kopia lustrzana https://github.com/inkstitch/inkstitch
322 wiersze
11 KiB
Python
322 wiersze
11 KiB
Python
#!/usr/bin/python
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#
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import sys
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import traceback
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import os
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from threading import Thread
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import socket
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import errno
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import time
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import logging
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import wx
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import inkex
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import inkstitch
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from inkstitch import _, PIXELS_PER_MM, SVG_GROUP_TAG
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from inkstitch.extensions import InkstitchExtension
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from inkstitch.stitch_plan import patches_to_stitch_plan
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from inkstitch.svg import render_stitch_plan
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from inkstitch.utils import save_stderr, restore_stderr
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from jinja2 import Environment, FileSystemLoader, select_autoescape
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from datetime import date
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import base64
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from flask import Flask, request, Response, send_from_directory
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import webbrowser
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import requests
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def datetimeformat(value, format='%Y/%m/%d'):
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return value.strftime(format)
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def open_url(url):
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# Avoid spurious output from xdg-open. Any output on stdout will crash
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# inkscape.
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null = open(os.devnull, 'w')
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old_stdout = os.dup(sys.stdout.fileno())
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os.dup2(null.fileno(), sys.stdout.fileno())
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if getattr(sys, 'frozen', False):
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# PyInstaller sets LD_LIBRARY_PATH. We need to temporarily clear it
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# to avoid confusing xdg-open, which webbrowser will run.
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# The following code is adapted from PyInstaller's documentation
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# http://pyinstaller.readthedocs.io/en/stable/runtime-information.html
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old_environ = dict(os.environ) # make a copy of the environment
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lp_key = 'LD_LIBRARY_PATH' # for Linux and *BSD.
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lp_orig = os.environ.get(lp_key + '_ORIG') # pyinstaller >= 20160820 has this
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if lp_orig is not None:
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os.environ[lp_key] = lp_orig # restore the original, unmodified value
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else:
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os.environ.pop(lp_key, None) # last resort: remove the env var
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webbrowser.open(url)
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# restore the old environ
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os.environ.clear()
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os.environ.update(old_environ)
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else:
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webbrowser.open(url)
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# restore file descriptors
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os.dup2(old_stdout, sys.stdout.fileno())
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os.close(old_stdout)
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class PrintPreviewServer(Thread):
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def __init__(self, *args, **kwargs):
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self.html = kwargs.pop('html')
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Thread.__init__(self, *args, **kwargs)
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self.daemon = True
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self.last_request_time = None
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self.shutting_down = False
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self.__setup_app()
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def __set_resources_path(self):
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if getattr(sys, 'frozen', False):
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self.resources_path = os.path.join(sys._MEIPASS, 'print', 'resources')
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else:
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self.resources_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'print', 'resources')
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def __setup_app(self):
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self.__set_resources_path()
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self.app = Flask(__name__)
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@self.app.before_request
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def request_started():
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self.last_request_time = time.time()
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@self.app.before_first_request
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def start_watcher():
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self.watcher_thread = Thread(target=self.watch)
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self.watcher_thread.daemon = True
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self.watcher_thread.start()
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@self.app.route('/')
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def index():
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return self.html
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@self.app.route('/shutdown', methods=['POST'])
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def shutdown():
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self.shutting_down = True
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request.environ.get('werkzeug.server.shutdown')()
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return 'Server shutting down...'
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@self.app.route('/resources/<path:resource>', methods=['GET'])
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def resources(resource):
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return send_from_directory(self.resources_path, resource, cache_timeout=1)
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@self.app.route('/ping')
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def ping():
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# Javascript is letting us know it's still there. This resets self.last_request_time.
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return "pong"
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@self.app.route('/printing/start')
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def printing_start():
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# temporarily turn off the watcher while the print dialog is up,
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# because javascript will be frozen
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self.last_request_time = None
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return "OK"
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@self.app.route('/printing/end')
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def printing_end():
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# nothing to do here -- request_started() will restart the watcher
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return "OK"
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def stop(self):
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# for whatever reason, shutting down only seems possible in
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# the context of a flask request, so we'll just make one
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requests.post("http://%s:%s/shutdown" % (self.host, self.port))
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def watch(self):
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try:
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while True:
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time.sleep(1)
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if self.shutting_down:
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break
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if self.last_request_time is not None and \
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(time.time() - self.last_request_time) > 3:
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self.stop()
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break
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except:
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# seems like sometimes this thread blows up during shutdown
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pass
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def disable_logging(self):
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logging.getLogger('werkzeug').setLevel(logging.ERROR)
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def run(self):
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self.disable_logging()
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self.host = "127.0.0.1"
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self.port = 5000
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while True:
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try:
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self.app.run(self.host, self.port, threaded=True)
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except socket.error, e:
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if e.errno == errno.EADDRINUSE:
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self.port += 1
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continue
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else:
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raise
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else:
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break
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class PrintInfoFrame(wx.Frame):
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def __init__(self, *args, **kwargs):
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self.print_server = kwargs.pop("print_server")
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wx.Frame.__init__(self, *args, **kwargs)
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panel = wx.Panel(self)
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sizer = wx.BoxSizer(wx.VERTICAL)
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text = wx.StaticText(panel, label=_("A print preview has been opened in your web browser. This window will stay open in order to communicate with the JavaScript code running in your browser.\n\nThis window will close after you close the print preview in your browser, or you can close it manually if necessary."))
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font = wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL)
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text.SetFont(font)
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sizer.Add(text, proportion=1, flag=wx.ALL|wx.EXPAND, border=20)
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stop_button = wx.Button(panel, id=wx.ID_CLOSE)
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stop_button.Bind(wx.EVT_BUTTON, self.close_button_clicked)
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sizer.Add(stop_button, proportion=0, flag=wx.ALIGN_CENTER|wx.ALL, border=10)
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panel.SetSizer(sizer)
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panel.Layout()
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self.timer = wx.PyTimer(self.__watcher)
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self.timer.Start(250)
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def close_button_clicked(self, event):
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self.print_server.stop()
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def __watcher(self):
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if not self.print_server.is_alive():
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self.timer.Stop()
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self.timer = None
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self.Destroy()
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class Print(InkstitchExtension):
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def build_environment(self):
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if getattr( sys, 'frozen', False ) :
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template_dir = os.path.join(sys._MEIPASS, "print", "templates")
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else:
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template_dir = os.path.join(os.path.dirname(os.path.realpath(__file__)), "print", "templates")
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env = Environment(
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loader = FileSystemLoader(template_dir),
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autoescape=select_autoescape(['html', 'xml']),
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extensions=['jinja2.ext.i18n']
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)
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env.filters['datetimeformat'] = datetimeformat
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env.install_gettext_translations(inkstitch.translation)
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return env
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def strip_namespaces(self):
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# namespace prefixes seem to trip up HTML, so get rid of them
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for element in self.document.iter():
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if element.tag[0]=='{':
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element.tag = element.tag[element.tag.index('}',1) + 1:]
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def effect(self):
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# It doesn't really make sense to print just a couple of selected
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# objects. It's almost certain they meant to print the whole design.
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# If they really wanted to print just a few objects, they could set
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# the rest invisible temporarily.
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self.selected = {}
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if not self.get_elements():
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return
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self.hide_all_layers()
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patches = self.elements_to_patches(self.elements)
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stitch_plan = patches_to_stitch_plan(patches)
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render_stitch_plan(self.document.getroot(), stitch_plan)
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self.strip_namespaces()
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# Now the stitch plan layer will contain a set of groups, each
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# corresponding to a color block. We'll create a set of SVG files
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# corresponding to each individual color block and a final one
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# for all color blocks together.
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svg = self.document.getroot()
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layers = svg.findall("./g[@{http://www.inkscape.org/namespaces/inkscape}groupmode='layer']")
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stitch_plan_layer = svg.find(".//*[@id='__inkstitch_stitch_plan__']")
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# First, delete all of the other layers. We don't need them and they'll
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# just bulk up the SVG.
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for layer in layers:
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if layer is not stitch_plan_layer:
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svg.remove(layer)
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overview_svg = inkex.etree.tostring(self.document)
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color_block_groups = stitch_plan_layer.getchildren()
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for i, group in enumerate(color_block_groups):
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# clear the stitch plan layer
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del stitch_plan_layer[:]
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# add in just this group
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stitch_plan_layer.append(group)
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# save an SVG preview
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stitch_plan.color_blocks[i].svg_preview = inkex.etree.tostring(self.document)
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env = self.build_environment()
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template = env.get_template('index.html')
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html = template.render(
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view = {'client_overview': False, 'client_detailedview': False, 'operator_overview': True, 'operator_detailedview': True},
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logo = {'src' : '', 'title' : 'LOGO'},
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date = date.today(),
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client = "",
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job = {
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'title': '',
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'num_colors': stitch_plan.num_colors,
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'num_color_blocks': len(stitch_plan),
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'num_stops': stitch_plan.num_stops,
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'num_trims': stitch_plan.num_trims,
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'dimensions': stitch_plan.dimensions_mm,
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'num_stitches': stitch_plan.num_stitches,
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'estimated_time': '', # TODO
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'estimated_thread': '', # TODO
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},
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svg_overview = overview_svg,
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svg_scale = '100%',
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color_blocks = stitch_plan.color_blocks,
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)
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print_server = PrintPreviewServer(html=html)
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print_server.start()
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time.sleep(1)
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open_url("http://%s:%s/" % (print_server.host, print_server.port))
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app = wx.App()
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info_frame = PrintInfoFrame(None, title=_("Ink/Stitch Print"), size=(450, 350), print_server=print_server)
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info_frame.Show()
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app.MainLoop()
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# don't let inkex print the document out
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sys.exit(0)
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if __name__ == '__main__':
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save_stderr()
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effect = Print()
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effect.affect()
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restore_stderr()
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