Maya Dockable Mixin Example

maya_ui.py

from PySide2 import QtWidgets, QtCore
from maya.app.general.mayaMixin import MayaQWidgetDockableMixin
from maya import OpenMayaUI

# Compatability
try:
    long
except NameError:
    long = int


class Mix(MayaQWidgetDockableMixin, QtWidgets.QMainWindow):

    _instance = None

    def __init__(self, *args, **kwargs):
        super(Mix, self).__init__(*args, **kwargs)

        self.setWindowTitle("Test")
        self.setMinimumSize(600, 600)
        self.resize(600, 800)

        self.central_widget = QtWidgets.QWidget()
        self.setCentralWidget(self.central_widget)

        self.layout = QtWidgets.QVBoxLayout(self.central_widget)

        self.table_widget = QtWidgets.QTableWidget()
        self.table_widget.setColumnCount(1)

        self.table_widget.setAlternatingRowColors(True)
        self.table_widget.setSelectionBehavior(
            QtWidgets.QAbstractItemView.SelectRows)
        self.table_widget.setSelectionMode(
            QtWidgets.QAbstractItemView.SingleSelection)
        self.table_widget.setShowGrid(False)
        self.table_widget.setGridStyle(QtCore.Qt.NoPen)
        self.table_widget.verticalHeader().setVisible(False)
        self.table_widget.horizontalHeader().setVisible(False)
        self.table_widget.horizontalHeader().setStretchLastSection(True)

        for i in range(10):
            self.table_widget.insertRow(i)
            item = QtWidgets.QTableWidgetItem()
            item.setText("test{0}".format(i))
            self.table_widget.setItem(i, 0, item)

        self.btn = QtWidgets.QPushButton("TEST")

        self.layout.addWidget(self.table_widget)
        self.layout.addWidget(self.btn)

        self.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)


def restore():
    '''Called when Maya opens to restore the Shadeset UI.'''

    workspace_control = OpenMayaUI.MQtUtil.getCurrentParent()
    Mix._instance = Mix()
    pointer = OpenMayaUI.MQtUtil.findControl(Mix._instance.objectName())
    OpenMayaUI.MQtUtil.addWidgetToMayaLayout(
        long(pointer),
        long(workspace_control),
    )


def show(**kwargs):
    '''Show the Shadeset UI.'''

    if Mix._instance is None:
        Mix._instance = Mix()

    Mix._instance.show(
        dockable=True,
        area='right',
        uiScript='import mix_ui; mix_ui.restore()',
    )


if __name__ == '__main__':
    show()