Java tutorial
/******************************************************************************* * Copyright (c) 2005-2008 Polarion Software. * 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: * Michael (msa) - Eclipse-SourceReferences support *******************************************************************************/ package org.eclipse.team.svn.ui; import java.net.URI; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ILabelProvider; import org.eclipse.jface.viewers.StyledCellLabelProvider; import org.eclipse.jface.viewers.StyledString; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.ViewerCell; import org.eclipse.jface.viewers.ViewerComparator; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Table; import org.eclipse.team.core.ScmUrlImportDescription; import org.eclipse.team.internal.ui.SWTUtils; import org.eclipse.team.svn.core.SVNTeamProjectSetCapability; import org.eclipse.team.ui.IScmUrlImportWizardPage; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.ide.IDE; /** * Wizard page that allows the user to import repositories with SCM URLs. */ public class SVNScmUrlImportWizardPage extends WizardPage implements IScmUrlImportWizardPage { private ScmUrlImportDescription[] descriptions; private Label counterLabel; private TableViewer bundlesViewer; private Button useHead; private static final String SVN_PAGE_USE_HEAD = "org.eclipse.team.svn.ui.import.page.head"; //$NON-NLS-1$ private class SvnLabelProvider extends StyledCellLabelProvider implements ILabelProvider { public Image getImage(Object element) { return PlatformUI.getWorkbench().getSharedImages().getImage(IDE.SharedImages.IMG_OBJ_PROJECT); } public String getText(Object element) { return this.getStyledText(element).getString(); } @Override public void update(ViewerCell cell) { StyledString string = getStyledText(cell.getElement()); cell.setText(string.getString()); cell.setStyleRanges(string.getStyleRanges()); cell.setImage(getImage(cell.getElement())); super.update(cell); } private StyledString getStyledText(Object element) { StyledString styledString = new StyledString(); if (element instanceof ScmUrlImportDescription) { ScmUrlImportDescription description = (ScmUrlImportDescription) element; String project = description.getProject(); URI scmUrl = description.getUri(); String version = getTag(scmUrl); String host = getServer(scmUrl); styledString.append(project); if (version != null) { styledString.append(' '); styledString.append(version, StyledString.DECORATIONS_STYLER); } styledString.append(' '); styledString.append('[', StyledString.DECORATIONS_STYLER); styledString.append(host, StyledString.DECORATIONS_STYLER); styledString.append(']', StyledString.DECORATIONS_STYLER); return styledString; } styledString.append(element.toString()); return styledString; } } public SVNScmUrlImportWizardPage() { super("svn", SVNUIMessages.SVNScmUrlImportWizardPage_Title, null); //$NON-NLS-1$ this.setDescription(SVNUIMessages.SVNScmUrlImportWizardPage_Description); } public void createControl(Composite parent) { Composite comp = SWTUtils.createHVFillComposite(parent, SWTUtils.MARGINS_NONE, 1); Composite group = SWTUtils.createHFillComposite(comp, SWTUtils.MARGINS_NONE, 1); Button versions = SWTUtils.createRadioButton(group, SVNUIMessages.SVNScmUrlImportWizardPage_ImportVersion); this.useHead = SWTUtils.createRadioButton(group, SVNUIMessages.SVNScmUrlImportWizardPage_ImportHEAD); SelectionListener listener = new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { SVNScmUrlImportWizardPage.this.bundlesViewer.refresh(true); } }; versions.addSelectionListener(listener); this.useHead.addSelectionListener(listener); Table table = new Table(comp, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL); GridData gd = new GridData(GridData.FILL_BOTH); gd.heightHint = 200; gd.widthHint = 225; table.setLayoutData(gd); this.bundlesViewer = new TableViewer(table); this.bundlesViewer.setLabelProvider(new SvnLabelProvider()); this.bundlesViewer.setContentProvider(new ArrayContentProvider()); this.bundlesViewer.setComparator(new ViewerComparator()); this.counterLabel = new Label(comp, SWT.NONE); this.counterLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); setControl(comp); setPageComplete(true); // Initialize versions versus HEAD // TODO: disabled because importing URLs with @<revision_nr> does not // seem to work // IDialogSettings settings = getWizard().getDialogSettings(); // boolean useHEAD = settings != null && // settings.getBoolean(SVN_PAGE_USE_HEAD); // useHead.setSelection(useHEAD); // versions.setSelection(!useHEAD); // force using HEAD => see disabled code above this.useHead.setSelection(true); versions.setEnabled(false); if (this.descriptions != null) { this.bundlesViewer.setInput(this.descriptions); updateCount(); } } public boolean finish() { boolean head = false; if (getControl() != null) { head = this.useHead.getSelection(); // store settings IDialogSettings settings = getWizard().getDialogSettings(); if (settings != null) { settings.put(SVNScmUrlImportWizardPage.SVN_PAGE_USE_HEAD, head); } } else { // use whatever was used last time IDialogSettings settings = getWizard().getDialogSettings(); if (settings != null) { head = settings.getBoolean(SVNScmUrlImportWizardPage.SVN_PAGE_USE_HEAD); } } if (head && this.descriptions != null) { // modify tags on bundle import descriptions for (int i = 0; i < this.descriptions.length; i++) { URI scmUri = this.descriptions[i].getUri(); this.descriptions[i].setUrl(removeTag(scmUri)); } } return true; } public ScmUrlImportDescription[] getSelection() { return this.descriptions; } public void setSelection(ScmUrlImportDescription[] descriptions) { this.descriptions = descriptions; // fill viewer if (this.bundlesViewer != null) { this.bundlesViewer.setInput(descriptions); updateCount(); } } /** * Updates the count of bundles that will be imported */ private void updateCount() { this.counterLabel.setText( NLS.bind(SVNUIMessages.SVNScmUrlImportWizardPage_Counter, new Integer(this.descriptions.length))); this.counterLabel.getParent().layout(); } private static String getTag(URI scmUri) { return SVNScmUrlImportWizardPage.splitTagPart(scmUri.toString())[1]; } /** * Remove tag attributes from the given URI reference. Results in the URI * pointing to HEAD. * * @param scmUri * a SCM URI reference to modify * @return Returns the content of the stripped URI as a string. */ private static String removeTag(URI scmUri) { return SVNScmUrlImportWizardPage.splitTagPart(scmUri.toString())[0]; } private static String getServer(URI scmUri) { // show the whole URL (without tag) return SVNScmUrlImportWizardPage.splitTagPart(SVNTeamProjectSetCapability.getSingleSchemeUrl(scmUri))[0]; } private static String[] splitTagPart(String url) { int i = url.lastIndexOf('/'); if (i < 0) { return new String[] { url, "" }; //$NON-NLS-1$ } String lastUrlPart = url.substring(i); int j = lastUrlPart.lastIndexOf('@'); return j < 0 ? new String[] { url, "" } : new String[] { url.substring(0, i) + lastUrlPart.substring(0, j), lastUrlPart.substring(j) }; } }