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/*
* 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 "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_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)
{
}
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;
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; }
void setUsePrinterFont(bool p) { m_usePrinterFont = p; }
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; }
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.
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
};
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;
}
}
#endif
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