Feat: Add Copy/Paste Page Content to Edit menu

src/teletext/ui.py

@@ -12,7 +12,7 @@ from PyQt6.QtGui import QAction, QKeyEvent
 from PyQt6.QtCore import Qt
 
 from .io import load_t42, save_t42
-from .renderer import TeletextCanvas
+from .renderer import TeletextCanvas, create_blank_packet
 import sys
 import os
 from .models import TeletextService, Page, Packet
@@ -25,6 +25,7 @@ class MainWindow(QMainWindow):
         
         self.service = TeletextService()
         self.current_page: Page = None
+        self.clipboard = [] # List of (row, data_bytes)
         
         # UI Components
         self.central_widget = QWidget()
@@ -158,6 +159,17 @@ class MainWindow(QMainWindow):
         exit_action.triggered.connect(self.close)
         file_menu.addAction(exit_action)
         
+        # Edit Menu
+        edit_menu = menu_bar.addMenu("Edit")
+        
+        copy_action = QAction("Copy Page Content", self)
+        copy_action.triggered.connect(self.copy_page_content)
+        edit_menu.addAction(copy_action)
+        
+        paste_action = QAction("Paste Page Content", self)
+        paste_action.triggered.connect(self.paste_page_content)
+        edit_menu.addAction(paste_action)
+        
         view_menu = menu_bar.addMenu("View")
         
         lang_menu = view_menu.addMenu("Language")
@@ -252,6 +264,59 @@ class MainWindow(QMainWindow):
             QMessageBox.critical(self, "Error", f"Failed to save file: {e}")
             self.status_label.setText("Error saving file")
 
+    def copy_page_content(self):
+        if not self.current_page:
+            return
+            
+        self.clipboard = []
+        # Copy rows 1 to 24 (or up to 25 if exists)
+        # Skip row 0 (Header)
+        for packet in self.current_page.packets:
+            if 1 <= packet.row <= 24:
+                # Store row number and copy of data
+                self.clipboard.append((packet.row, bytearray(packet.data)))
+        
+        self.status_label.setText(f"Copied {len(self.clipboard)} rows to clipboard.")
+
+    def paste_page_content(self):
+        if not self.current_page:
+            return
+            
+        if not self.clipboard:
+            self.status_label.setText("Clipboard is empty.")
+            return
+            
+        # Paste content
+        # Strategy: For each copied row, update existing packet or create new one.
+        
+        # Create a map of existing packets by row for quick lookup
+        existing_packets = {p.row: p for p in self.current_page.packets}
+        
+        modified_count = 0
+        
+        for row, data in self.clipboard:
+            if row in existing_packets:
+                # Update existing
+                packet = existing_packets[row]
+                packet.data = bytearray(data) # Clone again to be safe
+                # Note: Packet header (original_data) is now stale if we just update .data
+                # but save functionality reconstructs header from .magazine and .row
+                # so it should be fine.
+                modified_count += 1
+            else:
+                # Create new packet
+                new_packet = create_blank_packet(self.current_page.magazine, row)
+                new_packet.data = bytearray(data)
+                self.current_page.packets.append(new_packet)
+                # Update lookup map just in case (though we won't hit it again usually)
+                existing_packets[row] = new_packet
+                modified_count += 1
+                
+        # Force redraw
+        self.canvas.redraw()
+        self.canvas.update()
+        self.status_label.setText(f"Pasted {modified_count} rows.")
+
     def populate_list(self):
         self.page_list.clear()