// makes the menu inside the contacts window
func makeContactsMenu(contacts []ts.Contact, contactsWin *gc.Window) ([]*gc.MenuItem, *gc.Menu, *gc.Window) {
menu_items := make([]*gc.MenuItem, len(contacts))
var err error
for i, val := range contacts {
menu_items[i], err = gc.NewItem((val.Name), "")
if err != nil {
log.Fatal("Error making item for contact menu... ", err)
}
}
contactMenu, err := gc.NewMenu(menu_items)
if err != nil {
log.Fatal("Error creating contact menu from menu_items... ", err)
}
contactsWinSizeY, contactsWinSizeX := contactsWin.MaxYX()
contactsWin.Keypad(true)
contactsMenuWin := contactsWin.Derived((contactsWinSizeY - 5), (contactsWinSizeX - 2), 3, 1)
contactMenu.SetWindow(contactsMenuWin)
contactMenu.Format(len(contacts), 1)
contactMenu.Mark(" * ")
title := "Contacts"
contactsWin.MovePrint(1, (contactsWinSizeX/2)-(len(title)/2), title)
contactsWin.HLine(2, 1, '-', contactsWinSizeX-2)
contactsMenuWin.Keypad(true)
contactsMenuWin.ScrollOk(true)
return menu_items, contactMenu, contactsMenuWin
}
//sets up the initial configuration of curses. Keeps code in main cleaner.
func configCurses(stdscr *gc.Window) {
if !gc.HasColors() {
log.Fatal("Example requires a colour capable terminal")
}
if err := gc.StartColor(); err != nil {
log.Fatal("Starting Colors failed:", err)
}
gc.Echo(false)
if err := gc.InitPair(1, gc.C_RED, gc.C_BLACK); err != nil {
log.Fatal("InitPair failed: ", err)
}
gc.InitPair(2, gc.C_BLUE, gc.C_BLACK)
gc.InitPair(3, gc.C_GREEN, gc.C_BLACK)
gc.InitPair(4, gc.C_YELLOW, gc.C_BLACK)
gc.InitPair(5, gc.C_CYAN, gc.C_BLACK)
gc.InitPair(6, gc.C_MAGENTA, gc.C_WHITE)
gc.InitPair(7, gc.C_MAGENTA, gc.C_BLACK)
//set background color to black
stdscr.SetBackground(gc.Char(' ') | gc.ColorPair(0))
stdscr.Keypad(true)
gc.Cursor(1)
gc.CBreak(true)
stdscr.Clear()
}
//creates the three Main big windows that make up the GUI
func createMainWindows(stdscr *gc.Window) (*gc.Window, *gc.Window, *gc.Window, *gc.Window, *gc.Window) {
rows, cols := stdscr.MaxYX()
height, width := rows, int(float64(cols)*.2)
var contactsWin, messageWinBorder, inputBorderWin, inputWin *gc.Window
var err error
contactsWin, err = gc.NewWindow(height, width, 0, 0)
if err != nil {
log.Fatal("Failed to create Contact Window:", err)
}
err = contactsWin.Border('|', '|', '-', '-', '+', '+', '+', '+')
if err != nil {
log.Fatal("Failed to create Border of Contact Window:", err)
}
// messageWinBorder is just the border. msgWin is the actual input window
// doing this simplifies handling text a fair amount.
// also the derived function never errors. Which seems dangerous
begin_x := width + 1
height = int(float64(rows) * .8)
width = int(float64(cols) * .8)
messageWinBorder, err = gc.NewWindow(height, width, 0, begin_x)
if err != nil {
log.Fatal("Failed to create Message Border Window:", err)
}
err = messageWinBorder.Border('|', '|', '-', '-', '+', '+', '+', '+')
if err != nil {
log.Fatal("Failed to create Border of Message Window:", err)
}
msgWin, err := gc.NewWindow((height - 2), (width - 2), 1, (begin_x + 1))
if err != nil {
log.Fatal("Failed to create the message Window:", err)
}
begin_y := int(float64(rows)*.8) + 1
height = int(float64(rows) * .2)
inputBorderWin, err = gc.NewWindow(height, width, begin_y, begin_x)
if err != nil {
log.Fatal("Failed to create InputBorder Window:", err)
}
err = inputBorderWin.Border('|', '|', '-', '-', '+', '+', '+', '+')
if err != nil {
log.Fatal("Failed to create Border of the InputBorder Window:", err)
}
// inputBorderWin is just the border. InputWin is the actual input window
// doing this simplifies handling text a fair amount.
// also the derived function never errors. Which seems dangerous
inputWin, err = gc.NewWindow((height - 2), (width - 2), (begin_y + 1), (begin_x + 1))
if err != nil {
log.Fatal("Failed to create the inputWin Window:", err)
}
inputWin.ScrollOk(true)
inputWin.Keypad(true)
msgWin.ScrollOk(true)
return contactsWin, messageWinBorder, msgWin, inputBorderWin, inputWin
}
func windw() {
stdscr, err := gc.Init()
if err != nil {
log.Fatal(err)
}
defer gc.End()
// Turn off character echo, hide the cursor and disable input buffering
gc.Echo(false)
gc.CBreak(true)
gc.Cursor(0)
stdscr.Print("Use arrow keys to move the window. Press 'q' to exit")
stdscr.NoutRefresh()
// Determine the center of the screen and offset those coordinates by
// half of the window size we are about to create. These coordinates will
// be used to move our window around the screen
rows, cols := stdscr.MaxYX()
height, width := 20, 40
y, x := (rows-height)/2, (cols-width)/2
// Create a new window centered on the screen and enable the use of the
// keypad on it so the arrow keys are available
var win *gc.Window
win, err = gc.NewWindow(height, width, y, x)
if err != nil {
log.Fatal(err)
}
win.Keypad(true)
windw:
for {
// Clear the section of screen where the box is currently located so
// that it is blanked by calling Erase on the window and refreshing it
// so that the chances are sent to the virtual screen but not actually
// output to the terminal
win.Erase()
win.NoutRefresh()
// Move the window to it's new location (if any) and redraw it
win.MoveWindow(y, x)
win.Box(gc.ACS_VLINE, gc.ACS_HLINE)
win.NoutRefresh()
// Update will flush only the characters which have changed between the
// physical screen and the virtual screen, minimizing the number of
// characters which must be sent
gc.Update()
// In order for the window to display correctly, we must call GetChar()
// on it rather than stdscr
switch win.GetChar() {
case 'q':
break windw
case 'h':
if x > 0 {
x--
}
case 'l':
if x < cols-width {
x++
}
case 'k':
if y > 1 {
y--
}
case 'j':
if y < rows-height {
y++
}
}
}
win.Delete()
}
