Python QCompleter.setWidget方法代码示例

# 需要导入模块: from PySide.QtGui import QCompleter [as 别名]
# 或者: from PySide.QtGui.QCompleter import setWidget [as 别名]
class CodeCompletionMode(Mode):
    """
    This mode provides code completion to the CodeEdit widget.

    The list of suggestion is supplied by a CodeCompletionModel.

    Code completion may use more than one completion model. The suggestions
    list is then filled model per model by beginning by the highest priority as
    long as the number of suggestions is lower than
    :attr:`pcef.modes.code_completion.CodeCompletion.minSuggestions`.

    For example, a python editor will use a smart completion model with a high
    priority and use the DocumentWordsCompletion model as a fallback system
    when the smart model fails to provide enough suggestions.

    The mode uses a QCompleter to provides display the list of suggestions.

    Code completion is triggered using ctrl+space or when there is at least
    three characters in the word being typed.
    """
    #: Mode identifier
    IDENTIFIER = "Code completion"

    #: Mode description
    DESCRIPTION = "Provides code completion though completion models"

    def __init__(self):
        super(CodeCompletionMode, self).__init__(
            self.IDENTIFIER, self.DESCRIPTION)
        self.thread_pool = QThreadPool()
        self.thread_pool.setMaxThreadCount(2)
        self.__cached_request = None
        self.__active_thread_count = 0
        self.__updating_models = False
        self.__timer = QTimer()

        #: Defines the min number of suggestions. This is used to know we should
        #  avoid using lower priority models.
        #  If there is at least minSuggestions in the suggestions list, we won't
        #  use other completion model.
        self.minSuggestions = 50

        #: Trigger key (automatically associated with the control modifier)
        self.triggerKey = Qt.Key_Space

        #: Number of chars needed to trigger the code completion
        self.nbTriggerChars = 1

        #: Tells if the completion should be triggered automatically (when
        #  len(wordUnderCursor) > nbTriggerChars )
        #  Default is True. Turning this option off might enhance performances
        #  and usability
        self.autoTrigger = True
        self.periodIsTrigger = True

        #: Show/Hide current suggestion tooltip
        self.displayTooltips = True

        self.__caseSensitivity = Qt.CaseSensitive
        #: The internal QCompleter
        self.__completer = QCompleter()
        # self.__completer.activated.connect(self._insertCompletion)
        self.__completer.highlighted.connect(self._onHighlighted)
        self.__completer.activated.connect(self._insertCompletion)
        self.__prev_txt_len = 0
        #: List of completion models
        self._models = []
        self.__tooltips = {}

    def __del__(self):
        self.__completer.setWidget(None)
        self.__completer = None

    def addModel(self, model):
        """
        Adds a completion model to the completion models list.

        :param model: CompletionModel to add
        """
        self._models.append(model)
        self._models = sorted(self._models, key=lambda mdl: mdl.priority,
                              reverse=True)

    def install(self, editor):
        """
        Setup the completer with the CodeEdit.

        :param editor: CodeEditorWidget instance
        """
        super(CodeCompletionMode, self).install(editor)
        self.__completer.setWidget(editor.codeEdit)
        self.__completer.setCaseSensitivity(self.__caseSensitivity)
        self.__completer.setCompletionMode(QCompleter.PopupCompletion)

    def __set_case(self, case):
        if case != self.__caseSensitivity:
            self.__caseSensitivity = case
            self.__completer.setCaseSensitivity(case)

    def __get_case(self):
#.........这里部分代码省略.........

# 需要导入模块: from PySide.QtGui import QCompleter [as 别名]
# 或者: from PySide.QtGui.QCompleter import setWidget [as 别名]
class CommandBox(QtGui.QPlainTextEdit, object):
    newCommand = QtCore.Signal(str)

    def reset_history(self):
        self.history_index = len(self.history)

    def __init__(self, history, commands):
        self.history_index = 0
        self.history = history
        self.reset_history()
        super(CommandBox, self).__init__()

        #Autocompleter
        self.completer = QCompleter([BOT_PREFIX + name for name in commands], self)
        self.completer.setCaseSensitivity(Qt.CaseInsensitive)
        self.completer.setWidget(self)
        self.completer.activated.connect(self.onAutoComplete)
        self.autocompleteStart = None

    def onAutoComplete(self, text):
        #Select the text from autocompleteStart until the current cursor
        cursor = self.textCursor()
        cursor.setPosition(0, cursor.KeepAnchor)
        #Replace it with the selected text
        cursor.insertText(text)
        self.autocompleteStart = None

    #noinspection PyStringFormat
    def keyPressEvent(self, *args, **kwargs):
        event = args[0]
        key = event.key()
        ctrl = event.modifiers() == QtCore.Qt.ControlModifier

        # don't disturb the completer behavior
        if self.completer.popup().isVisible() and key in (Qt.Key_Enter, Qt.Key_Return, Qt.Key_Tab, Qt.Key_Backtab):
            event.ignore()
            return

        if self.autocompleteStart is not None and not event.text().isalnum() and \
                not (key == Qt.Key_Backspace and self.textCursor().position() > self.autocompleteStart):
            self.completer.popup().hide()
            self.autocompleteStart = None

        if key == Qt.Key_Space and ctrl:
            #Pop-up the autocompleteList
            rect = self.cursorRect(self.textCursor())
            rect.setSize(QtCore.QSize(100, 150))
            self.autocompleteStart = self.textCursor().position()
            self.completer.complete(rect)  # The popup is positioned in the next if block

        if self.autocompleteStart:
            prefix = self.toPlainText()
            cur = self.textCursor()
            cur.setPosition(self.autocompleteStart)

            self.completer.setCompletionPrefix(prefix)
            #Select the first one of the matches
            self.completer.popup().setCurrentIndex(self.completer.completionModel().index(0, 0))

        if key == Qt.Key_Up and ctrl:
            if self.history_index > 0:
                self.history_index -= 1
                self.setPlainText(BOT_PREFIX + '%s %s' % self.history[self.history_index])
                key.ignore()
                return
        elif key == Qt.Key_Down and ctrl:
            if self.history_index < len(self.history) - 1:
                self.history_index += 1
                self.setPlainText(BOT_PREFIX + '%s %s' % self.history[self.history_index])
                key.ignore()
                return
        elif key == QtCore.Qt.Key_Return and ctrl:
            self.newCommand.emit(self.toPlainText())
            self.reset_history()
        super(CommandBox, self).keyPressEvent(*args, **kwargs)

# 需要导入模块: from PySide.QtGui import QCompleter [as 别名]
# 或者: from PySide.QtGui.QCompleter import setWidget [as 别名]
class EditorCodeCompletion(QTextEdit):
    def __init__(self, path_dict):
        super(EditorCodeCompletion, self).__init__()  
        self.m_completer = QCompleter(self)
        self.m_completer.setWidget(self)
        words = []
        
        self.flag_open_angle_bracket = False
        self.tag_name = ""
        
        try:
            f = open(path_dict,"r")
            for word in f:
                words.append(word.strip())
            f.close()
        except IOError:
            print ("dictionary not in anticipated location")
       
        model = QStringListModel(words, self.m_completer)
        
        self.m_completer.setModel(model)
        self.m_completer.setCompletionMode(QCompleter.PopupCompletion)
        self.m_completer.activated.connect(self.insertCompletion)

    def insertCompletion (self, completion):
        cursor = self.textCursor()
        cursor.beginEditBlock()
        cursor.movePosition(QTextCursor.Left)
        cursor.movePosition(QTextCursor.EndOfWord)
        extra = len(self.m_completer.completionPrefix())
        cursor.insertText(completion[extra:])
        self.setTextCursor(cursor)
        cursor.endEditBlock()

    def __insertTag(self):
        '''
        inserts the corresponding closing tag to an opening xml tag
        '''
        self.find('<', QTextDocument.FindBackward)
        tc = self.textCursor()        
        tc.select(QTextCursor.WordUnderCursor)
        txt = '' if self.__stringHasBracket(tc.selectedText().replace(' ', '')) else tc.selectedText()
        txt = '</' + txt + '>'
        
        self.find('>')    
        tc = self.textCursor()
        tc.clearSelection()
        
        tc.insertText(txt) 
        tc.movePosition(QTextCursor.Left, QTextCursor.MoveAnchor, len(txt))
        self.setTextCursor(tc)
    
    def __stringHasBracket(self, s):
        return '<' in s or '>' in s

    def __insertClosingTag(self, event):
        operation_sys = sys.platform 
        flag = "linux" in operation_sys        
        if flag :
            self.__insertClosingTag_Unix(event)
        else:
            self.__insertClosingTag_Win(event)
        
    def __insertClosingTag_Unix(self, event):
        '''
        inserts a closing tag after the closing bracket of open tag
        @param key: keyboard input value as int
        '''
        if self.flag_open_angle_bracket :
            if event.key() == 47 : # /
                print ("/")
                self.flag_open_angle_bracket = False 
            elif event.key() == 62  :  # >
                print (">")
                self.__insertTag()
                self.flag_open_angle_bracket = False  
        elif event.key() == 60  :  # <
            print ("<")
            self.flag_open_angle_bracket = True
 
    def __insertClosingTag_Win(self, event) :
        if self.flag_open_angle_bracket :
            if event.modifiers() & Qt.ShiftModifier :
                if event.key() == 55 : # /
                    print ("/")
                    self.flag_open_angle_bracket = False             
                elif event.key() == 60 : # > 
                    print (">")
                    self.__insertTag()
                    self.flag_open_angle_bracket = False  
        elif event.key() == 60  :  # <
            print ("<")
            self.flag_open_angle_bracket = True    
 
    def keyPressEvent(self, event):
        '''
        checks keyboard input to set closing tag or start code completion 
        '''        
        if self.m_completer.popup().isVisible() :
            if event.key() == Qt.Key_Enter or event.key() == Qt.Key_Return or event.key() == Qt.Key_Tab or event.key() == Qt.Key_Escape :
#.........这里部分代码省略.........