73 lines
1.8 KiB
Java
73 lines
1.8 KiB
Java
package com.minres.scviewer.e4.application.parts.txTableTree;
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import org.eclipse.jface.viewers.Viewer;
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import org.eclipse.jface.viewers.ViewerComparator;
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import com.minres.scviewer.database.tx.ITxAttribute;
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/**
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* The Class TxAttributeViewerSorter.
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*/
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public class TxAttributeViewerSorter extends ViewerComparator {
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/** The Constant ASCENDING. */
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private static final int ASCENDING = 0;
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/** The Constant DESCENDING. */
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private static final int DESCENDING = 1;
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/** The column. */
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private int column;
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/** The direction. */
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private int direction;
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/**
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* Does the sort. If it's a different column from the previous sort, do an
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* ascending sort. If it's the same column as the last sort, toggle the sort
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* direction.
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*
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* @param column the column
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*/
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public void doSort(int column) {
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if (column == this.column) {
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// Same column as last sort; toggle the direction
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direction = 1 - direction;
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} else {
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// New column; do an ascending sort
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this.column = column;
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direction = ASCENDING;
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}
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}
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/**
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* Compares the object for sorting.
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*
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* @param viewer the viewer
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* @param e1 the e1
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* @param e2 the e2
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* @return the int
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*/
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public int compare(Viewer viewer, Object e1, Object e2) {
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int rc = 0;
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if(e1 instanceof ITxAttribute && e2 instanceof ITxAttribute){
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ITxAttribute p1 = (ITxAttribute) e1;
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ITxAttribute p2 = (ITxAttribute) e2;
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// Determine which column and do the appropriate sort
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switch (column) {
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case 0:
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rc = getComparator().compare(p1.getName(), p2.getName());
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break;
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case 1:
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rc = getComparator().compare(p1.getDataType().name(), p2.getDataType().name());
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break;
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case 2:
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rc = getComparator().compare(p1.getValue().toString(), p2.getValue().toString());
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break;
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}
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// If descending order, flip the direction
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if (direction == DESCENDING) rc = -rc;
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}
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return rc;
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}
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} |