diff options
Diffstat (limited to 'lib/elements/element.py')
| -rw-r--r-- | lib/elements/element.py | 54 |
1 files changed, 42 insertions, 12 deletions
diff --git a/lib/elements/element.py b/lib/elements/element.py index 692d8228..5df40475 100644 --- a/lib/elements/element.py +++ b/lib/elements/element.py @@ -2,15 +2,19 @@ # # Copyright (c) 2010 Authors # Licensed under the GNU GPL version 3.0 or later. See the file LICENSE for details. - +import atexit +import os import sys from copy import deepcopy import numpy as np +import appdirs +import diskcache import inkex from inkex import bezier from ..commands import find_commands +from ..debug import debug from ..i18n import _ from ..patterns import apply_patterns from ..svg import (PIXELS_PER_MM, apply_transforms, convert_length, @@ -392,21 +396,47 @@ class EmbroideryElement(object): def to_stitch_groups(self, last_patch): raise NotImplementedError("%s must implement to_stitch_groups()" % self.__class__.__name__) - def embroider(self, last_patch): - self.validate() + @classmethod + def _get_stitch_plan_cache(cls): + # one cache, shared by all elements, opened once and closed at program exit + try: + return cls._stitch_plan_cache + except AttributeError: + cache_dir = os.path.join(appdirs.user_config_dir('inkstitch'), 'cache', 'stitch_plan') + cls._stitch_plan_cache = diskcache.Cache(cache_dir, size=1024 * 1024 * 100) + atexit.register(cls._stitch_plan_cache.close) + return cls._stitch_plan_cache + + @debug.time + def _load_cached_stitch_groups(self): + stitch_plan_cache = self._get_stitch_plan_cache() + return stitch_plan_cache.get(self.node.get('id')) + + @debug.time + def _save_cached_stitch_groups(self, stitch_groups): + stitch_plan_cache = self._get_stitch_plan_cache() + stitch_plan_cache[self.node.get('id')] = stitch_groups + + def embroider(self, last_stitch_group): + stitch_groups = self._load_cached_stitch_groups() + + if not stitch_groups: + self.validate() + + stitch_groups = self.to_stitch_groups(last_stitch_group) + apply_patterns(stitch_groups, self.node) - patches = self.to_stitch_groups(last_patch) - apply_patterns(patches, self.node) + for stitch_group in stitch_groups: + stitch_group.tie_modus = self.ties + stitch_group.force_lock_stitches = self.force_lock_stitches - for patch in patches: - patch.tie_modus = self.ties - patch.force_lock_stitches = self.force_lock_stitches + if stitch_groups: + stitch_groups[-1].trim_after = self.has_command("trim") or self.trim_after + stitch_groups[-1].stop_after = self.has_command("stop") or self.stop_after - if patches: - patches[-1].trim_after = self.has_command("trim") or self.trim_after - patches[-1].stop_after = self.has_command("stop") or self.stop_after + self._save_cached_stitch_groups(stitch_groups) - return patches + return stitch_groups def fatal(self, message, point_to_troubleshoot=False): label = self.node.get(INKSCAPE_LABEL) |