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import math
import enamlx
enamlx.install()
from enaml.core.api import Looper
from enamlx.widgets.api import (
GraphicsView, GraphicsItem, GraphicsTextItem, GraphicsRectItem,
GraphicsPolygonItem, GraphicsEllipseItem, GraphicsLineItem,
GraphicsPathItem, GraphicsItemGroup, GraphicsWidget, Pen, Brush
)
from enaml.widgets.api import (
MainWindow, Container, PushButton, CheckBox, RadioButton, SpinBox,
Menu, Action, MenuBar
)
from enaml.qt.QtGui import QPainterPath
from enaml.application import timed_call
from random import randint
enamldef Main(MainWindow): window:
attr blue_pen = Pen(color='blue')
attr red_pen = Pen(color='red')
attr green_brush = Brush(color='green')
initial_size = canvas.size
MenuBar:
Menu:
title = "&File"
Action:
text = "Quit\tCtrl+Q"
triggered :: raise SystemExit(0)
Container:
padding = 0
GraphicsView: canvas:
attr size = (960, 960)
background = "#fff"
Looper:
iterable = range(500)
GraphicsTextItem:
position = (0, loop_index*20)
rotation = loop_index%30
pen = blue_pen if loop_index & 1 else red_pen
text << "{}".format(position)
GraphicsTextItem:
attr delay = 100+10*loop_index
attr fade_dir = -0.1
activated :: timed_call(delay, fade_in_and_out)
position = (300, loop_index*20, 0)
text << "{} {} {}".format(position.x, position.y, position.z)
func fade_in_and_out():
if self.opacity <= 0 or self.opacity >= 1:
self.fade_dir *= -1
self.opacity -= self.fade_dir
timed_call(delay, fade_in_and_out)
GraphicsEllipseItem:
attr delay = randint(500, 1000)
activated :: timed_call(delay, move_around)
func move_around():
self.position += (randint(-10, 10), randint(-10, 10))
timed_call(delay, move_around)
position = (randint(0, 240),
randint(500, 640), 0)
opacity = 0.3
pen = blue_pen if loop_index & 1 else red_pen
width = 20
height = 30
GraphicsRectItem:
brush = green_brush
position = (randint(0, 640),
randint(0, 640), 0)
opacity = 0.3
width = 10
GraphicsWidget:
position = (500, 100)
rotation = 90.0
PushButton:
text = "Click me!"
clicked :: parent.position += (0, 10)
# Grid
GraphicsItemGroup:
opacity = 0.05
Looper:
iterable = range(100)
GraphicsLineItem:
position = (10*loop_index, 0)
point = (10*loop_index, canvas.size[1], 0)
GraphicsLineItem:
position = (0, 10*loop_index)
point = (canvas.size[0], 10*loop_index, 0)
GraphicsPolygonItem:
scale = 3
points = [(i, 100+10*math.sin(i)) for i in range(100)]
GraphicsPathItem:
pen = Pen(color="purple", width=2)
scale = 3
movable = True
path << redraw(self.position)
func redraw(position):
x, y, z = position
p = QPainterPath()
p.moveTo(x, y)
p.lineTo(x+10, y)
w, h = 10, 10
p.addEllipse(x+10, y-w/2, w, h)
p.lineTo(x+10+w+10, y)
return p
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