template nodeset

pgfw/Configuration.py

@@ -143,6 +143,8 @@ class Configuration(RawConfigParser):
         set_option(section, "prompt-border-width", "3", False)
         set_option(section, "prompt-character-limit", "21", False)
         set_option(section, "prompt-text-size", "42", False)
+        set_option(section, "template-nodeset", "L 0 0, 1000 1", False)
+        set_option(section, "template-nodeset-name", "template", False)
 
     def add_section(self, name):
         if name not in self.order:

pgfw/Interpolator.py

@@ -224,6 +224,8 @@ class GUI(Animation):
         self.marker_size = config["marker-size"]
         self.marker_color = config["marker-color"]
         self.label_precision = config["label-precision"]
+        self.template_nodeset = config["template-nodeset"]
+        self.template_nodeset_name = config["template-nodeset-name"]
 
     def set_temporary_file(self):
         self.temporary_file = open(join(gettempdir(), "pgfw-config"), "w")
@@ -286,6 +288,13 @@ class GUI(Animation):
         rect.bottomright = self.display_surface.get_rect().bottomright
         self.nodeset_label, self.nodeset_label_rect = surface, rect
 
+    def get_nodeset(self):
+        if not len(self.parent):
+            self.parent.add_nodeset(self.template_nodeset_name,
+                                    self.template_nodeset)
+            self.set_nodeset_index(0)
+        return self.parent[self.nodeset_index]
+
     def set_yrange(self):
         width = self.plot_rect.w
         nodeset = self.get_nodeset()
@@ -323,9 +332,6 @@ class GUI(Animation):
                 ysr.top = rect.top
             labels.append(((xs, xsr), (ys, ysr)))
 
-    def get_nodeset(self):
-        return self.parent[self.nodeset_index]
-
     def get_formatted_measure(self, measure):
         return "%s" % float(("%." + str(self.label_precision) + "g") % measure)
 
@@ -453,6 +459,8 @@ class GUI(Animation):
                     code += ","
                 code += " {0} {1}".format(*map(self.get_formatted_measure,
                                                node))
+            if not config.has_section("interpolate"):
+                config.add_section("interpolate")
             config.set("interpolate", nodeset.name, code)
 
     def add_nodeset(self, name):