Refasctoring brush 'events' to be under data and named as such, moved cbindings to libs

src/data/events/brushes/arrow.py

@@ -0,0 +1,44 @@
+# Python imports
+
+# Lib imports
+import cairo
+
+# Application imports
+from data.point import Point
+from data.points import Points
+
+from . import BrushEvent
+
+
+class Arrow(BrushEvent):
+    def __init__(self):
+        super(Arrow, self).__init__()
+
+        self.points: Points = Points()
+
+    def __copy__(self):
+        copy       = type(self)()
+        copy.color = self.color
+
+        return copy
+
+
+    def update(self, eve = None):
+        if len(self.points) < 2:
+            self.points.append( Point(eve.x, eve.y) )
+            return
+
+        self.points[1] = Point(eve.x, eve.y)
+        self.is_valid = True
+
+
+    def process(self, brush: cairo.Context):
+
+        brush.set_line_width(self.size)
+        brush.set_line_cap(1) # 0 = BUTT, 1 = ROUND, 2 = SQUARE
+        brush.set_source_rgba(*self.color)
+        brush.set_operator(cairo.OPERATOR_OVER);
+
+        brush.move_to(self.points[0].x, self.points[0].y)
+        brush.line_to(self.points[1].x, self.points[1].y)
+        brush.stroke()