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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.widget;
import java.util.List;
import org.scijava.Contextual;
import org.scijava.ItemVisibility;
import org.scijava.module.Module;
import org.scijava.module.ModuleItem;
/**
* The backing data model for a particular {@link InputWidget}.
*
* @author Curtis Rueden
*/
public interface WidgetModel extends Contextual {
/** Gets the input panel intended to house the widget. */
InputPanel getPanel();
/** Gets the module's associated module instance. */
Module getModule();
/** Gets the module input's associated item descriptor. */
ModuleItem getItem();
/**
* Gets the available objects for use with the widget. For example,
* {@link ObjectWidget}s typically display a dropdown combo box providing
* multiple choice selection between these objects.
*
* Note that this list does not represent a constraint in allowed widget
* values, but rather provides a list of possibilities in cases where the
* realm of values is not defined by the type in some other way.
*
*
* @see ObjectWidget
*/
List getObjectPool();
/**
* Gets the text to use when labeling this widget. The linked item's label
* will be given if available (i.e., {@link ModuleItem#getLabel()}).
* Otherwise, a capitalized version of the item's name is given (i.e.,
* {@link ModuleItem#getName()}).
*/
String getWidgetLabel();
/**
* Gets whether the widget is the given style. A widget may have multiple
* styles separated by commas, so this method is more correct than using
* {@code style.equals(getItem().getWidgetStyle())}.
*/
boolean isStyle(String style);
/**
* Gets the current value of the module input.
*
* In the case of inputs with a limited set of choices (i.e.,
* {@link ChoiceWidget}s and {@link ObjectWidget}s), this method ensures the
* value is in the set; if not, it returns the first item of the set.
*
*/
Object getValue();
/** Sets the current value of the module input. */
void setValue(Object value);
/** Executes the callback associated with this widget's associated input. */
void callback();
/**
* Gets the minimum value for the module input.
*
* @return The minimum value, or null if the type is unbounded.
*/
Number getMin();
/**
* Gets the maximum value for the module input.
*
* @return The maximum value, or null if the type is unbounded.
*/
Number getMax();
/**
* Gets the "soft" minimum value for the module input.
*
* @return The "soft" minimum value, or {@link #getMin()} if none.
* @see ModuleItem#getSoftMinimum()
*/
Number getSoftMin();
/**
* Gets the "soft" maximum value for the module input.
*
* @return The "soft" maximum value, or {@link #getMax()} if none.
* @see ModuleItem#getSoftMaximum()
*/
Number getSoftMax();
/**
* Gets the step size between values for the module input.
*
* @return The step size, or 1 by default.
*/
Number getStepSize();
/**
* Gets the multiple choice list for the module input.
*
* @return The available choices, or an empty list if not multiple choice.
* @see ChoiceWidget
*/
String[] getChoices();
/**
* Gets the input's value rendered as a string.
*
* @return String representation of the input value, or the empty string if
* the value is null or the null character ('\0').
*/
String getText();
/**
* Gets whether the input is a message.
*
* @see ItemVisibility#MESSAGE
*/
boolean isMessage();
/**
* Gets whether the input is a text type (i.e., {@link String},
* {@link Character} or {@code char}.
*/
boolean isText();
/**
* Gets whether the input is a character type (i.e., {@link Character} or
* {@code char}).
*/
boolean isCharacter();
/**
* Gets whether the input is a number type (e.g., {@code int}, {@code float}
* or any {@link Number} implementation.
*/
boolean isNumber();
/**
* Gets whether the input is a boolean type (i.e., {@link Boolean} or
* {@code boolean}).
*/
boolean isBoolean();
/** Gets whether the input provides a restricted set of choices. */
boolean isMultipleChoice();
/** Gets whether the input is compatible with the given type. */
boolean isType(Class type);
/**
* Toggles the widget's initialization state. An initialized widget can be
* assumed to be an active part of a container {@link InputPanel}.
*/
void setInitialized(boolean initialized);
/**
* Gets the widget's initialization state. An initialized widget can be
* assumed to be an active part of a container {@link InputPanel}.
*/
boolean isInitialized();
}