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-rw-r--r--doc/tutorial/src/include/cairo-tutorial-png.h74
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diff --git a/doc/tutorial/src/include/cairo-tutorial-png.h b/doc/tutorial/src/include/cairo-tutorial-png.h
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+/* cairo-tutorial-png.h - a tutorial framework for cairo to write a PNG image
+ *
+ * Copyright © 2005, Carl Worth
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
+ */
+
+#include <cairo.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+
+#ifndef WIDTH
+#define WIDTH 400
+#endif
+
+#ifndef HEIGHT
+#define HEIGHT 400
+#endif
+
+static void
+draw (cairo_t *cr, int width, int height);
+
+int
+main (int argc, char **argv)
+{
+ cairo_surface_t *surface;
+ cairo_t *cr;
+ char *filename, *dash;
+
+ surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+ WIDTH, HEIGHT);
+
+ cr = cairo_create (surface);
+
+ draw (cr, WIDTH, HEIGHT);
+
+ filename = strdup (argv[0]);
+ assert (filename != NULL);
+
+ dash = strrchr (filename, '-');
+
+ if (strcmp (dash, "-png") == 0) {
+ *dash = '.';
+ } else {
+ char *new_filename;
+ new_filename = malloc (strlen (filename) + 5);
+ sprintf (new_filename, "%s.png", filename);
+ free (filename);
+ filename = new_filename;
+ }
+
+ cairo_surface_write_to_png (surface, filename);
+
+ free (filename);
+
+ cairo_surface_destroy (surface);
+ cairo_destroy (cr);
+
+ return 0;
+}