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cairodriver/erase.c
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/*!
\file lib/cairodriver/erase.c
\brief GRASS cairo display driver - erase screen
(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 Erase screen
*/
void Cairo_Erase(void)
{
G_debug(1, "Cairo_Erase");
cairo_save(cairo);
cairo_set_source_rgba(cairo, ca.bgcolor_r, ca.bgcolor_g, ca.bgcolor_b,
ca.bgcolor_a);
cairo_set_operator(cairo, CAIRO_OPERATOR_SOURCE);
cairo_paint(cairo);
cairo_restore(cairo);
ca.modified = 1;
return;
}
Cairo_Erase
void Cairo_Erase(void)
Erase screen.
Definition cairodriver/erase.c:20
cairodriver.h
GRASS cairo display driver - header file.
ca
struct cairo_state ca
Definition cairodriver/graph.c:42
cairo
cairo_t * cairo
Definition cairodriver/graph.c:46
G_debug
int G_debug(int level, const char *msg,...)
Print debugging message.
Definition debug.c:66