-/*******************************************************************************\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.g2d.participant;\r
-\r
-import java.awt.geom.Point2D;\r
-import java.awt.geom.Rectangle2D;\r
-import java.util.Timer;\r
-import java.util.TimerTask;\r
-\r
-import org.simantics.g2d.canvas.Hints;\r
-import org.simantics.g2d.canvas.ICanvasContext;\r
-import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;\r
-import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;\r
-import org.simantics.g2d.canvas.impl.HintReflection.HintListener;\r
-import org.simantics.utils.datastructures.disposable.DisposeState;\r
-import org.simantics.utils.datastructures.hints.IHintObservable;\r
-import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
-import org.simantics.utils.threads.IThreadWorkQueue;\r
-\r
-/**\r
- * Restores orientation of the canvas back to normal (north is up)\r
- * \r
- * \r
- * @author Toni Kalajainen\r
- */\r
-public class OrientationRestorer extends AbstractCanvasParticipant {\r
-\r
- @Dependency\r
- TransformUtil util;\r
- @Dependency\r
- CanvasGrab grab;\r
- @Dependency\r
- CanvasBoundsParticipant bounds;\r
-\r
- long lastTrigger;\r
- Point2D centerPoint = new Point2D.Double();\r
-\r
- transient Timer timer = new Timer("Rotate restore");\r
- transient boolean checkRotatePending = false;\r
-\r
- TimerTask task = new TimerTask() {\r
- @Override\r
- public void run() {\r
- ICanvasContext ctx = getContext();\r
- if (ctx.getDisposeState() != DisposeState.Alive)\r
- return;\r
- IThreadWorkQueue thread = ctx.getThreadAccess();\r
- if (thread == null)\r
- return;\r
- thread.asyncExec(new Runnable() {\r
- @Override\r
- public void run() {\r
- if (checkRotatePending)\r
- return;\r
- checkRotatePending = true;\r
- timerEvent();\r
- }\r
- });\r
- }\r
- };\r
-\r
- @Override\r
- public void removedFromContext(ICanvasContext ctx) {\r
- timer.cancel();\r
- super.removedFromContext(ctx);\r
- }\r
-\r
- @Override\r
- public void addedToContext(ICanvasContext ctx) {\r
- super.addedToContext(ctx);\r
- long delay = 1000 / 25;\r
- lastTrigger = System.currentTimeMillis();\r
- timer.scheduleAtFixedRate(task, delay, delay);\r
- }\r
-\r
- @HintListener(Class = Hints.class, Field = "KEY_CANVAS_BOUNDS")\r
- public void selectionChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {\r
- Rectangle2D cb = (Rectangle2D) newValue;\r
- this.centerPoint.setLocation(cb.getCenterX(), cb.getCenterY());\r
- }\r
-\r
- void timerEvent() {\r
- ICanvasContext ctx = getContext();\r
- if (ctx == null)\r
- return;\r
- if (ctx.getDisposeState() != DisposeState.Alive)\r
- return;\r
- long cur = System.currentTimeMillis();\r
- long delta = cur - lastTrigger;\r
- lastTrigger = cur;\r
- checkRotatePending = false;\r
-\r
- Point2D centerPoint = new Point2D.Double();\r
- int grabCount = grab.grabInfo.size();\r
- if (grabCount == 0) {\r
- centerPoint = this.centerPoint;\r
- } else if (grabCount == 1) {\r
- centerPoint = grab.grabInfo.values().iterator().next().anchorPos;\r
- } else {\r
- angVel = 0.0;\r
- return;\r
- }\r
-\r
- // turn the canvas a bit\r
- double theta = util.getRotate();\r
- if (theta == 0.0)\r
- return;\r
-// if (Math.abs(theta) < 0.0001) {\r
-// angVel = 0.0;\r
-// return;\r
-// }\r
- if (Math.abs(theta) < 0.001) {\r
- util.restoreOrientation(centerPoint);\r
- angVel = 0.0;\r
- return;\r
- }\r
-\r
- double momentum = theta * 100;\r
- double dt = ((double) delta) / 1000;\r
- if (dt > 0.150)\r
- dt = 0.150;\r
- angVel += momentum * dt;\r
- util.rotate(centerPoint, -angVel * dt);\r
- angVel *= 0.5;\r
- }\r
-\r
- double angVel = 0.0;\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.g2d.participant;
+
+import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
+import java.util.Timer;
+import java.util.TimerTask;
+
+import org.simantics.g2d.canvas.Hints;
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
+import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;
+import org.simantics.g2d.canvas.impl.HintReflection.HintListener;
+import org.simantics.utils.datastructures.disposable.DisposeState;
+import org.simantics.utils.datastructures.hints.IHintObservable;
+import org.simantics.utils.datastructures.hints.IHintContext.Key;
+import org.simantics.utils.threads.IThreadWorkQueue;
+
+/**
+ * Restores orientation of the canvas back to normal (north is up)
+ *
+ *
+ * @author Toni Kalajainen
+ */
+public class OrientationRestorer extends AbstractCanvasParticipant {
+
+ @Dependency
+ TransformUtil util;
+ @Dependency
+ CanvasGrab grab;
+ @Dependency
+ CanvasBoundsParticipant bounds;
+
+ long lastTrigger;
+ Point2D centerPoint = new Point2D.Double();
+
+ transient Timer timer = new Timer("Rotate restore");
+ transient boolean checkRotatePending = false;
+
+ TimerTask task = new TimerTask() {
+ @Override
+ public void run() {
+ ICanvasContext ctx = getContext();
+ if (ctx.getDisposeState() != DisposeState.Alive)
+ return;
+ IThreadWorkQueue thread = ctx.getThreadAccess();
+ if (thread == null)
+ return;
+ thread.asyncExec(new Runnable() {
+ @Override
+ public void run() {
+ if (checkRotatePending)
+ return;
+ checkRotatePending = true;
+ timerEvent();
+ }
+ });
+ }
+ };
+
+ @Override
+ public void removedFromContext(ICanvasContext ctx) {
+ timer.cancel();
+ super.removedFromContext(ctx);
+ }
+
+ @Override
+ public void addedToContext(ICanvasContext ctx) {
+ super.addedToContext(ctx);
+ long delay = 1000 / 25;
+ lastTrigger = System.currentTimeMillis();
+ timer.scheduleAtFixedRate(task, delay, delay);
+ }
+
+ @HintListener(Class = Hints.class, Field = "KEY_CANVAS_BOUNDS")
+ public void selectionChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {
+ Rectangle2D cb = (Rectangle2D) newValue;
+ this.centerPoint.setLocation(cb.getCenterX(), cb.getCenterY());
+ }
+
+ void timerEvent() {
+ ICanvasContext ctx = getContext();
+ if (ctx == null)
+ return;
+ if (ctx.getDisposeState() != DisposeState.Alive)
+ return;
+ long cur = System.currentTimeMillis();
+ long delta = cur - lastTrigger;
+ lastTrigger = cur;
+ checkRotatePending = false;
+
+ Point2D centerPoint = new Point2D.Double();
+ int grabCount = grab.grabInfo.size();
+ if (grabCount == 0) {
+ centerPoint = this.centerPoint;
+ } else if (grabCount == 1) {
+ centerPoint = grab.grabInfo.values().iterator().next().anchorPos;
+ } else {
+ angVel = 0.0;
+ return;
+ }
+
+ // turn the canvas a bit
+ double theta = util.getRotate();
+ if (theta == 0.0)
+ return;
+// if (Math.abs(theta) < 0.0001) {
+// angVel = 0.0;
+// return;
+// }
+ if (Math.abs(theta) < 0.001) {
+ util.restoreOrientation(centerPoint);
+ angVel = 0.0;
+ return;
+ }
+
+ double momentum = theta * 100;
+ double dt = ((double) delta) / 1000;
+ if (dt > 0.150)
+ dt = 0.150;
+ angVel += momentum * dt;
+ util.rotate(centerPoint, -angVel * dt);
+ angVel *= 0.5;
+ }
+
+ double angVel = 0.0;
+
+}
Code Review / simantics / platform.git / blobdiff