flutter_flutter/sky/engine/platform/fonts/apple/FontPlatformDataApple.cpp

83 lines
3.4 KiB
C++

/*
* 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 "base/logging.h"
#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