listpreviewwidget

The listpreviewwidget is a widget that lists the slides in the slide controller. It is based on a QTableWidget but represents its contents in list form.

class openlp.core.ui.lib.listpreviewwidget.ListPreviewWidget(parent, screen_ratio)

Bases: PyQt5.QtWidgets.QTableWidget, openlp.core.common.registryproperties.RegistryProperties

A special type of QTableWidget which lists the slides in the slide controller

Parameters:

• parent –
• screen_ratio –

change_slide(slide)

Switches to the given row.

current_slide_number()

Returns the position of the currently active item. Will return -1 if the widget is empty.

replace_service_item(service_item, width, slide_number)

Replace the current preview items with the ones in service_item and display the given slide

Parameters:

• service_item – The service item to insert
• width – The width of the column
• slide_number – The slide number to pre-select

resizeEvent(event)

Overloaded method from QTableWidget. Will recalculate the layout.

row_resized(row, old_height, new_height)

Will scale non-image slides.

screen_size_changed(screen_ratio)

This method is called whenever the live screen size changes, which then makes a layout recalculation necessary

Parameters:screen_ratio – The new screen ratio

slide_count()

Returns the number of slides this widget holds.