gerrit.simantics Code Review - simantics/district.git/blob

   1 package org.simantics.district.selection.ui;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collection;
   5 import java.util.Collections;
   6 import java.util.List;
   7
   8 import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
   9 import org.eclipse.jface.viewers.ColumnLabelProvider;
  10 import org.eclipse.jface.viewers.ColumnViewerToolTipSupport;
  11 import org.eclipse.jface.viewers.DoubleClickEvent;
  12 import org.eclipse.jface.viewers.IDoubleClickListener;
  13 import org.eclipse.jface.viewers.IStructuredSelection;
  14 import org.eclipse.jface.viewers.ITreeContentProvider;
  15 import org.eclipse.jface.viewers.StructuredSelection;
  16 import org.eclipse.jface.viewers.TreeSelection;
  17 import org.eclipse.jface.viewers.TreeViewer;
  18 import org.eclipse.jface.viewers.TreeViewerColumn;
  19 import org.eclipse.jface.viewers.Viewer;
  20 import org.eclipse.swt.SWT;
  21 import org.eclipse.swt.graphics.Image;
  22 import org.eclipse.swt.layout.FillLayout;
  23 import org.eclipse.swt.widgets.Composite;
  24 import org.eclipse.swt.widgets.Tree;
  25 import org.simantics.Simantics;
  26 import org.simantics.browsing.ui.common.AdaptableHintContext;
  27 import org.simantics.db.ReadGraph;
  28 import org.simantics.db.Resource;
  29 import org.simantics.db.common.procedure.adapter.SyncListenerAdapter;
  30 import org.simantics.db.common.request.ResourceRead;
  31 import org.simantics.db.exception.DatabaseException;
  32 import org.simantics.db.layer0.QueryIndexUtils;
  33 import org.simantics.db.layer0.SelectionHints;
  34 import org.simantics.db.layer0.request.ActiveModels;
  35 import org.simantics.db.layer0.variable.Variable;
  36 import org.simantics.db.request.Read;
  37 import org.simantics.district.network.ui.DistrictNetworkUIUtil;
  38 import org.simantics.district.selection.ElementSelectionResource;
  39 import org.simantics.district.selection.ElementSelector;
  40 import org.simantics.district.selection.ElementSelector.DiagramGenerator;
  41 import org.simantics.district.selection.ElementSelector.ExplicitGenerator;
  42 import org.simantics.layer0.Layer0;
  43 import org.simantics.scl.runtime.Lists;
  44 import org.simantics.scl.runtime.function.FunctionImpl1;
  45 import org.simantics.ui.selection.AnyResource;
  46 import org.simantics.ui.selection.AnyVariable;
  47 import org.simantics.ui.selection.WorkbenchSelectionContentType;
  48 import org.slf4j.Logger;
  49 import org.slf4j.LoggerFactory;
  50
  51 public class ElementSelectorTableUI extends Composite {
  52
  53         private static final Logger LOGGER = LoggerFactory.getLogger(ElementSelectorTableUI.class);
  54
  55         private TreeViewer viewer;
  56         private TreeViewerColumn column1;
  57         private TreeViewerColumn column2;
  58
  59         public ElementSelectorTableUI(ESelectionService selectionService, Composite parent, int style) {
  60                 super(parent, style);
  61                 parent.setLayout(new FillLayout());
  62                 //        GridDataFactory.fillDefaults().grab(true, true).applyTo(this);
  63                 //        GridLayoutFactory.fillDefaults().numColumns(1).applyTo(this);
  64                 this.setLayout(new FillLayout());
  65
  66                 viewer = new TreeViewer(this, SWT.FULL_SELECTION);
  67                 viewer.addDoubleClickListener(new DoubleClickListener(selectionService));
  68
  69                 viewer.setContentProvider(new ITreeContentProvider() {
  70                         @Override
  71                         public boolean hasChildren(Object element) {
  72                                 return false;
  73                         }
  74
  75                         @Override
  76                         public Object getParent(Object element) {
  77                                 return null;
  78                         }
  79
  80                         @Override
  81                         public Object[] getElements(Object inputElement) {
  82                                 if (inputElement == null || !(inputElement instanceof Collection))
  83                                         return new Object[0];
  84
  85                                 return ((Collection<?>)inputElement).toArray();
  86                         }
  87
  88                         @Override
  89                         public Object[] getChildren(Object parentElement) {
  90                                 return null;
  91                         }
  92
  93                         @Override
  94                         public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  95                                 ITreeContentProvider.super.inputChanged(viewer, oldInput, newInput);
  96                         }
  97                 });
  98
  99                 Simantics.getSession().asyncRequest(new SelectionsRequest(), new SyncListenerAdapter<Collection<ElementSelector>>() {
 100                         public void execute(ReadGraph graph, Collection<ElementSelector> result) {
 101                                 parent.getDisplay().asyncExec(() -> {
 102                                         viewer.setInput(result);
 103                                 });
 104                         }
 105
 106                         @Override
 107                         public void exception(ReadGraph graph, Throwable t) throws DatabaseException {
 108                                 LOGGER.error("Error getting element selector list", t);
 109                         }
 110
 111                         @Override
 112                         public boolean isDisposed() {
 113                                 return ElementSelectorTableUI.this.isDisposed();
 114                         }
 115                 });
 116
 117                 ColumnViewerToolTipSupport.enableFor(viewer);
 118
 119                 Tree table = viewer.getTree();
 120                 table.setHeaderVisible(true);
 121                 table.setLinesVisible(true);
 122
 123                 column1 = new TreeViewerColumn(viewer, SWT.NONE);
 124                 column1.getColumn().setText("Name");
 125                 column1.getColumn().setWidth(200);
 126                 column1.getColumn().setResizable(true);
 127                 column1.setLabelProvider(new ColumnLabelProvider() {
 128                         @Override
 129                         public String getText(Object element) {
 130                                 ElementSelector selector = (ElementSelector) element;
 131                                 return selector.getName();
 132                         }
 133
 134                         @Override
 135                         public Image getImage(Object element) {
 136                                 return null;
 137                         }
 138                 });
 139
 140                 column2 = new TreeViewerColumn(viewer, SWT.NONE);
 141                 column2.getColumn().setText("Query");
 142                 column2.getColumn().setWidth(600);
 143                 column2.getColumn().setResizable(true);
 144                 column2.setLabelProvider(new ColumnLabelProvider() {
 145                         @Override
 146                         public String getText(Object element) {
 147                                 ElementSelector selector = (ElementSelector) element;
 148                                 return selector.getExpression();
 149                         }
 150
 151                         @Override
 152                         public Image getImage(Object element) {
 153                                 return null;
 154                         }
 155                 });
 156         }
 157
 158         public Tree getTree() {
 159                 return viewer.getTree();
 160         }
 161
 162         public ElementSelector getSelectedItem() {
 163                 IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
 164                 return selection != null ? (ElementSelector) selection.getFirstElement() : null;
 165         }
 166
 167         private static final class SelectionElement extends AdaptableHintContext {
 168                 private SelectionElement(Key[] keys) {
 169                         super(keys);
 170                 }
 171
 172                 @SuppressWarnings("unchecked")
 173                 public <T> T getContent(WorkbenchSelectionContentType<T> contentType) {
 174                         Resource element = getHint(SelectionHints.KEY_MAIN);
 175                         if (contentType instanceof AnyResource) {
 176                                 return (T)element;
 177                         }
 178                         else if (contentType instanceof AnyVariable) {
 179                                 try {
 180                                         return (T) Simantics.getSession().syncRequest(new ResourceRead<Variable>(element) {
 181                                                 public Variable perform(ReadGraph graph) throws DatabaseException {
 182                                                         return ElementSelector.getVariableForElement(graph, resource);
 183                                                 }
 184                                         });
 185                                 } catch (DatabaseException e) {
 186                                         return null;
 187                                 }
 188                         }
 189
 190                         return null;
 191                 }
 192         }
 193
 194         public static final class SelectionsRequest implements Read<Collection<ElementSelector>> {
 195                 @Override
 196                 public Collection<ElementSelector> perform(ReadGraph graph) throws DatabaseException {
 197                         Layer0 L0 = Layer0.getInstance(graph);
 198                         ElementSelectionResource ES = ElementSelectionResource.getInstance(graph);
 199
 200                         Resource model = ActiveModels.getPossibleActiveModel(graph, Simantics.getProjectResource());
 201                         if (model == null) {
 202                                 return Collections.emptyList();
 203                         }
 204
 205                         List<Resource> libs = QueryIndexUtils.searchByType(graph, model, ES.SelectionLibrary);
 206                         if (libs.isEmpty())
 207                                 return Collections.emptyList();
 208
 209                         Resource lib = libs.get(0);
 210
 211                         List<ElementSelector> result = new ArrayList<>();
 212                         for (Resource selection : graph.getObjects(lib, L0.ConsistsOf)) {
 213                                 if (!graph.isInstanceOf(selection, ES.Selection))
 214                                         continue;
 215
 216                                 result.add(ElementSelector.getSelector(graph, selection));
 217                         }
 218
 219                         return result;
 220                 }
 221         }
 222
 223         private static final class DoubleClickListener implements IDoubleClickListener {
 224                 private final ESelectionService selectionService;
 225                 private Resource model;
 226
 227                 private DoubleClickListener(ESelectionService selectionService) {
 228                         this.selectionService = selectionService;
 229                 }
 230
 231                 @Override
 232                 public void doubleClick(DoubleClickEvent event) {
 233                         TreeSelection selection = (TreeSelection) event.getViewer().getSelection();
 234                         ElementSelector query = (ElementSelector) selection.getFirstElement();
 235                         try {
 236                                 List<Resource> result = Simantics.getSession().syncRequest(new Read<List<Resource>>() {
 237                                         @Override
 238                                         public List<Resource> perform(ReadGraph graph) throws DatabaseException {
 239                                                 model = ActiveModels.getPossibleActiveModel(graph, Simantics.getProjectResource());
 240                                                 if (model == null) {
 241                                                         LOGGER.warn("No active model");
 242                                                         return Collections.emptyList();
 243                                                 }
 244
 245                                                 return query.selectElementsFrom(graph, model);
 246                                         }
 247                                 });
 248
 249                                 if (query.getGenerator() instanceof DiagramGenerator || query.getGenerator() instanceof ExplicitGenerator) {
 250                                         DistrictNetworkUIUtil.openDNDiagramWithSelection(event.getViewer().getControl().getDisplay(), result);
 251                                 }
 252                                 else {
 253                                         selectionService.setPostSelection(new StructuredSelection(Lists.map(new FunctionImpl1<Resource, AdaptableHintContext>() {
 254                                                 public AdaptableHintContext apply(Resource p0) {
 255                                                         AdaptableHintContext selectionElement = new SelectionElement(SelectionHints.STD_KEYS);
 256                                                         selectionElement.setHint(SelectionHints.KEY_MAIN, p0);
 257                                                         selectionElement.setHint(SelectionHints.KEY_MODEL, model);
 258                                                         return selectionElement;
 259                                                 }
 260                                         }, result)));
 261                                 }
 262                         } catch (DatabaseException e) {
 263                                 LOGGER.error("Element selection query failed", e);
 264                         }
 265                 }
 266         }
 267 }