gfx/thebes/src/gfxMacFont.h => gfx/thebes/gfxMacFont.h rename : gfx/thebes/src/gfxMacPlatformFontList.h => gfx/thebes/gfxMacPlatformFontList.h rename : gfx/thebes/src/gfxMacPlatformFontList.mm => gfx/thebes/gfxMacPlatformFontList.mm rename : gfx/thebes/src/gfxMatrix.cpp => gfx/thebes/gfxMatrix.cpp rename : gfx/thebes/public/gfxMatrix.h => gfx/thebes/gfxMatrix.h rename : gfx/thebes/src/gfxOS2Fonts.cpp => gfx/thebes/gfxOS2Fonts.cpp rename : gfx/thebes/public/gfxOS2Fonts.h => gfx/thebes/gfxOS2Fonts.h rename : gfx/thebes/src/gfxOS2Platform.cpp => gfx/thebes/gfxOS2Platform.cpp rename : gfx/thebes/public/gfxOS2Platform.h => gfx/thebes/gfxOS2Platform.h rename : gfx/thebes/src/gfxOS2Surface.cpp => gfx/thebes/gfxOS2Surface.cpp rename : gfx/thebes/public/gfxOS2Surface.h => gfx/thebes/gfxOS2Surface.h rename : gfx/thebes/src/gfxPDFSurface.cpp => gfx/thebes/gfxPDFSurface.cpp rename : gfx/thebes/public/gfxPDFSurface.h => gfx/thebes/gfxPDFSurface.h rename : gfx/thebes/src/gfxPSSurface.cpp => gfx/thebes/gfxPSSurface.cpp rename : gfx/thebes/public/gfxPSSurface.h => gfx/thebes/gfxPSSurface.h rename : gfx/thebes/src/gfxPangoFonts.cpp => gfx/thebes/gfxPangoFonts.cpp rename : gfx/thebes/public/gfxPangoFonts.h => gfx/thebes/gfxPangoFonts.h rename : gfx/thebes/src/gfxPath.cpp => gfx/thebes/gfxPath.cpp rename : gfx/thebes/public/gfxPath.h => gfx/thebes/gfxPath.h rename : gfx/thebes/src/gfxPattern.cpp => gfx/thebes/gfxPattern.cpp rename : gfx/thebes/public/gfxPattern.h => gfx/thebes/gfxPattern.h rename : gfx/thebes/src/gfxPlatform.cpp => gfx/thebes/gfxPlatform.cpp rename : gfx/thebes/public/gfxPlatform.h => gfx/thebes/gfxPlatform.h rename : gfx/thebes/src/gfxPlatformFontList.cpp => gfx/thebes/gfxPlatformFontList.cpp rename : gfx/thebes/src/gfxPlatformFontList.h => gfx/thebes/gfxPlatformFontList.h rename : gfx/thebes/src/gfxPlatformGtk.cpp => gfx/thebes/gfxPlatformGtk.cpp rename : gfx/thebes/public/gfxPlatformGtk.h => gfx/thebes/gfxPlatformGtk.h rename : gfx/thebes/src/gfxPlatformMac.cpp => gfx/thebes/gfxPlatformMac.cpp rename : gfx/thebes/public/gfxPlatformMac.h => gfx/thebes/gfxPlatformMac.h rename : gfx/thebes/public/gfxPoint.h => gfx/thebes/gfxPoint.h rename : gfx/thebes/src/gfxQPainterSurface.cpp => gfx/thebes/gfxQPainterSurface.cpp rename : gfx/thebes/public/gfxQPainterSurface.h => gfx/thebes/gfxQPainterSurface.h rename : gfx/thebes/src/gfxQtNativeRenderer.cpp => gfx/thebes/gfxQtNativeRenderer.cpp rename : gfx/thebes/public/gfxQtNativeRenderer.h => gfx/thebes/gfxQtNativeRenderer.h rename : gfx/thebes/src/gfxQtPlatform.cpp => gfx/thebes/gfxQtPlatform.cpp rename : gfx/thebes/public/gfxQtPlatform.h => gfx/thebes/gfxQtPlatform.h rename : gfx/thebes/src/gfxQuartzImageSurface.cpp => gfx/thebes/gfxQuartzImageSurface.cpp rename : gfx/thebes/public/gfxQuartzImageSurface.h => gfx/thebes/gfxQuartzImageSurface.h rename : gfx/thebes/src/gfxQuartzNativeDrawing.cpp => gfx/thebes/gfxQuartzNativeDrawing.cpp rename : gfx/thebes/public/gfxQuartzNativeDrawing.h => gfx/thebes/gfxQuartzNativeDrawing.h rename : gfx/thebes/src/gfxQuartzPDFSurface.cpp => gfx/thebes/gfxQuartzPDFSurface.cpp rename : gfx/thebes/public/gfxQuartzPDFSurface.h => gfx/thebes/gfxQuartzPDFSurface.h rename : gfx/thebes/src/gfxQuartzSurface.cpp => gfx/thebes/gfxQuartzSurface.cpp rename : gfx/thebes/public/gfxQuartzSurface.h => gfx/thebes/gfxQuartzSurface.h rename : gfx/thebes/src/gfxRect.cpp => gfx/thebes/gfxRect.cpp rename : gfx/thebes/public/gfxRect.h => gfx/thebes/gfxRect.h rename : gfx/thebes/src/gfxScriptItemizer.cpp => gfx/thebes/gfxScriptItemizer.cpp rename : gfx/thebes/src/gfxScriptItemizer.h => gfx/thebes/gfxScriptItemizer.h rename : gfx/thebes/src/gfxSharedImageSurface.cpp => gfx/thebes/gfxSharedImageSurface.cpp rename : gfx/thebes/public/gfxSharedImageSurface.h => gfx/thebes/gfxSharedImageSurface.h rename : gfx/thebes/src/gfxSkipChars.cpp => gfx/thebes/gfxSkipChars.cpp rename : gfx/thebes/public/gfxSkipChars.h => gfx/thebes/gfxSkipChars.h rename : gfx/thebes/src/gfxTextRunCache.cpp => gfx/thebes/gfxTextRunCache.cpp rename : gfx/thebes/public/gfxTextRunCache.h => gfx/thebes/gfxTextRunCache.h rename : gfx/thebes/src/gfxTextRunWordCache.cpp => gfx/thebes/gfxTextRunWordCache.cpp rename : gfx/thebes/public/gfxTextRunWordCache.h => gfx/thebes/gfxTextRunWordCache.h rename : gfx/thebes/public/gfxTypes.h => gfx/thebes/gfxTypes.h rename : gfx/thebes/src/gfxUnicodeProperties.cpp => gfx/thebes/gfxUnicodeProperties.cpp rename : gfx/thebes/src/gfxUnicodeProperties.h => gfx/thebes/gfxUnicodeProperties.h rename : gfx/thebes/src/gfxUnicodePropertyData.cpp => gfx/thebes/gfxUnicodePropertyData.cpp rename : gfx/thebes/src/gfxUniscribeShaper.cpp => gfx/thebes/gfxUniscribeShaper.cpp rename : gfx/thebes/src/gfxUniscribeShaper.h => gfx/thebes/gfxUniscribeShaper.h rename : gfx/thebes/src/gfxUserFontSet.cpp => gfx/thebes/gfxUserFontSet.cpp rename : gfx/thebes/public/gfxUserFontSet.h => gfx/thebes/gfxUserFontSet.h rename : gfx/thebes/src/gfxUtils.cpp => gfx/thebes/gfxUtils.cpp rename : gfx/thebes/public/gfxUtils.h => gfx/thebes/gfxUtils.h rename : gfx/thebes/src/gfxWindowsNativeDrawing.cpp => gfx/thebes/gfxWindowsNativeDrawing.cpp rename : gfx/thebes/public/gfxWindowsNativeDrawing.h => gfx/thebes/gfxWindowsNativeDrawing.h rename : gfx/thebes/src/gfxWindowsPlatform.cpp => gfx/thebes/gfxWindowsPlatform.cpp rename : gfx/thebes/public/gfxWindowsPlatform.h => gfx/thebes/gfxWindowsPlatform.h rename : gfx/thebes/src/gfxWindowsSurface.cpp => gfx/thebes/gfxWindowsSurface.cpp rename : gfx/thebes/public/gfxWindowsSurface.h => gfx/thebes/gfxWindowsSurface.h rename : gfx/thebes/src/gfxXlibNativeRenderer.cpp => gfx/thebes/gfxXlibNativeRenderer.cpp rename : gfx/thebes/public/gfxXlibNativeRenderer.h => gfx/thebes/gfxXlibNativeRenderer.h rename : gfx/thebes/src/gfxXlibSurface.cpp => gfx/thebes/gfxXlibSurface.cpp rename : gfx/thebes/public/gfxXlibSurface.h => gfx/thebes/gfxXlibSurface.h rename : gfx/thebes/src/ignorable.x-ccmap => gfx/thebes/ignorable.x-ccmap rename : gfx/thebes/src/nsUnicodeRange.cpp => gfx/thebes/nsUnicodeRange.cpp rename : gfx/thebes/src/nsUnicodeRange.h => gfx/thebes/nsUnicodeRange.h rename : gfx/thebes/src/woff-private.h => gfx/thebes/woff-private.h rename : gfx/thebes/src/woff.c => gfx/thebes/woff.c rename : gfx/thebes/src/woff.h => gfx/thebes/woff.h
344 lines
12 KiB
C++
344 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Corporation code.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2006-2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir@pobox.com>
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* Masayuki Nakano <masayuki@d-toybox.com>
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* John Daggett <jdaggett@mozilla.com>
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* Jonathan Kew <jfkthame@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "gfxMacFont.h"
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#include "gfxCoreTextShaper.h"
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#include "gfxHarfBuzzShaper.h"
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#include "gfxPlatformMac.h"
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#include "gfxContext.h"
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#include "cairo-quartz.h"
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gfxMacFont::gfxMacFont(MacOSFontEntry *aFontEntry, const gfxFontStyle *aFontStyle,
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PRBool aNeedsBold)
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: gfxFont(aFontEntry, aFontStyle),
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mATSFont(aFontEntry->GetFontRef()),
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mCGFont(nsnull),
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mFontFace(nsnull),
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mScaledFont(nsnull)
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{
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if (aNeedsBold) {
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mSyntheticBoldOffset = 1; // devunit offset when double-striking text to fake boldness
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}
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mCGFont = ::CGFontCreateWithPlatformFont(&mATSFont);
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if (!mCGFont) {
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mIsValid = PR_FALSE;
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return;
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}
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// InitMetrics will handle the sizeAdjust factor and set mAdjustedSize
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InitMetrics();
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if (!mIsValid) {
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return;
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}
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mFontFace = cairo_quartz_font_face_create_for_cgfont(mCGFont);
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cairo_status_t cairoerr = cairo_font_face_status(mFontFace);
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if (cairoerr != CAIRO_STATUS_SUCCESS) {
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mIsValid = PR_FALSE;
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#ifdef DEBUG
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char warnBuf[1024];
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sprintf(warnBuf, "Failed to create Cairo font face: %s status: %d",
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NS_ConvertUTF16toUTF8(GetName()).get(), cairoerr);
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NS_WARNING(warnBuf);
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#endif
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return;
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}
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cairo_matrix_t sizeMatrix, ctm;
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cairo_matrix_init_identity(&ctm);
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cairo_matrix_init_scale(&sizeMatrix, mAdjustedSize, mAdjustedSize);
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// synthetic oblique by skewing via the font matrix
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PRBool needsOblique =
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(mFontEntry != NULL) &&
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(!mFontEntry->IsItalic() && (mStyle.style & (FONT_STYLE_ITALIC | FONT_STYLE_OBLIQUE)));
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if (needsOblique) {
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double skewfactor = (needsOblique ? Fix2X(kATSItalicQDSkew) : 0);
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cairo_matrix_t style;
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cairo_matrix_init(&style,
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1, //xx
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0, //yx
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-1 * skewfactor, //xy
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1, //yy
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0, //x0
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0); //y0
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cairo_matrix_multiply(&sizeMatrix, &sizeMatrix, &style);
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}
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cairo_font_options_t *fontOptions = cairo_font_options_create();
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// turn off font anti-aliasing based on user pref setting
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if (mAdjustedSize <= (float) gfxPlatformMac::GetPlatform()->GetAntiAliasingThreshold()) {
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cairo_font_options_set_antialias(fontOptions, CAIRO_ANTIALIAS_NONE);
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}
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mScaledFont = cairo_scaled_font_create(mFontFace, &sizeMatrix, &ctm, fontOptions);
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cairo_font_options_destroy(fontOptions);
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cairoerr = cairo_scaled_font_status(mScaledFont);
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if (cairoerr != CAIRO_STATUS_SUCCESS) {
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mIsValid = PR_FALSE;
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#ifdef DEBUG
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char warnBuf[1024];
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sprintf(warnBuf, "Failed to create scaled font: %s status: %d",
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NS_ConvertUTF16toUTF8(GetName()).get(), cairoerr);
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NS_WARNING(warnBuf);
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#endif
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}
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if (FontCanSupportHarfBuzz()) {
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mHarfBuzzShaper = new gfxHarfBuzzShaper(this);
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}
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}
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gfxMacFont::~gfxMacFont()
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{
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if (mScaledFont) {
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cairo_scaled_font_destroy(mScaledFont);
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}
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if (mFontFace) {
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cairo_font_face_destroy(mFontFace);
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}
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// this is documented to be safe if mCGFont is null
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::CGFontRelease(mCGFont);
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}
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void
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gfxMacFont::CreatePlatformShaper()
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{
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mPlatformShaper = new gfxCoreTextShaper(this);
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}
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PRBool
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gfxMacFont::SetupCairoFont(gfxContext *aContext)
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{
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if (cairo_scaled_font_status(mScaledFont) != CAIRO_STATUS_SUCCESS) {
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// Don't cairo_set_scaled_font as that would propagate the error to
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// the cairo_t, precluding any further drawing.
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return PR_FALSE;
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}
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cairo_set_scaled_font(aContext->GetCairo(), mScaledFont);
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return PR_TRUE;
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}
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static double
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RoundToNearestMultiple(double aValue, double aFraction)
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{
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return floor(aValue/aFraction + 0.5) * aFraction;
|
|
}
|
|
|
|
void
|
|
gfxMacFont::InitMetrics()
|
|
{
|
|
gfxFloat size =
|
|
PR_MAX(((mAdjustedSize != 0.0f) ? mAdjustedSize : mStyle.size), 1.0f);
|
|
PRUint32 upem = ::CGFontGetUnitsPerEm(mCGFont);
|
|
if (!upem) {
|
|
mIsValid = PR_FALSE;
|
|
#ifdef DEBUG
|
|
char warnBuf[1024];
|
|
sprintf(warnBuf, "Bad font metrics for: %s (no unitsPerEm value)",
|
|
NS_ConvertUTF16toUTF8(mFontEntry->Name()).get());
|
|
NS_WARNING(warnBuf);
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
ATSFontMetrics atsMetrics;
|
|
OSStatus err;
|
|
|
|
err = ::ATSFontGetHorizontalMetrics(mATSFont, kATSOptionFlagsDefault,
|
|
&atsMetrics);
|
|
if (err != noErr) {
|
|
mIsValid = PR_FALSE;
|
|
|
|
#ifdef DEBUG
|
|
char warnBuf[1024];
|
|
sprintf(warnBuf, "Bad font metrics for: %s err: %8.8x",
|
|
NS_ConvertUTF16toUTF8(mFontEntry->Name()).get(), PRUint32(err));
|
|
NS_WARNING(warnBuf);
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
if (atsMetrics.xHeight > 0)
|
|
mMetrics.xHeight = atsMetrics.xHeight * size;
|
|
else
|
|
mMetrics.xHeight = ::CGFontGetXHeight(mCGFont) * size / upem;
|
|
|
|
if (mAdjustedSize == 0.0f) {
|
|
if (mMetrics.xHeight != 0.0f && mStyle.sizeAdjust != 0.0f) {
|
|
gfxFloat aspect = mMetrics.xHeight / size;
|
|
mAdjustedSize = mStyle.GetAdjustedSize(aspect);
|
|
|
|
// the recursive call to InitMetrics will see the adjusted size,
|
|
// and set up the rest of the metrics fields accordingly
|
|
InitMetrics();
|
|
return;
|
|
}
|
|
mAdjustedSize = size;
|
|
}
|
|
|
|
mMetrics.superscriptOffset = mMetrics.xHeight;
|
|
mMetrics.subscriptOffset = mMetrics.xHeight;
|
|
mMetrics.underlineOffset = atsMetrics.underlinePosition * size;
|
|
mMetrics.underlineSize = atsMetrics.underlineThickness * size;
|
|
mMetrics.strikeoutSize = mMetrics.underlineSize;
|
|
mMetrics.strikeoutOffset = mMetrics.xHeight / 2;
|
|
|
|
mMetrics.externalLeading = atsMetrics.leading * size;
|
|
mMetrics.emHeight = size;
|
|
mMetrics.maxAscent =
|
|
NS_ceil(RoundToNearestMultiple(atsMetrics.ascent * size, 1/1024.0));
|
|
mMetrics.maxDescent =
|
|
NS_ceil(-RoundToNearestMultiple(atsMetrics.descent * size, 1/1024.0));
|
|
|
|
mMetrics.maxHeight = mMetrics.maxAscent + mMetrics.maxDescent;
|
|
if (mMetrics.maxHeight - mMetrics.emHeight > 0.0)
|
|
mMetrics.internalLeading = mMetrics.maxHeight - mMetrics.emHeight;
|
|
else
|
|
mMetrics.internalLeading = 0.0;
|
|
|
|
mMetrics.maxAdvance = atsMetrics.maxAdvanceWidth * size + mSyntheticBoldOffset;
|
|
|
|
mMetrics.emAscent = mMetrics.maxAscent * mMetrics.emHeight / mMetrics.maxHeight;
|
|
mMetrics.emDescent = mMetrics.emHeight - mMetrics.emAscent;
|
|
|
|
CFDataRef cmap =
|
|
::CGFontCopyTableForTag(mCGFont, TRUETYPE_TAG('c','m','a','p'));
|
|
|
|
PRUint32 glyphID;
|
|
gfxFloat xWidth = GetCharWidth(cmap, upem, size, 'x', &glyphID);
|
|
if (atsMetrics.avgAdvanceWidth != 0.0)
|
|
mMetrics.aveCharWidth = PR_MIN(atsMetrics.avgAdvanceWidth * size, xWidth);
|
|
else if (glyphID != 0)
|
|
mMetrics.aveCharWidth = xWidth;
|
|
else
|
|
mMetrics.aveCharWidth = mMetrics.maxAdvance;
|
|
mMetrics.aveCharWidth += mSyntheticBoldOffset;
|
|
|
|
if (mFontEntry->IsFixedPitch()) {
|
|
// Some Quartz fonts are fixed pitch, but there's some glyph with a bigger
|
|
// advance than the average character width... this forces
|
|
// those fonts to be recognized like fixed pitch fonts by layout.
|
|
mMetrics.maxAdvance = mMetrics.aveCharWidth;
|
|
}
|
|
|
|
mMetrics.spaceWidth = GetCharWidth(cmap, upem, size, ' ', &glyphID);
|
|
mSpaceGlyph = glyphID;
|
|
|
|
mMetrics.zeroOrAveCharWidth = GetCharWidth(cmap, upem, size, '0', &glyphID);
|
|
if (glyphID == 0)
|
|
mMetrics.zeroOrAveCharWidth = mMetrics.aveCharWidth;
|
|
|
|
if (cmap) {
|
|
::CFRelease(cmap);
|
|
}
|
|
|
|
mFUnitsConvFactor = mAdjustedSize / upem;
|
|
|
|
SanitizeMetrics(&mMetrics, mFontEntry->mIsBadUnderlineFont);
|
|
|
|
mIsValid = PR_TRUE;
|
|
|
|
#if 0
|
|
fprintf (stderr, "Font: %p (%s) size: %f\n", this,
|
|
NS_ConvertUTF16toUTF8(GetName()).get(), mStyle.size);
|
|
// fprintf (stderr, " fbounds.origin.x %f y %f size.width %f height %f\n", fbounds.origin.x, fbounds.origin.y, fbounds.size.width, fbounds.size.height);
|
|
fprintf (stderr, " emHeight: %f emAscent: %f emDescent: %f\n", mMetrics.emHeight, mMetrics.emAscent, mMetrics.emDescent);
|
|
fprintf (stderr, " maxAscent: %f maxDescent: %f maxAdvance: %f\n", mMetrics.maxAscent, mMetrics.maxDescent, mMetrics.maxAdvance);
|
|
fprintf (stderr, " internalLeading: %f externalLeading: %f\n", mMetrics.internalLeading, mMetrics.externalLeading);
|
|
fprintf (stderr, " spaceWidth: %f aveCharWidth: %f xHeight: %f\n", mMetrics.spaceWidth, mMetrics.aveCharWidth, mMetrics.xHeight);
|
|
fprintf (stderr, " uOff: %f uSize: %f stOff: %f stSize: %f supOff: %f subOff: %f\n", mMetrics.underlineOffset, mMetrics.underlineSize, mMetrics.strikeoutOffset, mMetrics.strikeoutSize, mMetrics.superscriptOffset, mMetrics.subscriptOffset);
|
|
#endif
|
|
}
|
|
|
|
gfxFloat
|
|
gfxMacFont::GetCharWidth(CFDataRef aCmap, PRUint32 aUpem, gfxFloat aSize,
|
|
PRUnichar aUniChar, PRUint32 *aGlyphID)
|
|
{
|
|
CGGlyph glyph = 0;
|
|
|
|
if (aCmap) {
|
|
glyph = gfxFontUtils::MapCharToGlyph(::CFDataGetBytePtr(aCmap),
|
|
::CFDataGetLength(aCmap),
|
|
aUniChar);
|
|
}
|
|
|
|
if (aGlyphID) {
|
|
*aGlyphID = glyph;
|
|
}
|
|
|
|
if (glyph) {
|
|
int advance;
|
|
if (::CGFontGetGlyphAdvances(mCGFont, &glyph, 1, &advance)) {
|
|
return advance * aSize / aUpem;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*static*/ void
|
|
gfxMacFont::DestroyBlobFunc(void* aUserData)
|
|
{
|
|
::CFRelease((CFDataRef)aUserData);
|
|
}
|
|
|
|
hb_blob_t *
|
|
gfxMacFont::GetFontTable(PRUint32 aTag)
|
|
{
|
|
CFDataRef dataRef = ::CGFontCopyTableForTag(mCGFont, aTag);
|
|
if (dataRef) {
|
|
return hb_blob_create((const char*)::CFDataGetBytePtr(dataRef),
|
|
::CFDataGetLength(dataRef),
|
|
HB_MEMORY_MODE_READONLY,
|
|
DestroyBlobFunc, (void*)dataRef);
|
|
}
|
|
|
|
return nsnull;
|
|
}
|