| cairomm 1.18.0
    | 
#include <cairomm/pattern.h>

| Public Member Functions | |
| LinearGradient (cairo_pattern_t *cobject, bool has_reference=false) | |
| Create a C++ wrapper for the C instance. | |
| void | get_linear_points (double &x0, double &y0, double &x1, double &y1) const | 
| ~LinearGradient () override | |
|  Public Member Functions inherited from Cairo::Gradient | |
| Gradient (cairo_pattern_t *cobject, bool has_reference=false) | |
| Create a C++ wrapper for the C instance. | |
| ~Gradient () override | |
| void | add_color_stop_rgb (double offset, double red, double green, double blue) | 
| Adds an opaque color stop to a gradient pattern. | |
| void | add_color_stop_rgba (double offset, double red, double green, double blue, double alpha) | 
| Adds a translucent color stop to a gradient pattern. | |
| std::vector< ColorStop > | get_color_stops () const | 
| Gets the color stops and offsets for this Gradient. | |
|  Public Member Functions inherited from Cairo::Pattern | |
| Pattern (cairo_pattern_t *cobject, bool has_reference=false) | |
| Create a C++ wrapper for the C instance. | |
| Pattern (const Pattern &)=delete | |
| Pattern & | operator= (const Pattern &)=delete | 
| virtual | ~Pattern () | 
| void | set_matrix (const Matrix &matrix) | 
| Sets the pattern's transformation matrix to @matrix. | |
| void | get_matrix (Matrix &matrix) const | 
| Returns the pattern's transformation matrix. | |
| Matrix | get_matrix () const | 
| Returns the pattern's transformation matrix. | |
| Type | get_type () const | 
| Returns the type of the pattern. | |
| void | set_extend (Extend extend) | 
| Sets the mode to be used for drawing outside the area of a pattern. | |
| Extend | get_extend () const | 
| Gets the current extend mode See Cairo::Extend for details on the semantics of each extend strategy. | |
| cobject * | cobj () | 
| const cobject * | cobj () const | 
| void | reference () const | 
| void | unreference () const | 
| Static Public Member Functions | |
| static RefPtr< LinearGradient > | create (double x0, double y0, double x1, double y1) | 
| Create a new linear gradient Cairo::Pattern along the line defined by (x0, y0) and (x1, y1). | |
| Protected Member Functions | |
| LinearGradient (double x0, double y0, double x1, double y1) | |
|  Protected Member Functions inherited from Cairo::Gradient | |
| Gradient () | |
|  Protected Member Functions inherited from Cairo::Pattern | |
| Pattern () | |
| Additional Inherited Members | |
|  Public Types inherited from Cairo::Pattern | |
| enum class | Type { SOLID = CAIRO_PATTERN_TYPE_SOLID , SURFACE = CAIRO_PATTERN_TYPE_SURFACE , LINEAR = CAIRO_PATTERN_TYPE_LINEAR , RADIAL = CAIRO_PATTERN_TYPE_RADIAL } | 
| Type is used to describe the type of a given pattern.  More... | |
| enum class | Extend { NONE = CAIRO_EXTEND_NONE , REPEAT = CAIRO_EXTEND_REPEAT , REFLECT = CAIRO_EXTEND_REFLECT , PAD = CAIRO_EXTEND_PAD } | 
| Cairo::Extend is used to describe how pattern color/alpha will be determined for areas "outside" the pattern's natural area, (for example, outside the surface bounds or outside the gradient geometry).  More... | |
| typedef cairo_pattern_t | cobject | 
|  Protected Attributes inherited from Cairo::Pattern | |
| cobject * | m_cobject | 
| 
 | protected | 
| 
 | explicit | 
Create a C++ wrapper for the C instance.
This C++ instance should then be given to a RefPtr.
| cobject | The C instance. | 
| has_reference | Whether we already have a reference. Otherwise, the constructor will take an extra reference. | 
| 
 | override | 
| 
 | static | 
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().
| 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 | 
| void Cairo::LinearGradient::get_linear_points | ( | double & | x0, | 
| double & | y0, | ||
| double & | x1, | ||
| double & | y1 | ||
| ) | const | 
| 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.