----- Original Message -----
Subject: Re: goocanvas vs crcanvas,which better?
Is there standard facility for creating cairo context for pixbuf? Like
gdk_cairo_create() for drawables.
pixels = gdk_pixbuf_get_pixels (pixbuf);
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
surface = cairo_image_surface_create_for_data (
pixels,
CAIRO_FORMAT_ARGB32,
width, height, rowstride
);
This works if the the pixbuf has alpha;
the only flaw is that the red and blue component are exchanged,
so the function
cairo_set_source_rgb (cr, red, green, blue);
must be used as if it would be
cairo_set_source_rgb (cr, blue, green, red);
P.A.
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