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: * Igor Burilo - Initial API and implementation *******************************************************************************/ package org.eclipse.team.svn.ui.lock; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ColumnPixelData; import org.eclipse.jface.viewers.ColumnWeightData; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TableLayout; import org.eclipse.jface.viewers.TableViewer; 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.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.Menu; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.swt.widgets.TableItem; import org.eclipse.team.svn.ui.SVNUIMessages; import org.eclipse.team.svn.ui.dialog.DefaultDialog; import org.eclipse.team.svn.ui.utility.ArrayStructuredContentProvider; /** * Lock resource selection composite * * Shows resources for lock operations: break lock, unlock, lock/steal lock * * @author Igor Burilo */ public class LockResourceSelectionComposite extends Composite { public final static int COLUMN_NAME = 1; public final static int COLUMN_PATH = 2; public final static int COLUMN_STATE = 3; public final static int COLUMN_OWNER = 4; public final static int COLUMN_DATE = 5; protected LockResource[] resources; protected boolean showCheckBoxesAndButtons; protected boolean hasBorder; protected CheckboxTableViewer tableViewer; protected Label lblSelectedResourcesNumber; protected ISelectionChangedListener selectionListener; protected List<ILockResourceSelectionChangeListener> selectionChangedListeners; protected LockResource[] selectedResources; protected LockResource[] notSelectedResources; public static interface ILockResourceSelectionChangeListener { public void resourcesSelectionChanged(LockResourceSelectionChangedEvent event); } public static class LockResourceSelectionChangedEvent { public final LockResource[] checkedResources; public final IStructuredSelection selection; public LockResourceSelectionChangedEvent(LockResource[] resources, ISelection selection) { this.checkedResources = resources; this.selection = (IStructuredSelection) selection; } } public LockResourceSelectionComposite(Composite parent, int style, boolean hasBorder, boolean showCheckBoxesAndButtons) { super(parent, style); this.showCheckBoxesAndButtons = showCheckBoxesAndButtons; this.hasBorder = hasBorder; this.resources = new LockResource[0]; this.selectedResources = new LockResource[0]; this.notSelectedResources = new LockResource[0]; this.selectionChangedListeners = new ArrayList<ILockResourceSelectionChangeListener>(); this.createControls(); } protected void createControls() { GridLayout gridLayout = null; GridData data = null; gridLayout = new GridLayout(); gridLayout.marginHeight = gridLayout.marginWidth = 0; this.setLayout(gridLayout); int style = SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.MULTI; if (this.hasBorder) { style |= SWT.BORDER; } Table table = new Table(this, this.showCheckBoxesAndButtons ? style | SWT.CHECK : style); table.setHeaderVisible(true); table.setLinesVisible(true); TableLayout layout = new TableLayout(); table.setLayout(layout); this.tableViewer = new CheckboxTableViewer(table); data = new GridData(GridData.FILL_BOTH); this.tableViewer.getTable().setLayoutData(data); LockResourcesTableComparator tableComparator = new LockResourcesTableComparator(this.tableViewer); if (this.showCheckBoxesAndButtons) { //0.checkbox TableColumn col = new TableColumn(table, SWT.NONE); col.setResizable(false); layout.addColumnData(new ColumnPixelData(20, false)); } else { //0.image TableColumn col = new TableColumn(table, SWT.NONE); col.setText(""); //$NON-NLS-1$ col.setResizable(false); col.setAlignment(SWT.CENTER); layout.addColumnData(new ColumnPixelData(20, false)); } //1.name TableColumn col = new TableColumn(table, SWT.NONE); col.setText(SVNUIMessages.LocksComposite_Name); col.addSelectionListener(tableComparator); layout.addColumnData(new ColumnWeightData(20, true)); //2.path col = new TableColumn(table, SWT.NONE); col.setText(SVNUIMessages.LocksComposite_Path); col.addSelectionListener(tableComparator); layout.addColumnData(new ColumnWeightData(30, true)); //3.state col = new TableColumn(table, SWT.NONE); col.setText(SVNUIMessages.LocksComposite_State); col.addSelectionListener(tableComparator); layout.addColumnData(new ColumnWeightData(20, true)); //4.owner col = new TableColumn(table, SWT.NONE); col.setText(SVNUIMessages.LocksComposite_Owner); col.addSelectionListener(tableComparator); layout.addColumnData(new ColumnWeightData(20, true)); //5.date col = new TableColumn(table, SWT.NONE); col.setText(SVNUIMessages.LocksComposite_CreationDate); col.addSelectionListener(tableComparator); layout.addColumnData(new ColumnWeightData(10, true)); tableComparator.setReversed(false); tableComparator.setColumnNumber(LockResourceSelectionComposite.COLUMN_PATH); this.tableViewer.setComparator(tableComparator); this.tableViewer.getTable() .setSortColumn(this.tableViewer.getTable().getColumn(LockResourceSelectionComposite.COLUMN_PATH)); this.tableViewer.getTable().setSortDirection(SWT.UP); this.tableViewer.setContentProvider(new ArrayStructuredContentProvider()); this.tableViewer.setLabelProvider(new LockResourcesTableLabelProvider(this.showCheckBoxesAndButtons)); this.tableViewer.addSelectionChangedListener(this.selectionListener = new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { if (LockResourceSelectionComposite.this.showCheckBoxesAndButtons) { LockResourceSelectionComposite.this.updateSelectedResources(); int selectedNumber = LockResourceSelectionComposite.this.selectedResources.length; LockResourceSelectionComposite.this.lblSelectedResourcesNumber .setText(LockResourceSelectionComposite.this.resourceNumberToString(selectedNumber)); } LockResourceSelectionComposite.this.fireResourcesSelectionChanged( new LockResourceSelectionChangedEvent(LockResourceSelectionComposite.this.selectedResources, event != null ? event.getSelection() : null)); } }); if (!this.showCheckBoxesAndButtons) { return; } Composite tComposite = new Composite(this, SWT.RIGHT); GridLayout gLayout = new GridLayout(); gLayout.numColumns = 3; gLayout.marginWidth = 0; tComposite.setLayout(gLayout); data = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL); tComposite.setLayoutData(data); Button selectButton = new Button(tComposite, SWT.PUSH); selectButton.setText(SVNUIMessages.Button_SelectAll); data = new GridData(); data.widthHint = DefaultDialog.computeButtonWidth(selectButton); selectButton.setLayoutData(data); SelectionListener listener = new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { LockResourceSelectionComposite.this.tableViewer.setAllChecked(true); Object[] elements = LockResourceSelectionComposite.this.tableViewer.getCheckedElements(); LockResourceSelectionComposite.this.selectionListener.selectionChanged(null); LockResourceSelectionComposite.this .fireResourcesSelectionChanged(new LockResourceSelectionChangedEvent( Arrays.asList(elements).toArray(new LockResource[elements.length]), null)); } }; selectButton.addSelectionListener(listener); Button deselectButton = new Button(tComposite, SWT.PUSH); deselectButton.setText(SVNUIMessages.Button_ClearSelection); data = new GridData(); data.widthHint = DefaultDialog.computeButtonWidth(deselectButton); deselectButton.setLayoutData(data); listener = new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { LockResourceSelectionComposite.this.tableViewer.setAllChecked(false); LockResourceSelectionComposite.this.selectionListener.selectionChanged(null); LockResourceSelectionComposite.this.fireResourcesSelectionChanged( new LockResourceSelectionChangedEvent(new LockResource[0], null)); } }; deselectButton.addSelectionListener(listener); Composite lComposite = new Composite(tComposite, SWT.NONE); GridLayout lLayout = new GridLayout(); lLayout.horizontalSpacing = 0; lLayout.marginWidth = 0; lComposite.setLayout(lLayout); data = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL); lComposite.setLayoutData(data); this.lblSelectedResourcesNumber = new Label(lComposite, SWT.RIGHT); this.lblSelectedResourcesNumber.setText(this.resourceNumberToString(this.selectedResources.length)); data = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL); this.lblSelectedResourcesNumber.setLayoutData(data); } protected String resourceNumberToString(int value) { return SVNUIMessages.format(SVNUIMessages.ResourceSelectionComposite_Info, new String[] { String.valueOf(value), String.valueOf(this.resources.length) }); } public void setInput(LockResource[] resources) { this.selectedResources = this.resources = resources; this.tableViewer.setInput(resources); if (this.resources != null) { for (int i = 0; i < this.resources.length; i++) { this.tableViewer.setChecked(this.resources[i], true); } if (this.showCheckBoxesAndButtons) { this.lblSelectedResourcesNumber.setText(this.resourceNumberToString(this.selectedResources.length)); } } //TODO select first row in View // if (!this.showCheckBoxesAndButtons) { // Table table = this.tableViewer.getTable(); // TableItem firstItem = table.getItem(0); // // //TODO it doesn't work when change selection outside, e.g. from Package Explorer // table.setSelection(firstItem); // ((Table)this.tableViewer.getControl()).showSelection(); // } if (this.showCheckBoxesAndButtons) { this.updateSelectedResources(); this.selectionListener.selectionChanged(null); } this.tableViewer.refresh(); } protected void updateSelectedResources() { TableItem[] items = this.tableViewer.getTable().getItems(); List<LockResource> checked = new ArrayList<LockResource>(items.length); List<LockResource> unchecked = new ArrayList<LockResource>(); for (int i = 0; i < items.length; i++) { (items[i].getChecked() ? checked : unchecked).add((LockResource) items[i].getData()); } this.selectedResources = checked.toArray(new LockResource[checked.size()]); this.notSelectedResources = unchecked.toArray(new LockResource[unchecked.size()]); } public TableViewer getTableViewer() { return this.tableViewer; } public LockResource[] getSelectedResources() { return this.selectedResources; } public LockResource[] getNotSelectedResources() { return this.notSelectedResources; } public void addResourcesSelectionChangedListener(ILockResourceSelectionChangeListener listener) { this.selectionChangedListeners.add(listener); } public void removeResourcesSelectionChangedListener(ILockResourceSelectionChangeListener listener) { this.selectionChangedListeners.remove(listener); } public void fireResourcesSelectionChanged(LockResourceSelectionChangedEvent event) { ILockResourceSelectionChangeListener[] listeners = (ILockResourceSelectionChangeListener[]) this.selectionChangedListeners .toArray(new ILockResourceSelectionChangeListener[this.selectionChangedListeners.size()]); for (int i = 0; i < listeners.length; i++) { listeners[i].resourcesSelectionChanged(event); } } public void setMenuManager(MenuManager menuMgr) { Menu menu = menuMgr.createContextMenu(this.tableViewer.getTable()); this.tableViewer.getTable().setMenu(menu); } }