Basic Widgets : QLabel
Remarks:
A QLabel object acts as a placeholder to display non-editable text,image, or a animated GIF. It can also be used as a mnemonic key for other widgets.
In this example, QLabel objects l2 and l4 have the caption containing hyperlink. setOpenExternalLinks for l2 is set to true. Hence, if this label is clicked, the associated URL will open in the browser. linkHovered signal of l4 is connected to hovered() function. So, whenever the mouse hovers over it, the function will be executed.
QPixmap object prepares offscreen image from python.jpg file. It is displayed as label l3 by using setPixmap() method
Plain text, hyperlink or rich text can also be displayed in QLabel.
In QLabel most of the basic HTML tags are allowed. For Example : h1,h2,h3,font,span,etc
QLabel example with text, hyperlink and image
Following is the example of QLabel that displays use of texts,images and hyperlinks.
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
def window():
app = QApplication(sys.argv)
win = QWidget()
l1 = QLabel()
l2 = QLabel()
l3 = QLabel()
l4 = QLabel()
l1.setText("<h1>Hello World</h1>")
l4.setText("<b>Hello Stack OverFlow</b>")
l2.setText("<font color='red'>Welcome To Stack Overflow Documentation</font>")
l1.setAlignment(Qt.AlignCenter)
l3.setAlignment(Qt.AlignCenter)
l4.setAlignment(Qt.AlignRight)
l3.setPixmap(QPixmap("python.jpg"))
vbox = QVBoxLayout()
vbox.addWidget(l1)
vbox.addStretch()
vbox.addWidget(l2)
vbox.addStretch()
vbox.addWidget(l3)
vbox.addStretch()
vbox.addWidget(l4)
l1.setOpenExternalLinks(True)
l4.linkActivated.connect(clicked)
l2.linkHovered.connect(hovered)
l1.setTextInteractionFlags(Qt.TextSelectableByMouse)
win.setLayout(vbox)
win.setWindowTitle("PyQt4 QLabel Demo")
win.show()
sys.exit(app.exec_())
def hovered():
print ("Come'On Click ME")
def clicked():
print ("You Clicked Me")
if __name__ == '__main__':
window()
The code outputs the following result:
Contributors
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