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| 1 /* | |
| 2 * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * This library is free software; you can redistribute it and/or | |
| 5 * modify it under the terms of the GNU Library General Public | |
| 6 * License as published by the Free Software Foundation; either | |
| 7 * version 2 of the License, or (at your option) any later version. | |
| 8 * | |
| 9 * This library is distributed in the hope that it will be useful, | |
| 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 * Library General Public License for more details. | |
| 13 * | |
| 14 * You should have received a copy of the GNU Library General Public License | |
| 15 * along with this library; see the file COPYING.LIB. If not, write to | |
| 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 17 * Boston, MA 02110-1301, USA. | |
| 18 * | |
| 19 */ | |
| 20 | |
| 21 #include "config.h" | |
| 22 #include "FontCustomPlatformData.h" | |
| 23 | |
| 24 #include "FontPlatformData.h" | |
| 25 #include "OpenTypeUtilities.h" | |
| 26 #include "SharedBuffer.h" | |
| 27 #include "WOFFFileFormat.h" | |
| 28 #include <ApplicationServices/ApplicationServices.h> | |
| 29 #include <WebKitSystemInterface/WebKitSystemInterface.h> | |
| 30 #include <wtf/RetainPtr.h> | |
| 31 #include <wtf/text/Base64.h> | |
| 32 | |
| 33 namespace WebCore { | |
| 34 | |
| 35 using namespace std; | |
| 36 | |
| 37 FontCustomPlatformData::~FontCustomPlatformData() | |
| 38 { | |
| 39 if (m_fontReference) | |
| 40 RemoveFontMemResourceEx(m_fontReference); | |
| 41 } | |
| 42 | |
| 43 FontPlatformData FontCustomPlatformData::fontPlatformData(int size, bool bold, b
ool italic, FontOrientation, FontWidthVariant, FontRenderingMode renderingMode) | |
| 44 { | |
| 45 ASSERT(m_fontReference); | |
| 46 | |
| 47 LOGFONT& logFont = *static_cast<LOGFONT*>(malloc(sizeof(LOGFONT))); | |
| 48 memcpy(logFont.lfFaceName, m_name.charactersWithNullTermination(), sizeof(lo
gFont.lfFaceName[0]) * min(static_cast<size_t>(LF_FACESIZE), 1 + m_name.length()
)); | |
| 49 | |
| 50 logFont.lfHeight = -size; | |
| 51 if (renderingMode == NormalRenderingMode) | |
| 52 logFont.lfHeight *= 32; | |
| 53 logFont.lfWidth = 0; | |
| 54 logFont.lfEscapement = 0; | |
| 55 logFont.lfOrientation = 0; | |
| 56 logFont.lfUnderline = false; | |
| 57 logFont.lfStrikeOut = false; | |
| 58 logFont.lfCharSet = DEFAULT_CHARSET; | |
| 59 logFont.lfOutPrecision = OUT_TT_ONLY_PRECIS; | |
| 60 logFont.lfQuality = CLEARTYPE_QUALITY; | |
| 61 logFont.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE; | |
| 62 logFont.lfItalic = italic; | |
| 63 logFont.lfWeight = bold ? 700 : 400; | |
| 64 | |
| 65 HFONT hfont = CreateFontIndirect(&logFont); | |
| 66 | |
| 67 RetainPtr<CGFontRef> cgFont(AdoptCF, CGFontCreateWithPlatformFont(&logFont))
; | |
| 68 return FontPlatformData(hfont, cgFont.get(), size, bold, italic, renderingMo
de == AlternateRenderingMode); | |
| 69 } | |
| 70 | |
| 71 // Creates a unique and unpredictable font name, in order to avoid collisions an
d to | |
| 72 // not allow access from CSS. | |
| 73 static String createUniqueFontName() | |
| 74 { | |
| 75 GUID fontUuid; | |
| 76 CoCreateGuid(&fontUuid); | |
| 77 | |
| 78 String fontName = base64Encode(reinterpret_cast<char*>(&fontUuid), sizeof(fo
ntUuid)); | |
| 79 ASSERT(fontName.length() < LF_FACESIZE); | |
| 80 return fontName; | |
| 81 } | |
| 82 | |
| 83 FontCustomPlatformData* createFontCustomPlatformData(SharedBuffer* buffer) | |
| 84 { | |
| 85 ASSERT_ARG(buffer, buffer); | |
| 86 | |
| 87 RefPtr<SharedBuffer> sfntBuffer; | |
| 88 if (isWOFF(buffer)) { | |
| 89 Vector<char> sfnt; | |
| 90 if (!convertWOFFToSfnt(buffer, sfnt)) | |
| 91 return 0; | |
| 92 | |
| 93 sfntBuffer = SharedBuffer::adoptVector(sfnt); | |
| 94 buffer = sfntBuffer.get(); | |
| 95 } | |
| 96 | |
| 97 String fontName = createUniqueFontName(); | |
| 98 HANDLE fontReference; | |
| 99 fontReference = renameAndActivateFont(buffer, fontName); | |
| 100 if (!fontReference) | |
| 101 return 0; | |
| 102 return new FontCustomPlatformData(fontReference, fontName); | |
| 103 } | |
| 104 | |
| 105 bool FontCustomPlatformData::supportsFormat(const String& format) | |
| 106 { | |
| 107 return equalIgnoringCase(format, "truetype") || equalIgnoringCase(format, "o
pentype") || equalIgnoringCase(format, "woff"); | |
| 108 } | |
| 109 | |
| 110 } | |
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