Example usage for org.eclipse.jface.viewers ITreeSelection isEmpty

List of usage examples for org.eclipse.jface.viewers ITreeSelection isEmpty

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Introduction

In this page you can find the example usage for org.eclipse.jface.viewers ITreeSelection isEmpty.

Prototype

public boolean isEmpty();

Source Link

Document

Returns whether this selection is empty.

Usage

From source file:com.android.ide.eclipse.adt.internal.editors.layout.gle2.SelectionManager.java

License:Open Source License

/**
 * Sets the selection. It must be an {@link ITreeSelection} where each segment
 * of the tree path is a {@link CanvasViewInfo}. A null selection is considered
 * as an empty selection./*from  w w  w  . j a  va 2 s. co  m*/
 * <p/>
 * This method is invoked by {@link LayoutCanvasViewer#setSelection(ISelection)}
 * in response to an <em>outside</em> selection (compatible with ours) that has
 * changed. Typically it means the outline selection has changed and we're
 * synchronizing ours to match.
 */
@Override
public void setSelection(ISelection selection) {
    if (mInsideUpdateSelection) {
        return;
    }

    boolean changed = false;
    try {
        mInsideUpdateSelection = true;

        if (selection == null) {
            selection = TreeSelection.EMPTY;
        }

        if (selection instanceof ITreeSelection) {
            ITreeSelection treeSel = (ITreeSelection) selection;

            if (treeSel.isEmpty()) {
                // Clear existing selection, if any
                if (!mSelections.isEmpty()) {
                    mSelections.clear();
                    mAltSelection = null;
                    updateActionsFromSelection();
                    redraw();
                }
                return;
            }

            boolean redoLayout = false;

            // Create a list of all currently selected view infos
            Set<CanvasViewInfo> oldSelected = new HashSet<CanvasViewInfo>();
            for (SelectionItem cs : mSelections) {
                oldSelected.add(cs.getViewInfo());
            }

            // Go thru new selection and take care of selecting new items
            // or marking those which are the same as in the current selection
            for (TreePath path : treeSel.getPaths()) {
                Object seg = path.getLastSegment();
                if (seg instanceof CanvasViewInfo) {
                    CanvasViewInfo newVi = (CanvasViewInfo) seg;
                    if (oldSelected.contains(newVi)) {
                        // This view info is already selected. Remove it from the
                        // oldSelected list so that we don't deselect it later.
                        oldSelected.remove(newVi);
                    } else {
                        // This view info is not already selected. Select it now.

                        // reset alternate selection if any
                        mAltSelection = null;
                        // otherwise add it.
                        mSelections.add(createSelection(newVi));
                        changed = true;
                    }
                    if (newVi.isInvisible()) {
                        redoLayout = true;
                    }
                } else {
                    // Unrelated selection (e.g. user clicked in the Project Explorer
                    // or something) -- just ignore these
                    return;
                }
            }

            // Deselect old selected items that are not in the new one
            for (CanvasViewInfo vi : oldSelected) {
                if (vi.isExploded()) {
                    redoLayout = true;
                }
                deselect(vi);
                changed = true;
            }

            if (redoLayout) {
                mCanvas.getEditorDelegate().recomputeLayout();
            }
        }
    } finally {
        mInsideUpdateSelection = false;
    }

    if (changed) {
        redraw();
        fireSelectionChanged();
        updateActionsFromSelection();
    }
}

From source file:com.android.ide.eclipse.adt.internal.wizards.newproject.WorkingSetHelper.java

License:Open Source License

private static IWorkingSet[] getSelectedWorkingSet(IStructuredSelection selection) {
    if (!(selection instanceof ITreeSelection))
        return EMPTY_WORKING_SET_ARRAY;

    ITreeSelection treeSelection = (ITreeSelection) selection;
    if (treeSelection.isEmpty())
        return EMPTY_WORKING_SET_ARRAY;

    List<?> elements = treeSelection.toList();
    if (elements.size() == 1) {
        Object element = elements.get(0);
        TreePath[] paths = treeSelection.getPathsFor(element);
        if (paths.length != 1)
            return EMPTY_WORKING_SET_ARRAY;

        TreePath path = paths[0];
        if (path.getSegmentCount() == 0)
            return EMPTY_WORKING_SET_ARRAY;

        Object candidate = path.getSegment(0);
        if (!(candidate instanceof IWorkingSet))
            return EMPTY_WORKING_SET_ARRAY;

        IWorkingSet workingSetCandidate = (IWorkingSet) candidate;
        if (isValidWorkingSet(workingSetCandidate))
            return new IWorkingSet[] { workingSetCandidate };

        return EMPTY_WORKING_SET_ARRAY;
    }/*w w w  .  j  ava2 s .c  om*/

    ArrayList<Object> result = new ArrayList<Object>();
    for (Iterator<?> iterator = elements.iterator(); iterator.hasNext();) {
        Object element = iterator.next();
        if (element instanceof IWorkingSet && isValidWorkingSet((IWorkingSet) element)) {
            result.add(element);
        }
    }
    return result.toArray(new IWorkingSet[result.size()]);
}

From source file:com.nokia.s60tools.stif.scripteditor.editors.ScriptEditor.java

License:Open Source License

public void selectionChanged(SelectionChangedEvent sce) {
    ITreeSelection selection = (ITreeSelection) sce.getSelection();
    if (selection.isEmpty())
        return;//from  ww w. j a v a2  s .c  om

    TreePath[] selections = selection.getPaths();
    TestCase testCase = (TestCase) selections[0].getFirstSegment();

    IDocument doc = getDocumentProvider().getDocument(getEditorInput());

    String contentOfDoc = doc.get();
    String name = testCase.getName();
    name = name.replaceAll("\\(", "\\\\(").replaceAll("\\)", "\\\\)");
    String patternString = "\\s+title\\s+(" + name + ")\\s*$";

    Pattern pattern = Pattern.compile(patternString, Pattern.MULTILINE);
    Matcher regExMatcher = pattern.matcher(contentOfDoc);
    ArrayList<Integer> indexesList = new ArrayList<Integer>();
    while (regExMatcher.find()) {
        indexesList.add(regExMatcher.start(1));
        indexesList.add(regExMatcher.end(1));
    }

    int oneFromCasesWithSameName = 0;
    if (indexesList.size() > 2) {
        TreeViewer tv = (TreeViewer) sce.getSource();
        Tree tree = tv.getTree();
        TreeItem[] treeItems = tree.getItems();

        for (int i = 0; i < treeItems.length; i++) {
            if (treeItems[i].getText().equals(tree.getSelection()[0].getText())) {
                if (treeItems[i] == tree.getSelection()[0]) {
                    break;
                }
                oneFromCasesWithSameName++;
            }
        }
    }
    if (indexesList.size() > 0) {
        selectAndReveal(indexesList.get(oneFromCasesWithSameName * 2),
                indexesList.get(oneFromCasesWithSameName * 2 + 1)
                        - indexesList.get(oneFromCasesWithSameName * 2));
    }
}

From source file:com.redhat.ceylon.eclipse.code.outline.CeylonOutlinePage.java

License:Open Source License

@Override
public void selectionChanged(SelectionChangedEvent event) {
    super.selectionChanged(event);
    if (!suspend) {
        ITreeSelection sel = (ITreeSelection) event.getSelection();
        if (!sel.isEmpty()) {
            Node node = ((CeylonOutlineNode) sel.getFirstElement()).getTreeNode();
            int startOffset = getStartOffset(node);
            int endOffset = getEndOffset(node);
            int length = endOffset - startOffset + 1;
            ((ITextEditor) getCurrentEditor()).selectAndReveal(startOffset, length);
        }//from www  .  ja  va 2 s. com
    }
}

From source file:com.redhat.ceylon.eclipse.code.wizard.NewCeylonProjectWizardPageOne.java

License:Open Source License

private IWorkingSet[] getSelectedWorkingSet(IStructuredSelection selection) {
    if (!(selection instanceof ITreeSelection))
        return EMPTY_WORKING_SET_ARRAY;

    ITreeSelection treeSelection = (ITreeSelection) selection;
    if (treeSelection.isEmpty())
        return EMPTY_WORKING_SET_ARRAY;

    List<?> elements = treeSelection.toList();
    if (elements.size() == 1) {
        Object element = elements.get(0);
        TreePath[] paths = treeSelection.getPathsFor(element);
        if (paths.length != 1)
            return EMPTY_WORKING_SET_ARRAY;

        TreePath path = paths[0];
        if (path.getSegmentCount() == 0)
            return EMPTY_WORKING_SET_ARRAY;

        Object candidate = path.getSegment(0);
        if (!(candidate instanceof IWorkingSet))
            return EMPTY_WORKING_SET_ARRAY;

        IWorkingSet workingSetCandidate = (IWorkingSet) candidate;
        if (isValidWorkingSet(workingSetCandidate))
            return new IWorkingSet[] { workingSetCandidate };

        return EMPTY_WORKING_SET_ARRAY;
    }// w  ww.  j a  va 2s.com

    ArrayList<IWorkingSet> result = new ArrayList<IWorkingSet>();
    for (Iterator<?> iterator = elements.iterator(); iterator.hasNext();) {
        Object element = iterator.next();
        if (element instanceof IWorkingSet && isValidWorkingSet((IWorkingSet) element)) {
            result.add((IWorkingSet) element);
        }
    }
    return result.toArray(new IWorkingSet[result.size()]);
}

From source file:com.siteview.mde.internal.runtime.registry.RegistryBrowser.java

License:Open Source License

private void makeActions() {
    fRefreshAction = new Action("refresh") { //$NON-NLS-1$
        public void run() {
            BusyIndicator.showWhile(fTreeViewer.getTree().getDisplay(), new Runnable() {
                public void run() {
                    refresh(fTreeViewer.getInput());
                }//from   w w w.j av  a 2s.  c o  m
            });
        }
    };
    fRefreshAction.setText(MDERuntimeMessages.RegistryView_refresh_label);
    fRefreshAction.setToolTipText(MDERuntimeMessages.RegistryView_refresh_tooltip);
    fRefreshAction.setImageDescriptor(PDERuntimePluginImages.DESC_REFRESH);
    fRefreshAction.setDisabledImageDescriptor(PDERuntimePluginImages.DESC_REFRESH_DISABLED);

    fShowPluginsAction = new Action(MDERuntimeMessages.RegistryView_showRunning_label) {
        public void run() {
            if (fShowPluginsAction.isChecked()) {
                fTreeViewer.addFilter(fActiveFilter);
            } else {
                fTreeViewer.removeFilter(fActiveFilter);
            }
            updateTitle();
        }
    };
    fShowPluginsAction.setChecked(fMemento.getString(SHOW_RUNNING_PLUGINS).equals("true")); //$NON-NLS-1$

    fShowDisabledAction = new Action(MDERuntimeMessages.RegistryView_showDisabled_label) {
        public void run() {
            if (fShowDisabledAction.isChecked()) {
                fTreeViewer.addFilter(fDisabledFilter);
            } else {
                fTreeViewer.removeFilter(fDisabledFilter);
            }
            updateTitle();
        }
    };
    fShowDisabledAction.setChecked(fMemento.getString(SHOW_DISABLED_MODE).equals("true")); //$NON-NLS-1$

    fCopyAction = new Action(MDERuntimeMessages.RegistryBrowser_copy_label) {
        public void run() {
            ITreeSelection selection = (ITreeSelection) fFilteredTree.getViewer().getSelection();
            if (selection.isEmpty()) {
                return;
            }

            String textVersion = ((ILabelProvider) fTreeViewer.getLabelProvider())
                    .getText(selection.getFirstElement());
            if ((textVersion != null) && (textVersion.trim().length() > 0)) {
                // set the clipboard contents
                fClipboard.setContents(new Object[] { textVersion },
                        new Transfer[] { TextTransfer.getInstance() });
            }
        }
    };
    fCopyAction.setImageDescriptor(PDERuntimePluginImages.COPY_QNAME);

    fGroupByBundlesAction = new GroupByAction(MDERuntimeMessages.RegistryBrowser_Bundle, BUNDLES);
    int groupBy = getGroupBy();
    fGroupByBundlesAction.setChecked(groupBy == BUNDLES);
    fGroupByExtensionPointsAction = new GroupByAction(MDERuntimeMessages.RegistryBrowser_ExtensionPoint,
            EXTENSION_REGISTRY);
    fGroupByExtensionPointsAction.setChecked(groupBy == EXTENSION_REGISTRY);
    fGroupByServicesAction = new GroupByAction(MDERuntimeMessages.RegistryBrowser_Service, SERVICES);
    fGroupByServicesAction.setChecked(groupBy == SERVICES);

    fShowAdvancedOperationsAction = new Action(MDERuntimeMessages.RegistryView_showAdvanced_label) {
        public void run() { // do nothing
        }
    };
    fShowAdvancedOperationsAction.setChecked(fMemento.getString(SHOW_ADVANCED_MODE).equals("true")); //$NON-NLS-1$

    fStartAction = new Action(MDERuntimeMessages.RegistryView_startAction_label) {
        public void run() {
            try {
                List bundles = getSelectedBundles();
                for (Iterator it = bundles.iterator(); it.hasNext();) {
                    Bundle bundle = (Bundle) it.next();
                    bundle.start();
                }
            } catch (BundleException e) {
                PDERuntimePlugin.log(e);
            }
        }
    };

    fStopAction = new Action(MDERuntimeMessages.RegistryView_stopAction_label) {
        public void run() {
            try {
                List bundles = getSelectedBundles();
                for (Iterator it = bundles.iterator(); it.hasNext();) {
                    Bundle bundle = (Bundle) it.next();
                    bundle.stop();
                }
            } catch (BundleException e) {
                PDERuntimePlugin.log(e);
            }
        }
    };

    fEnableAction = new Action(MDERuntimeMessages.RegistryView_enableAction_label) {
        public void run() {
            List bundles = getSelectedBundles();
            for (Iterator it = bundles.iterator(); it.hasNext();) {
                Bundle bundle = (Bundle) it.next();
                bundle.enable();
            }
        }
    };

    fDisableAction = new Action(MDERuntimeMessages.RegistryView_disableAction_label) {
        public void run() {
            List bundles = getSelectedBundles();
            for (Iterator it = bundles.iterator(); it.hasNext();) {
                Bundle bundle = (Bundle) it.next();
                bundle.disable();
            }
        }
    };

    fDiagnoseAction = new Action(MDERuntimeMessages.RegistryView_diagnoseAction_label) {
        public void run() {
            List bundles = getSelectedBundles();
            for (Iterator it = bundles.iterator(); it.hasNext();) {
                Bundle bundle = (Bundle) it.next();
                MultiStatus problems = bundle.diagnose();

                Dialog dialog;
                if ((problems != null) && (problems.getChildren().length > 0)) {
                    dialog = new DiagnosticsDialog(getSite().getShell(),
                            MDERuntimeMessages.RegistryView_diag_dialog_title, null, problems, IStatus.WARNING);
                    dialog.open();
                } else {
                    MessageDialog.openInformation(getSite().getShell(),
                            MDERuntimeMessages.RegistryView_diag_dialog_title,
                            MDERuntimeMessages.RegistryView_no_unresolved_constraints);
                }

            }
        }
    };

    fCollapseAllAction = new Action("collapseAll") { //$NON-NLS-1$
        public void run() {
            fTreeViewer.collapseAll();
        }
    };
    fCollapseAllAction.setText(MDERuntimeMessages.RegistryView_collapseAll_label);
    fCollapseAllAction.setImageDescriptor(PDERuntimePluginImages.DESC_COLLAPSE_ALL);
    fCollapseAllAction.setToolTipText(MDERuntimeMessages.RegistryView_collapseAll_tooltip);
}

From source file:de.bmw.yamaica.ide.ui.internal.editor.OverviewPage.java

License:Mozilla Public License

private ITreeSelection createSingleSelection(ISelection selection, Object element) {
    ITreeSelection treeSelection = (ITreeSelection) selection;

    if (treeSelection.isEmpty() || treeSelection.size() > 1) {
        Object[] segments = new Object[] { element };
        treeSelection = new TreeSelection(new TreePath(segments));
    }//  w w  w .  j  a  v a 2 s . c  o  m

    return treeSelection;
}

From source file:de.walware.statet.r.internal.objectbrowser.CopyElementNameHandler.java

License:Open Source License

private boolean isValidSelection(ITreeSelection selection) {
    if (selection == null || selection.isEmpty()) {
        return false;
    }//w  ww.  j a  v  a 2 s  .  c o m
    for (final Iterator<?> iter = selection.iterator(); iter.hasNext();) {
        Object element = iter.next();
        if (element instanceof IElementPartition) {
            return false;
        }
    }
    return true;
}

From source file:edu.utexas.cs.orc.orceclipse.edit.OrcContentOutlinePage.java

License:Open Source License

/**
 * Notifies that the selection has changed.
 *
 * @param event event object describing the change
 *//*from w w  w  .  java2 s . com*/
@Override
public void selectionChanged(final SelectionChangedEvent event) {
    super.selectionChanged(event);

    final ITreeSelection selection = (ITreeSelection) event.getSelection();
    if (selection.isEmpty()) {
        return;
    }
    final OutlineTreeNode selection1 = (OutlineTreeNode) selection.getFirstElement();
    if (selection1 instanceof IRegion) {
        final IRegion region = (IRegion) selection1;
        pairedEditor.selectAndReveal(region.getOffset(), region.getLength());
    } else {
        pairedEditor.resetHighlightRange();
    }
}

From source file:eu.modelwriter.marker.internal.MarkerFactory.java

License:Open Source License

/**
 * @param selections// ww w.  ja  va2s. c om
 * @return
 */
public static String getQualifiedName(final ITreeSelection selections) {
    final TreePath[] paths = selections.getPaths();

    // Consider only not empty and single selection
    if (selections.isEmpty() || selections.size() > 1) {
        return null;
    }

    final TreePath path = paths[0];
    IElementComparer comparer = null;
    if (selections instanceof TreeSelection) {
        comparer = ((TreeSelection) selections).getElementComparer();
    }
    System.out.println(path.hashCode(comparer));
    for (int i = 1; i < path.getSegmentCount(); i++) {
        if (path.getSegment(i) instanceof ResourceFactoryImpl) {
            final EcoreResourceFactoryImpl eResourceFactory = (EcoreResourceFactoryImpl) path.getSegment(i);
            System.out.println(eResourceFactory.getClass().getName() + ": " + eResourceFactory.toString());
        } else if (path.getSegment(i) instanceof ENamedElement) {
            final ENamedElement namedElement = (ENamedElement) path.getSegment(i);
            System.out.println(namedElement.getClass().getName() + ": " + namedElement.getName());
        } else {
            System.out.println("?");
        }
    }
    return null;
}