1/* 2 * Copyright (C) 2007, 2008 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef CachedFont_h 27#define CachedFont_h 28 29#include "CachedResource.h" 30#include "FontOrientation.h" 31#include "FontRenderingMode.h" 32#include "FontWidthVariant.h" 33#include "TextOrientation.h" 34#include <wtf/Vector.h> 35 36#if ENABLE(SVG_FONTS) 37#include "SVGElement.h" 38#include "SVGDocument.h" 39#endif 40 41namespace WebCore { 42 43class CachedResourceLoader; 44class MemoryCache; 45class FontPlatformData; 46class SVGFontElement; 47 48struct FontCustomPlatformData; 49 50class CachedFont : public CachedResource { 51public: 52 CachedFont(const String& url); 53 virtual ~CachedFont(); 54 55 virtual void load(CachedResourceLoader* cachedResourceLoader); 56 57 virtual void didAddClient(CachedResourceClient*); 58 virtual void data(PassRefPtr<SharedBuffer> data, bool allDataReceived); 59 virtual void error(CachedResource::Status); 60 61 virtual void allClientsRemoved(); 62 63 void checkNotify(); 64 65 void beginLoadIfNeeded(CachedResourceLoader* dl); 66 67 bool ensureCustomFontData(); 68 FontPlatformData platformDataFromCustomData(float size, bool bold, bool italic, FontOrientation = Horizontal, TextOrientation = TextOrientationVerticalRight, FontWidthVariant = RegularWidth, FontRenderingMode = NormalRenderingMode); 69 70#if ENABLE(SVG_FONTS) 71 bool ensureSVGFontData(); 72 SVGFontElement* getSVGFontById(const String&) const; 73#endif 74 75private: 76 FontCustomPlatformData* m_fontData; 77 bool m_loadInitiated; 78 79#if ENABLE(SVG_FONTS) 80 RefPtr<SVGDocument> m_externalSVGDocument; 81#endif 82 83 friend class MemoryCache; 84}; 85 86} 87 88#endif 89