org.scijava.display

Interface Display<T>

All Superinterfaces:

Collection<T>, Comparable<Prioritized>, Contextual, HasPluginInfo, Iterable<T>, List<T>, Named, Prioritized, RichPlugin, SciJavaPlugin

All Known Subinterfaces:

TextDisplay

All Known Implementing Classes:

AbstractDisplay, DefaultDisplay, DefaultTextDisplay

public interface Display<T>
extends List<T>, RichPlugin, Named

A display is a particular type of plugin intended to collect objects for visualization. For example, a TextDisplay displays Strings.

Displays discoverable at runtime must implement this interface and be annotated with @Plugin with attribute Plugin.type() = Display.class. While it possible to create a display merely by implementing this interface, it is encouraged to instead extend AbstractDisplay, for convenience.

Author:

Curtis Rueden, Grant Harris

See Also:

Plugin, DisplayService

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canDisplay(Class<?> c) Tests whether the display is capable of visualizing objects of the given class.
boolean	canDisplay(Object o) Tests whether the display is capable of visualizing the given object.
void	close() Closes the display and disposes its resources.
void	display(Object o) Displays the given object in this display.
boolean	isDisplaying(Object o) Tests whether the display is currently visualizing the given object.
void	update() Updates and redraws the display onscreen.

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, equals, get, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, retainAll, set, size, subList, toArray, toArray

Methods inherited from interface org.scijava.Contextual

context, getContext, setContext

Methods inherited from interface org.scijava.Prioritized

getPriority, setPriority

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface org.scijava.plugin.HasPluginInfo

getInfo, setInfo

Methods inherited from interface org.scijava.Named

getName, setName

Method Detail

canDisplay

boolean canDisplay(Class<?> c)

Tests whether the display is capable of visualizing objects of the given class.

Parameters:

c - The class to check for visualization capabilities.

Returns:

True if the display can handle certain objects of the given class; false if it cannot visualize any objects of that class.

canDisplay

boolean canDisplay(Object o)

Tests whether the display is capable of visualizing the given object.

display

void display(Object o)

Displays the given object in this display.

This method is essentially the same as List.add(E) except that it accepts any Object regardless of type.

Throws:

IllegalArgumentException - if the object cannot be displayed (i.e., if canDisplay(Object) returns false).

isDisplaying

boolean isDisplaying(Object o)

Tests whether the display is currently visualizing the given object.

Note that this method may behave differently than List.contains(java.lang.Object); in general, any time List.contains(java.lang.Object) returns true, this method will also return true, but not vice versa. For example, in ImageJ, an ImageDisplay is a Display<DataView> but calling isDisplaying on a Dataset (which is not a DataView) will return true if the ImageDisplay currently contains a DatasetView that wraps that Dataset.

update

void update()

Updates and redraws the display onscreen.

close

void close()

Closes the display and disposes its resources.