Source code for console.demos

# -*- coding: future_fstrings -*-
'''
    .. console - Comprehensive utility library for ANSI terminals.
    .. ยฉ 2018, Mike Miller - Released under the LGPL, version 3+.

    Demos showing what the library and terminal combo can do.
'''

# try some stuff out
[docs]def build_demos(caption, obj, extra_style=''): ''' Iterate over a Palette container and collect the items to add to demos. ''' items = [] for name in dir(obj): if not name.startswith('_') and not name == 'clear': # types !work attr = getattr(obj, name) if extra_style: items.append(f'{attr + extra_style}{attr.name}{fx.end}') else: items.append(f'{attr}{attr.name}{fx.end}') return caption + ' '.join(items)
# util functions
[docs]def make_header(i): return f' {fx.dim}{i+1:02d}{fx.end} '
[docs]def run(): ''' Run the demos. ''' import time print('\nConsole - ANSI lib demos, here we go:\n') hello_world = f'''Greetings: {fx.bold + fg.blue}Hello {fx.reverse + fg.yellow}World{fg.default + defx.reverse}!{fx.end}''' # styles bad_grammar = fx.curly_underline + ul.i2 bad_spelling = fx.curly_underline + ul.i1 demos = [ hello_world, f'โ†‘ Title: {set_title("Console FTW! ๐Ÿคฃ")!r} (gone in a ยตs.)', f'Combined, bold + underline + red: {fx.bold + fx.underline + fg.red}' + f'Merry {fg.green}X-Mas{fg.default}!{fx.end}', f'Cursor right โ†’ : [{sc.right}] (<-- one space between brackets)', f'Cursor down โ†“ 2: {sc.down(2)}', 'Text wrap: ' + fg.purple('Fill my eyes with that Double Visionโ€ฆ' + BEL, fx.underline, fx.italic, fx.overline), 'hyper-link: ' + make_hyperlink('http://www.coolsiteoftheday.com/', 'Cool Site of the Day!'), 'underline-hijinks: I %s %s' % (bad_grammar('not'), bad_spelling('mizpelled.')), ] if not _SHORT: demos.append(build_demos('FG: ', fg)) demos.append(build_demos('Bold: ', fg, extra_style=fx.bold)) demos.append(build_demos('BG: ', bg, extra_style=fg.black)) demos.append(build_demos('FX: ', fx)) demos.append('Stripped: %r' % strip_ansi(hello_world)) for i, demo in enumerate(demos): print(make_header(i), demo) if _DEBUG: log.debug('%r\n' % demo) if _SHORT: sys.exit() print() print(make_header(i+1), 'with bg:') try: with bg.cornflowerblue: print('\tCan I get the icon in Cornflower Blue?\n\t' 'Absolutely. :-D') except AttributeError: with bg.blue: print('\tCan I get the icon in Cornflower Blue?\n\t' 'Absolutely. :-D') print('\n') print(make_header(i+2), 'Foreground - 256 indexed colors:\n ', end='') for j in range(256): attr = getattr(fg, f'i{j}') print(attr, '%4.4s' % attr.name.lower(), fx.end, end=' ') # newline every 16 columns :-/ if not (j + 1) % 16: print('\n ', end='') print() print(make_header(i+3), 'Background - 256 indexed colors:\n ', end='') for j in range(256): attr = getattr(bg, f'i{j}') print(attr, '%4.4s' % attr.name.lower(), fx.end, end=' ') # NL every 16 columns :-/ if not (j + 1) % 16: print('\n ', end='') print() print(make_header(i+4), 'Foreground - Millions of colors: 24-bit:') print(' fg:', fg.tFF00BB, 'text_FF00BB', fx.end) print(' fg:', fg.tB0B, 'text_BOB', fx.end) print(' fg:', fg.tff00bb, 'text_FF00BB', fx.end) try: print(' fg:', fg.tFF00B, 'text_FF00B', fx.end) except AttributeError as err: print(' ', fg.red, fx.reverse, 'Error:', fx.end, ' ', err, '\n', sep='') print(make_header(i+5), 'Background - 24-bit, Millions of colors:') step = 3 # length of bar 256/3 = ~86 # draw rounded box around gradients print(' โ•ญ' + 'โ”€' * 86, 'โ•ฎ\n โ”‚', sep='', end='') # RED for val in range(0, 256, step): code = format(val, '02x') # probably don't need to end here every time: #~ print(getattr(bg, 't%s0000' % code), fx.end, end='') print(getattr(bg, 't%s0000' % code), end=' ') print(fx.end, 'โ”‚', sep='') print(' โ”‚', sep='', end='') # GREEN for val in range(255, -1, -step): code = format(val, '02x') print(getattr(bg, 't00%s00' % code), fx.end, end='') print('โ”‚') print(' โ”‚', sep='', end='') # BLUE for val in range(0, 256, step): code = format(val, '02x') print(getattr(bg, 't0000%s' % code), fx.end, end='') print('โ”‚') print(' โ•ฐ' + 'โ”€' * 86, 'โ•ฏ\n', sep='', end='') print(flush=True) print(make_header(i+5), 'Progress Bars:') from console.progress import ProgressBar, HiDefProgressBar print() pb = ProgressBar(clear_left=False, label=True, width=36) print(' ', pb(0), end='') print(' ', pb(45), end='') print(' ', pb(99)) print() pb = ProgressBar(clear_left=False, theme='solid', width=32) print(' ', pb(0), end='') print(' ', pb(55), end='') print(' ', pb(99)) print() pb = HiDefProgressBar(clear_left=False, styles='greyen', width=36) print(' ', pb(0), end='') print(' ', pb(55), end='') print(' ', pb(99)) print() print(make_header(i+5), 'Test color downgrade support ' '(True โต Indexed โต Basic):') try: import webcolors; webcolors # pyflakes except ImportError: print(' Test not available without webcolors installed.') sys.exit() if _term_level: bgall = style.BackgroundPalette(level=TermLevel.THE_FULL_MONTY); bge = style.BackgroundPalette(level=TermLevel.ANSI_EXTENDED) bgb = style.BackgroundPalette(level=TermLevel.ANSI_BASIC) print() colors = ( 't_222', # grey 't_808080', # grey 't_ccc', # grey 't_ddd', # grey 't_eee', # grey 't_e95420', # ubuntu orange 'coral', # wc 't_ff00ff', # grey 't_bb00bb', # magenta 'x_bisque', 'x_dodgerblue', # lighter blue 'w_cornflowerblue', # lighter blue 'w_navy', # dark blue 'w_forestgreen', # dark/medium green 'i_28', 'i_160', 'n_a08', 'n_f0f', 't_deadbf', ) for i, color_key in enumerate(colors): full = getattr(bgall, color_key) dwne = getattr(bge, color_key) dwnb = getattr(bgb, color_key) print(' ', '%-18.18s' % (color_key + ':'), full, ' t ', fx.end, # bgall.default dwne, ' i ', fx.end, # broken on windows, mac terminal dwnb, ' b ', fx.end, sep='', end=' ') if i % 2 == 1: print() fgall = style.ForegroundPalette(level=TermLevel.THE_FULL_MONTY); fge = style.ForegroundPalette(level=TermLevel.ANSI_EXTENDED) fgb = style.ForegroundPalette(level=TermLevel.ANSI_BASIC) print(' FG t_deadbf: ', fgall.t_deadbf('โ–‰โ–‰โ–‰โ–‰โ–‰'), fge.t_deadbf('โ–‰โ–‰โ–‰โ–‰โ–‰'), fgb.t_deadbf('โ–‰โ–‰โ–‰โ–‰โ–‰'), fx.end, # win bug sep='') else: print(' Term support not available.') print() if is_a_tty(): try: print(' theme:', get_theme(timeout=1), '\n') print(' color scheme:', get_color('fg', timeout=1), 'on', get_color('bg', timeout=1), end='\n\n') except ModuleNotFoundError: pass # termios - Windows try: print(' About to clear terminal, check title above. โ˜ ' ' (Ctrl+C exits first.) ', end='', flush=True) time.sleep(10) # wait to see terminal title cls() except KeyboardInterrupt: pass print() print() print(' โ˜› Done, should be normal text. โ˜š ') print()
if __name__ == '__main__': import sys, os import logging log = logging.getLogger(__name__) if os.name == 'nt': import env try: # wuc must come before colorama.init() for detection to work. import win_unicode_console as wuc wuc.enable() except ImportError: pass try: if not env.ANSICON: import colorama colorama.init() except ImportError: pass # What needs to be done to get demos to run: _DEBUG = '-d' in sys.argv _SHORT = '-s' in sys.argv if _DEBUG: # set up debug logging fmt = ' %(levelname)-7.7s %(module)s/%(funcName)s:%(lineno)s %(message)s' logging.basicConfig(level=logging.DEBUG, format=fmt) # detection already happened - need to run this again to log it. :-/ from .detection import init from . import style init() fg = style.ForegroundPalette() bg = style.BackgroundPalette() fx = style.EffectsPalette() ul = style.UnderlinePalette() defx = style.EffectsTerminator() from . import _term_level from .constants import BEL, TermLevel from .detection import is_a_tty, get_color, get_theme from .screen import sc from .utils import set_title, strip_ansi, cls, make_hyperlink run()