Question

我想突出显示在PySide的QTextEdit中显示的文本中的一个单词，我发现PyQt的this answer非常好并且正常工作，但它不能处理来自PySide的QTextEdit。

有人知道PySide的问题在哪里吗？

这是我上面提到的答案中的代码：

from PyQt4 import QtGui
from PyQt4 import QtCore

class MyHighlighter(QtGui.QTextEdit):
    def __init__(self, parent=None):
        super(MyHighlighter, self).__init__(parent)
        # Setup the text editor
        text = """In this text I want to highlight this word and only this word.\n""" +\
        """Any other word shouldn't be highlighted"""
        self.setText(text)
        cursor = self.textCursor()
        # Setup the desired format for matches
        format = QtGui.QTextCharFormat()
        format.setBackground(QtGui.QBrush(QtGui.QColor("red")))
        # Setup the regex engine
        pattern = "word"
        regex = QtCore.QRegExp(pattern)
        # Process the displayed document
        pos = 0
        index = regex.indexIn(self.toPlainText(), pos)
        while (index != -1):
            # Select the matched text and apply the desired format
            cursor.setPosition(index)
            cursor.movePosition(QtGui.QTextCursor.EndOfWord, 1)
            cursor.mergeCharFormat(format)
            # Move to the next match
            pos = index + regex.matchedLength()
            index = regex.indexIn(self.toPlainText(), pos)

if __name__ == "__main__":
    import sys
    a = QtGui.QApplication(sys.argv)
    t = MyHighlighter()
    t.show()
    sys.exit(a.exec_())

它完全适用于PyQt，但当我将导入更改为PySide时，它会停止突出显示单词。

Answer 1

我发现在PySide中，方法 movePosition 需要3个参数，如果此方法如下所示，代码将是正确的：

cursor.movePosition(QtGui.QTextCursor.EndOfWord, QtGui.QTextCursor.KeepAnchor, 1)

在PySide.QTextEdit中突出显示文本

1 个答案: