Add new text-transform test

Previously, the test suite wasn't supplying any coverage of transformed
text rendering.

1 files changed, 113 insertions, 0 deletions

diff --git a/test/text-transform.c b/test/text-transform.c
new file mode 100644
index 000000000..0a886db5b
--- /dev/null
+++ b/test/text-transform.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright © 2006 Mozilla Corporation
+ *
+ * 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
+ * Mozilla Corporation not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Mozilla Corporation makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * MOZILLA CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL MOZILLA CORPORATION 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: Vladimir Vukicevic <vladimir@pobox.com>
+ */
+
+#include "cairo-test.h"
+
+static cairo_test_draw_function_t draw;
+
+#define SIZE 100
+#define PAD 5
+
+#define FONT_SIZE 32.0
+
+const char png_filename[] = "romedalen.png";
+
+cairo_test_t test = {
+    "text-transform",
+    "Test various applications of the font matrix",
+    SIZE, SIZE,
+    draw
+};
+
+void draw_text (cairo_t *cr);
+
+void
+draw_text (cairo_t *cr)
+{
+    cairo_matrix_t tm;
+
+    /* skew */
+    cairo_matrix_init (&tm, 1, 0,
+                       -0.25, 1,
+                       0, 0);
+    cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE);
+    cairo_set_font_matrix (cr, &tm);
+
+    cairo_new_path (cr);
+    cairo_move_to (cr, 50, SIZE-PAD);
+    cairo_show_text (cr, "A");
+
+    /* rotate and scale */
+    cairo_matrix_init_rotate (&tm, M_PI / 2);
+    cairo_matrix_scale (&tm, FONT_SIZE, FONT_SIZE * 2.0);
+    cairo_set_font_matrix (cr, &tm);
+
+    cairo_new_path (cr);
+    cairo_move_to (cr, PAD, PAD + 25);
+    cairo_show_text (cr, "A");
+
+    cairo_matrix_init_rotate (&tm, M_PI / 2);
+    cairo_matrix_scale (&tm, FONT_SIZE * 2.0, FONT_SIZE);
+    cairo_set_font_matrix (cr, &tm);
+
+    cairo_new_path (cr);
+    cairo_move_to (cr, PAD, PAD + 50);
+    cairo_show_text (cr, "A");
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    cairo_pattern_t *pattern;
+
+    pattern = cairo_test_create_pattern_from_png (png_filename);
+    cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
+
+    cairo_set_source_rgb (cr, 1., 1., 1.);
+    cairo_paint (cr);
+
+    cairo_set_source_rgb (cr, 0., 0., 0.);
+
+    cairo_select_font_face (cr, "Bitstream Vera Sans",
+			    CAIRO_FONT_SLANT_NORMAL,
+			    CAIRO_FONT_WEIGHT_NORMAL);
+
+    draw_text (cr);
+
+    cairo_translate (cr, SIZE, SIZE);
+    cairo_rotate (cr, M_PI);
+
+    cairo_set_source (cr, pattern);
+
+    draw_text (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+int
+main (void)
+{
+    return cairo_test (&test);
+}