/usr/lib/python3/dist-packages/ginga/rv/plugins/Command.py is in python3-ginga 2.6.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 | #
# Command.py -- Command plugin for Ginga
#
# This is open-source software licensed under a BSD license.
# Please see the file LICENSE.txt for details.
#
import time
import os
import glob
from ginga.gw import Widgets
from ginga import GingaPlugin, AstroImage
from ginga.misc import Bunch
from ginga.util import grc
class Command(GingaPlugin.GlobalPlugin):
"""
Usage:
This plugin provides a command line interface to the reference viewer.
Useful commands:
g> help
g> reload_local <local_plugin_name>
g> reload_global <global_plugin_name>
"""
def __init__(self, fv):
# superclass defines some variables for us, like logger
super(Command, self).__init__(fv)
self.cmd_w = None
self.hist_w = None
self.histlimit = 5000
self._cmdobj = CommandInterpreter(fv, self)
def build_gui(self, container):
vbox = Widgets.VBox()
self.msg_font = self.fv.get_font("Courier", 12)
vbox.add_widget(Widgets.Label("Output:"))
tw = Widgets.TextArea(wrap=True, editable=False)
tw.set_font(self.msg_font)
tw.set_limit(self.histlimit)
self.hist_w = tw
## sw = Widgets.ScrollArea()
## sw.set_widget(self.hist_w)
## vbox.add_widget(sw, stretch=1)
vbox.add_widget(tw, stretch=1)
vbox.add_widget(Widgets.Label("Type command here:"))
self.cmd_w = Widgets.TextEntry()
self.cmd_w.set_font(self.msg_font)
vbox.add_widget(self.cmd_w, stretch=0)
self.cmd_w.add_callback('activated', self.exec_cmd_cb)
btns = Widgets.HBox()
btns.set_spacing(4)
btns.set_border_width(4)
btn = Widgets.Button("Close")
btn.add_callback('activated', lambda w: self.close())
btns.add_widget(btn)
btns.add_widget(Widgets.Label(''), stretch=1)
vbox.add_widget(btns)
container.add_widget(vbox, stretch=1)
def exec_cmd(self, text):
text = text.strip()
self.log("g> " + text, w_time=True)
if text.startswith('!'):
# escape to shell for this command
self.exec_shell(text[1:])
return
args = text.split()
cmd, tokens = args[0], args[1:]
# process args
args, kwargs = grc.prep_args(tokens)
try:
method = getattr(self._cmdobj, "cmd_" + cmd.lower())
except AttributeError:
self.log("|E| No such command: '%s'" % (cmd))
return
try:
res = method(*args, **kwargs)
if res is not None:
self.log(str(res))
# this brings the focus back to the command bar if the command
# causes a new window to be opened
self.cmd_w.focus()
except Exception as e:
self.log("|E| Error executing '%s': %s" % (text, str(e)))
# TODO: add traceback
def exec_cmd_cb(self, w):
text = w.get_text()
self.exec_cmd(text)
w.set_text("")
def exec_shell(self, cmd_str):
res, out, err = grc.get_exitcode_stdout_stderr(cmd_str)
if len(out) > 0:
self.log(out.decode('utf-8'))
if len(err) > 0:
self.log(err.decode('utf-8'))
if res != 0:
self.log("command terminated with error code %d" % res)
def log(self, text, w_time=False):
if self.hist_w is not None:
pfx = ''
if w_time:
pfx = time.strftime("%H:%M:%S", time.localtime()) + ": "
self.fv.gui_do(self.hist_w.append_text, pfx + text + '\n',
autoscroll=True)
#self.fv.update_pending()
def close(self):
self.fv.stop_global_plugin(str(self))
return True
def __str__(self):
return 'command'
class CommandInterpreter(object):
def __init__(self, fv, plugin):
super(CommandInterpreter, self).__init__()
self.fv = fv
self.plugin = plugin
self.logger = plugin.logger
self.log = plugin.log
def get_viewer(self, chname):
if chname is None:
channel = self.fv.get_channel_info()
else:
channel = self.fv.get_channel_on_demand(chname)
viewer = channel.viewer
return viewer
##### COMMANDS #####
def cmd_help(self, *args):
"""help [cmd]
Get general help, or help for command `cmd`.
"""
if len(args) > 0:
cmdname = args[0].lower()
try:
method = getattr(self, "cmd_" + cmdname)
doc = method.__doc__
if doc is None:
self.log("Sorry, no documentation found for '%s'" % (
cmdname))
else:
self.log("%s: %s" % (cmdname, doc))
except AttributeError:
self.log("No such command '%s'; type help for general help." % (
cmdname))
else:
res = []
for attrname in dir(self):
if attrname.startswith('cmd_'):
method = getattr(self, attrname)
doc = method.__doc__
cmdname = attrname[4:]
if doc is None:
doc = "no documentation"
res.append("%s: %s" % (cmdname, doc))
self.log('\n'.join(res))
def cmd_reload_local(self, plname):
"""reload_local `plname`
Reload the *local* plugin named `plname`. You should close
all instances of the plugin before attempting to reload.
"""
self.fv.mm.loadModule(plname)
for chname in self.fv.get_channel_names():
chinfo = self.fv.get_channel(chname)
chinfo.opmon.reloadPlugin(plname, chinfo=chinfo)
return True
def cmd_reload_global(self, plname):
"""reload_global `plname`
Reload the *global* plugin named `plname`. You should close
all instances of the plugin before attempting to reload.
"""
gpmon = self.fv.gpmon
pInfo = gpmon.getPluginInfo(plname)
gpmon.stop_plugin(pInfo)
self.fv.update_pending(0.5)
self.fv.mm.loadModule(plname)
gpmon.reloadPlugin(plname)
self.fv.start_global_plugin(plname)
return True
def cmd_cd(self, *args):
"""cd [path]
Change the current working directory to `path`.
"""
if len(args) == 0:
path = os.environ['HOME']
else:
path = args[0]
os.chdir(path)
self.cmd_pwd()
def cmd_ls(self, *args):
"""ls [options]
Execute list files command
"""
cmd_str = ' '.join(['ls'] + list(args))
self.plugin.exec_shell(cmd_str)
def cmd_pwd(self):
"""pwd
List the current working directory.
"""
self.log("%s" % (os.getcwd()))
def cmd_load(self, *args, **kwargs):
"""load file ... ch=chname
Read files or URLs into the given channel.
If the item is a path and it does not begin with a slash it is assumed
to be relative to the current working directory. File patterns can
also be provided.
"""
ch = kwargs.get('ch', None)
for item in args:
# TODO: check for URL syntax
files = glob.glob(item)
for path in files:
self.fv.nongui_do(self.fv.load_file, path, chname=ch, wait=True)
def cmd_cuts(self, lo=None, hi=None, ch=None):
"""cuts lo=val hi=val ch=chname
If neither `lo` nor `hi` is provided, returns the current cut levels.
Otherwise sets the corresponding cut level for the given channel.
If `ch` is omitted, assumes the current channel.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
loval, hival = viewer.get_cut_levels()
if (lo is None) and (hi is None):
self.log("lo=%f hi=%f" % (loval, hival))
else:
if lo is not None:
loval = lo
if hi is not None:
hival = hi
viewer.cut_levels(loval, hival)
self.log("lo=%f hi=%f" % (loval, hival))
def cmd_ac(self, ch=None):
"""ac ch=chname
Calculate and set auto cut levels for the given channel.
If `ch` is omitted, assumes the current channel.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
viewer.auto_levels()
self.cmd_cuts(ch=ch)
def cmd_lscm(self):
"""lscm
List the possible color maps that can be loaded.
"""
self.log("\n".join(self.fv.get_color_maps()))
def cmd_cm(self, nm=None, ch=None):
"""cm nm=color_map_name ch=chname
Set a color map (name `nm`) for the given channel.
If no value is given, reports the current color map.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
if nm is None:
rgbmap = viewer.get_rgbmap()
cmap = rgbmap.get_cmap()
self.log(cmap.name)
else:
viewer.set_color_map(nm)
def cmd_cminv(self, ch=None):
"""cminv ch=chname
Invert the color map in the channel/viewer
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
viewer.invert_cmap()
def cmd_dist(self, nm=None, ch=None):
"""dist nm=dist_name ch=chname
Set a color distribution for the given channel.
Possible values are linear, log, power, sqrt, squared, asinh, sinh,
and histeq.
If no value is given, reports the current color distribution
algorithm.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
if nm is None:
rgbmap = viewer.get_rgbmap()
dist = rgbmap.get_dist()
self.log(str(dist))
else:
viewer.set_color_algorithm(nm)
def cmd_lsimap(self):
"""lsimap
List the possible intensity maps that can be loaded.
"""
self.log("\n".join(self.fv.get_intensity_maps()))
def cmd_imap(self, nm=None, ch=None):
"""imap nm=intensity_map_name ch=chname
Set an intensity map (name `nm`) for the given channel.
If no value is given, reports the current intensity map.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
if nm is None:
rgbmap = viewer.get_rgbmap()
imap = rgbmap.get_imap()
self.log(imap.name)
else:
viewer.set_intensity_map(nm)
def cmd_lsch(self):
"""lsch
List the channels, showing the current one.
"""
names = list(self.fv.get_channel_names())
names.sort()
if len(names) == 0:
self.log("No channels")
return
res = []
cur_ch = self.fv.get_channel_info()
for name in names:
if (cur_ch is not None) and (cur_ch.name == name):
res.append("=>%s" % (name))
else:
res.append(" %s" % (name))
self.log("\n".join(res))
def cmd_rot(self, deg=None, ch=None):
"""rot deg=num_deg ch=chname
Rotate the image for the given viewer/channel by the given
number of degrees.
If no value is given, reports the current rotation.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
if deg is None:
self.log("%f deg" % (viewer.get_rotation()))
else:
viewer.rotate(deg)
def cmd_tr(self, x=None, y=None, xy=None, ch=None):
"""tr x=0|1 y=0|1 xy=0|1 ch=chname
Transform the image for the given viewer/channel by flipping
(x=1 and/or y=1) or swapping axes (xy=1).
If no value is given, reports the current rotation.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
fx, fy, sxy = viewer.get_transforms()
if x is None and y is None and xy is None:
self.log("x=%s y=%s xy=%s" % (fx, fy, sxy))
else:
# turn these into True or False
if x is None:
x = fx
else:
x = (x != 0)
if y is None:
y = fy
else:
y = (y != 0)
if xy is None:
xy = sxy
else:
xy = (xy != 0)
viewer.transform(x, y, xy)
def cmd_scale(self, x=None, y=None, ch=None):
"""scale x=scale_x y=scale_y ch=chname
Scale the image for the given viewer/channel by the given amounts.
If only one scale value is given, the other is assumed to be the
same. If no value is given, reports the current scale.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
scale_x, scale_y = viewer.get_scale_xy()
if x is None and y is None:
self.log("x=%f y=%f" % (scale_x, scale_y))
else:
if x is not None:
if y is None: y = x
if y is not None:
if x is None: x = y
viewer.scale_to(x, y)
def cmd_z(self, lvl=None, ch=None):
"""z lvl=level ch=chname
Zoom the image for the given viewer/channel to the given zoom
level. Levels can be positive or negative numbers and are
relative to a scale of 1:1 at zoom level 0.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
cur_lvl = viewer.get_zoom()
if lvl is None:
self.log("zoom=%f" % (cur_lvl))
else:
viewer.zoom_to(lvl)
def cmd_zf(self, ch=None):
"""zf ch=chname
Zoom the image for the given viewer/channel to fit the window.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
viewer.zoom_fit()
cur_lvl = viewer.get_zoom()
self.log("zoom=%f" % (cur_lvl))
def cmd_c(self, ch=None):
"""c ch=chname
Center the image for the given viewer/channel.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
viewer.center_image()
def cmd_pan(self, x=None, y=None, ch=None):
"""scale ch=chname x=pan_x y=pan_y
Set the pan position for the given viewer/channel to the given
pixel coordinates.
If no coordinates are given, reports the current position.
"""
viewer = self.get_viewer(ch)
if viewer is None:
self.log("No current viewer/channel.")
return
pan_x, pan_y = viewer.get_pan()
if x is None and y is None:
self.log("x=%f y=%f" % (pan_x, pan_y))
else:
if x is not None:
if y is None:
y = pan_y
if y is not None:
if x is None:
x = pan_x
viewer.set_pan(x, y)
#END
|