Java tutorial
/******************************************************************************* * Copyright (c) 2007 Spring IDE Developers * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Spring IDE Developers - initial API and implementation *******************************************************************************/ package org.springframework.ide.eclipse.webflow.ui.properties; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Set; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IProject; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.resource.JFaceColors; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.springframework.ide.eclipse.beans.core.BeansCorePlugin; import org.springframework.ide.eclipse.beans.core.model.IBeansProject; import org.springframework.ide.eclipse.beans.ui.navigator.BeansNavigatorSorter; import org.springframework.ide.eclipse.core.model.IModelElement; import org.springframework.ide.eclipse.webflow.core.Activator; import org.springframework.ide.eclipse.webflow.core.model.IWebflowConfig; import org.springframework.ide.eclipse.webflow.core.model.IWebflowProject; /** * @author Christian Dupuis * @since 2.0 */ public class WebflowConfigDialog extends Dialog { private static final int BEANS_CONFIG_LIST_VIEWER_HEIGHT = 150; private static final int LIST_VIEWER_WIDTH = 340; private CheckboxTableViewer beansConfigSetViewer; private Text nameText; private Button okButton; private Label errorLabel; private String title; private IProject project; private Set<IModelElement> beansConfig; private List<String> config; private IFile file; /** * * * @param project * @param beansConfig * @param parent */ public WebflowConfigDialog(Shell parent, IProject project, Set<IModelElement> beansConfig, List<String> config, IFile file) { super(parent); this.project = project; this.config = config; this.beansConfig = beansConfig; this.title = "Link to Spring configs"; String name = config.get(0); if (name == null) { int i = file.getName().lastIndexOf('.'); if (i > 0) { name = file.getName().substring(0, i); } config.add(0, name); } } /* * (non-Javadoc) * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell) */ protected void configureShell(Shell shell) { super.configureShell(shell); if (title != null) { shell.setText(title); } } /* * (non-Javadoc) * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite) */ protected Control createDialogArea(Composite parent) { // create composite Composite composite = (Composite) super.createDialogArea(parent); GridLayout layout = new GridLayout(); layout.marginHeight = 3; layout.marginWidth = 3; composite.setLayout(layout); composite.setLayoutData(new GridData(GridData.FILL_BOTH)); Label nameLabel = new Label(composite, SWT.NONE); nameLabel.setText("Specify a flow id"); nameText = new Text(composite, SWT.SINGLE | SWT.BORDER); if (this.config != null && this.config.size() > 0 && this.config.get(0) != null) { this.nameText.setText(this.config.get(0)); } nameText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); nameText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { validateName(); } }); Label beansLabel = new Label(composite, SWT.NONE); beansLabel.setText("Link Spring Bean Config and Config Sets"); // config set list viewer beansConfigSetViewer = CheckboxTableViewer.newCheckList(composite, SWT.BORDER); GridData gd = new GridData(GridData.FILL_BOTH); gd.widthHint = LIST_VIEWER_WIDTH; gd.heightHint = BEANS_CONFIG_LIST_VIEWER_HEIGHT; beansConfigSetViewer.getTable().setLayoutData(gd); beansConfigSetViewer.setContentProvider(new BeansConfigContentProvider(createBeansConfigList())); beansConfigSetViewer.setLabelProvider(new BeansConfigLabelProvider()); beansConfigSetViewer.setInput(this); // activate content provider if (this.beansConfig != null) { beansConfigSetViewer.setCheckedElements(this.beansConfig.toArray()); } beansConfigSetViewer.setSorter(new BeansNavigatorSorter()); // Create error label errorLabel = new Label(composite, SWT.NONE); errorLabel.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL)); errorLabel.setForeground(JFaceColors.getErrorText(parent.getDisplay())); errorLabel.setBackground(JFaceColors.getErrorBackground(parent.getDisplay())); applyDialogFont(composite); return composite; } /** * * * @param group * @param labelText * * @return */ protected Button createCheckBox(Composite group, String labelText) { GridLayout layout = new GridLayout(); layout.numColumns = 2; layout.marginWidth = 0; group.setLayout(layout); Button button = new Button(group, SWT.CHECK); Label label = new Label(group, SWT.NONE); label.setText(labelText); return button; } /* * (non-Javadoc) * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite) */ protected void createButtonsForButtonBar(Composite parent) { // create OK and Cancel buttons by default okButton = createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true); createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); // do this here because setting the text will set enablement on the // ok button okButton.setEnabled(true); } /* * (non-Javadoc) * @see org.eclipse.jface.dialogs.Dialog#buttonPressed(int) */ @SuppressWarnings("unchecked") protected void buttonPressed(int buttonId) { if (buttonId == IDialogConstants.OK_ID) { List configs = Arrays.asList(beansConfigSetViewer.getCheckedElements()); this.beansConfig.clear(); this.beansConfig.addAll(configs); this.config.add(0, nameText.getText()); } super.buttonPressed(buttonId); } /** * * * @return */ private Set<IModelElement> createBeansConfigList() { IBeansProject beansProject = BeansCorePlugin.getModel().getProject(project); // Create new list with config files from this config set Set<IModelElement> elements = new HashSet<IModelElement>(); elements.addAll(beansProject.getConfigs()); elements.addAll(beansProject.getConfigSets()); return elements; } private void validateName() { boolean isEnabled = true; String name = nameText.getText(); if (name == null || name.trim().length() == 0) { errorLabel.setText("Please specify a valid flow id"); isEnabled = false; } else { IWebflowProject wp = Activator.getModel().getProject(project); for (IWebflowConfig config : wp.getConfigs()) { if (name.equals(config.getName()) && !config.getResource().equals(file)) { errorLabel.setText("Flow id already in use in this project"); isEnabled = false; } } } okButton.setEnabled(isEnabled); errorLabel.getParent().update(); } public String getName() { return this.nameText.getText(); } }