| /* |
| * (c) Copyright IBM Corp. 2000, 2001. |
| * All Rights Reserved. |
| */ |
| package org.eclipse.jdt.internal.junit.util; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.jdt.internal.junit.wizards.WizardMessages; |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.jface.viewers.CheckStateChangedEvent; |
| import org.eclipse.jface.viewers.CheckboxTableViewer; |
| import org.eclipse.jface.viewers.ICheckStateListener; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.ViewerFilter; |
| import org.eclipse.jface.viewers.ViewerSorter; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.BusyIndicator; |
| 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.Control; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Table; |
| import org.eclipse.ui.dialogs.ISelectionStatusValidator; |
| import org.eclipse.ui.dialogs.SelectionStatusDialog; |
| |
| /** |
| * A dialog with checked table viewer. |
| * |
| * TO DO: this class is duplicated from org.eclipse.jdt.ui |
| */ |
| public class CheckedTableSelectionDialog extends SelectionStatusDialog { |
| |
| private CheckboxTableViewer fViewer; |
| |
| private ILabelProvider fLabelProvider; |
| private IStructuredContentProvider fContentProvider; |
| |
| private ISelectionStatusValidator fValidator= null; |
| private ViewerSorter fSorter; |
| private String fEmptyListMessage= WizardMessages.getString("CheckedTableSelectionDialog.emptyListMessage"); //$NON-NLS-1$ |
| |
| private IStatus fCurrStatus= new JUnitStatus(); |
| private List fFilters; |
| private Object fInput; |
| private boolean fIsEmpty; |
| |
| private int fWidth= 40; |
| private int fHeight= 18; |
| |
| /** |
| * Constructs an instance of <code>ElementTreeSelectionDialog</code>. |
| * @param labelProvider the label provider to render the entries |
| * @param contentProvider the content provider to evaluate the tree structure |
| */ |
| public CheckedTableSelectionDialog(Shell parent, ILabelProvider labelProvider, |
| IStructuredContentProvider contentProvider) { |
| super(parent); |
| |
| fLabelProvider= labelProvider; |
| fContentProvider= contentProvider; |
| |
| setResult(new ArrayList(0)); |
| setStatusLineAboveButtons(true); |
| } |
| |
| /** |
| * Sets the initial selection. |
| * Convenience method. |
| * @param selection the initial selection. |
| */ |
| public void setInitialSelection(Object selection) { |
| setInitialSelections(new Object[] {selection}); |
| } |
| |
| /** |
| * Sets the message to be displayed if the list is empty. |
| * @param message the message to be displayed. |
| */ |
| public void setEmptyListMessage(String message) { |
| fEmptyListMessage= message; |
| } |
| |
| /** |
| * Sets the sorter used by the tree viewer. |
| */ |
| public void setSorter(ViewerSorter sorter) { |
| fSorter= sorter; |
| } |
| |
| /** |
| * Adds a filter to the tree viewer. |
| * @param filter a filter. |
| */ |
| public void addFilter(ViewerFilter filter) { |
| if (fFilters == null) |
| fFilters= new ArrayList(4); |
| |
| fFilters.add(filter); |
| } |
| |
| /** |
| * Sets an optional validator to check if the selection is valid. |
| * The validator is invoked whenever the selection changes. |
| * @param validator the validator to validate the selection. |
| */ |
| public void setValidator(ISelectionStatusValidator validator) { |
| fValidator= validator; |
| } |
| |
| /** |
| * Sets the tree input. |
| * @param input the tree input. |
| */ |
| public void setInput(Object input) { |
| fInput= input; |
| } |
| |
| /** |
| * Sets the size of the tree in unit of characters. |
| * @param width the width of the tree. |
| * @param height the height of the tree. |
| */ |
| public void setSize(int width, int height) { |
| fWidth= width; |
| fHeight= height; |
| } |
| |
| protected void updateOKStatus() { |
| if (!fIsEmpty) { |
| if (fValidator != null) { |
| fCurrStatus= fValidator.validate(fViewer.getCheckedElements()); |
| updateStatus(fCurrStatus); |
| } else if (!fCurrStatus.isOK()) { |
| fCurrStatus= new JUnitStatus(); |
| } |
| } else { |
| fCurrStatus= new JUnitStatus(IStatus.ERROR, fEmptyListMessage); |
| } |
| updateStatus(fCurrStatus); |
| } |
| |
| /* |
| * @see Window#open() |
| */ |
| public int open() { |
| fIsEmpty= evaluateIfTableEmpty(fInput); |
| BusyIndicator.showWhile(null, new Runnable() { |
| public void run() { |
| access$superOpen(); |
| } |
| }); |
| return getReturnCode(); |
| } |
| |
| private void access$superOpen() { |
| super.open(); |
| } |
| |
| /** |
| * Handles cancel button pressed event. |
| */ |
| protected void cancelPressed() { |
| setResult(null); |
| super.cancelPressed(); |
| } |
| |
| /* |
| * @see SelectionStatusDialog#computeResult() |
| */ |
| protected void computeResult() { |
| setResult(Arrays.asList(fViewer.getCheckedElements())); |
| } |
| |
| /* |
| * @see Window#create() |
| */ |
| public void create() { |
| super.create(); |
| |
| List initialSelections= getInitialElementSelections(); |
| if (initialSelections.size() > 0) { |
| fViewer.setCheckedElements(initialSelections.toArray()); |
| } |
| |
| updateOKStatus(); |
| } |
| |
| /* |
| * @see Dialog#createDialogArea(Composite) |
| */ |
| protected Control createDialogArea(Composite parent) { |
| Composite composite= (Composite) super.createDialogArea(parent); |
| |
| Label messageLabel= createMessageArea(composite); |
| Control treeWidget= createTableViewer(composite); |
| Control buttonComposite= createSelectionButtons(composite); |
| |
| GridData data= new GridData(GridData.FILL_BOTH); |
| data.widthHint= convertWidthInCharsToPixels(fWidth); |
| data.heightHint= convertHeightInCharsToPixels(fHeight); |
| treeWidget.setLayoutData(data); |
| |
| if (fIsEmpty) { |
| messageLabel.setEnabled(false); |
| treeWidget.setEnabled(false); |
| buttonComposite.setEnabled(false); |
| } |
| return composite; |
| } |
| |
| private Table createTableViewer(Composite parent) { |
| fViewer= CheckboxTableViewer.newCheckList(parent, SWT.BORDER); |
| |
| fViewer.setContentProvider(fContentProvider); |
| fViewer.setLabelProvider(fLabelProvider); |
| fViewer.addCheckStateListener(new ICheckStateListener() { |
| public void checkStateChanged(CheckStateChangedEvent event) { |
| updateOKStatus(); |
| } |
| }); |
| |
| fViewer.setSorter(fSorter); |
| if (fFilters != null) { |
| for (int i= 0; i != fFilters.size(); i++) |
| fViewer.addFilter((ViewerFilter) fFilters.get(i)); |
| } |
| |
| fViewer.setInput(fInput); |
| return fViewer.getTable(); |
| } |
| |
| /** |
| * Add the selection and deselection buttons to the dialog. |
| * @param composite org.eclipse.swt.widgets.Composite |
| */ |
| private Composite createSelectionButtons(Composite composite) { |
| Composite buttonComposite= new Composite(composite, SWT.RIGHT); |
| GridLayout layout= new GridLayout(); |
| layout.numColumns= 2; |
| buttonComposite.setLayout(layout); |
| GridData data= new GridData(GridData.HORIZONTAL_ALIGN_END | GridData.GRAB_HORIZONTAL); |
| data.grabExcessHorizontalSpace= true; |
| composite.setData(data); |
| |
| Button selectButton= createButton(buttonComposite, IDialogConstants.SELECT_ALL_ID, WizardMessages.getString("CheckedTableSelectionDialog.selectAll"), false); //$NON-NLS-1$ |
| |
| SelectionListener listener= new SelectionAdapter() { |
| public void widgetSelected(SelectionEvent e) { |
| fViewer.setCheckedElements(fContentProvider.getElements(fInput)); |
| updateOKStatus(); |
| } |
| }; |
| selectButton.addSelectionListener(listener); |
| |
| Button deselectButton= createButton(buttonComposite, IDialogConstants.DESELECT_ALL_ID, WizardMessages.getString("CheckedTableSelectionDialog.deselectAll"), false); //$NON-NLS-1$ |
| |
| listener= new SelectionAdapter() { |
| public void widgetSelected(SelectionEvent e) { |
| fViewer.setCheckedElements(new Object[0]); |
| updateOKStatus(); |
| } |
| }; |
| deselectButton.addSelectionListener(listener); |
| return buttonComposite; |
| } |
| |
| private boolean evaluateIfTableEmpty(Object input) { |
| Object[] elements= fContentProvider.getElements(input); |
| if (elements.length > 0) { |
| if (fFilters != null) { |
| for (int i= 0; i < fFilters.size(); i++) { |
| ViewerFilter curr= (ViewerFilter)fFilters.get(i); |
| elements= curr.filter(fViewer, input, elements); |
| } |
| } |
| } |
| return elements.length == 0; |
| } |
| } |