Python库 | lfm-2.0.tar.gz

# -*- coding: utf-8 -*- """messages.py This module contains some windows for lfm use. """ import sys import os.path import curses import curses.panel import files ###################################################################### ##### module variables app = None historic = [] HISTORIC_MAXLEN = 100 ###################################################################### class CommonWindow: """A superclass for 'error' and 'win' windows""" def __init__(self, title, text, br_att, br_bg, bd_att, bd_bg, waitkey = 1): self.waitkey = waitkey text = text.replace('\t', ' ' * 4) lines = text.split('\n') length = max(map(len, lines)) if self.waitkey: w = min(max(max(length+6, 27+4), len(title)+6), app.maxw-2) if length < 27 + 4 and len(title) <= length: w -= 1 else: w = min(max(length+6, len(title)+6), app.maxw-2) if len(title) < length: w -= 1 h = len(lines) + 4 for l in lines: h += int((len(l)+1) / (app.maxw-2)) if h > app.maxh - 4: h = app.maxh - 4 text = ''.join([l+'\n' for l in lines[-5:]]) try: win = curses.newwin(h, w, int((app.maxh-h)/2), int((app.maxw-w)/2)) self.pwin = curses.panel.new_panel(win) self.pwin.top() except curses.error: print 'Can\'t create window' sys.exit(-1) win.bkgd(br_bg, br_att) win.erase() win.box(0, 0) if len(title) > app.maxw-14: title = title[:app.maxw-10] + '...' + '\'' win.addstr(0, int((w-len(title)-2)/2), ' %s ' % title, curses.A_BOLD) if h == 5: win.addstr(2, 2, text, bd_att) else: win.addstr(2, 1, text, bd_att) if self.waitkey: win.addstr(h-1, int((w-27)/2), ' Press any key to continue ', br_att) win.refresh() win.keypad(1) def run(self): if self.waitkey: while not self.pwin.window().getch(): pass self.pwin.hide() class FixSizeCommonWindow: """A superclass for messages, with fixed size""" def __init__(self, title, text, downtext, br_att, br_bg, bd_att, bd_bg, waitkey = 1): self.waitkey = waitkey text = text.replace('\t', ' ' * 4) w = app.maxw - 20 if len(title) > w - 4: title = title[:w-4] if len(text) > w - 4: text = text[:w-5] if len(downtext) > w - 4: downtext = downtext[:w-4] h = 5 try: win = curses.newwin(h, w, int((app.maxh-h)/2), int((app.maxw-w)/2)) self.pwin = curses.panel.new_panel(win) self.pwin.top() except curses.error: print 'Can\'t create window' sys.exit(-1) win.bkgd(br_bg, br_att) win.erase() win.box(0, 0) if len(title) > app.maxw - 14: title = title[:app.maxw-10] + '...' + '\'' win.addstr(0, int((w-len(title)-2)/2), ' %s ' % title, curses.A_BOLD) if h == 5: win.addstr(2, 2, text, bd_att) else: win.addstr(2, 1, text, bd_att) if self.waitkey: win.addstr(h-1, int((w-27)/2), ' Press any key to continue ', br_att) elif downtext: win.addstr(h-1, int((w-len(downtext)-2)/2), ' %s ' % downtext, br_att) win.refresh() win.keypad(1) def run(self): if self.waitkey: while not self.pwin.window().getch(): pass self.pwin.hide() class FixSizeProgressBarWindow: """Like FixSizeCommonWindow but with a ProgressBar""" def __init__(self, title, text, downtext, percent, bd_att, bd_bg, pb_att, pb_bg, waitkey = 1): title = title[:app.maxw-14] text = text[:app.maxw-14] self.waitkey = waitkey text = text.replace('\t', ' ' * 4) w = app.maxw - 20 if len(title) > w - 4: title = title[:w-4] if len(text) > w - 4: text = text[:w-5] if len(downtext) > w - 4: downtext = downtext[:w-4] h = 7 self.h, self.w = h, w self.bd_att, self.pb_att = bd_att, pb_att try: win = curses.newwin(h, w, int((app.maxh-h)/2), int((app.maxw-w)/2)) self.progressbar = curses.newpad(1, w-11+1) self.pwin = curses.panel.new_panel(win) self.pwin.top() except curses.error: print 'Can\'t create window' sys.exit(-1) win.bkgd(bd_bg, bd_att) self.progressbar.bkgd(curses.ACS_CKBOARD, pb_bg) win.erase() win.keypad(1) def show(self, title, text, downtext, percent): self.pwin.window().erase() self.pwin.window().box(0, 0) if len(title) > app.maxw - 14: title = title[:app.maxw-10] + '...' + '\'' self.pwin.window().addstr(0, int((self.w-len(title)-2)/2), ' %s ' % title, curses.A_BOLD) self.pwin.window().addstr(2, 2, text) w1 = percent * (self.w-11) / 100 self.progressbar.erase() self.progressbar.addstr(0, 0, ' ' * w1, self.pb_att | curses.A_BOLD) self.pwin.window().addstr(self.h-3, self.w-8, '[%3d%%]' % percent) if self.waitkey: self.pwin.window().addstr(self.h-1, int((self.w-27)/2), ' Press any key to continue ') elif downtext: self.pwin.window().addstr(self.h-1, int((self.w-len(downtext)-2)/2), ' %s ' % downtext) self.pwin.window().refresh() y0 = int((app.maxh-self.h)/2) + 4 x0 = int((app.maxw-self.w)/2) + 2 self.progressbar.refresh(0, 0, y0, x0, y0+1, x0+self.w-12) self.pwin.window().refresh() ###################################################################### def error(title, msg = '', file = ''): """show an error window""" if file == '': buf = msg else: buf = '%s: %s' % (file, msg) CommonWindow(title, buf, curses.color_pair(8), curses.color_pair(8), curses.color_pair(7) | curses.A_BOLD, curses.color_pair(7)).run() ###################################################################### def win(title, text): """show a message window and wait for a key""" CommonWindow(title, text, curses.color_pair(1), curses.color_pair(1), curses.color_pair(4), curses.color_pair(4)).run() def win_nokey(title, text, downtext = ''): """show a message window, does not wait for a key""" FixSizeCommonWindow(title, text, downtext, curses.color_pair(1), curses.color_pair(1), curses.color_pair(1), curses.color_pair(1), waitkey = 0).run() ###################################################################### def notyet(title): """show a not-yet-implemented message""" CommonWindow(title, 'Sorry, but this function\n is not implemented yet!', curses.color_pair(1) | curses.A_BOLD, curses.color_pair(1), curses.color_pair(4), curses.color_pair(4)).run() ###################################################################### def get_a_key(title, question): """show a window returning key pressed""" question = question.replace('\t', ' ' * 4) lines = question.split('\n') length = max(map(len, lines)) h = min(len(lines)+4, app.maxh-2) w = min(length+4, app.maxw-2) try: win = curses.newwin(h, w, int((app.maxh-h)/2), int((app.maxw-w)/2)) pwin = curses.panel.new_pane