scrolled-to-end-maintained

Arguments: chart-widget

Returns the value of the scrolled-to-end-maintained property of a chart-widget. The value may be set at creation time by passing the :scrolled-to-end-maintained initarg, or any time later by calling (setf scrolled-to-end-maintained).

scrolled-to-end-maintained is a boolean value indicating whether modifying a chart-widget that is scrolled to the end will keep it scrolled to the end. The default value is t.

This property has an effect only when it is true and the widget happens to be scrolled to the end of its data. In that situation, if chart items are added or removed at the end of the data then the widget is scrolled automatically so that it is still scrolled to the very end of its data. This is also done if the chart-widget is resized (which typically would happen if its right-attachment or bottom-attachment is :right or :bottom and the user resizes the parent window).

See also scrolled-to-end and scroll-position.

See chart-widget and also cg-chart-widget.htm.

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Created 2012.5.30.