79 lines
1.7 KiB
Java
79 lines
1.7 KiB
Java
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package net.sourceforge.tuned.ui;
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import java.lang.reflect.Method;
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import javax.swing.Icon;
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import net.sourceforge.tuned.ExceptionUtil;
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/**
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* <code>LabelProvider</code> based on reflection.
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*/
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public class SimpleLabelProvider<T> implements LabelProvider<T> {
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private final Method getIconMethod;
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private final Method getNameMethod;
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/**
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* Same as <code>new SimpleLabelProvider<T>(T.class)</code>.
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*
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* @return new <code>LabelProvider</code>
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*/
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public static <T> SimpleLabelProvider<T> forClass(Class<T> type) {
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return new SimpleLabelProvider<T>(type);
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}
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/**
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* Create a new LabelProvider which will use the <code>getName</code> and
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* <code>getIcon</code> method of the given class.
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*
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* @param type a class that has a <code>getName</code> and a <code>getIcon</code> method
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*/
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public SimpleLabelProvider(Class<T> type) {
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this(type, "getName", "getIcon");
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}
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/**
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* Create a new LabelProvider which will use a specified method of a given class
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*
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* @param type a class with the specified method
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* @param getName a method name such as <code>getName</code>
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* @param getIcon a method name such as <code>getIcon</code>
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*/
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public SimpleLabelProvider(Class<T> type, String getName, String getIcon) {
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try {
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getNameMethod = type.getMethod(getName);
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getIconMethod = type.getMethod(getIcon);
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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@Override
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public String getText(T value) {
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try {
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return (String) getNameMethod.invoke(value);
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} catch (Exception e) {
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throw ExceptionUtil.asRuntimeException(e);
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}
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}
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@Override
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public Icon getIcon(T value) {
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try {
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return (Icon) getIconMethod.invoke(value);
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} catch (Exception e) {
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throw ExceptionUtil.asRuntimeException(e);
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}
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}
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}
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