Load default prefs

1 files changed, 29 insertions, 0 deletions

diff --git a/python/__init__.py b/python/__init__.py
index aaa29a9..55758a0 100644
--- a/python/__init__.py
+++ b/python/__init__.py
@@ -15,9 +15,13 @@
 # Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 # Boston, MA 02111-1307, USA.
 
+import gtk
+
 from hulahop._hulahop import shutdown
 from hulahop import _hulahop
 
+_XO_DPI = 200.0
+
 def startup(profile_path, components_dirs=[]):
     _hulahop.set_profile_path(profile_path)
 
@@ -25,3 +29,28 @@ def startup(profile_path, components_dirs=[]):
         _hulahop.add_components_path(path)
         
     _hulahop.startup()
+
+    from xpcom import components
+
+    cls = components.classes["@mozilla.org/preferences-service;1"]
+    prefService = cls.getService(components.interfaces.nsIPrefService)
+    branch = prefService.getBranch('')
+    branch.setIntPref('layout.css.dpi', _get_layout_dpi())
+
+def _get_layout_dpi():
+    _screen_dpi = gtk.settings_get_default().get_property('gtk-xft-dpi')
+    screen_width = gtk.gdk.screen_width()
+
+    if _screen_dpi != _XO_DPI or screen_width != 1200:
+        return -1
+
+    # Layout:
+    # 1024x768 -> (96 * 6) / 1024 * 201 = 113 dpi
+    # 800x600  -> (96 * 6) /  800 * 201 = 144 dpi
+    #
+    # Fonts:
+    # 7  pt ->  7 / 12 * 201 = 117 dpi
+    # 8  pt ->  8 / 12 * 201 = 134 dpi
+    # 9  pt ->  9 / 12 * 201 = 150 dpi
+
+    return 134