1 files changed, 197 insertions, 0 deletions
diff --git a/commands.py b/commands.py
new file mode 100755
index 0000000..fc35c54
--- /dev/null
+++ b/commands.py
@@ -0,0 +1,197 @@
+#!/usr/bin/env python
+
+import os, sys, argparse, os.path, json, time, signal, atexit
+from collections import defaultdict
+from pixelterm.pixelterm import termify_pixels, reset_sequence
+from pixelterm.unpixelterm import unpixelterm
+from PIL import Image, PngImagePlugin, GifImagePlugin, ImageSequence
+import re
+
+
+def pixelterm():
+	import os, sys, argparse, os.path, json
+	from multiprocessing.dummy import Pool
+	from PIL import Image, PngImagePlugin
+
+	parser = argparse.ArgumentParser(description='Render pixel images on 256-color ANSI terminals')
+	parser.add_argument('image', type=str, nargs='*')
+	parser.add_argument('-d', '--output-dir', type=str, help='Output directory (if not given, output to stdout)')
+	args = parser.parse_args()
+
+	def convert(f):
+		img = Image.open(f).convert("RGBA")
+		if args.output_dir:
+			print(f)
+			foo, _, _ = f.rpartition('.png')
+			output = os.path.join(args.output_dir, os.path.basename(foo)+'.pony')
+			metadata = json.loads(img.info.get('pixelterm-metadata'))
+			comment = metadata.get('_comment')
+			if comment is not None:
+				del metadata['_comment']
+				comment = '\n'+comment
+			else:
+				comment = ''
+			metadataarea = '$$$\n' +\
+				'\n'.join([ '\n'.join([ k.upper() + ': ' + v for v in metadata[k] ]) for k in sorted(metadata.keys()) ]) +\
+				comment + '\n$$$\n'
+			with open(output, 'w') as of:
+				of.write(metadataarea)
+				of.write(termify_pixels(img))
+		else:
+			print(termify_pixels(img))
+
+	p = Pool()
+	p.map(convert, args.image)
+
+
+def unpixelterm():
+	import argparse, json
+
+	parser = argparse.ArgumentParser(description='Convert images rendered by pixelterm-like utilities back to PNG')
+	parser.add_argument('-v', '--verbose', action='store_true')
+	output_group = parser.add_mutually_exclusive_group()
+	output_group.add_argument('-o', '--output', type=str, help='Output file name, defaults to ${input%.pony}.png')
+	output_group.add_argument('-d', '--output-dir', type=str, help='Place output files here')
+	parser.add_argument('input', type=argparse.FileType('r'), nargs='+')
+	args = parser.parse_args()
+	if len(args.input) > 1 and args.output:
+		parser.print_help()
+		print('You probably do not want to overwrite the given output file {} times.'.format(len(args.input)))
+		sys.exit(1)
+
+	for f in args.input:
+		if len(args.input) > 1:
+			print(f.name)
+		img, metadata = unpixelterm(f.read())
+		pnginfo = PngImagePlugin.PngInfo()
+		pnginfo.add_text('pixelterm-metadata', json.dumps(metadata))
+		foo, _, _ = f.name.rpartition('.pony')
+		output = args.output or foo+'.png'
+		if args.output_dir:
+			output = os.path.join(args.output_dir, os.path.basename(output))
+		img.save(output, 'PNG', pnginfo=pnginfo)
+
+
+clear_screen = '\033[H\033[2J'
+home_cursor = '\033[H'
+cursor_invisible = '\033[?25l'
+cursor_visible = '\033[?25h'
+
+def gifterm():
+	parser = argparse.ArgumentParser(description='Render pixel images on 256-color ANSI terminals')
+	parser.add_argument('image', type=str)
+	parser.add_argument('-s', '--size', type=str, help='Terminal size, [W]x[H]')
+	parser.add_argument('--serve', type=int, help='Serve via TCP on given port')
+	args = parser.parse_args()
+
+	tw, th = None, None
+	if args.size:
+		tw, th = map(int, args.size.split('x'))
+	else:
+		try:
+			tw, th = os.get_terminal_size()
+		except: # If this is not a regular terminal
+			pass
+	th = th*2
+
+	img = Image.open(args.image)
+	palette = img.getpalette()
+	last_frame = Image.new("RGBA", img.size)
+	frames = []
+
+	for frame in ImageSequence.Iterator(img):
+		#This works around a known bug in Pillow
+		#See also: http://stackoverflow.com/questions/4904940/python-converting-gif-frames-to-png
+		frame.putpalette(palette)
+		c = frame.convert("RGBA")
+
+		if img.info['background'] != img.info.get('transparency'):
+			last_frame.paste(c, c)
+		else:
+			last_frame = c
+
+		im = last_frame.copy()
+		if (tw, th) != (None, None):
+			im.thumbnail((tw, th), Image.NEAREST)
+		frames.append(termify_pixels(im, True))
+
+	if args.serve:
+		from socketserver import ThreadingMixIn, TCPServer, BaseRequestHandler
+
+		# Quote-Of-The-Day protocol implementation
+		# See RFC865 ( https://tools.ietf.org/html/rfc865 ) for details.
+
+		class ThreadingTCPServer(ThreadingMixIn, TCPServer): pass
+
+		class QOTDHandler(BaseRequestHandler):
+			def handle(self):
+				try:
+					self.request.sendall(bytes(cursor_invisible, "UTF-8"))
+					while True:
+						for frame in frames:
+							self.request.sendall(bytes(home_cursor + reset_sequence, "UTF-8"))
+							self.request.sendall(bytes(frame, "UTF-8"))
+							time.sleep(min(1/10, img.info['duration']/1000.0))
+				except:
+					pass
+
+		server = ThreadingTCPServer(('', args.serve), QOTDHandler)
+		server.serve_forever()
+	else:
+		print(cursor_invisible)
+		atexit.register(lambda:print(cursor_visible))
+		signal.signal(signal.SIGTERM, lambda signum, stack_frame: exit(1))
+
+		try:
+			while True:
+				for frame in frames:
+					print(home_cursor)
+					print(reset_sequence)
+					print(frame)
+					time.sleep(min(1/10, img.info['duration']/1000.0))
+		except KeyboardInterrupt:
+			pass
+
+
+# Display an xterm-256color color palette on the terminal, including color ids
+
+reset_sequence = '\033[39;49m'
+
+def _esc(i):
+	return '\033[48;5;'+str(i)+'m'
+
+def colorcube():
+	print(''.join([str(i).ljust(4) for i in range(16)]))
+	print('    '.join([_esc(i) for i in range(16)])+'    ' + reset_sequence)
+
+	for j in range(6):
+		for k in range(6):
+			c = 16+j*6+k*6*6
+			print(''.join([str(c+i).ljust(4) for i in range(6)]))
+			print('    '.join([_esc(c+i) for i in range(6)])+'    ' + reset_sequence)
+
+	print(''.join([str(i).ljust(4) for i in range(16+6*6*6, 16+6*6*6+24)]))
+	print('    '.join([_esc(i) for i in range(16+6*6*6, 16+6*6*6+24)])+'    ' + reset_sequence)
+
+
+def pngmeta():
+	parser = argparse.ArgumentParser(description='Print PNG metadata')
+	parser.add_argument('image', type=str)
+	args = parser.parse_args()
+	img = Image.open(args.image)
+	for k, v in img.info.items():
+		print('{:15}: {}'.format(k, v))
+
+
+def resolvecolor():
+	import os, sys, argparse, os.path, json, re
+	from pixelterm.xtermcolors import closest_color
+
+	# Resolve HTML-style hex RGB color codes to xterm-256color color numbers
+
+	if len(sys.argv) != 2:
+		print('Usage: resolvecolor.py #RRGGBB')
+		exit()
+
+	print(closest_color(*[int(s, 16) for s in re.match('#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})', sys.argv[1]).groups()]))
+