python诅咒鼠标滚轮

Question

有没有人知道是否有可能在诅咒中处理鼠标滚轮运动？我想他们应该和箭头键一样。一个例子将不胜感激。

谢谢。

Answer 1

我想这是系统和终端相关的。我写了以下内容 - 它只捕获鼠标状态并将它们打印到屏幕上。我能够使用xterm在Mac OSX中接收鼠标滚动事件。 （向上滚动注册为我的按钮4;如向下按钮2 - 但它并没有使用原生的终端应用工作）

如果你看看在这段代码

将变得清晰，你必须使用scr.getch()第一，并测试它是否返回curses.KEY_MOUSE。如果是这样，那么可以调用curses.getmouse()，它返回一个包含设备ID，坐标和状态标志的元组。

import curses 
from contextlib import contextmanager 

@contextmanager 
def open_screen(): 
    scr = curses.initscr() 
    curses.noecho() 
    curses.cbreak() 
    scr.keypad(1) 
    try: 
     yield scr 
    finally: 
     curses.nocbreak() 
     scr.keypad(0) 
     curses.echo() 
     curses.endwin() 

curses_mouse_states = { 
    curses.BUTTON1_PRESSED: 'Button 1 Pressed', 
    curses.BUTTON1_RELEASED: 'Button 1 Released', 
    curses.BUTTON1_CLICKED: 'Button 1 Clicked', 
    curses.BUTTON1_DOUBLE_CLICKED: 'Button 1 Double-Clicked', 
    curses.BUTTON1_TRIPLE_CLICKED: 'Button 1 Triple-Clicked', 

    curses.BUTTON2_PRESSED: 'Button 2 Pressed', 
    curses.BUTTON2_RELEASED: 'Button 2 Released', 
    curses.BUTTON2_CLICKED: 'Button 2 Clicked', 
    curses.BUTTON2_DOUBLE_CLICKED: 'Button 2 Double-Clicked', 
    curses.BUTTON2_TRIPLE_CLICKED: 'Button 2 Triple-Clicked', 

    curses.BUTTON3_PRESSED: 'Button 3 Pressed', 
    curses.BUTTON3_RELEASED: 'Button 3 Released', 
    curses.BUTTON3_CLICKED: 'Button 3 Clicked', 
    curses.BUTTON3_DOUBLE_CLICKED: 'Button 3 Double-Clicked', 
    curses.BUTTON3_TRIPLE_CLICKED: 'Button 3 Triple-Clicked', 

    curses.BUTTON4_PRESSED: 'Button 4 Pressed', 
    curses.BUTTON4_RELEASED: 'Button 4 Released', 
    curses.BUTTON4_CLICKED: 'Button 4 Clicked', 
    curses.BUTTON4_DOUBLE_CLICKED: 'Button 4 Double-Clicked', 
    curses.BUTTON4_TRIPLE_CLICKED: 'Button 4 Triple-Clicked', 

    curses.BUTTON_SHIFT: 'Button Shift', 
    curses.BUTTON_CTRL: 'Button Ctrl', 
    curses.BUTTON_ALT: 'Button Alt' 
} 

with open_screen() as scr: 
    curses.mousemask(-1) 
    while True: 
     c = scr.getch() 
     if c == curses.KEY_MOUSE: 
      mouse_state = curses.getmouse()[4] 
      states = '; '.join(state_string for state, state_string 
           in curses_mouse_states.viewitems() 
           if mouse_state & state) 
      scr.addstr(0, 0, states) 
      scr.clrtoeol() 
      scr.refresh() 
     elif c == ord('q'): 
      break