Java tutorial
/* * Copyright (c) All Rights Reserved. See details at the end of the file. */ package com.embedthis.ejs.ide.wizards; import org.eclipse.core.resources.IContainer; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.Path; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; 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.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.dialogs.ContainerSelectionDialog; import com.embedthis.ejs.ide.core.EJScriptTrace; public class EJScriptNewBCWizardPage extends WizardPage { private Text containerText; private Text fileText; private ISelection selection; public EJScriptNewBCWizardPage(ISelection selection) { super("BCWizardPage"); setTitle("Create a New Build Configuration File"); setDescription("This wizard creates a new build configuration file" + " that you can use to configure how your project is built."); this.selection = selection; } public void createControl(Composite parent) { Composite container = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); container.setLayout(layout); layout.numColumns = 3; layout.verticalSpacing = 9; Label label = new Label(container, SWT.NONE); label.setText("&Container:"); containerText = new Text(container, SWT.BORDER); GridData gd = new GridData(GridData.FILL_HORIZONTAL); containerText.setLayoutData(gd); containerText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { dialogChanged(); } }); Button button = new Button(container, SWT.PUSH); button.setText("Browse..."); button.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { handleBrowse(); } }); label = new Label(container, SWT.NULL); label.setText("&File name:"); fileText = new Text(container, SWT.BORDER); gd = new GridData(GridData.FILL_HORIZONTAL); fileText.setLayoutData(gd); fileText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { dialogChanged(); } }); EJScriptTrace.trace(EJScriptTrace.TRACE_VERBOSE, EJScriptTrace.WIZARD_TRACE, "checking selection"); if (selection == null) { EJScriptTrace.trace(EJScriptTrace.TRACE_VERBOSE, EJScriptTrace.WIZARD_TRACE, "selection is null - disabling"); containerText.setEnabled(false); button.setEnabled(false); } initialize(); dialogChanged(); setControl(container); } /** * Tests if the current workbench selection is a suitable container to use. */ private void initialize() { if (selection != null && selection.isEmpty() == false && selection instanceof IStructuredSelection) { IStructuredSelection ssel = (IStructuredSelection) selection; if (ssel.size() > 1) return; Object obj = ssel.getFirstElement(); if (obj instanceof IResource) { IContainer container; if (obj instanceof IContainer) container = (IContainer) obj; else container = ((IResource) obj).getParent(); containerText.setText(container.getFullPath().toString()); } } fileText.setText("myConfig.bc"); } /** * Uses the standard container selection dialog to choose the new value for * the container field. */ private void handleBrowse() { ContainerSelectionDialog dialog = new ContainerSelectionDialog(getShell(), ResourcesPlugin.getWorkspace().getRoot(), false, "Select new file container"); if (dialog.open() == ContainerSelectionDialog.OK) { Object[] result = dialog.getResult(); if (result.length == 1) { containerText.setText(((Path) result[0]).toString()); } } } /** * Ensures that both text fields are set. */ private void dialogChanged() { IResource container = ResourcesPlugin.getWorkspace().getRoot().findMember(new Path(getContainerName())); String fileName = getFileName(); if ((getContainerName().length() == 0) && (selection != null)) { updateStatus("File container must be specified"); return; } if ((selection != null) && (container.getType() & (IResource.PROJECT | IResource.FOLDER)) == 0) { updateStatus("File container must exist"); return; } if ((selection != null) && !container.isAccessible()) { updateStatus("Project must be writable"); return; } if (fileName.length() == 0) { updateStatus("File name must be specified"); return; } if (fileName.replace('\\', '/').indexOf('/', 1) > 0) { updateStatus("File name must be valid"); return; } int dotLoc = fileName.lastIndexOf('.'); if (dotLoc != -1) { String ext = fileName.substring(dotLoc + 1); if (ext.equalsIgnoreCase("bc") == false) { updateStatus("File extension must be \"bc\""); return; } } updateStatus(null); } private void updateStatus(String message) { setErrorMessage(message); setPageComplete(message == null); } public String getContainerName() { return containerText.getText(); } public String getFileName() { return fileText.getText(); } } /* * @copy default * * Copyright (c) Embedthis Software LLC, 2003-2012. All Rights Reserved. * Copyright (c) Michael O'Brien, 1993-2012. All Rights Reserved. * * This software is distributed under commercial and open source licenses. * You may use the GPL open source license described below or you may acquire * a commercial license from Embedthis Software. You agree to be fully bound * by the terms of either license. Consult the LICENSE.TXT distributed with * this software for full details. * * This software is open source; 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. See the GNU General Public License for more * details at: http://www.embedthis.com/downloads/gplLicense.html * * This program is distributed WITHOUT ANY WARRANTY; without even the * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * This GPL license does NOT permit incorporating this software into * proprietary programs. If you are unable to comply with the GPL, you must * acquire a commercial license to use this software. Commercial licenses * for this software and support services are available from Embedthis * Software at http://www.embedthis.com * * Local variables: * tab-width: 4 * c-basic-offset: 4 * End: * vim: sw=4 ts=4 * * Local variables: tab-width: 4 c-basic-offset: 4 End: vim: sw=4 ts=4 expandtab @end */