cz/vutbr/fit/dudka/SGVis/Main.java

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package cz.vutbr.fit.dudka.SGVis;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.KeyEvent;
import java.net.MalformedURLException;
import java.net.URL;

import javax.swing.BorderFactory;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JToolBar;
import javax.swing.border.TitledBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import cz.vutbr.fit.dudka.SGVis.Data.Statistics;
import cz.vutbr.fit.dudka.SGVis.Visual.GraphDisplay;
import cz.vutbr.fit.dudka.SGVis.Visual.GraphView;
import cz.vutbr.fit.dudka.SGVis.Visual.LookupWorker;

public class Main extends JFrame {
  private static final long serialVersionUID = 1L;
  private JPanel jContentPane = null;
  private JMenuBar jJMenuBar = null;
  private JMenu visMenu = null;
  private JMenuItem menuItemZootmToFit = null;
  private JMenuItem menuItemNewVis = null;
  private JToolBar statusBar = null;
  private JLabel statusText = null;
  final private GraphView gview;
  private JMenuItem menuItemStatistics = null;
  private JMenu helpMenu = null;
  private JMenuItem menuItemHelp = null;

  private Main(GraphView gview) {
    super();
    this.gview = gview;
    initialize();
    gview.addStatusListener(new ChangeListener() {
      public void stateChanged(ChangeEvent e) {
        GraphView gv = (GraphView) e.getSource();
        statusText.setText(gv.getStatus());
        statusText.setForeground(
            gv.isStatusError()?
                Color.RED:
                Color.BLACK
            );
        getStatusBar().invalidate();
      } 
    });
        getJContentPane().add(new GraphDisplay(gview));
        this.pack();
    this.setExtendedState(JFrame.MAXIMIZED_BOTH);
  }

  private void initialize() {
    this.setSize(1024, 768);
    this.setJMenuBar(getJJMenuBar());
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setMinimumSize(new Dimension(480, 320));
    this.setContentPane(getJContentPane());
    this.setTitle(Config.APP_NAME);
  }

  private JPanel getJContentPane() {
    if (jContentPane == null) {
      jContentPane = new JPanel();
      jContentPane.setLayout(new BorderLayout());
      jContentPane.add(getStatusBar(), BorderLayout.SOUTH);
    }
    return jContentPane;
  }

  private JMenuBar getJJMenuBar() {
    if (jJMenuBar == null) {
      jJMenuBar = new JMenuBar();
      jJMenuBar.add(getVisMenu());
      jJMenuBar.add(getHelpMenu());
    }
    return jJMenuBar;
  }

  private JMenu getVisMenu() {
    if (visMenu == null) {
      visMenu = new JMenu();
      visMenu.setText("Visualization");
      visMenu.setMnemonic(KeyEvent.VK_V);
      visMenu.add(getMenuItemNewVis());
      visMenu.addSeparator();
      visMenu.add(getMenuItemZootmToFit());
      visMenu.add(getMenuItemStatistics());
    }
    return visMenu;
  }

  private JMenuItem getMenuItemZootmToFit() {
    if (menuItemZootmToFit == null) {
      menuItemZootmToFit = new JMenuItem();
      menuItemZootmToFit.setText("Zoom to fit");
      menuItemZootmToFit.setMnemonic(KeyEvent.VK_Z);
      menuItemZootmToFit.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent e) {
          gview.zoomToFit();
        }
      });
    }
    return menuItemZootmToFit;
  }

  private JMenuItem getMenuItemNewVis() {
    final Component obj = this;
    if (menuItemNewVis == null) {
      menuItemNewVis = new JMenuItem();
      menuItemNewVis.setText("New visualization");
      menuItemNewVis.setMnemonic(KeyEvent.VK_N);
      menuItemNewVis.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent e) {
          if (0!=gview.getNodeCount() &&
              JOptionPane.OK_OPTION != JOptionPane.showConfirmDialog(
                obj,
                "This will erase current visualization.",
                Config.APP_NAME,
                JOptionPane.OK_CANCEL_OPTION))
            return;
          String urlString = JOptionPane.showInputDialog(
              obj,
              "Type URL to look for:",
              /*Config.APP_NAME,
              JOptionPane.QUESTION_MESSAGE,
              null, null,*/
              Config.DEF_LOOKUP_FOR);
          if (null==urlString)
            return;
          try {
            URL url = new URL(urlString);
            gview.clear();
            gview.lookup(url);
          } catch (MalformedURLException e1) {
            JOptionPane.showMessageDialog(
                obj,
                "Invalid URL",
                Config.APP_NAME,
                JOptionPane.ERROR_MESSAGE);
            e1.printStackTrace();
          }
        }
      });
    }
    return menuItemNewVis;
  }

  private JToolBar getStatusBar() {
    if (statusBar == null) {
      GridLayout gridLayout = new GridLayout();
      gridLayout.setRows(1);
      statusText = new JLabel();
      statusText.setText(" ");
      statusText.setFont(new Font("Dialog", Font.BOLD, 18));
      statusBar = new JToolBar();
      statusBar.setLayout(gridLayout);
      statusBar.setFloatable(false);
      statusBar.add(statusText);
    }
    return statusBar;
  }

  private JMenuItem getMenuItemStatistics() {
    final Component obj = this;
    if (menuItemStatistics == null) {
      menuItemStatistics = new JMenuItem();
      menuItemStatistics.setText("Statistics");
      menuItemStatistics.setMnemonic(KeyEvent.VK_S);
      menuItemStatistics.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent e) {
          JPanel panel = new JPanel(new GridLayout(3,0));
          panel.add(createGlobalStats());
          panel.add(createViewStats());
          panel.add(createLookupStats());
          JOptionPane pane = new JOptionPane(panel);
          JDialog dialog = pane.createDialog(obj, Config.APP_NAME + " - statistics");
          dialog.setVisible(true);
        }
        private JPanel createGlobalStats() {
          final int FIELD_CNT = 3;
          String names[] = new String[FIELD_CNT];
          String values[] = new String[FIELD_CNT];
          Statistics stats = gview.getStorage().getStatistics();
          names[0] = "Hosts";   values[0] = String.valueOf(stats.getHosts());
          names[1] = "URLs";    values[1] = String.valueOf(stats.getUrls());
          names[2] = "Relations"; values[2] = String.valueOf(stats.getRels());
          return createBox(names, values, "Downloaded data statistics");
        }
        private JPanel createViewStats() {
          final int FIELD_CNT = 3;
          String names[] = new String[FIELD_CNT];
          String values[] = new String[FIELD_CNT];
          names[0] = "Nodes";   values[0] = String.valueOf(gview.getNodeCount());
          names[1] = "Edges";   values[1] = String.valueOf(gview.getEdgeCount());
          names[2] = null;    values[2] = " ";
          return createBox(names, values, "View statistics");
        }
        private JPanel createLookupStats() {
          final int FIELD_CNT = 3;
          String names[] = new String[FIELD_CNT];
          String values[] = new String[FIELD_CNT];
          //names[0] = "Total lookups";   values[0] = String.valueOf(LookupWorker.getTotalCount());
          names[0] = "Pending"; values[0] = String.valueOf(LookupWorker.getActiveCount());
          names[1] = "Finished";  values[1] = String.valueOf(LookupWorker.getSuccessCount());
          names[2] = "Failed";  values[2] = String.valueOf(LookupWorker.getFailedCount());
          return createBox(names, values, "Lookup statistics");
        }
        private JPanel createBox(String[] names, String[] values, String title) {
          final int CNT = Math.min(names.length,values.length);
          JPanel panel = new JPanel(new GridLayout(CNT,2));
          //panel.setBorder(BorderFactory.createEmptyBorder(15, 15, 15, 15));
          panel.setBorder(BorderFactory.createTitledBorder(null, title, TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, new Font("Dialog", Font.BOLD, 12), new Color(51, 51, 51)));
          for(int i=0; i<CNT; i++) {
            String nameText = names[i];
            if (null==nameText)
              nameText = "";
            else
              nameText += ":";
            JLabel name = new JLabel(nameText);
            panel.add(name);
            JLabel value = new JLabel(values[i]);
            value.setHorizontalAlignment(JLabel.RIGHT);
            panel.add(value);
          }
          return panel;
        }
      });
    }
    return menuItemStatistics;
  }

  private JMenu getHelpMenu() {
    if (helpMenu == null) {
      helpMenu = new JMenu();
      helpMenu.setText("Help");
      helpMenu.add(getMenuItemHelp());
      helpMenu.setMnemonic(KeyEvent.VK_H);
    }
    return helpMenu;
  }

  private JMenuItem getMenuItemHelp() {
    final Component obj = this;
    if (menuItemHelp == null) {
      menuItemHelp = new JMenuItem();
      menuItemHelp.setText("Quick help");
      menuItemHelp.setMnemonic(KeyEvent.VK_H);
      menuItemHelp.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent e) {
          JPanel panel = new JPanel(new GridLayout(2,0));
          panel.add(createNodeHelp());
          panel.add(createVisHelp());
          JOptionPane pane = new JOptionPane(panel);
          JDialog dialog = pane.createDialog(obj, Config.APP_NAME + " - quick help");
          dialog.setModal(false);
          dialog.setVisible(true);
        }
        private JPanel createNodeHelp() {
          final int FIELD_CNT = 3;
          String names[] = new String[FIELD_CNT];
          String values[] = new String[FIELD_CNT];
          names[0] = "Arrange visualiztion";  values[0] = "mouse left click on node";
          names[1] = "Move node";       values[1] = "drag&drop (mouse left button)";
          names[2] = "Node options";      values[2] = "mouse right click on node";
          return createBox(names, values, "Node oprations");
        }
        private JPanel createVisHelp() {
          final int FIELD_CNT = 3;
          String names[] = new String[FIELD_CNT];
          String values[] = new String[FIELD_CNT];
          names[0] = "Move visualization";  values[0] = "drag&drop (mouse left button not over node)";
          names[1] = "Zoom";          values[1] = "mouse wheel";
          names[2] = "Zoom to fit";     values[2] = "mouse right click (not over node)";
          return createBox(names, values, "Visualization operations");
        }
        private JPanel createBox(String[] names, String[] values, String title) {
          final int CNT = Math.min(names.length,values.length);
          JPanel panel = new JPanel(new GridLayout(CNT,2));
          panel.setBorder(BorderFactory.createTitledBorder(null, title, TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, new Font("Dialog", Font.BOLD, 12), new Color(51, 51, 51)));
          for(int i=0; i<CNT; i++) {
            String nameText = names[i];
            panel.add(new JLabel(nameText));
            panel.add(new JLabel(values[i]));
          }
          return panel;
        }
      });
    }
    return menuItemHelp;
  }

  public static void main(String[] args) {
    try {
      GraphView gv = new GraphView();
      Main mainFrame = new Main(gv);
      mainFrame.setVisible(true);
      gv.lookup(new URL(Config.DEF_LOOKUP_FOR));
    } catch (Exception e) {
      // TODO: handle exception
      e.printStackTrace();
    }
  }
}

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