18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 28e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Copyright (C) 2007 Apple Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "config.h" 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "WebKitGraphics.h" 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "WebKit.h" 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "WebKitDLL.h" 318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "WebPreferences.h" 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <WebCore/Font.h> 358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <WebCore/FontDescription.h> 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <WebCore/FontSelector.h> 378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <WebCore/GraphicsContext.h> 388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <WebCore/PlatformString.h> 398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <WebCore/StringTruncator.h> 408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <WebCore/WebCoreTextRenderer.h> 412fc2651226baac27029e38c9d6ef883fa32084dbSteve Block#include <wtf/unicode/CharacterNames.h> 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <CoreGraphics/CoreGraphics.h> 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <WebKitSystemInterface/WebKitSystemInterface.h> 468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectusing namespace WebCore; 488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstatic Font makeFont(const WebFontDescription& description) 508e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project AtomicString::init(); 528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project String fontFamilyString(description.family, description.familyLength); 548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FontDescription f; 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FontFamily family; 578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project family.setFamily(fontFamilyString); 588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project f.setFamily(family); 598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project f.setSpecifiedSize(description.size); 608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project f.setComputedSize(description.size); 618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project f.setItalic(description.italic); 628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project f.setWeight(description.bold ? FontWeightBold : FontWeightNormal); 638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project f.setIsAbsoluteSize(true); 648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project FontSmoothingType smoothingType; 668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (SUCCEEDED(WebPreferences::sharedStandardPreferences()->fontSmoothing(&smoothingType))) 678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project f.setRenderingMode(smoothingType == FontSmoothingTypeWindows ? AlternateRenderingMode : NormalRenderingMode); 688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Font font(f, 0, 0); 708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project font.update(0); 718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return font; 738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// Text shadow is added post 3.1.1. In order for nightlies to not break Safari 3.1.1, we should still allow 768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// the old WebTextRenderInfo that has a smaller structSize than the current one with the new text shadow data members. 778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectstruct WebTextRenderInfoWithoutShadow 788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project DWORD structSize; 808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CGContextRef cgContext; 818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project LPCTSTR text; 828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int length; 838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project POINT pt; 848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project const WebFontDescription* description; 858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project CGColorRef color; 868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int underlinedIndex; 878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool drawAsPassword; 888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int overrideSmoothingLevel; // pass in -1 if caller does not want to override smoothing level 898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project}; 908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid WebDrawText(WebTextRenderInfo* info) 928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!info || info->structSize < sizeof(WebTextRenderInfoWithoutShadow) || !info->cgContext || !info->description) 948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project int oldFontSmoothingLevel = -1; 978e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (info->overrideSmoothingLevel >= 0) { 988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project oldFontSmoothingLevel = wkGetFontSmoothingLevel(); 998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project wkSetFontSmoothingLevel(info->overrideSmoothingLevel); 1008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project { 1038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project GraphicsContext context(info->cgContext); 1048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project String drawString(info->text, info->length); 1058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (info->drawAsPassword) 1062fc2651226baac27029e38c9d6ef883fa32084dbSteve Block drawString = drawString.impl()->secure(WTF::Unicode::bullet); 1078e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project context.save(); 1098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Set shadow setting 1118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (info->structSize == sizeof(WebTextRenderInfo) && 1128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project (info->shadowOffset.cx || info->shadowOffset.cy || info->shadowBlur || info->shadowColor)) 113a94275402997c11dd2e778633dacf4b7e630a35dBen Murdoch context.setShadow(FloatSize(info->shadowOffset.cx, info->shadowOffset.cy), info->shadowBlur, info->shadowColor, ColorSpaceDeviceRGB); 1148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project WebCoreDrawTextAtPoint(context, drawString, info->pt, makeFont(*(info->description)), info->color, info->underlinedIndex); 1168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project context.restore(); 1178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project } 1188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (info->overrideSmoothingLevel >= 0) 1208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project wkSetFontSmoothingLevel(oldFontSmoothingLevel); 1218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectfloat TextFloatWidth(LPCTSTR text, int length, const WebFontDescription& description) 1248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return WebCoreTextFloatWidth(String(text, length), makeFont(description)); 1268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid FontMetrics(const WebFontDescription& description, int* ascent, int* descent, int* lineSpacing) 1298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!ascent && !descent && !lineSpacing) 1318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return; 1328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project Font font(makeFont(description)); 1342fc2651226baac27029e38c9d6ef883fa32084dbSteve Block const WebCore::FontMetrics& fontMetrics(font.fontMetrics()); 1358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (ascent) 1372fc2651226baac27029e38c9d6ef883fa32084dbSteve Block *ascent = fontMetrics.ascent(); 1388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (descent) 1402fc2651226baac27029e38c9d6ef883fa32084dbSteve Block *descent = fontMetrics.descent(); 1418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (lineSpacing) 1432fc2651226baac27029e38c9d6ef883fa32084dbSteve Block *lineSpacing = fontMetrics.lineSpacing(); 1448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectunsigned CenterTruncateStringToWidth(LPCTSTR text, int length, const WebFontDescription& description, float width, WCHAR* buffer) 1478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(buffer); 1498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 15081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch String result = StringTruncator::centerTruncate(String(text, length), width, makeFont(description)); 1518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project memcpy(buffer, result.characters(), result.length() * sizeof(UChar)); 1528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project buffer[result.length()] = '\0'; 1538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result.length(); 1548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectunsigned RightTruncateStringToWidth(LPCTSTR text, int length, const WebFontDescription& description, float width, WCHAR* buffer) 1578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ASSERT(buffer); 1598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 16081bc750723a18f21cd17d1b173cd2a4dda9cea6eBen Murdoch String result = StringTruncator::rightTruncate(String(text, length), width, makeFont(description)); 1618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project memcpy(buffer, result.characters(), result.length() * sizeof(UChar)); 1628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project buffer[result.length()] = '\0'; 1638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result.length(); 1648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectvoid WebKitSetShouldUseFontSmoothing(bool smooth) 1678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project WebCoreSetShouldUseFontSmoothing(smooth); 1698e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectbool WebKitShouldUseFontSmoothing() 1728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return WebCoreShouldUseFontSmoothing(); 1748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 175