-void gis_viewer_begin(GisViewer *self)
-{
- GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
- if (!klass->begin)
- g_warning("GisViewer: begin - Unimplemented");
- klass->begin(self);
-}
-
-void gis_viewer_end(GisViewer *self)
-{
- GisViewerClass *klass = GIS_VIEWER_GET_CLASS(self);
- if (!klass->end)
- g_warning("GisViewer: end - Unimplemented");
- klass->end(self);
-}
-