filterdialog.java

来自「Rapla是一个灵活的多用户资源管理系统。它提供的一些功能有：日历GUI」· Java 代码 · 共 153 行

/*--------------------------------------------------------------------------*
 | Copyright (C) 2006 Christopher Kohlhaas                                  |
 |                                                                          |
 | This program is free software; you can redistribute it and/or modify     |
 | it under the terms of the GNU General Public License as published by the |
 | Free Software Foundation. A copy of the license has been included with   |
 | these distribution in the COPYING file, if not go to www.fsf.org         |
 |                                                                          |
 | As a special exception, you are granted the permissions to link this     |
 | program with every library, which license fulfills the Open Source       |
 | Definition as published by the Open Source Initiative (OSI).             |
 *--------------------------------------------------------------------------*/
package org.rapla.gui.internal.edit;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.ArrayList;

import javax.swing.AbstractAction;
import javax.swing.BorderFactory;
import javax.swing.JPanel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import org.apache.avalon.framework.activity.Disposable;
import org.apache.avalon.framework.container.ContainerUtil;
import org.rapla.framework.RaplaContext;
import org.rapla.framework.RaplaException;
import org.rapla.gui.RaplaGUIComponent;
import org.rapla.gui.internal.common.CalendarSelectionModel;
import org.rapla.gui.toolkit.DialogUI;

public class FilterDialog extends RaplaGUIComponent
    implements
        Disposable
{

    boolean isResourceOnly;
    public FilterDialog(RaplaContext sm, boolean isResourceOnly) throws RaplaException {
        super(sm);
        this.isResourceOnly = isResourceOnly;
    }


    protected DialogUI dlg;
    ArrayList listenerList = new ArrayList();
    CalendarSelectionModel filterObj;
    ClassifiableFilterEdit ui;
    Listener listener = new Listener();


    public void start(CalendarSelectionModel editObj,String title,Component owner, boolean modal)
        throws
            RaplaException
    {
        filterObj = (CalendarSelectionModel) editObj;
        String buttons[];
        if (dlg != null && dlg.isVisible()) {
            dlg.close();
        }
        ContainerUtil.dispose(ui);
        ui = new ClassifiableFilterEdit( getContext(), isResourceOnly);
        JPanel mainPanel = new JPanel();

        mainPanel.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
        ui.setFilter(filterObj);

        mainPanel.setLayout(new BorderLayout());
        mainPanel.add(ui.getComponent(), BorderLayout.CENTER);
        buttons = new String[] {
            getString("ok")
            ,getString("apply")
            ,getString("cancel")
        };

        dlg = DialogUI.create(getContext(),owner,modal,mainPanel,buttons);
        dlg.getButton(0).setAction(listener);
        dlg.getButton(1).setAction(listener);
        dlg.getButton(2).setAction(listener);
        dlg.getButton(2).setIcon(getIcon("icon.abort"));
        dlg.setTitle(getI18n().format("edit.format",title));
        dlg.start();
        dlg.addWindowListener(new WindowAdapter() {
                    public void windowClosed(WindowEvent evt) {
                        dispose();
                    }
            });
    }

    public void addChangeListener(ChangeListener listener) {
        listenerList.add(listener);
    }

    public void removeChangeListener(ChangeListener listener) {
        listenerList.remove(listener);
    }

    public ChangeListener[] getChangeListeners() {
        return (ChangeListener[])listenerList.toArray(new ChangeListener[]{});
    }

    protected void fireFilterChanged() {
        if (listenerList.size() == 0)
            return;
        ChangeEvent evt = new ChangeEvent(this);
        ChangeListener[] listeners = getChangeListeners();
        for (int i = 0;i<listeners.length; i++) {
            listeners[i].stateChanged(evt);
        }
    }

    public void dispose() {
        if (dlg != null)
            dlg.close();
        ContainerUtil.dispose(ui);
        getLogger().debug("FilterDialog disposed");
    }


    class Listener extends AbstractAction {
        private static final long serialVersionUID = 1L;

        public void actionPerformed(ActionEvent evt) {
            try {
                // cancel pressed
                if (evt.getSource() == dlg.getButton(2)) {
                    dlg.close();
                    return;
                }
                filterObj.setFilter( ui.getFilters() );
                fireFilterChanged();
                // ok pressed
                if (evt.getSource() == dlg.getButton(0)) {
                    dlg.close();
                }
            } catch (Exception ex) {
                showException(ex,dlg);
            }
        }
    }

}