| GOffice Reference Manual | ||||
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| Top | Description | Object Hierarchy | ||||
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);
void (*GOPathCurveToFunc) (void *closure,GOPathPoint const *point0,GOPathPoint const *point1,GOPathPoint const *point2);
typedef enum {
GO_PATH_DIRECTION_FORWARD,
GO_PATH_DIRECTION_BACKWARD
} GOPathDirection;
typedef enum {
GO_PATH_OPTIONS_SNAP_COORDINATES = 1<<0,
GO_PATH_OPTIONS_SNAP_WIDTH = 1<<1,
GO_PATH_OPTIONS_SHARP = 3
} GOPathOptions;
GOPath * go_path_append (GOPath *path1,GOPath const *path2);
Appends path2 at the end of path1.
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_curve_to (GOPath *path,double x0,double y0,double x1,double y1,double x2,double y2);
void go_path_free (GOPath *path);
Decrements references count and frees all memory allocated for path if
references count reaches 0.
|
a GOPath |
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] |
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data to pass as first argument to the callbacks. |
GOPath * go_path_new_from_odf_enhanced_path (char const *src,GHashTable const *variables);
GOPath * go_path_new_from_svg (char const *src);
|
an SVG path. |
Returns : |
the newly allocated GOPath. [transfer full] |
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);
Increments references count to path.
|
a GOPath |
Returns : |
the path with an incremented references count. |
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);
Change the rendering options for path using
GO_PATH_OPTIONS_SNAP_COORDINATES
GO_PATH_OPTIONS_SNAP_WIDTH
GO_PATH_OPTIONS_SHARP
|
a GOPath |
|
GOPathOptions |
void go_path_to_cairo (GOPath const *path,GOPathDirection direction,cairo_t *cr);
Renders the path to the cairo context using its current settings.
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GOPath |
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GOPathDirection |
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cairo_t |
char * go_path_to_svg (GOPath *path);
Builds an svg path from path.
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a GOPath |
Returns : |
the svg:d string. [transfer full] |