Qt-Advanced-Docking-System/demo/main.py

import datetime
import logging
import os
import sys

from PyQt5 import uic
from PyQt5.QtCore import (QCoreApplication, QDir, Qt, QSettings, QSignalBlocker,
                          QRect, QPoint, qDebug, qInstallMessageHandler,
                          QtDebugMsg, QtInfoMsg, QtWarningMsg,
                          QtCriticalMsg, QtFatalMsg, QSize)
from PyQt5.QtGui import (QGuiApplication, QIcon, QCloseEvent)
from PyQt5.QtWidgets import (QCalendarWidget, QFileSystemModel, QFrame, QLabel,
                             QMenu, QTreeView, QAction, QWidgetAction,
                             QComboBox, QStyle, QSizePolicy, QInputDialog, QMenu,
                             QToolButton, QWidget, QPlainTextEdit,
                             QTableWidget, QTableWidgetItem, QApplication,
                             QMessageBox)
try:
    from PyQt5.QAxContainer import QAxWidget
except ImportError:
    ACTIVEX_AVAILABLE = False
else:
    ACTIVEX_AVAILABLE = True

from PyQtAds import QtAds

import rc  # pyrcc5 demo.qrc -o rc.py
from status_dialog import CStatusDialog

UI_FILE = os.path.join(os.path.dirname(__file__), 'mainwindow.ui')
MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE)


class _State:
    label_count = 0
    calendar_count = 0
    file_system_count = 0
    editor_count = 0
    table_count = 0
    activex_count = 0
    

def features_string(dock_widget: QtAds.CDockWidget) -> str:
    '''Function returns a features string with closable (c), movable (m) and floatable (f)
       features. i.e. The following string is for a not closable but movable and floatable
       widget: c- m+ f+'''

    f = dock_widget.features()
    closable = f & QtAds.CDockWidget.DockWidgetClosable
    movable = f & QtAds.CDockWidget.DockWidgetMovable
    floatable = f & QtAds.CDockWidget.DockWidgetFloatable
    
    return "c{} m{} f{}".format("+" if closable else "-",
                                "+" if movable else "-",
                                "+" if floatable else "-")


def append_feature_string_to_window_title(dock_widget: QtAds.CDockWidget):
    '''Appends the string returned by features_string() to the window title of
       the given DockWidget'''
       
    dock_widget.setWindowTitle(dock_widget.windowTitle() + " ({})".format(features_string(dock_widget)))


def svg_icon(filename: str):
    '''Helper function to create an SVG icon'''
    # This is a workaround, because because in item views SVG icons are not
    # properly scaled and look blurry or pixelate
    icon = QIcon(filename)
    icon.addPixmap(icon.pixmap(92))
    return icon


class CMinSizeTableWidget(QTableWidget):
    """Custom QTableWidget with a minimum size hint to test CDockWidget
    setMinimumSizeHintMode() function of CDockWidget"""
    
    def minimumSizeHint(self) -> QSize:
        return QSize(300, 100)

    
class CCustomComponentsFactory(QtAds.CDockComponentsFactory):

    def createDockAreaTitleBar(self, dock_area: QtAds.CDockAreaWidget) -> QtAds.CDockAreaTitleBar:
        title_bar = QtAds.CDockAreaTitleBar(dock_area)
        custom_button = QToolButton(dock_area)
        custom_button.setToolTip("Help")
        custom_button.setIcon(svg_icon(":/adsdemo/images/help_outline.svg"))
        custom_button.setAutoRaise(True)
        index = title_bar.indexOf(title_bar.button(QtAds.TitleBarButtonTabsMenu))
        title_bar.insertWidget(index + 1, custom_button)
        return title_bar


class MainWindow(MainWindowUI, MainWindowBase):
    save_perspective_action: QAction
    perspective_list_action: QWidgetAction
    perspective_combo_box: QComboBox
    dock_manager: QtAds.CDockManager

    def __init__(self, parent=None):
        super().__init__(parent)
        self.save_perspective_action = None
        self.perspective_list_action = None
        self.perspective_combo_box = None
        self.dock_manager = None
        self.window_title_test_dock_widget = None
        self.last_docked_editor = None

        self.setupUi(self)
        self.create_actions()
        
        # uncomment the following line if the tab close button should be
        # a QToolButton instead of a QPushButton
        # QtAds.CDockManager.setConfigFlags(QtAds.CDockManager.configFlags() | QtAds.CDockManager.TabCloseButtonIsToolButton)
        
        # uncomment the following line if you want to use opaque undocking and
        # opaque splitter resizing
        #QtAds.CDockManager.setConfigFlags(QtAds.CDockManager.DefaultOpaqueConfig)
        
        # uncomment the following line if you want a fixed tab width that does
        # not change if the visibility of the close button changes
        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.RetainTabSizeWhenCloseButtonHidden, True)

        # uncomment the following line if you don't want close button on DockArea's title bar
        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHasCloseButton, False)

        # uncomment the following line if you don't want undock button on DockArea's title bar
        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHasUndockButton, False)

        # uncomment the following line if you don't want tabs menu button on DockArea's title bar
        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHasTabsMenuButton, False)

        # uncomment the following line if you don't want disabled buttons to appear on DockArea's title bar
        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaHideDisabledButtons, True)

        # uncomment the following line if you want to show tabs menu button on DockArea's title bar only when there are more than one tab and at least of them has elided title
        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.DockAreaDynamicTabsMenuButtonVisibility, True)

        # uncomment the following line if you want floating container to always show application title instead of active dock widget's title
        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FloatingContainerHasWidgetTitle, False)

        # uncomment the following line if you want floating container to show active dock widget's icon instead of always showing application icon
        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FloatingContainerHasWidgetIcon, True)

        # uncomment the following line if you want a central widget in the main dock container (the dock manager) without a titlebar
        # If you enable this code, you can test it in the demo with the Calendar 0
        # dock widget.
        #QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.HideSingleCentralWidgetTitleBar, True)
        
        # uncomment the following line to enable focus highlighting of the dock
        # widget that has the focus
        QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.FocusHighlighting, True)
        
        # uncomment if you would like to enable an equal distribution of the
        # available size of a splitter to all contained dock widgets
        # QtAds.CDockManager.setConfigFlag(QtAds.CDockManager.EqualSplitOnInsertion, True)

        # Now create the dock manager and its content
        self.dock_manager = QtAds.CDockManager(self)
        
        # Uncomment the following line to have the old style where the dock
        # area close button closes the active tab
        # QtAds.CDockManager.setConfigFlags(QtAds.CDockManager.DockAreaHasCloseButton
                                          # | QtAds.CDockManager.DockAreaCloseButtonClosesTab)
        self.perspective_combo_box.activated[str].connect(self.dock_manager.openPerspective)
        
        self.create_content()
        # Default window geometry - center on screen
        self.resize(1280, 720)
        self.setGeometry(QStyle.alignedRect(
            Qt.LeftToRight, Qt.AlignCenter, self.frameSize(),
            QGuiApplication.primaryScreen().availableGeometry()))
        
        # self.restore_state()
        self.restore_perspectives() 

    def create_content(self):
        # Test container docking
        dock_widget = self.create_calendar_dock_widget()
        dock_widget.setFeature(QtAds.CDockWidget.DockWidgetClosable, False)
        special_dock_area = self.dock_manager.addDockWidget(QtAds.LeftDockWidgetArea, dock_widget)
        
        # For this Special Dock Area we want to avoid dropping on the center of it (i.e. we don't want this widget to be ever tabbified):
        special_dock_area.setAllowedAreas(QtAds.OuterDockAreas)
        # special_dock_area.setAllowedAreas(QtAds.LeftDockWidgetArea | QtAds.RightDockWidgetArea) # just for testing
        
        dock_widget = self.create_long_text_label_dock_widget()
        self.window_title_test_dock_widget = dock_widget
        dock_widget.setFeature(QtAds.CDockWidget.DockWidgetFocusable, False)
        self.dock_manager.addDockWidget(QtAds.LeftDockWidgetArea, dock_widget)
        file_system_widget = self.create_file_system_tree_dock_widget()
        tool_bar = file_system_widget.createDefaultToolBar()
        tool_bar.addAction(self.actionSaveState)
        tool_bar.addAction(self.actionRestoreState)
        file_system_widget.setFeature(QtAds.CDockWidget.DockWidgetFloatable, False)
        append_feature_string_to_window_title(file_system_widget)
        self.dock_manager.addDockWidget(QtAds.BottomDockWidgetArea, file_system_widget)
        
        file_system_widget = self.create_file_system_tree_dock_widget()
        file_system_widget.setFeature(QtAds.CDockWidget.DockWidgetMovable, False)
        file_system_widget.setFeature(QtAds.CDockWidget.DockWidgetFloatable, False)
        append_feature_string_to_window_title(file_system_widget)
        
        # Test custom factory - we inject a help button into the title bar
        QtAds.CDockComponentsFactory.setFactory(CCustomComponentsFactory())
        top_dock_area = self.dock_manager.addDockWidget(QtAds.TopDockWidgetArea, file_system_widget)
        # Uncomment the next line if you would like to test the
        # HideSingleWidgetTitleBar functionality
        # top_dock_area.setDockAreaFlag(QtAds.CDockAreaWidget.HideSingleWidgetTitleBar, True)
        QtAds.CDockComponentsFactory.resetDefaultFactory()

        # We create a calendar widget and clear all flags to prevent the dock area
        # from closing
        dock_widget = self.create_calendar_dock_widget()
        dock_widget.setTabToolTip("Tab ToolTip\nHodie est dies magna")
        dock_area = self.dock_manager.addDockWidget(QtAds.CenterDockWidgetArea, dock_widget, top_dock_area)
        # Now we create a action to test resizing of DockArea widget
        action = self.menuTests.addAction("Resize {}".format(dock_widget.windowTitle()))
        def action_triggered():
            splitter = QtAds.internal.findParent(QtAds.CDockSplitter, dock_area)
            if not splitter:
                return
            # We change the sizes of the splitter that contains the Calendar 1 widget
            # to resize the dock widget
            width = splitter.width()
            splitter.setSizes([width * 2/3, width * 1/3])
        action.triggered.connect(action_triggered)

        # Now we add a custom button to the dock area title bar that will create
        # new editor widgets when clicked
        custom_button = QToolButton(dock_area)
        custom_button.setToolTip("Create Editor")
        custom_button.setIcon(svg_icon(":/adsdemo/images/plus.svg"))
        custom_button.setAutoRaise(True)
        
        title_bar = dock_area.titleBar()
        index = title_bar.indexOf(title_bar.tabBar())
        title_bar.insertWidget(index + 1, custom_button)
        def on_button_clicked():
            dock_widget = self.create_editor_widget()
            dock_widget.setFeature(QtAds.CDockWidget.DockWidgetDeleteOnClose, True)
            self.dock_manager.addDockWidgetTabToArea(dock_widget, dock_area)
            dock_widget.closeRequested.connect(self.on_editor_close_requested)
        custom_button.clicked.connect(on_button_clicked)

        # Test dock area docking
        right_dock_area = self.dock_manager.addDockWidget(
            QtAds.RightDockWidgetArea,
            self.create_long_text_label_dock_widget(), top_dock_area)
        self.dock_manager.addDockWidget(
            QtAds.TopDockWidgetArea,
            self.create_long_text_label_dock_widget(), right_dock_area)
    
        bottom_dock_area = self.dock_manager.addDockWidget(
            QtAds.BottomDockWidgetArea,
            self.create_long_text_label_dock_widget(), right_dock_area)

        self.dock_manager.addDockWidget(
            QtAds.CenterDockWidgetArea,
            self.create_long_text_label_dock_widget(), right_dock_area)
        self.dock_manager.addDockWidget(
            QtAds.CenterDockWidgetArea,
            self.create_long_text_label_dock_widget(), bottom_dock_area)

        
        action = self.menuTests.addAction("Set {} Floating".format(dock_widget.windowTitle()))
        action.triggered.connect(dock_widget.setFloating)
        action = self.menuTests.addAction("Set {} As Current Tab".format(dock_widget.windowTitle()))
        action.triggered.connect(dock_widget.setAsCurrentTab)
        action = self.menuTests.addAction("Raise {}".format(dock_widget.windowTitle()))
        action.triggered.connect(dock_widget.raise_)
        
        if ACTIVEX_AVAILABLE:
            flags = self.dock_manager.configFlags()
            if flags & QtAds.CDockManager.OpaqueUndocking:
                self.dock_manager.addDockWidget(QtAds.CenterDockWidgetArea,
                                                self.create_activex_widget(), right_dock_area)
                    
        for dock_widget in self.dock_manager.dockWidgetsMap().values():
            dock_widget.viewToggled.connect(self.on_view_toggled)
            dock_widget.visibilityChanged.connect(self.on_view_visibility_changed)

    def create_actions(self):
        self.toolBar.addAction(self.actionSaveState)
        self.toolBar.setToolButtonStyle(Qt.ToolButtonTextUnderIcon)
        self.actionSaveState.setIcon(svg_icon(":/adsdemo/images/save.svg"))
        self.toolBar.addAction(self.actionRestoreState)
        self.actionRestoreState.setIcon(svg_icon(":/adsdemo/images/restore.svg"))
        
        self.save_perspective_action = QAction("Create Perspective", self)
        self.save_perspective_action.setIcon(svg_icon(":/adsdemo/images/picture_in_picture.svg"))
        self.save_perspective_action.triggered.connect(self.save_perspective)
        self.perspective_list_action = QWidgetAction(self)
        self.perspective_combo_box = QComboBox(self)
        self.perspective_combo_box.setSizeAdjustPolicy(QComboBox.AdjustToContents)
        self.perspective_combo_box.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
        self.perspective_list_action.setDefaultWidget(self.perspective_combo_box)
        self.toolBar.addSeparator()
        self.toolBar.addAction(self.perspective_list_action)
        self.toolBar.addAction(self.save_perspective_action)
        
        a = self.toolBar.addAction("Create Floating Editor")
        a.setProperty("Floating", True)
        a.setToolTip("Creates floating dynamic dockable editor windows that are deleted on close")
        a.setIcon(svg_icon(":/adsdemo/images/note_add.svg"))
        a.triggered.connect(self.create_editor)
        self.menuTests.addAction(a)
        
        a = self.toolBar.addAction("Create Docked Editor")
        a.setProperty("Floating", False)
        a.setToolTip("Creates a docked editor windows that are deleted on close")
        a.setIcon(svg_icon(":/adsdemo/images/docked_editor.svg"))
        a.triggered.connect(self.create_editor)
        self.menuTests.addAction(a)

        a = self.toolBar.addAction("Create Floating Table")
        a.setToolTip("Creates floating dynamic dockable table with millions of entries")
        a.setIcon(svg_icon(":/adsdemo/images/grid_on.svg"))
        a.triggered.connect(self.create_table)
        self.menuTests.addAction(a)
        
        self.menuTests.addSeparator()
        a = self.menuTests.addAction("Show Status Dialog")
        a.triggered.connect(self.show_status_dialog)
        self.menuTests.addSeparator()
        
    def closeEvent(self, event: QCloseEvent):
        self.save_state()
        self.dock_manager.deleteLater()
        super().closeEvent(event)
        
    def on_actionSaveState_triggered(self, state: bool):
        qDebug("MainWindow::on_action_save_state_triggered")
        self.save_state()
        
    def on_actionRestoreState_triggered(self, state: bool):
        qDebug("MainWindow::on_action_restore_state_triggered")
        self.restore_state()
        
    def save_perspective(self):
        perspective_name, ok = QInputDialog.getText(self, "Save perspective",
                                                    "Enter unique name:")
        
        if ok and perspective_name:
            self.dock_manager.addPerspective(perspective_name)
            _ = QSignalBlocker(self.perspective_combo_box)
            self.perspective_combo_box.clear()
            self.perspective_combo_box.addItems(self.dock_manager.perspectiveNames())
            self.perspective_combo_box.setCurrentText(perspective_name)
            
            self.save_perspectives()
            
    def on_view_toggled(self, open: bool):
        dock_widget = self.sender()
        if dock_widget is None:
            return

        qDebug("{} view_toggled({})".format(dock_widget.objectName(), open))
        
    def on_view_visibility_changed(self, visible: bool):
        dock_widget = self.sender()
        if dock_widget is None:
            return

        # qDebug("{} visibility_changed({})".format(dock_widget.objectName(), visible))
            
    def create_editor(self):
        sender = self.sender()
        floating = sender.property("Floating")
        dock_widget = self.create_editor_widget()
        dock_widget.setFeature(QtAds.CDockWidget.DockWidgetDeleteOnClose, True)
        dock_widget.setFeature(QtAds.CDockWidget.DockWidgetForceCloseWithArea, True)
        dock_widget.closeRequested.connect(self.on_editor_close_requested)
        
        if floating:
            floating_widget = self.dock_manager.addDockWidgetFloating(dock_widget)
            floating_widget.move(QPoint(20, 20))
        else:
            editor_area = self.last_docked_editor.dockAreaWidget() if self.last_docked_editor is not None else None
            if editor_area is not None:
                self.dock_manager.setConfigFlag(QtAds.CDockManager.EqualSplitOnInsertion, True)
                self.dock_manager.addDockWidget(QtAds.RightDockWidgetArea, dock_widget, editor_area)
            else:
                self.dock_manager.addDockWidget(QtAds.TopDockWidgetArea, dock_widget)
            self.last_docked_editor = dock_widget
            
    def on_editor_close_requested(self):
        dock_widget = self.sender()
        result = QMessageBox.question(self, "Close Editor",
                "Editor {} contains unsaved changes? Would you like to close it?".format(dock_widget.windowTitle()))
        if result == QMessageBox.Yes:
            dock_widget.closeDockWidget()
            
    def create_table(self):
        dock_widget = self.create_table_widget()
        dock_widget.setFeature(QtAds.CDockWidget.DockWidgetDeleteOnClose, True)
        floating_widget = self.dock_manager.addDockWidgetFloating(dock_widget)
        floating_widget.move(QPoint(40, 40))
        
    def show_status_dialog(self):
        dialog = CStatusDialog(self.dock_manager)
        dialog.exec_()


    def toggle_dock_widget_window_title(self):
        title = self.window_title_test_dock_widget.windowTitle()
        i = title.find(" (Test) ")
        if i == -1:
            title += " (Test) "
        else:
            title = title[i]
        self.window_title_test_dock_widget.setWindowTitle(title)

    def save_state(self):
        '''
        Saves the dock manager state and the main window geometry
        '''
        settings = QSettings("Settings.ini", QSettings.IniFormat)
        settings.setValue("mainWindow/Geometry", self.saveGeometry())
        settings.setValue("mainWindow/State", self.saveState())
        settings.setValue("mainWindow/DockingState", self.dock_manager.saveState())

    def restore_state(self):
        '''
        Restores the dock manager state
        '''
        settings = QSettings("Settings.ini", QSettings.IniFormat)
        geom = settings.value("mainWindow/Geometry")
        if geom is not None:
            self.restoreGeometry(geom)

        state = settings.value("mainWindow/State")
        if state is not None:
            self.restoreState(state)

        state = settings.value("mainWindow/DockingState")
        if state is not None:
            self.dock_manager.restore_state(state)
            
    def save_perspectives(self):
        '''
        Save the list of perspectives
        '''
        settings = QSettings("Settings.ini", QSettings.IniFormat)
        self.dock_manager.savePerspectives(settings)

    def restore_perspectives(self):
        '''
        Restore the perspective listo of the dock manager
        '''
        settings = QSettings("Settings.ini", QSettings.IniFormat)
        self.dock_manager.loadPerspectives(settings)
        self.perspective_combo_box.clear()
        self.perspective_combo_box.addItems(self.dock_manager.perspectiveNames())

    def save_perspective(self):
        perspective_name, ok = QInputDialog.getText(self, 'Save perspective', 'Enter unique name:')
        if ok and perspective_name:
            self.dock_manager.addPerspective(perspective_name)
            _ = QSignalBlocker(self.perspective_combo_box)
            self.perspective_combo_box.clear()
            self.perspective_combo_box.addItems(self.dock_manager.perspectiveNames())
            self.perspective_combo_box.setCurrentText(perspective_name)
            self.save_perspectives()

    def create_long_text_label_dock_widget(self) -> QtAds.CDockWidget:
        label = QLabel()
        label.setWordWrap(True)
        label.setAlignment(Qt.AlignTop | Qt.AlignLeft)
        label.setText('''Label {} {} - Lorem ipsum dolor sit amet, consectetuer
    adipiscing elit.  Aenean commodo ligula eget dolor. Aenean massa. Cum
    sociis natoque penatibus et magnis dis parturient montes, nascetur
    ridiculus mus.  Donec quam felis, ultricies nec, pellentesque eu, pretium
    quis, sem.  Nulla consequat massa quis enim. Donec pede justo, fringilla
    vel, aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut,
    imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede mollis
    pretium. Integer tincidunt. Cras dapibus. Vivamus elementum semper nisi.
    Aenean vulputate eleifend tellus. Aenean leo ligula, porttitor eu,
    consequat vitae, eleifend ac, enim. Aliquam lorem ante, dapibus in, viverra
    quis, feugiat a, tellus. Phasellus viverra nulla ut metus varius laoreet.
        '''.format(_State.label_count, datetime.datetime.now().strftime("%H:%M:%S:%f")))
        dock_widget = QtAds.CDockWidget("Label {}".format(_State.label_count))
        _State.label_count += 1
        dock_widget.setWidget(label)

        self.menuView.addAction(dock_widget.toggleViewAction())
        return dock_widget

    def create_calendar_dock_widget(self) -> QtAds.CDockWidget:
        widget = QCalendarWidget()

        dock_widget = QtAds.CDockWidget("Calendar {}".format(_State.calendar_count))
        _State.calendar_count += 1
        # The following lines are for testing the setWidget() and takeWidget()
        # functionality
        dock_widget.setWidget(widget)
        dock_widget.setWidget(widget)  # what happens if we set a widget if a widget is already set
        dock_widget.takeWidget()  # we remove the widget
        dock_widget.setWidget(widget)  # and set the widget again - there should be no error
        dock_widget.setToggleViewActionMode(QtAds.CDockWidget.ActionModeShow)
        dock_widget.setIcon(svg_icon(":/adsdemo/images/date_range.svg"))
        self.menuView.addAction(dock_widget.toggleViewAction())
        return dock_widget

    def create_file_system_tree_dock_widget(self) -> QtAds.CDockWidget:
        widget = QTreeView()
        widget.setFrameShape(QFrame.NoFrame)

        m = QFileSystemModel(widget)
        m.setRootPath(QDir.currentPath())
        widget.setModel(m)

        dock_widget = QtAds.CDockWidget("Filesystem {}".format(_State.file_system_count))
        _State.file_system_count += 1
        dock_widget.setWidget(widget)
        self.menuView.addAction(dock_widget.toggleViewAction())
        return dock_widget

    def create_editor_widget(self) -> QtAds.CDockWidget:
        widget = QPlainTextEdit()
        widget.setPlaceholderText("This is an editor. If you close the editor, it will be "
                                  "deleted. Enter your text here.")
        widget.setStyleSheet("border: none")
        dock_widget = QtAds.CDockWidget("Editor {}".format(_State.editor_count))
        _State.editor_count += 1
        dock_widget.setWidget(widget)
        dock_widget.setIcon(svg_icon(":/adsdemo/images/edit.svg"))
        dock_widget.setFeature(QtAds.CDockWidget.CustomCloseHandling, True)
        self.menuView.addAction(dock_widget.toggleViewAction())

        options_menu = QMenu(dock_widget)
        options_menu.setTitle("Options")
        options_menu.setToolTip(options_menu.title())
        options_menu.setIcon(svg_icon(":/adsdemo/images/custom-menu-button.svg"))
        menu_action = options_menu.menuAction()
        # The object name of the action will be set for the QToolButton that
        # is created in the dock area title bar. You can use this name for CSS
        # styling
        menu_action.setObjectName("options_menu")
        dock_widget.setTitleBarActions([options_menu.menuAction()])
        a = options_menu.addAction("Clear Editor")
        a.triggered.connect(widget.clear)

        return dock_widget


    def create_table_widget(self) -> QtAds.CDockWidget:
        widget = CMinSizeTableWidget()
        dock_widget = QtAds.CDockWidget("Table {}".format(_State.table_count))
        _State.table_count += 1
        COLCOUNT = 5
        ROWCOUNT = 30
        widget.setColumnCount(COLCOUNT)
        widget.setRowCount(ROWCOUNT)
        for col in range(ROWCOUNT):
            widget.setHorizontalHeaderItem(col, QTableWidgetItem("Col {}".format(col + 1)))
            for row in range(ROWCOUNT):
                widget.setItem(row, col, QTableWidgetItem("T {:}-{:}".format(row + 1, col + 1)))

        dock_widget.setWidget(widget)
        dock_widget.setIcon(svg_icon(":/adsdemo/images/grid_on.svg"))
        dock_widget.setMinimumSizeHintMode(QtAds.CDockWidget.MinimumSizeHintFromContent)
        toolbar = dock_widget.createDefaultToolBar()
        action = toolbar.addAction(svg_icon(":/adsdemo/images/fullscreen.svg"), "Toggle Fullscreen")

        def on_toggle_fullscreen():
            if dock_widget.isFullScreen():
                dock_widget.showNormal()
            else:
                dock_widget.showFullScreen()

        action.triggered.connect(on_toggle_fullscreen)
        self.menuView.addAction(dock_widget.toggleViewAction())
        return dock_widget

    def create_activex_widget(self, parent: QWidget = None) -> QtAds.CDockWidget:
        widget = QAxWidget("{6bf52a52-394a-11d3-b153-00c04f79faa6}", parent)
        dock_widget = QtAds.CDockWidget("Active X {}".format(_State.activex_count))
        _State.activex_count += 1
        dock_widget.setWidget(widget)
        self.menuView.addAction(dock_widget.toggleViewAction())
        return dock_widget


def my_message_output(type, context, msg):
    if type == QtDebugMsg:
        print("Debug: {} ({}:{}, {})".format(msg, context.file, context.line, context.function))
    elif type == QtInfoMsg:
        print("Info: {} ({}:{}, {})".format(msg, context.file, context.line, context.function))
    elif type == QtWarningMsg:
        print("Warning: {} ({}:{}, {})".format(msg, context.file, context.line, context.function))
    elif type == QtCriticalMsg:
        print("Critical: {} ({}:{}, {})".format(msg, context.file, context.line, context.function))
    elif type == QtFatalMsg:
        print("Fatal: {} ({}:{}, {})".format(msg, context.file, context.line, context.function))


if __name__ == '__main__':
    QCoreApplication.setAttribute(Qt.AA_UseHighDpiPixmaps)
    QGuiApplication.setAttribute(Qt.AA_EnableHighDpiScaling)
    app = QApplication(sys.argv)
    app.setQuitOnLastWindowClosed(True)
    
    with open(os.path.join(os.path.dirname(__file__), "app.css"), "r") as style_sheet_file:
        app.setStyleSheet(style_sheet_file.read())
    
    qInstallMessageHandler(my_message_output)
    qDebug("Message handler test")
    
    mw = MainWindow()
    mw.show()
    app.exec_()