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<title>cairomm: Cairo::RadialGradient Class Reference</title>
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CairoRadialGradient
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Public Member Functions |
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List of all members
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Cairo::RadialGradient Class Reference
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Inheritance diagram for Cairo::RadialGradient:
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<map name="Cairo_1_1RadialGradient_inherit__map" id="Cairo_1_1RadialGradient_inherit__map">
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<area shape="rect" id="node2" href="classCairo_1_1Gradient.html" title="Cairo::Gradient" alt="" coords="24,80,143,107"/><area shape="rect" id="node3" href="classCairo_1_1Pattern.html" title="Cairo::Pattern is the paint with which cairo draws. " alt="" coords="29,5,138,32"/></map>
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<center>[legend]</center>
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Public Member Functions
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RadialGradient (cairo_pattern_t*cobject, bool has_reference=false)
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Create a C++ wrapper for the C instance. More...
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void get_radial_circles (double& x0, double& y0, double& r0, double& x1, double& y1, double& r1) const
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Gets the gradient endpoint circles for a radial gradient, each specified as a center coordinate and a radius. More...
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virtual ~RadialGradient ()
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 Public Member Functions inherited from Cairo::Gradient
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Gradient (cairo_pattern_t*cobject, bool has_reference=false)
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Create a C++ wrapper for the C instance. More...
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virtual ~Gradient ()
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void add_color_stop_rgb (double offset, double red, double green, double blue)
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Adds an opaque color stop to a gradient pattern. More...
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void add_color_stop_rgba (double offset, double red, double green, double blue, double alpha)
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Adds a translucent color stop to a gradient pattern. More...
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std::vector< ColorStop > get_color_stops () const
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Gets the color stops and offsets for this Gradient. More...
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Public Member Functions inherited from Cairo::Pattern
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Pattern (cairo_pattern_t*cobject, bool has_reference=false)
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Create a C++ wrapper for the C instance. More...
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Pattern (const Pattern&)=delete
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Pattern& operator= (const Pattern&)=delete
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virtual ~Pattern ()
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void set_matrix (const Matrix& matrix)
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Sets the pattern's transformation matrix to . More...
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void get_matrix (Matrix& matrix) const
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Returns the pattern's transformation matrix. More...
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Matrix get_matrix () const
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Returns the pattern's transformation matrix. More...
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void set_matrix (const cairo_matrix_t& matrix)
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void get_matrix (cairo_matrix_t& matrix) const
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PatternType get_type () const
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Returns the type of the pattern. More...
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void set_extend (Extend extend)
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Sets the mode to be used for drawing outside the area of a pattern. More...
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Extend get_extend () const
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Gets the current extend mode See Cairo::Extend for details on the semantics of each extend strategy. More...
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cobject* cobj ()
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const cobject* cobj () const
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void reference () const
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void unreference () const
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Static Public Member Functions
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static RefPtr< RadialGradient > create (double cx0, double cy0, double radius0, double cx1, double cy1, double radius1)
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Creates a new radial gradient #cairo_pattern_t between the two circles defined by (cx0, cy0, radius0) and (cx1, cy1, radius1). More...
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Protected Member Functions
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RadialGradient (double cx0, double cy0, double radius0, double cx1, double cy1, double radius1)
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Protected Member Functions inherited from Cairo::Gradient
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Gradient ()
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Protected Member Functions inherited from Cairo::Pattern
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Pattern ()
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Additional Inherited Members
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Public Types inherited from Cairo::Pattern
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typedef cairo_pattern_t cobject
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Protected Attributes inherited from Cairo::Pattern
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cobject* m_cobject
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Constructor & Destructor Documentation
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Cairo::RadialGradient::RadialGradient
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(
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double
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cx0,
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double
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cy0,
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double
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radius0,
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double
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cx1,
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double
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cy1,
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double
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radius1
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)
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protected
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Cairo::RadialGradient::RadialGradient
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(
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cairo_pattern_t *
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cobject,
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bool
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has_reference = false
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)
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explicit
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Create a C++ wrapper for the C instance.
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This C++ instance should then be given to a RefPtr. - Parameters
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cobjectThe C instance.
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has_referenceWhether we already have a reference. Otherwise, the constructor will take an extra reference.
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virtual Cairo::RadialGradient::~RadialGradient
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(
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)
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virtual
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Member Function Documentation
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static RefPtr<RadialGradient> Cairo::RadialGradient::create
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(
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double
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double
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radius0,
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cx1,
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radius1
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)
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static
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Creates a new radial gradient #cairo_pattern_t between the two circles defined by (cx0, cy0, radius0) and (cx1, cy1, radius1).
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Before using the gradient pattern, a number of color stops should be defined using Cairo::Gradient::add_color_stop_rgb() or Cairo::Gradient::add_color_stop_rgba().
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- Note
- The coordinates here are in pattern space. For a new pattern, pattern space is identical to user space, but the relationship between the spaces can be changed with Cairo::Pattern::set_matrix().
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- Parameters
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cx0x coordinate for the center of the start circle
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cy0y coordinate for the center of the start circle
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radius0radius of the start circle
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cx1x coordinate for the center of the end circle
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cy1y coordinate for the center of the end circle
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radius1radius of the end circle
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void Cairo::RadialGradient::get_radial_circles
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(
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double &
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x0,
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double &
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double &
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r0,
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double &
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x1,
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double &
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y1,
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double &
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r1
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)
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const
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Gets the gradient endpoint circles for a radial gradient, each specified as a center coordinate and a radius.
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- Parameters
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x0return value for the x coordinate of the center of the first (inner) circle
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y0return value for the y coordinate of the center of the first (inner) circle
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r0return value for the radius of the first (inner) circle
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x1return value for the x coordinate of the center of the second (outer) circle
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y1return value for the y coordinate of the center of the second (outer) circle
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r1return value for the radius of the second (outer) circle
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- Since
- 1.4
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The documentation for this class was generated from the following file:
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cairomm/pattern.h
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<address class="footer"><small>
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Generated on Mon Sep 21 2015 21:56:36 for cairomm by
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1.8.9.1
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</small></address>
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</body>
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</html>
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