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b4377c93dd
This complex machinery made sense for Blink, which has hundreds of developers. In our case, we're just moving around two bools. We can do that in a much simpler way.
146 lines
5.6 KiB
C++
146 lines
5.6 KiB
C++
/*
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* Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/public/platform/Platform.h"
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#include "sky/engine/platform/LayoutTestSupport.h"
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#include "sky/engine/platform/fonts/FontPlatformData.h"
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#include "sky/engine/platform/graphics/GraphicsContext.h"
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#include "sky/engine/public/platform/linux/WebFontRenderStyle.h"
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#include "sky/engine/public/platform/linux/WebSandboxSupport.h"
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#include "third_party/skia/include/core/SkTypeface.h"
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namespace blink {
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static SkPaint::Hinting skiaHinting = SkPaint::kNormal_Hinting;
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static bool useSkiaAutoHint = true;
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static bool useSkiaBitmaps = true;
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static bool useSkiaAntiAlias = true;
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static bool useSkiaSubpixelRendering = false;
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void FontPlatformData::setHinting(SkPaint::Hinting hinting)
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{
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skiaHinting = hinting;
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}
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void FontPlatformData::setAutoHint(bool useAutoHint)
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{
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useSkiaAutoHint = useAutoHint;
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}
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void FontPlatformData::setUseBitmaps(bool useBitmaps)
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{
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useSkiaBitmaps = useBitmaps;
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}
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void FontPlatformData::setAntiAlias(bool useAntiAlias)
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{
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useSkiaAntiAlias = useAntiAlias;
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}
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void FontPlatformData::setSubpixelRendering(bool useSubpixelRendering)
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{
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useSkiaSubpixelRendering = useSubpixelRendering;
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}
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void FontPlatformData::setupPaint(SkPaint* paint, GraphicsContext* context)
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const
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{
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paint->setAntiAlias(m_style.useAntiAlias);
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paint->setHinting(static_cast<SkPaint::Hinting>(m_style.hintStyle));
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paint->setEmbeddedBitmapText(m_style.useBitmaps);
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paint->setAutohinted(m_style.useAutoHint);
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if (m_style.useAntiAlias)
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paint->setLCDRenderText(m_style.useSubpixelRendering);
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// Do not enable subpixel text on low-dpi if full hinting is requested.
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bool useSubpixelText = paint->getHinting() != SkPaint::kFull_Hinting
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|| (context && context->deviceScaleFactor() > 1.0f);
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// TestRunner specifically toggles the subpixel positioning flag.
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if (useSubpixelText && !LayoutTestSupport::isRunningLayoutTest())
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paint->setSubpixelText(true);
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else
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paint->setSubpixelText(m_style.useSubpixelPositioning);
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const float ts = m_textSize >= 0 ? m_textSize : 12;
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paint->setTextSize(SkFloatToScalar(ts));
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paint->setTypeface(m_typeface.get());
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paint->setFakeBoldText(m_syntheticBold);
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paint->setTextSkewX(m_syntheticItalic ? -SK_Scalar1 / 4 : 0);
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}
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void FontPlatformData::querySystemForRenderStyle(bool useSkiaSubpixelPositioning)
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{
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WebFontRenderStyle style;
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#if OS(ANDROID)
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style.setDefaults();
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#else
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// If the font name is missing (i.e. probably a web font) or the sandbox is disabled, use the system defaults.
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if (!m_family.length() || !Platform::current()->sandboxSupport()) {
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style.setDefaults();
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} else {
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const int sizeAndStyle = (((int)m_textSize) << 2) | (m_typeface->style() & 3);
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Platform::current()->sandboxSupport()->getRenderStyleForStrike(m_family.data(), sizeAndStyle, &style);
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}
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#endif
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style.toFontRenderStyle(&m_style);
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// Fix FontRenderStyle::NoPreference to actual styles.
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if (m_style.useAntiAlias == FontRenderStyle::NoPreference)
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m_style.useAntiAlias = useSkiaAntiAlias;
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if (!m_style.useHinting)
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m_style.hintStyle = SkPaint::kNo_Hinting;
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else if (m_style.useHinting == FontRenderStyle::NoPreference)
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m_style.hintStyle = skiaHinting;
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if (m_style.useBitmaps == FontRenderStyle::NoPreference)
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m_style.useBitmaps = useSkiaBitmaps;
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if (m_style.useAutoHint == FontRenderStyle::NoPreference)
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m_style.useAutoHint = useSkiaAutoHint;
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if (m_style.useAntiAlias == FontRenderStyle::NoPreference)
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m_style.useAntiAlias = useSkiaAntiAlias;
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if (m_style.useSubpixelRendering == FontRenderStyle::NoPreference)
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m_style.useSubpixelRendering = useSkiaSubpixelRendering;
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// TestRunner specifically toggles the subpixel positioning flag.
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if (m_style.useSubpixelPositioning == FontRenderStyle::NoPreference
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|| LayoutTestSupport::isRunningLayoutTest())
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m_style.useSubpixelPositioning = useSkiaSubpixelPositioning;
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}
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bool FontPlatformData::defaultUseSubpixelPositioning()
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{
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return FontDescription::subpixelPositioning();
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}
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} // namespace blink
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