PyQt5可滚动标签 – 获取工具提示持续时间

在这篇文章中，我们将看到如何获得滚动标签的工具提示持续时间，可滚动标签是一个具有滚动功能的标签。

实现的步骤 –

1.创建一个继承于QScrollArea的新类

2.在该类中创建垂直布局

3.创建一个标签，使其成为多行，并将其添加到布局中

5.覆盖标签的setText和text方法

6.在主窗口类中创建该类的对象，并为其设置文本

7.在setToolTip方法的帮助下为该对象添加工具提示

8.在setToolTipDuration方法的帮助下，为对象添加工具提示持续时间

9.在toolTipDuration方法的帮助下，获得对象的tooltip持续时间

10.创建另一个标签来显示持续时间

下面是实现方法

# importing libraries
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys
  
  
# class for scrollable label
class ScrollLabel(QScrollArea):
  
    # constructor
    def __init__(self, *args, **kwargs):
        QScrollArea.__init__(self, *args, **kwargs)
  
        # making widget resizable
        self.setWidgetResizable(True)
  
        # making qwidget object
        content = QWidget(self)
        self.setWidget(content)
  
        # vertical box layout
        lay = QVBoxLayout(content)
  
        # creating label
        self.label = QLabel(content)
  
        # making label multi-line
        self.label.setWordWrap(True)
  
        # adding label to the layout
        lay.addWidget(self.label)
  
    # the setText method
    def setText(self, text):
        # setting text to the label
        self.label.setText(text)
  
    # getting text method
    def text(self):
        # getting text of the label
        get_text = self.label.text()
  
        # return the text
        return get_text
  
  
class Window(QMainWindow):
  
    def __init__(self):
        super().__init__()
  
        # setting title
        self.setWindowTitle("Python ")
  
        # setting geometry
        self.setGeometry(100, 100, 600, 400)
  
        # calling method
        self.UiComponents()
  
        # showing all the widgets
        self.show()
  
    # method for widgets
    def UiComponents(self):
        # text to show in label
        text = "There are so many options provided by Python to develop GUI " \
               " There are so many options provided by Python to develop GUI" \
               " There are so many options provided by Python to develop GUI"
  
        # creating scroll label
        label = ScrollLabel(self)
  
        # setting text to the label
        label.setText(text)
  
        # setting geometry
        label.setGeometry(100, 100, 150, 80)
  
        # setting tool tip
        label.setToolTip("It is tool tip")
  
        # setting tool tip duration
        label.setToolTipDuration(1000)
  
        # getting duration
        duration = label.toolTipDuration()
  
        # creating another label to show the duration
        result = QLabel("Duration : " + str(duration), self)
  
        # setting geometry to the label
        result.setGeometry(150, 200, 200, 30)
  
  
  
# create pyqt5 app
App = QApplication(sys.argv)
  
# create the instance of our Window
window = Window()
  
# start the app
sys.exit(App.exec())

输出 :