Add GtkFileChooserSettings for the dialog's geometry

Add GtkFileChooserSettings for the dialog's geometry
2009-01-14  Federico Mena Quintero  <federico@novell.com>

	    Remember the file chooser's geometry across invocations.

	    * gtk/gtkfilechoosersettings.h (struct _GtkFileChooserSettings):
	    New fields geometry_x, geometry_y, geometry_width, geometry_height.
	    (_gtk_file_chooser_settings_get_geometry): New prototype.
	    (_gtk_file_chooser_settings_set_geometry): New prototype.

	    * gtk/gtkfilechoosersettings.c (GEOMETRY_X_KEY, GEOMETRY_Y_KEY,
	    GEOMETRY_WIDTH_KEY, GEOMETRY_HEIGTH_KEY): New key names.
	    (ensure_settings_read): Read the geometry keys.
	    (_gtk_file_chooser_settings_save): Save the geometry keys.
	    (_gtk_file_chooser_settings_init): Initialize the geometry keys to
	    "don't have this value".
	    (_gtk_file_chooser_settings_get_geometry): New public function.
	    (_gtk_file_chooser_settings_set_geometry): New public function.

Signed-off-by: Federico Mena Quintero <federico@novell.com>
svn path=/trunk/; revision=22116