new_dock_widget = QDockWidget(u"My doc widget")
layout = QVBoxLayout()
map_canvas_overview = QgsMapOverviewCanvas(
new_dock_widget,
iface.mapCanvas()
)
layerset = [iface.activeLayer().id()]
map_canvas_overview.setLayerSet(layerset)
map_canvas_overview.setBackgroundColor(QColor(255, 127, 0))
map_canvas_overview.enableAntiAliasing(True)
map_canvas_overview.setMinimumWidth(380)
map_canvas_overview.setMinimumHeight(280)
new_dock_widget.resize(400, 300)
layout.addWidget(map_canvas_overview)
new_dock_widget.setLayout(layout)
iface.mainWindow().addDockWidget(Qt.RightDockWidgetArea, new_dock_widget)
new_dock_widget.show()
map_canvas_overview.refresh() # Make the background color disappear?
# Layout optional playground
layout.setContentsMargins(0, 0, 0, 0)
# To clean unuseful reference widgets
[iface.mainWindow().removeDockWidget(i) for i in QObject.findChildren(iface.mainWindow(), QDockWidget) if i.windowTitle() == u'My doc widget']
