added outlined text widget

voxygen/src/ui/mod.rs

@@ -19,6 +19,7 @@ pub use widgets::{
     image_slider::ImageSlider,
     ingame::{Ingame, Ingameable},
     item_tooltip::{ItemTooltip, ItemTooltipManager, ItemTooltipable},
+    outlined_text::OutlinedText,
     radio_list::RadioList,
     slot,
     toggle_button::ToggleButton,

voxygen/src/ui/widgets/mod.rs

@@ -3,6 +3,7 @@ pub mod image_frame;
 pub mod image_slider;
 pub mod ingame;
 pub mod item_tooltip;
+pub mod outlined_text;
 pub mod radio_list;
 pub mod slot;
 pub mod toggle_button;

voxygen/src/ui/widgets/outlined_text.rs

@@ -0,0 +1,117 @@
+use conrod_core::{
+    builder_methods, text,
+    widget::{self, Text},
+    widget_ids, Color, FontSize, Positionable, Sizeable, Widget, WidgetCommon,
+};
+
+#[derive(Clone, WidgetCommon)]
+pub struct OutlinedText<'a> {
+    #[conrod(common_builder)]
+    common: widget::CommonBuilder,
+
+    text: &'a str,
+    text_style: widget::text::Style,
+    outline_color: Option<Color>,
+    outline_width: f64,
+}
+
+widget_ids! {
+    struct Ids{
+        base,
+        outline1,
+        outline2,
+        outline3,
+        outline4,
+    }
+}
+
+pub struct State {
+    ids: Ids,
+}
+
+impl<'a> OutlinedText<'a> {
+    builder_methods! {
+        pub color {text_style.color = Some(Color)}
+        pub outline_color {outline_color = Some(Color)}
+
+        pub font_size {text_style.font_size = Some(FontSize)}
+        pub outline_width {outline_width = f64}
+    }
+
+    pub fn new(text: &'a str) -> Self {
+        Self {
+            common: widget::CommonBuilder::default(),
+            text,
+
+            text_style: widget::text::Style::default(),
+            outline_color: None,
+            outline_width: 0.0,
+        }
+    }
+
+    pub fn font_id(mut self, font_id: text::font::Id) -> Self {
+        self.text_style.font_id = Some(Some(font_id));
+        self
+    }
+}
+
+impl<'a> Widget for OutlinedText<'a> {
+    type Event = ();
+    type State = State;
+    type Style = ();
+
+    fn init_state(&self, id_gen: widget::id::Generator) -> Self::State {
+        State {
+            ids: Ids::new(id_gen),
+        }
+    }
+
+    #[allow(clippy::unused_unit)] // TODO: Pending review in #587
+    fn style(&self) -> Self::Style { () }
+
+    fn update(self, args: widget::UpdateArgs<Self>) -> Self::Event {
+        let widget::UpdateArgs {
+            id,
+            state,
+            ui,
+            rect,
+            ..
+        } = args;
+
+        let mut outline_style = self.text_style.clone();
+        outline_style.color = self.outline_color;
+
+        let shift = self.outline_width;
+        Text::new(self.text)
+            .with_style(self.text_style)
+            .xy(rect.xy())
+            .wh(rect.dim())
+            .parent(id)
+            .depth(-1.0)
+            .set(state.ids.base, ui);
+
+        Text::new(self.text)
+            .with_style(outline_style)
+            .x_y_relative_to(state.ids.base, shift, shift)
+            .wh_of(state.ids.base)
+            .set(state.ids.outline1, ui);
+
+        Text::new(self.text)
+            .with_style(outline_style)
+            .x_y_relative_to(state.ids.base, -shift, shift)
+            .wh_of(state.ids.base)
+            .set(state.ids.outline2, ui);
+
+        Text::new(self.text)
+            .with_style(outline_style)
+            .x_y_relative_to(state.ids.base, shift, -shift)
+            .wh_of(state.ids.base)
+            .set(state.ids.outline3, ui);
+
+        Text::new(self.text)
+            .with_style(outline_style)
+            .x_y_relative_to(state.ids.base, -shift, -shift)
+            .wh_of(state.ids.base)
+            .set(state.ids.outline4, ui);
+    }
+}