upiwin/scripts/test_clipping.py

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# Test of line clipping
import upiwin
hdc = upiwin.DevCtxt(type='screen')
hdc.text_color = 0xFFFFFF # white
hdc.rectangle(100, 100, 199, 199)
clip = hdc.get_clip_rect()
hdc.set_clip_rect(100, 100, 200, 200)
hdc.text_color = 0x0000FF # red
hdc.move_to(50, 199)
hdc.line_to(199, 50)
hdc.text_color = 0x00FF00 # green
hdc.move_to(250, 199)
hdc.line_to(100, 50)
hdc.set_clip_rect(clip[0], clip[1], clip[2], clip[3])
msg = {}
while upiwin.get_message(msg):
if msg['message'] == upiwin.WM_HWBUTTONUP:
bn = msg['attrs'][0]
if bn == 4:
print("Quitting the application.")
upiwin.post_quit_message(0)