add cairo

1 files changed, 222 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/user-font-proxy.c b/libs/cairo-1.16.0/test/user-font-proxy.c
new file mode 100644
index 0000000..e4063f0
--- /dev/null
+++ b/libs/cairo-1.16.0/test/user-font-proxy.c
@@ -0,0 +1,222 @@
+/*
+ * Copyright © 2006, 2008 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.
+ *
+ * Contributor(s):
+ *	Kristian Høgsberg <krh@redhat.com>
+ *	Behdad Esfahbod <behdad@behdad.org>
+ */
+
+#include "cairo-test.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+
+/*#define ROTATED 1*/
+
+#define BORDER 10
+#define TEXT_SIZE 64
+#define WIDTH  (TEXT_SIZE * 12 + 2*BORDER)
+#ifndef ROTATED
+ #define HEIGHT ((TEXT_SIZE + 2*BORDER)*2)
+#else
+ #define HEIGHT WIDTH
+#endif
+#define TEXT   "geez... cairo user-font"
+
+static cairo_user_data_key_t fallback_font_key;
+
+static cairo_status_t
+test_scaled_font_init (cairo_scaled_font_t  *scaled_font,
+		       cairo_t              *cr,
+		       cairo_font_extents_t *extents)
+{
+    cairo_status_t status;
+
+    cairo_set_font_face (cr,
+			 cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
+							&fallback_font_key));
+
+    status = cairo_scaled_font_set_user_data (scaled_font,
+					      &fallback_font_key,
+					      cairo_scaled_font_reference (cairo_get_scaled_font (cr)),
+					      (cairo_destroy_func_t) cairo_scaled_font_destroy);
+    if (unlikely (status)) {
+	cairo_scaled_font_destroy (cairo_get_scaled_font (cr));
+	return status;
+    }
+
+    cairo_font_extents (cr, extents);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+test_scaled_font_render_glyph (cairo_scaled_font_t  *scaled_font,
+			       unsigned long         glyph,
+			       cairo_t              *cr,
+			       cairo_text_extents_t *extents)
+{
+    cairo_glyph_t cairo_glyph;
+
+    cairo_glyph.index = glyph;
+    cairo_glyph.x = 0;
+    cairo_glyph.y = 0;
+
+    cairo_set_font_face (cr,
+			 cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font),
+							&fallback_font_key));
+
+    cairo_show_glyphs (cr, &cairo_glyph, 1);
+    cairo_glyph_extents (cr, &cairo_glyph, 1, extents);
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+test_scaled_font_text_to_glyphs (cairo_scaled_font_t        *scaled_font,
+				 const char	            *utf8,
+				 int		             utf8_len,
+				 cairo_glyph_t	           **glyphs,
+				 int		            *num_glyphs,
+				 cairo_text_cluster_t      **clusters,
+				 int		            *num_clusters,
+				 cairo_text_cluster_flags_t *cluster_flags)
+{
+  cairo_scaled_font_t *fallback_scaled_font;
+
+  fallback_scaled_font = cairo_scaled_font_get_user_data (scaled_font,
+							  &fallback_font_key);
+
+  return cairo_scaled_font_text_to_glyphs (fallback_scaled_font, 0, 0,
+					   utf8, utf8_len,
+					   glyphs, num_glyphs,
+					   clusters, num_clusters, cluster_flags);
+}
+
+static cairo_status_t
+_user_font_face_create (cairo_font_face_t **out)
+{
+    cairo_font_face_t *user_font_face;
+    cairo_font_face_t *fallback_font_face;
+    cairo_status_t status;
+
+    user_font_face = cairo_user_font_face_create ();
+    cairo_user_font_face_set_init_func             (user_font_face, test_scaled_font_init);
+    cairo_user_font_face_set_render_glyph_func     (user_font_face, test_scaled_font_render_glyph);
+    cairo_user_font_face_set_text_to_glyphs_func   (user_font_face, test_scaled_font_text_to_glyphs);
+
+    /* This also happens to be default font face on cairo_t, so does
+     * not make much sense here.  For demonstration only.
+     */
+    fallback_font_face = cairo_toy_font_face_create (CAIRO_TEST_FONT_FAMILY " Sans",
+						     CAIRO_FONT_SLANT_NORMAL,
+						     CAIRO_FONT_WEIGHT_NORMAL);
+
+    status = cairo_font_face_set_user_data (user_font_face,
+					    &fallback_font_key,
+					    fallback_font_face,
+					    (cairo_destroy_func_t) cairo_font_face_destroy);
+    if (status) {
+	cairo_font_face_destroy (fallback_font_face);
+	cairo_font_face_destroy (user_font_face);
+	return status;
+    }
+
+    *out = user_font_face;
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    const char text[] = TEXT;
+    cairo_font_extents_t font_extents;
+    cairo_text_extents_t extents;
+    cairo_font_face_t *font_face;
+    cairo_status_t status;
+
+    cairo_set_source_rgb (cr, 1, 1, 1);
+    cairo_paint (cr);
+
+#ifdef ROTATED
+    cairo_translate (cr, TEXT_SIZE, 0);
+    cairo_rotate (cr, .6);
+#endif
+
+    status = _user_font_face_create (&font_face);
+    if (status) {
+	return cairo_test_status_from_status (cairo_test_get_context (cr),
+					      status);
+    }
+
+    cairo_set_font_face (cr, font_face);
+    cairo_font_face_destroy (font_face);
+
+    cairo_set_font_size (cr, TEXT_SIZE);
+
+    cairo_font_extents (cr, &font_extents);
+    cairo_text_extents (cr, text, &extents);
+
+    /* logical boundaries in red */
+    cairo_move_to (cr, 0, BORDER);
+    cairo_rel_line_to (cr, WIDTH, 0);
+    cairo_move_to (cr, 0, BORDER + font_extents.ascent);
+    cairo_rel_line_to (cr, WIDTH, 0);
+    cairo_move_to (cr, 0, BORDER + font_extents.ascent + font_extents.descent);
+    cairo_rel_line_to (cr, WIDTH, 0);
+    cairo_move_to (cr, BORDER, 0);
+    cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE);
+    cairo_move_to (cr, BORDER + extents.x_advance, 0);
+    cairo_rel_line_to (cr, 0, 2*BORDER + TEXT_SIZE);
+    cairo_set_source_rgb (cr, 1, 0, 0);
+    cairo_set_line_width (cr, 2);
+    cairo_stroke (cr);
+
+    /* ink boundaries in green */
+    cairo_rectangle (cr,
+		     BORDER + extents.x_bearing, BORDER + font_extents.ascent + extents.y_bearing,
+		     extents.width, extents.height);
+    cairo_set_source_rgb (cr, 0, 1, 0);
+    cairo_set_line_width (cr, 2);
+    cairo_stroke (cr);
+
+    /* text in gray */
+    cairo_set_source_rgb (cr, 0, 0, 0);
+    cairo_move_to (cr, BORDER, BORDER + font_extents.ascent);
+    cairo_show_text (cr, text);
+
+
+    /* filled version of text in light blue */
+    cairo_set_source_rgb (cr, 0, 0, 1);
+    cairo_move_to (cr, BORDER, BORDER + font_extents.height + BORDER + font_extents.ascent);
+    cairo_text_path (cr, text);
+    cairo_fill (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (user_font_proxy,
+	    "Tests a user-font using a native font in its render_glyph",
+	    "font, user-font", /* keywords */
+	    "cairo >= 1.7.4", /* requirements */
+	    WIDTH, HEIGHT,
+	    NULL, draw)