在PySide6中(与PySide2和PyQt5相同)
我想将QMainWindow分为四个部分,每个部分都有一个用于显示图像的qScrollara
from PySide6.QtCore import *
from PySide6.QtGui import *
from PySide6.QtWidgets import *
import sys
import numpy as np
class MainWindow(QMainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.setupUi()
def setupUi(self, *args,**kwargs):
self.mainWindow = MainWindow
self.resize(800,600)
self.load()
def load(self):
internalWidget = QWidget()
gridLayout = QGridLayout(internalWidget)
internalWidget.setLayout(gridLayout)
self.setCentralWidget(internalWidget)
# row, column, rowSpan, columnSpan
config = [
[0, 0, 1, 1],
[0, 1, 1, 1],
[1, 0, 1, 1],
[1, 1, 1, 1],
]
for row, column, rowSpan, columnSpan in config:
# create scrollArea
scrollArea = QScrollArea()
scrollArea.setSizePolicy(QSizePolicy.Expanding,QSizePolicy.Expanding)
scrollArea.setViewportMargins(0,0,0,0)
scrollArea.setWidgetResizable(True)
gridLayout.setContentsMargins(0,0,0,0)
#########################random pixmap#####################################
arr = np.random.randint(0,255,(200+row*200,200+column*100))# random a image
if [row, column, rowSpan, columnSpan] == [0, 1, 1, 1]:
arr = np.random.randint(0,255,(1000,1000))
image = QImage(arr[:], arr.shape[1], arr.shape[0], arr.shape[1] * 3, QImage.Format_RGB888)
pixmap = QPixmap.fromImage(image)
###########################################################################
label = QLabel()
label.setPixmap(pixmap)
scrollArea.setWidget(label)
scrollArea.setAlignment(Qt.AlignCenter)
label.show()
gridLayout.addWidget(scrollArea, row, column, rowSpan, columnSpan, alignment=Qt.AlignCenter)
scrollArea.show()
if __name__ == "__main__":
app = QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())
但当我运行它时,只有当图像足够大时,QScrollArea才能填充QGridLayout的网格。如果图像小于栅格,则QScrollArea将变为与图像相同的大小(小于栅格)
如何在不调整图像大小的情况下使每个QScrollara始终填充网格? (并非每个QScrollArea的大小不同)
如果希望每个QScrollArea占用相同的空间,请在每行和每列中设置相同的拉伸系数:
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