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/* Glazed Lists (c) 2003-2006 */
/* http://publicobject.com/glazedlists/ publicobject.com,*/
/* O'Dell Engineering Ltd.*/
package com.publicobject.amazonbrowser.swing;
import ca.odell.glazedlists.*;
import ca.odell.glazedlists.impl.testing.ListConsistencyListener;
import ca.odell.glazedlists.matchers.SearchEngineTextMatcherEditor;
import ca.odell.glazedlists.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.net.URL;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.swing.*;
import javax.swing.table.*;
import com.publicobject.amazonbrowser.*;
import com.publicobject.misc.Exceptions;
import com.publicobject.misc.swing.ExceptionHandlerFactory;
import com.publicobject.misc.swing.GradientPanel;
import com.publicobject.misc.swing.MacCornerScrollPaneLayoutManager;
import com.publicobject.misc.swing.RoundedBorder;
/**
* An AmazonBrowser is a program for searching and viewing products from amazon.com.
*
* @author James Lemieux
*/
public class AmazonBrowser implements Runnable {
/** application appearance */
public static final Color CLEAR = new Color(0, 0, 0, 0);
public static final Color AMAZON_SEARCH_LIGHT_BLUE = new Color(171, 208, 226);
public static final Color AMAZON_SEARCH_DARK_BLUE = new Color(54, 127, 168);
public static final Color AMAZON_TAB_LIGHT_BEIGE = new Color(251, 252, 252);
public static final Icon GO = loadIcon("resources/go.gif");
/** an event list to host the items */
private EventList itemEventList = new BasicEventList();
/** the TreeList backing the EventTableModel that models the treetable data. */
private TreeList treeList;
/** the TableModel backing the treetable of items */
private AdvancedTableModel itemTableModel;
/** the ListSelectionModel backing the treetable of items */
private AdvancedListSelectionModel itemTableSelectionModel;
/** loads items as requested */
private ItemLoader itemLoader;
/** the field containing the keywords to search items with */
private JTextField searchField;
/** the progress bar that tracks the item loading progress */
private JProgressBar progressBar;
/** the field containing the terms to filter the treetable of items with */
private JTextField filterField;
/** the application window */
private JFrame frame;
/**
* Loads the AmazonBrowser as standalone application.
*/
public void run() {
constructStandalone();
// create the issue loader and start loading issues
itemLoader = new ItemLoader(itemEventList, progressBar);
itemLoader.start();
}
/**
* Load the specified icon from the pathname on the classpath.
*/
private static ImageIcon loadIcon(String pathname) {
ClassLoader jarLoader = AmazonBrowser.class.getClassLoader();
URL url = jarLoader.getResource(pathname);
if (url == null) return null;
return new ImageIcon(url);
}
/**
* Constructs the browser as a standalone frame.
*/
private void constructStandalone() {
// we have advice for the user when we cannot connect to a host
Exceptions.getInstance().addHandler(ExceptionHandlerFactory.unknownHostExceptionHandler(frame));
Exceptions.getInstance().addHandler(ExceptionHandlerFactory.connectExceptionHandler(frame));
Exceptions.getInstance().addHandler(ExceptionHandlerFactory.noRouteToHostExceptionHandler(frame));
Exceptions.getInstance().addHandler(ExceptionHandlerFactory.accessControlExceptionHandler(frame));
Exceptions.getInstance().addHandler(ExceptionHandlerFactory.ioExceptionCode500Handler(frame));
frame = new JFrame("Amazon Browser");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(800, 600);
frame.setLocationRelativeTo(null);
frame.getContentPane().setLayout(new BorderLayout());
frame.getContentPane().add(constructView(), BorderLayout.CENTER);
frame.setVisible(true);
}
/**
* Construct a frame for search and browsing items from Amazon.
*/
private JPanel constructView() {
final JLabel filterFieldLabel = new JLabel("Filter");
filterFieldLabel.setFont(new Font("Verdana", Font.BOLD, 14));
filterFieldLabel.setForeground(Color.WHITE);
filterField = new JTextField(10);
final SearchEngineTextFieldMatcherEditor filterFieldMatcherEditor = new SearchEngineTextFieldMatcherEditor(filterField, new ItemTextFilterator());
final Set> filterFields = new HashSet>();
filterFields.add(new SearchEngineTextMatcherEditor.Field("title", new TitleTextFilterator()));
filterFields.add(new SearchEngineTextMatcherEditor.Field("director", new DirectorTextFilterator()));
filterFieldMatcherEditor.setFields(filterFields);
// sort the original items list
final SortedList sortedItemsList = new SortedList(itemEventList, null);
final FilterList filteredItemsList = new FilterList(sortedItemsList, filterFieldMatcherEditor);
final StartNewSearchActionListener startNewSearch = new StartNewSearchActionListener();
final JLabel searchFieldLabel = new JLabel("Search");
searchFieldLabel.setFont(new Font("Verdana", Font.BOLD, 14));
searchFieldLabel.setForeground(Color.WHITE);
searchField = new JTextField(10);
searchField.addActionListener(startNewSearch);
final JButton searchButton = new JButton(GO);
searchButton.setBorder(BorderFactory.createEmptyBorder());
searchButton.setContentAreaFilled(false);
searchButton.addActionListener(startNewSearch);
progressBar = new JProgressBar();
progressBar.setString("");
progressBar.setStringPainted(true);
progressBar.setBorder(BorderFactory.createLineBorder(AMAZON_SEARCH_DARK_BLUE, 2));
final TreeCriteriaEditor treeCriteriaEditor = new TreeCriteriaEditor(TreeCriterion.ALL_CRITERIA);
treeCriteriaEditor.addPropertyChangeListener("activeCriteria", new ActiveCriteriaPropertyChangeListener());
treeCriteriaEditor.setOpaque(false);
treeCriteriaEditor.setBorder(new RoundedBorder(CLEAR, AMAZON_SEARCH_DARK_BLUE, AMAZON_SEARCH_LIGHT_BLUE, 8, 1));
final JPanel editorPanel = new JPanel(new GridBagLayout());
editorPanel.setBackground(AMAZON_SEARCH_DARK_BLUE);
editorPanel.add(treeCriteriaEditor, new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 5, 0, 5), 0, 0));
editorPanel.add(Box.createVerticalStrut(1), new GridBagConstraints(0, 1, 1, 1, 0.0, 1.0, GridBagConstraints.CENTER, GridBagConstraints.VERTICAL, new Insets(0, 0, 0, 0), 0, 0));
final JPanel searchPanel = new GradientPanel(AMAZON_SEARCH_LIGHT_BLUE, AMAZON_SEARCH_DARK_BLUE, true);
searchPanel.setLayout(new GridBagLayout());
searchPanel.add(searchFieldLabel, new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 10, 0, 3), 0, 0));
searchPanel.add(searchField, new GridBagConstraints(1, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 5), 0, 0));
searchPanel.add(searchButton, new GridBagConstraints(2, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 10), 0, 0));
searchPanel.add(progressBar, new GridBagConstraints(3, 0, 1, 1, 1.0, 1.0, GridBagConstraints.CENTER, GridBagConstraints.HORIZONTAL, new Insets(0, 0, 0, 10), 0, 0));
searchPanel.add(filterFieldLabel, new GridBagConstraints(4, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 5), 0, 0));
searchPanel.add(filterField, new GridBagConstraints(5, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 10), 0, 0));
searchPanel.add(Box.createVerticalStrut(65), new GridBagConstraints(6, 0, 1, 1, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
final EventList swingFilteredItemsList = GlazedListsSwing.swingThreadProxyList(filteredItemsList);
treeList = new TreeList(swingFilteredItemsList, new ItemTreeFormat(treeCriteriaEditor.getActiveCriteria()), TreeList.nodesStartExpanded());
// create a JTable to display the items
itemTableModel = GlazedListsSwing.eventTableModel(treeList, new ItemTableFormat());
itemTableSelectionModel = GlazedListsSwing.eventSelectionModel(treeList);
final JTable itemTable = new StripedTable(itemTableModel, null, itemTableSelectionModel);
JScrollPane itemScrollPane = new JScrollPane(itemTable, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
itemScrollPane.setBorder(BorderFactory.createEmptyBorder());
MacCornerScrollPaneLayoutManager.install(itemScrollPane);
// add sorting to the table
TableComparatorChooser.install(itemTable, sortedItemsList, TableComparatorChooser.MULTIPLE_COLUMN_KEYBOARD);
// add a hierarchical column to the table
ListConsistencyListener listConsistencyListener = ListConsistencyListener.install(treeList);
listConsistencyListener.setPreviousElementTracked(false);
final TreeTableSupport treeTableSupport = TreeTableSupport.install(itemTable, treeList, 2);
treeTableSupport.setDelegateRenderer(new TitleRenderer());
// build a panel for the search panel and results table
final JPanel panel = new JPanel(new BorderLayout());
panel.add(BorderLayout.NORTH, searchPanel);
panel.add(BorderLayout.WEST, editorPanel);
panel.add(BorderLayout.CENTER, itemScrollPane);
return panel;
}
/**
* When started via a main method, this creates a standalone issues browser.
*/
public static void main(final String[] args) {
SwingUtilities.invokeLater(new AmazonBrowserStarter());
}
/**
* This Runnable contains the logic to start the IssuesBrowser application.
* It is guaranteed to be executed on the EventDispatch Thread.
*/
private static class AmazonBrowserStarter implements Runnable {
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
// do nothing - fall back to default look and feel
}
final AmazonBrowser browser = new AmazonBrowser();
browser.run();
}
}
/**
* Notified when the user wishes to begin a new Search of Amazon Items.
*/
private class StartNewSearchActionListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
final String keywords = searchField.getText();
if (keywords.length() > 0)
itemLoader.setKeywords(keywords);
}
}
/**
* Watch the TreeCriteriaEditor for changes to its "activeCriteria"
* property and respond by updating the TreeFormat used by the
* AmazonBrowser treetable to respect the new tree criteria.
*/
private class ActiveCriteriaPropertyChangeListener implements PropertyChangeListener {
public void propertyChange(PropertyChangeEvent evt) {
final List treeCriteria = (List) evt.getNewValue();
treeList.setTreeFormat(new ItemTreeFormat(treeCriteria));
}
}
/**
* A custom table that stripes the rows to help ensure our
* TreeTableCellPanel handles cosmetic customizations (background,
* foreground, font, etc).
*/
private static class StripedTable extends JTable {
public StripedTable(TableModel dm, TableColumnModel cm, ListSelectionModel sm) {
super(dm, cm, sm);
setSurrendersFocusOnKeystroke(true);
}
@Override
public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
return normalize(super.prepareRenderer(renderer, row, column), row);
}
@Override
public Component prepareEditor(TableCellEditor editor, int row, int column) {
return normalize(super.prepareEditor(editor, row, column), row);
}
/**
* This method applies some common formatting to the given Component
* which is either a renderer or editor component.
*/
private Component normalize(Component c, int row) {
if (!isRowSelected(row))
c.setBackground(row % 2 == 0 ? Color.WHITE : AMAZON_SEARCH_LIGHT_BLUE);
return c;
}
}
private static final class TitleTextFilterator implements TextFilterator {
public void getFilterStrings(List baseList, Item element) {
baseList.add(element.getItemAttributes().getTitle());
}
}
private static final class DirectorTextFilterator implements TextFilterator {
public void getFilterStrings(List baseList, Item element) {
baseList.add(element.getItemAttributes().getDirector());
}
}
/**
* A special renderer for the Title column (which renders the hierarchy)
* which is given access to the hierarchy data for rendering. It uses this
* hierarchy data to make all hierarchy text gray and all leaf text black.
*/
private static final class TitleRenderer extends AbstractTreeTableNodeDataRenderer {
/** The delegate renderer that does most of the rendering. We simply tweak the result. */
private TableCellRenderer delegate = new DefaultTableCellRenderer();
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
// fetch the component from the delegate renderer
final JLabel label = (JLabel) delegate.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
// selected rows always have white text, otherwise parent nodes are gray and leaf nodes are black
if (isSelected)
label.setForeground(Color.WHITE);
else
label.setForeground(hasChildren() ? Color.GRAY : Color.BLACK);
return label;
}
}
}
