Java tutorial
/******************************************************************************* * Copyright (c) 2006 Subclipse project 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: * Subclipse project committers - initial API and implementation ******************************************************************************/ package org.tigris.subversion.subclipse.ui.subscriber; import org.eclipse.core.resources.IResource; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.util.IPropertyChangeListener; import org.eclipse.jface.util.PropertyChangeEvent; 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.graphics.Point; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.layout.RowLayout; 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.eclipse.team.internal.core.subscribers.ActiveChangeSet; import org.eclipse.ui.PlatformUI; import org.tigris.subversion.subclipse.ui.IHelpContextIds; import org.tigris.subversion.subclipse.ui.Policy; import org.tigris.subversion.subclipse.ui.comments.CommitCommentArea; import org.tigris.subversion.subclipse.ui.dialogs.SubclipseTrayDialog; /** * Dialog for creating and editing commit set * title and comment */ public class CommitSetDialog extends SubclipseTrayDialog { private static final int DEFAULT_WIDTH_IN_CHARS = 80; private final ActiveChangeSet set; private CommitCommentArea commitCommentArea; private Text nameText; private Button useTitleButton; private Button enterCommentButton; private final String title; private final String description; private String comment; public CommitSetDialog(Shell parentShell, ActiveChangeSet set, IResource[] files, String title, String description) { this(parentShell, set, files, title, description, false); } public CommitSetDialog(Shell parentShell, ActiveChangeSet set, IResource[] files, String title, String description, boolean modeLess) { super(parentShell); if (modeLess) { setShellStyle(SWT.CLOSE | SWT.MODELESS | SWT.BORDER | SWT.TITLE); setBlockOnOpen(false); } this.set = set; this.title = title; this.description = description; if (files == null) { files = set.getResources(); } int shellStyle = getShellStyle(); setShellStyle(shellStyle | SWT.RESIZE | SWT.MAX); commitCommentArea = new CommitCommentArea(this, this.getDialogBoundsSettings()); } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite) */ protected Control createDialogArea(Composite parent) { getShell().setText(title); Composite composite = (Composite) super.createDialogArea(parent); composite.setLayout(new GridLayout()); composite.setLayoutData(new GridData(GridData.FILL_BOTH)); createWrappingLabel(composite, description); createNameArea(composite); 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); createOptionsArea(composite); } 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(); updateEnablements(); } } }); initializeValues(); updateEnablements(); // set F1 help PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.COMMIT_SET_DIALOG); 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 = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN); 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(Policy.bind("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) { updateEnablements(); } }); } private void initializeValues() { String initialText = set.getTitle(); if (initialText == null) initialText = ""; //$NON-NLS-1$ nameText.setText(initialText); if (useTitleButton != null) { useTitleButton.setSelection(!set.hasComment()); enterCommentButton.setSelection(set.hasComment()); } } 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); useTitleButton = createRadioButton(radioArea, Policy.bind("CommitSetDialog_2")); enterCommentButton = createRadioButton(radioArea, Policy.bind("CommitSetDialog_3")); SelectionAdapter listener = new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { updateEnablements(); } }; useTitleButton.addSelectionListener(listener); enterCommentButton.addSelectionListener(listener); } private Button createRadioButton(Composite parent, String label) { Button button = new Button(parent, SWT.RADIO); button.setText(label); return button; } private void updateEnablements() { commitCommentArea.setEnabled(isUseCustomComment()); String name = nameText.getText(); if (name.length() == 0) { setPageComplete(false); return; } if (isUseCustomComment()) { if (comment == null || comment.length() == 0) { setPageComplete(false); 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() { set.setTitle(nameText.getText()); if (isUseCustomComment()) { // Call getComment so the comment gets saved set.setComment(commitCommentArea.getComment(true)); } else { set.setComment(null); } super.okPressed(); } private boolean isUseCustomComment() { return enterCommentButton == null || enterCommentButton.getSelection(); } 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; } }