cairodriver/color.c

Go to the documentation of this file.

/*!
   \file lib/cairodriver/color.c
 
   \brief GRASS cairo display driver - colors management
 
   (C) 2007-2008 by Lars Ahlzen and the GRASS Development Team
 
   This program is free software under the GNU General Public License
   (>=v2). Read the file COPYING that comes with GRASS for details.
 
   \author Lars Ahlzen <lars ahlzen.com> (original contributor)
   \author Glynn Clements
 */
 
#include "cairodriver.h"
 
/*!
   \brief Set source color (opaque)
 
   This color will then be used for any subsequent drawing operation
   until a new source pattern is set.
 
   \param r red color value
   \param g green color value
   \param b blue color value
 */
void Cairo_Color(int r, int g, int b)
{
    G_debug(3, "Cairo_Color: %d,%d,%d", r, g, b);
 
    cairo_set_source_rgba(cairo, CAIROCOLOR(r), CAIROCOLOR(g), CAIROCOLOR(b),
                          1.0);
 
    G_debug(3, "Set color to: %g %g %g", CAIROCOLOR(r), CAIROCOLOR(g),
            CAIROCOLOR(b));
}