PyQt5 可滚动标签 - 检索工具提示文本

在本文中，我们将了解如何获取滚动标签的工具提示文本，当知道我们可以通过继承滚动类并在其中制作标签来制作可滚动标签时。滚动标签基本上是两个组合在一起的小部件，滚动区域充当基础小部件，标签充当此类的组件。

Steps for implementations –

1. Create a new class which inherits QScrollArea
2. Inside the class create vertical layout
3. Create a label and make it multi-line and add it to the layout
4. Create object of this class inside the main window class and setting text to it
5. Add tool tip to the object with the help of setToolTip method
6. Retrieve the tool tip text with the help of toolTip method
7. Create another label to show the tool tip text

编程需要懂一点英语

下面是实现

# 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")
  
        # getting the tool tip
        tip = label.toolTip()
  
        # creating another label to show the tool tip
        result = QLabel("Tool tip : " + tip, 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：