Another fixed bug introduced to clear_poly() in previous commit. Added process widget.

FlatCAMProcess.py

@@ -0,0 +1,73 @@
+from FlatCAMGUI import FlatCAMActivityView
+
+class FCProcess(object):
+
+    def __init__(self, descr):
+        self.callbacks = {
+            "done": []
+        }
+        self.descr = descr
+
+    def done(self):
+        for fcn in self.callbacks["done"]:
+            fcn(self)
+
+    def connect(self, callback, event="done"):
+        if callback not in self.callbacks[event]:
+            self.callbacks[event].append(callback)
+
+    def disconnect(self, callback, event="done"):
+        try:
+            self.callbacks[event].remove(callback)
+        except ValueError:
+            pass
+
+    def status_msg(self):
+        return self.descr
+
+
+class FCProcessContainer(object):
+
+    def __init__(self):
+
+        self.procs = []
+
+    def add(self, proc):
+
+        self.procs.append(proc)
+
+    def new(self, descr):
+        proc = FCProcess(descr)
+        proc.connect(self.on_done, event="done")
+
+    def on_done(self, proc):
+        pass
+
+    def remove(self, proc):
+
+        if proc in self.procs:
+            self.procs.remove(proc)
+
+
+class FCVisibleProcessContainer(FCProcessContainer):
+
+    def __init__(self, view):
+        assert isinstance(view, FlatCAMActivityView)
+
+        super(FCVisibleProcessContainer, self).__init__()
+
+        self.view = view
+
+    def on_done(self, proc):
+        super(FCVisibleProcessContainer, self).on_done(proc)
+
+        self.update_view()
+
+    def update_view(self):
+
+        if len(self.procs) == 0:
+            self.view.set_idle()
+        elif len(self.procs) == 1:
+            self.view.set_busy(self.procs[0].status_msg())
+        else:
+            self.view.set_busy("%d processes running." % len(self.procs))