allow selection of a different thread palette

embroider_print.py

@@ -99,6 +99,7 @@ class PrintPreviewServer(Thread):
     def __init__(self, *args, **kwargs):
         self.html = kwargs.pop('html')
         self.metadata = kwargs.pop('metadata')
+        self.stitch_plan = kwargs.pop('stitch_plan')
         Thread.__init__(self, *args, **kwargs)
         self.daemon = True
         self.last_request_time = None
@@ -178,6 +179,35 @@ class PrintPreviewServer(Thread):
             save_defaults(request.json['value'])
             return "OK"
 
+        @self.app.route('/palette', methods=['POST'])
+        def set_palette():
+            name = request.json['name']
+            catalog = ThreadCatalog()
+            palette = catalog.get_palette_by_name(name)
+            catalog.apply_palette(self.stitch_plan, palette)
+
+            # clear any saved color or thread names
+            for field in self.metadata:
+                if field.startswith('color-') or field.startswith('thread-'):
+                    del self.metadata[field]
+
+            self.metadata['thread-palette'] = name
+
+            return "OK"
+
+        @self.app.route('/threads', methods=['GET'])
+        def get_threads():
+            threads = []
+            for color_block in self.stitch_plan:
+                threads.append({
+                                'hex': color_block.color.hex_digits,
+                                'name': color_block.color.name,
+                                'manufacturer': color_block.color.manufacturer,
+                                'number': color_block.color.number,
+                             })
+
+            return jsonify(threads)
+
     def stop(self):
         # for whatever reason, shutting down only seems possible in
         # the context of a flask request, so we'll just make one
@@ -291,7 +321,7 @@ class Print(InkstitchExtension):
 
         patches = self.elements_to_patches(self.elements)
         stitch_plan = patches_to_stitch_plan(patches)
-        palette = ThreadCatalog().match_and_apply_palette(stitch_plan)
+        palette = ThreadCatalog().match_and_apply_palette(stitch_plan, self.get_inkstitch_metadata()['thread-palette'])
         render_stitch_plan(self.document.getroot(), stitch_plan)
 
         self.strip_namespaces()
@@ -354,7 +384,7 @@ class Print(InkstitchExtension):
         # metadata into it.
         self.document = deepcopy(self.original_document)
 
-        print_server = PrintPreviewServer(html=html, metadata=self.get_inkstitch_metadata())
+        print_server = PrintPreviewServer(html=html, metadata=self.get_inkstitch_metadata(), stitch_plan=stitch_plan)
         print_server.start()
 
         time.sleep(1)

inkstitch/extensions.py

@@ -75,11 +75,11 @@ class InkStitchMetadata(MutableMapping):
 
         try:
             return json.loads(item.text)
-        except ValueError:
+        except (ValueError, TypeError):
             return None
 
     def __delitem__(self, name):
-        item = self[name]
+        item = self._find_item(name)
 
         if item:
             self.metadata.remove(item)

inkstitch/threads/catalog.py

@@ -38,8 +38,11 @@ class _ThreadCatalog(Sequence):
 
         return sum(1 for thread in threads if thread in palette)
 
-    def match_and_apply_palette(self, stitch_plan):
-        palette = self.match_palette(stitch_plan)
+    def match_and_apply_palette(self, stitch_plan, palette=None):
+        if palette is None:
+            palette = self.match_palette(stitch_plan)
+        else:
+            palette = self.get_palette_by_name(palette)
 
         if palette is not None:
             self.apply_palette(stitch_plan, palette)
@@ -75,6 +78,10 @@ class _ThreadCatalog(Sequence):
             color_block.color.number = nearest.number
             color_block.color.manufacturer = nearest.manufacturer
 
+    def get_palette_by_name(self, name):
+        for palette in self:
+            if palette.name == name:
+                return palette
 
 _catalog = None
 

print/resources/inkstitch.js

@@ -178,11 +178,11 @@ $(function() {
         $('[data-field-name="' + field_name + '"]').each(function(i, item) {
             var item = $(item);
             if (item.is(':checkbox')) {
-                item.prop('checked', value).trigger('change');
+                item.prop('checked', value).trigger('initialize');
             } else if (item.is('img')) {
                 item.attr('src', value);
             } else if (item.is('select')) {
-                item.val(value).trigger('change');
+                item.val(value).trigger('initialize');
             } else if (item.is('figure.inksimulation')) {
                 setSVGTransform(item, value);
             } else {
@@ -249,10 +249,10 @@ $(function() {
   /* Settings */
 
   // Paper Size
-  $('select#printing-size').change(function(){
-    var size = $(this).find(':selected').val();
-    $('.page').toggleClass('a4', size == 'a4');
-    $.postJSON('/settings/paper-size', {value: size});
+  $('select#printing-size').on('change initialize', function(){
+    $('.page').toggleClass('a4', $(this).find(':selected').val() == 'a4');
+  }).on('change', function() {
+    $.postJSON('/settings/paper-size', {value: $(this).find(':selected').val()});
   });
 
   // Thread Palette
@@ -260,13 +260,26 @@ $(function() {
     $('.modal').show();
   }).on('update', function() {
     $(this).data('current-value', $(this).find(':selected').val());
-    console.log("selected: " + $(this).data('current-value'));
   }).trigger('update');
 
   $('#modal-yes').on('click', function(){
-    // do shit with the newly-selected palette...
     $("select#thread-palette").trigger("update");
     $('.modal').hide();
+    var body = {'name': $('select#thread-palette').find(':selected').val()};
+    $.postJSON('/palette', body, function() {
+      $.getJSON('/threads', function(threads) {
+        console.log("threads: " + JSON.stringify(threads));
+        $.each(threads, function(i, thread) {
+          console.log("doing: " + JSON.stringify(thread));
+          $('[data-field-name="color-' + thread.hex + '"]').text(thread.name);
+          var thread_description = thread.manufacturer;
+          if (thread.number) {
+            thread_description += " #" + thread.number;
+          }
+          $('[data-field-name="thread-' + thread.hex + '"]').text(thread_description);
+        });
+      });
+    });
   });
 
   $('#modal-no').on('click', function(){
@@ -276,14 +289,13 @@ $(function() {
   });
 
   //Checkbox
-  $(':checkbox').change(function() {
-    var checked = $(this).prop('checked');
+  $(':checkbox').on('change initialize', function() {
     var field_name = $(this).attr('data-field-name');
 
-    $('.' + field_name).toggle(checked);
+    $('.' + field_name).toggle($(this).prop('checked'));
     setPageNumbers();
-
-    $.postJSON('/settings/' + field_name, {value: checked});
+  }).on('change', function() {
+    $.postJSON('/settings/' + field_name, {value: $(this).prop('checked')});
   });
 
   // Logo