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+/*
+ * Copyright © 2005 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of
+ * Red Hat, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Red Hat, Inc. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+ * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Kristian Høgsberg <krh@redhat.com>
+ */
+
+#include "cairo-test.h"
+
+#include <stdio.h>
+
+#include <cairo-svg.h>
+
+/* Test SVG clipping */
+
+#define WIDTH_IN_POINTS 600
+#define HEIGHT_IN_POINTS 600
+#define BASENAME "svg-clip.out"
+
+static void
+test_clip (cairo_t *cr, double width, double height)
+{
+ cairo_t *cr2;
+
+ /* Basic test; set a square clip and draw a circle to be clipped
+ * against it.*/
+
+ cairo_rectangle (cr, 100, 100, 400, 400);
+ cairo_clip (cr);
+ cairo_arc (cr, 300, 300, 210, 0, 2 * M_PI);
+ cairo_set_source_rgb (cr, 1, 0, 0);
+ cairo_fill (cr);
+
+ /* Add a plus shaped clip path to the square clip and draw a big
+ * green square to test the new clip path. */
+
+ cairo_save (cr);
+
+ cairo_rectangle (cr, 250, 100, 100, 400);
+ cairo_rectangle (cr, 100, 250, 400, 100);
+ cairo_clip (cr);
+
+ cairo_rectangle (cr, 0, 0, 600, 600);
+ cairo_set_source_rgb (cr, 0, 1, 0);
+ cairo_fill (cr);
+
+ cairo_restore (cr);
+
+ /* Set a bezier shape in addition to the rectangle clip set before
+ * the cairo_save() to verify that we successfully removed the
+ * plus shaped clip path and can set a new clip.*/
+
+ cairo_move_to (cr, 600, 0);
+ cairo_curve_to (cr, 300, 600, 0, 300, 600, 0);
+ cairo_clip (cr);
+
+ cairo_rectangle (cr, 0, 0, 600, 600);
+ cairo_set_source_rgb (cr, 0, 0, 1);
+ cairo_fill (cr);
+
+ /* Create a new context for this surface to test overlapped
+ * drawing from two contexts */
+ cr2 = cairo_create (cairo_get_group_target (cr));
+
+ /* Using the new context, draw a black vertical line, which should
+ * appear unclipped on top of everything drawn so far. */
+ cairo_move_to (cr2, 110, 0);
+ cairo_line_to (cr2, 110, 600);
+ cairo_stroke (cr2);
+
+ /* Using the first context, draw another black vertical line.
+ * This line should be clipped agaist the bezier clipping path set
+ * earlier. */
+ cairo_set_source_rgb (cr, 0, 0, 0);
+ cairo_move_to (cr, 400, 0);
+ cairo_line_to (cr, 400, 600);
+ cairo_stroke (cr);
+
+ cairo_destroy (cr2);
+
+ /* Test reset clip. Draw a transparent black circle over
+ * everything. Specifically, make sure the circle extends outside
+ * the square clip set at the top of this function. */
+ cairo_reset_clip (cr);
+ cairo_arc (cr, 300, 300, 220, 0, 2 * M_PI);
+ cairo_set_source_rgba (cr, 0, 0, 0, 0.2);
+ cairo_fill (cr);
+}
+
+static cairo_test_status_t
+preamble (cairo_test_context_t *ctx)
+{
+ cairo_t *cr;
+ cairo_surface_t *surface;
+ char *filename;
+ const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : ".";
+
+ if (! cairo_test_is_target_enabled (ctx, "svg11") &&
+ ! cairo_test_is_target_enabled (ctx, "svg12"))
+ {
+ return CAIRO_TEST_UNTESTED;
+ }
+
+ xasprintf (&filename, "%s/%s.svg", path, BASENAME);
+ surface = cairo_svg_surface_create (filename,
+ WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
+ if (cairo_surface_status (surface)) {
+ cairo_test_log (ctx,
+ "Failed to create svg surface for file %s: %s\n",
+ filename, cairo_status_to_string (cairo_surface_status (surface)));
+ free (filename);
+ return CAIRO_TEST_FAILURE;
+ }
+
+ cr = cairo_create (surface);
+
+ test_clip (cr, WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
+ cairo_show_page (cr);
+
+ cairo_destroy (cr);
+ cairo_surface_destroy (surface);
+
+ printf ("svg-clip: Please check %s to make sure it looks happy.\n",
+ filename);
+ free (filename);
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (svg_clip,
+ "Test SVG clipping",
+ "svg, clip", /* keywords */
+ NULL, /* requirements */
+ 0, 0,
+ preamble, NULL)