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#!/usr/bin/env python
# vim: sts=4 sw=4 et
# GladeVcp FileChooser related widgets
#
# Copyright (c) 2010 Pavel Shramov <shramov@mexmat.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
import os, sys, time, select, re
import tempfile, atexit, shutil
import gtk, gobject
from hal_widgets import _HalWidgetBase
import linuxcnc
from hal_glib import GStat
_ = lambda x: x
from hal_actions import _EMC_ActionBase, _EMC_Action
progress_re = re.compile("^FILTER_PROGRESS=(\\d*)$")
class FilterProgram:
def __init__(self, program_filter, infilename, outfilename, callback=None):
import subprocess
outfile = open(outfilename, "w")
infilename_q = infilename.replace("'", "'\\''")
env = dict(os.environ)
env['AXIS_PROGRESS_BAR'] = '1'
p = subprocess.Popen(["sh", "-c", "%s '%s'" % (program_filter, infilename_q)],
stdin=subprocess.PIPE,
stdout=outfile,
stderr=subprocess.PIPE,
env=env)
p.stdin.close() # No input for you
self.p = p
self.stderr_text = []
self.program_filter = program_filter
self.callback = callback
gobject.timeout_add(100, self.update)
#progress = Progress(1, 100)
#progress.set_text(_("Filtering..."))
def update(self):
if self.p.poll() is not None:
self.finish()
return False
r,w,x = select.select([self.p.stderr], [], [], 0)
if not r:
return True
stderr_line = self.p.stderr.readline()
m = progress_re.match(stderr_line)
if m:
pass #progress.update(int(m.group(1)), 1)
else:
self.stderr_text.append(stderr_line)
sys.stderr.write(stderr_line)
return True
def finish(self):
# .. might be something left on stderr
for line in self.p.stderr:
m = progress_re.match(line)
if not m:
self.stderr_text.append(line)
sys.stderr.write(line)
r = self.p.returncode
if r:
self.error(r, "".join(self.stderr_text))
if self.callback:
self.callback(r)
def error(self, exitcode, stderr):
dialog = gtk.MessageDialog(None, 0, gtk.MESSAGE_ERROR, gtk.BUTTONS_CLOSE,
_("The program %(program)r exited with code %(code)d. "
"Any error messages it produced are shown below:")
% {'program': self.program_filter, 'code': exitcode})
dialog.format_secondary_text(stderr)
dialog.run()
dialog.destroy()
class _EMC_FileChooser(_EMC_ActionBase):
def _hal_init(self):
_EMC_ActionBase._hal_init(self)
self.ini = None
self.tmp = None
self.load_filters()
def mktemp(self):
if self.tmp:
return
self.tmp = tempfile.mkdtemp(prefix='emcflt-', suffix='.d')
atexit.register(lambda: shutil.rmtree(self.tmp))
def load_file(self, filename):
flt = self.get_filter_program(filename)
if not flt:
return self._load_file(filename)
if not self.tmp:
self.mktemp()
tmp = os.path.join(self.tmp, os.path.basename(filename))
flt = FilterProgram(flt, filename, tmp, lambda r: r or self._load_file(tmp))
def _load_file(self, filename):
if filename:
self.linuxcnc.mode(linuxcnc.MODE_AUTO)
old = self.gstat.stat.file
self.linuxcnc.program_open(filename)
if old == filename:
self.gstat.emit('file-loaded', filename)
def load_filters(self, inifile=None):
inifile = inifile or os.environ.get('INI_FILE_NAME', '/dev/null')
self.ini = linuxcnc.ini(inifile)
self._load_filters(self.ini)
def get_filter_program(self, filename):
ext = os.path.splitext(filename)[1]
if ext:
return self.ini.find("FILTER", ext[1:])
else:
return None
def _load_filters(self, inifile):
def _e2p(n, el):
#print "New filter %s: %s" % (n, el)
p = gtk.FileFilter()
p.set_name(n)
map(lambda s: p.add_pattern('*' + s), el)
#print p
return p
all_extensions = [".ngc"]
extensions = inifile.findall("FILTER", "PROGRAM_EXTENSION")
extensions = [e.split(None, 1) for e in extensions]
extensions = tuple([(v, tuple(k.split(","))) for k, v in extensions])
map(lambda t: all_extensions.extend(t[1]), extensions)
self.add_filter(_e2p("All machinable files", all_extensions))
self.add_filter(_e2p("rs274ngc files", ['.ngc']))
for n,e in extensions:
self.add_filter(_e2p(n, e))
self.add_filter(_e2p("All files", ['']))
class EMC_FileChooserDialog(gtk.FileChooserDialog, _EMC_FileChooser):
__gtype_name__ = 'EMC_FileChooserDialog'
def __init__(self, *a, **kw):
gtk.FileChooserDialog.__init__(self, *a, **kw)
_EMC_FileChooser._hal_init(self)
self.connect('response', self.on_response)
def on_response(self, w, response):
pass
#print ">>>", w, response
class EMC_FileChooserButton(gtk.FileChooserButton, _EMC_FileChooser):
__gtype_name__ = 'EMC_FileChooserButton'
def __init__(self, *a, **kw):
gtk.FileChooserButton.__init__(self, gtk.FileChooserDialog())
self.connect('file-set', self.on_file_set)
def on_file_set(self, w):
self.load_file(w.get_filename())
class EMC_Action_Open(_EMC_Action, _EMC_FileChooser):
__gtype_name__ = 'EMC_Action_Open'
fixed_file = gobject.property(type=str, default='', nick='Fixed file name')
def _hal_init(self):
_EMC_FileChooser._hal_init(self)
_EMC_Action._hal_init(self)
self.currentfolder = os.path.expanduser("~/linuxcnc/nc_files")
self.gstat.connect('interp-run', lambda w: self.set_sensitive(False))
self.gstat.connect('interp-idle', lambda w: self.set_sensitive(True))
def _load_filters(self, ini): pass
def on_activate(self, w):
if self.fixed_file:
self.load_file(self.fixed_file)
return
dialog = EMC_FileChooserDialog(title="Open File",action=gtk.FILE_CHOOSER_ACTION_OPEN,
buttons=(gtk.STOCK_CANCEL,gtk.RESPONSE_CANCEL,gtk.STOCK_OPEN,gtk.RESPONSE_OK))
dialog.set_current_folder(self.currentfolder)
dialog.show()
r = dialog.run()
fn = dialog.get_filename()
dialog.hide()
if r == gtk.RESPONSE_OK:
dialog.load_file(fn)
self.currentfolder = os.path.dirname(fn)
dialog.destroy()
class EMC_Action_Reload(_EMC_Action, _EMC_FileChooser):
__gtype_name__ = 'EMC_Action_Reload'
def _hal_init(self):
_EMC_Action._hal_init(self)
def on_activate(self, w):
self._load_file(self.gstat.stat.file)
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