flash-deco.hpp File Reference

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Description

Decorator to add the ability to display a visual flash action to a GTK widget.

The protocol for operating UI elements connected to the UI-Bus includes a message to make the receiving widget flash for a short time, to mandate the user's attention. The visual change itself is effected by adding a CSS class, while adding a timeout callback to revert to normal display after a short timespan. In itself, this modification sequence is entirely generic, and can thus be added by decorating the widget to affect; moreover, adding such a callback need to be done properly, to avoid a crash in case the widget is destroyed during the timeout period.

See also

UI-Element protocol

usage example

Definition in file flash-deco.hpp.

#include "stage/gtk-base.hpp"
#include "stage/style-scheme.hpp"

Classes
class	FlashDeco< WIT >
	Decorator for a Gtk::Widget to add a visual flash action. More...

Namespaces
	stage
	Lumiera GTK UI implementation root.
	stage::model
	The Lumiera GTK-GUI uses a thin proxy layer data model on top of the actual "high-level-model", which lives in the Steam-Layer below.