1 files changed, 109 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/clip-nesting.c b/libs/cairo-1.16.0/test/clip-nesting.c
new file mode 100644
index 0000000..a9227ec
--- /dev/null
+++ b/libs/cairo-1.16.0/test/clip-nesting.c
@@ -0,0 +1,109 @@
+/*
+ * 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: Owen Taylor <otaylor@redhat.com>
+ */
+
+#include "cairo-test.h"
+#include <math.h>
+#include <stdio.h>
+
+#define SIZE 100
+#define BORDER 10
+#define LINE_WIDTH 20
+
+static void
+_propagate_status (cairo_t *dst, cairo_t *src)
+{
+    cairo_path_t path;
+
+    path.status = cairo_status (src);
+    if (path.status) {
+	path.num_data = 0;
+	path.data = NULL;
+	cairo_append_path (dst, &path);
+    }
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_surface_t *target_surface;
+    cairo_t *cr2, *cr3;
+
+    target_surface = cairo_get_group_target (cr);
+
+    cr2 = cairo_create (target_surface);
+
+    /* Draw a diagonal line and clip to it */
+
+    cairo_move_to (cr2, BORDER,                     BORDER);
+    cairo_line_to (cr2, BORDER + LINE_WIDTH,        BORDER);
+    cairo_line_to (cr2, SIZE - BORDER,              SIZE - BORDER);
+    cairo_line_to (cr2, SIZE - BORDER - LINE_WIDTH, SIZE - BORDER);
+
+    cairo_clip (cr2);
+    cairo_set_source_rgb (cr2, 0, 0, 1); /* Blue */
+    cairo_paint (cr2);
+
+    /* Clipping affects this cairo_t */
+
+    cairo_set_source_rgb (cr2, 1, 1, 1); /* White */
+    cairo_rectangle (cr2,
+		     SIZE / 2 - LINE_WIDTH / 2, BORDER,
+		     LINE_WIDTH,                SIZE - 2 * BORDER);
+    cairo_fill (cr2);
+
+    /* But doesn't affect another cairo_t that we create temporarily for
+     * the same surface
+     */
+    cr3 = cairo_create (target_surface);
+    cairo_set_source_rgb (cr3, 1, 1, 1); /* White */
+    cairo_rectangle (cr3,
+		     SIZE - BORDER - LINE_WIDTH, BORDER,
+		     LINE_WIDTH,                 SIZE - 2 * BORDER);
+    cairo_fill (cr3);
+
+    _propagate_status (cr, cr3);
+    cairo_destroy (cr3);
+
+    _propagate_status (cr, cr2);
+    cairo_destroy (cr2);
+
+    /* And doesn't affect anything after this cairo_t is destroyed */
+
+    cairo_set_source_rgb (cr, 1, 1, 1); /* White */
+    cairo_rectangle (cr,
+		     BORDER,     BORDER,
+		     LINE_WIDTH, SIZE - 2 * BORDER);
+    cairo_fill (cr);
+
+    return CAIRO_TEST_SUCCESS;
+
+}
+
+CAIRO_TEST (clip_nesting,
+	    "Test clipping with multiple contexts for the same surface",
+	    "clip", /* keywords */
+	    NULL, /* requirements */
+	    SIZE, SIZE,
+	    NULL, draw)