/* * Copyright (C) 2006 Kevin Ollivier All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 FontPlatformData_H #define FontPlatformData_H #include "FontDescription.h" #include "CString.h" #include "AtomicString.h" #include "StringImpl.h" #include <wx/defs.h> #include <wx/font.h> namespace WebCore { class FontPlatformData { public: enum FontState { UNINITIALIZED, DELETED, VALID }; FontPlatformData(WTF::HashTableDeletedValueType) : m_fontState(DELETED) { } ~FontPlatformData(); FontPlatformData(wxFont f) : m_font(f) , m_fontState(VALID) { m_fontHash = computeHash(); } FontPlatformData(const FontDescription&, const AtomicString&); FontPlatformData() : m_fontState(UNINITIALIZED) { } wxFont font() const { return m_font; } unsigned hash() const { switch (m_fontState) { case DELETED: return -1; case UNINITIALIZED: return 0; case VALID: return computeHash(); } } bool operator==(const FontPlatformData& other) const { if (m_fontState == VALID) return other.m_fontState == VALID && m_font.IsOk() && other.m_font.IsOk() && m_font.IsSameAs(other.m_font); else return m_fontState == other.m_fontState; } bool isHashTableDeletedValue() const { return m_fontState == DELETED; } unsigned computeHash() const { ASSERT(m_font.IsOk()); // make a hash that is unique for this font, but not globally unique - that is, // a font whose properties are equal should generate the same hash uintptr_t hashCodes[6] = { m_font.GetPointSize(), m_font.GetFamily(), m_font.GetStyle(), m_font.GetWeight(), m_font.GetUnderlined(), StringImpl::computeHash(m_font.GetFaceName().mb_str(wxConvUTF8)) }; return StringImpl::computeHash(reinterpret_cast<UChar*>(hashCodes), sizeof(hashCodes) / sizeof(UChar)); } private: wxFont m_font; FontState m_fontState; unsigned m_fontHash; }; } #endif