Revert "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