Continue C++ rewrite.

display.h

@@ -0,0 +1,42 @@
+#ifndef DISPLAY_HPP
+#define DISPLAY_HPP
+
+#include <cstddef>
+
+// Forward declarations
+struct editor_t;
+
+namespace ke {
+    class abuf;  // Forward declaration of ke::abuf
+
+/**
+ * Display class for screen rendering and refresh operations.
+ */
+class Display {
+public:
+    Display() = default;
+    ~Display() = default;
+    
+    // Deleted copy constructor and assignment
+    Display(const Display&) = delete;
+    Display& operator=(const Display&) = delete;
+    
+    // Main display operations
+    static void refresh(editor_t* editor);
+    static void clear(ke::abuf* ab);
+    
+    // Drawing operations
+    static void draw_rows(editor_t* editor, ke::abuf* ab);
+    static void draw_status_bar(editor_t* editor, ke::abuf* ab);
+    static void draw_message_line(editor_t* editor, ke::abuf* ab);
+    
+    // Scrolling
+    static void scroll(editor_t* editor);
+    
+private:
+    static char status_mode_char(int mode);
+};
+
+} // namespace ke
+
+#endif // DISPLAY_HPP