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"""
Basic demo of drawing within an Enable component.
"""
from enable.api import Component, ComponentEditor
from traits.api import HasTraits, Instance
from traitsui.api import Item, View
class MyComponent(Component):
def draw(self, gc, **kwargs):
w,h = gc.width(), gc.height()
gc.clear()
# Draw a rounded rect just inside the bounds
gc.set_line_width(2.0)
gc.set_stroke_color((0.0, 0.0, 0.0, 1.0))
r = 15
b = 3
gc.move_to(b, h/2)
gc.arc_to(b, h-b,
w/2, h-b,
r)
gc.arc_to(w-b, h-b,
w-b, h/2,
r)
gc.arc_to(w-b, b,
w/2, b,
r)
gc.arc_to(b, b,
b, h/2,
r)
gc.line_to(b, h/2)
gc.stroke_path()
return
def normal_key_pressed(self, event):
print "key pressed: ", event.character
class Demo(HasTraits):
canvas = Instance(Component)
traits_view = View(Item('canvas', editor=ComponentEditor(),
show_label=False, width=200, height=200),
resizable=True, title="Component Example")
def _canvas_default(self):
return MyComponent()
if __name__ == "__main__":
Demo().configure_traits()
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