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Open Source Computer Vision Library
https://opencv.org/
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78 lines
2.6 KiB
78 lines
2.6 KiB
15 years ago
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#! /usr/bin/env python
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"""
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This script will test highgui's mouse functionality
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"""
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# name of this test and it's requirements
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TESTNAME = "cvSetMouseCallback"
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REQUIRED = ["cvShowImage"]
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# needed for sys.exit(int) and .works file handling
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import os
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import sys
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import works
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# check requirements and delete old flag file, if it exists
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if not works.check_files(REQUIRED,TESTNAME):
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sys.exit(77)
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# import the necessary things for OpenCV
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from highgui import *
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from cv import *
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# global variable which stores information about the pressed mousebuttons
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mouse_events = [False,False,False,False,False,False,False,False,False,False]
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event_detected = False
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# some definitions
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win_name = "testing..."
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EVENTS = ['CV_EVENT_MOUSEMOVE', 'CV_EVENT_LBUTTONDOWN', 'CV_EVENT_RBUTTONDOWN', 'CV_EVENT_MBUTTONDOWN', 'CV_EVENT_LBUTTONUP',
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'CV_EVENT_RBUTTONUP', 'CV_EVENT_MBUTTONUP' , 'CV_EVENT_LBUTTONDBLCLK','CV_EVENT_RBUTTONDBLCLK','CV_EVENT_MBUTTONDBLCLK']
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# our callback function, 5th parameter not used here.
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def callback_function(event,x,y,flag,param):
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globals()["event_detected"] = True
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# check if event already occured; if not, output info about new event.
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if globals()["mouse_events"][event] == False:
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print "Event "+globals()["EVENTS"][event]+" detected."
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globals()["mouse_events"][event] = True
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return
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# create a window ('cvNamedWindow.works' exists, so it must work)
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cvNamedWindow(win_name,CV_WINDOW_AUTOSIZE)
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# show the baboon in the window
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PREFIX = os.path.join(os.environ["srcdir"],"../../opencv_extra/testdata/python/images/")
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cvShowImage(win_name, cvLoadImage(PREFIX+"cvSetMouseCallback.jpg"))
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# assign callback function 'callback_function' to window, no parameters used here
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cvSetMouseCallback( win_name, callback_function )
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# give the user information about the test and wait for input
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print "(INFO) Please hover the mouse over the baboon image and press"
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print "(INFO) your available mousebuttons inside the window to 'PASS' this test."
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print "(INFO) You may also perform double-clicks."
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print "(INFO) Press a key on your keyboard ot wait 20 seconds to continue."
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print "(HINT) If no mouseevent was detected this test will be remarked as 'FAIL'."
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# now wait 20 seconds for user to press a key
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cvWaitKey(20000)
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# reset mouse callback
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cvSetMouseCallback( win_name, 0 )
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# destroy the window
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cvDestroyWindow( win_name )
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# check if a mouse event had beed detected
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if not event_detected:
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# user didn't interact properly or mouse functionality doesn't work correctly
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print "(ERROR) No mouse event detected."
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sys.exit(1)
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# create flag file for following tests
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works.set_file(TESTNAME)
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# return 0 (success)
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sys.exit(0)
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