Files
displayarray/examples/test_sub_win.py
simleek 31eb98c925 Added examples for newer API.
Former-commit-id: 7895f083379c6935d11e8ed164ee9a9eae75bc7e
2019-10-03 00:17:38 -07:00

153 lines
4.9 KiB
Python

import unittest as ut
import displayarray.frame_publising as w
from displayarray.subscriber_window import SubscriberWindows
from displayarray import display
from displayarray.input import mouse_loop, key_loop, MouseEvent
import numpy as np
class TestSubWin(ut.TestCase):
def test_mouse_loop(self):
@mouse_loop
def print_mouse_thread(mouse_event):
print(mouse_event)
display("fractal test.mp4", blocking=True)
def test_key_loop(self):
@key_loop
def print_key_thread(key_chr):
print("key pressed: " + str(key_chr))
w.VideoHandlerThread().display()
def test_sub(self):
w.VideoHandlerThread().display()
def test_image(self):
img = np.random.uniform(0, 1, (300, 300, 3))
w.VideoHandlerThread(video_source=img).display()
def test_image_args(self):
img = np.random.uniform(0, 1, (30, 30, 3))
w.VideoHandlerThread(video_source=img, request_size=(300, -1)).display()
def test_sub_with_args(self):
video_thread = w.VideoHandlerThread(
video_source=0, request_size=(800, 600), high_speed=False, fps_limit=8
)
video_thread.display()
def test_sub_with_callback(self):
def redden_frame_print_spam(frame):
frame[:, :, 0] = 0
frame[:, :, 2] = 0
w.VideoHandlerThread(callbacks=redden_frame_print_spam).display()
def test_sub_with_callback_exception(self):
def redden_frame_print_spam(frame):
frame[:, :, 0] = 0
frame[:, :, 2] = 1 / 0
with self.assertRaises(ZeroDivisionError) as e:
v = w.VideoHandlerThread(callbacks=redden_frame_print_spam)
v.display()
self.assertEqual(v.exception_raised, e)
def test_multi_cams_one_source(self):
display(0, window_names=["cammy", "cammy2"], blocking=True)
def test_multi_cams_multi_source(self):
display(0, np.random.uniform(0.0, 1.0, (500, 500)), blocking=True)
def test_nested_frames(self):
def nest_frame(frame):
frame = np.asarray([[[[[[frame]]]]], [[[[[frame]]], [[[frame]]]]]])
return frame
display(0, callbacks=nest_frame, window_names=["1", "2", "3"], blocking=True)
def test_nested_frames_exception(self):
def nest_frame(frame):
frame = np.asarray([[[[[[frame + 1 / 0]]]]], [[[[[frame]]], [[[frame]]]]]])
return frame
v = w.VideoHandlerThread(callbacks=[nest_frame])
v.start()
with self.assertRaises(ZeroDivisionError) as e:
SubscriberWindows(
window_names=[str(i) for i in range(3)], video_sources=[str(0)]
).loop()
self.assertEqual(v.exception_raised, e)
v.join()
def test_conway_life(self):
from displayarray.frame_publising import VideoHandlerThread
from displayarray.callbacks import function_display_callback
import numpy as np
import cv2
img = np.zeros((50, 50, 1))
img[0:5, 0:5, :] = 1
def conway(array, coords, finished):
neighbors = np.sum(
array[
max(coords[0] - 1, 0): min(coords[0] + 2, 50),
max(coords[1] - 1, 0): min(coords[1] + 2, 50),
]
)
neighbors = max(neighbors - np.sum(array[coords[0:2]]), 0.0)
if array[coords] == 1.0:
if neighbors < 2 or neighbors > 3:
array[coords] = 0.0
elif 2 <= neighbors <= 3:
array[coords] = 1.0
else:
if neighbors == 3:
array[coords] = 1.0
@mouse_loop
def conway_add(
mouse_event # type:MouseEvent
):
if 0 <= mouse_event.x < 50 and 0 <= mouse_event.y < 50:
if mouse_event.flags == cv2.EVENT_FLAG_LBUTTON:
img[
mouse_event.y - 5: mouse_event.y + 10,
mouse_event.x - 5: mouse_event.x + 10,
:,
] = 0.0
elif mouse_event.flags == cv2.EVENT_FLAG_RBUTTON:
img[
mouse_event.y - 5: mouse_event.y + 10,
mouse_event.x - 5: mouse_event.x + 10,
:,
] = 1.0
VideoHandlerThread(
video_source=img, callbacks=function_display_callback(conway)
).display()
def test_double_win(self):
vid1 = np.ones((100, 100))
vid2 = np.zeros((100, 100))
t1 = w.VideoHandlerThread(vid1)
t2 = w.VideoHandlerThread(vid2)
t1.start()
t2.start()
SubscriberWindows(
window_names=["cammy", "cammy2"], video_sources=[vid1, vid2]
).loop()
t1.join()
t1.join()
def test_display(self):
display(np.ones((100, 100)), np.zeros((100, 100)), blocking=True)