Java tutorial
/* * Freeplane - mind map editor * Copyright (C) 2003 -2013 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitry Polivaev * * 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, see <http://www.gnu.org/licenses/>. */ package org.freeplane.core.resources.components; import java.awt.BorderLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.IOException; import java.text.MessageFormat; import java.util.ArrayList; import java.util.Enumeration; import java.util.HashMap; import java.util.Iterator; import java.util.Properties; import java.util.Vector; import javax.swing.JButton; import javax.swing.JDialog; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTabbedPane; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; import javax.swing.tree.DefaultMutableTreeNode; import org.apache.commons.lang.StringUtils; import org.freeplane.core.resources.ResourceController; import org.freeplane.core.resources.components.IValidator.ValidationResult; import org.freeplane.core.ui.MenuBuilder; import org.freeplane.core.ui.components.UITools; import org.freeplane.core.util.LogUtils; import org.freeplane.core.util.TextUtils; import org.freeplane.features.mode.Controller; import com.jgoodies.forms.builder.DefaultFormBuilder; import com.jgoodies.forms.factories.ButtonBarFactory; import com.jgoodies.forms.layout.FormLayout; public class OptionPanel { public interface IOptionPanelFeedback { void writeProperties(Properties props); } final static private String OPTION_PANEL_RESOURCE_PREFIX = "OptionPanel."; static final String PREFERENCE_STORAGE_PROPERTY = "OptionPanel_Window_Properties"; private Vector<IPropertyControl> controls; final private IOptionPanelFeedback feedback; final private HashMap<String, Integer> tabStringToIndexMap = new HashMap<String, Integer>(); final private HashMap<Integer, String> tabIndexToStringMap = new HashMap<Integer, String>(); private String selectedPanel; final private JDialog topDialog; /** * @throws IOException */ public OptionPanel(final JDialog d, final IOptionPanelFeedback feedback) { super(); topDialog = d; this.feedback = feedback; new OptionPanelBuilder(); } /** * This method builds the preferences panel. * A list of IPropertyControl is iterated through and * if the IPropertyControl is an instance of TabProperty, * it creates a new "tab" that can be clicked to reveal the appropriate panel. * If the previous selected tab was saved on close, * the appropriate tab is reopened. * * @param controlsTree This is the data that needs to be built */ public void buildPanel(final DefaultMutableTreeNode controlsTree) { final JPanel centralPanel = new JPanel(); centralPanel.setLayout(new GridLayout(1, 1)); final JTabbedPane tabbedPane = new JTabbedPane(); tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT); FormLayout bottomLayout = null; DefaultFormBuilder bottomBuilder = null; initControls(controlsTree); final Iterator<IPropertyControl> iterator = controls.iterator(); int tabIndex = 0; while (iterator.hasNext()) { final IPropertyControl control = iterator.next(); if (control instanceof TabProperty) { final TabProperty newTab = (TabProperty) control; bottomLayout = new FormLayout(newTab.getName(), ""); bottomBuilder = new DefaultFormBuilder(bottomLayout); bottomBuilder.setDefaultDialogBorder(); final JScrollPane bottomComponent = new JScrollPane(bottomBuilder.getPanel()); UITools.setScrollbarIncrement(bottomComponent); final String tabName = TextUtils.getOptionalText(newTab.getLabel()); tabStringToIndexMap.put(tabName, tabIndex); tabIndexToStringMap.put(tabIndex, tabName); tabbedPane.addTab(tabName, bottomComponent); tabIndex++; } else { control.layout(bottomBuilder); } } tabbedPane.addChangeListener(new ChangeListener() { public void stateChanged(final ChangeEvent event) { final JTabbedPane c = (JTabbedPane) event.getSource(); selectedPanel = tabIndexToStringMap.get(c.getSelectedIndex()); } }); centralPanel.add(tabbedPane); if (selectedPanel != null && tabStringToIndexMap.containsKey(selectedPanel)) { // Without the containsKey call the loading of the tab "behaviour"/"behavior" gives a nullpointer exception tabbedPane.setSelectedIndex(tabStringToIndexMap.get(selectedPanel)); } topDialog.getContentPane().add(centralPanel, BorderLayout.CENTER); final JButton cancelButton = new JButton(); MenuBuilder.setLabelAndMnemonic(cancelButton, TextUtils.getRawText("cancel")); cancelButton.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent arg0) { closeWindow(); } }); final JButton okButton = new JButton(); MenuBuilder.setLabelAndMnemonic(okButton, TextUtils.getRawText("ok")); okButton.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent arg0) { if (validate()) { closeWindow(); feedback.writeProperties(getOptionProperties()); } } }); topDialog.getRootPane().setDefaultButton(okButton); topDialog.getContentPane().add(ButtonBarFactory.buildOKCancelBar(cancelButton, okButton), BorderLayout.SOUTH); } private boolean validate() { final Properties properties = getOptionProperties(); final ValidationResult result = new ValidationResult(); for (final IValidator validator : Controller.getCurrentController().getOptionValidators()) { result.add(validator.validate(properties)); } if (!result.isValid()) { UITools.errorMessage(formatErrors("OptionPanel.validation_error", result.getErrors())); LogUtils.severe(result.toString()); } else if (result.hasWarnings()) { UITools.informationMessage(formatErrors("OptionPanel.validation_warning", result.getWarnings())); LogUtils.warn(result.toString()); } return result.isValid(); } private String formatErrors(final String key, final ArrayList<String> errors) { // TextUtils.format() xml escapes the format arguments - we don't want that final MessageFormat formatter = new MessageFormat(TextUtils.getText(key)); return formatter.format(new Object[] { StringUtils.join(errors.iterator(), "<br>") }); } @SuppressWarnings("unchecked") /** * This is where the controls are added to the "controls" IProperty Vector * @param controlsTree This is the tree that gets built */ private void initControls(final DefaultMutableTreeNode controlsTree) { controls = new Vector<IPropertyControl>(); for (final Enumeration<DefaultMutableTreeNode> i = controlsTree.preorderEnumeration(); i .hasMoreElements();) { final IPropertyControlCreator creator = (IPropertyControlCreator) i.nextElement().getUserObject(); if (creator == null) { continue; } final IPropertyControl control = creator.createControl(); controls.add(control); } } public void closeWindow() { final OptionPanelWindowConfigurationStorage storage = new OptionPanelWindowConfigurationStorage(); storage.setPanel(OPTION_PANEL_RESOURCE_PREFIX + selectedPanel); storage.storeDialogPositions(topDialog, OptionPanel.PREFERENCE_STORAGE_PROPERTY); topDialog.setVisible(false); topDialog.dispose(); } private Properties getOptionProperties() { final Properties p = new Properties(); for (final IPropertyControl control : controls) { if (control instanceof PropertyBean) { final PropertyBean bean = (PropertyBean) control; final String value = bean.getValue(); if (value != null) { p.setProperty(bean.getName(), value); } } } return p; } public void setProperties() { for (final IPropertyControl control : controls) { if (control instanceof PropertyBean) { final PropertyBean bean = (PropertyBean) control; final String name = bean.getName(); final String value = ResourceController.getResourceController().getProperty(name); bean.setValue(value); } } } void setSelectedPanel(final String panel) { if (panel.startsWith(OPTION_PANEL_RESOURCE_PREFIX)) { selectedPanel = panel.substring(OPTION_PANEL_RESOURCE_PREFIX.length()); } } }