add start markers, add troubleshoot pattern warning and fix wxpython language issue

1 files changed, 42 insertions, 2 deletions

diff --git a/lib/extensions/apply_satin_pattern.py b/lib/extensions/apply_satin_pattern.py
index 9da81075..47eb4d83 100644
--- a/lib/extensions/apply_satin_pattern.py
+++ b/lib/extensions/apply_satin_pattern.py
@@ -4,11 +4,12 @@
 # Licensed under the GNU GPL version 3.0 or later.  See the file LICENSE for details.
 
 import inkex
+from lxml import etree
 
+from ..elements import SatinColumn
 from ..i18n import _
-from ..svg.tags import INKSTITCH_ATTRIBS
+from ..svg.tags import INKSTITCH_ATTRIBS, SVG_DEFS_TAG
 from .base import InkstitchExtension
-from ..elements import SatinColumn
 
 
 class ApplySatinPattern(InkstitchExtension):
@@ -31,9 +32,48 @@ class ApplySatinPattern(InkstitchExtension):
 
         for pattern in patterns:
             pattern.node.set(INKSTITCH_ATTRIBS['pattern'], satin_id)
+            self.set_marker(pattern.node)
 
     def get_satin_column(self):
         return list(filter(lambda satin: isinstance(satin, SatinColumn), self.elements))[0]
 
     def get_patterns(self):
         return list(filter(lambda satin: not isinstance(satin, SatinColumn), self.elements))
+
+    def set_marker(self, node):
+        document = node.getroottree().getroot()
+        xpath = ".//marker[@id='inkstitch-pattern-marker']"
+        pattern_marker = document.xpath(xpath)
+        if not pattern_marker:
+            # get or create def element
+            defs = document.find(SVG_DEFS_TAG)
+            if defs is None:
+                defs = etree.SubElement(document, SVG_DEFS_TAG)
+
+            # insert marker
+            marker = """<marker
+                     refX="5"
+                     refY="2.5"
+                     orient="auto"
+                     id="inkstitch-pattern-marker">
+                    <g
+                       id="inkstitch-pattern-group">
+                      <path
+                         style="fill:#fafafa;stroke:#ffbe00;stroke-width:0.3;stroke-linecap:round;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:1, 0.5;stroke-dashoffset:0;stroke-opacity:1"
+                         d="m 5.05952,2.58154 c 0,1.35905 -1.10173,2.4608 -2.46079,2.4608 -1.35905,0 -2.46079,-1.10175 -2.46079,-2.4608 0,-0.65262 0.259271,-1.27856 0.720751,-1.74004 C 1.32018,0.38002 1.94609,0.120749 2.59873,0.120749 c 1.35906,0 2.46079,1.101751 2.46079,2.460791 z"
+                         id="inkstitch-pattern-marker-circle" />
+                      <path
+                         style="fill:none;stroke:#000000;stroke-width:0.1;stroke-linecap:round;stroke-miterlimit:4;"
+                         id="inkstitch-pattern-marker-spiral"
+                         d="M 2.45807,2.80588 C 2.35923,2.84009 2.28168,2.72985 2.27863,2.64621 2.27369,2.48274 2.43336,2.37629 2.58086,2.3877 2.8006,2.40291 2.94012,2.6234 2.91389,2.83249 2.87853,3.11001 2.59683,3.28488 2.3292,3.24307 1.99161,3.18604 1.78366,2.84389 1.84297,2.51695 1.9152,2.11778 2.32311,1.87448 2.70974,1.95431 3.16593,2.04175 3.44307,2.51315 3.34955,2.96175 3.24121,3.47497 2.70594,3.7867 2.2007,3.67645 1.62589,3.551 1.27919,2.95034 1.4073,2.3877 1.551,1.75283 2.21439,1.37266 2.83823,1.51713 3.53165,1.67679 3.94793,2.40671 3.78522,3.0872 3.60616,3.83992 2.81504,4.29232 2.07221,4.11364 1.26018,3.91595 0.773949,3.06059 0.971634,2.25844 1.18605,1.38787 2.10528,0.867047 2.96711,1.07994 3.89775,1.31184 4.45317,2.29646 4.22089,3.21645 4.20112,3.29629 4.17565,3.37612 4.14523,3.45216" />
+                    </g>
+                    </marker>"""  # noqa: E501
+            defs.append(etree.fromstring(marker))
+
+        # attach marker to node
+        style = node.get('style', '').split(";")
+        import sys
+        print(style, file=sys.stderr)
+        style = [i for i in style if not i.startswith('marker-start')]
+        style.append('marker-start:url(#inkstitch-pattern-marker)')
+        node.set('style', ";".join(style))