Java tutorial
/******************************************************************************* * Copyright (c) 2007, 2008 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 *******************************************************************************/ package org.jboss.tools.project.examples.dialog.xpl; import java.lang.reflect.InvocationTargetException; import java.util.Collection; import java.util.Map; import org.eclipse.core.resources.IMarker; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.operation.IRunnableWithProgress; import org.eclipse.jface.viewers.CheckStateChangedEvent; import org.eclipse.jface.viewers.CheckboxTableViewer; import org.eclipse.jface.viewers.ColumnWeightData; import org.eclipse.jface.viewers.ICheckStateListener; import org.eclipse.jface.viewers.ILabelProviderListener; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.ITableLabelProvider; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.ListViewer; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableLayout; import org.eclipse.jface.viewers.Viewer; 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.graphics.Image; import org.eclipse.swt.layout.FormAttachment; import org.eclipse.swt.layout.FormData; import org.eclipse.swt.layout.FormLayout; 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.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.ui.IMarkerResolution; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.internal.IWorkbenchHelpContextIds; import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin; import org.eclipse.ui.internal.views.markers.ExtendedMarkersView; import org.eclipse.ui.statushandlers.StatusAdapter; import org.eclipse.ui.statushandlers.StatusManager; import org.eclipse.ui.views.markers.WorkbenchMarkerResolution; import org.eclipse.ui.views.markers.internal.MarkerMessages; import org.eclipse.ui.views.markers.internal.Util; /** * QuickFixPage is a page for the quick fixes of a marker. * * @since 3.4 * */ public class QuickFixPage extends WizardPage { static final IMarker[] EMPTY_MARKER_ARRAY = new IMarker[0]; private Map resolutions; private ListViewer resolutionsList; private CheckboxTableViewer markersTable; //private IWorkbenchPartSite site; /** * Create a new instance of the receiver. * * @param problemDescription * the description of the problem being fixed * @param resolutions * {@link Map} with key of {@link IMarkerResolution} and value of * {@link Collection} of {@link IMarker} * @param site * The IWorkbenchPartSite to show markers */ public QuickFixPage(String problemDescription, Map resolutions) { super(problemDescription); this.resolutions = resolutions; //this.site = site; setTitle(MarkerMessages.resolveMarkerAction_dialogTitle); setMessage(problemDescription); } public void createControl(Composite parent) { initializeDialogUnits(parent); // Create a new composite as there is the title bar seperator // to deal with Composite control = new Composite(parent, SWT.NONE); control.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); setControl(control); PlatformUI.getWorkbench().getHelpSystem().setHelp(control, IWorkbenchHelpContextIds.PROBLEMS_VIEW); FormLayout layout = new FormLayout(); layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN); layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN); layout.spacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING); control.setLayout(layout); Label resolutionsLabel = new Label(control, SWT.NONE); resolutionsLabel.setText(MarkerMessages.MarkerResolutionDialog_Resolutions_List_Title); resolutionsLabel.setLayoutData(new FormData()); createResolutionsList(control); FormData listData = new FormData(); listData.top = new FormAttachment(resolutionsLabel, 0); listData.left = new FormAttachment(0); listData.right = new FormAttachment(100, 0); listData.height = convertHeightInCharsToPixels(10); resolutionsList.getControl().setLayoutData(listData); Label title = new Label(control, SWT.NONE); title.setText(MarkerMessages.MarkerResolutionDialog_Problems_List_Title); FormData labelData = new FormData(); labelData.top = new FormAttachment(resolutionsList.getControl(), 0); labelData.left = new FormAttachment(0); title.setLayoutData(labelData); createMarkerTable(control); Composite buttons = createTableButtons(control); FormData buttonData = new FormData(); buttonData.top = new FormAttachment(title, 0); buttonData.right = new FormAttachment(100); buttonData.height = convertHeightInCharsToPixels(10); buttons.setLayoutData(buttonData); FormData tableData = new FormData(); tableData.top = new FormAttachment(buttons, 0, SWT.TOP); tableData.left = new FormAttachment(0); tableData.bottom = new FormAttachment(100); tableData.right = new FormAttachment(buttons, 0); tableData.height = convertHeightInCharsToPixels(10); markersTable.getControl().setLayoutData(tableData); Dialog.applyDialogFont(control); if (resolutionsList.getList().getItemCount() > 0) { resolutionsList.setSelection(new StructuredSelection(resolutionsList.getElementAt(0))); } markersTable.setAllChecked(true); } /** * Create the table buttons for the receiver. * * @param control * @return {@link Composite} */ private Composite createTableButtons(Composite control) { Composite buttonComposite = new Composite(control, SWT.NONE); GridLayout layout = new GridLayout(); layout.marginWidth = 0; layout.marginHeight = 0; layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING); layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING); buttonComposite.setLayout(layout); Button selectAll = new Button(buttonComposite, SWT.PUSH); selectAll.setText(MarkerMessages.selectAllAction_title); selectAll.setLayoutData(new GridData(SWT.FILL, SWT.NONE, false, false)); selectAll.addSelectionListener(new SelectionAdapter() { /* * (non-Javadoc) * * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent) */ public void widgetSelected(SelectionEvent arg0) { markersTable.setAllChecked(true); setPageComplete(!resolutionsList.getSelection().isEmpty()); } }); Button deselectAll = new Button(buttonComposite, SWT.PUSH); deselectAll.setText(MarkerMessages.filtersDialog_deselectAll); deselectAll.setLayoutData(new GridData(SWT.FILL, SWT.NONE, false, false)); deselectAll.addSelectionListener(new SelectionAdapter() { /* * (non-Javadoc) * * @see org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse.swt.events.SelectionEvent) */ public void widgetSelected(SelectionEvent arg0) { markersTable.setAllChecked(false); setPageComplete(false); } }); return buttonComposite; } /** * @param control */ private void createResolutionsList(Composite control) { resolutionsList = new ListViewer(control, SWT.BORDER | SWT.SINGLE | SWT.V_SCROLL); resolutionsList.setContentProvider(new IStructuredContentProvider() { /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) */ public Object[] getElements(Object inputElement) { return resolutions.keySet().toArray(); } /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IContentProvider#dispose() */ public void dispose() { } /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, * java.lang.Object, java.lang.Object) */ public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } }); resolutionsList.setLabelProvider(new LabelProvider() { /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object) */ public String getText(Object element) { return ((IMarkerResolution) element).getLabel(); } }); resolutionsList.setInput(this); resolutionsList.setComparator(new ViewerComparator() { /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.ViewerComparator#compare(org.eclipse.jface.viewers.Viewer, * java.lang.Object, java.lang.Object) */ public int compare(Viewer viewer, Object e1, Object e2) { return ((IMarkerResolution) e1).getLabel().compareTo(((IMarkerResolution) e1).getLabel()); } }); resolutionsList.addSelectionChangedListener(new ISelectionChangedListener() { /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent) */ public void selectionChanged(SelectionChangedEvent event) { markersTable.refresh(); IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); if (window == null) return; IWorkbenchPage page = window.getActivePage(); if (page == null) return; } }); } /** * Create the table that shows the markers. * * @param control */ private void createMarkerTable(Composite control) { markersTable = CheckboxTableViewer.newCheckList(control, SWT.BORDER | SWT.V_SCROLL | SWT.SINGLE); createTableColumns(); markersTable.setContentProvider(new IStructuredContentProvider() { /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IContentProvider#dispose() */ public void dispose() { } /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) */ public Object[] getElements(Object inputElement) { IMarkerResolution selected = getSelectedResolution(); if (selected == null) { return new Object[0]; } if (resolutions.containsKey(selected)) { return ((Collection) resolutions.get(selected)).toArray(); } return EMPTY_MARKER_ARRAY; } /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, * java.lang.Object, java.lang.Object) */ public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } }); markersTable.setLabelProvider(new ITableLabelProvider() { /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang.Object, * int) */ public Image getColumnImage(Object element, int columnIndex) { if (columnIndex == 0) return Util.getImage(((IMarker) element).getAttribute(IMarker.SEVERITY, -1)); return null; } /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang.Object, * int) */ public String getColumnText(Object element, int columnIndex) { if (columnIndex == 0) return Util.getResourceName((IMarker) element); int line = ((IMarker) element).getAttribute(IMarker.LINE_NUMBER, -1); if (line < 0) { return MarkerMessages.Unknown; } return NLS.bind(MarkerMessages.label_lineNumber, Integer.toString(line)); } /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener) */ public void addListener(ILabelProviderListener listener) { // do nothing } /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose() */ public void dispose() { // do nothing } /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object, * java.lang.String) */ public boolean isLabelProperty(Object element, String property) { return false; } /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener) */ public void removeListener(ILabelProviderListener listener) { // do nothing } }); markersTable.addCheckStateListener(new ICheckStateListener() { /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.ICheckStateListener#checkStateChanged(org.eclipse.jface.viewers.CheckStateChangedEvent) */ public void checkStateChanged(CheckStateChangedEvent event) { if (event.getChecked() == true) { setPageComplete(true); } else { setPageComplete(markersTable.getCheckedElements().length > 0); } } }); markersTable.addSelectionChangedListener(new ISelectionChangedListener() { /* * (non-Javadoc) * * @see org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent) */ public void selectionChanged(SelectionChangedEvent event) { if (event.getSelection().isEmpty()) return; IMarker marker = (IMarker) ((IStructuredSelection) event.getSelection()).getFirstElement(); ExtendedMarkersView.openMarkerInEditor(marker, PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()); } }); markersTable.setInput(this); } /** * Create the table columns for the receiver. */ private void createTableColumns() { TableLayout layout = new TableLayout(); Table table = markersTable.getTable(); table.setLayout(layout); table.setLinesVisible(true); table.setHeaderVisible(true); layout.addColumnData(new ColumnWeightData(70, true)); TableColumn tc = new TableColumn(table, SWT.NONE, 0); tc.setText(MarkerMessages.MarkerResolutionDialog_Problems_List_Location); layout.addColumnData(new ColumnWeightData(30, true)); tc = new TableColumn(table, SWT.NONE, 0); tc.setText(MarkerMessages.MarkerResolutionDialog_Problems_List_Resource); } /** * Return the marker being edited. * * @return IMarker or <code>null</code> */ public IMarker getSelectedMarker() { ISelection selection = markersTable.getSelection(); if (!selection.isEmpty() && selection instanceof IStructuredSelection) { IStructuredSelection struct = (IStructuredSelection) selection; if (struct.size() == 1) return (IMarker) struct.getFirstElement(); } return null; } /* * (non-Javadoc) * * @see org.eclipse.jface.wizard.WizardPage#isPageComplete() */ public boolean isPageComplete() { return true; } /** * Finish has been pressed. Process the resolutions. monitor the monitor to * report to. */ /** * @param monitor */ /** * @param monitor */ void performFinish(IProgressMonitor monitor) { final IMarkerResolution resolution = getSelectedResolution(); if (resolution == null) return; final Object[] checked = markersTable.getCheckedElements(); if (checked.length == 0) return; if (resolution instanceof WorkbenchMarkerResolution) { try { getWizard().getContainer().run(false, true, new IRunnableWithProgress() { /* * (non-Javadoc) * * @see org.eclipse.jface.operation.IRunnableWithProgress#run(org.eclipse.core.runtime.IProgressMonitor) */ public void run(IProgressMonitor monitor) { IMarker[] markers = new IMarker[checked.length]; System.arraycopy(checked, 0, markers, 0, checked.length); ((WorkbenchMarkerResolution) resolution).run(markers, monitor); } }); } catch (InvocationTargetException e) { StatusManager.getManager().handle(errorFor(e)); } catch (InterruptedException e) { StatusManager.getManager().handle(errorFor(e)); } } else { try { getWizard().getContainer().run(false, true, new IRunnableWithProgress() { /* * (non-Javadoc) * * @see org.eclipse.jface.operation.IRunnableWithProgress#run(org.eclipse.core.runtime.IProgressMonitor) */ public void run(IProgressMonitor monitor) { monitor.beginTask(MarkerMessages.MarkerResolutionDialog_Fixing, checked.length); for (int i = 0; i < checked.length; i++) { // Allow paint events and wake up the button getShell().getDisplay().readAndDispatch(); if (monitor.isCanceled()) return; IMarker marker = (IMarker) checked[i]; monitor.subTask(Util.getProperty(IMarker.MESSAGE, marker)); resolution.run(marker); monitor.worked(1); } } }); } catch (InvocationTargetException e) { StatusManager.getManager().handle(errorFor(e)); } catch (InterruptedException e) { StatusManager.getManager().handle(errorFor(e)); } } } /** * Return the marker resolution that is currently selected/ * * @return IMarkerResolution or <code>null</code> if there is no * selection. */ private IMarkerResolution getSelectedResolution() { ISelection selection = resolutionsList.getSelection(); if (!(selection instanceof IStructuredSelection)) { return null; } Object first = ((IStructuredSelection) selection).getFirstElement(); return (IMarkerResolution) first; } /** * Return a StatusAdapter for the error * * @param exception * @return StatusAdapter */ static final StatusAdapter errorFor(Throwable exception) { IStatus status = new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH, IStatus.ERROR, exception.getLocalizedMessage(), exception); return new StatusAdapter(status); } }