def __init__(self, parent, event):
"""
This class uses an initial touch event to track subsequent moves draw a line between them in a div node.
It is mainly used to draw a selection lasso and record a polygon of it. This polygon can later be used to check
for if the lasso contains nodes.
Args:
parent (avg.DivNode): Parent node that should contain the drawn line.
event (Event): Initial event that is used to track touches / mouse moves.
"""
EventDispatcher.__init__(self)
self.__parent = parent
self.__node = avg.PolygonNode(
strokewidth=2,
parent=self.__parent,
color=vs_config.SELECTION_FEEDBACK_COLOR,
fillopacity=0.5,
opacity=0.5,
fillcolor='ccc',
sensitive=False,
pos=[self.__parent.getRelPos((event.x, event.y))])
self.__event = event
self.__touch_id = event.cursorid
self.__event.contact.subscribe(avg.Contact.CURSOR_MOTION,
self.__on_move)
self.__event.contact.subscribe(avg.Contact.CURSOR_UP, self.__on_up)
def testPolygonEvents(self):
def moveNode():
div.pos = (40,40)
canvas = self.makeEmptyCanvas()
div = avg.DivNode(parent=canvas)
polygon = avg.PolygonNode(strokewidth=10, color="FF00FF",
pos=((10,10), (50,10), (90,50), (90, 90)), parent=div)
handlerTester = NodeHandlerTester(self, polygon)
self.start(False,
(lambda: self.fakeClick(20, 50),
lambda: handlerTester.assertState(()),
lambda: self.fakeClick(70, 50),
lambda: handlerTester.assertState(
(avg.Node.CURSOR_DOWN, avg.Node.CURSOR_OVER, avg.Node.CURSOR_UP)),
lambda: self.fakeClick(30, 7),
lambda: handlerTester.assertState(
(avg.Node.CURSOR_DOWN, avg.Node.CURSOR_UP)),
moveNode,
lambda: self.fakeClick(20, 20),
lambda: handlerTester.assertState([avg.Node.CURSOR_OUT]),
lambda: self.fakeClick(50, 50),
lambda: handlerTester.assertState(
(avg.Node.CURSOR_DOWN, avg.Node.CURSOR_OVER, avg.Node.CURSOR_UP)),
))
def addPolygon():
polygon = avg.PolygonNode(strokewidth=2,
color="FF00FF",
pos=((10, 10), (50, 10), (90, 50), (90,
90)))
canvas.appendChild(polygon)
return polygon
def texturePolygon():
polygon = avg.PolygonNode(strokewidth=20,
color="FF00FF",
texhref="rgb24-64x64.png",
pos=((10, 10), (50, 10), (90, 50), (90,
90)))
canvas.appendChild(polygon)
return polygon
def addPolygon():
polygon = avg.PolygonNode(strokewidth=2,
color="FF00FF",
pos=((10, 10), (50, 10), (90, 50), (90,
90)))
polygon.subscribe(avg.Node.CURSOR_DOWN, onMouseDown)
canvas.appendChild(polygon)
return polygon
def createPolygonInInivisbleDiv():
canvas = self.makeEmptyCanvas()
div = avg.DivNode(parent=canvas, opacity=0)
avg.PolygonNode(parent=div,
strokewidth=2, color="FF00FF",
fillopacity=1, fillcolor="00FF00",
pos=((10, 10), (50, 10), (90, 50), (90, 90)))
return div
def createDegenerate():
avg.PolygonNode(pos=((10, 20), (10, 20), (10, 20)), parent=canvas)
avg.PolygonNode(pos=((10, 20), (10, 20), (20, 30)), parent=canvas)
avg.PolygonNode(pos=((20, 30), (10, 20), (10, 20)), parent=canvas)
avg.PolygonNode(pos=((10, 20), (20, 30), (10, 20)), parent=canvas)
avg.PolygonNode(pos=((10, 20), (10, 30), (10, 40)), parent=canvas)
avg.PolygonNode(pos=((20, 10), (30, 10), (40, 10)), parent=canvas)
avg.PolygonNode(pos=((0, 0), (200, 0), (0, 0), (0, 200)),
parent=canvas)
def addEmptyPolygon():
avg.PolygonNode(parent=canvas, fillopacity=1)
def addPolygon2():
polygon = avg.PolygonNode(strokewidth=3, color="FF00FF",
pos=((100.5,10.5), (100.5,30.5), (120.5,30.5), (120.5, 10.5)))
canvas.insertChild(polygon, 0)
def onInit(self):
self.poly = avg.PolygonNode(pos=self.__genPts(),
fillopacity=0.5,
parent=self)
def createSelfIntersecting():
avg.PolygonNode(pos=((0, 0), (200, 0), (200, 100), (0, 0),
(100, 200), (0, 200)),
parent=canvas)
