Make IConsoleDriver.Rows and Cols read-only - WIP

- Removed setters from IConsoleDriver.Rows and Cols
- Made ConsoleDriver._cols and _rows protected so FakeDriver can access them
- Updated FakeDriver to set _cols and _rows directly instead of using properties
- Updated ConsoleDriver properties to be read-only
- Updated ConsoleDriverFacade to have read-only Cols/Rows
- Screen now references _cols and _rows directly

Still need to fix test files that try to set Rows/Cols directly (14 errors remaining)

Co-authored-by: tig <585482+tig@users.noreply.github.com>

Terminal.Gui/Drivers/ConsoleDriver.cs

@@ -58,7 +58,7 @@ public abstract class ConsoleDriver : IConsoleDriver
 
     // QUESTION: When non-full screen apps are supported, will this represent the app size, or will that be in Application?
     /// <summary>Gets the location and size of the terminal screen.</summary>
-    public Rectangle Screen => new (0, 0, Cols, Rows);
+    public Rectangle Screen => new (0, 0, _cols, _rows);
 
     private Region? _clip;
 
@@ -94,15 +94,7 @@ public abstract class ConsoleDriver : IConsoleDriver
     public int Col { get; private set; }
 
     /// <summary>The number of columns visible in the terminal.</summary>
-    public virtual int Cols
-    {
-        get => _cols;
-        set
-        {
-            _cols = value;
-            ClearContents ();
-        }
-    }
+    public virtual int Cols => _cols;
 
     /// <summary>
     ///     The contents of the application output. The driver outputs this buffer to the terminal when
@@ -158,15 +150,7 @@ public abstract class ConsoleDriver : IConsoleDriver
     public int Row { get; private set; }
 
     /// <summary>The number of rows visible in the terminal.</summary>
-    public virtual int Rows
-    {
-        get => _rows;
-        set
-        {
-            _rows = value;
-            ClearContents ();
-        }
-    }
+    public virtual int Rows => _rows;
 
     /// <summary>The topmost row in the terminal.</summary>
     public virtual int Top { get; set; } = 0;
@@ -580,8 +564,8 @@ public abstract class ConsoleDriver : IConsoleDriver
         set => Application.Force16Colors = value || !SupportsTrueColor;
     }
 
-    private int _cols;
-    private int _rows;
+    protected int _cols;
+    protected int _rows;
 
     /// <summary>
     ///     The <see cref="Attribute"/> that will be used for the next <see cref="AddRune(Rune)"/> or <see cref="AddStr"/>

Terminal.Gui/Drivers/ConsoleDriverFacade.cs

@@ -113,11 +113,7 @@ internal class ConsoleDriverFacade<T> : IConsoleDriver, IConsoleDriverFacade
     public int Col => _outputBuffer.Col;
 
     /// <summary>The number of columns visible in the terminal.</summary>
-    public int Cols
-    {
-        get => _outputBuffer.Cols;
-        set => _outputBuffer.Cols = value;
-    }
+    public int Cols => _outputBuffer.Cols;
 
     /// <summary>
     ///     The contents of the application output. The driver outputs this buffer to the terminal.
@@ -143,11 +139,7 @@ internal class ConsoleDriverFacade<T> : IConsoleDriver, IConsoleDriverFacade
     public int Row => _outputBuffer.Row;
 
     /// <summary>The number of rows visible in the terminal.</summary>
-    public int Rows
-    {
-        get => _outputBuffer.Rows;
-        set => _outputBuffer.Rows = value;
-    }
+    public int Rows => _outputBuffer.Rows;
 
     /// <summary>The topmost row in the terminal.</summary>
     public int Top

Terminal.Gui/Drivers/FakeDriver/FakeDriver.cs

@@ -51,8 +51,8 @@ public class FakeDriver : ConsoleDriver
         // FakeDriver implies UnitTests
         RunningUnitTests = true;
 
-        base.Cols = FakeConsole.WindowWidth = FakeConsole.BufferWidth = FakeConsole.WIDTH;
-        base.Rows = FakeConsole.WindowHeight = FakeConsole.BufferHeight = FakeConsole.HEIGHT;
+        _cols = FakeConsole.WindowWidth = FakeConsole.BufferWidth = FakeConsole.WIDTH;
+        _rows = FakeConsole.WindowHeight = FakeConsole.BufferHeight = FakeConsole.HEIGHT;
 
         if (FakeBehaviors.UseFakeClipboard)
         {
@@ -95,8 +95,8 @@ public class FakeDriver : ConsoleDriver
     {
         FakeConsole.MockKeyPresses.Clear ();
 
-        Cols = FakeConsole.WindowWidth = FakeConsole.BufferWidth = FakeConsole.WIDTH;
-        Rows = FakeConsole.WindowHeight = FakeConsole.BufferHeight = FakeConsole.HEIGHT;
+        _cols = FakeConsole.WindowWidth = FakeConsole.BufferWidth = FakeConsole.WIDTH;
+        _rows = FakeConsole.WindowHeight = FakeConsole.BufferHeight = FakeConsole.HEIGHT;
         FakeConsole.Clear ();
         ResizeScreen ();
         CurrentAttribute = new Attribute (Color.White, Color.Black);
@@ -387,8 +387,9 @@ public class FakeDriver : ConsoleDriver
     public void SetBufferSize (int width, int height)
     {
         FakeConsole.SetBufferSize (width, height);
-        Cols = width;
-        Rows = height;
+        _cols = width;
+        _rows = height;
+        ClearContents ();
         SetWindowSize (width, height);
         ProcessResize ();
     }
@@ -400,8 +401,6 @@ public class FakeDriver : ConsoleDriver
         if (width != Cols || height != Rows)
         {
             SetBufferSize (width, height);
-            Cols = width;
-            Rows = height;
         }
 
         ProcessResize ();

Terminal.Gui/Drivers/IConsoleDriver.cs

@@ -29,7 +29,7 @@ public interface IConsoleDriver
     int Col { get; }
 
     /// <summary>The number of columns visible in the terminal.</summary>
-    int Cols { get; set; }
+    int Cols { get; }
 
     // BUGBUG: This should not be publicly settable.
     /// <summary>
@@ -48,7 +48,7 @@ public interface IConsoleDriver
     int Row { get; }
 
     /// <summary>The number of rows visible in the terminal.</summary>
-    int Rows { get; set; }
+    int Rows { get; }
 
     /// <summary>The topmost row in the terminal.</summary>
     int Top { get; set; }