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:com.siteview.mde.internal.ui.editor.category.CategorySection.java

License:Open Source License

public void createClient(Section section, FormToolkit toolkit) {
    fModel = (ISiteModel) getPage().getModel();
    fModel.addModelChangedListener(this);

    Composite container = createClientContainer(section, 2, toolkit);
    createViewerPartControl(container, SWT.MULTI, 2, toolkit);
    fCategoryTreePart = getTreePart();/*from  w  w  w.j a v  a 2  s.co  m*/
    fCategoryViewer = fCategoryTreePart.getTreeViewer();
    fCategoryViewer.setContentProvider(new CategoryContentProvider());
    fSiteLabelProvider = new CategoryLabelProvider();
    fCategoryViewer.setLabelProvider(fSiteLabelProvider);

    fCategoryViewer.setInput(fModel.getSite());
    int ops = DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_DEFAULT;
    Transfer[] transfers = new Transfer[] { ModelDataTransfer.getInstance() };
    if (isEditable()) {
        fCategoryViewer.addDropSupport(ops, transfers, new ViewerDropAdapter(fCategoryViewer) {
            public void dragEnter(DropTargetEvent event) {
                Object target = determineTarget(event);
                if (target == null && event.detail == DND.DROP_COPY) {
                    event.detail = DND.DROP_MOVE;
                }
                super.dragEnter(event);
            }

            /*
             * (non-Javadoc)
             * 
             * @see org.eclipse.jface.viewers.ViewerDropAdapter#dragOperationChanged(org.eclipse.swt.dnd.DropTargetEvent)
             */
            public void dragOperationChanged(DropTargetEvent event) {
                Object target = determineTarget(event);
                if (target == null && event.detail == DND.DROP_COPY) {
                    event.detail = DND.DROP_MOVE;
                }
                super.dragOperationChanged(event);
            }

            /*
             * (non-Javadoc)
             * 
             * @see org.eclipse.jface.viewers.ViewerDropAdapter#dragOver(org.eclipse.swt.dnd.DropTargetEvent)
             */
            public void dragOver(DropTargetEvent event) {
                Object target = determineTarget(event);
                if (target == null && event.detail == DND.DROP_COPY) {
                    event.detail = DND.DROP_MOVE;
                }
                super.dragOver(event);
            }

            /**
             * Returns the position of the given event's coordinates
             * relative to its target. The position is determined to
             * be before, after, or on the item, based on some
             * threshold value.
             * 
             * @param event
             *            the event
             * @return one of the <code>LOCATION_* </code>
             *         constants defined in this class
             */
            protected int determineLocation(DropTargetEvent event) {
                if (!(event.item instanceof Item)) {
                    return LOCATION_NONE;
                }
                Item item = (Item) event.item;
                Point coordinates = new Point(event.x, event.y);
                coordinates = getViewer().getControl().toControl(coordinates);
                if (item != null) {
                    Rectangle bounds = getBounds(item);
                    if (bounds == null) {
                        return LOCATION_NONE;
                    }
                }
                return LOCATION_ON;
            }

            public boolean performDrop(Object data) {
                if (!(data instanceof Object[]))
                    return false;
                Object target = getCurrentTarget();

                int op = getCurrentOperation();
                Object[] objects = (Object[]) data;
                if (objects.length > 0 && objects[0] instanceof SiteFeatureAdapter) {
                    if (op == DND.DROP_COPY && target != null) {
                        copyFeature((SiteFeatureAdapter) objects[0], target);
                    } else {
                        moveFeature((SiteFeatureAdapter) objects[0], target);
                    }
                    return true;
                }
                return false;
            }

            public boolean validateDrop(Object target, int operation, TransferData transferType) {
                return (target instanceof ISiteCategoryDefinition || target == null);
            }

        });
    }

    fCategoryViewer.addDragSupport(DND.DROP_MOVE | DND.DROP_COPY, transfers, new DragSourceListener() {
        public void dragStart(DragSourceEvent event) {
            IStructuredSelection ssel = (IStructuredSelection) fCategoryViewer.getSelection();
            if (ssel == null || ssel.isEmpty() || !(ssel.getFirstElement() instanceof SiteFeatureAdapter)) {
                event.doit = false;
            }
        }

        public void dragSetData(DragSourceEvent event) {
            IStructuredSelection ssel = (IStructuredSelection) fCategoryViewer.getSelection();
            event.data = ssel.toArray();
        }

        public void dragFinished(DragSourceEvent event) {
        }
    });

    fCategoryTreePart.setButtonEnabled(BUTTON_ADD_CATEGORY, isEditable());
    fCategoryTreePart.setButtonEnabled(BUTTON_ADD_FEATURE, isEditable());

    // fCategoryViewer.expandAll();
    toolkit.paintBordersFor(container);
    section.setClient(container);
    initialize();
}

From source file:com.siteview.mde.internal.ui.editor.feature.DataSection.java

License:Open Source License

private void handleDelete() {
    IStructuredSelection ssel = (IStructuredSelection) fDataViewer.getSelection();

    if (ssel.isEmpty())
        return;/*from www  .  j  av  a2 s. c  o  m*/
    IFeatureModel model = (IFeatureModel) getPage().getModel();
    if (!model.isEditable()) {
        return;
    }
    IFeature feature = model.getFeature();

    try {
        IFeatureData[] removed = new IFeatureData[ssel.size()];
        int i = 0;
        for (Iterator iter = ssel.iterator(); iter.hasNext();) {
            IFeatureData iobj = (IFeatureData) iter.next();
            removed[i++] = iobj;
        }
        feature.removeData(removed);
    } catch (CoreException e) {
        MDEPlugin.logException(e);
    }
}

From source file:com.siteview.mde.internal.ui.editor.feature.IncludedFeaturesSection.java

License:Open Source License

private void handleDelete() {
    IStructuredSelection ssel = (IStructuredSelection) fIncludesViewer.getSelection();

    if (ssel.isEmpty())
        return;/*from   w w  w .j  a v a 2 s. com*/
    IFeatureModel model = (IFeatureModel) getPage().getModel();
    if (!model.isEditable()) {
        return;
    }
    IFeature feature = model.getFeature();

    try {
        IFeatureChild[] removed = new IFeatureChild[ssel.size()];
        int i = 0;
        for (Iterator iter = ssel.iterator(); iter.hasNext();) {
            IFeatureChild iobj = (IFeatureChild) iter.next();
            removed[i++] = iobj;
        }
        feature.removeIncludedFeatures(removed);
    } catch (CoreException e) {
        MDEPlugin.logException(e);
    }
}

From source file:com.siteview.mde.internal.ui.editor.feature.PluginSection.java

License:Open Source License

private void handleDelete() {
    IStructuredSelection ssel = (IStructuredSelection) fPluginViewer.getSelection();

    if (ssel.isEmpty())
        return;/*from   ww  w  . j ava2s. c o  m*/
    IFeatureModel model = (IFeatureModel) getPage().getModel();
    if (!model.isEditable()) {
        return;
    }
    IFeature feature = model.getFeature();

    try {
        IFeaturePlugin[] removed = new IFeaturePlugin[ssel.size()];
        int i = 0;
        for (Iterator iter = ssel.iterator(); iter.hasNext();) {
            IFeaturePlugin iobj = (IFeaturePlugin) iter.next();
            removed[i++] = iobj;
        }
        feature.removePlugins(removed);
    } catch (CoreException e) {
        MDEPlugin.logException(e);
    }
}

From source file:com.siteview.mde.internal.ui.editor.feature.RequiresSection.java

License:Open Source License

private void handleDelete() {
    IFeatureModel model = (IFeatureModel) getPage().getModel();
    if (!model.isEditable()) {
        return;//ww w . j a v  a 2 s  . co m
    }
    IFeature feature = model.getFeature();
    IStructuredSelection selection = (IStructuredSelection) fPluginViewer.getSelection();
    if (selection.isEmpty())
        return;

    try {
        IFeatureImport[] deleted = new IFeatureImport[selection.size()];
        int i = 0;
        for (Iterator iter = selection.iterator(); iter.hasNext();) {
            IFeatureImport iimport = (IFeatureImport) iter.next();
            deleted[i++] = iimport;
        }
        feature.removeImports(deleted);
    } catch (CoreException e) {
        MDEPlugin.logException(e);
    }
}

From source file:com.siteview.mde.internal.ui.editor.feature.RequiresSection.java

License:Open Source License

protected void fillContextMenu(IMenuManager manager) {
    IStructuredSelection selection = (StructuredSelection) fPluginViewer.getSelection();
    if (!selection.isEmpty()) {
        manager.add(fDeleteAction);//from ww w  . jav a 2 s  .  co  m
        manager.add(new Separator());
    }
    getPage().getMDEEditor().getContributor().contextMenuAboutToShow(manager);
    manager.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
}

From source file:com.siteview.mde.internal.ui.editor.feature.URLSection.java

License:Open Source License

private void handleDelete() {
    IStructuredSelection ssel = (IStructuredSelection) fUrlViewer.getSelection();

    if (ssel.isEmpty())
        return;/* www  .j a v  a 2s  .  co  m*/
    IFeatureModel model = (IFeatureModel) getPage().getModel();
    if (!model.isEditable()) {
        return;
    }
    IFeature feature = model.getFeature();

    IFeatureURL url = feature.getURL();
    if (url == null) {
        return;
    }
    for (Iterator iter = ssel.iterator(); iter.hasNext();) {
        IFeatureURLElement urlElement = (IFeatureURLElement) iter.next();
        // IFeature feature = urlElement.getFeature();
        try {
            url.removeDiscovery(urlElement);
        } catch (CoreException e) {
            MDEPlugin.logException(e);
        }
    }
}

From source file:com.siteview.mde.internal.ui.editor.monitor.ExtensionPointsSection.java

License:Open Source License

protected void handleDoubleClick(IStructuredSelection selection) {
    if (!selection.isEmpty()) {
        MonitorExtensionPointNode extensionPoint = (MonitorExtensionPointNode) selection.getFirstElement();
        String pointID = extensionPoint.getId();
        // For some stupid reason extensionPoint.getFullId() does not return the full id.
        IBaseModel model = getPage().getMDEEditor().getAggregateModel();
        String basePointID = ((IMonitorModelBase) model).getMonitorBase().getId();
        pointID = basePointID + '.' + pointID;

        OpenSchemaAction action = new OpenSchemaAction();
        action.setInput(pointID);/*from ww w.j a  v  a2s. com*/
        action.run();
    }
}

From source file:com.siteview.mde.internal.ui.editor.monitor.ExtensionsSection.java

License:Open Source License

private void handleDelete() {
    IStructuredSelection sel = (IStructuredSelection) fExtensionTree.getSelection();
    if (sel.isEmpty())
        return;/*www. jav a  2  s. co  m*/
    for (Iterator iter = sel.iterator(); iter.hasNext();) {
        IMonitorObject object = (IMonitorObject) iter.next();
        try {
            IStructuredSelection newSelection = null;
            boolean sorted = fSortAction != null && fSortAction.isChecked();
            if (object instanceof IMonitorElement) {
                IMonitorElement ee = (IMonitorElement) object;
                IMonitorParent parent = (IMonitorParent) ee.getParent();
                if (!sorted) {
                    int index = getNewSelectionIndex(parent.getIndexOf(ee), parent.getChildCount());
                    newSelection = index == -1 ? new StructuredSelection(parent)
                            : new StructuredSelection(parent.getChildren()[index]);
                } else {
                    IMonitorObject original[] = parent.getChildren();
                    IMonitorObject objects[] = new IMonitorObject[original.length];
                    for (int i = 0; i < original.length; i++)
                        objects[i] = original[i];
                    fExtensionTree.getComparator().sort(fExtensionTree, objects);
                    int index = getNewSelectionIndex(getArrayIndex(objects, ee), objects.length);
                    newSelection = index == -1 ? new StructuredSelection(parent)
                            : new StructuredSelection(objects[index]);
                }
                parent.remove(ee);
            } else if (object instanceof IMonitorExtension) {
                IMonitorExtension extension = (IMonitorExtension) object;
                IMonitorBase plugin = extension.getMonitorBase();
                if (!sorted) {
                    int index = getNewSelectionIndex(plugin.getIndexOf(extension),
                            plugin.getExtensions().length);
                    if (index != -1)
                        newSelection = new StructuredSelection(plugin.getExtensions()[index]);
                } else {
                    IMonitorExtension original[] = plugin.getExtensions();
                    IMonitorExtension extensions[] = new IMonitorExtension[original.length];
                    for (int i = 0; i < original.length; i++)
                        extensions[i] = original[i];
                    fExtensionTree.getComparator().sort(fExtensionTree, extensions);
                    int index = getNewSelectionIndex(getArrayIndex(extensions, extension), extensions.length);
                    if (index != -1)
                        newSelection = new StructuredSelection(extensions[index]);
                }
                plugin.remove(extension);
            }
            if (newSelection != null)
                fExtensionTree.setSelection(newSelection);
        } catch (CoreException e) {
            MDEPlugin.logException(e);
        }
    }
}

From source file:com.siteview.mde.internal.ui.editor.monitor.RequiresSection.java

License:Open Source License

private void handleRemove() {
    IStructuredSelection ssel = (IStructuredSelection) fImportViewer.getSelection();
    if (!ssel.isEmpty()) {
        IMonitorModelBase model = (IMonitorModelBase) getPage().getModel();
        IMonitorBase pluginBase = model.getMonitorBase();
        IMonitorImport[] imports = new IMonitorImport[ssel.size()];
        int i = 0;
        for (Iterator iter = ssel.iterator(); iter.hasNext(); i++)
            imports[i] = ((ImportObject) iter.next()).getImport();

        try {// w  w  w .  j  av a 2  s  .  c  om
            removeImports(pluginBase, imports);
        } catch (CoreException e) {
            MDEPlugin.logException(e);
        }
        updateButtons();
    }
}