rexx-address-book/app/appui.cls

233 lines
7.7 KiB
OpenEdge ABL

::requires 'ooSQLite.cls'
::requires "rxunixsys" LIBRARY
::requires 'ncurses.cls'
::requires 'app/utils.rex'
::class AddressBookUI public
::method init
expose win mainMenu
return
::method initialize
expose win mainMenu
win = self~DrawMainPanel(0, .true) /* default colour, draw border box */
self~setupMainMenu(win)
return
::METHOD DrawMainPanel
use arg clrset, with_box
win = .window~new() /* The first invocation must be with no arguments */
win~curs_set(0) /* Hide the cursor by default */
win~keypad(1) /* Enable function keys and arrow keys */
win~raw
win~noecho
win~clear
win~cbreak
self~SetPanelColor(win, clrset)
if with_box = .true then DO
win~box(0, 0) /* Draw box with default ACS characters */
win~refresh
END
return win
::METHOD DrawSubPanel
use arg height, width, starty, startx, clrset, title, with_box
new_win = .window~new(height, width, starty, startx)
new_win~curs_set(0)
/* Set the panel color */
self~SetPanelColor(new_win, clrset)
/* Display title */
new_win~attron(new_win~A_BOLD)
new_win~mvaddstr(starty-(starty-2), (width - title~length) % 2, title)
new_win~attroff(new_win~A_BOLD)
new_win~refresh
if with_box = .true then DO
new_win~box(0,0)
new_win~refresh
END
return new_win
::METHOD SetPanelColor
use arg panel, clrset
panel~start_color()
SELECT
/* white text on blue background */
when clrset = 1 then panel~init_pair(2, panel~COLOR_WHITE, panel~COLOR_BLUE)
/* white text on grey background */
when clrset = 2 then panel~init_pair(3, panel~COLOR_WHITE, panel~COLOR_GREEN)
/* yellow text on red background */
when clrset = 3 then panel~init_pair(4, panel~COLOR_YELLOW, panel~COLOR_RED)
/* black text on white background */
when clrset = 4 then panel~init_pair(5, panel~COLOR_BLACK, panel~COLOR_WHITE)
/* black text on green background */
when clrset = 5 then panel~init_pair(6, panel~COLOR_BLACK, panel~COLOR_GREEN)
/* black text on cyan background */
when clrset = 6 then panel~init_pair(7, panel~COLOR_BLACK, panel~COLOR_CYAN)
/* Default to white text on black background */
OTHERWISE DO
clrset=0
panel~init_pair(1, panel~COLOR_WHITE, panel~COLOR_BLACK)
END
END
panel~bkgd(panel~color_pair(clrset+1))
panel~refresh
RETURN
::method setupMainMenu
expose mainMenu menuwin menu_items menu_keys selected
use arg win
max_y = win~lines
max_x = win~cols
menu_height = 21
menu_width = 40
start_y = (max_y - menu_height) % 2
start_x = (max_x - menu_width) % 2
clrset=1
title = "Rexx Address Book"
with_box = .true
menuwin = self~DrawSubPanel(menu_height, menu_width, start_y, start_x, clrset, title, with_box)
menu_items = .array~of("[A]dd Contact", "[R]emove Contact", "[E]dit Contact", "[S]earch", "[L]ist All", "[Q]uit")
menu_keys = .array~of("a", "r", "e", "s", "l", "q")
/* Display menu items */
.environment~selected = 1
self~DrawMenu(menuwin, menu_items, .environment~selected, win)
menuwin~refresh
RETURN
::method DrawMenu
expose win menu_items menu_keys selected mainwin
use arg menuwin, items, selected, mainwin
do i = 1 to items~items
if i = .environment~selected then do
menuwin~attron(menuwin~attron(menuwin~A_REVERSE))
menuwin~attron(menuwin~A_BOLD)
menuwin~mvaddstr(i+3, 2, items[i])
menuwin~attroff(menuwin~A_REVERSE)
menuwin~attroff(menuwin~A_BOLD)
end
else do
menuwin~mvaddstr(i+3, 2, items[i])
end
end
menuwin~refresh
return
/** MAIN LOOP **/
::method mainLoop
expose win mainMenu menuwin selected menu_items menu_keys
menuwin~refresh
running = .true
do while running
key = win~getch
old_selected = .environment~selected
select
when key = menuwin~KEY_UP then do
if .environment~selected > 1 then .environment~selected = .environment~selected - 1
self~DrawMenu(menuwin, menu_items, .environment~selected, win)
menuwin~refresh
end
when key = menuwin~KEY_DOWN then do
if .environment~selected < menu_items~items then .environment~selected = .environment~selected + 1
self~DrawMenu(menuwin, menu_items, .environment~selected, win)
menuwin~refresh
end
when key = D2C(81) | key = D2C(113) | key = "q" | key = C2D("q") then do
menuwin~endwin
.environment['STOPNOW'] = 1
RETURN
end
when key = D2C(10) | key = D2C(13) then do /* Enter key - numeric codes only */
menuwin~refresh
self~ProcessSelection(menuwin, menu_keys[.environment~selected])
return
end
otherwise do
if datatype(key) = 'CHAR' then do
key = lower(key)
pos = self~findInArray(menu_keys, key)
if pos > 0 then do
menuwin~mvaddstr(19 - 1, 18, "Letter selection ["||key||"]")
menuwin~refresh
call SysWait 0.5
self~ProcessSelection(menuwin, key)
return
end
end
end /* otherwise */
end /* select */
/* Only redraw if selection changed */
if old_selected \= .environment~selected then do
self~DrawMenu(menuwin, menu_items, .environment~selected, win)
end
end /* do while running */
return
/* Process selection */
::METHOD ProcessSelection
expose menu_items menu_keys
use arg menuwin, key_char
select
when key_char = 'a' then do
menuwin~mvaddstr(19 - 3, 5, "I would launch the ADD panel ");
menuwin~refresh
call SysWait 1
END
when key_char = 'r' then do
menuwin~mvaddstr(19 - 3, 5, "I would launch the REMOVE panel ");
menuwin~refresh
call SysWait 1
END
when key_char = 'e' then do
menuwin~mvaddstr(19 - 3, 5, "I would launch the EDIT panel ");
menuwin~refresh
call SysWait 1
END
when key_char = 's' then do
menuwin~mvaddstr(19 - 3, 5, "I would launch the SEARCH panel ");
menuwin~refresh
call SysWait 1
END
when key_char = 'l' then do
menuwin~mvaddstr(19 - 3, 5, "I would launch the LIST panel ")
menuwin~refresh
call SysWait 1
END
when key_char = 'q' then do
menuwin~mvaddstr(19 - 3, 5, "Exiting The Application... ");
menuwin~refresh
call SysWait 1
menuwin~endwin
.environment['STOPNOW'] = 1
END
otherwise nop
end
return
::METHOD findInArray
use arg array, item
do i = 1 to array~items
if array[i] = item then return i
end
return 0 /* Not found */
::method cleanup
expose win
/* Clean up ncurses */
win~endwin
return