Utils and rename

src/Core.Terminal/ControlBuilderExtensions.cs

@@ -82,9 +82,16 @@ public static ControlBuilder ResetScrollMargin(this ControlBuilder @this) =>
     public static ControlBuilder ReverseLineFeed(this ControlBuilder @this) =>
         @this.Print(ESC).Print(['M']); // this is reverse index (M), not reverse line feed (H), but this is supported much better and does the same thing according to docs
 
-    public static AutoSaveRestoreCursorState AutoSaveRestoreCursorState(this ControlBuilder @this) =>
+    public static AutoSaveRestoreCursorState SaveRestoreCursor(this ControlBuilder @this) =>
         new(@this);
 
+    public static AutoSaveRestoreCursorState SaveRestoreCursor(this ControlBuilder @this, int y, int x)
+    {
+        var saver = @this.SaveRestoreCursor();
+        @this.MoveCursorTo(y, x);
+        return saver;
+    }
+
     // note that this will cause the cursor to move to home position. can't save/restore cursor pos because it is tied
     // to cursor state, and restoring state will kill the new constrain mode.
     public static ControlBuilder SetCursorConstrainMode(this ControlBuilder @this, CursorConstrainMode mode) => @this

src/Core/ArrayExtensions.cs

@@ -2,6 +2,13 @@ namespace OkTools.Core;
 
 public static class ArrayExtensions
 {
+    public static ArraySegment<T> WithOffset<T>(this T[] @this, int offset) =>
+        new(@this, offset, @this.Length - offset);
+    public static ArraySegment<T> WithLength<T>(this T[] @this, int length) =>
+        new(@this, 0, length);
+    public static ArraySegment<T> Slice<T>(this T[] @this, int offset, int length) =>
+        new(@this, offset, length);
+
     public static void ShiftLeft<T>(this T[] @this, int count)
     {
         Array.Copy(@this, count, @this, 0, @this.Length - count);

src/Showkeys.Cli/DriveCommand.cs

@@ -154,7 +154,7 @@ public async Task<CliExitCode> RunAsync(bool save)
                 case { Char: 'l', Modifiers: ConsoleModifiers.Control }:
                     OutControl(cb =>
                     {
-                        using var _ = cb.AutoSaveRestoreCursorState();
+                        using var _ = cb.SaveRestoreCursor();
                         for (var line = _scrollTop; line <= _scrollBottom; ++line)
                         {
                             cb.MoveCursorTo(line, 0);