Borrow cached rendered text instead of cloning it

core/src/primitive/text.rs

@@ -185,7 +185,7 @@ impl TextData {
                         subpixel,
                         coords: coords_hash,
                     };
-                    let entry = self.glyph_entry(
+                    let Some(entry) = self.glyph_entry(
                         GlyphRaster {
                             key,
                             font: font_ref,
@@ -195,8 +195,9 @@ impl TextData {
                             glyph_id: glyph.id,
                         },
                         textures,
-                    );
-                    let Some(entry) = entry else { continue };
+                    ) else {
+                        continue;
+                    };
                     placed.push(PlacedGlyph {
                         entry,
                         offset: Vec2::new(
@@ -265,9 +266,8 @@ fn glyph_size_key(font_size: f32) -> u32 {
     (font_size * GLYPH_SIZE_STEPS_PER_PIXEL).round() as u32
 }
 
-#[derive(Clone)]
 pub struct RenderedText {
-    pub glyphs: std::sync::Arc<Vec<PlacedGlyph>>,
+    pub glyphs: Vec<PlacedGlyph>,
     pub size: Vec2,
     pub color: UiColor,
 }
@@ -283,7 +283,7 @@ impl TextData {
         buffer.shape(self, attrs, width);
         let glyphs = self.place(buffer, textures);
         RenderedText {
-            glyphs: std::sync::Arc::new(glyphs),
+            glyphs,
             size: buffer.size(),
             color: attrs.color,
         }

core/src/render/atlas.rs

@@ -1,5 +1,5 @@
 use crate::{
-    GlyphPrimitive, PatchRect, TextureHandle, Textures,
+    PatchRect, TextureHandle, Textures,
     util::{HashMap, Vec2},
 };
 use image::RgbaImage;
@@ -40,12 +40,10 @@ pub struct GlyphEntry {
 }
 
 impl GlyphEntry {
+    const IS_COLORED: u32 = 1;
+
     pub(crate) fn flags(&self) -> u32 {
-        if self.is_colored {
-            GlyphPrimitive::IS_COLORED
-        } else {
-            0
-        }
+        if self.is_colored { Self::IS_COLORED } else { 0 }
     }
 }
 

core/src/render/primitive.rs

@@ -243,10 +243,6 @@ pub struct GlyphPrimitive {
     pub flags: u32,
 }
 
-impl GlyphPrimitive {
-    pub const IS_COLORED: u32 = 1;
-}
-
 pub struct PrimitiveVec<T> {
     vec: Vec<T>,
     free: Vec<usize>,

src/widget/text/mod.rs

@@ -52,25 +52,19 @@ impl TextView {
             .align(self.align)
     }
 
-    fn render(&mut self, ctx: &mut SizeCtx) -> RenderedText {
+    fn render(&mut self, ctx: &mut SizeCtx) -> &RenderedText {
         let width = if self.attrs.wrap {
             Some(ctx.px_size().x)
         } else {
             None
         };
-        if width == self.width
-            && let Some(tex) = &self.tex
-            && !self.attrs.changed
-            && !self.buf.changed
-        {
-            return tex.clone();
+        if width != self.width || self.tex.is_none() || self.attrs.changed || self.buf.changed {
+            self.width = width;
+            self.tex = Some(ctx.draw_text(&mut self.buf, &self.attrs, width));
+            self.attrs.changed = false;
+            self.buf.changed = false;
         }
-        self.width = width;
-        let tex = ctx.draw_text(&mut self.buf, &self.attrs, width);
-        self.tex = Some(tex.clone());
-        self.attrs.changed = false;
-        self.buf.changed = false;
-        tex
+        self.tex.as_ref().unwrap()
     }
     pub fn tex(&self) -> Option<&RenderedText> {
         self.tex.as_ref()
@@ -94,16 +88,19 @@ impl TextView {
         }
     }
     pub fn draw(&mut self, painter: &mut Painter) -> UiRegion {
-        let tex = self.render(&mut painter.size_ctx());
-        let region = tex.size.align(self.align);
-        if self.is_empty()
-            && let Some(hint) = &self.hint
-        {
-            painter.widget(hint);
-        } else {
-            let within = region.within(&painter.region());
-            painter.glyphs(&tex, within);
+        let align = self.align;
+        if self.is_empty() && self.hint.is_some() {
+            let region = self.render(&mut painter.size_ctx()).size.align(align);
+            if let Some(hint) = &self.hint {
+                painter.widget(hint);
+            }
+            return region;
         }
+
+        let tex = self.render(&mut painter.size_ctx());
+        let region = tex.size.align(align);
+        let within = region.within(&painter.region());
+        painter.glyphs(tex, within);
         region
     }