Golang Window.Scroll方法代码示例

// Prints messages to the message window
func printToMsgWindow(msg string, msgWin *gc.Window, amSending bool) {
	lines := int(len(msg)/(msgWinSize_x-1)) + 1
	if amSending == true {
		msgWin.Scroll(lines)
		msgWin.ColorOn(2)
		msgWin.MovePrint((msgWinSize_y - lines), 0, msg)
	} else {
		if strings.ContainsAny(msg, "\n") {
			printByLineBreakdown := strings.Split(msg, "\n")
			for i, val := range printByLineBreakdown {
				if i != 0 {
					msgWin.Scroll(1)
				}
				lines2 := int(len(val)/(msgWinSize_x-1)) + 1
				if lines2 > 1 {
					msgWin.Scroll(lines2)
					msgWin.ColorOn(1)
					msgWin.MovePrint((msgWinSize_y - lines2), int(msgWinSize_x*3/4), val)
				} else {
					msgWin.Scroll(lines2)
					msgWin.ColorOn(1)
					space_buf := (msgWinSize_x) - len(val)
					msgWin.MovePrint((msgWinSize_y - lines), space_buf, val)
					msgWin.Scroll(-1)
				}
			}
		} else {
			if lines > 1 {
				msgWin.Scroll(lines)
				msgWin.ColorOn(1)
				msgWin.MovePrint((msgWinSize_y - lines), int(msgWinSize_x*3/4), msg)
			} else {
				msgWin.Scroll(lines)
				msgWin.ColorOn(1)
				space_buf := (msgWinSize_x) - len(msg)
				msgWin.MovePrint((msgWinSize_y - lines), space_buf, msg)
				msgWin.Scroll(-1)
			}
		}
	}
	msgWin.Refresh()
	globalInputWin.Refresh()
}

// 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.........