+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+ g_object_class_install_property (g_object_class,
+ PROP_LEFT,
+ g_param_spec_double ("left",
+ "Left coordinate",
+ "The left coordinate",
+ 0,
+ G_MAXDOUBLE,
+ 0,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+ g_object_class_install_property (g_object_class,
+ PROP_TOP,
+ g_param_spec_double ("top",
+ "Top coordinate",
+ "The top coordinate",
+ 0,
+ G_MAXDOUBLE,
+ 0,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+ g_object_class_install_property (g_object_class,
+ PROP_ZOOM,
+ g_param_spec_double ("zoom",
+ "Zoom",
+ "Zoom",
+ 0,
+ G_MAXDOUBLE,
+ 0,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));