frontend: main_view: GUI compontent implementing the base widget

* will reference and include its child widgets from independent source files

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>

frontend/src/main_view.rs

@@ -0,0 +1,33 @@
+use orbtk::prelude::*;
+
+use crate::policycheck_view::PolicyCheckView;
+    //data::PolicyList,
+    //policylist_view::PolicyListView,
+    //policy_view::PolicyDataView
+
+widget!(MainView {
+    policylist_count: usize,
+    policylist_view: u32,
+    policy_view: u32
+});
+
+impl Template for MainView {
+    fn template(self, id: Entity, ctx: &mut BuildContext) -> Self {
+	let policycheck_view = PolicyCheckView::new()
+	    //.policy_view(id)
+	    //.policycheck_view(id)
+	    //.policy_list_count(id)
+	    .build(ctx);
+	/* let policy_view = PolicyList::new()
+	    .back_entity(policycheck_view.0)
+	    .policy_view(id)
+	    .visibility("collapsed")
+	    .build(ctx);
+	 */
+
+	self.name("MainView")
+	    .policylist_count(0)
+	    //.policy_list(policy_list.0)
+	    .child(policycheck_view)
+    }
+}