#include <cairomm/pattern.h>
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|  | LinearGradient (cairo_pattern_t *cobject, bool has_reference=false) | 
|  | Create a C++ wrapper for the C instance. 
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| void | get_linear_points (double &x0, double &y0, double &x1, double &y1) const | 
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|  | ~LinearGradient () 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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◆ LinearGradient() [1/2]
  
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          | Cairo::LinearGradient::LinearGradient | ( | double | x0, |  
          |  |  | double | y0, |  
          |  |  | double | x1, |  
          |  |  | double | y1 |  
          |  | ) |  |  |  | protected | 
 
 
◆ LinearGradient() [2/2]
Create a C++ wrapper for the C instance. 
This C++ instance should then be given to a RefPtr. 
- Parameters
- 
  
    | cobject | The C instance. |  | has_reference | Whether we already have a reference. Otherwise, the constructor will take an extra reference. |  
 
 
 
◆ ~LinearGradient()
  
  | 
        
          | Cairo::LinearGradient::~LinearGradient | ( |  | ) |  |  | override | 
 
 
◆ create()
Create a new linear gradient Cairo::Pattern along the line defined by (x0, y0) and (x1, y1). 
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
- 
  
    | x0 | x coordinate of the start point |  | y0 | y coordinate of the start point |  | x1 | x coordinate of the end point |  | y1 | y coordinate of the end point |  
 
 
 
◆ get_linear_points()
      
        
          | void Cairo::LinearGradient::get_linear_points | ( | double & | x0, | 
        
          |  |  | double & | y0, | 
        
          |  |  | double & | x1, | 
        
          |  |  | double & | y1 | 
        
          |  | ) |  | const | 
      
 
- Parameters
- 
  
    | x0 | return value for the x coordinate of the first point |  | y0 | return value for the y coordinate of the first point |  | x1 | return value for the x coordinate of the second point |  | y1 | return value for the y coordinate of the second point |  
 
Gets the gradient endpoints for a linear gradient.
- Since
- 1.4 
 
 
The documentation for this class was generated from the following file: