zresizedialog.java

用Java写的报表.功能如下: 0.内建网络打印,网络预览功能！ 1.文件操作。包括url 指定的文件。 2.全功能打印支持。包括打印预览。 3.Undo 和 redo。 4.合并单元格。 5.Cel

package ezcell;

import javax.swing.*;
import javax.swing.event.*;
import  java.awt.event.*;
import  javax.swing.border.*;
/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2001</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */

public class ZResizeDialog  extends JDialog
        implements ActionListener {
    private static ZResizeDialog sharedInstance;
    private final static int TEXT_FIELD_SIZE = 20;
    private final static int COMPONENT_GAP = 10;
    private final static Border EMPTY_BORDER = new EmptyBorder(5, 5, 5, 5);
    private JTextField data;
    private JLabel label;
    private JPanel sizePanel;
    private JPanel commandPanel;
    private JButton okButton;
    private JButton cancelButton;
    private int size;
    private int option;

    ZResizeDialog (JFrame owner) {
        super(owner, "", true);
        setSize(280, 100);
        setDefaultCloseOperation(JDialog.HIDE_ON_CLOSE);
        setResizable(false);
        // row data
        data = new JTextField(TEXT_FIELD_SIZE);
        data.setMaximumSize(data.getPreferredSize());
        label = new JLabel("     Row Height:");
        label.setLabelFor(data);
        sizePanel = new JPanel();
        sizePanel.setBorder(EMPTY_BORDER);
        sizePanel.setLayout(new BoxLayout(sizePanel, BoxLayout.X_AXIS));
        sizePanel.add(label);
        sizePanel.add(Box.createHorizontalGlue());
        sizePanel.add(Box.createHorizontalStrut(COMPONENT_GAP));
        sizePanel.add(data);
        // buttons
        commandPanel = new JPanel();
        okButton = new JButton("Ok");
        okButton.addActionListener(this);
        commandPanel.add(okButton);
        cancelButton = new JButton("Cancel");
        cancelButton.addActionListener(this);
        commandPanel.add(cancelButton);
        JPanel panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
        panel.setBorder(EMPTY_BORDER);
        panel.add(sizePanel);
        panel.add(commandPanel);
        setContentPane(panel);
        getRootPane().setDefaultButton(okButton);
        ZToolkit.moveCenter(this);
    }

    public void actionPerformed (ActionEvent e) {
        Object o = e.getSource();
        if (o == okButton)
            processOk();
        if (o == cancelButton)
            processCancel();
    }

    private void processOk () {
        try {
            size = Integer.parseInt(data.getText());
            if (size < 0)
                throw  new Exception();
        } catch (Exception ex) {
            JOptionPane.showMessageDialog(null, "invalid value !", "alert", JOptionPane.ERROR_MESSAGE);
            return;
        }
        option = JOptionPane.OK_OPTION;
        setVisible(false);
    }

    private void processCancel () {
        setVisible(false);
    }

    public int showHeight (int h) {
        option = JOptionPane.CANCEL_OPTION;
        label.setText("     Row Height:");
        setTitle("Row Height");
        data.setText(String.valueOf(h));
        data.setSelectionStart(0);
        data.setSelectionEnd(data.getText().length() );
        data.requestFocus() ;
        show();
        return  option;
    }

    public int showWidth (int w) {
        option = JOptionPane.CANCEL_OPTION;
        label.setText("   Column Width:");
        setTitle("Column Width");
        data.setText(String.valueOf(w));
        data.setSelectionStart(0);
        data.setSelectionEnd(data.getText().length() );
        data.requestFocus() ;
        show();
        return  option;
    }

    public int getSelectedSize () {
        return  size;
    }

    public static ZResizeDialog getSharedInstance (JFrame owner) {
        if (sharedInstance == null)
            sharedInstance = new ZResizeDialog(owner);
        return  sharedInstance;
    }
}