Merge FontPlatformDataHarfBuzz into FontPlatformData

Source/platform/fonts/harfbuzz/FontPlatformDataHarfBuzz.cpp

-/*
- * Copyright (c) 2006, 2007, 2008, 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.
- */
-
-#include "config.h"
-#include "platform/fonts/FontPlatformData.h"
-
-#include "SkTypeface.h"
-#include "platform/fonts/harfbuzz/HarfBuzzFace.h"
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-
-FontPlatformData::FontPlatformData(WTF::HashTableDeletedValueType)
-    : m_textSize(0)
-    , m_syntheticBold(false)
-    , m_syntheticItalic(false)
-    , m_orientation(Horizontal)
-    , m_isHashTableDeletedValue(true)
-#if OS(WIN)
-    , m_paintTextFlags(0)
-    , m_minSizeForAntiAlias(0)
-    , m_minSizeForSubpixel(0)
-    , m_useSubpixelPositioning(false)
-#endif
-{
-}
-
-FontPlatformData::FontPlatformData()
-    : m_textSize(0)
-    , m_syntheticBold(false)
-    , m_syntheticItalic(false)
-    , m_orientation(Horizontal)
-    , m_isHashTableDeletedValue(false)
-#if OS(WIN)
-    , m_paintTextFlags(0)
-    , m_minSizeForAntiAlias(0)
-    , m_minSizeForSubpixel(0)
-    , m_useSubpixelPositioning(false)
-#endif
-{
-}
-
-FontPlatformData::FontPlatformData(float textSize, bool syntheticBold, bool syntheticItalic)
-    : m_textSize(textSize)
-    , m_syntheticBold(syntheticBold)
-    , m_syntheticItalic(syntheticItalic)
-    , m_orientation(Horizontal)
-    , m_isHashTableDeletedValue(false)
-#if OS(WIN)
-    , m_paintTextFlags(0)
-    , m_minSizeForAntiAlias(0)
-    , m_minSizeForSubpixel(0)
-    , m_useSubpixelPositioning(false)
-#endif
-{
-}
-
-FontPlatformData::FontPlatformData(const FontPlatformData& src)
-    : m_typeface(src.m_typeface)
-#if !OS(WIN)
-    , m_family(src.m_family)
-#endif
-    , m_textSize(src.m_textSize)
-    , m_syntheticBold(src.m_syntheticBold)
-    , m_syntheticItalic(src.m_syntheticItalic)
-    , m_orientation(src.m_orientation)
-    , m_style(src.m_style)
-    , m_harfBuzzFace(nullptr)
-    , m_isHashTableDeletedValue(false)
-#if OS(WIN)
-    , m_paintTextFlags(src.m_paintTextFlags)
-    , m_minSizeForAntiAlias(src.m_minSizeForAntiAlias)
-    , m_minSizeForSubpixel(src.m_minSizeForSubpixel)
-    , m_useSubpixelPositioning(src.m_useSubpixelPositioning)
-#endif
-{
-}
-
-FontPlatformData::FontPlatformData(PassRefPtr<SkTypeface> tf, const char* family, float textSize, bool syntheticBold, bool syntheticItalic, FontOrientation orientation, bool subpixelTextPosition)
-    : m_typeface(tf)
-#if !OS(WIN)
-    , m_family(family)
-#endif
-    , m_textSize(textSize)
-    , m_syntheticBold(syntheticBold)
-    , m_syntheticItalic(syntheticItalic)
-    , m_orientation(orientation)
-    , m_isHashTableDeletedValue(false)
-#if OS(WIN)
-    , m_paintTextFlags(0)
-    , m_minSizeForAntiAlias(0)
-    , m_minSizeForSubpixel(0)
-    , m_useSubpixelPositioning(subpixelTextPosition)
-#endif
-{
-    querySystemForRenderStyle(subpixelTextPosition);
-}
-
-FontPlatformData::FontPlatformData(const FontPlatformData& src, float textSize)
-    : m_typeface(src.m_typeface)
-#if !OS(WIN)
-    , m_family(src.m_family)
-#endif
-    , m_textSize(textSize)
-    , m_syntheticBold(src.m_syntheticBold)
-    , m_syntheticItalic(src.m_syntheticItalic)
-    , m_orientation(src.m_orientation)
-    , m_harfBuzzFace(nullptr)
-    , m_isHashTableDeletedValue(false)
-#if OS(WIN)
-    , m_paintTextFlags(src.m_paintTextFlags)
-    , m_minSizeForAntiAlias(src.m_minSizeForAntiAlias)
-    , m_minSizeForSubpixel(src.m_minSizeForSubpixel)
-    , m_useSubpixelPositioning(src.m_useSubpixelPositioning)
-#endif
-{
-    querySystemForRenderStyle(FontDescription::subpixelPositioning());
-}
-
-FontPlatformData::~FontPlatformData()
-{
-}
-
-const FontPlatformData& FontPlatformData::operator=(const FontPlatformData& src)
-{
-    m_typeface = src.m_typeface;
-#if !OS(WIN)
-    m_family = src.m_family;
-#endif
-    m_textSize = src.m_textSize;
-    m_syntheticBold = src.m_syntheticBold;
-    m_syntheticItalic = src.m_syntheticItalic;
-    m_harfBuzzFace = nullptr;
-    m_orientation = src.m_orientation;
-    m_style = src.m_style;
-#if OS(WIN)
-    m_paintTextFlags = 0;
-    m_minSizeForAntiAlias = src.m_minSizeForAntiAlias;
-    m_minSizeForSubpixel = src.m_minSizeForSubpixel;
-    m_useSubpixelPositioning = src.m_useSubpixelPositioning;
-#endif
-
-    return *this;
-}
-
-SkFontID FontPlatformData::uniqueID() const
-{
-    return m_typeface->uniqueID();
-}
-
-String FontPlatformData::fontFamilyName() const
-{
-    // FIXME(crbug.com/326582): come up with a proper way of handling SVG.
-    if (!this->typeface())
-        return "";
-    SkTypeface::LocalizedStrings* fontFamilyIterator = this->typeface()->createFamilyNameIterator();
-    SkTypeface::LocalizedString localizedString;
-    while (fontFamilyIterator->next(&localizedString) && !localizedString.fString.size()) { }
-    fontFamilyIterator->unref();
-    return String(localizedString.fString.c_str());
-}
-
-bool FontPlatformData::operator==(const FontPlatformData& a) const
-{
-    // If either of the typeface pointers are null then we test for pointer
-    // equality. Otherwise, we call SkTypeface::Equal on the valid pointers.
-    bool typefacesEqual;
-    if (!m_typeface || !a.m_typeface)
-        typefacesEqual = m_typeface == a.m_typeface;
-    else
-        typefacesEqual = SkTypeface::Equal(m_typeface.get(), a.m_typeface.get());
-
-    return typefacesEqual
-        && m_textSize == a.m_textSize
-        && m_syntheticBold == a.m_syntheticBold
-        && m_syntheticItalic == a.m_syntheticItalic
-        && m_orientation == a.m_orientation
-        && m_style == a.m_style
-        && m_isHashTableDeletedValue == a.m_isHashTableDeletedValue;
-}
-
-bool FontPlatformData::isFixedPitch() const
-{
-    return typeface() && typeface()->isFixedPitch();
-}
-
-SkTypeface* FontPlatformData::typeface() const
-{
-    return m_typeface.get();
-}
-
-HarfBuzzFace* FontPlatformData::harfBuzzFace() const
-{
-    if (!m_harfBuzzFace)
-        m_harfBuzzFace = HarfBuzzFace::create(const_cast<FontPlatformData*>(this), uniqueID());
-
-    return m_harfBuzzFace.get();
-}
-
-} // namespace blink