[gnumeric] GUI: Ignore non-scalable fonts.

[Morten Welinder <mortenw src gnome org>]

commit 625e6fefa02e318ee7e03e8a8988b3dcb4e52807
Author: Morten Welinder <terra gnome org>
Date:   Thu Mar 14 21:53:58 2013 -0400

    GUI: Ignore non-scalable fonts.

 ChangeLog     |    5 +++++
 src/wbc-gtk.c |   30 ++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 3bd65e8..d5a8913 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-03-14  Morten Welinder  <terra gnome org>
+
+       * src/wbc-gtk.c (gnm_font_action_create_tool_item): Add filter to
+       ignore non-scalable fonts.
+
 2013-03-11  Morten Welinder  <terra gnome org>
 
        * src/wbc-gtk.c (wbc_gtk_init_font_name): New implementation.
diff --git a/src/wbc-gtk.c b/src/wbc-gtk.c
index 5c4244c..d9c45f3 100644
--- a/src/wbc-gtk.c
+++ b/src/wbc-gtk.c
@@ -3409,6 +3409,32 @@ cb_font_button_screen_changed (GtkWidget *widget)
 #endif
 }
 
+/* Filter to ignore non-scalable fonts. */
+static gboolean
+cb_font_filter (G_GNUC_UNUSED const PangoFontFamily *family,
+               const PangoFontFace *face_,
+               gpointer user)
+{
+       PangoFontFace *face = (PangoFontFace*)face_;
+       int n_sizes;
+       int *sizes = NULL;
+       static int debug = -1;
+
+       pango_font_face_list_sizes (face, &sizes, &n_sizes);
+       g_free (sizes);
+
+       if (debug == -1)
+               debug = gnm_debug_flag ("fonts");
+
+       if (n_sizes > 0 && debug) {
+               g_printerr ("Ignoring face %s\n",
+                           pango_font_description_to_string
+                           (pango_font_face_describe (face)));
+       }
+
+       return n_sizes == 0;
+}
+
 static GtkWidget *
 gnm_font_action_create_tool_item (GtkAction *action)
 {
@@ -3418,6 +3444,10 @@ gnm_font_action_create_tool_item (GtkAction *action)
                 "dialog-type", GO_TYPE_FONT_SEL_DIALOG,
 //              "dialog-type", GTK_TYPE_FONT_CHOOSER_DIALOG,
                 NULL);
+       gtk_font_chooser_set_filter_func (GTK_FONT_CHOOSER (but),
+                                         cb_font_filter,
+                                         NULL,
+                                         NULL);
        gtk_widget_show_all (but);
        gtk_button_set_relief
                (GTK_BUTTON (but),