-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\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.diagram.handler;\r
-\r
-import java.awt.geom.Point2D;\r
-import java.lang.ref.WeakReference;\r
-import java.util.Collections;\r
-import java.util.Set;\r
-\r
-import org.simantics.db.Resource;\r
-import org.simantics.g2d.canvas.ICanvasContext;\r
-import org.simantics.g2d.element.IElement;\r
-import org.simantics.utils.strings.EString;\r
-\r
-/**\r
- * @author Tuukka Lehtonen\r
- */\r
-public class DiagramSelection {\r
-\r
- public static final DiagramSelection EMPTY = new DiagramSelection((Resource) null);\r
-\r
- // Reference may be null\r
- private final WeakReference<ICanvasContext> sourceCanvas;\r
- private final Resource source;\r
-\r
- /**\r
- * May be empty or at least invalid after the source canvas no longer\r
- * exists. Should not be used for anything besides visualisation.\r
- */\r
- private transient final Set<IElement> elements;\r
-\r
- private final ElementObjectAssortment assortment;\r
- private final boolean cut;\r
- private final Point2D copyPos;\r
-\r
- private DiagramSelection(Resource source) {\r
- this.sourceCanvas = null;\r
- this.source = source;\r
- this.elements = Collections.emptySet();\r
- this.assortment = ElementObjectAssortment.fromElements(elements);\r
- this.cut = false;\r
- this.copyPos = new Point2D.Double();\r
- }\r
-\r
- public DiagramSelection(ICanvasContext sourceCanvas, Resource source, Set<IElement> elements, boolean cut, Point2D copyPos) {\r
- assert source != null;\r
- assert elements != null;\r
-\r
- this.sourceCanvas = new WeakReference<ICanvasContext>(sourceCanvas);\r
- this.source = source;\r
- this.elements = Collections.unmodifiableSet(elements);\r
- this.assortment = ElementObjectAssortment.fromElements(elements);\r
- this.cut = cut;\r
- this.copyPos = copyPos;\r
- }\r
-\r
- /**\r
- * @return <code>null</code> if the source canvas has already been disposed.\r
- */\r
- public ICanvasContext getSourceCanvas() {\r
- ICanvasContext ctx = sourceCanvas == null ? null : sourceCanvas.get();\r
- return ctx == null ? null : ctx.isDisposed() ? null : ctx;\r
- }\r
-\r
- public boolean isFromCanvasContext(ICanvasContext ctx) {\r
- ICanvasContext srcCtx = getSourceCanvas();\r
- return ctx != null && ctx == srcCtx;\r
- }\r
-\r
- public Resource getSourceDiagram() {\r
- return source;\r
- }\r
-\r
- public boolean isCut() {\r
- return cut;\r
- }\r
-\r
- public Point2D getCopyPos() {\r
- return copyPos;\r
- }\r
-\r
- public Set<IElement> getOriginalElements() {\r
- return elements;\r
- }\r
-\r
- public ElementObjectAssortment getAssortment() {\r
- return assortment;\r
- }\r
-\r
- public boolean isEmpty() {\r
- return getAssortment().isEmpty();\r
- }\r
-\r
- @Override\r
- public String toString() {\r
- StringBuilder sb = new StringBuilder();\r
- sb.append("Diagram selection of ");\r
- sb.append(elements.size());\r
- sb.append(" element(s) ");\r
- if (cut)\r
- sb.append("cut");\r
- else\r
- sb.append("copied");\r
- sb.append(" from ");\r
- sb.append(source);\r
- sb.append(" with reference position ");\r
- sb.append(copyPos);\r
- if (elements != null && !elements.isEmpty()) {\r
- sb.append(":\n");\r
- String elems = EString.implode(elements, "\n");\r
- if (elems != null)\r
- sb.append(EString.addPrefix(elems, "\t"));\r
- }\r
- if (assortment != null && !assortment.isEmpty()) {\r
- sb.append(assortment.toString());\r
- }\r
- return sb.toString();\r
- }\r
-}\r
-\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.diagram.handler;
+
+import java.awt.geom.Point2D;
+import java.lang.ref.WeakReference;
+import java.util.Collections;
+import java.util.Set;
+
+import org.simantics.db.Resource;
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.element.IElement;
+import org.simantics.utils.strings.EString;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class DiagramSelection {
+
+ public static final DiagramSelection EMPTY = new DiagramSelection((Resource) null);
+
+ // Reference may be null
+ private final WeakReference<ICanvasContext> sourceCanvas;
+ private final Resource source;
+
+ /**
+ * May be empty or at least invalid after the source canvas no longer
+ * exists. Should not be used for anything besides visualisation.
+ */
+ private transient final Set<IElement> elements;
+
+ private final ElementObjectAssortment assortment;
+ private final boolean cut;
+ private final Point2D copyPos;
+
+ private DiagramSelection(Resource source) {
+ this.sourceCanvas = null;
+ this.source = source;
+ this.elements = Collections.emptySet();
+ this.assortment = ElementObjectAssortment.fromElements(elements);
+ this.cut = false;
+ this.copyPos = new Point2D.Double();
+ }
+
+ public DiagramSelection(ICanvasContext sourceCanvas, Resource source, Set<IElement> elements, boolean cut, Point2D copyPos) {
+ assert source != null;
+ assert elements != null;
+
+ this.sourceCanvas = new WeakReference<ICanvasContext>(sourceCanvas);
+ this.source = source;
+ this.elements = Collections.unmodifiableSet(elements);
+ this.assortment = ElementObjectAssortment.fromElements(elements);
+ this.cut = cut;
+ this.copyPos = copyPos;
+ }
+
+ /**
+ * @return <code>null</code> if the source canvas has already been disposed.
+ */
+ public ICanvasContext getSourceCanvas() {
+ ICanvasContext ctx = sourceCanvas == null ? null : sourceCanvas.get();
+ return ctx == null ? null : ctx.isDisposed() ? null : ctx;
+ }
+
+ public boolean isFromCanvasContext(ICanvasContext ctx) {
+ ICanvasContext srcCtx = getSourceCanvas();
+ return ctx != null && ctx == srcCtx;
+ }
+
+ public Resource getSourceDiagram() {
+ return source;
+ }
+
+ public boolean isCut() {
+ return cut;
+ }
+
+ public Point2D getCopyPos() {
+ return copyPos;
+ }
+
+ public Set<IElement> getOriginalElements() {
+ return elements;
+ }
+
+ public ElementObjectAssortment getAssortment() {
+ return assortment;
+ }
+
+ public boolean isEmpty() {
+ return getAssortment().isEmpty();
+ }
+
+ @Override
+ public String toString() {
+ StringBuilder sb = new StringBuilder();
+ sb.append("Diagram selection of ");
+ sb.append(elements.size());
+ sb.append(" element(s) ");
+ if (cut)
+ sb.append("cut");
+ else
+ sb.append("copied");
+ sb.append(" from ");
+ sb.append(source);
+ sb.append(" with reference position ");
+ sb.append(copyPos);
+ if (elements != null && !elements.isEmpty()) {
+ sb.append(":\n");
+ String elems = EString.implode(elements, "\n");
+ if (elems != null)
+ sb.append(EString.addPrefix(elems, "\t"));
+ }
+ if (assortment != null && !assortment.isEmpty()) {
+ sb.append(assortment.toString());
+ }
+ return sb.toString();
+ }
+}
+
Code Review / simantics / platform.git / blobdiff