[utils] Add pango-list commandline tool

My main interest is performance of font listing API.  Figured I can
just make a tool out of it.  Output format to be improved.

1 files changed, 80 insertions, 0 deletions

diff --git a/utils/pango-list.c b/utils/pango-list.c
new file mode 100644
index 00000000..280e2a94
--- /dev/null
+++ b/utils/pango-list.c
@@ -0,0 +1,80 @@
+/* pango-list.c: List all fonts
+ *
+ * Copyright (C) 2018 Google
+ *
+ * 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.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#include "config.h"
+#include <pango/pangocairo.h>
+#include <glib/gstdio.h>
+
+int
+main (int    argc,
+      char **argv)
+{
+  PangoFontMap *fontmap;
+  PangoFontFamily **families;
+  int n_families;
+  int i, j, k;
+
+#if !GLIB_CHECK_VERSION (2, 35, 3)
+  g_type_init();
+#endif
+  g_set_prgname ("pango-list");
+
+  /* Use PangoCairo to get default fontmap so it works on every platform. */
+  fontmap = pango_cairo_font_map_get_default ();
+
+  pango_font_map_list_families (fontmap, &families, &n_families);
+  for (i = 0; i < n_families; i++)
+    {
+      PangoFontFace **faces;
+      int n_faces;
+
+      const char *family_name = pango_font_family_get_name (families[i]);
+
+      pango_font_family_list_faces (families[i], &faces, &n_faces);
+      for (j = 0; j < n_faces; j++)
+	{
+	  int *sizes;
+	  int n_sizes;
+
+	  const char *face_name = pango_font_face_get_face_name (faces[j]);
+	  gboolean is_synth = pango_font_face_is_synthesized (faces[j]);
+	  const char *synth_str = is_synth ? "*" : "";
+	  PangoFontDescription *desc = NULL;/*pango_font_face_describe (faces[j]);*/
+
+	  pango_font_face_list_sizes (faces[j], &sizes, &n_sizes);
+	  if (!n_sizes)
+	    g_print ("%s%s, %s\n", synth_str, family_name, face_name);
+	  else
+	    for (k = 0; k < n_sizes; k++)
+	      g_print ("%s%s, %s, %g\n", synth_str, family_name, face_name, pango_units_to_double (sizes[k]));
+
+	  g_free (sizes);
+	  pango_font_description_free (desc);
+	}
+
+      g_free (faces);
+    }
+  g_free (families);
+  g_object_unref (fontmap);
+
+  return 0;
+}