ed.ex :: simple pick list menus
- Posted by K_D_R Jan 11, 2013
- 976 views
I guess you would call this a "Quick and Dirty" pick-list menu system. I have been using it with my EDS/ed.ex routines:
-- insert in the get_escape(boolean help) routines "first-bold" list of hotkey clauses: first_bold("Db ") --<------------ first_bold("help ") first_bold("clone ") first_bold("open ") -- command = key_gets("Dhcqswnedfrlm", {}) & ' ' -- add the upper-case "D" to sequence of hot-keys -- -- add elsif clause to list of menu commands: elsif command[1] = 'D' then DbMenu() -- -- insert following menu code. All of the menu items are names of procedures with -- routine-id's. For example: procedure DbSelect() -- Select/Open/Create DB: -- select a db, if select fails, try to open the db, if open fails try to create db: DbBanner("Select/Open/Create Database") current_dir_db = cur_dir_db() lm = select_db_lm() -- DB_LOCK_METHOD if db_select(sprintf("%s", {current_dir_db}), lm) != DB_OK then if db_open(sprintf("%s", {current_dir_db}), lm) != DB_OK then if db_create(sprintf("%s", {current_dir_db}), lm) != DB_OK then DbBanner(" ") any_key("Could not Select/open/create db!") end if end if end if current_db = db_current() -- the update_history routine is the same routine that tracks -- file_names, search, and command "history" sequences: open_db_history = update_history(open_db_history, current_db) DbMenu() end procedure integer db_select_edx = routine_id("DbSelect") procedure DbCloseAll() for i = length(open_db_history) to 1 by -1 do db_select(open_db_history[i]) db_close() end for open_db_history = {} DbMenu() end procedure integer DbCloseAll_edx = routine_id("DbCloseAll") constant DB_MENU = {"Quit", "RecordsMenu", "TablesMenu", "DbCloseAll", "DbClose", "DbCompress", "DbConnect", "DbDump", "DbSelect"}, TABLES_MENU = {"Quit", "DbMenu", "RecordsMenu", "TableSize", "TablesList", "TableRename", "TableClear", "TableDelete", "TableSelect" }, sequence MENU = {} sequence selection = " " procedure DbMenu() MENU &= DB_MENU set_mode(DEFAULT_DB) DbBanner("DataBase") display_menu() end procedure integer dbx_menu = routine_id("DbMenu") procedure TablesMenu() MENU = TABLES_MENU set_mode(TABLES) DbBanner("TABLES") display_menu() end procedure integer tables_menu = routine_id("TablesMenu") procedure display_menu() selection = " " while equal(selection, " ") do text_color(TOP_LINE_TEXT_COLOR) -- use arrow keys to scroll through the list of menu items selection = trim(key_gets("", MENU)) if find(selection, MENU) then call_proc(routine_id(sprintf("%s", {selection})), {}) end if end while end procedure -------------------------------------------------------------------------------- -- This is the top-line color code schemes for different editing "modes" -- used as "switches" to change color schemes: integer DEFAULT_DB = 1, -- default edx.ex and top level EDS database functions TABLES = 2, -- EDS tables top line menu color scheme RECORDS = 3, -- EDS records top line menu color scheme DB_TEXT_COLOR = YELLOW, TABLES_COLOR = BROWN, RECORDS_COLOR = RED, TOP_LINE_TEXT_COLOR, TOP_LINE_BACK_COLOR, TOP_LINE_DIM_COLOR, BACKGROUND_COLOR procedure set_mode(integer mode) -- edx: colors changed to differentiate edx.ex from ed.ex if mode = DEFAULT_DB then -- default color mode also used for database menu operations. TOP_LINE_BACK_COLOR = BLUE TOP_LINE_TEXT_COLOR = YELLOW TOP_LINE_DIM_COLOR = BRIGHT_CYAN BACKGROUND_COLOR = WHITE TABLES_COLOR = BROWN elsif mode = TABLES then -- used for the EDS "Table" operations menu. TOP_LINE_BACK_COLOR = BROWN TOP_LINE_TEXT_COLOR = BLUE TOP_LINE_DIM_COLOR = BLACK BACKGROUND_COLOR = WHITE TABLES_COLOR = GREEN elsif mode = RECORDS then -- used for the EDS "Records" operations menu. TOP_LINE_BACK_COLOR = GREEN TOP_LINE_TEXT_COLOR = RED TOP_LINE_DIM_COLOR = BLACK BACKGROUND_COLOR = WHITE else -- edx.ex default, same as "DEFAULT_DB". TOP_LINE_BACK_COLOR = BLUE TOP_LINE_TEXT_COLOR = YELLOW TOP_LINE_DIM_COLOR = BRIGHT_CYAN BACKGROUND_COLOR = WHITE TABLES_COLOR = BROWN end if end procedure set_mode(DEFAULT_DB) -- edx editor/default, db_menu/operations default -- This is the DbBanner code: procedure DbBanner(sequence operation) -- { current db : current table} {opendb1, opendb2, etc} -- { } { } -- no db open sequence all_other_open_db = {} set_top_line(" ") text_color(TOP_LINE_DIM_COLOR) puts(SCREEN,"{") text_color(DB_TEXT_COLOR) current_db = filebase(db_current()) printf(SCREEN, "%s",{current_db}) current_table = db_current_table() if length(current_table)!= 0 then text_color(TOP_LINE_DIM_COLOR) puts(SCREEN, ":") text_color(TABLES_COLOR) printf(SCREEN, "%s", {current_table}) end if text_color(TOP_LINE_DIM_COLOR) puts(SCREEN, "} {") current_db = db_current() if length(current_db) != 0 then open_db_history = remove_item(current_db, open_db_history) end if if length(open_db_history) != 0 then for i = 1 to length(open_db_history) do if i != length(open_db_history) and length(filebase(open_db_history[i])) !=0 then text_color(TOP_LINE_TEXT_COLOR) printf(SCREEN, "%s", {filebase(open_db_history[i])}) text_color(TOP_LINE_DIM_COLOR) puts(SCREEN,":") elsif i = length(open_db_history) then text_color(TOP_LINE_TEXT_COLOR) printf(SCREEN, "%s", {filebase(open_db_history[i])}) end if end for end if open_db_history = update_history(open_db_history, current_db) text_color(TOP_LINE_DIM_COLOR) puts(SCREEN, "} ") if length(operation)>1 then text_color(TOP_LINE_DIM_COLOR) printf(SCREEN,"%s", {operation}) text_color(TOP_LINE_TEXT_COLOR) puts(SCREEN,": ") end if end procedure
Comments and suggestions for improvements, etc., will be appreciated.
