JTable排序类.doc

/* *(#)SortManager.java 05/1/13 * *Copyright 2005 Swing4CN Group. All rights reserved.*/package org.swing2cn.table;import java.awt.*;import java.awt.event.*;import java.util.*;import javax.swing.*;import javax.swing.event.*;import javax.swing.table.*;import org.swing2cn.util.*;/* * * Title: Swing2CN Project * * Description: A Project for Swing Components * * Copyright: Copyright (c) 2005 * * Organization: Swing4CN Group * This Class is used to add sorting function the the any JTable instances or JTables Childrens. * This is a very convenient tool to plug in.Because it dont effect the table and the JTable * instance neednt to change the TableModel to achieve the sorting function. * Warning: * Due to this Class will use the TableHeader,so if your JTable instance do some special to TableHeader * may occur Exception unexcepted. * author G.T.M. * version 0.1 * Chinese Descriptions: * 这是一个很方便的类，使用者不需要为了实现排序功能而特别制定一个TableMoel。只需要像使用插入式工具那样 * 插入这个类，就可以方便地实现排序功能。 * 警告: * 由于该类的实现过程设计TableHeader的处理，如果用户的JTable实例设计TableHeader的处理，可能会出现意外。 */public class SortManager implements TableModelListener /* * upIcon * * UpDownArrow * * see #UpDownArrow */ final static Icon upIcon = new UpDownArrow(0); /* * downIcon * * UpDownArrow * * see #UpDownArrow */ final static Icon downIcon = new UpDownArrow(1); private JTable table; private TableModel dataModel; /* * sortColumn * * The current sorting column. * * Chinese Descriptions: * * 当前排序的列. * * */ private int sortColumn; private Row rows; /* * ascending * * The order of sorting. * * Chinese Descriptions: * * 排序的顺序。 */ private boolean ascending; /* * sortableColumns * Its used to point out which columns are sortable. * Chinese Descriptions: * 用来指出哪几列是需要排序功能的. * * */ private int sortableColumns; /* * SortManager * * The base way to use this class.It will sort all the columns when user * click it. * * Chinese Descriptions: * * 该类基本用法，默认能给所有的列排序。 * * * * param jtable JTable */ public SortManager(JTable jtable) rows = null; ascending = true; sortableColumns = null; table = jtable; int i=0; int length=jtable.getModel().getColumnCount(); final int columns=new intlength; for(;ilength;i+) columnsi=i; sortableColumns=columns; initialize(); /* * SortManager * The base way to use this class.It will sort the specified column * when user click it. * Chinese Descriptions: * 该类基本用法，默认能给指定的列排序。 * * * * param jtable JTable * param i int * The column user specify to sort. */ public SortManager(JTable jtable, int i) rows = null; ascending = true; sortableColumns = null; table = jtable; sortColumn = i; initialize(); /* * SortManager * The base way to use this class.It will sort the specified columns * when user click it. * Chinese Descriptions: * 该类基本用法，默认能给指定的一组列排序。 * * * * param jtable JTable * param ai int The columns user specify to sort. */ public SortManager(JTable jtable, int ai) this(jtable, ai0); sortableColumns = (int) ai.clone(); /* * initialize * Initializing the JTable came in,escpecailly to add the listeners to * JTable. * * Chinese Descriptions: * * 初始化JTable实例，并且添加相应的侦听。 */ public void initialize() dataModel = table.getModel(); (AbstractTableModel) dataModel).addTableModelListener(this); addMouseListener(table); JTableHeader jtableheader = table.getTableHeader(); jtableheader.setDefaultRenderer(createHeaderRenderer(); if (table.getRowCount() 0) reinitialize(); /* * createHeaderRenderer * * Create the specify HeaderRender for the table,can response the mouse * action to sort the column. * * Chinese Description: * * 为table创建能够相应鼠标时间排序的TableHeaderRender。 * * * * return TableCellRenderer */ protected TableCellRenderer createHeaderRenderer() DefaultTableCellRenderer defaultHeaderRenderer = new SortHeaderRenderer(); defaultHeaderRenderer.setHorizontalAlignment(0); defaultHeaderRenderer.setHorizontalTextPosition(2); return defaultHeaderRenderer; public void reinitialize() rows = null; if (table.getRowCount() 0) rows = new Rowtable.getRowCount(); for (int i = 0; i rows.length; i+) rowsi = new Row(); rowsi.index = i; if (columnIsSortable(sortColumn) sort(); /* * columnIsSortable * Check out that if the specify column is sortable. It depend on the * constructor. * * Chinese Descriptions: * * 判断指定的列是否可排序，该方法的运行逻辑由整个类的构造函数构造时决定。 * * * * param i int * return boolean * see #public SortModel(Container container1, JTable jtable, int i) * see #public SortModel(Container container1, JTable jtable, int ai) * see #sortColumn * see #sortablrColumns */ private boolean columnIsSortable(int i) if (rows != null) if (sortableColumns != null) for (int j = 0; j sortableColumns.length; j+) if (i = sortableColumnsj) return true; else return true; return false; /* * mouseClicked * The real Method to add mouselistener to JTable.Due to the * SortHeaderRender is a inner class of this class.So the sortcolumn user * want can share and be managed in whole class field. * Chinese Description: * * 这个才是真正的处理排序的方法之一，它对JTable添加鼠标时间侦听。获得用户想排序的某行，由于SortHeaderRender是内部类，所以可以共享其数据并处理。 * * param table JTable */ public void addMouseListener(final JTable table) table.getTableHeader().addMouseListener(new MouseAdapter() public void mouseClicked(MouseEvent mouseevent) int i = table.columnAtPoint(mouseevent.getPoint(); int j = table.convertColumnIndexToModel(i); /转换出用户想排序的列和底层数据的列，然后判断 if (!columnIsSortable(j) return; if (j = sortColumn) ascending = !ascending; else ascending = true; sortColumn = j; sort(); ); /* * sort * The main method to sort the rows depends on the specify column to * sort. * Chinese Descriptions: * 主要调用排序的方法。 * Fix bug:table.UpdateUI();- * table.recalidate(); * table.repaint(); * * see #resetData() */ public void sort() if (rows = null) return; else (AbstractTableModel) dataModel).removeTableModelListener(this); Arrays.sort(rows); resetData(); (AbstractTableModel) dataModel).fireTableDataChanged(); (AbstractTableModel) dataModel).addTableModelListener(this); table.revalidate(); table.repaint(); return; /* * resetData * * The last step to sort.We reset the sorted to the table and show the * changes. * * Chinese Descriptions: * * 排序的最后一步，把排好序的数据重新返回table里面。 * * see #sort() */ public void resetData() Vector data=new Vector(dataModel.getRowCount(); int i=0; for(;idataModel.getRowCount();i+) int j=0; final Vector vv=new Vector(dataModel.getColumnCount(); for(;jdataModel.getColumnCount();j+) vv.add(dataModel.getValueAt(i,j); data.add(vv); i=0; for(;irows.length;i+) if(rowsi.index!=i) int j=0; final Vector vv=(Vector)data.get(rowsi.index); for(;jdataModel.getColumnCount();j+) dataModel.setValueAt(vv.get(j),i,j); public void tableChanged(TableModelEvent tablemodelevent) reinitialize(); private class SortHeaderRenderer extends DefaultTableCellRenderer public Component getTableCellRendererComponent(JTable jtable, Object obj, boolean flag, boolean flag1, int i, int j) if (jtable != null) JTableHeader jtableheader = jtable.getTableHeader(); if (jtableheader != null) setForeground(jtableheader.getForeground(); setBackground(jtableheader.getBackground(); setFont(jtableheader.getFont(); setText(obj != null ? obj.toString() : ); int k = jtable.convertColumnIndexToModel(j); if (k = sortColumn) setIcon(ascending ? SortManager.upIcon : SortManager.downIcon); else setIcon(null); setBorder(UIManager.getBorder(TableHeader.cellBorder); return this; private class Row implements Comparable private Row() /* public int compareTo(Object obj) int result=compare(obj); Row row = (Row) obj; Vector row1=new Vector(dataModel.getColumnCount(); Vector row2=new Vector(dataModel.getColumnCount(); int i=0; for(;i=0) else int j=0; for(;jdataModel.getColumnCount();j+) dataModel.setValueAt(row1.get(j),row.index,j); dataModel.setValueAt(row2.get(j),index,j); return result; */ public int compareTo(Object obj) Row row = (Row) obj; /bug found and fixed by chenxing 05.1.24.Support Local String sorting,such as /Chinese. /Chinese Descriptions: /支持本地字符的比较排序，例如：中文排序。 java.text.Collator cnCollator = java.text.Collator.getInstance(Locale.getDefault(); / Object obj1 = dataModel.getValueAt(index, sortColumn); Object obj2 = dataModel.getValueAt(row.index, sortColumn); if (ascending) if (!(obj1 instanceof Comparable) return -1; if (!(obj2 instanceof Comparable) return 1; else / if(obj1 instanceof String|obj2 instanceof String) / return cnCpare(obj1,obj2); / / else / / return (Comparable) obj1).compareTo(obj2); / if (!(obj1 instanceof Comparable) return 1; if (!(obj2 instanceof Comparable) return -1; else / if(obj1 instanceof String|obj2 instanceof String) / return cnCpare(obj2,obj1); / / else / / return (Comparable) obj2).compareTo(obj1); / public int index; package org.swing2cn.util;import java.awt.*;import javax.swing.*;public class UpDownArrow implements Icon /* * size * * The size of the Direcation Icon.Due to the Icon is square,the height and * width of Icon is this value. * * Chinese Description: * * 图标的大小，由于图标为正方形，所以高和宽都返回该值。 * * */ private int size = 12; /* * UP * * Static value of direction for this class. * * */ public static final int U