#include <cairomm/pattern.h>
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| | RadialGradient (cairo_pattern_t *cobject, bool has_reference=false) |
| | Create a C++ wrapper for the C instance.
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| void | get_radial_circles (double &x0, double &y0, double &r0, double &x1, double &y1, double &r1) const |
| | Gets the gradient endpoint circles for a radial gradient, each specified as a center coordinate and a radius.
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| | ~RadialGradient () override |
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| | Gradient (cairo_pattern_t *cobject, bool has_reference=false) |
| | Create a C++ wrapper for the C instance.
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| | ~Gradient () override |
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| void | add_color_stop_rgb (double offset, double red, double green, double blue) |
| | Adds an opaque color stop to a gradient pattern.
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| void | add_color_stop_rgba (double offset, double red, double green, double blue, double alpha) |
| | Adds a translucent color stop to a gradient pattern.
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| std::vector< ColorStop > | get_color_stops () const |
| | Gets the color stops and offsets for this Gradient.
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| | Pattern (cairo_pattern_t *cobject, bool has_reference=false) |
| | Create a C++ wrapper for the C instance.
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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) |
| | Sets the pattern's transformation matrix to @matrix.
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| void | get_matrix (Matrix &matrix) const |
| | Returns the pattern's transformation matrix.
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| Matrix | get_matrix () const |
| | Returns the pattern's transformation matrix.
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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 |
| | Returns the type of the pattern.
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| void | set_extend (Extend extend) |
| | Sets the mode to be used for drawing outside the area of a pattern.
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| Extend | get_extend () const |
| | Gets the current extend mode See Cairo::Extend for details on the semantics of each extend strategy.
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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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◆ RadialGradient() [1/2]
| Cairo::RadialGradient::RadialGradient |
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double |
cx0, |
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double |
cy0, |
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double |
radius0, |
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double |
cx1, |
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double |
cy1, |
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double |
radius1 |
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) |
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protected |
◆ RadialGradient() [2/2]
Create a C++ wrapper for the C instance.
This C++ instance should then be given to a RefPtr.
- Parameters
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| cobject | The C instance. |
| has_reference | Whether we already have a reference. Otherwise, the constructor will take an extra reference. |
◆ ~RadialGradient()
| Cairo::RadialGradient::~RadialGradient |
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| ) |
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override |
◆ create()
| static RefPtr< RadialGradient > Cairo::RadialGradient::create |
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double |
cx0, |
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double |
cy0, |
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double |
radius0, |
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double |
cx1, |
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double |
cy1, |
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double |
radius1 |
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) |
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static |
Creates a new radial gradient #cairo_pattern_t between the two circles defined by (cx0, cy0, radius0) and (cx1, cy1, radius1).
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().
- 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().
- Parameters
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| cx0 | x coordinate for the center of the start circle |
| cy0 | y coordinate for the center of the start circle |
| radius0 | radius of the start circle |
| cx1 | x coordinate for the center of the end circle |
| cy1 | y coordinate for the center of the end circle |
| radius1 | radius of the end circle |
◆ get_radial_circles()
| void Cairo::RadialGradient::get_radial_circles |
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double & |
x0, |
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double & |
y0, |
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double & |
r0, |
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double & |
x1, |
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double & |
y1, |
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double & |
r1 |
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| const |
Gets the gradient endpoint circles for a radial gradient, each specified as a center coordinate and a radius.
- Parameters
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| x0 | return value for the x coordinate of the center of the first (inner) circle |
| y0 | return value for the y coordinate of the center of the first (inner) circle |
| r0 | return value for the radius of the first (inner) circle |
| x1 | return value for the x coordinate of the center of the second (outer) circle |
| y1 | return value for the y coordinate of the center of the second (outer) circle |
| r1 | return value for the radius of the second (outer) circle |
- Since
- 1.4
The documentation for this class was generated from the following file: