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

Introduction

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

Prototype

public boolean isEmpty();

Source Link

Document

Returns whether this selection is empty.

Usage

From source file:at.spardat.xma.guidesign.presentation.NewComponentWizard.java

License:Open Source License

public static IResource getSelectedResource(IStructuredSelection selection) {
    // Try and get the resource selection to determine a current directory for the file dialog.
    IResource selectedResource = null;// w w  w  . j  a  va  2  s . co  m
    if (selection != null && !selection.isEmpty()) {
        // Get the resource...
        //
        Object selectedElement = selection.iterator().next();
        if (selectedElement instanceof IResource) {
            // Get the resource parent, if its a file.
            //
            selectedResource = (IResource) selectedElement;
            if (selectedResource.getType() == IResource.FILE) {
                selectedResource = selectedResource.getParent();
            }
        }
    }
    return selectedResource;
}

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From source file:au.gov.ga.earthsci.common.ui.dialogs.SpatialReferenceSelectorDialog.java

License:Apache License

private void wireReferenceSelectionListener() {
    referencesView.addSelectionChangedListener(new ISelectionChangedListener() {
        @Override/*  www . jav  a 2s  . c  om*/
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            if (selection.isEmpty()) {
                getButton(IDialogConstants.OK_ID).setEnabled(false);
                selectedSummary = null;
            } else {
                getButton(IDialogConstants.OK_ID).setEnabled(true);
                selectedSummary = (SpatialReferenceSummary) selection.getFirstElement();
            }
        }
    });
}

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From source file:au.gov.ga.earthsci.layer.ui.DrawOrderDragSourceListener.java

License:Apache License

@Override
public void dragStart(DragSourceEvent event) {
    event.doit = false;/* w  ww.  j a v  a2 s.  co m*/
    IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
    if (selection.isEmpty()) {
        return;
    }
    List<?> selectionList = selection.toList();
    for (Object item : selectionList) {
        if (!(item instanceof DrawOrderModel.LayerDrawOrderModelElement)) {
            return;
        }
    }
    event.doit = true;
}

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From source file:bndtools.editor.components.ComponentDetailsPage.java

License:Open Source License

void fillReferenceSection(FormToolkit toolkit, Section section) {

    ToolBar toolbar = new ToolBar(section, SWT.FLAT);
    section.setTextClient(toolbar);/*  w  w w.j  av a2s .  c  om*/

    final ToolItem addItem = new ToolItem(toolbar, SWT.PUSH);
    addItem.setImage(PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_ADD));

    final ToolItem editItem = new ToolItem(toolbar, SWT.PUSH);
    editItem.setImage(imgEdit);
    editItem.setToolTipText("Edit");
    editItem.setEnabled(false);

    final ToolItem removeItem = new ToolItem(toolbar, SWT.PUSH);
    removeItem.setImage(PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_TOOL_DELETE));
    removeItem.setDisabledImage(
            PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_TOOL_DELETE_DISABLED));
    removeItem.setToolTipText("Remove");
    removeItem.setEnabled(false);

    Composite composite = toolkit.createComposite(section);
    section.setClient(composite);

    tableReferences = toolkit.createTable(composite, SWT.FULL_SELECTION | SWT.MULTI | SWT.BORDER);
    tableReferences.setHeaderVisible(true);
    tableReferences.setLinesVisible(false);

    TableColumn col;
    col = new TableColumn(tableReferences, SWT.NONE);
    col.setWidth(100);
    col.setText("Name");

    col = new TableColumn(tableReferences, SWT.NONE);
    col.setWidth(200);
    col.setText("Interface");

    col = new TableColumn(tableReferences, SWT.NONE);
    col.setWidth(35);
    col.setText("Card.");

    col = new TableColumn(tableReferences, SWT.NONE);
    col.setWidth(100);
    col.setText("Target");

    viewerReferences = new TableViewer(tableReferences);
    viewerReferences.setContentProvider(new ArrayContentProvider());
    viewerReferences.setLabelProvider(new ComponentSvcRefTableLabelProvider());

    // Listeners
    viewerReferences.addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) viewerReferences.getSelection();
            editItem.setEnabled(selection.size() == 1);
            removeItem.setEnabled(!selection.isEmpty());
        }
    });
    addItem.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            doAddReference();
        };
    });
    editItem.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            doEditReference();
        };
    });
    removeItem.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            doRemoveReference();
        }
    });

    // Layout
    GridData gd;
    GridLayout layout;

    layout = new GridLayout(1, false);
    layout.verticalSpacing = 5;
    layout.horizontalSpacing = 0;
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    composite.setLayout(layout);

    gd = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 3);
    gd.widthHint = 250;
    gd.heightHint = 70;
    tableReferences.setLayoutData(gd);
}

---

From source file:bndtools.editor.components.ComponentListPart.java

License:Open Source License

void createSection(Section section, FormToolkit toolkit) {
    section.setText(Messages.ComponentListPart_listSectionTitle);

    Composite composite = toolkit.createComposite(section);
    section.setClient(composite);/*from  ww  w  .  j a v  a 2  s .  c  om*/

    table = toolkit.createTable(composite, SWT.MULTI | SWT.FULL_SELECTION | SWT.BORDER);

    viewer = new TableViewer(table);
    viewer.setUseHashlookup(true);
    viewer.setContentProvider(new ArrayContentProvider());
    viewer.setLabelProvider(new ServiceComponentLabelProvider());

    final Button btnAdd = toolkit.createButton(composite, Messages.ComponentListPart_addButton, SWT.PUSH);
    final Button btnRemove = toolkit.createButton(composite, Messages.ComponentListPart_RemoveButton, SWT.PUSH);

    toolkit.paintBordersFor(section);

    // Listeners
    viewer.addSelectionChangedListener(new ISelectionChangedListener() {
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            ArrayList<ServiceComponent> selectedComponents = new ArrayList<ServiceComponent>(selection.size());

            @SuppressWarnings("rawtypes")
            Iterator iterator = selection.iterator();
            while (iterator.hasNext()) {
                String name = (String) iterator.next();
                ServiceComponent component = componentMap.get(name);
                if (component != null)
                    selectedComponents.add(component);
            }

            managedForm.fireSelectionChanged(ComponentListPart.this,
                    new StructuredSelection(selectedComponents));
            btnRemove.setEnabled(!selection.isEmpty());
        }
    });
    viewer.addOpenListener(new IOpenListener() {
        public void open(OpenEvent event) {
            String name = (String) ((IStructuredSelection) event.getSelection()).getFirstElement();
            if (name != null) {
                doOpenComponent(name);
            }
        }
    });
    viewer.addDropSupport(DND.DROP_COPY | DND.DROP_MOVE, new Transfer[] { ResourceTransfer.getInstance() },
            new ComponentListDropAdapter(viewer));
    btnAdd.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            try {
                doAdd();
            } catch (Exception x) {
                Plugin.logError("Error adding component", x);
            }
        }
    });
    btnRemove.addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
            doRemove();
        }
    });

    // Layout
    GridData gd;
    section.setLayoutData(new GridData(GridData.FILL_BOTH));
    composite.setLayout(new GridLayout(2, false));
    gd = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 3);
    gd.widthHint = 250;
    table.setLayoutData(gd);
    btnAdd.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
    btnRemove.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false));
}

---

From source file:bndtools.editor.contents.PrivatePackagesPart.java

License:Open Source License

private void doRemovePackages() {
    IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
    if (!selection.isEmpty()) {
        Iterator<?> elements = selection.iterator();
        List<Object> removed = new LinkedList<Object>();
        while (elements.hasNext()) {
            Object pkg = elements.next();
            if (packages.remove(pkg))
                removed.add(pkg);//  w w w  .java 2 s .  c  o m
        }

        if (!removed.isEmpty()) {
            viewer.remove(removed.toArray());
            markDirty();
        }
    }
}

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From source file:bndtools.editor.pkgpatterns.PkgPatternsListPart.java

License:Open Source License

private void doAddClausesAfterSelection(Collection<? extends C> newClauses) {
    if (newClauses != null && !newClauses.isEmpty()) {
        int selectedIndex = -1;
        IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
        if (!selection.isEmpty()) {
            // find the highest selected index
            for (Iterator<?> iter = selection.iterator(); iter.hasNext();) {
                int index = this.clauses.indexOf(iter.next());
                if (index > selectedIndex)
                    selectedIndex = index;
            }/*from  ww  w .  j  a  v  a 2s .  com*/
        }
        doAddClauses(newClauses, selectedIndex, true);
    }
}

---

From source file:bndtools.editor.pkgpatterns.PkgPatternsListPart.java

License:Open Source License

private void doInsertClausesAtSelection(Collection<? extends C> newClauses) {
    if (newClauses != null && !newClauses.isEmpty()) {
        int selectedIndex;
        IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
        if (selection.isEmpty())
            return;
        selectedIndex = this.clauses.indexOf(selection.getFirstElement());

        doAddClauses(newClauses, selectedIndex, true);
    }//from  w  ww .  j a va2  s  .  c o  m
}

---

From source file:ca.mcgill.cs.swevo.ppa.ui.actions.PPAOnCuAction.java

License:Open Source License

public void selectionChanged(IAction action, ISelection selection) {
    IStructuredSelection sSelection = (IStructuredSelection) selection;
    if (!sSelection.isEmpty()) {
        icu = (ICompilationUnit) sSelection.getFirstElement();
    }/*  ww w  . j  a v a  2 s. c  o  m*/
}

---

From source file:ca.mcgill.cs.swevo.ppa.ui.actions.PPAOnFileAction.java

License:Open Source License

public void selectionChanged(IAction action, ISelection selection) {
    IStructuredSelection sSelection = (IStructuredSelection) selection;
    if (!sSelection.isEmpty()) {
        file = (IFile) sSelection.getFirstElement();
    }//  w w w. jav a2 s  .com
}

---

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