frontend: policycheck: component to check the validity of a given policy code

* policycheck_view: user GUI to interact with (orbtk Widget)
* policycheck_state: rust code with helper methods

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

frontend/src/policycheck_view.rs

@@ -0,0 +1,159 @@
+use orbtk::prelude::*;
+
+use crate::{
+    //data::PolicyList,
+    keys::*,
+    policycheck_state::{Action, PolicyCheckState},
+};
+
+type ListIndex = Option<usize>;
+
+widget!(
+    /// Starter page that offers the dialog to enter an identifier of a policy.
+    /// This identifier is checked agains a map of valid policy codes.
+    PolicyCheckView<PolicyCheckState> {
+	//is_valid: bool,
+	title: String,
+	policy_check_text_box: String
+    }
+);
+
+impl Template for PolicyCheckView {
+    fn template(self, id: Entity, ctx: &mut BuildContext) -> Self {
+	let policy_code_text_box = TextBox::new()
+	    .id(ID_POLICY_CHECK_TEXT_BOX)
+	    .attach(Grid::row(4))
+	    .v_align("center")
+	    .margin((4.0, 0.0, 0.0, 0.0))
+	    .lost_focus_on_activation(false)
+	    .on_activate(move |ctx, entity| {
+		ctx.get_mut::<PolicyCheckState>(id)
+		    .action(Action::ParseEntry(entity));
+	    })
+	    .on_changed(move |ctx, entity| {
+		ctx.get_mut::<PolicyCheckState>(id)
+		    .action(Action::InputTextChanged(entity));
+	    })
+	    .build(ctx);
+
+	// Check policy identifier page
+	self.name("Policy check")
+	    .child(
+		Grid::new()
+		    .id(ID_POLICY_CHECK_WIDGET)
+		    .v_align("start")
+		    .background("#fafafa")
+		    .columns(
+			Columns::new()
+			    .add(150.0)
+			    .add("*")
+			    .add(150.0)
+			    .build(),
+		    )
+		    .rows(
+			Rows::new()
+			    .add(52.0)
+			    .add(1.0)
+			    .add("*")
+			    .add(1.0)
+			    .add("*")
+			    .build(),
+		    )
+		    // Top Bar
+		    .child(
+			Container::new()
+			    .class(CLASS_TOP_BAR)
+			    .attach(Grid::row(0))
+			    .attach(Grid::column(0))
+			    .attach(Grid::column_span(3))
+			    .child(
+				Grid::new()
+				    .margin((4.0, 24.0, 24.0, 4.0))
+				    .child(
+					TextBlock::new()
+					    .class(CLASS_HEADER)
+					    .v_align("center")
+					    .h_align("center")
+					//.text("Validation number policyholder"))
+					    .text("Validierung Versicherungsnummer")
+					    .build(ctx),
+				    )
+				    .build(ctx),
+			    )
+			    .build(ctx),
+		    )
+		    .child(
+			Container::new()
+			    .class("separator")
+			    .attach(Grid::row(1))
+			    .attach(Grid::column_span(3))
+			    .build(ctx),
+		    )
+		    .child(
+			Stack::new()
+			    .spacing(8.0)
+			    .orientation("vertical")
+			    .h_align("center")
+			    .child(policy_code_text_box)
+			    .child(
+				TextBlock::new()
+				    .class("text_box")
+				    .element("text-block")
+				    .id("result")
+				    .min_width(80.0)
+				    .max_width(180.0)
+				//.text("Result:")
+				    .text("Ergebnis:")
+				    .build(ctx),
+			    )
+			    .build(ctx),
+		    )
+		    .child(
+			Container::new()
+			    .class("separator")
+			    .attach(Grid::row(3))
+			    .attach(Grid::column_span(3))
+			    .build(ctx),
+		    )
+		    // Bottom bar
+		    .child(
+			Container::new()
+			    .class(CLASS_BOTTOM_BAR)
+			    .attach(Grid::row(4))
+			    .attach(Grid::column(0))
+			    .attach(Grid::column_span(3))
+			    .child(
+				Grid::new()
+				    .element("logo_customer")
+				    .margin((9.0, 16.0, 16.0, 9.0))
+				    .attach(Grid::column(0))
+				    .attach(Grid::row(1))
+				    .v_align("end")
+				    .child(
+					ImageWidget::new()
+					    .image("../resources/images/hiedemann_logo.png")
+					    .build(ctx),
+				    )
+				    .build(ctx),
+			    )
+			    .child(
+				Grid::new()
+				    .element("logo_vendor")
+				    .margin((9.0, 16.0, 16.0, 9.0))
+				    .attach(Grid::column(2))
+				    .attach(Grid::row(1))
+				    .v_align("end")
+				    .child(
+					ImageWidget::new()
+					    .image("../resources/images/networkx_logo.png")
+					    .build(ctx),
+				    )
+				    .build(ctx),
+			    )
+			    .build(ctx),
+		    )
+			    .build(ctx),
+		    )
+
+    }
+}