Swing自定义JList

swing自定义JList

先上图，在解释

中间的每一条就是一个cell，我在这里是用的JPanel来展示cell，所以Panel上什么都可以加啦，button、label、checkbox。。。想怎么搞就怎么搞。

点击remove后会删除当前行

完整工程下载地址http://download.csdn.net/detail/jasper_success/4488517

关键代码

/** * 自定义JList,每个cell都是一个component,这个component就可以任意定义了,比如用一个JPanel来展示 * BaseList Demo 核心类 * @ClassName BaseList * @author Jet * @date 2012-8-7 */public class BaseList extends JComponent{private static final long serialVersionUID = 1L;// list的源private ListSource source;public ListSource getSource() {return source;}/** * 设置BaseList的源 * @param source ListSource类型参数 */public void setSource(ListSource source) {if (source == null) {return;} else {this.source.removeSourceRefreshListener(this);this.source = null;}this.source = source;this.source.addSourceRefreshListener(this);this.refreshData();}// 显示控件 定义一个接口private ListCellIface celliface;/** * 设置要显示的控件 * @param cell */public void setCellIface(ListCellIface cell) {this.celliface = cell;}// 所有的控件 在对当前项操作时调用此变量private List<JComponent> totalcell = new ArrayList<JComponent>();// 选中的颜色private Color selectColor = new Color(252, 233, 161);public Color getSelectColor() {return selectColor;}public void setSelectColor(Color selectColor) {this.selectColor = selectColor;}// 鼠标经过的颜色private Color passColor = new Color(196, 227, 248);public Color getPassColor() {return passColor;}public void setPassColor(Color passColor) {this.passColor = passColor;}// 选中的索引private int selectIndex = -1;/** * 选中某一行时执行此方法 * @param selectIndex */public void setSelectIndex(int selectIndex) {for (int i = 0; i < totalcell.size(); i++) {//所有项设置无背景totalcell.get(i).setOpaque(false);totalcell.get(i).setBackground(null);if (celliface != null)((ListCellIface) totalcell.get(i)).setSelect(false);}if (selectIndex < totalcell.size() && selectIndex > -1) {//为选中项设置背景totalcell.get(selectIndex).setOpaque(true);totalcell.get(selectIndex).setBackground(blist.getSelectColor());if (celliface != null)((ListCellIface) totalcell.get(selectIndex)).setSelect(true);}this.selectIndex = selectIndex;}public int getSelectIndex() {return selectIndex;}// 自身private BaseList blist = this;public BaseList() {this.setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));source = new ListSource();}/** * 刷新数据 */public void refreshData() {if (source.getAllCell().size() != 0) {//排序Collections.sort(source.getAllCell(), source.getComparator());}this.removeAll();this.totalcell.clear();for (int i = 0; i < source.getAllCell().size(); i++) {JComponent cell = null;if (celliface != null) {try {celliface = celliface.getClass().newInstance();} catch (Exception e) {e.printStackTrace();}}if (celliface == null) {cell = new JLabel(source.getAllCell().get(i).toString());cell.setMaximumSize(new Dimension(ScreenUtil.getScreeWidth(),30));cell.setPreferredSize(new Dimension(0, 30));cell.setOpaque(false);//cell.setBackground(Color.orange);} else {cell = celliface.getListCell(this, source.getAllCell().get(i));}//对整个cell添加鼠标监听事件cell.addMouseListener(new MouseAdapter() {//鼠标点击public void mouseClicked(MouseEvent e) {for (int i = 0; i < totalcell.size(); i++) {if (e.getSource().equals(totalcell.get(i))) {//当前选中项blist.setSelectIndex(i);break;}}}//鼠标移入public void mouseEntered(MouseEvent e) {for (int i = 0; i < totalcell.size(); i++) {if (i != blist.getSelectIndex()) {//非选中项if (e.getSource().equals(totalcell.get(i))) {totalcell.get(i).setOpaque(true);totalcell.get(i).setBackground(blist.getPassColor());break;}}}}//鼠标移出public void mouseExited(MouseEvent e) {JComponent jc = (JComponent) e.getSource();if (blist.getSelectIndex() < totalcell.size()) {if (blist.getSelectIndex() != -1) {if (!jc.equals(totalcell.get(blist.getSelectIndex()))) {//非选中项jc.setOpaque(false);jc.setBackground(null);}} else {jc.setOpaque(false);jc.setBackground(null);}}}});//将cell逐条加入totalcell中,在此为totalcell赋值this.totalcell.add(cell);this.add(cell);}if (blist.getSelectIndex() != -1&& blist.getSelectIndex() < source.getAllCell().size()) {//为选中项设置背景totalcell.get(blist.getSelectIndex()).setBackground(blist.getSelectColor());}this.revalidate();this.repaint();}/** * 源数据更新 * @param event */public void sourceRefreshEvent(List event) {this.refreshData();}}

下载地址http://download.csdn.net/detail/jasper_success/4488517