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Diffstat (limited to 'Source/WebCore/platform/graphics/FontDescription.h')
| -rw-r--r-- | Source/WebCore/platform/graphics/FontDescription.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/FontDescription.h b/Source/WebCore/platform/graphics/FontDescription.h new file mode 100644 index 0000000..12900bf --- /dev/null +++ b/Source/WebCore/platform/graphics/FontDescription.h @@ -0,0 +1,170 @@ +/* + * Copyright (C) 2000 Lars Knoll (knoll@kde.org) + * (C) 2000 Antti Koivisto (koivisto@kde.org) + * (C) 2000 Dirk Mueller (mueller@kde.org) + * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. + * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public License + * along with this library; see the file COPYING.LIother.m_ If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USm_ + * + */ + +#ifndef FontDescription_h +#define FontDescription_h + +#include "FontFamily.h" +#include "FontOrientation.h" +#include "FontRenderingMode.h" +#include "FontSmoothingMode.h" +#include "FontTraitsMask.h" +#include "TextRenderingMode.h" + +namespace WebCore { + +enum FontWeight { + FontWeight100, + FontWeight200, + FontWeight300, + FontWeight400, + FontWeight500, + FontWeight600, + FontWeight700, + FontWeight800, + FontWeight900, + FontWeightNormal = FontWeight400, + FontWeightBold = FontWeight700 +}; + +class FontDescription { +public: + enum GenericFamilyType { NoFamily, StandardFamily, SerifFamily, SansSerifFamily, + MonospaceFamily, CursiveFamily, FantasyFamily }; + + FontDescription() + : m_specifiedSize(0) + , m_computedSize(0) + , m_orientation(Horizontal) + , m_italic(false) + , m_smallCaps(false) + , m_isAbsoluteSize(false) + , m_weight(FontWeightNormal) + , m_genericFamily(NoFamily) + , m_usePrinterFont(false) + , m_renderingMode(NormalRenderingMode) + , m_keywordSize(0) + , m_fontSmoothing(AutoSmoothing) + , m_textRendering(AutoTextRendering) + , m_isSpecifiedFont(false) + { + } + + bool operator==(const FontDescription&) const; + bool operator!=(const FontDescription& other) const { return !(*this == other); } + + const FontFamily& family() const { return m_familyList; } + FontFamily& firstFamily() { return m_familyList; } + float specifiedSize() const { return m_specifiedSize; } + float computedSize() const { return m_computedSize; } + bool italic() const { return m_italic; } + int computedPixelSize() const { return int(m_computedSize + 0.5f); } + bool smallCaps() const { return m_smallCaps; } + bool isAbsoluteSize() const { return m_isAbsoluteSize; } + FontWeight weight() const { return static_cast<FontWeight>(m_weight); } + FontWeight lighterWeight() const; + FontWeight bolderWeight() const; + GenericFamilyType genericFamily() const { return static_cast<GenericFamilyType>(m_genericFamily); } + bool usePrinterFont() const { return m_usePrinterFont; } + // only use fixed default size when there is only one font family, and that family is "monospace" + bool useFixedDefaultSize() const { return genericFamily() == MonospaceFamily && !family().next() && family().family() == "-webkit-monospace"; } + FontRenderingMode renderingMode() const { return static_cast<FontRenderingMode>(m_renderingMode); } + unsigned keywordSize() const { return m_keywordSize; } + FontSmoothingMode fontSmoothing() const { return static_cast<FontSmoothingMode>(m_fontSmoothing); } + TextRenderingMode textRenderingMode() const { return static_cast<TextRenderingMode>(m_textRendering); } + + FontTraitsMask traitsMask() const; + bool isSpecifiedFont() const { return m_isSpecifiedFont; } + FontOrientation orientation() const { return m_orientation; } + + void setFamily(const FontFamily& family) { m_familyList = family; } + void setComputedSize(float s) { m_computedSize = s; } + void setSpecifiedSize(float s) { m_specifiedSize = s; } + void setItalic(bool i) { m_italic = i; } + void setSmallCaps(bool c) { m_smallCaps = c; } + void setIsAbsoluteSize(bool s) { m_isAbsoluteSize = s; } + void setWeight(FontWeight w) { m_weight = w; } + void setGenericFamily(GenericFamilyType genericFamily) { m_genericFamily = genericFamily; } +#if PLATFORM(CHROMIUM) && OS(DARWIN) + void setUsePrinterFont(bool) { } +#else + void setUsePrinterFont(bool p) { m_usePrinterFont = p; } +#endif + void setRenderingMode(FontRenderingMode mode) { m_renderingMode = mode; } + void setKeywordSize(unsigned s) { m_keywordSize = s; } + void setFontSmoothing(FontSmoothingMode smoothing) { m_fontSmoothing = smoothing; } + void setTextRenderingMode(TextRenderingMode rendering) { m_textRendering = rendering; } + void setIsSpecifiedFont(bool isSpecifiedFont) { m_isSpecifiedFont = isSpecifiedFont; } + void setOrientation(FontOrientation orientation) { m_orientation = orientation; } + +private: + FontFamily m_familyList; // The list of font families to be used. + + float m_specifiedSize; // Specified CSS value. Independent of rendering issues such as integer + // rounding, minimum font sizes, and zooming. + float m_computedSize; // Computed size adjusted for the minimum font size and the zoom factor. + + FontOrientation m_orientation; + + bool m_italic : 1; + bool m_smallCaps : 1; + bool m_isAbsoluteSize : 1; // Whether or not CSS specified an explicit size + // (logical sizes like "medium" don't count). + unsigned m_weight : 8; // FontWeight + unsigned m_genericFamily : 3; // GenericFamilyType + bool m_usePrinterFont : 1; + + unsigned m_renderingMode : 1; // Used to switch between CG and GDI text on Windows. + + unsigned m_keywordSize : 4; // We cache whether or not a font is currently represented by a CSS keyword (e.g., medium). If so, + // then we can accurately translate across different generic families to adjust for different preference settings + // (e.g., 13px monospace vs. 16px everything else). Sizes are 1-8 (like the HTML size values for <font>). + + unsigned m_fontSmoothing : 2; // FontSmoothingMode + unsigned m_textRendering : 2; // TextRenderingMode + bool m_isSpecifiedFont : 1; // True if a web page specifies a non-generic font family as the first font family. +}; + +inline bool FontDescription::operator==(const FontDescription& other) const +{ + return m_familyList == other.m_familyList + && m_specifiedSize == other.m_specifiedSize + && m_computedSize == other.m_computedSize + && m_italic == other.m_italic + && m_smallCaps == other.m_smallCaps + && m_isAbsoluteSize == other.m_isAbsoluteSize + && m_weight == other.m_weight + && m_genericFamily == other.m_genericFamily + && m_usePrinterFont == other.m_usePrinterFont + && m_renderingMode == other.m_renderingMode + && m_keywordSize == other.m_keywordSize + && m_fontSmoothing == other.m_fontSmoothing + && m_textRendering == other.m_textRendering + && m_isSpecifiedFont == other.m_isSpecifiedFont + && m_orientation == other.m_orientation; +} + +} + +#endif |