Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2007 IBM Corporation and others. * 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: * IBM Corporation - initial API and implementation * Brock Janiczak (brockj@tpg.com.au) - Bug 77944 [Change Sets] Comment dialog: Use comment as title *******************************************************************************/ package org.eclipse.team.internal.ccvs.ui.subscriber; import org.eclipse.core.resources.IResource; import org.eclipse.jface.dialogs.*; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.util.IPropertyChangeListener; import org.eclipse.jface.util.PropertyChangeEvent; import org.eclipse.swt.SWT; import org.eclipse.swt.events.*; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.*; import org.eclipse.swt.widgets.*; import org.eclipse.team.internal.ccvs.ui.*; import org.eclipse.team.internal.core.subscribers.ActiveChangeSet; import org.eclipse.ui.PlatformUI; /** * Dialog for creating and editing commit set * title and comment */ public class CommitSetDialog extends TitleAreaDialog { public final static short NEW = 0; public final static short EDIT = 1; private static final int DEFAULT_WIDTH_IN_CHARS = 80; private final ActiveChangeSet set; private CommitCommentArea commitCommentArea; private Text nameText; private Button customTitleButton; private final String title; private final String description; private String comment; private short mode; protected String customTitle; public CommitSetDialog(Shell parentShell, ActiveChangeSet set, IResource[] files, short mode) { super(parentShell); this.set = set; this.mode = mode; this.title = mode == NEW ? CVSUIMessages.WorkspaceChangeSetCapability_2 : CVSUIMessages.WorkspaceChangeSetCapability_7; this.description = mode == NEW ? CVSUIMessages.WorkspaceChangeSetCapability_3 : CVSUIMessages.WorkspaceChangeSetCapability_8; if (files == null) { files = set.getResources(); } int shellStyle = getShellStyle(); setShellStyle(shellStyle | SWT.RESIZE | SWT.MAX); commitCommentArea = new CommitCommentArea(); // Get a project from which the commit template can be obtained if (files.length > 0) commitCommentArea.setProject(files[0].getProject()); } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.TitleAreaDialog#createContents(org.eclipse.swt.widgets.Composite) */ protected Control createContents(Composite parent) { Control contents = super.createContents(parent); setTitle(title); setMessage(description); return contents; } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite) */ protected Control createDialogArea(Composite parent) { Composite parentComposite = (Composite) super.createDialogArea(parent); // create a composite with standard margins and spacing Composite composite = new Composite(parentComposite, SWT.NONE); GridLayout layout = new GridLayout(); layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN); layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN); layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING); layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING); composite.setLayout(layout); composite.setLayoutData(new GridData(GridData.FILL_BOTH)); composite.setFont(parentComposite.getFont()); if (hasCommitTemplate()) { if (set.hasComment()) { // Only set the comment if the set has a custom comment. // Otherwise, the template should be used comment = set.getComment(); commitCommentArea.setProposedComment(comment); } } else { comment = set.getComment(); commitCommentArea.setProposedComment(comment); } commitCommentArea.createArea(composite); commitCommentArea.addPropertyChangeListener(new IPropertyChangeListener() { public void propertyChange(PropertyChangeEvent event) { if (event.getProperty() == CommitCommentArea.OK_REQUESTED) { okPressed(); } else if (event.getProperty() == CommitCommentArea.COMMENT_MODIFIED) { comment = (String) event.getNewValue(); if (!customTitleButton.getSelection()) { nameText.setText(commitCommentArea.getFirstLineOfComment()); } updateEnablements(); } } }); createOptionsArea(composite); createNameArea(composite); initializeValues(); updateEnablements(); Dialog.applyDialogFont(parent); return composite; } /* (non-Javadoc) * @see org.eclipse.jface.window.Window#getInitialSize() */ protected Point getInitialSize() { final Point size = super.getInitialSize(); size.x = convertWidthInCharsToPixels(DEFAULT_WIDTH_IN_CHARS); size.y += convertHeightInCharsToPixels(8); return size; } private void createNameArea(Composite parent) { Composite composite = new Composite(parent, SWT.NONE); GridLayout layout = new GridLayout(); layout.marginHeight = 0; layout.marginWidth = 0; layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING); layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING); layout.numColumns = 2; composite.setLayout(layout); composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); composite.setFont(parent.getFont()); Label label = new Label(composite, SWT.NONE); label.setText(CVSUIMessages.CommitSetDialog_0); label.setLayoutData(new GridData(GridData.BEGINNING)); nameText = new Text(composite, SWT.BORDER); nameText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); nameText.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { customTitle = nameText.getText(); updateEnablements(); } }); } private void initializeValues() { String initialText = set.getTitle(); if (initialText == null) initialText = ""; //$NON-NLS-1$ nameText.setText(initialText); nameText.setSelection(0, initialText.length()); if (customTitleButton != null) { customTitleButton.setSelection(!commitCommentArea.getFirstLineOfComment().equals(initialText)); } } private void createOptionsArea(Composite composite) { Composite radioArea = new Composite(composite, SWT.NONE); RowLayout radioAreaLayout = new RowLayout(SWT.VERTICAL); radioAreaLayout.marginLeft = 0; radioAreaLayout.marginRight = 0; radioAreaLayout.marginTop = 0; radioAreaLayout.marginBottom = 0; radioArea.setLayout(radioAreaLayout); customTitleButton = createCheckButton(radioArea, CVSUIMessages.CommitSetDialog_2); SelectionAdapter listener = new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { if (customTitleButton.getSelection()) { nameText.setText(customTitle); } else { nameText.setText(commitCommentArea.getFirstLineOfComment()); } updateEnablements(); } }; customTitleButton.addSelectionListener(listener); } private Button createCheckButton(Composite parent, String label) { Button button = new Button(parent, SWT.CHECK); button.setText(label); return button; } private void updateEnablements() { setErrorMessage(null); String name; nameText.setEnabled(customTitleButton.getSelection()); if (customTitleButton.getSelection()) { name = customTitle; } else { name = commitCommentArea.getFirstLineOfComment(); } if (name.length() == 0) { setPageComplete(false); return; } // check if the new change set already exists if (mode == NEW && CVSUIPlugin.getPlugin().getChangeSetManager().getSet(name) != null) { setPageComplete(false); setErrorMessage(CVSUIMessages.WorkspaceChangeSetCapability_9); return; } // check if the edited change set already exists, do not display the // error message when new the name is the same as the old one if (mode == EDIT && !name.equals(set.getName()) && CVSUIPlugin.getPlugin().getChangeSetManager().getSet(name) != null) { setPageComplete(false); setErrorMessage(CVSUIMessages.WorkspaceChangeSetCapability_9); return; } setPageComplete(true); } final protected void setPageComplete(boolean complete) { Button okButton = getButton(IDialogConstants.OK_ID); if (okButton != null) { okButton.setEnabled(complete); } } private boolean hasCommitTemplate() { return commitCommentArea.hasCommitTemplate(); } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.Dialog#okPressed() */ protected void okPressed() { String title = null; if (customTitleButton.getSelection()) { title = customTitle; } else { title = commitCommentArea.getFirstLineOfComment(); } set.setTitle(title); // Call getComment so the comment gets saved set.setComment(commitCommentArea.getComment(true)); super.okPressed(); } protected Label createWrappingLabel(Composite parent, String text) { Label label = new Label(parent, SWT.LEFT | SWT.WRAP); label.setText(text); GridData data = new GridData(); data.horizontalSpan = 1; data.horizontalAlignment = GridData.FILL; data.horizontalIndent = 0; data.grabExcessHorizontalSpace = true; data.widthHint = 200; label.setLayoutData(data); return label; } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.Dialog#createButtonBar(org.eclipse.swt.widgets.Composite) */ protected Control createButtonBar(Composite parent) { Control control = super.createButtonBar(parent); updateEnablements(); return control; } /* (non-Javadoc) * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell) */ protected void configureShell(Shell shell) { super.configureShell(shell); shell.setText(title); // set F1 help PlatformUI.getWorkbench().getHelpSystem().setHelp(shell, IHelpContextIds.COMMIT_SET_DIALOG); } }