added cursor rendering

helix-core/src/lib.rs

@@ -3,7 +3,7 @@
 pub mod commands;
 mod graphemes;
 mod selection;
-mod state;
+pub mod state;
 mod transaction;
 
 pub use ropey::{Rope, RopeSlice};

helix-core/src/state.rs

@@ -3,8 +3,8 @@
 
 /// A state represents the current editor state of a single buffer.
 pub struct State {
-    pub(crate) doc: Buffer,
-    pub(crate) selection: Selection,
+    pub doc: Buffer,
+    pub selection: Selection,
 }
 
 #[derive(Copy, Clone, PartialEq, Eq)]

helix-term/src/editor.rs

@@ -14,7 +14,7 @@
 use anyhow::Error;
 
 use crate::{keymap, Args};
-use helix_core::{Buffer, State};
+use helix_core::{state::coords_at_pos, Buffer, State};
 
 pub struct BufferComponent<'a> {
     x: u16,
@@ -37,8 +37,7 @@ pub fn render(&self) {
                 SetForegroundColor(Color::Reset),
                 cursor::MoveTo(self.x + 2, self.y + line_count),
                 Print(line)
-            )
-            .unwrap();
+            );
             line_count += 1;
         }
     }
@@ -117,6 +116,16 @@ pub async fn print_events(&mut self) {
                             // TODO: handle count other than 1
                             command(state, 1);
                             self.render();
+                            // render the cursor
+                            let pos = self.state.as_ref().unwrap().selection.primary().head;
+                            let coords = coords_at_pos(
+                                &self.state.as_ref().unwrap().doc.contents.slice(..),
+                                pos,
+                            );
+                            execute!(
+                                stdout(),
+                                cursor::MoveTo((coords.1 + 2) as u16, coords.0 as u16)
+                            );
                         }
                     }
                 }

helix-term/src/keymap.rs

@@ -1,6 +1,11 @@
-use crossterm::event::{KeyCode, KeyEvent as Key, KeyModifiers as Modifiers};
+use crossterm::{
+    event::{KeyCode, KeyEvent as Key, KeyModifiers as Modifiers},
+    execute,
+    style::Print,
+};
 use helix_core::commands::{self, Command};
 use std::collections::HashMap;
+use std::io::{stdout, Write};
 
 // Kakoune-inspired:
 // mode = {