Java tutorial
/* * CapturePlugin by Andreas Hessel (Vidrec@gmx.de), Bodo Tasche * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * CVS information: * $RCSfile$ * $Source$ * $Date: 2010-01-29 20:02:35 +0100 (Fri, 29 Jan 2010) $ * $Author: bananeweizen $ * $Revision: 6423 $ */ package captureplugin.drivers; import java.awt.Component; import java.awt.Font; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import java.awt.Window; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import javax.swing.DefaultListCellRenderer; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JDialog; import javax.swing.JEditorPane; import javax.swing.JLabel; import javax.swing.JList; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextField; import javax.swing.ScrollPaneConstants; import javax.swing.event.DocumentEvent; import javax.swing.event.DocumentListener; import org.apache.commons.lang.StringUtils; import util.ui.Localizer; import util.ui.UiUtilities; import util.ui.WindowClosingIf; import com.jgoodies.forms.builder.ButtonBarBuilder2; /** * A Dialog for creating new Devices */ public class DeviceCreatorDialog extends JDialog implements WindowClosingIf { /** Translator */ private static final Localizer mLocalizer = Localizer.getLocalizerFor(DeviceCreatorDialog.class); /** Available Drivers */ private JComboBox mDriverCombo; /** Description of Driver */ private JEditorPane mDesc; /** Name of Device */ private JTextField mName; /** Which button was pressed ? */ private int mRetmode = JOptionPane.CANCEL_OPTION; /** * Creates the Dialog * * @param parent * Parent-Frame */ public DeviceCreatorDialog(Window parent) { super(parent); setModal(true); createGUI(); setTitle(mLocalizer.msg("Title", "Create Device")); } /** * Create the GUI */ private void createGUI() { UiUtilities.registerForClosing(this); DriverIf[] drivers = DriverFactory.getInstance().getDrivers(); mDriverCombo = new JComboBox(drivers); mDriverCombo.setRenderer(new DefaultListCellRenderer() { public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) { if (value instanceof DriverIf) { value = ((DriverIf) value).getDriverName(); } return super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus); } }); JPanel panel = (JPanel) getContentPane(); panel.setLayout(new GridBagLayout()); GridBagConstraints label = new GridBagConstraints(); label.insets = new Insets(5, 5, 5, 5); label.anchor = GridBagConstraints.NORTHWEST; GridBagConstraints input = new GridBagConstraints(); input.fill = GridBagConstraints.HORIZONTAL; input.weightx = 1.0; input.gridwidth = GridBagConstraints.REMAINDER; input.insets = new Insets(5, 5, 5, 5); panel.add(new JLabel(mLocalizer.msg("Name", "Name")), label); mName = new JTextField(); panel.add(mName, input); panel.add(new JLabel(mLocalizer.msg("Driver", "Driver")), label); panel.add(mDriverCombo, input); mDesc = UiUtilities.createHtmlHelpTextArea(""); mDesc.setEditable(false); panel.add(new JLabel(mLocalizer.msg("Description", "Description")), input); GridBagConstraints descC = new GridBagConstraints(); descC.weightx = 1.0; descC.weighty = 1.0; descC.fill = GridBagConstraints.BOTH; descC.gridwidth = GridBagConstraints.REMAINDER; descC.insets = new Insets(5, 5, 5, 5); panel.add(new JScrollPane(mDesc, ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER), descC); final Font font = new JLabel().getFont(); String desc = ((DriverIf) mDriverCombo.getSelectedItem()).getDriverDesc(); desc = "<html><div style=\"color:#000000;font-family:" + font.getName() + "; font-size:" + font.getSize() + ";\">" + desc + "</div></html>"; mDesc.setText(desc); mDesc.setFont(font); mDriverCombo.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { String description = ((DriverIf) mDriverCombo.getSelectedItem()).getDriverDesc(); description = "<html><div style=\"color:#000000;font-family:" + font.getName() + "; font-size:" + font.getSize() + ";\">" + description + "</div></html>"; mDesc.setText(description); mDesc.setFont(font); } }); final JButton ok = new JButton(Localizer.getLocalization(Localizer.I18N_OK)); ok.setEnabled(false); final JButton cancel = new JButton(Localizer.getLocalization(Localizer.I18N_CANCEL)); ok.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { okPressed(); } }); cancel.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { setVisible(false); } }); mName.getDocument().addDocumentListener(new DocumentListener() { @Override public void removeUpdate(DocumentEvent e) { updateButtons(); } @Override public void insertUpdate(DocumentEvent e) { updateButtons(); } @Override public void changedUpdate(DocumentEvent e) { updateButtons(); } private void updateButtons() { ok.setEnabled(!mName.getText().trim().isEmpty()); } }); ButtonBarBuilder2 builder = new ButtonBarBuilder2(); builder.addGlue(); builder.addButton(new JButton[] { ok, cancel }); getRootPane().setDefaultButton(ok); input.insets = new Insets(5, 5, 5, 5); panel.add(builder.getPanel(), input); setSize(400, 300); } /** * OK was pressed */ private void okPressed() { if (StringUtils.isBlank(mName.getText())) { JOptionPane.showMessageDialog(this, mLocalizer.msg("NoName", "No Name was entered"), Localizer.getLocalization(Localizer.I18N_ERROR), JOptionPane.ERROR_MESSAGE); } else { mRetmode = JOptionPane.OK_OPTION; setVisible(false); } } /** * Create the Device * * @return Device */ public DeviceIf createDevice() { if (mRetmode != JOptionPane.OK_OPTION) { return null; } return ((DriverIf) mDriverCombo.getSelectedItem()).createDevice(mName.getText().trim()); } /** * Which Button was pressed ? JOptionPane.OK_OPTION / CANCEL_OPTION * * @return Button that was pressed (JOptionPane.OK_OPTION / CANCEL_OPTION) */ public int getReturnValue() { return mRetmode; } public void close() { setVisible(false); } }