From 40736c5763bf61337c8c14e16d8587db021a87d4 Mon Sep 17 00:00:00 2001 From: Simon Hausmann Date: Fri, 6 Jan 2012 14:44:00 +0100 Subject: Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285) --- Source/WebKit2/UIProcess/FindIndicator.cpp | 212 +++++++++++++++++++++++++++++ 1 file changed, 212 insertions(+) create mode 100644 Source/WebKit2/UIProcess/FindIndicator.cpp (limited to 'Source/WebKit2/UIProcess/FindIndicator.cpp') diff --git a/Source/WebKit2/UIProcess/FindIndicator.cpp b/Source/WebKit2/UIProcess/FindIndicator.cpp new file mode 100644 index 000000000..e3dfe6f4d --- /dev/null +++ b/Source/WebKit2/UIProcess/FindIndicator.cpp @@ -0,0 +1,212 @@ +/* + * Copyright (C) 2010 Apple 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: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "FindIndicator.h" + +#include "ShareableBitmap.h" +#include +#include +#include +#include + +using namespace WebCore; + +static const float cornerRadius = 3.0; + +static const float shadowOffsetX = 0.0; +static const float shadowOffsetY = 1.0; +static const float shadowBlurRadius = 3.0; + +static const int shadowRed = 0; +static const int shadowGreen = 0; +static const int shadowBlue = 0; +static const int shadowAlpha = 204; + +static const float lightBorderThickness = 1.0; +static const float horizontalPaddingInsideLightBorder = 3.0; +static const float verticalPaddingInsideLightBorder = 1.0; + +static const float horizontalBorderInsideShadow = lightBorderThickness + horizontalPaddingInsideLightBorder; +static const float verticalBorderInsideShadow = lightBorderThickness + verticalPaddingInsideLightBorder; + +static const float leftBorderThickness = horizontalBorderInsideShadow + shadowOffsetX + shadowBlurRadius / 2.0; +static const float topBorderThickness = verticalBorderInsideShadow - shadowOffsetY + shadowBlurRadius / 2.0; +static const float rightBorderThickness = horizontalBorderInsideShadow - shadowOffsetX + shadowBlurRadius / 2.0; +static const float bottomBorderThickness = verticalBorderInsideShadow + shadowOffsetY + shadowBlurRadius / 2.0; + +static const float horizontalOutsetToCenterOfLightBorder = horizontalBorderInsideShadow - lightBorderThickness / 2.0; +static const float verticalOutsetToCenterOfLightBorder = verticalBorderInsideShadow - lightBorderThickness / 2.0; + +static const int lightBorderRed = 245; +static const int lightBorderGreen = 230; +static const int lightBorderBlue = 0; +static const int lightBorderAlpha = 255; + +static const int gradientDarkRed = 237; +static const int gradientDarkGreen = 204; +static const int gradientDarkBlue = 0; +static const int gradientDarkAlpha = 255; + +static const int gradientLightRed = 242; +static const int gradientLightGreen = 239; +static const int gradientLightBlue = 0; +static const int gradientLightAlpha = 255; + +namespace WebKit { + +PassRefPtr FindIndicator::create(const FloatRect& selectionRectInWindowCoordinates, const Vector& textRectsInSelectionRectCoordinates, float contentImageScaleFactor, const ShareableBitmap::Handle& contentImageHandle) +{ + RefPtr contentImage = ShareableBitmap::create(contentImageHandle); + if (!contentImage) + return 0; + ASSERT(contentImageScaleFactor != 1 || contentImage->size() == enclosingIntRect(selectionRectInWindowCoordinates).size()); + + return adoptRef(new FindIndicator(selectionRectInWindowCoordinates, textRectsInSelectionRectCoordinates, contentImageScaleFactor, contentImage.release())); +} + +static bool findIndicatorsForTextRectsOverlap(const Vector& textRects) +{ + size_t count = textRects.size(); + if (count <= 1) + return false; + + Vector indicatorRects; + indicatorRects.reserveInitialCapacity(count); + + for (size_t i = 0; i < count; ++i) { + FloatRect indicatorRect = textRects[i]; + indicatorRect.move(-leftBorderThickness, -topBorderThickness); + indicatorRect.expand(leftBorderThickness + rightBorderThickness, topBorderThickness + bottomBorderThickness); + + for (size_t j = indicatorRects.size(); j; ) { + --j; + if (indicatorRect.intersects(indicatorRects[j])) + return true; + } + + indicatorRects.uncheckedAppend(indicatorRect); + } + + return false; +} + +FindIndicator::FindIndicator(const WebCore::FloatRect& selectionRectInWindowCoordinates, const Vector& textRectsInSelectionRectCoordinates, float contentImageScaleFactor, PassRefPtr contentImage) + : m_selectionRectInWindowCoordinates(selectionRectInWindowCoordinates) + , m_textRectsInSelectionRectCoordinates(textRectsInSelectionRectCoordinates) + , m_contentImageScaleFactor(contentImageScaleFactor) + , m_contentImage(contentImage) +{ + if (findIndicatorsForTextRectsOverlap(m_textRectsInSelectionRectCoordinates)) { + m_textRectsInSelectionRectCoordinates[0] = unionRect(m_textRectsInSelectionRectCoordinates); + m_textRectsInSelectionRectCoordinates.shrink(1); + } +} + +FindIndicator::~FindIndicator() +{ +} + +static FloatRect inflateRect(const FloatRect& rect, float inflateX, float inflateY) +{ + FloatRect inflatedRect = rect; + inflatedRect.inflateX(inflateX); + inflatedRect.inflateY(inflateY); + + return inflatedRect; +} + +FloatRect FindIndicator::frameRect() const +{ + return FloatRect(m_selectionRectInWindowCoordinates.x() - leftBorderThickness, m_selectionRectInWindowCoordinates.y() - topBorderThickness, + m_selectionRectInWindowCoordinates.width() + rightBorderThickness + leftBorderThickness, + m_selectionRectInWindowCoordinates.height() + topBorderThickness + bottomBorderThickness); +} + +static Color lightBorderColor() +{ + return Color(lightBorderRed, lightBorderGreen, lightBorderBlue, lightBorderAlpha); +} + +static Color shadowColor() +{ + return Color(shadowRed, shadowGreen, shadowBlue, shadowAlpha); +} + +static Color gradientLightColor() +{ + return Color(gradientLightRed, gradientLightGreen, gradientLightBlue, gradientLightAlpha); +} + +static Color gradientDarkColor() +{ + return Color(gradientDarkRed, gradientDarkGreen, gradientDarkBlue, gradientDarkAlpha); +} + +static Path pathWithRoundedRect(const FloatRect& pathRect, float radius) +{ + Path path; + path.addRoundedRect(pathRect, FloatSize(radius, radius)); + + return path; +} + +void FindIndicator::draw(GraphicsContext& graphicsContext, const IntRect& dirtyRect) +{ + for (size_t i = 0; i < m_textRectsInSelectionRectCoordinates.size(); ++i) { + FloatRect textRect = m_textRectsInSelectionRectCoordinates[i]; + textRect.move(leftBorderThickness, topBorderThickness); + + FloatRect outerPathRect = inflateRect(textRect, horizontalOutsetToCenterOfLightBorder, verticalOutsetToCenterOfLightBorder); + FloatRect innerPathRect = inflateRect(textRect, horizontalPaddingInsideLightBorder, verticalPaddingInsideLightBorder); + + { + GraphicsContextStateSaver stateSaver(graphicsContext); + graphicsContext.setShadow(FloatSize(shadowOffsetX, shadowOffsetY), shadowBlurRadius, shadowColor(), ColorSpaceSRGB); + graphicsContext.setFillColor(lightBorderColor(), ColorSpaceDeviceRGB); + graphicsContext.fillPath(pathWithRoundedRect(outerPathRect, cornerRadius)); + } + + { + GraphicsContextStateSaver stateSaver(graphicsContext); + graphicsContext.clip(pathWithRoundedRect(innerPathRect, cornerRadius)); + RefPtr gradient = Gradient::create(FloatPoint(innerPathRect.x(), innerPathRect.y()), FloatPoint(innerPathRect.x(), innerPathRect.maxY())); + gradient->addColorStop(0, gradientLightColor()); + gradient->addColorStop(1, gradientDarkColor()); + graphicsContext.setFillGradient(gradient); + graphicsContext.fillRect(outerPathRect); + } + + { + GraphicsContextStateSaver stateSaver(graphicsContext); + graphicsContext.translate(FloatSize(roundf(leftBorderThickness), roundf(topBorderThickness))); + + IntRect contentImageRect = enclosingIntRect(m_textRectsInSelectionRectCoordinates[i]); + m_contentImage->paint(graphicsContext, m_contentImageScaleFactor, contentImageRect.location(), contentImageRect); + } + } +} + +} // namespace WebKit -- cgit v1.2.1