func Init(theme *ColorTheme, black bool, mouse bool) {
C.setlocale(C.LC_ALL, C.CString(""))
tty := C.c_tty()
if tty == nil {
fmt.Println("Failed to open /dev/tty")
os.Exit(2)
}
_screen = C.c_newterm(tty)
if _screen == nil {
fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
os.Exit(2)
}
C.set_term(_screen)
if mouse {
C.mousemask(C.ALL_MOUSE_EVENTS, nil)
C.mouseinterval(0)
}
C.noecho()
C.raw() // stty dsusp undef
C.nonl()
C.keypad(C.stdscr, true)
delay := 50
delayEnv := os.Getenv("ESCDELAY")
if len(delayEnv) > 0 {
num, err := strconv.Atoi(delayEnv)
if err == nil && num >= 0 {
delay = num
}
}
C.set_escdelay(C.int(delay))
_color = theme != nil
if _color {
C.start_color()
InitTheme(theme, black)
initPairs(theme)
C.bkgd(C.chtype(C.COLOR_PAIR(C.int(ColNormal))))
_colorFn = attrColored
} else {
_colorFn = attrMono
}
C.nodelay(C.stdscr, true)
ch := C.getch()
if ch != C.ERR {
C.ungetch(ch)
}
C.nodelay(C.stdscr, false)
}
func (r *FullscreenRenderer) Init() {
C.setlocale(C.LC_ALL, C.CString(""))
tty := C.c_tty()
if tty == nil {
errorExit("Failed to open /dev/tty")
}
_screen = C.c_newterm(tty)
if _screen == nil {
errorExit("Invalid $TERM: " + os.Getenv("TERM"))
}
C.set_term(_screen)
if r.mouse {
C.mousemask(C.ALL_MOUSE_EVENTS, nil)
C.mouseinterval(0)
}
C.noecho()
C.raw() // stty dsusp undef
C.nonl()
C.keypad(C.stdscr, true)
delay := 50
delayEnv := os.Getenv("ESCDELAY")
if len(delayEnv) > 0 {
num, err := strconv.Atoi(delayEnv)
if err == nil && num >= 0 {
delay = num
}
}
C.set_escdelay(C.int(delay))
if r.theme != nil {
C.start_color()
initTheme(r.theme, r.defaultTheme(), r.forceBlack)
initPairs(r.theme)
C.bkgd(C.chtype(C.COLOR_PAIR(C.int(ColNormal.index()))))
_colorFn = attrColored
} else {
initTheme(r.theme, nil, r.forceBlack)
_colorFn = attrMono
}
C.nodelay(C.stdscr, true)
ch := C.getch()
if ch != C.ERR {
C.ungetch(ch)
}
C.nodelay(C.stdscr, false)
}
func (r *FullscreenRenderer) GetChar() Event {
c := C.getch()
switch c {
case C.ERR:
// Unexpected error from blocking read
r.Close()
errorExit("Failed to read /dev/tty")
case C.KEY_UP:
return Event{Up, 0, nil}
case C.KEY_DOWN:
return Event{Down, 0, nil}
case C.KEY_LEFT:
return Event{Left, 0, nil}
case C.KEY_RIGHT:
return Event{Right, 0, nil}
case C.KEY_HOME:
return Event{Home, 0, nil}
case C.KEY_END:
return Event{End, 0, nil}
case C.KEY_BACKSPACE:
return Event{BSpace, 0, nil}
case C.KEY_F0 + 1:
return Event{F1, 0, nil}
case C.KEY_F0 + 2:
return Event{F2, 0, nil}
case C.KEY_F0 + 3:
return Event{F3, 0, nil}
case C.KEY_F0 + 4:
return Event{F4, 0, nil}
case C.KEY_F0 + 5:
return Event{F5, 0, nil}
case C.KEY_F0 + 6:
return Event{F6, 0, nil}
case C.KEY_F0 + 7:
return Event{F7, 0, nil}
case C.KEY_F0 + 8:
return Event{F8, 0, nil}
case C.KEY_F0 + 9:
return Event{F9, 0, nil}
case C.KEY_F0 + 10:
return Event{F10, 0, nil}
case C.KEY_F0 + 11:
return Event{F11, 0, nil}
case C.KEY_F0 + 12:
return Event{F12, 0, nil}
case C.KEY_DC:
return Event{Del, 0, nil}
case C.KEY_PPAGE:
return Event{PgUp, 0, nil}
case C.KEY_NPAGE:
return Event{PgDn, 0, nil}
case C.KEY_BTAB:
return Event{BTab, 0, nil}
case C.KEY_ENTER:
return Event{CtrlM, 0, nil}
case C.KEY_SLEFT:
return Event{SLeft, 0, nil}
case C.KEY_SRIGHT:
return Event{SRight, 0, nil}
case C.KEY_MOUSE:
var me C.MEVENT
if C.getmouse(&me) != C.ERR {
mod := ((me.bstate & C.BUTTON_SHIFT) | (me.bstate & C.BUTTON_CTRL) | (me.bstate & C.BUTTON_ALT)) > 0
x := int(me.x)
y := int(me.y)
/* Cannot use BUTTON1_DOUBLE_CLICKED due to mouseinterval(0) */
if (me.bstate & C.BUTTON1_PRESSED) > 0 {
now := time.Now()
if now.Sub(r.prevDownTime) < doubleClickDuration {
r.clickY = append(r.clickY, y)
} else {
r.clickY = []int{y}
r.prevDownTime = now
}
return Event{Mouse, 0, &MouseEvent{y, x, 0, true, false, mod}}
} else if (me.bstate & C.BUTTON1_RELEASED) > 0 {
double := false
if len(r.clickY) > 1 && r.clickY[0] == r.clickY[1] &&
time.Now().Sub(r.prevDownTime) < doubleClickDuration {
double = true
}
return Event{Mouse, 0, &MouseEvent{y, x, 0, false, double, mod}}
} else if (me.bstate&0x8000000) > 0 || (me.bstate&0x80) > 0 {
return Event{Mouse, 0, &MouseEvent{y, x, -1, false, false, mod}}
} else if (me.bstate & C.BUTTON4_PRESSED) > 0 {
return Event{Mouse, 0, &MouseEvent{y, x, 1, false, false, mod}}
}
}
return Event{Invalid, 0, nil}
case C.KEY_RESIZE:
return Event{Resize, 0, nil}
case ESC:
return escSequence()
case 127:
return Event{BSpace, 0, nil}
}
// CTRL-A ~ CTRL-Z
if c >= CtrlA && c <= CtrlZ {
return Event{int(c), 0, nil}
}
// Multi-byte character
buffer := []byte{byte(c)}
for {
r, _ := utf8.DecodeRune(buffer)
if r != utf8.RuneError {
return Event{Rune, r, nil}
}
c := C.getch()
if c == C.ERR {
break
}
if c >= C.KEY_CODE_YES {
C.ungetch(c)
break
}
buffer = append(buffer, byte(c))
}
return Event{Invalid, 0, nil}
}