sky/engine updates for iOS targets

sky/engine/platform/fonts/ios/FontPlatformDataIOS.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.
+ */

[abarth-chromium, 2015/06/08 20:32:31]

Where does this copyright block come from?  We usually just use:

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

[Chinmay, 2015/06/08 20:36:21]

I used FontPlatformDataLinux as a template. Should I switch to use this instead?

+
+#include "base/logging.h"
+#include "sky/engine/config.h"

[abarth-chromium, 2015/06/08 20:32:31]

We always put config.h first, followed by the "primary header" (in this case
FontPlatformData.h), followed by a blank line, followed by the rest of the
headers sorted alpahbetaically.

[Chinmay, 2015/06/08 20:36:20]

Noted. Will fix.

+#include "sky/engine/platform/fonts/FontPlatformData.h"
+#include "sky/engine/platform/fonts/FontCache.h"
+
+namespace blink {
+
+void FontPlatformData::setupPaint(SkPaint* paint,
+                                  GraphicsContext* context) const {
+  paint->setAntiAlias(m_style.useAntiAlias);
+  paint->setHinting(static_cast<SkPaint::Hinting>(m_style.hintStyle));
+  paint->setEmbeddedBitmapText(m_style.useBitmaps);
+  paint->setAutohinted(m_style.useAutoHint);
+  if (m_style.useAntiAlias)
+    paint->setLCDRenderText(m_style.useSubpixelRendering);
+  paint->setSubpixelText(m_style.useSubpixelPositioning);
+  const float ts = m_textSize >= 0 ? m_textSize : 12;
+  paint->setTextSize(SkFloatToScalar(ts));
+  paint->setTypeface(m_typeface.get());
+  paint->setFakeBoldText(m_syntheticBold);
+  paint->setTextSkewX(m_syntheticItalic ? -SK_Scalar1 / 4 : 0);
+}
+
+void FontPlatformData::querySystemForRenderStyle(
+    bool useSkiaSubpixelPositioning) {
+  if (!m_style.useHinting)
+    m_style.hintStyle = SkPaint::kNo_Hinting;
+  else if (m_style.useHinting == FontRenderStyle::NoPreference)
+    m_style.hintStyle = SkPaint::kNormal_Hinting;
+  if (m_style.useBitmaps == FontRenderStyle::NoPreference)
+    m_style.useBitmaps = true;
+  if (m_style.useAutoHint == FontRenderStyle::NoPreference)
+    m_style.useAutoHint = true;
+  if (m_style.useAntiAlias == FontRenderStyle::NoPreference)
+    m_style.useAntiAlias = true;
+  if (m_style.useSubpixelRendering == FontRenderStyle::NoPreference)
+    m_style.useSubpixelRendering = false;
+  if (m_style.useSubpixelPositioning == FontRenderStyle::NoPreference)
+    m_style.useSubpixelPositioning = useSkiaSubpixelPositioning;
+}
+
+bool FontPlatformData::defaultUseSubpixelPositioning() {
+  return false;
+}
+
+void FontCache::getFontForCharacter(
+    UChar32 c,
+    const char* preferredLocale,
+    FontCache::PlatformFallbackFont* fallbackFont) {
+  DCHECK(false);
+}
+
+}  // namespace blink