Add basic components support

pulsar/components/marking_lines.py

@@ -0,0 +1,21 @@
+import vgl
+
+
+name = "Marking Lines"
+
+def main(window):
+    frame = vgl.Frame().attach(window_object=window, poscale=(0,0), clone_name="Marking Line")
+    lines = list()
+    for i in range(0, 24):
+        lines.append(vgl.elements.Line(ends=[(0, i/24), (1, i/24)], color="green").attach(frame_object=frame))
+    for i in range(0, 32):
+        lines.append(vgl.elements.Line(ends=[(i/32, 0), (i/32, 1)], color="green").attach(frame_object=frame))
+    # We monitor events like this.
+    @window.observerize
+    def observer(info):
+        if info["delta"] == "key":
+            print(info)
+        # We make changes like this.
+        for i in lines:
+            i.set_color('#' + str((info['cursor']['position'][0] + info['cursor']['position'][1]*100 + info['cursor']['position'][0]*10000) % 999999).zfill(6))
+    observer()