| /******************************************************************************* |
| * <copyright> |
| * |
| * Copyright (c) 2013, 2013 SAP AG. |
| * 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: |
| * SAP AG - initial API, implementation and documentation |
| * |
| * </copyright> |
| * |
| *******************************************************************************/ |
| package org.eclipse.fmc.blockdiagram.editor.wizards; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.jface.dialogs.IDialogPage; |
| 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.Spinner; |
| import org.eclipse.swt.widgets.Text; |
| import org.eclipse.ui.dialogs.ContainerSelectionDialog; |
| |
| /** |
| * This is the page showing up when the new Blockdiagram Wizard has been started. |
| * It allows for the selection of diagram width and height, the filename (only |
| * blockdiagram is allowed as file extension) and the container project/folder can |
| * be selected. |
| * |
| * @author Benjamin Schmeling |
| * |
| */ |
| public class BlockDiagramFilePage extends WizardPage { |
| |
| public static final String DIAGRAM_EXTENSION = "blockdiag"; |
| |
| /** |
| * The control for specifying the container project/folder. |
| */ |
| private Text containerText; |
| |
| /** |
| * The control for specifying the name of the Blockdiagram file. |
| */ |
| private Text fileText; |
| |
| /** |
| * The selected container, which is required in order to fill the |
| * containerText. |
| */ |
| private ISelection selection; |
| |
| private Spinner gridUnit; |
| |
| /** |
| * The supported file extension |
| */ |
| private String extension; |
| |
| /** |
| * Getter for extension |
| * |
| * @return file extension |
| */ |
| public String getExtension() { |
| return this.extension; |
| } |
| |
| /** |
| * Constructor for BlockDiagramFilePage. |
| * |
| * @param selection |
| * The currently selected project container. |
| */ |
| public BlockDiagramFilePage(ISelection selection) { |
| super("BlockdiagramWizardPage"); |
| setTitle("New Blockdiagram File"); |
| this.extension = DIAGRAM_EXTENSION; |
| this.subInit(); |
| this.selection = selection; |
| } |
| |
| /** |
| * @see IDialogPage#createControl(Composite) |
| */ |
| @Override |
| public void createControl(Composite parent) { |
| Composite container = new Composite(parent, SWT.NULL); |
| GridLayout layout = new GridLayout(); |
| container.setLayout(layout); |
| layout.numColumns = 3; |
| layout.verticalSpacing = 9; |
| createContainerControl(container); |
| createFilenameControl(container); |
| createGridUnitControl(container); |
| // createDiagramSizeControl(container); |
| initialize(); |
| dialogChanged(); |
| setControl(container); |
| } |
| |
| protected void createGridUnitControl(Composite container) { |
| Label label = new Label(container, SWT.NULL); |
| label.setText("&GridUnit:"); |
| gridUnit = new Spinner(container, SWT.BORDER); |
| gridUnit.setSelection(10); |
| } |
| |
| /** |
| * Creates the filename input controls. |
| * |
| * @param container |
| * The parent composite container. |
| */ |
| private void createFilenameControl(Composite container) { |
| Label label; |
| GridData gd; |
| label = new Label(container, SWT.NULL); |
| label.setText("&File name:"); |
| |
| fileText = new Text(container, SWT.BORDER | SWT.SINGLE); |
| gd = new GridData(GridData.FILL_HORIZONTAL); |
| fileText.setLayoutData(gd); |
| fileText.addModifyListener(new ModifyListener() { |
| public void modifyText(ModifyEvent e) { |
| dialogChanged(); |
| } |
| }); |
| new Label(container, SWT.NULL); |
| } |
| |
| /** |
| * Creates the container selection controls. |
| * |
| * @param container |
| * The parent composite container. |
| */ |
| private void createContainerControl(Composite container) { |
| Label label = new Label(container, SWT.NULL); |
| label.setText("&Project:"); |
| |
| containerText = new Text(container, SWT.BORDER | SWT.SINGLE); |
| 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(); |
| } |
| }); |
| } |
| |
| /** |
| * 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()); |
| } |
| } else { |
| try { |
| IContainer container = FMCWizardUtils |
| .createProjectIfNecessary(); |
| if (container != null) |
| containerText.setText(container.getFullPath().toString()); |
| } catch (CoreException e) { |
| e.printStackTrace(); |
| } |
| |
| } |
| fileText.setText("new_file." + extension); |
| } |
| |
| /** |
| * 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) { |
| updateStatus("File container must be specified"); |
| return; |
| } |
| if (container == null |
| || (container.getType() & (IResource.PROJECT | IResource.FOLDER)) == 0) { |
| updateStatus("File container must exist"); |
| return; |
| } |
| if (!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(extension) == false) { |
| updateStatus("File extension must be \"" + extension + "\""); |
| return; |
| } |
| } |
| IContainer cont = (IContainer) container; |
| IFile f = cont.getFile(new Path(fileName)); |
| if (f.exists()) { |
| updateStatus("File already exists. Please choose another file name."); |
| return; |
| } |
| updateStatus(null); |
| } |
| |
| private void updateStatus(String message) { |
| setErrorMessage(message); |
| setPageComplete(message == null); |
| } |
| |
| /** |
| * |
| * @return The name of the selected container project/folder for this new |
| * Blockdiagram file. |
| */ |
| public String getContainerName() { |
| return containerText.getText(); |
| } |
| |
| /** |
| * |
| * @return The selected filename for this new Blockdiagram file including the file |
| * extension. |
| */ |
| public String getFileName() { |
| String file = fileText.getText(); |
| if (!file.endsWith(extension)) |
| file += "." + extension; |
| return file; |
| } |
| |
| public int getGridUnit() { |
| if (gridUnit == null) |
| return 5; |
| else |
| return gridUnit.getSelection(); |
| } |
| |
| private void subInit() { |
| setDescription("This wizard creates a new Blockdiagram Diagram file with *." |
| + extension |
| + " extension that can be opened by the Blockdiagram editor."); |
| if (fileText != null) { |
| String txt = fileText.getText(); |
| if (txt != null) { |
| int dotPos = txt.lastIndexOf('.'); |
| if (dotPos != -1) { |
| txt = txt.substring(0, dotPos + 1).concat(extension); |
| fileText.setText(txt); |
| } else { |
| fileText.setText(txt + "." + extension); |
| } |
| } else |
| fileText.setText("new_file." + extension); |
| } |
| } |
| } |