Ejemplo n.º 1
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 def select_file(self):
     """Open a file selection dialog box"""
     fname = self.item.from_string(to_text_string(self.edit.text()))
     if isinstance(fname, list):
         fname = osp.dirname(fname[0])
     parent = self.parent_layout.parent
     _temp = sys.stdout
     sys.stdout = None
     if len(fname) == 0:
         fname = self.basedir
     _formats = self.item.get_prop_value("data", "formats")
     formats = [to_text_string(format).lower() for format in _formats]
     filter_lines = [(_("%s files")+" (*.%s)") % (format.upper(), format)
                     for format in formats]
     all_filter = _("All supported files")+" (*.%s)" % " *.".join(formats)
     if len(formats) > 1:
         if self.all_files_first:
             filter_lines.insert(0, all_filter)
         else:
             filter_lines.append(all_filter)
     if fname is None:
         fname = ""
     child_title = _get_child_title_func(parent)
     fname, _filter = self.filedialog(parent, child_title(self.item), fname,
                                      "\n".join(filter_lines))
     sys.stdout = _temp
     if fname:
         if isinstance(fname, list):
             fname = to_text_string(fname)
         self.edit.setText(fname)
Ejemplo n.º 2
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def _qfiledialog_wrapper(attr, parent=None, caption='', basedir='',
                         filters='', selectedfilter='', options=None):
    if options is None:
        options = QFileDialog.Options(0)
    try:
        # PyQt <v4.6 (API #1)
        from guidata.qt.QtCore import QString
    except ImportError:
        # PySide or PyQt >=v4.6
        QString = None  # analysis:ignore
    tuple_returned = True
    try:
        # PyQt >=v4.6
        func = getattr(QFileDialog, attr+'AndFilter')
    except AttributeError:
        # PySide or PyQt <v4.6
        func = getattr(QFileDialog, attr)
        if QString is not None:
            selectedfilter = QString()
            tuple_returned = False
    
    # Calling QFileDialog static method
    if sys.platform == "win32":
        # On Windows platforms: redirect standard outputs
        _temp1, _temp2 = sys.stdout, sys.stderr
        sys.stdout, sys.stderr = None, None
    try:
        result = func(parent, caption, basedir,
                      filters, selectedfilter, options)
    except TypeError:
        # The selectedfilter option (`initialFilter` in Qt) has only been 
        # introduced in Jan. 2010 for PyQt v4.7, that's why we handle here 
        # the TypeError exception which will be raised with PyQt v4.6
        # (see Issue 960 for more details)
        result = func(parent, caption, basedir, filters, options)
    finally:
        if sys.platform == "win32":
            # On Windows platforms: restore standard outputs
            sys.stdout, sys.stderr = _temp1, _temp2
            
    # Processing output
    if tuple_returned:
        # PySide or PyQt >=v4.6
        output, selectedfilter = result
    else:
        # PyQt <v4.6 (API #1)
        output = result
    if QString is not None:
        # PyQt API #1: conversions needed from QString/QStringList
        selectedfilter = to_text_string(selectedfilter)
        if isinstance(output, QString):
            # Single filename
            output = to_text_string(output)
        else:
            # List of filenames
            output = [to_text_string(fname) for fname in output]
            
    # Always returns the tuple (output, selectedfilter)
    return output, selectedfilter
Ejemplo n.º 3
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def utf8_to_unicode(string):
    """Convert UTF-8 string to Unicode"""
    if not is_text_string(string):
        string = to_text_string(string)
    if not is_unicode(string):
        try:
            string = to_text_string(string, "utf-8")
        except UnicodeDecodeError:
            # This is border line... but we admit here string which has been 
            # erroneously encoded in file system charset instead of UTF-8
            string = decode_fs_string(string)
    return string
Ejemplo n.º 4
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def utf8_to_unicode(string):
    """Convert UTF-8 string to Unicode"""
    if not is_text_string(string):
        string = to_text_string(string)
    if not is_unicode(string):
        try:
            string = to_text_string(string, "utf-8")
        except UnicodeDecodeError:
            # This is border line... but we admit here string which has been
            # erroneously encoded in file system charset instead of UTF-8
            string = decode_fs_string(string)
    return string
Ejemplo n.º 5
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def exec_image_open_dialog(parent, basedir='', app_name=None,
                           to_grayscale=True, dtype=None):
    """
    Executes an image open dialog box (QFileDialog.getOpenFileName)
        * parent: parent widget (None means no parent)
        * basedir: base directory ('' means current directory)
        * app_name (opt.): application name (used as a title for an eventual 
          error message box in case something goes wrong when saving image)
        * to_grayscale (default=True): convert image to grayscale
    
    Returns (filename, data) tuple if dialog is accepted, None otherwise
    """
    saved_in, saved_out, saved_err = sys.stdin, sys.stdout, sys.stderr
    sys.stdout = None
    filename, _filter = getopenfilename(parent, _("Open"), basedir,
                                io.iohandler.get_filters('load', dtype=dtype))
    sys.stdin, sys.stdout, sys.stderr = saved_in, saved_out, saved_err
    filename = to_text_string(filename)
    try:
        data = io.imread(filename, to_grayscale=to_grayscale)
    except Exception as msg:
        import traceback
        traceback.print_exc()
        QMessageBox.critical(parent,
             _('Error') if app_name is None else app_name,
             (_("%s could not be opened:") % osp.basename(filename))+\
             "\n"+str(msg))
        return
    return filename, data
Ejemplo n.º 6
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 def __init__(self, label, curve, xrangeselection, function=None):
     self.label = to_text_string(label)
     self.curve = curve
     self.range = xrangeselection
     if function is None:
         function = lambda x, dx: (x, dx)
     self.func = function
Ejemplo n.º 7
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 def setup(self):
     title = to_text_string(self.toolbar.windowTitle())
     self.plotwidget.add_toolbar(self.toolbar, title)
     if isinstance(self.plotwidget, ImageWidget):
         self.plotwidget.register_all_image_tools()
     else:
         self.plotwidget.register_all_curve_tools()
Ejemplo n.º 8
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 def __init__(self, label, curve, xrangeselection, function=None):
     self.label = to_text_string(label)
     self.curve = curve
     self.range = xrangeselection
     if function is None:
         function = lambda x, dx: (x, dx)
     self.func = function
Ejemplo n.º 9
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def exec_image_save_dialog(parent, data, template=None,
                           basedir='', app_name=None):
    """
    Executes an image save dialog box (QFileDialog.getSaveFileName)
        * parent: parent widget (None means no parent)
        * data: image pixel array data
        * template: image template (pydicom dataset) for DICOM files
        * basedir: base directory ('' means current directory)
        * app_name (opt.): application name (used as a title for an eventual 
          error message box in case something goes wrong when saving image)
    
    Returns filename if dialog is accepted, None otherwise
    """
    saved_in, saved_out, saved_err = sys.stdin, sys.stdout, sys.stderr
    sys.stdout = None
    filename, _filter = getsavefilename(parent, _("Save as"), basedir,
        io.iohandler.get_filters('save', dtype=data.dtype, template=template))
    sys.stdin, sys.stdout, sys.stderr = saved_in, saved_out, saved_err
    if filename:
        filename = to_text_string(filename)
        kwargs = {}
        if osp.splitext(filename)[1].lower() == '.dcm':
            kwargs['template'] = template
        try:
            io.imwrite(filename, data, **kwargs)
            return filename
        except Exception as msg:
            import traceback
            traceback.print_exc()
            QMessageBox.critical(parent,
                 _('Error') if app_name is None else app_name,
                 (_("%s could not be written:") % osp.basename(filename))+\
                 "\n"+str(msg))
            return
Ejemplo n.º 10
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def exec_image_open_dialog(parent,
                           basedir='',
                           app_name=None,
                           to_grayscale=True,
                           dtype=None):
    """
    Executes an image open dialog box (QFileDialog.getOpenFileName)
        * parent: parent widget (None means no parent)
        * basedir: base directory ('' means current directory)
        * app_name (opt.): application name (used as a title for an eventual 
          error message box in case something goes wrong when saving image)
        * to_grayscale (default=True): convert image to grayscale
    
    Returns (filename, data) tuple if dialog is accepted, None otherwise
    """
    saved_in, saved_out, saved_err = sys.stdin, sys.stdout, sys.stderr
    sys.stdout = None
    filename, _filter = getopenfilename(
        parent, _("Open"), basedir,
        io.iohandler.get_filters('load', dtype=dtype))
    sys.stdin, sys.stdout, sys.stderr = saved_in, saved_out, saved_err
    filename = to_text_string(filename)
    try:
        data = io.imread(filename, to_grayscale=to_grayscale)
    except Exception as msg:
        import traceback
        traceback.print_exc()
        QMessageBox.critical(parent,
             _('Error') if app_name is None else app_name,
             (_("%s could not be opened:") % osp.basename(filename))+\
             "\n"+str(msg))
        return
    return filename, data
Ejemplo n.º 11
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 def select_directory(self):
     """Open a directory selection dialog box"""
     value = self.item.from_string(to_text_string(self.edit.text()))
     parent = self.parent_layout.parent
     child_title = _get_child_title_func(parent)
     dname = getexistingdirectory(parent, child_title(self.item), value)
     if dname:
         self.edit.setText(dname)
Ejemplo n.º 12
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 def translate_gettext(x):
     if not PY3 and is_unicode(x):
         x = x.encode("utf-8")
     y = lgettext(x)
     if is_text_string(y) and PY3:
         return y
     else:
         return to_text_string(y, "utf-8")
Ejemplo n.º 13
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 def from_string(self, value):
     """Override DataItem method"""
     value = to_text_string(value)
     if value.endswith("']") or value.endswith('"]'):
         value = eval(value)
     else:
         value = [value]
     return [add_extension(self, path) for path in value]
Ejemplo n.º 14
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 def from_string(self, value):        
     """Override DataItem method"""
     value = to_text_string(value)
     if value.endswith("']"):
         value = eval(value)
     else:
         value = [value]
     return [add_extension(self, path) for path in value]
Ejemplo n.º 15
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 def from_string(self, value):
     """Override DataItem method"""
     value = to_text_string(value)  # necessary if value is a QString
     # String may contains numerical operands:
     if re.match(r'^([\d\(\)\+/\-\*.]|e)+$', value):
         try:
             return self.type(eval(value))
         except:
             pass
     return None
Ejemplo n.º 16
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def add_extension(item, value):
    """Add extension to filename
    `item`: data item representing a file path
    `value`: possible value for data item"""
    value = to_text_string(value)
    formats = item.get_prop("data", "formats")
    if len(formats) == 1 and formats[0] != '*':
        if not value.endswith('.' + formats[0]) and len(value) > 0:
            return value + '.' + formats[0]
    return value
Ejemplo n.º 17
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 def from_string(self, value):
     """Override DataItem method"""
     value = to_text_string(value) # necessary if value is a QString
     # String may contains numerical operands:
     if re.match(r'^([\d\(\)\+/\-\*.]|e)+$', value):
         try:
             return self.type(eval(value))
         except:
             pass
     return None
Ejemplo n.º 18
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def add_extension(item, value):
    """Add extension to filename
    `item`: data item representing a file path
    `value`: possible value for data item"""
    value = to_text_string(value)
    formats = item.get_prop("data", "formats")
    if len(formats) == 1 and formats[0] != '*':
        if not value.endswith('.' + formats[0]) and len(value) > 0:
            return value + '.' + formats[0]
    return value
Ejemplo n.º 19
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 def get_string_value(self, instance):
     """Override DataItem method"""
     value = self.get_value(instance)
     choices = self.get_prop_value("data", instance, "choices")
     #print "ShowChoiceWidget:", choices, value
     for choice in choices:
         if choice[0] == value:
             return to_text_string(choice[1])
     else:
         return DataItem.get_string_value(self, instance)
Ejemplo n.º 20
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 def get_string_value(self, instance):
     """Override DataItem method"""
     value = self.get_value(instance)
     choices = self.get_prop_value("data", instance, "choices")
     #print "ShowChoiceWidget:", choices, value
     for choice in choices:
         if choice[0] == value:
             return to_text_string(choice[1])
     else:
         return DataItem.get_string_value(self, instance)
Ejemplo n.º 21
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 def closeEvent(self, event):
     global _figures, _current_fig, _current_axes
     figure_title = to_text_string(self.windowTitle())
     if _figures.pop(figure_title) == _current_fig:
         _current_fig = None
         _current_axes = None
     self.itemlist.close()
     self.contrast.close()
     self.xcsw.close()
     self.ycsw.close()
     event.accept()
Ejemplo n.º 22
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 def closeEvent(self, event):
     global _figures, _current_fig, _current_axes
     figure_title = to_text_string(self.windowTitle())
     if _figures.pop(figure_title) == _current_fig:
         _current_fig = None
         _current_axes = None
     self.itemlist.close()
     self.contrast.close()
     self.xcsw.close()
     self.ycsw.close()
     event.accept()
Ejemplo n.º 23
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 def get(self):
     """Override AbstractDataSetWidget method"""
     value = self.item.get()
     old_value = to_text_string(self.value())
     if value is not None:
         if isinstance(value, QColor):  # if item is a ColorItem object
             value = value.name()
         uvalue = utf8_to_unicode(value)
         if uvalue != old_value:
             self.edit.setText(utf8_to_unicode(value))
     else:
         self.line_edit_changed(value)
Ejemplo n.º 24
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 def save_widget(self, fname):
     """Grab widget's window and save it to filename (*.png, *.pdf)"""
     fname = to_text_string(fname)
     if fname.lower().endswith('.pdf'):
         printer = QPrinter()
         printer.setOutputFormat(QPrinter.PdfFormat)
         printer.setOrientation(QPrinter.Landscape)
         printer.setOutputFileName(fname)
         printer.setCreator('guidata')
         self.print_(printer)
     elif fname.lower().endswith('.png'):
         pixmap = QPixmap.grabWidget(self)
         pixmap.save(fname, 'PNG')
     else:
         raise RuntimeError(_("Unknown file extension"))
Ejemplo n.º 25
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 def line_edit_changed(self, qvalue):
     """QLineEdit validator"""
     value = self.item.from_string(to_text_string(qvalue))
     if not self.item.check_value(value):
         self.edit.setStyleSheet("background-color:rgb(255, 175, 90);")
     else:
         self.edit.setStyleSheet("")
         cb = self.item.get_prop_value("display", "callback", None)
         if cb is not None:
             if self.build_mode:
                 self.set()
             else:
                 self.parent_layout.update_dataitems()
             cb(self.item.instance, self.item.item, value)
             self.parent_layout.update_widgets(except_this_one=self)
     self.update(value)
Ejemplo n.º 26
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 def line_edit_changed(self, qvalue):
     """QLineEdit validator"""
     value = self.item.from_string(to_text_string(qvalue))
     if not self.item.check_value(value):
         self.edit.setStyleSheet("background-color:rgb(255, 175, 90);")
     else:
         self.edit.setStyleSheet("")
         cb = self.item.get_prop_value("display", "callback", None)
         if cb is not None:
             if self.build_mode:
                 self.set()
             else:
                 self.parent_layout.update_dataitems()
             cb(self.item.instance, self.item.item, value)
             self.parent_layout.update_widgets(except_this_one=self)
     self.update(value)
Ejemplo n.º 27
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def imwrite(fname, arr, ext=None, dtype=None, max_range=None, **kwargs):
    """Save a NumPy array to an image filename `fname`.
    
    If `to_grayscale` is True, convert RGB images to grayscale
    The `ext` (optional) argument is a string that specifies the file extension
    which defines the input format: when not specified, the input format is 
    guessed from filename.
    If `max_range` is True, array data is scaled to fit the `dtype` (or data 
    type itself if `dtype` is None) dynamic range
    Warning: option `max_range` changes data in place"""
    if not is_text_string(fname):
        fname = to_text_string(fname)  # in case filename is a QString instance
    if ext is None:
        _base, ext = osp.splitext(fname)
    if max_range:
        arr = scale_data_to_dtype(arr, arr.dtype if dtype is None else dtype)
    iohandler.get_writefunc(ext)(fname, arr, **kwargs)
Ejemplo n.º 28
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def imread(fname, ext=None, to_grayscale=False):
    """Return a NumPy array from an image filename `fname`.
    
    If `to_grayscale` is True, convert RGB images to grayscale
    The `ext` (optional) argument is a string that specifies the file extension
    which defines the input format: when not specified, the input format is 
    guessed from filename."""
    if not is_text_string(fname):
        fname = to_text_string(fname)  # in case filename is a QString instance
    if ext is None:
        _base, ext = osp.splitext(fname)
    arr = iohandler.get_readfunc(ext)(fname)
    if to_grayscale and arr.ndim == 3:
        # Converting to grayscale
        return arr[..., :4].mean(axis=2)
    else:
        return arr
Ejemplo n.º 29
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def imread(fname, ext=None, to_grayscale=False):
    """Return a NumPy array from an image filename `fname`.
    
    If `to_grayscale` is True, convert RGB images to grayscale
    The `ext` (optional) argument is a string that specifies the file extension
    which defines the input format: when not specified, the input format is 
    guessed from filename."""
    if not is_text_string(fname):
        fname = to_text_string(fname) # in case filename is a QString instance
    if ext is None:
        _base, ext = osp.splitext(fname)
    arr = iohandler.get_readfunc(ext)(fname)
    if to_grayscale and arr.ndim == 3:
        # Converting to grayscale
        return arr[..., :4].mean(axis=2)
    else:
        return arr
Ejemplo n.º 30
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def imwrite(fname, arr, ext=None, dtype=None, max_range=None, **kwargs):
    """Save a NumPy array to an image filename `fname`.
    
    If `to_grayscale` is True, convert RGB images to grayscale
    The `ext` (optional) argument is a string that specifies the file extension
    which defines the input format: when not specified, the input format is 
    guessed from filename.
    If `max_range` is True, array data is scaled to fit the `dtype` (or data 
    type itself if `dtype` is None) dynamic range
    Warning: option `max_range` changes data in place"""
    if not is_text_string(fname):
        fname = to_text_string(fname) # in case filename is a QString instance
    if ext is None:
        _base, ext = osp.splitext(fname)
    if max_range:
        arr = scale_data_to_dtype(arr, arr.dtype if dtype is None else dtype)
    iohandler.get_writefunc(ext)(fname, arr, **kwargs)
Ejemplo n.º 31
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 def format_string(self, instance, value, fmt, func):
     """Override DataItem method"""
     larg = self.get_prop_value("display", instance, "large", False)
     fmt = self.get_prop_value("display", instance, "format", "%s")
     unit = self.get_prop_value("display", instance, "unit", "")
     v = func(value)        
     if larg:
         text = "= ["
         for flt in v[:-1]:
             text += fmt % flt + "; "
         text += fmt % v[-1] + "]"
     else:
         text = "~= " + fmt % v.mean()
         text += " [" + fmt % v.min()
         text += " .. " + fmt % v.max()
         text += "]"            
     text += " %s" % unit
     return to_text_string(text)
Ejemplo n.º 32
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 def format_string(self, instance, value, fmt, func):
     """Override DataItem method"""
     larg = self.get_prop_value("display", instance, "large", False)
     fmt = self.get_prop_value("display", instance, "format", "%s")
     unit = self.get_prop_value("display", instance, "unit", "")
     v = func(value)
     if larg:
         text = "= ["
         for flt in v[:-1]:
             text += fmt % flt + "; "
         text += fmt % v[-1] + "]"
     else:
         text = "~= " + fmt % v.mean()
         text += " [" + fmt % v.min()
         text += " .. " + fmt % v.max()
         text += "]"
     text += " %s" % unit
     return to_text_string(text)
Ejemplo n.º 33
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 def save_widget(self, fname):
     """Grab widget's window and save it to filename (\*.png, \*.pdf)"""
     fname = to_text_string(fname)
     if fname.lower().endswith('.pdf'):
         printer = QPrinter()
         printer.setOutputFormat(QPrinter.PdfFormat)
         printer.setOrientation(QPrinter.Landscape)
         printer.setOutputFileName(fname)
         printer.setCreator('guidata')
         self.print_(printer)
     elif fname.lower().endswith('.png'):
         if PYQT5:
             pixmap = self.grab()
         else:
             pixmap = QPixmap.grabWidget(self)
         pixmap.save(fname, 'PNG')
     else:
         raise RuntimeError(_("Unknown file extension"))
Ejemplo n.º 34
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def getexistingdirectory(parent=None, caption='', basedir='',
                         options=QFileDialog.ShowDirsOnly):
    """Wrapper around QtGui.QFileDialog.getExistingDirectory static method
    Compatible with PyQt >=v4.4 (API #1 and #2) and PySide >=v1.0"""
    # Calling QFileDialog static method
    if sys.platform == "win32":
        # On Windows platforms: redirect standard outputs
        _temp1, _temp2 = sys.stdout, sys.stderr
        sys.stdout, sys.stderr = None, None
    try:
        result = QFileDialog.getExistingDirectory(parent, caption, basedir,
                                                  options)
    finally:
        if sys.platform == "win32":
            # On Windows platforms: restore standard outputs
            sys.stdout, sys.stderr = _temp1, _temp2
    if not is_text_string(result):
        # PyQt API #1
        result = to_text_string(result)
    return result
Ejemplo n.º 35
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def getexistingdirectory(parent=None,
                         caption='',
                         basedir='',
                         options=QFileDialog.ShowDirsOnly):
    """Wrapper around QtGui.QFileDialog.getExistingDirectory static method
    Compatible with PyQt >=v4.4 (API #1 and #2) and PySide >=v1.0"""
    # Calling QFileDialog static method
    if sys.platform == "win32":
        # On Windows platforms: redirect standard outputs
        _temp1, _temp2 = sys.stdout, sys.stderr
        sys.stdout, sys.stderr = None, None
    try:
        result = QFileDialog.getExistingDirectory(parent, caption, basedir,
                                                  options)
    finally:
        if sys.platform == "win32":
            # On Windows platforms: restore standard outputs
            sys.stdout, sys.stderr = _temp1, _temp2
    if not is_text_string(result):
        # PyQt API #1
        result = to_text_string(result)
    return result
Ejemplo n.º 36
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def exec_image_save_dialog(parent,
                           data,
                           template=None,
                           basedir='',
                           app_name=None):
    """
    Executes an image save dialog box (QFileDialog.getSaveFileName)
        * parent: parent widget (None means no parent)
        * data: image pixel array data
        * template: image template (pydicom dataset) for DICOM files
        * basedir: base directory ('' means current directory)
        * app_name (opt.): application name (used as a title for an eventual 
          error message box in case something goes wrong when saving image)
    
    Returns filename if dialog is accepted, None otherwise
    """
    saved_in, saved_out, saved_err = sys.stdin, sys.stdout, sys.stderr
    sys.stdout = None
    filename, _filter = getsavefilename(
        parent, _("Save as"), basedir,
        io.iohandler.get_filters('save', dtype=data.dtype, template=template))
    sys.stdin, sys.stdout, sys.stderr = saved_in, saved_out, saved_err
    if filename:
        filename = to_text_string(filename)
        kwargs = {}
        if osp.splitext(filename)[1].lower() == '.dcm':
            kwargs['template'] = template
        try:
            io.imwrite(filename, data, **kwargs)
            return filename
        except Exception as msg:
            import traceback
            traceback.print_exc()
            QMessageBox.critical(parent,
                 _('Error') if app_name is None else app_name,
                 (_("%s could not be written:") % osp.basename(filename))+\
                 "\n"+str(msg))
            return
Ejemplo n.º 37
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    def get_string_value(self, instance):
        """
        Return a formatted unicode representation of the item's value
        obeying 'display' or 'repr' properties
        """
        value = self.get_value(instance)
        repval = self.get_prop_value("display", instance, "repr", None)
        if repval is not None:
            return repval
        else:
            fmt = self.get_prop_value("display", instance, "format", "%s")
            func = self.get_prop_value("display", instance, "func", lambda x:x)
            if isinstance(fmt, collections.Callable) and value is not None:
                return fmt(func(value))
            elif is_text_string(fmt):
                # This is only necessary with Python 2: converting to unicode
                fmt = to_text_string(fmt)

            if value is not None:
                text = self.format_string(instance, value, fmt, func)
            else:
                text = ""
            return text
Ejemplo n.º 38
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    def get_string_value(self, instance):
        """
        Return a formatted unicode representation of the item's value
        obeying 'display' or 'repr' properties
        """
        value = self.get_value(instance)
        repval = self.get_prop_value("display", instance, "repr", None)
        if repval is not None:
            return repval
        else:
            fmt = self.get_prop_value("display", instance, "format", "%s")
            func = self.get_prop_value("display", instance, "func",
                                       lambda x: x)
            if isinstance(fmt, collections.Callable) and value is not None:
                return fmt(func(value))
            elif is_text_string(fmt):
                # This is only necessary with Python 2: converting to unicode
                fmt = to_text_string(fmt)

            if value is not None:
                text = self.format_string(instance, value, fmt, func)
            else:
                text = ""
            return text
Ejemplo n.º 39
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 def __init__(self, label, image, rect, function):
     self.label = to_text_string(label)
     self.image = image
     self.rect = rect
     self.func = function
Ejemplo n.º 40
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 def __get_text(self):
     """Get QTextEdit text, replacing UTF-8 EOL chars by os.linesep"""
     return to_text_string(self.edit.toPlainText()).replace('\u2029',
                                                            os.linesep)
Ejemplo n.º 41
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 def check(self):
     """Override AbstractDataSetWidget method"""
     value = self.item.from_string(to_text_string(self.edit.text()))
     return self.item.check_value(value)
Ejemplo n.º 42
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 def value(self):
     return to_text_string(self.edit.text())
Ejemplo n.º 43
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 def add_image_from_file(self, filename):
     image = ImageParam()
     image.title = to_text_string(filename)
     image.data = io.imread(filename, to_grayscale=True)
     image.height, image.width = image.data.shape
     self.add_image(image)
Ejemplo n.º 44
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 def child_title(self, item):
     """Return data item title combined with QApplication title"""
     app_name = QApplication.applicationName()
     if not app_name:
         app_name = to_text_string(self.title())
     return "%s - %s" % ( app_name, item.label() )
Ejemplo n.º 45
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 def get_plain_text(self):
     return to_text_string(self.text.toPlainText())
Ejemplo n.º 46
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 def from_string(self, value):
     """Override DataItem method"""
     # QString -> str
     return to_text_string(value)
Ejemplo n.º 47
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 def add_image_from_file(self, filename):
     image = ImageParam()
     image.title = to_text_string(filename)
     image.data = io.imread(filename, to_grayscale=True)
     image.height, image.width = image.data.shape
     self.add_image(image)
Ejemplo n.º 48
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def _qfiledialog_wrapper(attr,
                         parent=None,
                         caption='',
                         basedir='',
                         filters='',
                         selectedfilter='',
                         options=None):
    if options is None:
        options = QFileDialog.Options(0)
    try:
        # PyQt <v4.6 (API #1)
        from guidata.qt.QtCore import QString
    except ImportError:
        # PySide or PyQt >=v4.6
        QString = None  # analysis:ignore
    tuple_returned = True
    try:
        # PyQt >=v4.6
        func = getattr(QFileDialog, attr + 'AndFilter')
    except AttributeError:
        # PySide or PyQt <v4.6
        func = getattr(QFileDialog, attr)
        if QString is not None:
            selectedfilter = QString()
            tuple_returned = False

    # Calling QFileDialog static method
    if sys.platform == "win32":
        # On Windows platforms: redirect standard outputs
        _temp1, _temp2 = sys.stdout, sys.stderr
        sys.stdout, sys.stderr = None, None
    try:
        result = func(parent, caption, basedir, filters, selectedfilter,
                      options)
    except TypeError:
        # The selectedfilter option (`initialFilter` in Qt) has only been
        # introduced in Jan. 2010 for PyQt v4.7, that's why we handle here
        # the TypeError exception which will be raised with PyQt v4.6
        # (see Issue 960 for more details)
        result = func(parent, caption, basedir, filters, options)
    finally:
        if sys.platform == "win32":
            # On Windows platforms: restore standard outputs
            sys.stdout, sys.stderr = _temp1, _temp2

    # Processing output
    if tuple_returned:
        # PySide or PyQt >=v4.6
        output, selectedfilter = result
    else:
        # PyQt <v4.6 (API #1)
        output = result
    if QString is not None:
        # PyQt API #1: conversions needed from QString/QStringList
        selectedfilter = to_text_string(selectedfilter)
        if isinstance(output, QString):
            # Single filename
            output = to_text_string(output)
        else:
            # List of filenames
            output = [to_text_string(fname) for fname in output]

    # Always returns the tuple (output, selectedfilter)
    return output, selectedfilter
Ejemplo n.º 49
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 def get_value_from_reader(self, reader):
     """Reads value from the reader object, inside the try...except 
     statement defined in the base item `deserialize` method"""
     return [to_text_string(fname, "utf-8")
             for fname in reader.read_sequence()]
Ejemplo n.º 50
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 def get_plain_text(self):
     return to_text_string(self.text.toPlainText())
Ejemplo n.º 51
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 def from_string(self, value):
     """Override DataItem method"""
     # QString -> str
     return to_text_string(value)
Ejemplo n.º 52
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 def __init__(self, label, image, rect, function):
     self.label = to_text_string(label)
     self.image = image
     self.rect = rect
     self.func = function
Ejemplo n.º 53
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 def get_value_from_reader(self, reader):
     """Reads value from the reader object, inside the try...except 
     statement defined in the base item `deserialize` method"""
     return [
         to_text_string(fname, "utf-8") for fname in reader.read_sequence()
     ]