kopia lustrzana https://github.com/inkstitch/inkstitch
471 wiersze
17 KiB
Python
471 wiersze
17 KiB
Python
# Authors: see git history
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#
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# Copyright (c) 2010 Authors
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# Licensed under the GNU GPL version 3.0 or later. See the file LICENSE for details.
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import json
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import os
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import socket
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import sys
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import time
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import webbrowser
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from contextlib import closing
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from copy import deepcopy
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from datetime import date
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from threading import Thread
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import appdirs
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import wx
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from flask import Flask, Response, jsonify, request, send_from_directory
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from jinja2 import Environment, FileSystemLoader, select_autoescape
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from lxml import etree
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from werkzeug.serving import make_server
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from .base import InkstitchExtension
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from ..debug.debug import debug
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from ..i18n import _, get_languages
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from ..i18n import translation as inkstitch_translation
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from ..stitch_plan import stitch_groups_to_stitch_plan
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from ..svg import render_stitch_plan
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from ..svg.tags import INKSCAPE_GROUPMODE
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from ..threads import ThreadCatalog
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def datetimeformat(value, format='%Y/%m/%d'):
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return value.strftime(format)
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def defaults_path():
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defaults_dir = appdirs.user_config_dir('inkstitch')
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if not os.path.exists(defaults_dir):
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os.makedirs(defaults_dir)
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return os.path.join(defaults_dir, 'print_settings.json')
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def load_defaults():
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try:
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with open(defaults_path(), 'r') as defaults_file:
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defaults = json.load(defaults_file)
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return defaults
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except BaseException:
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return {}
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def save_defaults(defaults):
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with open(defaults_path(), 'w') as defaults_file:
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json.dump(defaults, defaults_file)
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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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self.metadata = kwargs.pop('metadata')
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self.stitch_plan = kwargs.pop('stitch_plan')
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self.realistic_overview_svg = kwargs.pop('realistic_overview_svg')
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self.realistic_color_block_svgs = kwargs.pop('realistic_color_block_svgs')
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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.flask_server = None
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self.server_thread = None
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self.started = 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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if sys.platform == "darwin":
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self.resources_path = os.path.join(sys._MEIPASS, "..", 'Resources', 'print', 'resources')
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else:
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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.realpath(os.path.join(os.path.dirname(__file__), '..', '..', 'print', 'resources'))
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def __setup_app(self): # noqa: C901
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self.__set_resources_path()
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# Disable warning about using a development server in a production environment
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cli = sys.modules['flask.cli']
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cli.show_server_banner = lambda *x: None
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self.app = Flask(__name__)
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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.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.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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return _('Closing...') + '<br/><br/>' + _('It is safe to close this window now.')
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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, max_age=1)
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@self.app.route('/ping')
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def ping():
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debug.log("got a 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('/settings/<field_name>', methods=['POST'])
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def set_field(field_name):
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self.metadata[field_name] = request.json['value']
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return "OK"
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@self.app.route('/settings/<field_mame>', methods=['GET'])
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def get_field(field_name):
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return jsonify(self.metadata[field_name])
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@self.app.route('/settings', methods=['GET'])
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def get_settings():
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settings = {}
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settings.update(load_defaults())
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settings.update(self.metadata)
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return jsonify(settings)
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@self.app.route('/defaults', methods=['POST'])
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def set_defaults():
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save_defaults(request.json['value'])
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return "OK"
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@self.app.route('/palette', methods=['POST'])
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def set_palette():
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name = request.json['name']
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catalog = ThreadCatalog()
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palette = catalog.get_palette_by_name(name)
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catalog.apply_palette(self.stitch_plan, palette)
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# clear any saved color or thread names
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for field in self.metadata:
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if field.startswith('color-') or field.startswith('thread-'):
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del self.metadata[field]
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self.metadata['thread-palette'] = name
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return "OK"
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@self.app.route('/threads', methods=['GET'])
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def get_threads():
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threads = []
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for color_block in self.stitch_plan:
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threads.append({
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'hex': color_block.color.hex_digits,
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'name': color_block.color.name,
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'manufacturer': color_block.color.manufacturer,
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'number': color_block.color.number,
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})
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return jsonify(threads)
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@self.app.route('/realistic/block<int:index>', methods=['GET'])
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def get_realistic_block(index):
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return Response(self.realistic_color_block_svgs[index], mimetype='image/svg+xml')
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@self.app.route('/realistic/overview', methods=['GET'])
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def get_realistic_overview():
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return Response(self.realistic_overview_svg, mimetype='image/svg+xml')
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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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self.flask_server.shutdown()
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self.server_thread.join()
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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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debug.log("watcher thread: shutting down")
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self.stop()
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break
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if self.last_request_time is not None and (time.time() - self.last_request_time) > 3:
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debug.log("watcher thread: timed out, stopping")
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self.stop()
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break
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except BaseException:
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# seems like sometimes this thread blows up during shutdown
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debug.log(f"exception in watcher {sys.exc_info()}")
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pass
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# https://github.com/aluo-x/Learning_Neural_Acoustic_Fields/blob/master/train.py
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# https://github.com/pytorch/pytorch/issues/71029
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def find_free_port(self):
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with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as s:
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s.bind(('localhost', 0))
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return s.getsockname()[1]
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def run(self):
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self.host = "127.0.0.1"
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self.port = self.find_free_port()
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# exporting the port number for languages to work
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os.environ['FLASKPORT'] = str(self.port)
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self.flask_server = make_server(self.host, self.port, self.app)
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self.server_thread = Thread(target=self.flask_server.serve_forever)
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self.server_thread.start()
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self.started = True
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self.server_thread.join()
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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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self.message = _(
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"A print preview has been opened in your web browser. "
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"This window will stay open in order to communicate with the JavaScript code running in your browser.\n\n"
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"This window will close after you close the print preview in your browser, or you can close it manually if necessary."
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)
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self.text = wx.StaticText(panel, label=self.message)
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font = wx.Font(14, wx.DEFAULT, wx.NORMAL, wx.NORMAL)
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self.text.SetFont(font)
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self.Bind(wx.EVT_SIZE, self.resize)
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sizer.Add(self.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 resize(self, event=None):
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self.text.SetLabel(self.message)
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self.text.Wrap(self.GetSize().width - 35)
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self.Layout()
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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 self.print_server.started and 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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if sys.platform == "darwin":
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print_dir = os.path.join(sys._MEIPASS, "..", 'Resources', "print")
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else:
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print_dir = os.path.join(sys._MEIPASS, "print")
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else:
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print_dir = os.path.realpath(os.path.join(os.path.dirname(__file__), "..", "..", "print"))
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template_dir = os.path.join(print_dir, "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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languages_with_style = []
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languages = get_languages()
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for lang in languages:
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css_file = "%s.css" % lang
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if os.path.isfile(os.path.join(print_dir, "resources", css_file)):
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languages_with_style.append(lang)
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env.languages = languages_with_style
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return env
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def strip_namespaces(self, svg):
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# namespace prefixes seem to trip up HTML, so get rid of them
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for element in svg.iter():
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if isinstance(element.tag, str) and element.tag[0] == '{':
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element.tag = element.tag[element.tag.index('}', 1) + 1:]
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def render_svgs(self, stitch_plan, realistic=False):
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svg = deepcopy(self.document).getroot()
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render_stitch_plan(svg, stitch_plan, realistic, visual_commands=False)
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self.strip_namespaces(svg)
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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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layers = svg.findall("./g[@%s='layer']" % INKSCAPE_GROUPMODE)
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stitch_plan_layer = svg.findone(".//*[@id='__inkstitch_stitch_plan__']")
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# Make sure there is no leftover translation from stitch plan preview
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stitch_plan_layer.pop('transform')
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# objects outside of the viewbox are invisible
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# TODO: if we want them to be seen, we need to redefine document size to fit the design
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# this is just a quick fix and doesn't work on realistic view
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svg.set('style', 'overflow:visible;')
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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 = etree.tostring(svg).decode('utf-8')
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color_block_groups = stitch_plan_layer.getchildren()
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color_block_svgs = []
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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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color_block_svgs.append(etree.tostring(svg).decode('utf-8'))
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return overview_svg, color_block_svgs
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def render_html(self, stitch_plan, overview_svg, selected_palette):
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env = self.build_environment()
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template = env.get_template('index.html')
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return template.render(
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view={
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'client_overview': False,
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'client_detailedview': False,
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'operator_overview': True,
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'operator_detailedview': True,
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'full_page_patternview': False,
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'show_footer': False,
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'custom_page': False
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},
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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_thread': stitch_plan.estimated_thread
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},
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svg_overview=overview_svg,
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color_blocks=stitch_plan.color_blocks,
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palettes=ThreadCatalog().palette_names(),
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selected_palette=selected_palette,
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languages=env.languages
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)
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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.svg.selection.clear()
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if not self.get_elements():
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return
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self.metadata = self.get_inkstitch_metadata()
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collapse_len = self.metadata['collapse_len_mm']
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min_stitch_len = self.metadata['min_stitch_len_mm']
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stitch_groups = self.elements_to_stitch_groups(self.elements)
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stitch_plan = stitch_groups_to_stitch_plan(stitch_groups, collapse_len=collapse_len, min_stitch_len=min_stitch_len)
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palette = ThreadCatalog().match_and_apply_palette(stitch_plan, self.get_inkstitch_metadata()['thread-palette'])
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overview_svg, color_block_svgs = self.render_svgs(stitch_plan, realistic=False)
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realistic_overview_svg, realistic_color_block_svgs = self.render_svgs(stitch_plan, realistic=True)
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for i, svg in enumerate(color_block_svgs):
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stitch_plan.color_blocks[i].svg_preview = svg
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html = self.render_html(stitch_plan, overview_svg, palette)
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print_server = PrintPreviewServer(
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html=html,
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metadata=self.get_inkstitch_metadata(),
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stitch_plan=stitch_plan,
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realistic_overview_svg=realistic_overview_svg,
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realistic_color_block_svgs=realistic_color_block_svgs
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)
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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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