| /* |
| * Copyright (C) 2007 Eric Seidel <eric@webkit.org> |
| * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2008 Rob Buis <buis@kde.org> |
| * |
| * 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 SVGGlyphElement_h |
| #define SVGGlyphElement_h |
| |
| #if ENABLE(SVG_FONTS) |
| #include "Path.h" |
| #include "SVGStyledElement.h" |
| |
| #include <limits> |
| #include <wtf/Forward.h> |
| |
| namespace WebCore { |
| |
| class SVGFontData; |
| |
| // Describe a SVG <glyph> element |
| struct SVGGlyphIdentifier { |
| enum Orientation { |
| Vertical, |
| Horizontal, |
| Both |
| }; |
| |
| // SVG Font depends on exactly this order. |
| enum ArabicForm { |
| None = 0, |
| Isolated, |
| Terminal, |
| Initial, |
| Medial |
| }; |
| |
| SVGGlyphIdentifier() |
| : isValid(false) |
| , orientation(Both) |
| , arabicForm(None) |
| , priority(0) |
| , nameLength(0) |
| , horizontalAdvanceX(0.0f) |
| , verticalOriginX(0.0f) |
| , verticalOriginY(0.0f) |
| , verticalAdvanceY(0.0f) |
| { |
| } |
| |
| // Used to mark our float properties as "to be inherited from SVGFontData" |
| static float inheritedValue() |
| { |
| static float s_inheritedValue = std::numeric_limits<float>::infinity(); |
| return s_inheritedValue; |
| } |
| |
| bool operator==(const SVGGlyphIdentifier& other) const |
| { |
| return isValid == other.isValid |
| && orientation == other.orientation |
| && arabicForm == other.arabicForm |
| && glyphName == other.glyphName |
| && horizontalAdvanceX == other.horizontalAdvanceX |
| && verticalOriginX == other.verticalOriginX |
| && verticalOriginY == other.verticalOriginY |
| && verticalAdvanceY == other.verticalAdvanceY |
| && languages == other.languages; |
| } |
| |
| bool isValid : 1; |
| |
| unsigned orientation : 2; // Orientation |
| unsigned arabicForm : 3; // ArabicForm |
| int priority; |
| size_t nameLength; |
| String glyphName; |
| |
| float horizontalAdvanceX; |
| float verticalOriginX; |
| float verticalOriginY; |
| float verticalAdvanceY; |
| |
| Path pathData; |
| Vector<String> languages; |
| }; |
| |
| class SVGGlyphElement : public SVGStyledElement { |
| public: |
| static PassRefPtr<SVGGlyphElement> create(const QualifiedName&, Document*); |
| |
| SVGGlyphIdentifier buildGlyphIdentifier() const; |
| |
| // Helper function used by SVGFont |
| static void inheritUnspecifiedAttributes(SVGGlyphIdentifier&, const SVGFontData*); |
| static String querySVGFontLanguage(const SVGElement*); |
| |
| // Helper function shared between SVGGlyphElement & SVGMissingGlyphElement |
| static SVGGlyphIdentifier buildGenericGlyphIdentifier(const SVGElement*); |
| |
| private: |
| SVGGlyphElement(const QualifiedName&, Document*); |
| |
| virtual void parseMappedAttribute(Attribute*); |
| virtual void fillAttributeToPropertyTypeMap(); |
| virtual AttributeToPropertyTypeMap& attributeToPropertyTypeMap(); |
| |
| virtual void insertedIntoDocument(); |
| virtual void removedFromDocument(); |
| |
| virtual bool rendererIsNeeded(RenderStyle*) { return false; } |
| |
| void invalidateGlyphCache(); |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(SVG_FONTS) |
| #endif |