java.awt.TextArea#setEnabled ( )源码实例Demo

private void createInstructionUI() {
    mainFrame = new Frame("Updating TrayIcon Popup Menu Item Test");
    layout = new GridBagLayout();
    mainControlPanel = new Panel(layout);
    resultButtonPanel = new Panel(layout);

    GridBagConstraints gbc = new GridBagConstraints();
    String instructions
            = "INSTRUCTIONS:"
            + "\n   1. Click on the System Tray Icon"
            + "\n   2. Click on any of the displayed Menu items"
            + "\n   3. Repeat step 1 and count the number of items in the "
            + "Menu"
            + "\n   4. The number of items in the Menu should increase by 1"
            + "\n   5. Repeating steps 1, 2 and 3 should not break 4th step"
            + "\n   6. Click Fail if the 4th step is broken, Otherwise "
            + "click Pass ";

    instructionTextArea = new TextArea();
    instructionTextArea.setText(instructions);
    instructionTextArea.setEnabled(false);
    instructionTextArea.setBackground(Color.white);

    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    mainControlPanel.add(instructionTextArea, gbc);

    passButton = new Button("Pass");
    passButton.setName("Pass");
    passButton.addActionListener(this);

    failButton = new Button("Fail");
    failButton.setName("Fail");
    failButton.addActionListener(this);

    gbc.gridx = 0;
    gbc.gridy = 0;
    resultButtonPanel.add(passButton, gbc);
    gbc.gridx = 1;
    gbc.gridy = 0;
    resultButtonPanel.add(failButton, gbc);
    gbc.gridx = 0;
    gbc.gridy = 1;
    mainControlPanel.add(resultButtonPanel, gbc);

    mainFrame.add(mainControlPanel);
    mainFrame.pack();
    mainFrame.setVisible(true);
}
 

private void createInstructionUI() {
    instructionFrame = new Frame("Native Print Dialog and Page Dialog");
    layout = new GridBagLayout();
    mainControlPanel = new Panel(layout);
    resultButtonPanel = new Panel(layout);

    GridBagConstraints gbc = new GridBagConstraints();
    String instructions
            = "\nINSTRUCTIONS:\n"
            + "\n   1. Click on the 'show a native print dialog' button. A "
            + "native print dialog will come up."
            + "\n   2. Click on the 'Cancel' button on Mac OS X or "
            + "'close'(X) on other paltforms. Dialog will be closed."
            + "\n   3. After the dialog is closed another window should "
            + "become the active window."
            + "\n   4. If there no any active window then the test has "
            + "failed. Click on 'Fail' Button."
            + "\n   5. Click on the 'show a native page dialog' button. A "
            + "native page dialog will come up."
            + "\n   6. Click on the 'Cancel' button on Mac OS X or "
            + "'close'(X) on other paltforms. Dialog will be closed."
            + "\n   7. After the dialog is closed another window should "
            + "become the active window."
            + "\n   8. If there no any active window then the test has "
            + "failed. Click on 'Fail' Button."
            + "\n   9. Test Passed. Click on 'Pass' Button.";

    instructionTextArea = new TextArea(13, 80);
    instructionTextArea.setText(instructions);
    instructionTextArea.setEnabled(false);
    instructionTextArea.setBackground(Color.white);

    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.weightx = 0.5;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    mainControlPanel.add(instructionTextArea, gbc);

    passButton = new Button("Pass");
    passButton.setName("Pass");
    passButton.addActionListener((ActionListener) this);

    failButton = new Button("Fail");
    failButton.setName("Fail");
    failButton.addActionListener((ActionListener) this);

    setButtonEnable(false);

    gbc.gridx = 0;
    gbc.gridy = 0;
    resultButtonPanel.add(passButton, gbc);
    gbc.gridx = 1;
    gbc.gridy = 0;
    resultButtonPanel.add(failButton, gbc);
    gbc.gridx = 0;
    gbc.gridy = 1;
    mainControlPanel.add(resultButtonPanel, gbc);

    instructionFrame.add(mainControlPanel);
    instructionFrame.pack();
    instructionFrame.setVisible(true);
}
 

private void createInstructionUI() {
    mainFrame = new Frame("Drag and drop link from web browser");
    layout = new GridBagLayout();
    mainControlPanel = new Panel(layout);
    resultButtonPanel = new Panel(layout);

    GridBagConstraints gbc = new GridBagConstraints();
    String instructions
            = "INSTRUCTIONS:"
            + "\n   1. Open any browser."
            + "\n   2. Select and drag URL from the browser page and "
            + "drop it on the panel"
            + "\n   3. If test fails, then a popup message will be displayed,"
            + " click Ok and \n       click Fail button."
            + "\n   5. Otherwise test passed. Click Pass button.";

    instructionTextArea = new TextArea();
    instructionTextArea.setText(instructions);
    instructionTextArea.setEnabled(false);
    instructionTextArea.setBackground(Color.white);

    gbc.gridx = 0;
    gbc.gridy = 0;
    gbc.fill = GridBagConstraints.HORIZONTAL;
    mainControlPanel.add(instructionTextArea, gbc);

    passButton = new Button("Pass");
    passButton.setName("Pass");
    passButton.addActionListener(this);

    failButton = new Button("Fail");
    failButton.setName("Fail");
    failButton.addActionListener(this);

    gbc.gridx = 0;
    gbc.gridy = 0;
    resultButtonPanel.add(passButton, gbc);
    gbc.gridx = 1;
    gbc.gridy = 0;
    resultButtonPanel.add(failButton, gbc);
    gbc.gridx = 0;
    gbc.gridy = 1;
    mainControlPanel.add(resultButtonPanel, gbc);

    mainFrame.add(mainControlPanel);
    mainFrame.pack();
    mainFrame.setVisible(true);
}