gimpcairo-utils

gimpcairo-utils —

Synopsis

void                gimp_cairo_set_source_rgb           (cairo_t *cr,
                                                         const GimpRGB *color);
void                gimp_cairo_set_source_rgba          (cairo_t *cr,
                                                         const GimpRGB *color);
gboolean            gimp_cairo_set_focus_line_pattern   (cairo_t *cr,
                                                         GtkWidget *widget);
cairo_pattern_t *   gimp_cairo_checkerboard_create      (cairo_t *cr,
                                                         gint size,
                                                         const GimpRGB *light,
                                                         const GimpRGB *dark);
cairo_surface_t *   gimp_cairo_surface_create_from_pixbuf
                                                        (GdkPixbuf *pixbuf);
#define             GIMP_CAIRO_RGB24_SET_PIXEL          (d, r, g, b)
#define             GIMP_CAIRO_ARGB32_SET_PIXEL         (d, r, g, b, a)

Description

Details

gimp_cairo_set_source_rgb ()

void                gimp_cairo_set_source_rgb           (cairo_t *cr,
                                                         const GimpRGB *color);

Sets the source pattern within cr to the solid opaque color described by color.

This function calls cairo_set_source_rgb() for you.

`cr` :	Cairo context
`color` :	GimpRGB color

Since GIMP 2.6

gimp_cairo_set_source_rgba ()

void                gimp_cairo_set_source_rgba          (cairo_t *cr,
                                                         const GimpRGB *color);

Sets the source pattern within cr to the solid translucent color described by color.

This function calls cairo_set_source_rgba() for you.

`cr` :	Cairo context
`color` :	GimpRGB color

Since GIMP 2.6

gimp_cairo_set_focus_line_pattern ()

gboolean            gimp_cairo_set_focus_line_pattern   (cairo_t *cr,
                                                         GtkWidget *widget);

Sets color and dash pattern for stroking a focus line on the given cr. The line pattern is taken from widget.

`cr` :	Cairo context
`widget` :	widget to draw the focus indicator on
Returns :	`TRUE` if the widget style has a focus line pattern, `FALSE` otherwise

Since GIMP 2.6

gimp_cairo_checkerboard_create ()

cairo_pattern_t *   gimp_cairo_checkerboard_create      (cairo_t *cr,
                                                         gint size,
                                                         const GimpRGB *light,
                                                         const GimpRGB *dark);

Create a repeating checkerboard pattern.

`cr` :	Cairo context
`size` :	check size
`light` :	light check color or `NULL` to use the default light gray
`dark` :	dark check color or `NULL` to use the default dark gray
Returns :	a new Cairo pattern that can be used as a source on `cr`.

Since GIMP 2.6

gimp_cairo_surface_create_from_pixbuf ()

cairo_surface_t *   gimp_cairo_surface_create_from_pixbuf
                                                        (GdkPixbuf *pixbuf);

Create a Cairo image surface from a GdkPixbuf.

You should avoid calling this function as there are probably more efficient ways of achieving the result you are looking for.

`pixbuf` :	a GdkPixbuf
Returns :

Since GIMP 2.6

GIMP_CAIRO_RGB24_SET_PIXEL()

#define             GIMP_CAIRO_RGB24_SET_PIXEL(d, r, g, b)

Sets a single pixel in an Cairo image surface in CAIRO_FORMAT_RGB24.

`d` :	pointer to the destination buffer
`r` :	red component
`g` :	green component
`b` :	blue component

Since GIMP 2.6

GIMP_CAIRO_ARGB32_SET_PIXEL()

#define             GIMP_CAIRO_ARGB32_SET_PIXEL(d, r, g, b, a)

Sets a single pixel in an Cairo image surface in CAIRO_FORMAT_ARGB32.

`d` :	pointer to the destination buffer
`r` :	red component, not pre-multiplied
`g` :	green component, not pre-multiplied
`b` :	blue component, not pre-multiplied
`a` :	alpha component

Since GIMP 2.6

			GIMP Widgets Library Reference Manual
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