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How to use _dumpOcr method in fMBT

Best Python code snippet using fMBT_python

fmbtgti.py

Source:fmbtgti.py

...267    into fmbtgti.GUITestInterface instances and Screenshots.268    To implement an OCR engine, you need to override _findText() at269    minimum. See _findText documentation in this class for270    requirements.271    If possible in your OCR engine, you can provide _dumpOcr() to272    reveal what is recognized in screenshots.273    For efficient caching of results and freeing cached results, you274    can override _addScreenshot() and _removeScreenshot(). Every275    screenshot is added before findText() or dumpOcr().276    A typical usage of OcrEngine instance:277    - oe.addScreenshot(ss)278    - oe.findText(ss, text1, <engine/screenshot/find-specific-args>)279    - oe.findText(ss, text2, <engine/screenshot/find-specific-args>)280    - oe.removeScreenshot(ss)281    Note that there may be several screenshots added before they are282    removed.283    """284    def __init__(self, *args, **kwargs):285        super(OcrEngine, self).__init__(*args, **kwargs)286        self._ssFindTextDefaults = {}287        self._findTextDefaults = {}288        ocrFindArgs, _ = _takeOcrArgs(self, kwargs)289        self._setFindTextDefaults(ocrFindArgs)290    def dumpOcr(self, screenshot, **kwargs):291        """292        Returns what is recognized in the screenshot. For debugging293        purposes.294        """295        ocrArgs = self.__ocrArgs(screenshot, **kwargs)296        return self._dumpOcr(screenshot, **ocrArgs)297    def _dumpOcr(self, screenshot, **kwargs):298        return None299    def addScreenshot(self, screenshot, **findTextDefaults):300        """301        Prepare for finding text from the screenshot.302        Parameters:303          screenshot (fmbtgti.Screenshot)304                  screenshot object to be searched from.305          other parameters (optional)306                  findText defaults for this screenshot.307        Notice that there may be many screenshots simultaneously.308        Do not keep reference to the screenshot object.309        """310        self.setScreenshotFindTextDefaults(screenshot, **findTextDefaults)311        return self._addScreenshot(screenshot, **findTextDefaults)312    def _addScreenshot(self, screenshot, **findTextDefaults):313        pass314    def removeScreenshot(self, screenshot):315        """316        OCR queries on the screenshot will not be made anymore.317        """318        self._removeScreenshot(screenshot)319        try:320            del self._ssFindTextDefaults[id(screenshot)]321        except KeyError:322            raise KeyError('screenshot "%s" does not have findTextDefaults. '323                           'If OcrEngine.addScreenshot() is overridden, it '324                           '*must* call parent\'s addScreenshot.' % (screenshot.filename(),))325    def _removeScreenshot(self, screenshot):326        pass327    def setFindTextDefaults(self, **findTextDefaults):328        return self._setFindTextDefaults(findTextDefaults, screenshot=None)329    def setScreenshotFindTextDefaults(self, screenshot, **findTextDefaults):330        return self._setFindTextDefaults(findTextDefaults, screenshot=screenshot)331    def _setFindTextDefaults(self, defaults, screenshot=None):332        """333        Set default values for optional arguments for findText().334        Parameters:335          defaults (dictionary)336                  Default keyword arguments and their values.337          screenshot (optional, fmbtgti.Screenshot instance)338                  Use the defaults for findText on this screenshot. If339                  the defaults are None, make them default for all340                  screenshots. Screenshot-specific defaults override341                  engine default.342        """343        if screenshot == None:344            self._findTextDefaults.update(defaults)345        else:346            ssid = id(screenshot)347            if not ssid in self._ssFindTextDefaults:348                self._ssFindTextDefaults[ssid] = self._findTextDefaults.copy()349            self._ssFindTextDefaults[ssid].update(defaults)350    def findTextDefaults(self, screenshot=None):351        if screenshot == None:352            return self._findTextDefaults353        elif id(screenshot) in self._ssFindTextDefaults:354            return self._ssFindTextDefaults[id(screenshot)]355        else:356            return None357    def _findTextArgNames(self):358        """359        Returns names of optional findText arguments.360        """361        return inspect.getargspec(self._findText).args[3:]362    def __ocrArgs(self, screenshot, **priorityArgs):363        ocrArgs = {}364        ocrArgs.update(self._findTextDefaults)365        ssId = id(screenshot)366        if ssId in self._ssFindTextDefaults:367            ocrArgs.update(self._ssFindTextDefaults[ssId])368        ocrArgs.update(priorityArgs)369        return ocrArgs370    def findText(self, screenshot, text, **kwargs):371        """372        Return list of fmbtgti.GUIItems that match to text.373        """374        ocrArgs = self.__ocrArgs(screenshot, **kwargs)375        return self._findText(screenshot, text, **ocrArgs)376    def _findText(self, screenshot, text, **kwargs):377        """378        Find appearances of text from the screenshot.379        Parameters:380          screenshot (fmbtgti.Screenshot)381                  Screenshot from which text is to be searched382                  for. Use Screenshot.filename() to get the filename.383          text (string)384                  text to be searched for.385          other arguments (engine specific)386                  kwargs contain keyword arguments given to387                  findText(screenshot, text, ...), already extended388                  first with screenshot-specific findTextDefaults, then389                  with engine-specific findTextDefaults.390                  _findText *must* define all engine parameters as391                  explicit keyword arguments:392                  def _findText(self, screenshot, text, engArg1=42):393                      ...394        Return list of fmbtgti.GUIItems.395        """396        raise NotImplementedError("_findText needed but not implemented.")397class _EyenfingerOcrEngine(OcrEngine):398    """399    OCR engine parameters that can be used in all400    ...OcrText() methods (swipeOcrText, tapOcrText, findItemsByOcrText, ...):401      match (float, optional):402              minimum match score in range [0.0, 1.0].  The default is403              1.0 (exact match).404      area ((left, top, right, bottom), optional):405              search from the given area only. Left, top, right and406              bottom are either absolute coordinates (integers) or407              floats in range [0.0, 1.0]. In the latter case they are408              scaled to screenshot dimensions. The default is (0.0,409              0.0, 1.0, 1.0), that is, search everywhere in the410              screenshot.411      pagesegmodes (list of integers, optional):412              try all integers as tesseract -pagesegmode413              arguments. The default is [3], another good option could414              be [3, 6].415      preprocess (string, optional):416              preprocess filter to be used in OCR for better417              result. Refer to eyenfinger.autoconfigure to search for418              a good one.419    """420    class _OcrResults(object):421        __slots__ = ("filename", "screenSize", "pagesegmodes", "preprocess", "area", "words")422        def __init__(self, filename, screenSize):423            self.filename = filename424            self.screenSize = screenSize425            self.pagesegmodes = None426            self.preprocess = None427            self.area = None428            self.words = None429    def __init__(self, *args, **engineDefaults):430        engineDefaults["area"] = engineDefaults.get("area", (0.0, 0.0, 1.0, 1.0))431        engineDefaults["match"] = engineDefaults.get("match", 1.0)432        engineDefaults["pagesegmodes"] = engineDefaults.get("pagesegmodes", _OCRPAGESEGMODES)433        engineDefaults["preprocess"] = engineDefaults.get("preprocess", _OCRPREPROCESS)434        super(_EyenfingerOcrEngine, self).__init__(*args, **engineDefaults)435        self._ss = {} # OCR results for screenshots436    def _addScreenshot(self, screenshot, **findTextDefaults):437        ssId = id(screenshot)438        self._ss[ssId] = _EyenfingerOcrEngine._OcrResults(screenshot.filename(), screenshot.size())439    def _removeScreenshot(self, screenshot):440        ssId = id(screenshot)441        if ssId in self._ss:442            del self._ss[ssId]443    def _findText(self, screenshot, text, match=None, preprocess=None, area=None, pagesegmodes=None):444        ssId = id(screenshot)445        self._assumeOcrResults(screenshot, preprocess, area, pagesegmodes)446        for ppfilter in self._ss[ssId].words.keys():447            try:448                score_text_bbox_list = eyenfinger.findText(449                    text, self._ss[ssId].words[ppfilter], match=match)450                if not score_text_bbox_list:451                    continue452                else:453                    break454            except eyenfinger.BadMatch:455                continue456        else:457            return []458        retval = [GUIItem("OCR text (match %.2f)" % (score,),459                          bbox, self._ss[ssId].filename,460                          ocrFind=text, ocrFound=matching_text)461                  for score, matching_text, bbox in score_text_bbox_list]462        return retval463    def _dumpOcr(self, screenshot, match=None, preprocess=None, area=None, pagesegmodes=None):464        ssId = id(screenshot)465        if self._ss[ssId].words == None:466            self._assumeOcrResults(screenshot, preprocess, area, pagesegmodes)467        w = []468        for ppfilter in self._ss[ssId].preprocess:469            for word in self._ss[ssId].words[ppfilter]:470                for appearance, (wid, middle, bbox) in enumerate(self._ss[ssId].words[ppfilter][word]):471                    (x1, y1, x2, y2) = bbox472                    w.append((word, (x1, y1, x2, y2)))473        return sorted(set(w), key=lambda i:(i[1][1]/8, i[1][0]))474    def _assumeOcrResults(self, screenshot, preprocess, area, pagesegmodes):475        ssId = id(screenshot)476        if not type(preprocess) in (list, tuple):477            preprocess = [preprocess]...

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