widget: main_view: add obtk ron based localization support

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

advotracker/src/widgets/main_view.rs

@@ -12,20 +12,23 @@ use crate::{
     widgets::policycheck_view::PolicyCheckView,
 };
 
+type List = Vec<String>;
+
+// [START] views
+
 widget!(MainView {
     // policy_list: PolicyList,
     // policy_data_list: PolicyDataList,
     // policylist_view: u32,
     // policydata_view: u32,
-    //policycheck_view: u32
     policycheck_view: PolicyCheck
 });
 
 impl Template for MainView {
     fn template(self, _id: Entity, ctx: &mut BuildContext<'_>) -> Self {
         let policycheck_view = PolicyCheckView::new()
-            //.policy_number_count(0)
+        //.policy_number_count(0)
-            //.policylist_view(id)
+        //.policylist_view(id)
             .build(ctx);
 
         // let policylist_view = PolicyListView::new()
@@ -49,6 +52,83 @@ impl Template for MainView {
             // .policylist_view(policylist_view.0)
             // .child(policydata_view)
             // .child(policylist_view)
-            .child(policycheck_view)
+            .child(
+                TabWidget::new()
+                    .tab("Policynumber check", policycheck_view)
+                    .tab("Localization", LocalizationView::new().build(ctx))
+                    .build(ctx),
+            )
+            //.child(policycheck_view)
     }
 }
+
+widget!(LocalizationView<LocalizationState> { languages: List, selected_index: i32 });
+
+impl Template for LocalizationView {
+    fn template(self, id: Entity, ctx: &mut BuildContext<'_>) -> Self {
+        let languages = vec!["English".to_string(), "German".to_string()];
+        let count = languages.len();
+
+        self.languages(languages).selected_index(1).child(
+            Stack::new()
+                .width(120)
+                .margin(16)
+                .spacing(8)
+                .child(TextBlock::new().text("Hello").build(ctx))
+                .child(TextBlock::new().text("User").build(ctx))
+                .child(TextBlock::new().text("Localization dialog").build(ctx))
+                .child(
+                    ComboBox::new()
+                        .count(count)
+                        .items_builder(move |bc, index| {
+                            let text = bc.get_widget(id)
+                                .get::<Vec<String>>("languages")[index]
+                                .clone();
+                            TextBlock::new().v_align("center").text(text).build(bc)
+                        })
+                        .on_changed("selected_index", move |states, _| {
+                            states.get_mut::<LocalizationState>(id).change_language();
+                        })
+                        .selected_index(id)
+                        .build(ctx),
+                )
+                .build(ctx),
+        )
+    }
+}
+
+// [END] views
+
+// [START] states
+
+#[derive(AsAny, Debug, Default)]
+struct LocalizationState {
+    change_language: bool,
+}
+
+impl LocalizationState {
+    fn change_language(&mut self) {
+        self.change_language = true;
+    }
+}
+
+impl State for LocalizationState {
+    fn update(&mut self, _registry: &mut Registry, ctx: &mut Context<'_>) {
+        if !self.change_language {
+            return;
+        }
+
+        let index = *LocalizationView::selected_index_ref(&ctx.widget()) as usize;
+        let selected_language = LocalizationView::languages_ref(&ctx.widget())[index].clone();
+
+        match selected_language.as_str() {
+            "English" => ctx.set_language("en_US"),
+            "German" => ctx.set_language("de_DE"),
+            _ => {}
+        }
+
+        self.change_language = false;
+    }
+}
+
+// [END] states