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Cairo utilities

Cairo utilities

Object Hierarchy


Description

Functions

GO_CAIRO_CLAMP()

#define GO_CAIRO_CLAMP(x) CLAMP((x),-8000000,8000000)


GO_CAIRO_CLAMP_SNAP()

#define GO_CAIRO_CLAMP_SNAP(x,even) GO_CAIRO_CLAMP(even ? floor (x + .5):floor (x) + .5)


go_cairo_convert_data_from_pixbuf ()

void
go_cairo_convert_data_from_pixbuf (unsigned char *dst,
                                   unsigned char const *src,
                                   int width,
                                   int height,
                                   int rowstride);

Converts the pixel data stored in src in GDK_COLORSPACE_RGB pixbuf format to CAIRO_FORMAT_ARGB32 cairo format and move them to dst . If src == dst , pixel are converted in place.

Parameters

dst

a pointer to pixel data in cairo format

 

src

a pointer to pixel data in pixbuf format

 

width

image width

 

height

image height

 

rowstride

data rowstride

 

go_cairo_convert_data_to_pixbuf ()

void
go_cairo_convert_data_to_pixbuf (unsigned char *dst,
                                 unsigned char const *src,
                                 int width,
                                 int height,
                                 int rowstride);

Converts the pixel data stored in src in CAIRO_FORMAT_ARGB32 cairo format to GDK_COLORSPACE_RGB pixbuf format and move them to dst . If src == dst , pixel are converted in place.

Parameters

dst

a pointer to pixel data in pixbuf format

 

src

a pointer to pixel data in cairo format

 

width

image width

 

height

image height

 

rowstride

data rowstride

 

go_cairo_emit_svg_path ()

void
go_cairo_emit_svg_path (cairo_t *cr,
                        char const *path);

Emits a path described as a SVG path string (d property of path elements) to a cairo context.

Parameters

cr

a cairo context

 

path

a SVG path

 

go_cairo_surface_is_vector ()

gboolean
go_cairo_surface_is_vector (cairo_surface_t const *surface);

Returns

Types and Values

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