add tts locale to hello example

Cargo.lock

@@ -1035,10 +1035,12 @@ version = "0.1.0"
 dependencies = [
  "gam",
  "graphics-server",
+ "locales",
  "log",
  "log-server",
  "num-derive",
  "num-traits",
+ "tts-frontend",
  "xous",
  "xous-ipc 0.9.7",
  "xous-names",

apps/hello/Cargo.toml

@@ -13,3 +13,9 @@ log-server = { path = "../../services/log-server" }
 xous-names = { path = "../../services/xous-names" }
 gam = {path = "../../services/gam" }
 graphics-server = {path = "../../services/graphics-server" }
+locales = {path = "../../locales"}
+tts-frontend = {path="../../services/tts"}
+
+[features]
+tts = []
+default = []

apps/hello/locales/i18n.json

@@ -0,0 +1,8 @@
+{
+    "helloworld.hello": {
+        "en": "Hello World!",
+        "ja": "Hello World!",
+        "zh": "大家好!",
+        "en-tts": "Hello World!"
+    }
+}

apps/hello/src/main.rs

@@ -5,6 +5,9 @@ use core::fmt::Write;
 use graphics_server::api::GlyphStyle;
 use graphics_server::{DrawStyle, Gid, PixelColor, Point, Rectangle, TextBounds, TextView};
 use num_traits::*;
+use locales::t;
+#[cfg(feature = "tts")]
+use tts_frontend::*;
 
 /// Basic 'Hello World!' application that draws a simple
 /// TextView to the screen.
@@ -26,6 +29,8 @@ struct Hello {
     gam: gam::Gam,
     _gam_token: [u32; 4],
     screensize: Point,
+    #[cfg(feature = "tts")]
+    tts: TtsFrontend,
 }
 
 impl Hello {
@@ -57,6 +62,8 @@ impl Hello {
             _gam_token: gam_token,
             content,
             screensize,
+            #[cfg(feature = "tts")]
+            tts: TtsFrontend::new(xns).unwrap(),
         }
     }
 
@@ -98,7 +105,9 @@ impl Hello {
         text_view.clear_area = true;
         text_view.rounded_border = Some(3);
         text_view.style = GlyphStyle::Regular;
-        write!(text_view.text, "{}", "Hello world!").expect("Could not write to text view");
+        write!(text_view.text, "{}", t!("helloworld.hello", xous::LANG)).expect("Could not write to text view");
+        #[cfg(feature="tts")]
+        self.tts.tts_simple(t!("helloworld.hello", xous::LANG)).unwrap();
 
         self.gam
             .post_textview(&mut text_view)