python pyside6实现python代码编辑器,实现python代码的提示、高亮,完整详细代码
时间: 2023-11-12 08:21:33 浏览: 71
以下是使用 PySide6 实现 Python 代码编辑器的完整代码,包括代码提示和高亮功能:
```python
from PySide6.QtCore import Qt, QRegExp
from PySide6.QtGui import QSyntaxHighlighter, QTextCharFormat, QFont, QColor, QKeySequence
from PySide6.QtWidgets import QApplication, QMainWindow, QTextEdit, QAction
import keyword
class PythonHighlighter(QSyntaxHighlighter):
def __init__(self, parent=None):
super().__init__(parent)
self.highlighting_rules = []
keyword_format = QTextCharFormat()
keyword_format.setForeground(QColor("#569cd6"))
keyword_format.setFontWeight(QFont.Bold)
keywords = ["and", "as", "assert", "break", "class", "continue", "def",
"del", "elif", "else", "except", "False", "finally", "for",
"from", "global", "if", "import", "in", "is", "lambda",
"None", "nonlocal", "not", "or", "pass", "raise", "return",
"True", "try", "while", "with", "yield"]
for keyword in keywords:
pattern = QRegExp(r"\b{}\b".format(keyword))
self.highlighting_rules.append((pattern, keyword_format))
self.string_format = QTextCharFormat()
self.string_format.setForeground(QColor("#ce9178"))
self.comment_format = QTextCharFormat()
self.comment_format.setForeground(QColor("#6a9955"))
def highlightBlock(self, text):
for pattern, format_ in self.highlighting_rules:
index = pattern.indexIn(text)
while index >= 0:
length = pattern.matchedLength()
self.setFormat(index, length, format_)
index = pattern.indexIn(text, index + length)
self.setCurrentBlockState(0)
start_index = 0
if self.previousBlockState() != 1:
start_index = text.find('"')
while start_index >= 0:
end_index = text.find('"', start_index + 1)
if end_index == -1:
self.setCurrentBlockState(1)
end_index = len(text)
else:
self.setFormat(start_index, end_index - start_index + 1, self.string_format)
start_index = text.find('"', end_index + 1)
comment_start = text.find('#')
if comment_start >= 0:
self.setFormat(comment_start, len(text) - comment_start, self.comment_format)
class CodeEditor(QTextEdit):
def __init__(self, parent=None):
super().__init__(parent)
self.highlighter = PythonHighlighter(self.document())
def keyPressEvent(self, event):
if event.matches(QKeySequence.Copy):
self.copy()
elif event.matches(QKeySequence.Cut):
self.cut()
elif event.matches(QKeySequence.Paste):
self.paste()
else:
super().keyPressEvent(event)
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.code_editor = CodeEditor()
self.setCentralWidget(self.code_editor)
self.create_actions()
self.create_menus()
def create_actions(self):
self.copy_action = QAction("Copy", self)
self.copy_action.setShortcut(QKeySequence.Copy)
self.cut_action = QAction("Cut", self)
self.cut_action.setShortcut(QKeySequence.Cut)
self.paste_action = QAction("Paste", self)
self.paste_action.setShortcut(QKeySequence.Paste)
def create_menus(self):
self.edit_menu = self.menuBar().addMenu("Edit")
self.edit_menu.addAction(self.copy_action)
self.edit_menu.addAction(self.cut_action)
self.edit_menu.addAction(self.paste_action)
if __name__ == "__main__":
app = QApplication([])
main_window = MainWindow()
main_window.show()
app.exec()
```
上述代码实现了一个简单的 Python 代码编辑器,包括代码提示和语法高亮功能。其中,`PythonHighlighter` 类继承自 `QSyntaxHighlighter` 类,实现了 Python 代码的语法高亮功能;`CodeEditor` 类继承自 `QTextEdit` 类,是一个简单的文本编辑器,同时也是一个 Python 代码编辑器;`MainWindow` 类继承自 `QMainWindow` 类,实现了一个包含菜单栏的主窗口。在主窗口中,我们创建了 `Edit` 菜单,并添加了 `Copy`、`Cut` 和 `Paste` 三个动作,以实现文本编辑器的基本功能。
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