import threadlist (#666)

1 files changed, 102 insertions, 0 deletions

diff --git a/lib/extensions/import_threadlist.py b/lib/extensions/import_threadlist.py
new file mode 100644
index 00000000..d31c0d69
--- /dev/null
+++ b/lib/extensions/import_threadlist.py
@@ -0,0 +1,102 @@
+import os
+import re
+import sys
+
+import inkex
+
+from ..i18n import _
+from ..threads import ThreadCatalog
+from .base import InkstitchExtension
+
+
+class ImportThreadlist(InkstitchExtension):
+    def __init__(self, *args, **kwargs):
+        InkstitchExtension.__init__(self, *args, **kwargs)
+        self.OptionParser.add_option("-f", "--filepath", type="str", default="", dest="filepath")
+        self.OptionParser.add_option("-m", "--method", type="int", default=1, dest="method")
+        self.OptionParser.add_option("-t", "--palette", type="str", default=None, dest="palette")
+
+    def effect(self):
+        # Remove selection, we want all the elements in the document
+        self.selected = {}
+
+        if not self.get_elements():
+            return
+
+        path = self.options.filepath
+        if not os.path.exists(path):
+            print >> sys.stderr, _("File not found.")
+            sys.exit(1)
+
+        method = self.options.method
+        if method == 1:
+            colors = self.parse_inkstitch_threadlist(path)
+        else:
+            colors = self.parse_threadlist_by_catalog_number(path)
+
+        if all(c is None for c in colors):
+            print >>sys.stderr, _("Couldn't find any matching colors in the file.")
+            if method == 1:
+                print >>sys.stderr, _('Please try to import as "other threadlist" and specify a color palette below.')
+            else:
+                print >>sys.stderr, _("Please chose an other color palette for your design.")
+            sys.exit(1)
+
+        # Iterate through the color blocks to apply colors
+        element_color = ""
+        i = -1
+        for element in self.elements:
+            if element.color != element_color:
+                element_color = element.color
+                i += 1
+
+            # No more colors in the list, stop here
+            if i == len(colors):
+                break
+
+            style = element.node.get('style').replace("%s" % element_color, "%s" % colors[i])
+            element.node.set('style', style)
+
+    def parse_inkstitch_threadlist(self, path):
+        colors = []
+        with open(path) as threadlist:
+            for line in threadlist:
+                if line[0].isdigit():
+                    m = re.search(r"\((#[0-9A-Fa-f]{6})\)", line)
+                    if m:
+                        colors.append(m.group(1))
+                    else:
+                        # Color not found
+                        colors.append(None)
+        return colors
+
+    def parse_threadlist_by_catalog_number(self, path):
+        palette_name = self.options.palette
+        palette = ThreadCatalog().get_palette_by_name(palette_name)
+
+        colors = []
+        palette_numbers = []
+        palette_colors = []
+
+        for color in palette:
+            palette_numbers.append(color.number)
+            palette_colors.append('#%s' % color.hex_digits.lower())
+        with open(path) as threadlist:
+            for line in threadlist:
+                if line[0].isdigit():
+                    # some threadlists may add a # in front of the catalof number
+                    # let's remove it from the entire string before splitting it up
+                    thread = line.replace('#', '').split()
+                    catalog_number = set(thread[1:]).intersection(palette_numbers)
+                    if catalog_number:
+                        color_index = palette_numbers.index(next(iter(catalog_number)))
+                        colors.append(palette_colors[color_index])
+                    else:
+                        # No color found
+                        colors.append(None)
+        return colors
+
+    def find_elements(self, xpath):
+        svg = self.document.getroot()
+        elements = svg.xpath(xpath, namespaces=inkex.NSS)
+        return elements