(* $Id$ *) open GMain let file_dialog ~title ~callback ?filename () = let sel = GWindow.file_selection ~title ~modal:true ?filename () in sel#cancel_button#connect#clicked ~callback:sel#destroy; sel#ok_button#connect#clicked ~callback: begin fun () -> let name = sel#get_filename in sel#destroy (); callback name end; sel#show () class editor ?packing ?show () = object (self) val text = GEdit.text ~editable:true ?packing ?show () val mutable filename = None method text = text method load_file name = try let ic = open_in name in filename <- Some name; text#freeze (); text#delete_text ~start:0 ~stop:text#length; let buf = String.create 1024 and len = ref 0 in while len := input ic ~buf ~pos:0 ~len:1024; !len > 0 do if !len = 1024 then text#insert buf else text#insert (String.sub buf ~pos:0 ~len:!len) done; text#set_point 0; text#thaw (); close_in ic with _ -> () method open_file () = file_dialog ~title:"Open" ~callback:self#load_file () method save_dialog () = file_dialog ~title:"Save" ?filename ~callback:(fun file -> self#output ~file) () method save_file () = match filename with Some file -> self#output ~file | None -> self#save_dialog () method output ~file = try if Sys.file_exists file then Sys.rename ~src:file ~dst:(file ^ "~"); let oc = open_out file in output_string oc (text#get_chars ~start:0 ~stop:text#length); close_out oc; filename <- Some file with _ -> prerr_endline "Save failed" end let window = GWindow.window ~width:500 ~height:300 ~title:"editor" () let vbox = GPack.vbox ~packing:window#add () let menubar = GMenu.menu_bar ~packing:vbox#pack () let factory = new GMenu.factory menubar let accel_group = factory#accel_group let file_menu = factory#add_submenu "File" let edit_menu = factory#add_submenu "Edit" let hbox = GPack.hbox ~packing:vbox#add () let editor = new editor ~packing:hbox#add () let scrollbar = GRange.scrollbar `VERTICAL ~packing:hbox#pack () open GdkKeysyms let _ = window#connect#destroy ~callback:Main.quit; let factory = new GMenu.factory file_menu ~accel_group in factory#add_item "Open..." ~key:_O ~callback:editor#open_file; factory#add_item "Save" ~key:_S ~callback:editor#save_file; factory#add_item "Save as..." ~callback:editor#save_dialog; factory#add_separator (); factory#add_item "Quit" ~key:_Q ~callback:window#destroy; let factory = new GMenu.factory edit_menu ~accel_group in factory#add_item "Copy" ~key:_C ~callback:editor#text#copy_clipboard; factory#add_item "Cut" ~key:_X ~callback:editor#text#cut_clipboard; factory#add_item "Paste" ~key:_V ~callback:editor#text#paste_clipboard; factory#add_separator (); factory#add_check_item "Word wrap" ~active:false ~callback:editor#text#set_word_wrap; factory#add_check_item "Read only" ~active:false ~callback:(fun b -> editor#text#set_editable (not b)); window#add_accel_group accel_group; editor#text#event#connect#button_press ~callback:(fun ev -> let button = GdkEvent.Button.button ev in if button = 3 then begin file_menu#popup ~button ~time:(GdkEvent.Button.time ev); true end else false); editor#text#set_vadjustment scrollbar#adjustment; window#show (); Main.main ()