Batch render tooltips, completing section 5.30

src/gui/menus.rs

@@ -12,7 +12,7 @@ pub enum ItemMenuResult {
 
 pub fn menu_box<T: ToString>(draw_batch: &mut DrawBatch, x: i32, y: i32, width: i32, title: T) {
     draw_batch.draw_box(
-        Rect::with_size(x, y - 2, 31, width),
+        Rect::with_size(x, y - 2, 51, width),
         ColorPair::new(colors::WHITE, colors::BLACK),
     );
     draw_batch.print_color(

src/gui/tooltips.rs

@@ -1,6 +1,7 @@
-use ::rltk::{Point, Rltk};
+use ::rltk::prelude::*;
 use ::specs::prelude::*;
 
+use super::get_item_display_name;
 use crate::components::{Attributes, Duration, Hidden, Name, Pools, StatusEffect};
 use crate::{camera, colors, Map};
 
@@ -32,14 +33,10 @@ impl Tooltip {
         self.lines.len() as i32 + 2
     }
 
-    fn render(&self, ctx: &mut Rltk, x: i32, y: i32) {
-        ctx.draw_box(
-            x,
-            y,
-            self.width() - 1,
-            self.height() - 1,
-            colors::WHITE,
-            colors::BOX_GRAY,
+    fn render(&self, draw_batch: &mut DrawBatch, x: i32, y: i32) {
+        draw_batch.draw_box(
+            Rect::with_size(x, y, self.width() - 1, self.height() - 1),
+            ColorPair::new(colors::WHITE, colors::BOX_GRAY),
         );
 
         for (i, s) in self.lines.iter().enumerate() {
@@ -48,13 +45,17 @@ impl Tooltip {
             } else {
                 colors::LIGHT_GRAY
             };
-            ctx.print_color(x + 1, y + i as i32 + 1, col, colors::BLACK, &s);
+            draw_batch.print_color(
+                Point::new(x + 1, y + i as i32 + 1),
+                &s,
+                ColorPair::new(col, colors::BLACK),
+            );
         }
     }
 }
 
 pub fn draw_tooltips(ecs: &World, ctx: &mut Rltk) {
-    use ::rltk::{to_cp437, Algorithm2D};
+    let mut draw_batch = DrawBatch::new();
 
     let (min_x, _max_x, min_y, _max_y) = camera::get_screen_bounds(ecs, ctx);
     let map = ecs.fetch::<Map>();
@@ -94,7 +95,7 @@ pub fn draw_tooltips(ecs: &World, ctx: &mut Rltk) {
         }
 
         let mut tip = Tooltip::new();
-        tip.add(super::get_item_display_name(ecs, entity));
+        tip.add(get_item_display_name(ecs, entity));
 
         // Comment on attributes
         if let Some(attr) = attributes.get(entity) {
@@ -164,7 +165,11 @@ pub fn draw_tooltips(ecs: &World, ctx: &mut Rltk) {
         arrow = to_cp437('←');
         arrow_x = mouse_pos.0 + 1;
     }
-    ctx.set(arrow_x, arrow_y, colors::WHITE, colors::BOX_GRAY, arrow);
+    draw_batch.set(
+        Point::new(arrow_x, arrow_y),
+        ColorPair::new(colors::WHITE, colors::BOX_GRAY),
+        arrow,
+    );
 
     let mut total_height = 0;
     for tt in tip_boxes.iter() {
@@ -182,7 +187,9 @@ pub fn draw_tooltips(ecs: &World, ctx: &mut Rltk) {
         } else {
             mouse_pos.0 + (1 + tt.width())
         };
-        tt.render(ctx, x, y);
+        tt.render(&mut draw_batch, x, y);
         y += tt.height();
     }
+
+    draw_batch.submit(7000).expect("Failed to render tooltip");
 }