+++ /dev/null
-package net.sourceforge.phpdt.internal.ui.dialogs;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
-import net.sourceforge.phpdt.internal.ui.viewsupport.ContainerCheckedTreeViewer;
-
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.jface.dialogs.IDialogConstants;
-import org.eclipse.jface.viewers.CheckStateChangedEvent;
-import org.eclipse.jface.viewers.CheckboxTreeViewer;
-import org.eclipse.jface.viewers.ICheckStateListener;
-import org.eclipse.jface.viewers.ILabelProvider;
-import org.eclipse.jface.viewers.ITreeContentProvider;
-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.Tree;
-
-/**
- * A class to select elements out of a tree structure.
- */
-public class CheckedTreeSelectionDialog extends SelectionStatusDialog {
-
- private CheckboxTreeViewer fViewer;
-
- private ILabelProvider fLabelProvider;
-
- private ITreeContentProvider fContentProvider;
-
- private ISelectionValidator fValidator = null;
-
- private ViewerSorter fSorter;
-
- private String fEmptyListMessage = "No entries available";
-
- private IStatus fCurrStatus = new StatusInfo();
-
- private List fFilters;
-
- private Object fInput;
-
- private boolean fIsEmpty;
-
- private int fWidth = 60;
-
- private int fHeight = 18;
-
- private boolean fContainerMode;
-
- private Object[] fExpandedElements;
-
- /**
- * 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 CheckedTreeSelectionDialog(Shell parent,
- ILabelProvider labelProvider, ITreeContentProvider contentProvider) {
- super(parent);
-
- fLabelProvider = labelProvider;
- fContentProvider = contentProvider;
-
- setResult(new ArrayList(0));
- setStatusLineAboveButtons(true);
-
- fContainerMode = false;
- fExpandedElements = null;
-
- int shellStyle = getShellStyle();
- setShellStyle(shellStyle | SWT.MAX | SWT.RESIZE);
- }
-
- /**
- * If set, the checked /gray state of containers (inner nodes) is derived
- * from the checked state of its leaf nodes.
- *
- * @param containerMode
- * The containerMode to set
- */
- public void setContainerMode(boolean containerMode) {
- fContainerMode = containerMode;
- }
-
- /**
- * 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(ISelectionValidator validator) {
- fValidator = validator;
- }
-
- /**
- * Sets the tree input.
- *
- * @param input
- * the tree input.
- */
- public void setInput(Object input) {
- fInput = input;
- }
-
- /**
- * Expands the tree
- */
- public void setExpandedElements(Object[] elements) {
- fExpandedElements = elements;
- }
-
- /**
- * 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 StatusInfo();
- }
- } else {
- fCurrStatus = new StatusInfo(IStatus.ERROR, fEmptyListMessage);
- }
- updateStatus(fCurrStatus);
- }
-
- /*
- * @see Window#open()
- */
- public int open() {
- fIsEmpty = evaluateIfTreeEmpty(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 != null) {
- fViewer.setCheckedElements(initialSelections.toArray());
- }
-
- if (fExpandedElements != null) {
- fViewer.setExpandedElements(fExpandedElements);
- }
-
- updateOKStatus();
- }
-
- /*
- * @see Dialog#createDialogArea(Composite)
- */
- protected Control createDialogArea(Composite parent) {
- Composite composite = (Composite) super.createDialogArea(parent);
-
- Label messageLabel = createMessageArea(composite);
- Control treeWidget = createTreeViewer(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 Tree createTreeViewer(Composite parent) {
- if (fContainerMode) {
- fViewer = new ContainerCheckedTreeViewer(parent, SWT.BORDER);
- } else {
- fViewer = new CheckboxTreeViewer(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.getTree();
- }
-
- /**
- * 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, "Select &All", false);
-
- 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, "&Deselect All", false);
-
- listener = new SelectionAdapter() {
- public void widgetSelected(SelectionEvent e) {
- fViewer.setCheckedElements(new Object[0]);
- updateOKStatus();
- }
- };
- deselectButton.addSelectionListener(listener);
- return buttonComposite;
- }
-
- private boolean evaluateIfTreeEmpty(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;
- }
-
-}
\ No newline at end of file
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