| /* |
| * Copyright (c) 2009, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef FontFaceCreationParams_h |
| #define FontFaceCreationParams_h |
| |
| #include "wtf/Assertions.h" |
| #include "wtf/StringHasher.h" |
| #include "wtf/text/AtomicString.h" |
| #include "wtf/text/StringHash.h" |
| |
| namespace blink { |
| |
| enum FontFaceCreationType { |
| CreateFontByFamily, |
| CreateFontByFciIdAndTtcIndex |
| }; |
| |
| class FontFaceCreationParams { |
| FontFaceCreationType m_creationType; |
| AtomicString m_family; |
| CString m_filename; |
| int m_fontconfigInterfaceId; |
| int m_ttcIndex; |
| |
| public: |
| FontFaceCreationParams() |
| : m_creationType(CreateFontByFamily), m_family(AtomicString()), m_filename(CString()), m_fontconfigInterfaceId(0), m_ttcIndex(0) |
| { |
| } |
| |
| explicit FontFaceCreationParams(AtomicString family) |
| : m_creationType(CreateFontByFamily), m_family(family), m_filename(CString()), m_fontconfigInterfaceId(0), m_ttcIndex(0) |
| { |
| #if OS(WIN) && ENABLE(OPENTYPE_VERTICAL) |
| // Leading "@" in the font name enables Windows vertical flow flag for the font. |
| // Because we do vertical flow by ourselves, we don't want to use the Windows feature. |
| // IE disregards "@" regardless of the orientation, so we follow the behavior and |
| // normalize the family name. |
| m_family = (m_family.isEmpty() || m_family[0] != '@') ? m_family : AtomicString(m_family.impl()->substring(1)); |
| #endif |
| } |
| |
| FontFaceCreationParams(CString filename, int fontconfigInterfaceId, int ttcIndex = 0) |
| : m_creationType(CreateFontByFciIdAndTtcIndex), m_filename(filename), m_fontconfigInterfaceId(fontconfigInterfaceId), m_ttcIndex(ttcIndex) |
| { |
| } |
| |
| FontFaceCreationType creationType() const { return m_creationType; } |
| AtomicString family() const |
| { |
| ASSERT(m_creationType == CreateFontByFamily); |
| return m_family; |
| } |
| CString filename() const |
| { |
| ASSERT(m_creationType == CreateFontByFciIdAndTtcIndex); |
| return m_filename; |
| } |
| int fontconfigInterfaceId() const |
| { |
| ASSERT(m_creationType == CreateFontByFciIdAndTtcIndex); |
| return m_fontconfigInterfaceId; |
| } |
| int ttcIndex() const |
| { |
| ASSERT(m_creationType == CreateFontByFciIdAndTtcIndex); |
| return m_ttcIndex; |
| } |
| |
| unsigned hash() const |
| { |
| if (m_creationType == CreateFontByFciIdAndTtcIndex) { |
| StringHasher hasher; |
| // Hashing the filename and ints in this way is sensitive to character encoding |
| // and endianness. However, since the hash is not transferred over a network |
| // or permanently stored and only used for the runtime of Chromium, |
| // this is not a concern. |
| hasher.addCharacters(reinterpret_cast<const LChar*>(m_filename.data()), m_filename.length()); |
| hasher.addCharacters(reinterpret_cast<const LChar*>(&m_ttcIndex), sizeof(m_ttcIndex)); |
| hasher.addCharacters(reinterpret_cast<const LChar*>(&m_fontconfigInterfaceId), sizeof(m_fontconfigInterfaceId)); |
| return hasher.hash(); |
| } |
| return CaseFoldingHash::hash(m_family.isEmpty() ? "" : m_family); |
| } |
| |
| bool operator==(const FontFaceCreationParams& other) const |
| { |
| return m_creationType == other.m_creationType |
| && equalIgnoringCase(m_family, other.m_family) |
| && m_filename == other.m_filename |
| && m_fontconfigInterfaceId == other.m_fontconfigInterfaceId |
| && m_ttcIndex == other.m_ttcIndex; |
| } |
| |
| }; |
| |
| } // namespace blink |
| |
| #endif // FontFaceCreationParams_h |