zaurusdatabasemanager.java

hsqldb是100％java实现的数据库,是一个开放源代码的JAVA数据库 l 具有标准的SQL语法和JAVA接口 l HSQLDB可以自由使用和分发 l 非常简洁和快速的

        addMenu(bar, "Options", soptions);

        String[] shelp = { "-Show HTML-Help in browser" };

        addMenu(bar, "?", shelp);
        fMain.setMenuBar(bar);
        fMain.setSize(defWidth, defHeight);
        fMain.add("Center", this);
        initGUI();

        sRecent = new String[iMaxRecent];

        Dimension d    = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension size = fMain.getSize();

        // (ulrivo): arguments from command line or
        // full size on screen with less than 640 width
        if (d.width > 640) {
            fMain.setLocation((d.width - size.width) / 2,
                              (d.height - size.height) / 2);
        } else if (defWidth > 0 && defHeight > 0) {
            fMain.setLocation(defLocX, defLocY);
            fMain.setSize(defWidth, defHeight);
        } else {
            fMain.setLocation(0, 0);
            fMain.setSize(d);
        }

        fMain.show();

        // (ulrivo): load query from command line
        if (defQuery != null) {
            txtCommand.setText(DatabaseManagerCommon.readFile(defQuery));
        }

        txtCommand.requestFocus();
    }

    /**
     * Method declaration
     *
     *
     * @param k
     */
    public void keyTyped(KeyEvent k) {

        // Strg+Enter or Shift+Enter executes the actual SQL statement in command panel
        if (k.getKeyChar() == '\n'
                && (k.isControlDown() || k.isShiftDown())) {
            k.consume();
            execute();
            layoutCard.show(pCard, "result");
        }
    }

    public void keyPressed(KeyEvent k) {

        //  System.out.println("Key pressed: " + k.getKeyCode());
    }

    /**
     * Method declaration
     *
     *
     * @param ev
     */
    public void actionPerformed(ActionEvent ev) {

        String s = ev.getActionCommand();

        if (s == null) {
            if (ev.getSource() instanceof MenuItem) {
                MenuItem i;

                s = ((MenuItem) ev.getSource()).getLabel();
            }
        }

        if (s.equals("Execute")) {
            execute();
            layoutCard.show(pCard, "result");
        } else if (s.equals("Tree")) {
            layoutCard.show(pCard, "tree");
        } else if (s.equals("Command")) {
            layoutCard.show(pCard, "command");
        } else if (s.equals("Result")) {
            layoutCard.show(pCard, "result");
        } else if (s.equals("Editor")) {
            layoutCard.show(pCard, "editor");
        } else if (s.equals("Exit")) {
            windowClosing(null);
        } else if (s.equals("Logging on")) {
            JavaSystem.setLogToSystem(true);
        } else if (s.equals("Logging off")) {
            JavaSystem.setLogToSystem(false);
        } else if (s.equals("Refresh Tree")) {
            refreshTree();
            layoutCard.show(pCard, "tree");
        } else if (s.startsWith("#")) {
            int i = Integer.parseInt(s.substring(1));

            txtCommand.setText(sRecent[i]);
        } else if (s.equals("Connect...")) {
            connect(ZaurusConnectionDialog.createConnection(fMain, "Connect",
                    new Insets(defWidth, defHeight, defLocX, defLocY)));
            refreshTree();
            layoutCard.show(pCard, "tree");
        } else if (s.equals("View Tree")) {
            layoutCard.show(pCard, "tree");
        } else if (s.equals("View Command")) {
            layoutCard.show(pCard, "command");
        } else if (s.equals("View Result")) {
            layoutCard.show(pCard, "result");
        } else if (s.equals("View Editor")) {
            layoutCard.show(pCard, "editor");
        } else if (s.equals("Results in Grid")) {
            iResult = 0;

            pResult.removeAll();
            pResult.add("Center", gResult);
            pResult.doLayout();
            layoutCard.show(pCard, "result");
        } else if (s.equals("Open Script...")) {
            FileDialog f = new FileDialog(fMain, "Open Script",
                                          FileDialog.LOAD);

            // (ulrivo): set default directory if set from command line
            if (defDirectory != null) {
                f.setDirectory(defDirectory);
            }

            f.show();

            String file = f.getFile();

            if (file != null) {
                txtCommand.setText(
                    DatabaseManagerCommon.readFile(f.getDirectory() + file));
            }

            layoutCard.show(pCard, "command");
        } else if (s.equals("Save Script...")) {
            FileDialog f = new FileDialog(fMain, "Save Script",
                                          FileDialog.SAVE);

            // (ulrivo): set default directory if set from command line
            if (defDirectory != null) {
                f.setDirectory(defDirectory);
            }

            f.show();

            String file = f.getFile();

            if (file != null) {
                DatabaseManagerCommon.writeFile(f.getDirectory() + file,
                                                txtCommand.getText());
            }
        } else if (s.equals("Save Result...")) {
            FileDialog f = new FileDialog(fMain, "Save Result",
                                          FileDialog.SAVE);

            // (ulrivo): set default directory if set from command line
            if (defDirectory != null) {
                f.setDirectory(defDirectory);
            }

            f.show();

            String file = f.getFile();

            if (file != null) {
                showResultInText();
                DatabaseManagerCommon.writeFile(f.getDirectory() + file,
                                                txtResult.getText());
            }
        } else if (s.equals("Results in Text")) {
            iResult = 1;

            pResult.removeAll();
            pResult.add("Center", txtResult);
            pResult.doLayout();
            showResultInText();
            layoutCard.show(pCard, "result");
        } else if (s.equals("AutoCommit on")) {
            try {
                cConn.setAutoCommit(true);
            } catch (SQLException e) {}
        } else if (s.equals("AutoCommit off")) {
            try {
                cConn.setAutoCommit(false);
            } catch (SQLException e) {}
        } else if (s.equals("Commit")) {
            try {
                cConn.commit();
            } catch (SQLException e) {}
        } else if (s.equals("Insert test data")) {
            insertTestData();
            layoutCard.show(pCard, "result");
        } else if (s.equals("Rollback")) {
            try {
                cConn.rollback();
            } catch (SQLException e) {}
        } else if (s.equals("Disable MaxRows")) {
            try {
                sStatement.setMaxRows(0);
            } catch (SQLException e) {}
        } else if (s.equals("Set MaxRows to 100")) {
            try {
                sStatement.setMaxRows(100);
            } catch (SQLException e) {}
        } else if (s.equals("SELECT")) {
            showHelp(DatabaseManagerCommon.selectHelp);
        } else if (s.equals("INSERT")) {
            showHelp(DatabaseManagerCommon.insertHelp);
        } else if (s.equals("UPDATE")) {
            showHelp(DatabaseManagerCommon.updateHelp);
        } else if (s.equals("DELETE")) {
            showHelp(DatabaseManagerCommon.deleteHelp);
        } else if (s.equals("CREATE TABLE")) {
            showHelp(DatabaseManagerCommon.createTableHelp);
        } else if (s.equals("DROP TABLE")) {
            showHelp(DatabaseManagerCommon.dropTableHelp);
        } else if (s.equals("CREATE INDEX")) {
            showHelp(DatabaseManagerCommon.createIndexHelp);
        } else if (s.equals("DROP INDEX")) {
            showHelp(DatabaseManagerCommon.dropIndexHelp);
        } else if (s.equals("CHECKPOINT")) {
            showHelp(DatabaseManagerCommon.checkpointHelp);
        } else if (s.equals("SCRIPT")) {
            showHelp(DatabaseManagerCommon.scriptHelp);
        } else if (s.equals("SHUTDOWN")) {
            showHelp(DatabaseManagerCommon.shutdownHelp);
        } else if (s.equals("SET")) {
            showHelp(DatabaseManagerCommon.setHelp);
        } else if (s.equals("Test Script")) {
            showHelp(DatabaseManagerCommon.testHelp);
        } else if (s.equals("Show HTML-Help in browser")) {
            try {
                System.out.println("Starting Opera on index.html");
                Runtime.getRuntime().exec(new String[] {
                    "opera", "/home/QtPalmtop/help/html/hsqldb/index.html"
                });
            } catch (IOException e) {
                System.out.println("A problem with Opera occured.");
            }
        }
    }

    /**
     * Method declaration
     *
     */
    private void initGUI() {

        Panel pQuery   = new Panel();
        Panel pCommand = new Panel();

        // define a Panel pCard which takes four different cards/views:
        // tree of tables, command SQL text area, result window and an editor/input form
        pCard      = new Panel();
        layoutCard = new CardLayout(2, 2);

        pCard.setLayout(layoutCard);

        // four buttons at the top to quickly switch between the four views
        butTree    = new Button("Tree");
        butCommand = new Button("Command");
        butResult  = new Button("Result");
        butEditor  = new Button("Editor");

        butTree.addActionListener(this);
        butCommand.addActionListener(this);
        butResult.addActionListener(this);
        butEditor.addActionListener(this);

        Panel pButtons = new Panel();

        pButtons.setLayout(new GridLayout(1, 4, 8, 8));
        pButtons.add(butTree);
        pButtons.add(butCommand);
        pButtons.add(butResult);
        pButtons.add(butEditor);

        pResult = new Panel();

        pQuery.setLayout(new BorderLayout());
        pCommand.setLayout(new BorderLayout());
        pResult.setLayout(new BorderLayout());

        Font fFont = new Font("Dialog", Font.PLAIN, 12);

        txtCommand = new TextArea(5, 40);

        txtCommand.addKeyListener(this);

        txtResult = new TextArea(20, 40);

        txtCommand.setFont(fFont);
        txtResult.setFont(new Font("Courier", Font.PLAIN, 12));

        butExecute = new Button("Execute");

        butExecute.addActionListener(this);
        pCommand.add("South", butExecute);
        pCommand.add("Center", txtCommand);

        gResult = new Grid();

        setLayout(new BorderLayout());
        pResult.add("Center", gResult);

        tTree = new Tree();

        tTree.setMinimumSize(new Dimension(200, 100));
        gResult.setMinimumSize(new Dimension(200, 300));

        eEditor = new ZaurusEditor();

        pCard.add("tree", tTree);
        pCard.add("command", pCommand);
        pCard.add("result", pResult);
        pCard.add("editor", eEditor);
        fMain.add("Center", pCard);
        fMain.add("North", pButtons);
        doLayout();
        fMain.pack();
    }

    protected void refreshTree() {
        super.refreshTree();
        eEditor.refresh(cConn);
    }
}