Pure virtual base class for fonts.
Inheritance:
Public Methods
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Font(FontImplementation* implementation=0)
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virtual osg::Object* cloneType() const
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virtual osg::Object* clone(const osg::CopyOp&) const
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virtual bool isSameKindAs(const osg::Object* obj) const
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virtual const char* className() const
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virtual const char* libraryName() const
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virtual std::string getFileName() const
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virtual void setSize(unsigned int width, unsigned int height)
- Set the pixel width and height hint
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unsigned int getWidth()
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unsigned int getHeight()
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virtual Glyph* getGlyph(unsigned int charcode)
- Get a Glyph for specified charcode, and the font size nearest to the current font size hint
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virtual osg::Vec2 getKerning(unsigned int leftcharcode, unsigned int rightcharcode)
- Get a kerning (adjustment of spacing of two adjacent character) for specified charcodes, wrt the current font size hint
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virtual bool hasVertical() const
- Return true if this font provides vertical alignments and spacing or glyphs
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void setGlyphImageMargin(unsigned int margin)
- Set the margin around each glyph, to ensure that texture filtering doesn't bleed adjacent glyph's into each other.
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unsigned int getGlyphImageMargin() const
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void setTextureSizeHint(unsigned int width, unsigned int height)
- Set the size of texture to create to store the glyph images when rendering.
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unsigned int getTextureWidthHint() const
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unsigned int getTextureHeightHint() const
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void setMinFilterHint(osg::Texture::FilterMode mode)
- Set the minification texture filter to use when creating the texture to store the glyph images when rendering.
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osg::Texture::FilterMode getMinFilterHint() const
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void setMagFilterHint(osg::Texture::FilterMode mode)
- Set the magnification texture filter to use when creating the texture to store the glyph images when rendering.
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osg::Texture::FilterMode getMagFilterHint() const
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void setImplementation(FontImplementation* implementation)
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FontImplementation* getImplementation()
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const FontImplementation* getImplementation() const
Public Members
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class FontImplementation: public osg::Referenced
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class OSGTEXT_EXPORT GlyphTexture: public osg::Texture2D
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class OSGTEXT_EXPORT Glyph: public osg::Image
Protected Fields
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SizeGlyphMap _sizeGlyphMap
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GlyphTextureList _glyphTextureList
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StateSetList _stateSetList
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unsigned int _width
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unsigned int _height
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unsigned int _margin
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unsigned int _textureWidthHint
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unsigned int _textureHeightHint
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osg::Texture::FilterMode _minFilterHint
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osg::Texture::FilterMode _magFilterHint
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osg::ref_ptr<FontImplementation> _implementation
Protected Methods
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virtual ~Font()
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void addGlyph(unsigned int width, unsigned int height, unsigned int charcode, Glyph* glyph)
Protected Members
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typedef std::vector< osg::ref_ptr<GlyphTexture> > GlyphTextureList
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typedef std::vector< osg::ref_ptr<osg::StateSet> > StateSetList
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typedef std::map< unsigned int, osg::ref_ptr<Glyph> > GlyphMap
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typedef std::pair< unsigned int, unsigned int > SizePair
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typedef std::map< SizePair, GlyphMap > SizeGlyphMap
Documentation
Pure virtual base class for fonts.
Concrete implementation are the DefaultFont found in src/osgText/DefaultFont.cpp
and FreeTypeFont found in src/osgPlugins/freetype/FreeTypeFont.cpp
Font(FontImplementation* implementation=0)
virtual osg::Object* cloneType() const
virtual osg::Object* clone(const osg::CopyOp&) const
virtual bool isSameKindAs(const osg::Object* obj) const
virtual const char* className() const
virtual const char* libraryName() const
virtual std::string getFileName() const
virtual void setSize(unsigned int width, unsigned int height)
- Set the pixel width and height hint
unsigned int getWidth()
unsigned int getHeight()
virtual Glyph* getGlyph(unsigned int charcode)
- Get a Glyph for specified charcode, and the font size nearest to the current font size hint
virtual osg::Vec2 getKerning(unsigned int leftcharcode, unsigned int rightcharcode)
- Get a kerning (adjustment of spacing of two adjacent character) for specified charcodes, wrt the current font size hint
virtual bool hasVertical() const
- Return true if this font provides vertical alignments and spacing or glyphs
void setGlyphImageMargin(unsigned int margin)
- Set the margin around each glyph,
to ensure that texture filtering doesn't bleed adjacent glyph's into each other.
Default margin is 2 texels.
unsigned int getGlyphImageMargin() const
void setTextureSizeHint(unsigned int width, unsigned int height)
- Set the size of texture to create to store the glyph images when rendering.
Note, this doesn't affect already created Texture Glhph's.
unsigned int getTextureWidthHint() const
unsigned int getTextureHeightHint() const
void setMinFilterHint(osg::Texture::FilterMode mode)
- Set the minification texture filter to use when creating the texture to store the glyph images when rendering.
Note, this doesn't affect already created Texture Glhph's.
osg::Texture::FilterMode getMinFilterHint() const
void setMagFilterHint(osg::Texture::FilterMode mode)
- Set the magnification texture filter to use when creating the texture to store the glyph images when rendering.
Note, this doesn't affect already created Texture Glhph's.
osg::Texture::FilterMode getMagFilterHint() const
void setImplementation(FontImplementation* implementation)
FontImplementation* getImplementation()
const FontImplementation* getImplementation() const
virtual ~Font()
void addGlyph(unsigned int width, unsigned int height, unsigned int charcode, Glyph* glyph)
typedef std::vector< osg::ref_ptr<GlyphTexture> > GlyphTextureList
typedef std::vector< osg::ref_ptr<osg::StateSet> > StateSetList
typedef std::map< unsigned int, osg::ref_ptr<Glyph> > GlyphMap
typedef std::pair< unsigned int, unsigned int > SizePair
typedef std::map< SizePair, GlyphMap > SizeGlyphMap
SizeGlyphMap _sizeGlyphMap
GlyphTextureList _glyphTextureList
StateSetList _stateSetList
unsigned int _width
unsigned int _height
unsigned int _margin
unsigned int _textureWidthHint
unsigned int _textureHeightHint
osg::Texture::FilterMode _minFilterHint
osg::Texture::FilterMode _magFilterHint
osg::ref_ptr<FontImplementation> _implementation
- This class has no child classes.
- Friends:
- class FontImplementation
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