PyQt:如何自定义ComboBox项目显示

Question

是否可以先创建一个ComboBox项,然后设置其显示属性(例如项目的背景颜色,图标,字体颜色,字体大小等,然后使用Comobobox的.addItem()方法将其添加到ComboBox？原样是现在我被困了:

myCombobox = QtGui.QComboBox
for i in range(10):
    myCombobox.addItem(str(i))

不用说,这种方法几乎没有空间来定制各个ComboBox的项目显示属性.我想要的是这样的:

myCombobox = QtGui.QComboBox
for i in range(10):
    item = comboboxItem()
    item.setColor(allBlueAndShiny)
    font = QtGui.QFont()
    font.setPointSize(10)
    item.setFont(font)

    # Only after item was set with all display properties it is added:        
    myCombobox.addItem(str(i))

稍后编辑

以下是QCombobox定制项目的工作示例.谢谢Ekhumoro!

---

from PyQt4 import QtGui, QtCore

def main():
    app = QtGui.QApplication(sys.argv)
    window = QtGui.QWidget()
    main_layout = QtGui.QVBoxLayout()
    # QComboBox
    combo = QtGui.QComboBox()
    model = combo.model()
    for row in range(10):
        item = QtGui.QStandardItem(str(row))
        item.setForeground(QtGui.QColor('red'))
        font = item.font()
        font.setPointSize(10)
        item.setFont(font)
        model.appendRow(item)
    main_layout.addWidget(combo) 

    ok_button = QtGui.QPushButton("OK")
    ok_button.clicked.connect(OK)      
    main_layout.addWidget(ok_button) 

    main_layout.addStretch(1)
    window.setLayout(main_layout)
    window.show()
    sys.exit(app.exec_())

def OK(self):
    print 'OK'

if __name__ == '__main__':
    main()

Answer 1

默认情况下,QComboBox使用QStandardItemModel,因此QStandardItem方法可用于更改各种显示属性:

combo = QtGui.ComboBox()
model = combo.model()
for row in range(10):
    item = QtGui.QStandardItem(str(index))
    item.setForeground(QtGui.QColor('red'))
    font = item.font()
    font.setPointSize(10)
    item.setFont(font)
    model.appendRow(item)

PS:

如果要重置其中一个项属性,请将其设置为None,如下所示:

    item = self.combo.model().item(row)
    item.setData(None, QtCore.Qt.ForegroundRole)