Example #1
0
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)
}
Example #2
0
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)
}
Example #3
0
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}
}