57 lines
1.9 KiB
Python
57 lines
1.9 KiB
Python
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import sys
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from PyQt5.QtGui import QTextCharFormat,QTextDocument, QTextCursor
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from PyQt5.QtWidgets import (QApplication, QMainWindow, QTextEdit,
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QToolBar, QLineEdit, QPushButton, QColorDialog, QHBoxLayout, QWidget)
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class TextEdit(QMainWindow):
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def __init__(self, parent=None):
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super(TextEdit, self).__init__(parent)
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self.textEdit = QTextEdit(self)
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self.setCentralWidget(self.textEdit)
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widget = QWidget(self)
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vb = QHBoxLayout(widget)
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vb.setContentsMargins(0, 0, 0, 0)
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self.findText = QLineEdit(self)
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self.findText.setText('self')
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findBtn = QPushButton('高亮',self)
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findBtn.clicked.connect(self.highlight)
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vb.addWidget(self.findText)
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vb.addWidget(findBtn)
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tb = QToolBar(self)
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tb.addWidget(widget)
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def setText(self,text):
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self.textEdit.setPlainText(text)
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def mergeFormatOnWordOrSelection(self, format):
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cursor = self.textEdit.textCursor()
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if not cursor.hasSelection():
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cursor.select(QTextCursor.WordUnderCursor)
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cursor.mergeCharFormat(format)
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self.textEdit.mergeCurrentCharFormat(format)
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def highlight(self):
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text = self.findText.text()#输入框中的文字
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if not text:
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return
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col = QColorDialog.getColor(self.textEdit.textColor(), self)
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if not col.isValid():
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return
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fmt = QTextCharFormat()
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fmt.setForeground(col)
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#先把光标移动到开头
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self.textEdit.moveCursor(QTextCursor.Start)
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while self.textEdit.find(text,QTextDocument.FindWholeWords):#查找所有文字
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self.mergeFormatOnWordOrSelection(fmt)
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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textEdit = TextEdit()
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textEdit.resize(800, 600)
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textEdit.show()
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textEdit.setText(open(sys.argv[0],'rb').read().decode())
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sys.exit(app.exec_())
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