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How to use setPreprocessFilter method in fMBT

Best Python code snippet using fMBT_python
eyenfinger.py
Source:eyenfinger.py
...38python -c '39from eyenfinger import *40evaluatePreprocessFilter("screenshot.png", "-sharpen 5 -resize 1600x", ["File", "View"])41'42setPreprocessFilter() sets given filter to be used when reading text from images.43Debugging44---------45iClickWord() capture parameter visualises coordinates to be clicked. Example:46python -c '47from eyenfinger import *48setPreprocessFilter("-sharpen 5 -filter Mitchell -resize 1600x -level 40%,50%,3.0")49iRead(source="screenshot.png")50iClickWord("[initial", clickPos=(-2,3), capture="highlight.png", dryRun=True)51'52"""53import distutils.sysconfig54import time55import subprocess56import re57import math58import htmlentitydefs59import sys60import os61import tempfile62import atexit63import shlex64import shutil65import ctypes66import platform67import struct68import warnings69import fmbt_config70def _DEPRECATED():71    warnings.warn("eyenfinger.py API is deprecated, use fmbtx11 instead.",72                  DeprecationWarning, stacklevel=2)73_g_preprocess = "-sharpen 5 -filter Mitchell -resize 1920x1600 -level 40%%,70%%,5.0 -sharpen 5"74_g_readImage = None75_g_origImage = None76_g_hocr = ""77_g_words = None78_g_lastWindow = None79_g_defaultClickDryRun = False80_g_defaultDelayedDrawing = False81_g_defaultIconMatch = 1.082_g_defaultIconColorMatch = 1.083_g_defaultIconOpacityLimit = 0.084_g_defaultInputKeyDevice = None85_g_defaultReadWithOCR = True86# windowsOffsets maps window-id to (x, y) pair.87_g_windowOffsets = {None: (0,0)}88# windowsSizes maps window-id to (width, height) pair.89_g_windowSizes = {None: (0,0)}90# screenSize is a (width, height) pair.91_g_screenSize = (0, 0)92_g_tempdir = tempfile.mkdtemp(prefix="eyenfinger.%s." % (os.getpid(),))93SCREENSHOT_FILENAME = _g_tempdir + "/screenshot.png"94LOG_FILENAME = _g_tempdir + "/eyenfinger.log"95MOUSEEVENT_MOVE, MOUSEEVENT_CLICK, MOUSEEVENT_DOWN, MOUSEEVENT_UP = range(4)96# Xkeys contains key names known to X11, see keysymdef.h.97Xkeys = [98    "BackSpace", "Tab", "Linefeed", "Clear", "Return", "Pause",99    "Scroll_Lock", "Sys_Req", "Escape", "Delete", "Home", "Left",100    "Up", "Right", "Down", "Prior", "Page_Up", "Next", "Page_Down",101    "End", "Begin", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8",102    "F9", "F10", "F11", "F12", "Shift_L", "Shift_R", "Control_L",103    "Control_R", "Caps_Lock", "Shift_Lock", "Meta_L", "Meta_R",104    "Alt_L", "Alt_R", "space", "exclam", "quotedbl", "numbersign",105    "dollar", "percent", "ampersand", "apostrophe", "quoteright",106    "parenleft", "parenright", "asterisk", "plus", "comma", "minus",107    "period", "slash", "0", "1", "2", "3", "4", "5", "6", "7", "8",108    "9", "colon", "semicolon", "less", "equal", "greater", "question",109    "at", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L",110    "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y",111    "Z", "bracketleft", "backslash", "bracketright", "asciicircum",112    "underscore", "grave", "quoteleft", "a", "b", "c", "d", "e", "f",113    "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s",114    "t", "u", "v", "w", "x", "y", "z", "braceleft", "bar",115    "braceright"]116# InputKeys contains key names known to input devices, see117# linux/input.h or http://www.usb.org/developers/hidpage. The order is118# significant, because keyCode = InputKeys.index(keyName).119InputKeys = [120    "RESERVED", "ESC","1", "2", "3", "4", "5", "6", "7", "8", "9", "0",121    "MINUS", "EQUAL", "BACKSPACE", "TAB",122    "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P",123    "LEFTBRACE", "RIGHTBRACE", "ENTER", "LEFTCTRL",124    "A", "S", "D", "F", "G", "H", "J", "K", "L",125    "SEMICOLON", "APOSTROPHE", "GRAVE", "LEFTSHIFT", "BACKSLASH",126    "Z", "X", "C", "V", "B", "N", "M",127    "COMMA", "DOT", "SLASH", "RIGHTSHIFT", "KPASTERISK", "LEFTALT",128    "SPACE", "CAPSLOCK",129    "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10",130    "NUMLOCK", "SCROLLLOCK",131    "KP7", "KP8", "KP9", "KPMINUS",132    "KP4", "KP5", "KP6", "KPPLUS",133    "KP1", "KP2", "KP3", "KP0", "KPDOT",134    "undefined0",135    "ZENKAKUHANKAKU", "102ND", "F11", "F12", "RO",136    "KATAKANA", "HIRAGANA", "HENKAN", "KATAKANAHIRAGANA", "MUHENKAN",137    "KPJPCOMMA", "KPENTER", "RIGHTCTRL", "KPSLASH", "SYSRQ", "RIGHTALT",138    "LINEFEED", "HOME", "UP", "PAGEUP", "LEFT", "RIGHT", "END", "DOWN",139    "PAGEDOWN", "INSERT", "DELETE", "MACRO",140    "MUTE", "VOLUMEDOWN", "VOLUMEUP",141    "POWER",142    "KPEQUAL", "KPPLUSMINUS", "PAUSE", "SCALE", "KPCOMMA", "HANGEUL",143    "HANGUEL", "HANJA", "YEN", "LEFTMETA", "RIGHTMETA", "COMPOSE"]144_inputKeyShorthands = {145    "-": "MINUS", "=": "EQUAL",146    "[": "LEFTBRACE", "]": "RIGHTBRACE", "\n": "ENTER",147    ";": "SEMICOLON",148    ",": "COMMA", ".": "DOT", "/": "SLASH",149    " ": "SPACE" }150class EyenfingerError(Exception):151    pass152class BadMatch (EyenfingerError):153    pass154class BadWindowName (EyenfingerError):155    pass156class BadSourceImage(EyenfingerError):157    pass158class BadIconImage(EyenfingerError):159    pass160class NoOCRResults(EyenfingerError):161    pass162try:163    import fmbt164    def _log(msg):165        fmbt.adapterlog("eyenfinger: %s" % (msg,))166except ImportError:167    def _log(msg):168        file(LOG_FILENAME, "a").write("%13.2f %s\n" %169                                      (time.time(), msg))170try:171    _libpath = ["", ".",172            os.path.dirname(os.path.abspath(__file__)),173            distutils.sysconfig.get_python_lib(plat_specific=1)]174    _suffix = ".so"175    if os.name == "nt":176        _suffix = ".dll"177    for _dirname in _libpath:178        try:179            eye4graphics = ctypes.CDLL(os.path.join(_dirname , "eye4graphics"+_suffix))180            break181        except: pass182    else:183        raise ImportError("%s cannot load eye4graphics%s" % (__file__, _suffix))184    class Bbox(ctypes.Structure):185        _fields_ = [("left", ctypes.c_int32),186                    ("top", ctypes.c_int32),187                    ("right", ctypes.c_int32),188                    ("bottom", ctypes.c_int32),189                    ("error", ctypes.c_int32)]190except Exception, e:191    Bbox = None192    eye4graphics = None193    _log('Loading icon recognition library failed: "%s".' % (e,))194# See struct input_event in /usr/include/linux/input.h195if platform.architecture()[0] == "32bit":196    _InputEventStructSpec = 'IIHHi'197else:198    _InputEventStructSpec = 'QQHHi'199# Event and keycodes are in input.h, too.200_EV_KEY = 0x01201# _inputKeyNameCodeMap is a dictionary keyName -> keyCode202_inputKeyNameCodeMap = {}203for code, name in enumerate(InputKeys):204    _inputKeyNameCodeMap[name] = code205def _inputKeyNameToCode(keyName):206    if keyName in _inputKeyNameCodeMap:207        return _inputKeyNameCodeMap[keyName]208    elif keyName in _inputKeyShorthands:209        return _inputKeyNameCodeMap[_inputKeyShorthands[keyName]]210    else:211        raise ValueError('Invalid key name "%s"' % (keyName,))212def error(msg, exitstatus=1):213    sys.stderr.write("eyenfinger: %s\n" % (msg,))214    sys.exit(1)215def printEventsFromFile(filename):216    fd = os.open(filename, os.O_RDONLY)217    try:218        while 1:219            evString = os.read(fd, struct.calcsize(_InputEventStructSpec))220            if not evString: break221            tim, tus, typ, cod, val = struct.unpack(_InputEventStructSpec, evString)222            if cod < len(InputKeys):223                nam = InputKeys[cod]224            else:225                nam = "N/A"226            print "time: %8s, susc: %8s, type: %8s, keyCode: %5s name: %10s value: %8s" % \227                (tim, tus, typ, cod, nam, val)228    finally:229        os.close(fd)230def printEventsFromDevice(deviceName):231    devices = dict(_listInputDevices())232    if not deviceName in devices:233        error('Unknown device "%s". Available devices: %s' %234              (deviceName, sorted(devices.keys())))235    else:236        printEventsFromFile(devices[deviceName])237def _exitHandler():238    shutil.rmtree(_g_tempdir, ignore_errors=True)239atexit.register(_exitHandler)240def _runcmd(cmd):241    global _g_last_runcmd_error242    p = subprocess.Popen(cmd, shell=isinstance(cmd, basestring),243                         stdout=subprocess.PIPE, stderr=subprocess.PIPE)244    output = p.stdout.read()245    exit_status = p.wait()246    _g_last_runcmd_error = p.stderr.read()247    if exit_status != 0:248        _log("runcmd: %s" % (cmd,))249        _log("exit status: " + str(exit_status))250        _log("stdout: " + output)251        _log("stderr: " + _g_last_runcmd_error)252    else:253        p.stderr.read()254    return exit_status, output255def _runDrawCmd(inputfilename, cmd, outputfilename):256    if not _g_defaultDelayedDrawing:257        return _runcmd([fmbt_config.imagemagick_convert,258                        inputfilename] + cmd + [outputfilename])259    # Do delayed drawing to save test execution time. If the output260    # file does not exist, just copy inputfile to outputfile and start261    # logging delayed draw commands to262    # outputfile.delayeddraw. Otherwise append latest command to263    # outputfile.delayeddraw.264    delayedCmd = '%s "%s" "%s" "%s"\n' % (265        fmbt_config.imagemagick_convert,266        outputfilename, '%s' % ('" "'.join(cmd)), outputfilename)267    delayedDrawFilename = outputfilename + ".delayeddraw"268    try:269        if os.access(outputfilename, os.R_OK) == False:270                shutil.copy(inputfilename, outputfilename)271                file(delayedDrawFilename, "w").write(delayedCmd)272        else:273            file(delayedDrawFilename, "a").write(delayedCmd)274    except:275        _log("error on delayed drawing: %s" % (delayedCmd,))276        raise277    _log("delayed drawing: %s" % (delayedCmd,))278    return (0, "")279def _safeForShell(s):280    # convert all non-ascii and bad chars to _281    try: s = unicode(s, "utf-8")282    except: pass283    return ''.join([(c, "_")[ord(c)>128 or c in "'\"\\`"] for c in s])284def _coordsToInt((x,y), (width, height)=(None, None)):285    """286    Convert percentages to screen coordinates287    """288    if (width == None or height == None):289        width, height = screenSize()290    if 0.0 <= x <= 1.0 and type(x) == float:291        x = int(round(x * width))292    else:293        x = int(x)294    if 0.0 <= y <= 1.0 and type(y) == float:295        y = int(round(y * height))296    else:297        y = int(y)298    return (x, y)299def setPreprocessFilter(preprocess):300    global _g_preprocess301    _g_preprocess = preprocess302def iSetDefaultClickDryRun(dryRun):303    """304    Set the default value for optional dryRun parameter for iClick*305    functions.306    """307    global _g_defaultClickDryRun308    _g_defaultClickDryRun = dryRun309def iSetDefaultDelayedDrawing(delayedDrawing):310    """311    Set the default for delaying drawing operations on captured312    screenshots.313    If delayedDrawing == False, drawing actions on screenshots (like...
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