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/**
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*
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*/
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package eu.etaxonomy.taxeditor.editor.view.concept.graph;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.StructuredSelection;
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import org.eclipse.jface.viewers.Viewer;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.ui.IEditorInput;
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import org.eclipse.ui.IEditorPart;
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import org.eclipse.ui.IWorkbenchPart;
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import org.eclipse.zest.core.viewers.GraphViewer;
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import org.eclipse.zest.core.widgets.ZestStyles;
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import org.eclipse.zest.layouts.LayoutAlgorithm;
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import org.eclipse.zest.layouts.LayoutStyles;
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import org.eclipse.zest.layouts.algorithms.TreeLayoutAlgorithm;
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import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
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import eu.etaxonomy.taxeditor.editor.l10n.Messages;
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import eu.etaxonomy.taxeditor.view.AbstractCdmEditorViewPart;
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/**
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* @author andreas
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*
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*/
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public class ConceptGraphView extends AbstractCdmEditorViewPart {
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public static final String ID = "eu.etaxonomy.taxeditor.editor.view.concept.graph"; //$NON-NLS-1$
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private GraphViewer viewer;
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private LayoutAlgorithm layoutAlgoritm;
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/* (non-Javadoc)
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* @see org.eclipse.ui.ISelectionListener#selectionChanged(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
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*/
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@Override
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protected void selectionChanged_internal(IWorkbenchPart part, ISelection selection) {
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// if(part instanceof ConceptGraphView){
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// // ConceptGraphView is maximized
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// return;
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// }
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if(EditorUtil.getActiveEditor() == null){
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showEmptyPage();
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return;
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}
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if(part instanceof BulkEditor){
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showEmptyPage();
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return;
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}
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if(part instanceof MultiPageTaxonEditor){
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if(! part.equals(this.part)){
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IEditorInput input = ((IEditorPart) part).getEditorInput();
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showViewer(part, new StructuredSelection(input));
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}
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showViewer();
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}
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.operation.IPostOperationEnabled#onComplete()
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*/
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@Override
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public boolean onComplete() {
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// TODO IGNORED
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return false;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.view.AbstractCdmViewPart#getViewer()
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*/
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@Override
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public Viewer getViewer() {
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return viewer;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.view.AbstractCdmViewPart#createViewer(org.eclipse.swt.widgets.Composite)
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*/
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@Override
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public void createViewer(Composite parent) {
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viewer = new GraphViewer(parent, SWT.NONE);
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getSite().setSelectionProvider(viewer);
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viewer.setContentProvider(new ConceptGraphContentProvider());
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viewer.setLabelProvider(new ConceptGraphLabelProvider());
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viewer.setConnectionStyle(ZestStyles.CONNECTIONS_DIRECTED);
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viewer.setLayoutAlgorithm(getLayoutAlgoritm(), false);
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// createMenu();
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//
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// createToolbar();
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}
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private LayoutAlgorithm getLayoutAlgoritm() {
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if (layoutAlgoritm == null) {
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// layoutAlgoritm = new CompositeLayoutAlgorithm(
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// LayoutStyles.NO_LAYOUT_NODE_RESIZING,
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// new LayoutAlgorithm[] {
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// new TreeLayoutAlgorithm(
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// LayoutStyles.NO_LAYOUT_NODE_RESIZING),
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// new HorizontalShift(
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// LayoutStyles.NO_LAYOUT_NODE_RESIZING) });
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layoutAlgoritm = new TreeLayoutAlgorithm(
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LayoutStyles.NO_LAYOUT_NODE_RESIZING);
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layoutAlgoritm.setEntityAspectRatio(0.5);
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}
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return layoutAlgoritm;
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}
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@Override
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protected String getViewName() {
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return Messages.ConceptGraphView_VIEWER_NAME;
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}
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}
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