--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.modeling.ui.modelBrowser.handlers;\r
+\r
+import gnu.trove.set.hash.THashSet;\r
+\r
+import java.util.Collections;\r
+import java.util.List;\r
+import java.util.Set;\r
+\r
+import org.eclipse.core.commands.AbstractHandler;\r
+import org.eclipse.core.commands.ExecutionEvent;\r
+import org.eclipse.core.commands.ExecutionException;\r
+import org.eclipse.jface.action.IStatusLineManager;\r
+import org.eclipse.jface.viewers.ISelection;\r
+import org.eclipse.jface.viewers.StructuredSelection;\r
+import org.eclipse.swt.dnd.Clipboard;\r
+import org.eclipse.swt.dnd.TextTransfer;\r
+import org.eclipse.swt.dnd.Transfer;\r
+import org.eclipse.swt.widgets.Control;\r
+import org.eclipse.swt.widgets.Display;\r
+import org.eclipse.swt.widgets.Shell;\r
+import org.eclipse.swt.widgets.Tree;\r
+import org.eclipse.swt.widgets.TreeItem;\r
+import org.eclipse.ui.PlatformUI;\r
+import org.eclipse.ui.handlers.HandlerUtil;\r
+import org.simantics.Simantics;\r
+import org.simantics.browsing.ui.BuiltinKeys;\r
+import org.simantics.browsing.ui.GraphExplorer;\r
+import org.simantics.browsing.ui.NodeContext;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.ReadRequest;\r
+import org.simantics.db.common.utils.Logger;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.layer0.SelectionHints;\r
+import org.simantics.db.layer0.adapter.CopyHandler;\r
+import org.simantics.db.layer0.util.ClipboardUtils;\r
+import org.simantics.db.layer0.util.SimanticsClipboardImpl;\r
+import org.simantics.db.layer0.variable.Variable;\r
+import org.simantics.ui.utils.ResourceAdaptionUtils;\r
+import org.simantics.utils.datastructures.hints.IHintContext;\r
+import org.simantics.utils.ui.ISelectionUtils;\r
+import org.simantics.utils.ui.SWTUtils;\r
+import org.simantics.utils.ui.SWTUtils.ControlFilter;\r
+import org.simantics.utils.ui.workbench.WorkbenchUtils;\r
+\r
+public class StandardCopyHandler extends AbstractHandler {\r
+\r
+ private static IStatusLineManager status;\r
+\r
+ private static List<Variable> getVariables(ISelection selection) {\r
+ NodeContext context = ISelectionUtils.getSinglePossibleKey(selection, SelectionHints.KEY_MAIN, NodeContext.class);\r
+ if(context == null) return Collections.emptyList();\r
+ Object input = context.getConstant(BuiltinKeys.INPUT);\r
+ IHintContext hints = input instanceof IHintContext ? (IHintContext) input : null;\r
+ if(hints == null) return Collections.emptyList();\r
+ Variable var = hints.getHint(SelectionHints.KEY_SELECTION_PROPERTY);\r
+ if(var == null) return Collections.emptyList();\r
+ else return Collections.singletonList(var);\r
+ }\r
+\r
+ private boolean copyText(ISelection selection) {\r
+ if(selection instanceof StructuredSelection) {\r
+ StructuredSelection sel = (StructuredSelection)selection;\r
+ if(sel.size() == 1) {\r
+ Object element = sel.getFirstElement();\r
+ if(element instanceof String) {\r
+ setSystemClipboardText((String) element);\r
+ }\r
+ }\r
+ }\r
+ return false;\r
+ }\r
+ \r
+ @Override\r
+ public Object execute(ExecutionEvent event) throws ExecutionException {\r
+ \r
+ status = WorkbenchUtils.getStatusLine( HandlerUtil.getActiveSite(event) );\r
+ ISelection selection = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService().getSelection();\r
+ \r
+ // If the selection is plain text copy it into system clipboard and be happy\r
+ if(copyText(selection)) return null;\r
+\r
+ formatSelectionToClipboardText(event);\r
+\r
+ final Resource[] rs = ResourceAdaptionUtils.toResources(selection);\r
+ copyResourcesToClipboard(rs, selection);\r
+ return null;\r
+ }\r
+ \r
+ public static String copyResourcesToClipboard(final Resource[] rs, ISelection selection) {\r
+ \r
+ if(rs == null || rs.length == 0) {\r
+ // This support was added for copying of properties (variables)\r
+ final List<Variable> variables = getVariables(selection);\r
+ if(!variables.isEmpty()) {\r
+ final SimanticsClipboardImpl builder = new SimanticsClipboardImpl();\r
+ for(Variable var : variables) {\r
+ builder.addContent(Collections.singleton(ClipboardUtils.createVariable(Simantics.getSession(), var)));\r
+ }\r
+ Simantics.setClipboard(builder);\r
+ setCopyMessage(builder.getContents().size(), "variable");\r
+ return null;\r
+ }\r
+ setCopyMessage(0, "");\r
+ return null;\r
+ }\r
+\r
+ try {\r
+ final SimanticsClipboardImpl builder = new SimanticsClipboardImpl();\r
+ Simantics.getSession().syncRequest(new ReadRequest() {\r
+ @Override\r
+ public void run(ReadGraph graph) throws DatabaseException {\r
+ for (Resource r : rs) {\r
+ CopyHandler handler = graph.adapt(r, CopyHandler.class);\r
+ handler.copyToClipboard(graph, builder);\r
+ }\r
+ }\r
+ });\r
+ Simantics.setClipboard(builder);\r
+ setCopyMessage(builder.getContents().size(), "resource");\r
+ } catch (DatabaseException e) {\r
+ Logger.defaultLogError(e);\r
+ }\r
+\r
+ return null;\r
+ }\r
+\r
+ private static void setCopyMessage(int count, String elementName) {\r
+ if (count > 1)\r
+ setStatus("Copied " + count + " " + elementName + "s to clipboard");\r
+ else if (count == 1)\r
+ setStatus("Copied " + elementName + " to clipboard");\r
+ else\r
+ setStatus("Nothing to copy.");\r
+ }\r
+\r
+ private static void setStatus(String message) {\r
+ if (status != null)\r
+ status.setMessage(message);\r
+ }\r
+\r
+ private boolean formatSelectionToClipboardText(ExecutionEvent event) {\r
+ Shell shell = HandlerUtil.getActiveShell(event);\r
+ Tree tree = shell == null ? null : tryGetExplorer(shell.getDisplay().getFocusControl());\r
+ if (tree == null)\r
+ return false;\r
+\r
+ TreeItem[] selection = tree.getSelection();\r
+ if (selection.length == 0)\r
+ return false;\r
+\r
+ StringBuilder sb = format(selection, new StringBuilder());\r
+ if (sb.length() > 0) {\r
+ setSystemClipboardText(sb.toString());\r
+ return true;\r
+ }\r
+ return false;\r
+ }\r
+\r
+ private static StringBuilder format(TreeItem[] selection, StringBuilder sb) {\r
+ Set<TreeItem> items = new THashSet<TreeItem>(selection.length);\r
+ for (TreeItem item : selection)\r
+ items.add(item);\r
+ for (TreeItem item : selection) {\r
+ int cc = item.getParent().getColumnCount();\r
+ int indent = indentLevel(item, items);\r
+ for (int i = 0; i < indent; ++i)\r
+ sb.append('\t');\r
+ boolean first = true;\r
+ for (int c = 0; c < cc; ++c) {\r
+ String ct = item.getText(c);\r
+ if (!first) {\r
+ sb.append('\t');\r
+ }\r
+ first = false;\r
+ sb.append(ct);\r
+ }\r
+ sb.append('\n');\r
+ }\r
+ return sb;\r
+ }\r
+\r
+ private static int indentLevel(TreeItem item, Set<TreeItem> items) {\r
+ TreeItem p = item.getParentItem();\r
+ for (int i = 1; ; p = p.getParentItem()) {\r
+ if (p == null)\r
+ return 0;\r
+ if (items.contains(p))\r
+ return i;\r
+ }\r
+ }\r
+\r
+ private static Tree tryGetExplorer(Control control) {\r
+ return SWTUtils.tryGetObject(control, new ControlFilter<Tree>() {\r
+ @Override\r
+ public Tree accept(Control control) {\r
+ if (!control.isDisposed()\r
+ && control instanceof Tree\r
+ && control.getData(GraphExplorer.KEY_GRAPH_EXPLORER) != null)\r
+ return (Tree) control;\r
+ return null;\r
+ }\r
+ });\r
+ }\r
+\r
+ private static void setSystemClipboardText(String text) {\r
+ Clipboard clipboard = new Clipboard(Display.getCurrent());\r
+ clipboard.setContents(new Object[]{ text }, new Transfer[] { TextTransfer.getInstance() });\r
+ clipboard.dispose();\r
+ }\r
+\r
+}\r
Code Review / simantics / platform.git / blobdiff