[glom/glom-1-30] utils_ui: Properly parse the pango font name.



commit 8f98ba8ba1a1f0febdca0e6d3c0a5b6a94503f65
Author: Murray Cumming <murrayc murrayc com>
Date:   Mon May 16 20:46:41 2016 +0200

    utils_ui: Properly parse the pango font name.

 glom/utils_ui.cc |   12 ++++++++++--
 glom/utils_ui.h  |    6 +++++-
 2 files changed, 15 insertions(+), 3 deletions(-)
---
diff --git a/glom/utils_ui.cc b/glom/utils_ui.cc
index 822c86e..4658cc4 100644
--- a/glom/utils_ui.cc
+++ b/glom/utils_ui.cc
@@ -617,9 +617,17 @@ void UiUtils::container_remove_all(Gtk::Container& container)
   }
 }
 
-void UiUtils::load_font_into_css_provider(Gtk::Widget& widget, const Glib::ustring& font)
+void UiUtils::load_font_into_css_provider(Gtk::Widget& widget, const Glib::ustring& pango_font_name)
 {
-  const auto css = "* { font-family: " + font + "; }";
+  const Pango::FontDescription font_desc(pango_font_name);
+  const auto font_family = font_desc.get_family();
+  const auto font_size = font_desc.get_size();
+  const auto css =
+    "* {\n" +
+    (font_family.empty() ? "" : "    font-family: " + font_desc.get_family() + ";\n") +
+    (font_size == 0 ? "" : "    font-size: " + std::to_string(font_size / PANGO_SCALE) + "pt;\n") +
+    "}";
+
   load_into_css_provider(widget, css);
 }
 
diff --git a/glom/utils_ui.h b/glom/utils_ui.h
index cd514b4..1b383c2 100644
--- a/glom/utils_ui.h
+++ b/glom/utils_ui.h
@@ -108,7 +108,11 @@ void treeview_delete_all_columns(Gtk::TreeView* treeview);
 
 void container_remove_all(Gtk::Container& container);
 
-void load_font_into_css_provider(Gtk::Widget& widget, const Glib::ustring& font);
+/**
+ * @param pango_font_name A font description in the syntax accepted by the Pango::FontDescription 
constructor.
+ */
+void load_font_into_css_provider(Gtk::Widget& widget, const Glib::ustring& pango_font_name);
+
 void load_color_into_css_provider(Gtk::Widget& widget, const Glib::ustring& color);
 void load_background_color_into_css_provider(Gtk::Widget& widget, const Glib::ustring& color);
 


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