1 /* 2 * Copyright (c) 2012 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef HarfBuzzFace_h 32 #define HarfBuzzFace_h 33 34 #include <hb.h> 35 36 #include "wtf/HashMap.h" 37 #include "wtf/PassRefPtr.h" 38 #include "wtf/RefCounted.h" 39 #include "wtf/RefPtr.h" 40 41 namespace WebCore { 42 43 class FontPlatformData; 44 45 class HarfBuzzFace : public RefCounted<HarfBuzzFace> { 46 public: 47 static const hb_tag_t vertTag; 48 static const hb_tag_t vrt2Tag; 49 50 static PassRefPtr<HarfBuzzFace> create(FontPlatformData* platformData, uint64_t uniqueID) 51 { 52 return adoptRef(new HarfBuzzFace(platformData, uniqueID)); 53 } 54 ~HarfBuzzFace(); 55 56 hb_font_t* createFont(); 57 58 void setScriptForVerticalGlyphSubstitution(hb_buffer_t*); 59 60 private: 61 HarfBuzzFace(FontPlatformData*, uint64_t); 62 63 hb_face_t* createFace(); 64 65 FontPlatformData* m_platformData; 66 uint64_t m_uniqueID; 67 hb_face_t* m_face; 68 WTF::HashMap<uint32_t, uint16_t>* m_glyphCacheForFaceCacheEntry; 69 70 hb_script_t m_scriptForVerticalText; 71 }; 72 73 } 74 75 #endif // HarfBuzzFace_h 76
