diff -r 000000000000 -r 4f2f89ce4247 WebKit/win/WebKitGraphics.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/WebKit/win/WebKitGraphics.cpp Fri Sep 17 09:02:29 2010 +0300 @@ -0,0 +1,175 @@ +/* + * Copyright (C) 2007 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 COMPUTER, INC. ``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 COMPUTER, INC. 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 "WebKitGraphics.h" + +#include "WebKit.h" +#include "WebKitDLL.h" + +#include "WebPreferences.h" + +#pragma warning(push, 0) +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#pragma warning(pop) + +#include + +using namespace WebCore; + +static Font makeFont(const WebFontDescription& description) +{ + AtomicString::init(); + + String fontFamilyString(description.family, description.familyLength); + + FontDescription f; + FontFamily family; + family.setFamily(fontFamilyString); + f.setFamily(family); + f.setSpecifiedSize(description.size); + f.setComputedSize(description.size); + f.setItalic(description.italic); + f.setWeight(description.bold ? FontWeightBold : FontWeightNormal); + f.setIsAbsoluteSize(true); + + FontSmoothingType smoothingType; + if (SUCCEEDED(WebPreferences::sharedStandardPreferences()->fontSmoothing(&smoothingType))) + f.setRenderingMode(smoothingType == FontSmoothingTypeWindows ? AlternateRenderingMode : NormalRenderingMode); + + Font font(f, 0, 0); + font.update(0); + + return font; +} + +// Text shadow is added post 3.1.1. In order for nightlies to not break Safari 3.1.1, we should still allow +// the old WebTextRenderInfo that has a smaller structSize than the current one with the new text shadow data members. +struct WebTextRenderInfoWithoutShadow +{ + DWORD structSize; + CGContextRef cgContext; + LPCTSTR text; + int length; + POINT pt; + const WebFontDescription* description; + CGColorRef color; + int underlinedIndex; + bool drawAsPassword; + int overrideSmoothingLevel; // pass in -1 if caller does not want to override smoothing level +}; + +void WebDrawText(WebTextRenderInfo* info) +{ + if (!info || info->structSize < sizeof(WebTextRenderInfoWithoutShadow) || !info->cgContext || !info->description) + return; + + int oldFontSmoothingLevel = -1; + if (info->overrideSmoothingLevel >= 0) { + oldFontSmoothingLevel = wkGetFontSmoothingLevel(); + wkSetFontSmoothingLevel(info->overrideSmoothingLevel); + } + + { + GraphicsContext context(info->cgContext); + String drawString(info->text, info->length); + if (info->drawAsPassword) + drawString = drawString.impl()->secure(WebCore::bullet); + + context.save(); + + // Set shadow setting + if (info->structSize == sizeof(WebTextRenderInfo) && + (info->shadowOffset.cx || info->shadowOffset.cy || info->shadowBlur || info->shadowColor)) + context.setShadow(FloatSize(info->shadowOffset.cx, info->shadowOffset.cy), info->shadowBlur, info->shadowColor, DeviceColorSpace); + + WebCoreDrawTextAtPoint(context, drawString, info->pt, makeFont(*(info->description)), info->color, info->underlinedIndex); + context.restore(); + } + + if (info->overrideSmoothingLevel >= 0) + wkSetFontSmoothingLevel(oldFontSmoothingLevel); +} + +float TextFloatWidth(LPCTSTR text, int length, const WebFontDescription& description) +{ + return WebCoreTextFloatWidth(String(text, length), makeFont(description)); +} + +void FontMetrics(const WebFontDescription& description, int* ascent, int* descent, int* lineSpacing) +{ + if (!ascent && !descent && !lineSpacing) + return; + + Font font(makeFont(description)); + + if (ascent) + *ascent = font.ascent(); + + if (descent) + *descent = font.descent(); + + if (lineSpacing) + *lineSpacing = font.lineSpacing(); +} + +unsigned CenterTruncateStringToWidth(LPCTSTR text, int length, const WebFontDescription& description, float width, WCHAR* buffer) +{ + ASSERT(buffer); + + String result = StringTruncator::centerTruncate(String(text, length), width, makeFont(description), false); + memcpy(buffer, result.characters(), result.length() * sizeof(UChar)); + buffer[result.length()] = '\0'; + return result.length(); +} + +unsigned RightTruncateStringToWidth(LPCTSTR text, int length, const WebFontDescription& description, float width, WCHAR* buffer) +{ + ASSERT(buffer); + + String result = StringTruncator::rightTruncate(String(text, length), width, makeFont(description), false); + memcpy(buffer, result.characters(), result.length() * sizeof(UChar)); + buffer[result.length()] = '\0'; + return result.length(); +} + +void WebKitSetShouldUseFontSmoothing(bool smooth) +{ + WebCoreSetShouldUseFontSmoothing(smooth); +} + +bool WebKitShouldUseFontSmoothing() +{ + return WebCoreShouldUseFontSmoothing(); +}