summaryrefslogtreecommitdiff
path: root/tests/test-layout.c
diff options
context:
space:
mode:
authorMatthias Clasen <mclasen@redhat.com>2014-08-30 20:20:00 -0400
committerMatthias Clasen <mclasen@redhat.com>2014-08-30 20:20:00 -0400
commit0068b78276c4ac7df95d97fa270a5e8ca4b58348 (patch)
tree17ea02a2981883c9b230b3022e3fbc32a55bcd81 /tests/test-layout.c
parent92e7b73e27f54db86d58dcb5b4ddaafb32101980 (diff)
downloadpango-0068b78276c4ac7df95d97fa270a5e8ca4b58348.tar.gz
Add tests for PangoLayout
This tests works similar to the markup parser tests - we populate a layout with known data, and then compare a dump of its properties with expected output.
Diffstat (limited to 'tests/test-layout.c')
-rw-r--r--tests/test-layout.c487
1 files changed, 487 insertions, 0 deletions
diff --git a/tests/test-layout.c b/tests/test-layout.c
new file mode 100644
index 00000000..25b81147
--- /dev/null
+++ b/tests/test-layout.c
@@ -0,0 +1,487 @@
+/* Pango
+ * test-layout.c: Test Pango Layout
+ *
+ * Copyright (C) 2014 Red Hat, Inc
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <glib.h>
+#include <string.h>
+#include <locale.h>
+
+#include <pango/pangocairo.h>
+
+static PangoContext *context;
+
+static void
+print_attr (PangoAttribute *attr, GString *string)
+{
+ g_string_append_printf (string, "[%d %d] ", attr->start_index, attr->end_index);
+ switch (attr->klass->type)
+ {
+ case PANGO_ATTR_LANGUAGE:
+ g_string_append_printf (string,"language %s\n", pango_language_to_string (((PangoAttrLanguage *)attr)->value));
+ break;
+ case PANGO_ATTR_FAMILY:
+ g_string_append_printf (string,"family %s\n", ((PangoAttrString *)attr)->value);
+ break;
+ case PANGO_ATTR_STYLE:
+ g_string_append_printf (string,"style %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_WEIGHT:
+ g_string_append_printf (string,"weight %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_VARIANT:
+ g_string_append_printf (string,"variant %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_STRETCH:
+ g_string_append_printf (string,"stretch %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_SIZE:
+ g_string_append_printf (string,"size %d\n", ((PangoAttrSize *)attr)->size);
+ break;
+ case PANGO_ATTR_FONT_DESC:
+ g_string_append_printf (string,"font %s\n", pango_font_description_to_string (((PangoAttrFontDesc *)attr)->desc));
+ break;
+ case PANGO_ATTR_FOREGROUND:
+ g_string_append_printf (string,"foreground %s\n", pango_color_to_string (&((PangoAttrColor *)attr)->color));
+ break;
+ case PANGO_ATTR_BACKGROUND:
+ g_string_append_printf (string,"background %s\n", pango_color_to_string (&((PangoAttrColor *)attr)->color));
+ break;
+ case PANGO_ATTR_UNDERLINE:
+ g_string_append_printf (string,"underline %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_STRIKETHROUGH:
+ g_string_append_printf (string,"strikethrough %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_RISE:
+ g_string_append_printf (string,"rise %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_SHAPE:
+ g_string_append_printf (string,"shape\n");
+ break;
+ case PANGO_ATTR_SCALE:
+ g_string_append_printf (string,"scale %f\n", ((PangoAttrFloat *)attr)->value);
+ break;
+ case PANGO_ATTR_FALLBACK:
+ g_string_append_printf (string,"fallback %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_LETTER_SPACING:
+ g_string_append_printf (string,"letter-spacing %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_UNDERLINE_COLOR:
+ g_string_append_printf (string,"underline-color %s\n", pango_color_to_string (&((PangoAttrColor *)attr)->color));
+ break;
+ case PANGO_ATTR_STRIKETHROUGH_COLOR:
+ g_string_append_printf (string,"strikethrough-color %s\n", pango_color_to_string (&((PangoAttrColor *)attr)->color));
+ break;
+ case PANGO_ATTR_ABSOLUTE_SIZE:
+ g_string_append_printf (string,"absolute-size %d\n", ((PangoAttrSize *)attr)->size);
+ break;
+ case PANGO_ATTR_GRAVITY:
+ g_string_append_printf (string,"gravity %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ case PANGO_ATTR_GRAVITY_HINT:
+ g_string_append_printf (string,"gravity-hint %d\n", ((PangoAttrInt *)attr)->value);
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+}
+
+static void
+dump_attrs (PangoAttrList *attrs, GString *string)
+{
+ PangoAttrIterator *iter;
+
+ iter = pango_attr_list_get_iterator (attrs);
+ do {
+ gint start, end;
+ GSList *list, *l;
+
+ pango_attr_iterator_range (iter, &start, &end);
+ g_string_append_printf (string, "range %d %d\n", start, end);
+ list = pango_attr_iterator_get_attrs (iter);
+ for (l = list; l; l = l->next)
+ {
+ PangoAttribute *attr = l->data;
+ print_attr (attr, string);
+ }
+ g_slist_free_full (list, (GDestroyNotify)pango_attribute_destroy);
+ } while (pango_attr_iterator_next (iter));
+
+ pango_attr_iterator_destroy (iter);
+}
+
+static void
+dump_extra_attrs (GSList *attrs, GString *string)
+{
+ GSList *l;
+
+ for (l = attrs; l; l = l->next)
+ {
+ PangoAttribute *attr = l->data;
+
+ g_string_append (string, " ");
+ print_attr (attr, string);
+ }
+}
+
+static const gchar *
+enum_value_nick (GType type, gint value)
+{
+ GEnumClass *eclass;
+ GEnumValue *ev;
+
+ eclass = g_type_class_ref (type);
+ ev = g_enum_get_value (eclass, value);
+ g_type_class_unref (eclass);
+
+ if (ev)
+ return ev->value_nick;
+ else
+ return "?";
+}
+
+static const gchar *
+direction_name (PangoDirection dir)
+{
+ return enum_value_nick (PANGO_TYPE_DIRECTION, dir);
+}
+
+static const gchar *
+gravity_name (PangoGravity gravity)
+{
+ return enum_value_nick (PANGO_TYPE_GRAVITY, gravity);
+}
+
+static const gchar *
+script_name (PangoScript script)
+{
+ return enum_value_nick (PANGO_TYPE_SCRIPT, script);
+}
+
+static gchar *
+font_name (PangoFont *font)
+{
+ PangoFontDescription *desc;
+ gchar *name;
+
+ desc = pango_font_describe (font);
+ name = pango_font_description_to_string (desc);
+ pango_font_description_free (desc);
+
+ return name;
+}
+
+static void
+dump_lines (PangoLayout *layout, GString *string)
+{
+ PangoLayoutIter *iter;
+ const gchar *text;
+ gint index, index2;
+ gboolean has_more;
+ gchar *char_str;
+ gint i;
+ PangoLayoutLine *line;
+
+ text = pango_layout_get_text (layout);
+ iter = pango_layout_get_iter (layout);
+
+ has_more = TRUE;
+ index = pango_layout_iter_get_index (iter);
+ i = 0;
+ while (has_more)
+ {
+ line = pango_layout_iter_get_line (iter);
+ has_more = pango_layout_iter_next_line (iter);
+ i++;
+
+ if (has_more)
+ {
+ index2 = pango_layout_iter_get_index (iter);
+ char_str = g_strndup (text + index, index2 - index);
+ }
+ else
+ {
+ char_str = g_strdup (text + index);
+ }
+
+ g_string_append_printf (string, "i=%d, index=%d, paragraph-start=%d, dir=%s '%s'\n",
+ i, index, line->is_paragraph_start, direction_name (line->resolved_dir),
+ char_str);
+ g_free (char_str);
+
+ index = index2;
+ }
+ pango_layout_iter_free (iter);
+}
+
+static void
+dump_runs (PangoLayout *layout, GString *string)
+{
+ PangoLayoutIter *iter;
+ PangoLayoutRun *run;
+ PangoItem *item;
+ const gchar *text;
+ gint index, index2;
+ gboolean has_more;
+ gchar *char_str;
+ gint i;
+ gchar *font;
+
+ text = pango_layout_get_text (layout);
+ iter = pango_layout_get_iter (layout);
+
+ has_more = TRUE;
+ index = pango_layout_iter_get_index (iter);
+ i = 0;
+ while (has_more)
+ {
+ run = pango_layout_iter_get_run (iter);
+ has_more = pango_layout_iter_next_run (iter);
+ i++;
+
+ if (has_more)
+ {
+ index2 = pango_layout_iter_get_index (iter);
+ char_str = g_strndup (text + index, index2 - index);
+ }
+ else
+ {
+ char_str = g_strdup (text + index);
+ }
+
+ if (run)
+ {
+ item = ((PangoGlyphItem*)run)->item;
+ font = font_name (item->analysis.font);
+ g_string_append_printf (string, "i=%d, index=%d, chars=%d, level=%d, gravity=%s, flags=%d, font=%s, script=%s, language=%s, '%s'\n",
+ i, index, item->num_chars, item->analysis.level,
+ gravity_name (item->analysis.gravity),
+ item->analysis.flags,
+ font,
+ script_name (item->analysis.script),
+ pango_language_to_string (item->analysis.language),
+ char_str);
+ dump_extra_attrs (item->analysis.extra_attrs, string);
+ g_free (font);
+ }
+ else
+ {
+ g_string_append_printf (string, "i=%d, index=%d, no run, line end\n",
+ i, index);
+ }
+
+ g_free (char_str);
+ index = index2;
+ }
+ pango_layout_iter_free (iter);
+}
+
+static void
+parse_params (const gchar *str,
+ gint *width,
+ gint *ellipsize_at,
+ PangoEllipsizeMode *ellipsize,
+ PangoWrapMode *wrap)
+{
+ gchar **strings;
+ gchar **str2;
+ gint i;
+ GEnumClass *eclass;
+ GEnumValue *ev;
+
+ strings = g_strsplit (str, ",", -1);
+ for (i = 0; strings[i]; i++)
+ {
+ str2 = g_strsplit (strings[i], "=", -1);
+ if (strcmp (str2[0], "width") == 0)
+ *width = (gint) g_ascii_strtoll (str2[1], NULL, 10);
+ else if (strcmp (str2[0], "ellipsize-at") == 0)
+ *ellipsize_at = (gint) g_ascii_strtoll (str2[1], NULL, 10);
+ else if (strcmp (str2[0], "ellipsize") == 0)
+ {
+ eclass = g_type_class_ref (PANGO_TYPE_ELLIPSIZE_MODE);
+ ev = g_enum_get_value_by_name (eclass, str2[1]);
+ if (!ev)
+ ev = g_enum_get_value_by_nick (eclass, str2[1]);
+ if (ev)
+ *ellipsize = ev->value;
+ g_type_class_unref (eclass);
+ }
+ else if (strcmp (str2[0], "wrap") == 0)
+ {
+ eclass = g_type_class_ref (PANGO_TYPE_WRAP_MODE);
+ ev = g_enum_get_value_by_name (eclass, str2[1]);
+ if (!ev)
+ ev = g_enum_get_value_by_nick (eclass, str2[1]);
+ if (ev)
+ *wrap = ev->value;
+ g_type_class_unref (eclass);
+ }
+ g_strfreev (str2);
+ }
+ g_strfreev (strings);
+}
+
+static void
+test_file (const gchar *filename, GString *string)
+{
+ gchar *contents;
+ gchar *markup;
+ gsize length;
+ GError *error = NULL;
+ PangoLayout *layout;
+ gchar *p;
+ gint width = 0;
+ gint ellipsize_at = 0;
+ PangoEllipsizeMode ellipsize = PANGO_ELLIPSIZE_NONE;
+ PangoWrapMode wrap = PANGO_WRAP_WORD;
+
+ if (!g_file_get_contents (filename, &contents, &length, &error))
+ {
+ fprintf (stderr, "%s\n", error->message);
+ g_error_free (error);
+ return;
+ }
+
+ p = strchr (contents, '\n');
+ g_assert (p);
+ markup = p + 1;
+ *p = '\0';
+
+ parse_params (contents, &width, &ellipsize_at, &ellipsize, &wrap);
+
+ layout = pango_layout_new (context);
+ pango_layout_set_markup (layout, markup, length);
+ g_free (contents);
+
+ if (width != 0)
+ pango_layout_set_width (layout, width * PANGO_SCALE);
+ pango_layout_set_ellipsize (layout, ellipsize);
+ pango_layout_set_wrap (layout, wrap);
+
+ g_string_append (string, pango_layout_get_text (layout));
+ g_string_append (string, "\n---\n\n");
+ g_string_append_printf (string, "wrapped: %d\n", pango_layout_is_wrapped (layout));
+ g_string_append_printf (string, "ellipsized: %d\n", pango_layout_is_ellipsized (layout));
+ g_string_append_printf (string, "lines: %d\n", pango_layout_get_line_count (layout));
+ if (width != 0)
+ g_string_append_printf (string, "width: %d\n", pango_layout_get_width (layout));
+ g_string_append (string, "\n---\n\n");
+ dump_attrs (pango_layout_get_attributes (layout), string);
+ g_string_append (string, "\n---\n\n");
+ dump_lines (layout, string);
+ g_string_append (string, "\n---\n\n");
+ dump_runs (layout, string);
+
+ g_object_unref (layout);
+}
+
+static gchar *
+get_expected_filename (const gchar *filename)
+{
+ gchar *f, *p, *expected;
+
+ f = g_strdup (filename);
+ p = strstr (f, ".markup");
+ if (p)
+ *p = 0;
+ expected = g_strconcat (f, ".expected", NULL);
+
+ g_free (f);
+
+ return expected;
+}
+
+static void
+test_layout (gconstpointer d)
+{
+ const gchar *filename = d;
+ gchar *expected_file;
+ gchar *expected;
+ GError *error = NULL;
+ GString *string;
+
+ expected_file = get_expected_filename (filename);
+
+ string = g_string_sized_new (0);
+
+ test_file (filename, string);
+
+ g_file_get_contents (expected_file, &expected, NULL, &error);
+ g_assert_no_error (error);
+ g_assert_cmpstr (string->str, ==, expected);
+ g_free (expected);
+
+ g_string_free (string, TRUE);
+
+ g_free (expected_file);
+}
+
+int
+main (int argc, char *argv[])
+{
+ GDir *dir;
+ GError *error = NULL;
+ const gchar *name;
+ gchar *path;
+ PangoFontDescription *desc;
+
+ g_setenv ("LC_ALL", "C", TRUE);
+ setlocale (LC_ALL, "");
+
+ g_test_init (&argc, &argv, NULL);
+
+ context = pango_font_map_create_context (pango_cairo_font_map_get_default ());
+ desc = pango_font_description_from_string ("Cantarell 11");
+ pango_context_set_font_description (context, desc);
+ pango_font_description_free (desc);
+
+ /* allow to easily generate expected output for new test cases */
+ if (argc > 1)
+ {
+ GString *string;
+
+ string = g_string_sized_new (0);
+ test_file (argv[1], string);
+ g_print ("%s", string->str);
+
+ return 0;
+ }
+
+ path = g_test_build_filename (G_TEST_DIST, "layouts", NULL);
+ dir = g_dir_open (path, 0, &error);
+ g_free (path);
+ g_assert_no_error (error);
+ while ((name = g_dir_read_name (dir)) != NULL)
+ {
+ if (!strstr (name, "markup"))
+ continue;
+
+ path = g_strdup_printf ("/layout/%s", name);
+ g_test_add_data_func_full (path, g_test_build_filename (G_TEST_DIST, "layouts", name, NULL),
+ test_layout, g_free);
+ g_free (path);
+ }
+ g_dir_close (dir);
+
+ return g_test_run ();
+}