我有以下代码:
#!/usr/bin/env python
import sys
from PyQt4 import QtGui, QtCore
class SimfilePanel(QtGui.QWidget):
'''This class provides the simfile panel shown on the right side of the main window.'''
def __init__(self, parent=None):
'''Load song info here.'''
QtGui.QWidget.__init__(self, parent)
## Make widgets.
# Pane with simfile information.
simfileInfoPane = QtGui.QWidget()
simfileInfoPane.setSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Expanding)
simfileInfoGrid = QtGui.QGridLayout()
simfileInfoPane.setLayout(simfileInfoGrid)
simfileInfoScrollArea = QtGui.QScrollArea()
simfileInfoScrollArea.setWidget(simfileInfoPane)
#if DEBUG: simfileInfoScrollArea.setBackgroundRole(QtGui.QPalette.Dark);
# This will change
labels = []
textfields = []
for i in range(0,20):
labels.append( QtGui.QLabel("Label "+str(i)) )
textfields.append( QtGui.QLineEdit() )
labels[i].setBuddy(textfields[i])
simfileInfoGrid.addWidget(labels[i], i, 0)
simfileInfoGrid.addWidget(textfields[i], i, 1)
## Put widgets in a grid layout.
mainvbox = QtGui.QVBoxLayout()
mainvbox.addWidget(simfileInfoScrollArea)
self.setLayout(mainvbox)
# Standalone testing
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
panel = SimfilePanel()
panel.show()
sys.exit(app.exec_())
我无法得到任何要放入 simfileInfoGrid 的内容来显示!如果我省略滚动区域,它们会显示,但我需要滚动区域,因为在最终版本中我将有很多字段要编辑,而且我不想在屏幕上拉伸整个窗口。
如您所见,我尝试向 simfileInfoPane 添加大小策略,但它似乎没有任何影响。应该包含我的窗格的区域保持空白!