mirror of
https://github.com/muziing/PySide6-Code-Tutorial.git
synced 2025-01-30 14:22:53 +08:00
65 lines
2.5 KiB
Python
65 lines
2.5 KiB
Python
|
import sys
|
|||
|
|
|
|||
|
|
from PySide6 import QtCore, QtWidgets
|
|||
|
|
from PySide6.QtCore import Qt
|
|||
|
|
|
|||
|
|
"""
|
|||
|
|
QAbstractScrollArea 滚动条显示策略
|
|||
|
|
|
|||
|
|
滚动条显示策略由 Qt.ScrollBarPolicy 列出，具体如下：
|
|||
|
|
https://doc.qt.io/qt-6/qt.html#ScrollBarPolicy-enum
|
|||
|
|
Qt.ScrollBarAsNeeded 只有当内容太大而无法容纳时，QAbstractScrollArea 才显示滚动条。此为默认值
|
|||
|
|
Qt.ScrollBarAlwaysOff QAbstractScrollArea 永不显示滚动条
|
|||
|
|
Qt.ScrollBarAlwaysOn QAbstractScrollArea 总显示一个滚动条。此属性在具有瞬态滚动条的操作系统上被忽略
|
|||
|
|
|
|||
|
|
即使不显示滚动条，也仍可通过键盘方向键、鼠标滚轮等控制滚动区域滚动
|
|||
|
|
|
|||
|
|
.setHorizontalScrollBarPolicy(Qt.ScrollBarPolicy) 设置水平滚动条策略
|
|||
|
|
.setVerticalScrollBarPolicy(Qt.ScrollBarPolicy) 设置垂直滚动条策略
|
|||
|
|
.horizontalScrollBarPolicy() -> Qt.ScrollBarPolicy 获取水平滚动条策略
|
|||
|
|
.verticalScrollBarPolicy() -> Qt.ScrollBarPolicy 获取垂直滚动条策略
|
|||
|
|
"""
|
|||
|
|
|
|||
|
|
|
|||
|
|
class MyWidget(QtWidgets.QWidget):
|
|||
|
|
def __init__(self, *args, **kwargs):
|
|||
|
|
super().__init__(*args, **kwargs)
|
|||
|
|
self.setWindowTitle("空白测试模板")
|
|||
|
|
self.resize(800, 600)
|
|||
|
|
self.setup_ui()
|
|||
|
|
self.test_01()
|
|||
|
|
|
|||
|
|
def setup_ui(self) -> None:
|
|||
|
|
"""设置界面"""
|
|||
|
|
self.pte = QtWidgets.QPlainTextEdit(self)
|
|||
|
|
self.pte.resize(400, 250)
|
|||
|
|
|
|||
|
|
button_1 = QtWidgets.QPushButton("增加文本", self)
|
|||
|
|
button_1.move(500, 80)
|
|||
|
|
|
|||
|
|
@QtCore.Slot()
|
|||
|
|
def append_text():
|
|||
|
|
"""按钮的槽函数，用于为文本编辑器添加行"""
|
|||
|
|
self.pte.appendPlainText("PySide6\nPySide6")
|
|||
|
|
# 逐渐增加文本至编辑器无法全面显示时，体现滚动条策略的效果
|
|||
|
|
|
|||
|
|
button_1.clicked.connect(append_text) # type: ignore
|
|||
|
|
|
|||
|
|
def test_01(self) -> None:
|
|||
|
|
"""测试滚动条显示策略"""
|
|||
|
|
# 水平滚动条效果与垂直滚动条相仿，这里仅演示垂直滚动条
|
|||
|
|
|
|||
|
|
# 设置滚动条显示策略
|
|||
|
|
# self.pte.setVerticalScrollBarPolicy(Qt.ScrollBarAsNeeded) # 默认值，仅在需要时显示滚动条
|
|||
|
|
# self.pte.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff) # 任何情况都不显示滚动条
|
|||
|
|
self.pte.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOn) # 始终显示滚动条
|
|||
|
|
|
|||
|
|
print(self.pte.verticalScrollBarPolicy()) # 获取垂直滚动条策略
|
|||
|
|
|
|||
|
|
|
|||
|
|
if __name__ == "__main__":
|
|||
|
|
app = QtWidgets.QApplication(sys.argv)
|
|||
|
|
window = MyWidget()
|
|||
|
|
window.show()
|
|||
|
|
sys.exit(app.exec())
|