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GIMP Widgets Library Reference Manual | ![]() |
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Top | Description |
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)
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
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
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
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
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
#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
#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