我试图捕捉窗口的调整大小事件，当我这样做时，基本上删除了 gridLayout 中的所有小部件项目并重建行/列以适应新的调整大小的窗口。我无法使其正常工作，并且不确定这是否是我使用过的最佳方法。现在发生了两个问题：
当我将窗口大小调整为更大时，它似乎并没有正确地删除项目、重建和添加列（有些项目被删除，有些被添加，但似乎只是重叠并且永远不适合新的窗口大小）。
调整大小似乎在窗口的开始/创建时被调用。
class Window (QtGui.QMainWindow):
def __init__(self):
super(Window, self).__init__()
self.thumbs = []
self.thumbWidgets = []
self._resize_timer = None
self.resizeCompleted.connect(self.handleResizeCompleted)
self.setGeometry(100, 100, 800, 600)
self.home()
def home(self):
self.centralwidget = QtGui.QWidget(self)
'''MainLAYOUT
'''
self.mainLayout = QtGui.QVBoxLayout(self.centralwidget)
self.thumb_tab_QGroupBox = QtGui.QGroupBox(self.centralwidget)
'''GroupBoxLAYOUT
'''
self.vLayout = QtGui.QVBoxLayout(self.thumb_tab_QGroupBox)
self.vLayout.setObjectName("GroupVLayout")
#Scroll Area
self.thumbScrollArea = QtGui.QScrollArea(self.thumb_tab_QGroupBox)
self.thumbScrollArea.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn)
self.thumbScrollArea.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOn)
self.thumbScrollArea.setWidgetResizable(True)
self.thumbScrollArea.setAlignment(QtCore.Qt.AlignLeft)
self.thumbScrollArea.setObjectName("thumb_scrollArea")
self.scrollAreaWidgetContents = QtGui.QWidget()
self.scrollAreaWidgetContents.setMinimumSize(QtCore.QSize(840, scrollAreaX))
self.scrollAreaWidgetContents.setObjectName("scrollAreaWidgetContents")
self.thumbScrollArea.setWidget(self.scrollAreaWidgetContents)
self.vLayout.addWidget(self.thumbScrollArea)
self.mainLayout.addWidget(self.thumb_tab_QGroupBox)
#Grid in Scroll Area
self.gridLayoutWidget = QtGui.QWidget(self.scrollAreaWidgetContents)
self.gridLayoutWidget.setObjectName("gridLayoutWidget")
self.gridLayout_QGridLayout = QtGui.QGridLayout(self.gridLayoutWidget)
self.gridLayout_QGridLayout.setObjectName("gridLayout")
#Loads thumbnails
self.getThumbnails()
self.mainLayout.setAlignment(QtCore.Qt.AlignLeft)
self.setCentralWidget(self.centralwidget)
def resizeEvent(self, resizeEvent):
self.updateResizeTimer(300)
def updateResizeTimer(self, interval=None):
if self._resize_timer is not None:
self.killTimer(self._resize_timer)
if interval is not None:
self._resize_timer = self.startTimer(interval)
else:
self._resize_timer = None
def timerEvent(self, event):
if event.timerId() == self._resize_timer:
self.updateResizeTimer()
self.resizeCompleted.emit()
def handleResizeCompleted(self):
print('resize complete')
# Get new window size on resize
width = self.centralwidget.frameGeometry().width()
height = self.centralwidget.frameGeometry().height()
thumbsPerRow = width / 200
print "numThumbnails per Width", thumbsPerRow
self.gridLayoutWidget.adjustSize()
self.gridLayout_QGridLayout.maximumSize()
for widget in self.thumbWidgets:
print "Removing widget", widget
self.gridLayout_QGridLayout.removeWidget(widget)
#widget.deleteLater()
self.populate(self.thumbWidgets, QtCore.QSize(200,200), thumbsPerRow)
def queryThumbnailCount(self):
....
...
..
return sizeX
def getThumbnails(self):
.....
....
...
.
self.createThumbWidgets(self.thumbs, QtCore.QSize(200,200))
self.populate(self.thumbs, QtCore.QSize(200,200))
def createThumbWidgets(self, pics, size, imagesPerRow=4, flags=QtCore.Qt.KeepAspectRatioByExpanding):
for pic in pics:
label = QtGui.QLabel("")
pixmap = QtGui.QPixmap(pic)
pixmap = pixmap.scaled(size, flags)
label.setPixmap(pixmap)
self.thumbWidgets.append(label)
#Add thumbnails to grid
def populate(self, pics, size, imagesPerRow=6, flags=QtCore.Qt.KeepAspectRatioByExpanding):
row = col = 0
for widget in self.thumbWidgets:
print "Adding Image to column "+str(col)
self.gridLayout_QGridLayout.addWidget(widget, row, col)
col +=1
if col % imagesPerRow == 0:
row += 1
col = 0
GUI = Window()
GUI.show()