/*
 * CollectionSpanGridDemo.java
 *
 * Copyright 2000 Eliad Technologies, Inc. All Rights Reserved.
 *
 * This software is the proprietary information of Eliad Technologies, Inc.
 */

package example09;

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.eliad.swing.*;
import com.eliad.util.*;
import com.eliad.model.*;


/**
 * This class demonstrates the use of {@link com.eliad.model.GenericCollectionSpanModel}.
 * @author Daniel Rosenblatt
 * @version 1.0
 */

public class CollectionSpanGridDemo extends JFrame {
  private JSmartGrid grid_;
  private GenericCollectionSpanModel spanModel_ = new GenericCollectionSpanModel();
  private void doSpan(boolean on) {
    GridSelectionModel gsm = grid_.getSelectionModel();
    if (gsm.isSelectionEmpty())
      return;
    int firstRow=gsm.getFirstSelectedRow();
    int rowCount=gsm.getLastSelectedRow() - firstRow + 1;
    int firstColumn=gsm.getFirstSelectedColumn();
    int columnCount=gsm.getLastSelectedColumn() - firstColumn + 1;
    Iterator spans=grid_.spanIterator(firstRow, firstColumn, rowCount, columnCount, false);
    while (spans.hasNext()) {
      ExtentCell span=(ExtentCell)spans.next();
      spanModel_.removeSpan(span.getRow(),span.getColumn());
    }
    if (on)
      spanModel_.addSpan(firstRow,firstColumn, rowCount, columnCount);
  }

  private void addMenuBar() {
    JMenuBar menuBar = new JMenuBar();
    
    JMenu fileMenu = new JMenu("File");
    menuBar.add(fileMenu);
    JMenuItem exitMenuItem = new JMenuItem("Exit");
    
    exitMenuItem.addActionListener(
      new ActionListener () {
        public void actionPerformed (ActionEvent evt) {
          System.exit(0);
        }
      }
    );
    fileMenu.add(exitMenuItem);
    JMenu toolsMenu = new JMenu("Tools");
    menuBar.add(toolsMenu);

    JMenuItem spanOnMenuItem = new JMenuItem("Span On");
    spanOnMenuItem.addActionListener(
      new ActionListener () {
        public void actionPerformed (ActionEvent evt) {
          doSpan(true);
        }
      }
    );

    JMenuItem spanOffMenuItem = new JMenuItem("Span Off");
    spanOffMenuItem.addActionListener(
      new ActionListener () {
        public void actionPerformed (ActionEvent evt) {
          doSpan(false);
        }
      }
    );

    toolsMenu.add(spanOnMenuItem);
    toolsMenu.add(spanOffMenuItem);
    
    setJMenuBar(menuBar);
  }
  public CollectionSpanGridDemo() {
    super("Collection Span Example");
    addWindowListener (
      new WindowAdapter () {
        public void windowClosing (WindowEvent evt) {
          System.exit(0);
        }
      }
    );

    grid_ = new JSmartGrid();
    grid_.setSpanModel(spanModel_);
    for (int col = 0; col < grid_.getColumnCount();  col++) {
      grid_.setColumnWidth(col, 50);
      for (int row = 0; row < grid_.getRowCount();  row++)
        grid_.setValueAt("" + row + col, row, col);
    }
    grid_.setSelectionMode(GridSelectionModel.SINGLE_RECTANGLE_SELECTION);
    grid_.setAutoCreateColumnHeader(true);
    grid_.setAutoCreateRowHeader(true);
    grid_.setColumnAutoResizeMode(JSmartGrid.AUTO_RESIZE_OFF);
    grid_.getModel().addGridModelListener(spanModel_);
    
    JScrollPane js = new JScrollPane(grid_);
    getContentPane().add(js, BorderLayout.CENTER);
    addMenuBar();

    pack();
  }
  
  public static void main(String[] args) {
    CollectionSpanGridDemo sg = new CollectionSpanGridDemo();

    Dimension big=Toolkit.getDefaultToolkit().getScreenSize();
    Dimension small=sg.getSize();
    sg.setLocation((big.width-small.width)/2,
                   (big.height-small.height)/2);

    sg.setVisible(true);
  }
}