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SciJava Common is a shared library for SciJava software. It provides a plugin framework, with an extensible mechanism for service discovery, backed by its own annotation processor, so that plugins can be loaded dynamically. It is used by downstream projects in the SciJava ecosystem, such as ImageJ and SCIFIO.
/*
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* SciJava Common shared library for SciJava software.
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package org.scijava.ui;
import java.lang.reflect.InvocationTargetException;
import org.scijava.log.LogService;
import org.scijava.plugin.Parameter;
import org.scijava.thread.ThreadService;
import org.scijava.widget.AbstractInputWidget;
import org.scijava.widget.InputWidget;
/**
* Abstract superclass of {@link InputWidget} implementations that
* belong to a specific UI.
*
* {@link #refreshWidget()} implementation determines if this widget
* needs to be refreshed on the EDT, and invokes it as needed if so.
*
*
* Subclasses should implement {@link #doRefresh()} as they would
* have {@link #refreshWidget()}. A common abstract superclass
* for each UserInterface type should be sufficient for
* {@link #ui()}, which can delegate to {@link #ui(String)} with
* the appropriate UI name.
*
*
* @author Mark Hiner
*
*/
public abstract class AbstractUIInputWidget extends AbstractInputWidget {
// -- Fields --
@Parameter
private ThreadService threadService;
@Parameter
private UIService uiService;
@Parameter
private LogService log;
// -- InputWidget methods --
@Override
public void refreshWidget() {
// If this widget requires the EDT, ensure its refresh action takes place
// on the EDT.
if (ui().requiresEDT()) {
try {
threadService.invoke(new Runnable() {
@Override
public void run() {
doRefresh();
}
});
}
catch (InterruptedException e) {
log.error("Interrupted while refresh widget: " + getClass(), e);
}
catch (InvocationTargetException e) {
log.error("Failed to refresh widget: " + getClass() + " on EDT", e);
}
}
else {
doRefresh();
}
}
// -- AbstractUIInputWidget methods --
/**
* Performs the intended {@link #refreshWidget()} operation.
*/
protected abstract void doRefresh();
/**
* @return The {@link UserInterface} instance associated
* with this InputWidget.
*/
protected abstract UserInterface ui();
/**
* @return the UserInterface matching the provided String
*/
protected UserInterface ui(String uiName) {
return uiService.getUI(uiName);
}
}