Fix applying shifted operators

1 files changed, 56 insertions, 0 deletions

diff --git a/test/shifted-operator.c b/test/shifted-operator.c
new file mode 100644
index 000000000..c8b7cc737
--- /dev/null
+++ b/test/shifted-operator.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright © 2021 Anton Danilkin
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "cairo-test.h"
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_surface_t *recording_surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL);
+    cairo_t *cr2 = cairo_create (recording_surface);
+    cairo_translate (cr2, -30, -30);
+    cairo_rectangle (cr2, 0, 0, 120, 90);
+    cairo_set_source_rgba (cr2, 0.7, 0, 0, 0.8);
+    cairo_fill (cr2);
+    cairo_set_operator (cr2, CAIRO_OPERATOR_XOR);
+    cairo_rectangle (cr2, 40, 30, 120, 90);
+    cairo_set_source_rgba (cr2, 0, 0, 0.9, 0.4);
+    cairo_fill (cr2);
+
+    cairo_pattern_t *pattern = cairo_pattern_create_for_surface (recording_surface);
+    cairo_matrix_t matrix;
+    cairo_matrix_init_translate (&matrix, -30, -30);
+    cairo_pattern_set_matrix (pattern, &matrix);
+    cairo_set_source (cr, pattern);
+    cairo_paint (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (shifted_operator,
+	    "Test drawing a rectangle shifted into negative coordinates with an operator",
+	    "operator, transform, record", /* keywords */
+	    NULL, /* requirements */
+	    160, 120,
+	    NULL, draw)