| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * 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.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #ifndef FontBuilder_h |
| #define FontBuilder_h |
| |
| #include "core/CSSValueKeywords.h" |
| #include "core/css/FontSize.h" |
| #include "platform/fonts/FontDescription.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/PassRefPtr.h" |
| |
| namespace blink { |
| |
| class CSSValue; |
| class FontSelector; |
| class RenderStyle; |
| |
| class FontDescriptionChangeScope; |
| |
| class FontBuilder { |
| STACK_ALLOCATED(); |
| WTF_MAKE_NONCOPYABLE(FontBuilder); |
| public: |
| FontBuilder(const Document&); |
| |
| void setStyle(RenderStyle* style) { m_style = style; } |
| void setInitial(float effectiveZoom); |
| |
| void didChangeFontParameters(bool); |
| |
| void inheritFrom(const FontDescription&); |
| |
| FontFamily standardFontFamily() const; |
| AtomicString standardFontFamilyName() const; |
| AtomicString genericFontFamilyName(FontDescription::GenericFamilyType) const; |
| |
| void setWeight(FontWeight); |
| void setSize(const FontDescription::Size&); |
| void setStretch(FontStretch); |
| void setFamilyDescription(const FontDescription::FamilyDescription&); |
| void setFeatureSettings(PassRefPtr<FontFeatureSettings>); |
| void setScript(const String& locale); |
| void setStyle(FontStyle); |
| void setVariant(FontVariant); |
| void setVariantLigatures(const FontDescription::VariantLigatures&); |
| void setTextRendering(TextRenderingMode); |
| void setKerning(FontDescription::Kerning); |
| void setFontSmoothing(FontSmoothingMode); |
| |
| // FIXME: These need to just vend a Font object eventually. |
| void createFont(PassRefPtrWillBeRawPtr<FontSelector>, const RenderStyle* parentStyle, RenderStyle*); |
| |
| void createFontForDocument(PassRefPtrWillBeRawPtr<FontSelector>, RenderStyle*); |
| |
| // FIXME: These should not be necessary eventually. |
| void setFontDirty(bool fontDirty) { m_fontDirty = fontDirty; } |
| // FIXME: This is only used by an ASSERT in StyleResolver. Remove? |
| bool fontDirty() const { return m_fontDirty; } |
| |
| static FontDescription::FamilyDescription initialFamilyDescription() { return FontDescription::FamilyDescription(initialGenericFamily()); } |
| static FontFeatureSettings* initialFeatureSettings() { return nullptr; } |
| static FontDescription::GenericFamilyType initialGenericFamily() { return FontDescription::StandardFamily; } |
| static FontDescription::Size initialSize() { return FontDescription::Size(FontSize::initialKeywordSize(), 0.0f, false); } |
| static TextRenderingMode initialTextRendering() { return AutoTextRendering; } |
| static FontVariant initialVariant() { return FontVariantNormal; } |
| static FontDescription::VariantLigatures initialVariantLigatures() { return FontDescription::VariantLigatures(); } |
| static FontStyle initialStyle() { return FontStyleNormal; } |
| static FontDescription::Kerning initialKerning() { return FontDescription::AutoKerning; } |
| static FontSmoothingMode initialFontSmoothing() { return AutoSmoothing; } |
| static FontStretch initialStretch() { return FontStretchNormal; } |
| static FontWeight initialWeight() { return FontWeightNormal; } |
| |
| friend class FontDescriptionChangeScope; |
| |
| private: |
| |
| void setFamilyDescription(FontDescription&, const FontDescription::FamilyDescription&); |
| void setSize(FontDescription&, const FontDescription::Size&); |
| void checkForOrientationChange(RenderStyle*); |
| // This function fixes up the default font size if it detects that the current generic font family has changed. -dwh |
| void checkForGenericFamilyChange(RenderStyle*, const RenderStyle* parentStyle); |
| void updateComputedSize(RenderStyle*, const RenderStyle* parentStyle); |
| void updateComputedSize(FontDescription&, RenderStyle*); |
| |
| float getComputedSizeFromSpecifiedSize(FontDescription&, float effectiveZoom, float specifiedSize); |
| |
| const Document& m_document; |
| // FIXME: This member is here on a short-term lease. The plan is to remove |
| // any notion of RenderStyle from here, allowing FontBuilder to build Font objects |
| // directly, rather than as a byproduct of calling RenderStyle::setFontDescription. |
| // FontDescriptionChangeScope should be the only consumer of this member. |
| // If you're using it, U R DOIN IT WRONG. |
| RenderStyle* m_style; |
| |
| // Fontbuilder is responsbile for creating the Font() |
| // object on RenderStyle from various other font-related |
| // properties on RenderStyle. Whenever one of those |
| // is changed, FontBuilder tracks the need to update |
| // style->font() with this bool. |
| bool m_fontDirty; |
| |
| friend class FontBuilderTest; |
| }; |
| |
| } |
| |
| #endif |