class DF_TalkUI(QMainWindow):


    def __init__(self, parent = None):
        super(DF_TalkUI, self).__init__(parent)
        self.setObjectName("DF_Talk_Window")
        self.setWindowTitle("DF Talk Window")
        self._initUI()
        self.errorDialog = QErrorMessage(self) # QErrorMessageインスタンスの保持

    def setupApp(self,app):
        self.app=app
    def _initUI(self):
        wrapper = QWidget()
        self.setCentralWidget(wrapper)

        mainLayout = QVBoxLayout()
        wrapper.setLayout(mainLayout)


        #-----------------------------------------------------------------------
        # sixth row
        #-----------------------------------------------------------------------
        sixthHorizontalArea = QHBoxLayout()
        sixthHorizontalArea.setSpacing(20)
        mainLayout.addLayout(sixthHorizontalArea)



        progressDialogBtn = QPushButton("Progress Dialog")
        sixthHorizontalArea.addWidget(progressDialogBtn)
        progressDialogBtn.clicked.connect(self._showProgressDialog)

        fileDialogBtn = QPushButton("File Dialog")
        sixthHorizontalArea.addWidget(fileDialogBtn)
        fileDialogBtn.clicked.connect(partial(QFileDialog.getOpenFileName, self, "File Select", options = QFileDialog.DontUseNativeDialog))

        #-----------------------------------------------------------------------
        # seventh row
        #-----------------------------------------------------------------------


    def _makeHorizontalLine(self):
        hline = QFrame()
        hline.setFrameShape(QFrame.HLine)
        hline.setFrameShadow(QFrame.Sunken)
        return hline


    def _showProgressDialog(self):
        #----------------------------------------------------
        qApp = self.app
        #----------------------------------------------------
        #QProgressDialog表示スロット
        
        max = 100
        progressDialog = QProgressDialog("Progress...", "Cancel", 0, max, self)
        progressDialog.setWindowTitle("Progress Dialog")

        for count in range(max+1):
            qApp.processEvents()

            if progressDialog.wasCanceled():
                break

            progressDialog.setValue(count)
            progressDialog.setLabelText("Progress... %d %%" % count)
            time.sleep(0.1)



def start(app):
    maya_win = get_maya_pointer()
    ui = DF_TalkUI(parent = maya_win)
    ui.setupApp(app)
    ui.show()
    return ui

print("__name__= "+str(__name__))
if __name__ == '__main__':

    app = QApplication.instance()
    if app is None:
        app = QApplication([])
    ui = start(app)
    app.exec_()