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October 29, 2017 00:12
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Example of QSyntaxHighlighter
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| import html | |
| from PyQt5.QtCore import * | |
| from PyQt5.QtGui import * | |
| from PyQt5.QtWidgets import * | |
| def format(color, style=''): | |
| _color = QColor() | |
| _color.setNamedColor(color) | |
| _format = QTextCharFormat() | |
| _format.setForeground(_color) | |
| return _format | |
| class PythonHighlighter(QSyntaxHighlighter): | |
| formats = [('red', 30, 15), ('blue', 60, 125)] | |
| def __init__(self, *args, **kwargs): | |
| QSyntaxHighlighter.__init__(self, *args, **kwargs) | |
| def highlightBlock(self, text): | |
| for color, start, length in self.formats: | |
| self.setFormat(start, length, format(color)) | |
| self.setCurrentBlockState(0) | |
| text = """<!DOCTYPE html> | |
| <html> | |
| <body> | |
| <div id="LiveArea">gggg </div> | |
| <p><font size="3" | |
| color="red">This is some text!</font></p> | |
| <p><font size="2" color="blue">This is some text!</font></p> | |
| <p><font face="verdana" color="green">This is some text!</font></p> | |
| <p><strong>Note:</strong> The font element is not supported in HTML5. Use CSS instead.</p> | |
| </body> | |
| </html>""" | |
| if __name__ == '__main__': | |
| import sys | |
| app = QApplication(sys.argv) | |
| w = QTextEdit() | |
| H = PythonHighlighter(w.document()) | |
| w.append(html.escape(text)) | |
| w.show() | |
| sys.exit(app.exec_()) |
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