Draft `Editor` API and `TextEditor` widget

3 files changed, 46 insertions, 5 deletions

diff --git a/wgpu/src/layer.rs b/wgpu/src/layer.rs
index 7a5a0f7c..10b3332d 100644
--- a/wgpu/src/layer.rs
+++ b/wgpu/src/layer.rs
@@ -120,12 +120,25 @@ impl<'a> Layer<'a> {
             } => {
                 let layer = &mut layers[current_layer];
 
-                layer.text.push(Text::Managed {
+                layer.text.push(Text::Paragraph {
                     paragraph: paragraph.clone(),
                     position: *position + translation,
                     color: *color,
                 });
             }
+            Primitive::Editor {
+                editor,
+                position,
+                color,
+            } => {
+                let layer = &mut layers[current_layer];
+
+                layer.text.push(Text::Editor {
+                    editor: editor.clone(),
+                    position: *position + translation,
+                    color: *color,
+                });
+            }
             Primitive::Text {
                 content,
                 bounds,
diff --git a/wgpu/src/layer/text.rs b/wgpu/src/layer/text.rs
index b61615d6..d46b39da 100644
--- a/wgpu/src/layer/text.rs
+++ b/wgpu/src/layer/text.rs
@@ -1,16 +1,22 @@
 use crate::core::alignment;
 use crate::core::text;
 use crate::core::{Color, Font, Pixels, Point, Rectangle};
+use crate::graphics::text::editor;
 use crate::graphics::text::paragraph;
 
 /// A paragraph of text.
 #[derive(Debug, Clone)]
 pub enum Text<'a> {
-    Managed {
+    Paragraph {
         paragraph: paragraph::Weak,
         position: Point,
         color: Color,
     },
+    Editor {
+        editor: editor::Weak,
+        position: Point,
+        color: Color,
+    },
     Cached(Cached<'a>),
 }
 
diff --git a/wgpu/src/text.rs b/wgpu/src/text.rs
index 5c9f4d7e..397c38dd 100644
--- a/wgpu/src/text.rs
+++ b/wgpu/src/text.rs
@@ -2,7 +2,7 @@ use crate::core::alignment;
 use crate::core::{Rectangle, Size};
 use crate::graphics::color;
 use crate::graphics::text::cache::{self, Cache};
-use crate::graphics::text::{font_system, Paragraph};
+use crate::graphics::text::{font_system, Editor, Paragraph};
 use crate::layer::Text;
 
 use std::borrow::Cow;
@@ -74,15 +74,19 @@ impl Pipeline {
 
         enum Allocation {
             Paragraph(Paragraph),
+            Editor(Editor),
             Cache(cache::KeyHash),
         }
 
         let allocations: Vec<_> = sections
             .iter()
             .map(|section| match section {
-                Text::Managed { paragraph, .. } => {
+                Text::Paragraph { paragraph, .. } => {
                     paragraph.upgrade().map(Allocation::Paragraph)
                 }
+                Text::Editor { editor, .. } => {
+                    editor.upgrade().map(Allocation::Editor)
+                }
                 Text::Cached(text) => {
                     let (key, _) = cache.allocate(
                         font_system,
@@ -117,7 +121,7 @@ impl Pipeline {
                     vertical_alignment,
                     color,
                 ) = match section {
-                    Text::Managed {
+                    Text::Paragraph {
                         position, color, ..
                     } => {
                         use crate::core::text::Paragraph as _;
@@ -135,6 +139,24 @@ impl Pipeline {
                             *color,
                         )
                     }
+                    Text::Editor {
+                        position, color, ..
+                    } => {
+                        use crate::core::text::Editor as _;
+
+                        let Some(Allocation::Editor(editor)) = allocation
+                        else {
+                            return None;
+                        };
+
+                        (
+                            editor.buffer(),
+                            Rectangle::new(*position, editor.min_bounds()),
+                            alignment::Horizontal::Left,
+                            alignment::Vertical::Top,
+                            *color,
+                        )
+                    }
                     Text::Cached(text) => {
                         let Some(Allocation::Cache(key)) = allocation else {
                             return None;