[gnumeric] add gsettings and hard code fallbacks to get_font

[Andreas J. Guelzow <guelzow src gnome org>]

commit 20fe68d49c7c18749efe84e39e34cd347129b0f2
Author: Andreas J Guelzow <aguelzow pyrshep ca>
Date:   Fri Aug 9 13:16:04 2013 -0600

    add gsettings and hard code fallbacks to get_font
    
    2013-08-09  Andreas J. Guelzow <aguelzow pyrshep ca>
    
        * src/sheet-object-widget.c (get_font): add a fall-backs

 ChangeLog                 |    4 +++
 src/sheet-object-widget.c |   65 ++++++++++++++++++++++++++++++++++----------
 2 files changed, 54 insertions(+), 15 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 7bfe2d0..d64b65a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2013-08-09  Andreas J. Guelzow <aguelzow pyrshep ca>
 
+       * src/sheet-object-widget.c (get_font): add a fall-backs
+
+2013-08-09  Andreas J. Guelzow <aguelzow pyrshep ca>
+
        * src/sheet-object-widget.c (sheet_widget_button_draw_cairo): Use
        draw_cairo_text.
        (draw_cairo_text): add h-vcenter argument and change all callers
diff --git a/src/sheet-object-widget.c b/src/sheet-object-widget.c
index c6904dc..ecfbf8b 100644
--- a/src/sheet-object-widget.c
+++ b/src/sheet-object-widget.c
@@ -583,27 +583,62 @@ get_font (void)
 {
        PangoFontDescription *desc;
 
-       if (1|| NULL != gdk_screen_get_default ()) {
-               GtkStyleContext *style = gtk_style_context_new ();
-               GtkWidgetPath *path = gtk_widget_path_new ();
-               
-               gtk_style_context_set_path (style, path);
-               gtk_widget_path_unref (path);
+       GtkStyleContext *style = gtk_style_context_new ();
+       GtkWidgetPath *path = gtk_widget_path_new ();
+       PangoFontMask mask;
+       int size = 0;
 
-               gtk_style_context_get (style, GTK_STATE_FLAG_NORMAL,
-                                      GTK_STYLE_PROPERTY_FONT, &desc, NULL);
-               g_object_unref (style);
-       } else {
-               /* The desription obtained by GtkStyleContext is not valid in ssconvert!! */
-               desc = pango_font_description_from_string ("sans 10");
-       }
+       gtk_style_context_set_path (style, path);
+       gtk_widget_path_unref (path);
+       
+       gtk_style_context_get (style, GTK_STATE_FLAG_NORMAL,
+                              GTK_STYLE_PROPERTY_FONT, &desc, NULL);
+       g_object_unref (style);
+
+       mask = pango_font_description_get_set_fields (desc);
+       if ((mask & PANGO_FONT_MASK_SIZE) != 0)
+               size = pango_font_description_get_size (desc);
 
        if (gnm_debug_flag ("so-font")) {
                char *s = pango_font_description_to_string (desc);
-               g_printerr ("font=%s\n", s);
+               g_printerr ("from GtkStyleContext font=\"%s\", family set = %i,"
+                           " size set = %i, size = %i\n",
+                           s, ((mask & PANGO_FONT_MASK_FAMILY) != 0),
+                           ((mask & PANGO_FONT_MASK_SIZE) != 0), size);
                g_free (s);
        }
 
+       if ((mask & PANGO_FONT_MASK_FAMILY) == 0 || size == 0) {
+               /* Trying gsettings */
+               GSettings *set = g_settings_new ("org.gnome.desktop.interface");
+               char *font_name = g_settings_get_string (set, "font-name");
+               if (font_name != NULL) {
+                       pango_font_description_free (desc);
+                       desc = pango_font_description_from_string (font_name);
+                       g_free (font_name);
+                       mask = pango_font_description_get_set_fields (desc);
+                       if ((mask & PANGO_FONT_MASK_SIZE) != 0)
+                               size = pango_font_description_get_size (desc);
+                       else
+                               size = 0;
+                       if (gnm_debug_flag ("so-font")) {
+                               char *s = pango_font_description_to_string (desc);
+                               g_printerr ("from GSettings: font=\"%s\", family set = %i,"
+                                           " size set = %i, size = %i\n",
+                                           s, ((mask & PANGO_FONT_MASK_FAMILY) != 0),
+                                           ((mask & PANGO_FONT_MASK_SIZE) != 0), size);
+                               g_free (s);
+                       }
+               }
+       }       
+
+       if ((mask & PANGO_FONT_MASK_FAMILY) == 0 || size == 0) {
+               pango_font_description_free (desc);
+               desc = pango_font_description_from_string ("sans 10");
+               if (gnm_debug_flag ("so-font"))
+                       g_printerr ("Using \"sans 10\" instead.\n");
+       }
+
        return desc;
 }