1 files changed, 74 insertions, 0 deletions
diff --git a/doc/tutorial/src/cairo-tutorial-png.h b/doc/tutorial/src/cairo-tutorial-png.h
new file mode 100644
index 00000000..a6800c8b
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+++ b/doc/tutorial/src/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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 
+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);
+
+    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;
+}