[PyQt] Widget border and focus

[Russell Valentine]

I'm wondering if anyone has tried to make a custom widget and wanted a 
border around your widget (sunken or otherwise) like all the other 
widgets have. It then also gets highlighted when it has focus. I thought 
that it was QFrame that is doing that, but by putting my custom widget 
in a QFrame, nothing happens, even if I manually set the frame style.

Below is some simple code. I have a splitter, on one side is my custom 
widget and on the other side is a QListView. You can see the border 
around the QListView and when it has focus the border changes to 
indicate it. You can not tell the customwidget has focus however.

I've been trying to figure this out for a couple of days now, and 
haven't found a solution yet. I think I'm missing some simple concept. 
If anyone can point me in the right direction I would appreciate it.

Thank you.


Russell Valentine





import sys

from PyQt4 import QtGui, QtCore

class CustomWidget(QtGui.QWidget):
     def __init__(self, parent):
         QtGui.QWidget.__init__(self, parent)
         self.setSizePolicy(QtGui.QSizePolicy.Expanding, 
QtGui.QSizePolicy.Expanding)
         self.setMinimumHeight(200)
         self.setMinimumWidth(200)
         self.setFocusPolicy(QtCore.Qt.StrongFocus)
     def paintEvent(self, event):
         painter=QtGui.QPainter(self)
         b = 
QtGui.QBrush(QtGui.QApplication.palette().color(QtGui.QPalette.Base))
         painter.fillRect(0, 0, self.width(), self.height(), b)

class MainWindow(QtGui.QMainWindow):
     def __init__(self, app):
         QtGui.QMainWindow.__init__(self)
         self.app=app

         self.setWindowTitle("Frame test")
         self.splitter=QtGui.QSplitter()
         self.frame=QtGui.QFrame()
         vbox=QtGui.QVBoxLayout(self.frame)
         self.customWidget = CustomWidget(self)
         vbox.addWidget(self.customWidget)
         self.frame.setFocusProxy(self.customWidget)

         self.list = QtGui.QListView()
         self.splitter.addWidget(self.frame)
         self.splitter.addWidget(self.list)
         self.setCentralWidget(self.splitter)


if __name__ == "__main__":
     app=QtGui.QApplication(sys.argv)
     window = MainWindow(app)
     window.show()
     sys.exit(app.exec_())