Golang Window.CursorYX方法代码示例

func (cw *chatWin) handleInput(win *goncurses.Window) (line string) {
	k := win.GetChar()
	if k == 0 {
		return ""
	}

	// some systems send a DEL ASCII character instead of KEY_BACKSPACE
	// account for both just in case
	if k == 127 {
		k = goncurses.KEY_BACKSPACE
	}

	switch k {
	case goncurses.KEY_TAB: // tab
	// case goncurses.KEY_RETURN: // enter key vs. KEY_ENTER
	case goncurses.KEY_DOWN: // down arrow key
	case goncurses.KEY_UP: // up arrow key
	case goncurses.KEY_LEFT: // left arrow key
	case goncurses.KEY_RIGHT: // right arrow key
	case goncurses.KEY_HOME: // home key
	case goncurses.KEY_BACKSPACE: // backpace
		if len(cw.line) > 0 {
			cw.line = cw.line[:len(cw.line)-1]
		}
		y, x := win.CursorYX()
		// TODO: handle this more elegantly (e.g. tell ncurses not to print backspaces)
		// we have to do this three times because ncurses inserts two characters for backspace
		// this is likely wrong in some cases
		for i := 0; i < 3; i++ {
			y, x = cw.moveLeft(y, x)
			win.MoveDelChar(y, x)
		}
		win.Refresh()
	case goncurses.KEY_F1: // F1 key
	case goncurses.KEY_F2: // F2 key
	case goncurses.KEY_F3: // F3 key
	case goncurses.KEY_F4: // F4 key
	case goncurses.KEY_F5: // F5 key
	case goncurses.KEY_F6: // F6 key
	case goncurses.KEY_F7: // F7 key
	case goncurses.KEY_F8: // F8 key
	case goncurses.KEY_F9: // F9 key
	case goncurses.KEY_F10: // F10 key
	case goncurses.KEY_F11: // F11 key
	case goncurses.KEY_F12: // F12 key
	case goncurses.KEY_DL: // delete-line key
	case goncurses.KEY_IL: // insert-line key
	case goncurses.KEY_DC: // delete-character key
	case goncurses.KEY_IC: // insert-character key
	case goncurses.KEY_EIC: // sent by rmir or smir in insert mode
	case goncurses.KEY_CLEAR: // clear-screen or erase key3
	case goncurses.KEY_EOS: // clear-to-end-of-screen key
	case goncurses.KEY_EOL: // clear-to-end-of-line key
	case goncurses.KEY_SF: // scroll-forward key
	case goncurses.KEY_SR: // scroll-backward key
	case goncurses.KEY_PAGEDOWN: // page-down key (next-page)
	case goncurses.KEY_PAGEUP: // page-up key (prev-page)
	case goncurses.KEY_STAB: // set-tab key
	case goncurses.KEY_CTAB: // clear-tab key
	case goncurses.KEY_CATAB: // clear-all-tabs key
	case goncurses.KEY_RETURN: // enter key vs. KEY_ENTER
		fallthrough
	case goncurses.KEY_ENTER: // enter/send key
		line = cw.line
		cw.line = ""
		win.Erase()
		win.Print(PROMPT)
	case goncurses.KEY_PRINT: // print key
	case goncurses.KEY_LL: // lower-left key (home down)
	case goncurses.KEY_A1: // upper left of keypad
	case goncurses.KEY_A3: // upper right of keypad
	case goncurses.KEY_B2: // center of keypad
	case goncurses.KEY_C1: // lower left of keypad
	case goncurses.KEY_C3: // lower right of keypad
	case goncurses.KEY_BTAB: // back-tab key
	case goncurses.KEY_BEG: // begin key
	case goncurses.KEY_CANCEL: // cancel key
	case goncurses.KEY_CLOSE: // close key
	case goncurses.KEY_COMMAND: // command key
	case goncurses.KEY_COPY: // copy key
	case goncurses.KEY_CREATE: // create key
	case goncurses.KEY_END: // end key
	case goncurses.KEY_EXIT: // exit key
	case goncurses.KEY_FIND: // find key
	case goncurses.KEY_HELP: // help key
	case goncurses.KEY_MARK: // mark key
	case goncurses.KEY_MESSAGE: // message key
	case goncurses.KEY_MOVE: // move key
	case goncurses.KEY_NEXT: // next key
	case goncurses.KEY_OPEN: // open key
	case goncurses.KEY_OPTIONS: // options key
	case goncurses.KEY_PREVIOUS: // previous key
	case goncurses.KEY_REDO: // redo key
	case goncurses.KEY_REFERENCE: // reference key
	case goncurses.KEY_REFRESH: // refresh key
	case goncurses.KEY_REPLACE: // replace key
	case goncurses.KEY_RESTART: // restart key
	case goncurses.KEY_RESUME: // resume key
	case goncurses.KEY_SAVE: // save key
	case goncurses.KEY_SBEG: // shifted begin key
//.........这里部分代码省略.........

// handles keyboard input
func inputHandler(inputWin *gc.Window, stdscr *gc.Window, contactsMenuWin *gc.Window, contactMenu *gc.Menu, msgWin *gc.Window) {
	var NLlocate = map[int]newLine{}
	var c gc.Char
	var rawInput gc.Key
	max_y, max_x := inputWin.MaxYX()
	for {
		rawInput = inputWin.GetChar()
		c = gc.Char(rawInput)
		// debugLog.Println(rawInput)
		// debugLog.Println(c)

		//Escape to Quit
		if c == gc.Char(27) {
			break
		} else if rawInput == gc.KEY_BACKSPACE || c == gc.Char(127) {
			//Delete Key
			y, x := inputWin.CursorYX()
			var del = byte('F')
			if x != 0 {
				inputWin.MoveDelChar(y, x-1)
				del = inputBuffer[placer]
				copy(inputBuffer[placer:len(inputBuffer)-1], inputBuffer[placer+1:])
				inputBuffer = inputBuffer[0 : len(inputBuffer)-1]
				placer--
				if del != byte('\n') && NLlocate[y+scroll]._cursorX > x {
					temp := newLine{NLlocate[y+scroll]._cursorX - 1, NLlocate[y+scroll]._placer - 1}
					NLlocate[y+scroll] = temp
				}
				//debugLog.Println(inputBuffer)
			} else if y != 0 { //when x==0 and y!=0
				inputWin.Move(y-1, max_x-1)
				inputWin.MoveDelChar(y-1, max_x-1)
				del = inputBuffer[placer]
				copy(inputBuffer[placer:len(inputBuffer)-1], inputBuffer[placer+1:])
				inputBuffer = inputBuffer[0 : len(inputBuffer)-1]
				//debugLog.Println(inputBuffer)
				placer--
			}
			if del == byte('\n') {
				inputWin.Erase()
				inputWin.Print(string(inputBuffer))
				inputWin.Move(y-1, NLlocate[y-1+scroll]._cursorX)
				temp, check := NLlocate[y+scroll]
				var temp_cursor = temp._cursorX
				var temp_placer = temp._placer
				if check && NLlocate[y-1+scroll]._cursorX+temp_cursor >= max_x {
					_newLine := newLine{NLlocate[y-1+scroll]._cursorX + temp_cursor - max_x, NLlocate[y+scroll]._placer - 1}
					NLlocate[y+scroll] = _newLine
					delete(NLlocate, y-1)
				} else if check { // check if there are any '\n' this line
					var largest = -1          // if yes, select all '\n' and move
					for i := range NLlocate { // placer by 1 and adjust cursor
						if i >= y+scroll { // accordingly
							if next_nl, ok := NLlocate[i+1]; ok {
								new_nl := newLine{next_nl._cursorX, next_nl._placer - 1}
								NLlocate[i] = new_nl
							}
						}
						if i > largest {
							largest = i
						}
					}
					delete(NLlocate, largest) // delete last map entry
					_newLine := newLine{NLlocate[y-1+scroll]._cursorX + temp_cursor, NLlocate[y-1+scroll]._placer + temp_placer - 1}
					NLlocate[y-1+scroll] = _newLine
				} else {
					delete(NLlocate, y-1+scroll)
				}
			}
		} else if c == gc.KEY_PAGEDOWN {
			//debugLog.Println("HIT DOWN")
			msgWin.Scroll(-10)
			msgWin.Refresh()
			inputWin.Refresh()
		} else if c == gc.KEY_PAGEUP {
			//debugLog.Println("HIT UP")
			msgWin.Scroll(10)
			msgWin.Refresh()
			inputWin.Refresh()
		} else if c == gc.KEY_LEFT {
			y, x := inputWin.CursorYX()
			if x != 0 {
				inputWin.Move(y, x-1)
				placer--
			} else if y != 0 {
				inputWin.Move(y-1, max_x-1)
				placer--
			}
			if len(inputBuffer) > 0 && inputBuffer[placer+1] == byte('\n') {
				inputWin.Move(y-1, NLlocate[y-1+scroll]._cursorX)
			}
		} else if c == gc.KEY_RIGHT {
			y, x := inputWin.CursorYX()
			placer++
			if inputBuffer == nil || placer == len(inputBuffer) {
				inputBuffer = append(inputBuffer, byte(' '))
			}
			if inputBuffer[placer] == byte('\n') || x >= max_x-1 {
				inputWin.Move(y+1, 0)
//.........这里部分代码省略.........