本文介紹了如何在不影響 Pyqt5 中的小部件的情況下將背景圖像添加到主窗口的處理方法，對大家解決問題具有一定的參考價值，需要的朋友們下面隨著小編來一起學習吧！
問題描述
我想在我的主窗口中添加背景圖片而不更改其中按鈕的背景圖片，并且還需要保持寬高比
I would like to add a background image to my main window without changing the background image of pushbutton in it and also need to keep the aspect ratio
我試過了
self.centralWidget.setStyleSheet("background-image: url(The_Project_logo.png); background-repeat: no-repeat; background-position: center")
但這會改變所有小部件的背景圖像
but this changes the background images of all widgets
推薦答案
試試看:
from PyQt5.QtWidgets import *
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.centralwidget = QWidget()
self.setCentralWidget(self.centralwidget)
self.pushButton1 = QPushButton("Button 1", self.centralwidget)
self.pushButton2 = QPushButton("Button 2", self.centralwidget)
lay = QHBoxLayout(self.centralwidget)
lay.addWidget(self.pushButton1)
lay.addWidget(self.pushButton2)
stylesheet = """
MainWindow {
background-image: url("D:/_Qt/img/cat.jpg");
background-repeat: no-repeat;
background-position: center;
}
"""
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
app.setStyleSheet(stylesheet) # <---
window = MainWindow()
window.resize(640, 640)
window.show()
sys.exit(app.exec_())
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(400, 300)
self.centralWidget = QtWidgets.QWidget(MainWindow)
self.centralWidget.setObjectName("centralWidget")
self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.centralWidget)
self.horizontalLayout_2.setContentsMargins(11, 11, 11, 11)
self.horizontalLayout_2.setSpacing(6)
self.horizontalLayout_2.setObjectName("horizontalLayout_2")
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setSpacing(6)
self.horizontalLayout.setObjectName("horizontalLayout")
self.start_button = QtWidgets.QPushButton(self.centralWidget)
self.start_button.setObjectName("start_button")
self.horizontalLayout.addWidget(self.start_button)
self.stop_button = QtWidgets.QPushButton(self.centralWidget)
self.stop_button.setObjectName("stop_button")
self.horizontalLayout.addWidget(self.stop_button)
self.horizontalLayout_2.addLayout(self.horizontalLayout)
MainWindow.setCentralWidget(self.centralWidget)
self.menuBar = QtWidgets.QMenuBar(MainWindow)
self.menuBar.setGeometry(QtCore.QRect(0, 0, 400, 26))
self.menuBar.setObjectName("menuBar")
MainWindow.setMenuBar(self.menuBar)
self.mainToolBar = QtWidgets.QToolBar(MainWindow)
self.mainToolBar.setObjectName("mainToolBar")
MainWindow.addToolBar(QtCore.Qt.TopToolBarArea, self.mainToolBar)
self.statusBar = QtWidgets.QStatusBar(MainWindow)
self.statusBar.setObjectName("statusBar")
MainWindow.setStatusBar(self.statusBar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.start_button.setText(_translate("MainWindow", "Start"))
self.stop_button.setText(_translate("MainWindow", "Stop"))
class MyWindow(QtWidgets.QMainWindow, Ui_MainWindow):
def __init__(self):
super().__init__()
self.setupUi(self)
stylesheet = """
QMainWindow {
background-image: url("D:/_Qt/img/cat.jpg");
background-repeat: no-repeat;
background-position: center;
}
"""
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
app.setStyleSheet(stylesheet)
w = MyWindow()
# MainWindow = QtWidgets.QMainWindow()
# ui = Ui_MainWindow()
# ui.setupUi(MainWindow)
# MainWindow.show()
w.show()
sys.exit(app.exec_())
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