Question

我使用pyqt4编写了以下python程序。这是一个在窗口中显示图标的简单程序。

from PyQt4.QtGui import *
from PyQt4 import QtGui, QtCore
import sys
class Main(QtGui.QMainWindow):
    def __init__(self, parent = None):
        super(Main, self).__init__(parent)
        self.centralWidget=QWidget()
        self.setCentralWidget(self.centralWidget)
        w=QGridLayout()
        size=128
        icon=QIcon()
        mode=QIcon.Selected
        state=QIcon.Off
        pixma = QPixmap('a.png') 
        icon.addPixmap(pixma,mode,state)
        label=QLabel()
        label.setPixmap(icon.pixmap(size,mode,state))
        w.addWidget(label,0,0,0,1)
        self.centralWidget.setLayout(w)
        self.resize(self.minimumSizeHint())

虽然模式设置为选中但我看不到要选择的图标。当我以下列方式编写代码时，它会显示一个选定的图标：

from PyQt4.QtGui import *
from PyQt4 import QtGui, QtCore
import sys
class Main(QtGui.QMainWindow):
    def __init__(self, parent = None):
        super(Main, self).__init__(parent)
        self.centralWidget=QWidget()
        self.setCentralWidget(self.centralWidget)
        w=QGridLayout()
        size=128
        icon=QIcon()
        mode=QIcon.Selected
        state=QIcon.Off
        pixma = QPixmap('a.png') 
        icon.addPixmap(pixma,mode,state)
        label=QLabel()
        #CHANGED CODE
        label.setPixmap(icon.pixmap(size,QIcon.Selected,state))
        w.addWidget(label,0,0,0,1)
        self.centralWidget.setLayout(w)
        self.resize(self.minimumSizeHint())

可能是什么问题？

Pyqt图标未显示已选中

0 个答案: