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-rw-r--r--libs/cairo-1.16.0/test/transforms.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/transforms.c b/libs/cairo-1.16.0/test/transforms.c
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+++ b/libs/cairo-1.16.0/test/transforms.c
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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: Carl Worth <cworth@cworth.org>
+ */
+
+#include "cairo-test.h"
+
+#define WIDTH 45
+#define HEIGHT 30
+
+static void
+draw_L_shape (cairo_t *cr)
+{
+ cairo_move_to (cr, 0, 0);
+ cairo_rel_line_to (cr, 0, 10);
+ cairo_rel_line_to (cr, 5, 0);
+
+ cairo_save (cr);
+ cairo_identity_matrix (cr);
+ cairo_set_line_width (cr, 2.0);
+ cairo_stroke (cr);
+ cairo_restore (cr);
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+ /* We draw in the default black, so paint white first. */
+ cairo_save (cr);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */
+ cairo_paint (cr);
+ cairo_restore (cr);
+
+ cairo_translate (cr, 5, 5);
+
+ draw_L_shape (cr);
+
+ cairo_translate (cr, 10, 0);
+
+ cairo_save (cr);
+ {
+ cairo_scale (cr, 2, 2);
+ draw_L_shape (cr);
+ }
+ cairo_restore (cr);
+
+ cairo_translate (cr, 15, 0);
+
+ cairo_save (cr);
+ {
+ cairo_rotate (cr, M_PI / 2.0);
+ draw_L_shape (cr);
+ }
+ cairo_restore (cr);
+
+ cairo_translate (cr, 5, 0);
+
+ cairo_save (cr);
+ {
+ cairo_matrix_t skew_y = {
+ 1, -1,
+ 0, 1,
+ 0, 0
+ };
+ cairo_transform (cr, &skew_y);
+ draw_L_shape (cr);
+ }
+ cairo_restore (cr);
+
+ cairo_translate (cr, 5, 10);
+
+ cairo_save (cr);
+ {
+ cairo_matrix_t skew_x = {
+ 1.0, 0.0,
+ -0.5, 1.0,
+ 0.0, 0.0
+ };
+ cairo_transform (cr, &skew_x);
+ draw_L_shape (cr);
+ }
+ cairo_restore (cr);
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (transforms,
+ "Test various transformations.",
+ "transforms, api", /* keywords */
+ NULL, /* requirements */
+ WIDTH, HEIGHT,
+ NULL, draw)