Revert "Merge FontPlatformDataHarfBuzz into FontPlatformData"

Source/platform/fonts/FontPlatformData.cpp

 /*
  * Copyright (C) 2011 Brent Fulgham
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #include "config.h"
 #include "platform/fonts/FontPlatformData.h"
 
 #include "SkTypeface.h"
 #include "platform/fonts/harfbuzz/HarfBuzzFace.h"
 #include "wtf/HashMap.h"
 #include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
-#if OS(MACOSX)
-#include "third_party/skia/include/ports/SkTypeface_mac.h"
-#endif
-
 using namespace std;
 
 namespace blink {
 
 FontPlatformData::FontPlatformData(WTF::HashTableDeletedValueType)
-    : m_typeface(nullptr)
-#if !OS(WIN)
-    , m_family(CString())
-#endif
-    , m_textSize(0)
+    : m_textSize(0)
     , m_syntheticBold(false)
     , m_syntheticItalic(false)
     , m_orientation(Horizontal)
-#if OS(MACOSX)
     , m_isColorBitmapFont(false)
     , m_isCompositeFontReference(false)
-#endif
     , m_widthVariant(RegularWidth)
 #if OS(MACOSX)
     , m_font(nullptr)
 #endif
     , m_isHashTableDeletedValue(true)
-#if OS(WIN)
-    , m_paintTextFlags(0)
-    , m_minSizeForAntiAlias(0)
-    , m_minSizeForSubpixel(0)
-    , m_useSubpixelPositioning(false)
-#endif
 {
 }
 
 FontPlatformData::FontPlatformData()
-    : m_typeface(nullptr)
-#if !OS(WIN)
-    , m_family(CString())
-#endif
-    , m_textSize(0)
+    : m_textSize(0)
     , m_syntheticBold(false)
     , m_syntheticItalic(false)
     , m_orientation(Horizontal)
-#if OS(MACOSX)
     , m_isColorBitmapFont(false)
     , m_isCompositeFontReference(false)
-#endif
     , m_widthVariant(RegularWidth)
 #if OS(MACOSX)
     , m_font(nullptr)
 #endif
     , m_isHashTableDeletedValue(false)
-#if OS(WIN)
-    , m_paintTextFlags(0)
-    , m_minSizeForAntiAlias(0)
-    , m_minSizeForSubpixel(0)
-    , m_useSubpixelPositioning(false)
-#endif
 {
 }
 
 FontPlatformData::FontPlatformData(float size, bool syntheticBold, bool syntheticItalic, FontOrientation orientation, FontWidthVariant widthVariant)
-    : m_typeface(nullptr)
-#if !OS(WIN)
-    , m_family(CString())
-#endif
-    , m_textSize(size)
+    : m_textSize(size)
     , m_syntheticBold(syntheticBold)
     , m_syntheticItalic(syntheticItalic)
     , m_orientation(orientation)
-#if OS(MACOSX)
     , m_isColorBitmapFont(false)
     , m_isCompositeFontReference(false)
-#endif
     , m_widthVariant(widthVariant)
 #if OS(MACOSX)
     , m_font(nullptr)
 #endif
     , m_isHashTableDeletedValue(false)
-#if OS(WIN)
-    , m_paintTextFlags(0)
-    , m_minSizeForAntiAlias(0)
-    , m_minSizeForSubpixel(0)
-    , m_useSubpixelPositioning(false)
-#endif
 {
 }
 
-FontPlatformData::FontPlatformData(const FontPlatformData& source)
-    : m_typeface(source.m_typeface)
-#if !OS(WIN)
-    , m_family(source.m_family)
-#endif
-    , m_textSize(source.m_textSize)
-    , m_syntheticBold(source.m_syntheticBold)
-    , m_syntheticItalic(source.m_syntheticItalic)
-    , m_orientation(source.m_orientation)
-#if OS(MACOSX)
-    , m_isColorBitmapFont(source.m_isColorBitmapFont)
-    , m_isCompositeFontReference(source.m_isCompositeFontReference)
-#endif
-    , m_widthVariant(source.m_widthVariant)
-#if !OS(MACOSX)
-    , m_style(source.m_style)
-#endif
-    , m_harfBuzzFace(nullptr)
-    , m_isHashTableDeletedValue(false)
-#if OS(WIN)
-    , m_paintTextFlags(source.m_paintTextFlags)
-    , m_minSizeForAntiAlias(source.m_minSizeForAntiAlias)
-    , m_minSizeForSubpixel(source.m_minSizeForSubpixel)
-    , m_useSubpixelPositioning(source.m_useSubpixelPositioning)
-#endif
-{
-#if OS(MACOSX)
-    platformDataInit(source);
-#endif
-}
-
-
 #if OS(MACOSX)
 FontPlatformData::FontPlatformData(CGFontRef cgFont, float size, bool syntheticBold, bool syntheticItalic, FontOrientation orientation, FontWidthVariant widthVariant)
-    : m_typeface(nullptr)
-#if !OS(WIN)
-    , m_family(CString())
-#endif
-    , m_textSize(size)
+    : m_textSize(size)
     , m_syntheticBold(syntheticBold)
     , m_syntheticItalic(syntheticItalic)
     , m_orientation(orientation)
     , m_isColorBitmapFont(false)
     , m_isCompositeFontReference(false)
     , m_widthVariant(widthVariant)
     , m_font(nullptr)
     , m_cgFont(cgFont)
     , m_isHashTableDeletedValue(false)
 {
 }
-
-#else
-
-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());
-}
 #endif
 
-FontPlatformData::~FontPlatformData()
+FontPlatformData::FontPlatformData(const FontPlatformData& source)
+    : m_textSize(source.m_textSize)
+    , m_syntheticBold(source.m_syntheticBold)
+    , m_syntheticItalic(source.m_syntheticItalic)
+    , m_orientation(source.m_orientation)
+    , m_isColorBitmapFont(source.m_isColorBitmapFont)
+    , m_isCompositeFontReference(source.m_isCompositeFontReference)
+    , m_widthVariant(source.m_widthVariant)
+    , m_isHashTableDeletedValue(false)
 {
-#if OS(MACOSX)
-    if (m_font)
-        CFRelease(m_font);
-#endif
+    platformDataInit(source);
 }
 
 const FontPlatformData& FontPlatformData::operator=(const FontPlatformData& other)
 {
     // Check for self-assignment.
     if (this == &other)
         return *this;
 
-    m_typeface = other.m_typeface;
-#if !OS(WIN)
-    m_family = other.m_family;
-#endif
-    m_textSize = other.m_textSize;
     m_syntheticBold = other.m_syntheticBold;
     m_syntheticItalic = other.m_syntheticItalic;
-    m_harfBuzzFace = nullptr;
     m_orientation = other.m_orientation;
+    m_textSize = other.m_textSize;
     m_widthVariant = other.m_widthVariant;
-#if OS(MACOSX)
     m_isColorBitmapFont = other.m_isColorBitmapFont;
     m_isCompositeFontReference = other.m_isCompositeFontReference;
-#else
-    m_style = other.m_style;
-#endif
-    m_widthVariant = other.m_widthVariant;
 
-#if OS(WIN)
-    m_paintTextFlags = 0;
-    m_minSizeForAntiAlias = other.m_minSizeForAntiAlias;
-    m_minSizeForSubpixel = other.m_minSizeForSubpixel;
-    m_useSubpixelPositioning = other.m_useSubpixelPositioning;
-#endif
-
-#if OS(MACOSX)
     return platformDataAssign(other);
-#else
-    return *this;
-#endif
 }
 
 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 = false;
-#if !OS(MACOSX)
-    if (!m_typeface || !a.m_typeface)
-        typefacesEqual = m_typeface == a.m_typeface;
-    else
-        typefacesEqual = SkTypeface::Equal(m_typeface.get(), a.m_typeface.get());
-#else
-    if (m_font || a.m_font)
-        typefacesEqual = m_font == a.m_font;
-    else
-        typefacesEqual = m_cgFont == a.m_cgFont;
-#endif
 
-    return typefacesEqual
+    return platformIsEqual(a)
         && m_textSize == a.m_textSize
         && m_isHashTableDeletedValue == a.m_isHashTableDeletedValue
         && m_syntheticBold == a.m_syntheticBold
         && m_syntheticItalic == a.m_syntheticItalic
         && m_orientation == a.m_orientation
 #if !OS(MACOSX)
         && m_style == a.m_style
-#else
+#endif
         && m_isColorBitmapFont == a.m_isColorBitmapFont
         && m_isCompositeFontReference == a.m_isCompositeFontReference
-#endif
         && m_widthVariant == a.m_widthVariant;
 }
 
-SkFontID FontPlatformData::uniqueID() const
-{
-    return 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::isFixedPitch() const
-{
-    return typeface() && typeface()->isFixedPitch();
-}
-
-SkTypeface* FontPlatformData::typeface() const
-{
-#if OS(MACOSX)
-    if (!m_typeface)
-        m_typeface = adoptRef(SkCreateTypefaceFromCTFont(ctFont()));
-#endif
-    return m_typeface.get();
-}
-
-HarfBuzzFace* FontPlatformData::harfBuzzFace() const
-{
-#if OS(MACOSX)
-    CTFontRef font = ctFont();
-    // Keeping the decision not to pass AAT font to HarfBuzz for now,
-    // until we switch to HarfBuzz as a shaper for all cases.
-    if (isAATFont(font))
-        return 0;
-#endif
-    if (!m_harfBuzzFace)
-        m_harfBuzzFace = HarfBuzzFace::create(const_cast<FontPlatformData*>(this), uniqueID());
-
-    return m_harfBuzzFace.get();
-}
 
 } // namespace blink