Synopsis
GOPath; void (*GOPathClosePathFunc) (void *closure
); void (*GOPathCurveToFunc) (void *closure
,GOPathPoint const *point0
,GOPathPoint const *point1
,GOPathPoint const *point2
); void (*GOPathLineToFunc) (void *closure
,GOPathPoint const *point
); void (*GOPathMoveToFunc) (void *closure
,GOPathPoint const *point
); enum GOPathDirection; enum GOPathOptions; GOPathPoint; GOPath * go_path_append (GOPath *path1
,GOPath const *path2
); void go_path_arc (GOPath *path
,double cx
,double cy
,double rx
,double ry
,double th0
,double th1
); void go_path_arc_to (GOPath *path
,double cx
,double cy
,double rx
,double ry
,double th0
,double th1
); void go_path_clear (GOPath *path
); void go_path_close (GOPath *path
); GOPath * go_path_copy (GOPath const *path
); void go_path_curve_to (GOPath *path
,double x0
,double y0
,double x1
,double y1
,double x2
,double y2
); void go_path_free (GOPath *path
); GOPathOptions go_path_get_options (GOPath const *path
); void go_path_interpret (GOPath const *path
,GOPathDirection direction
,GOPathMoveToFunc move_to
,GOPathLineToFunc line_to
,GOPathCurveToFunc curve_to
,GOPathClosePathFunc close_path
,void *closure
); void go_path_line_to (GOPath *path
,double x
,double y
); void go_path_move_to (GOPath *path
,double x
,double y
); GOPath * go_path_new (void
); GOPath * go_path_new_from_odf_enhanced_path (char const *src
,GHashTable const *variables
); GOPath * go_path_new_from_svg (char const *src
); void go_path_pie_wedge (GOPath *path
,double cx
,double cy
,double rx
,double ry
,double th0
,double th1
); void go_path_rectangle (GOPath *path
,double x
,double y
,double width
,double height
); GOPath * go_path_ref (GOPath *path
); void go_path_ring_wedge (GOPath *path
,double cx
,double cy
,double rx_out
,double ry_out
,double rx_in
,double ry_in
,double th0
,double th1
); void go_path_set_options (GOPath *path
,GOPathOptions options
); void go_path_to_cairo (GOPath const *path
,GOPathDirection direction
,cairo_t *cr
); char * go_path_to_svg (GOPath *path
); GOPath * go_path_scale (GOPath *path
,double scale_x
,double scale_y
);
Details
GOPathCurveToFunc ()
void (*GOPathCurveToFunc) (void *closure
,GOPathPoint const *point0
,GOPathPoint const *point1
,GOPathPoint const *point2
);
enum GOPathDirection
typedef enum { GO_PATH_DIRECTION_FORWARD, GO_PATH_DIRECTION_BACKWARD } GOPathDirection;
enum GOPathOptions
typedef enum { GO_PATH_OPTIONS_SNAP_COORDINATES = 1<<0, GO_PATH_OPTIONS_SNAP_WIDTH = 1<<1, GO_PATH_OPTIONS_SHARP = 3 } GOPathOptions;
go_path_append ()
GOPath * go_path_append (GOPath *path1
,GOPath const *path2
);
Appends path2
at the end of path1
.
go_path_arc ()
void go_path_arc (GOPath *path
,double cx
,double cy
,double rx
,double ry
,double th0
,double th1
);
go_path_arc_to ()
void go_path_arc_to (GOPath *path
,double cx
,double cy
,double rx
,double ry
,double th0
,double th1
);
go_path_curve_to ()
void go_path_curve_to (GOPath *path
,double x0
,double y0
,double x1
,double y1
,double x2
,double y2
);
go_path_free ()
void go_path_free (GOPath *path
);
Decrements references count and frees all memory allocated for path
if
references count reaches 0.
|
a GOPath |
go_path_interpret ()
void go_path_interpret (GOPath const *path
,GOPathDirection direction
,GOPathMoveToFunc move_to
,GOPathLineToFunc line_to
,GOPathCurveToFunc curve_to
,GOPathClosePathFunc close_path
,void *closure
);
This function can be used to draw a path or for other purposes. To draw using cairo, the closure argument should be a valid cairo_t.
|
GOPath |
|
GOPathDirection |
|
the callback for move to. [scope call] |
|
the callback for drawing a line. [scope call] |
|
the callback for drawing a bezier cubic spline. [scope call] |
|
the callback for closing the path. [scope call] |
|
data to pass as first argument to the callbacks. |
go_path_new_from_odf_enhanced_path ()
GOPath * go_path_new_from_odf_enhanced_path (char const *src
,GHashTable const *variables
);
go_path_new_from_svg ()
GOPath * go_path_new_from_svg (char const *src
);
|
an SVG path. |
Returns : |
the newly allocated GOPath. [transfer full] |
go_path_pie_wedge ()
void go_path_pie_wedge (GOPath *path
,double cx
,double cy
,double rx
,double ry
,double th0
,double th1
);
go_path_rectangle ()
void go_path_rectangle (GOPath *path
,double x
,double y
,double width
,double height
);
go_path_ref ()
GOPath * go_path_ref (GOPath *path
);
Increments references count to path
.
|
a GOPath |
Returns : |
the path with an incremented references count. |
go_path_ring_wedge ()
void go_path_ring_wedge (GOPath *path
,double cx
,double cy
,double rx_out
,double ry_out
,double rx_in
,double ry_in
,double th0
,double th1
);
go_path_set_options ()
void go_path_set_options (GOPath *path
,GOPathOptions options
);
Change the rendering options for path
using
GO_PATH_OPTIONS_SNAP_COORDINATES
GO_PATH_OPTIONS_SNAP_WIDTH
GO_PATH_OPTIONS_SHARP
|
a GOPath |
|
GOPathOptions |
go_path_to_cairo ()
void go_path_to_cairo (GOPath const *path
,GOPathDirection direction
,cairo_t *cr
);
Renders the path to the cairo context using its current settings.
|
GOPath |
|
GOPathDirection |
|
cairo_t |
go_path_to_svg ()
char * go_path_to_svg (GOPath *path
);
Builds an svg path from path
.
|
a GOPath |
Returns : |
the svg:d string. [transfer full] |