-/*******************************************************************************\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.AffineTransform;\r
-import java.awt.geom.Point2D;\r
-\r
-import org.simantics.g2d.canvas.Hints;\r
-import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;\r
-import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;\r
-import org.simantics.g2d.participant.CanvasGrab.PointerInfo;\r
-import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent.MouseButtonPressedEvent;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent.MouseButtonReleasedEvent;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent.MouseExitEvent;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent.MouseMovedEvent;\r
-\r
-/**\r
- * @author Toni Kalajainen\r
- */\r
-public class MultitouchPanZoomRotateInteractor extends AbstractCanvasParticipant {\r
-\r
- @Dependency TransformUtil util;\r
- @Dependency CanvasGrab grab;\r
- \r
- // Pointer grabbing button\r
- public static final int BUTTON_ID = 1;\r
- \r
- @EventHandler(priority = Integer.MAX_VALUE - 2000)\r
- public boolean handleEvent(MouseButtonPressedEvent e) {\r
- // ignore normal mouse \r
- if (getHint(Hints.KEY_TOOL) != Hints.PANTOOL) return false;\r
- if (e.mouseId==0) return false;\r
- if (e.button != BUTTON_ID) return false;\r
- assertDependencies();\r
- //System.out.println(e.mouseId+" down");\r
- Point2D controlPos = e.controlPosition;\r
- Point2D canvasPos = util.controlToCanvas(controlPos, null);\r
- grab.grabCanvas(e.mouseId, canvasPos); \r
- return false;\r
- }\r
- \r
- @EventHandler(priority = Integer.MAX_VALUE - 2000)\r
- public boolean handleEvent(MouseButtonReleasedEvent e) {\r
- // ignore normal mouse\r
- if (getHint(Hints.KEY_TOOL) != Hints.PANTOOL) return false;\r
- if (e.mouseId==0) return false;\r
- if (e.button != BUTTON_ID) return false;\r
- assertDependencies();\r
- //System.out.println(e.mouseId+" up");\r
- grab.grabInfo.remove(e.mouseId);\r
- \r
- return false;\r
- }\r
- \r
- @EventHandler(priority = Integer.MAX_VALUE - 2000)\r
- public boolean handleEvent(MouseExitEvent e) {\r
- // ignore normal mouse\r
- if (getHint(Hints.KEY_TOOL) != Hints.PANTOOL) return false;\r
- if (e.mouseId==0) return false;\r
- assertDependencies();\r
- //System.out.println(e.mouseId+" exit");\r
- grab.grabInfo.remove(e.mouseId); \r
- return false;\r
- } \r
- \r
- @EventHandler(priority = Integer.MAX_VALUE - 2000)\r
- public boolean handleEvent(MouseMovedEvent e) { \r
- if (e.context instanceof MouseUtil) return false;\r
- if (getHint(Hints.KEY_TOOL) != Hints.PANTOOL) return false;\r
- assertDependencies();\r
- PointerInfo ai = grab.grabInfo.get(e.mouseId);\r
- if (ai==null) return false;\r
- if (grab.grabInfo.size() == 1) {\r
- PointerInfo pi = grab.grabInfo.values().iterator().next(); \r
-\r
- Point2D pt = util.controlToCanvas(e.controlPosition, null);\r
- \r
- double a1_x = pi.anchorPos.getX();\r
- double a1_y = pi.anchorPos.getY();\r
- double b1_x = pt.getX();\r
- double b1_y = pt.getY();\r
- \r
- AffineTransform gat = util.getTransform();\r
- gat.translate(b1_x-a1_x, b1_y-a1_y);\r
- util.setTransform(gat);\r
- \r
- return true; // TODO Do panning;\r
- } \r
- if (grab.grabInfo.size()!=2) return false;\r
- \r
- double EPSILON = 3;\r
- \r
- PointerInfo[] pi = grab.grabInfo.values().toArray(new PointerInfo[2]);\r
- \r
- for (PointerInfo p : pi)\r
- if (p.mouseId == e.mouseId)\r
- p.currentPos = util.controlToCanvas(e.controlPosition, null);\r
-\r
- double a1_x = pi[0].anchorPos.getX();\r
- double a1_y = pi[0].anchorPos.getY();\r
- double b1_x = pi[0].currentPos.getX();\r
- double b1_y = pi[0].currentPos.getY();\r
- \r
- double a2_x = pi[1].anchorPos.getX();\r
- double a2_y = pi[1].anchorPos.getY();\r
- double b2_x = pi[1].currentPos.getX();\r
- double b2_y = pi[1].currentPos.getY(); \r
-\r
- for (PointerInfo p : pi)\r
- if (p.mouseId != e.mouseId)\r
- p.currentPos = p.anchorPos;\r
-\r
- double da_x = a1_x - a2_x;\r
- double da_y = a1_y - a2_y;\r
- double da_lensq = da_x*da_x + da_y*da_y;\r
- if(da_lensq < EPSILON) {\r
- System.err.println("a1 ja a2 ovat liian lähellä toisiaan");\r
- return false;\r
- }\r
-\r
- double db_x = b1_x - b2_x;\r
- double db_y = b1_y - b2_y;\r
- \r
- double s_x = (db_x * da_x + db_y * da_y) / da_lensq;\r
- double s_y = (-db_x * da_y + db_y * da_x) / da_lensq;\r
- \r
- double t_x = b1_x - s_x * a1_x + s_y * a1_y;\r
- double t_y = b1_y - s_x * a1_y - s_y * a1_x;\r
- \r
- double mat[] = new double[] {s_x, s_y, -s_y, s_x, t_x, t_y};\r
- AffineTransform at = new AffineTransform(mat); \r
- setDirty();\r
- \r
- AffineTransform gat = util.getTransform();\r
- gat.concatenate(at);\r
- util.setTransform(gat);\r
- \r
- return true;\r
- }\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.g2d.participant;
+
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Point2D;
+
+import org.simantics.g2d.canvas.Hints;
+import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
+import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;
+import org.simantics.g2d.participant.CanvasGrab.PointerInfo;
+import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseButtonPressedEvent;
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseButtonReleasedEvent;
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseExitEvent;
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseMovedEvent;
+
+/**
+ * @author Toni Kalajainen
+ */
+public class MultitouchPanZoomRotateInteractor extends AbstractCanvasParticipant {
+
+ @Dependency TransformUtil util;
+ @Dependency CanvasGrab grab;
+
+ // Pointer grabbing button
+ public static final int BUTTON_ID = 1;
+
+ @EventHandler(priority = Integer.MAX_VALUE - 2000)
+ public boolean handleEvent(MouseButtonPressedEvent e) {
+ // ignore normal mouse
+ if (getHint(Hints.KEY_TOOL) != Hints.PANTOOL) return false;
+ if (e.mouseId==0) return false;
+ if (e.button != BUTTON_ID) return false;
+ assertDependencies();
+ //System.out.println(e.mouseId+" down");
+ Point2D controlPos = e.controlPosition;
+ Point2D canvasPos = util.controlToCanvas(controlPos, null);
+ grab.grabCanvas(e.mouseId, canvasPos);
+ return false;
+ }
+
+ @EventHandler(priority = Integer.MAX_VALUE - 2000)
+ public boolean handleEvent(MouseButtonReleasedEvent e) {
+ // ignore normal mouse
+ if (getHint(Hints.KEY_TOOL) != Hints.PANTOOL) return false;
+ if (e.mouseId==0) return false;
+ if (e.button != BUTTON_ID) return false;
+ assertDependencies();
+ //System.out.println(e.mouseId+" up");
+ grab.grabInfo.remove(e.mouseId);
+
+ return false;
+ }
+
+ @EventHandler(priority = Integer.MAX_VALUE - 2000)
+ public boolean handleEvent(MouseExitEvent e) {
+ // ignore normal mouse
+ if (getHint(Hints.KEY_TOOL) != Hints.PANTOOL) return false;
+ if (e.mouseId==0) return false;
+ assertDependencies();
+ //System.out.println(e.mouseId+" exit");
+ grab.grabInfo.remove(e.mouseId);
+ return false;
+ }
+
+ @EventHandler(priority = Integer.MAX_VALUE - 2000)
+ public boolean handleEvent(MouseMovedEvent e) {
+ if (e.context instanceof MouseUtil) return false;
+ if (getHint(Hints.KEY_TOOL) != Hints.PANTOOL) return false;
+ assertDependencies();
+ PointerInfo ai = grab.grabInfo.get(e.mouseId);
+ if (ai==null) return false;
+ if (grab.grabInfo.size() == 1) {
+ PointerInfo pi = grab.grabInfo.values().iterator().next();
+
+ Point2D pt = util.controlToCanvas(e.controlPosition, null);
+
+ double a1_x = pi.anchorPos.getX();
+ double a1_y = pi.anchorPos.getY();
+ double b1_x = pt.getX();
+ double b1_y = pt.getY();
+
+ AffineTransform gat = util.getTransform();
+ gat.translate(b1_x-a1_x, b1_y-a1_y);
+ util.setTransform(gat);
+
+ return true; // TODO Do panning;
+ }
+ if (grab.grabInfo.size()!=2) return false;
+
+ double EPSILON = 3;
+
+ PointerInfo[] pi = grab.grabInfo.values().toArray(new PointerInfo[2]);
+
+ for (PointerInfo p : pi)
+ if (p.mouseId == e.mouseId)
+ p.currentPos = util.controlToCanvas(e.controlPosition, null);
+
+ double a1_x = pi[0].anchorPos.getX();
+ double a1_y = pi[0].anchorPos.getY();
+ double b1_x = pi[0].currentPos.getX();
+ double b1_y = pi[0].currentPos.getY();
+
+ double a2_x = pi[1].anchorPos.getX();
+ double a2_y = pi[1].anchorPos.getY();
+ double b2_x = pi[1].currentPos.getX();
+ double b2_y = pi[1].currentPos.getY();
+
+ for (PointerInfo p : pi)
+ if (p.mouseId != e.mouseId)
+ p.currentPos = p.anchorPos;
+
+ double da_x = a1_x - a2_x;
+ double da_y = a1_y - a2_y;
+ double da_lensq = da_x*da_x + da_y*da_y;
+ if(da_lensq < EPSILON) {
+ System.err.println("a1 ja a2 ovat liian lähellä toisiaan");
+ return false;
+ }
+
+ double db_x = b1_x - b2_x;
+ double db_y = b1_y - b2_y;
+
+ double s_x = (db_x * da_x + db_y * da_y) / da_lensq;
+ double s_y = (-db_x * da_y + db_y * da_x) / da_lensq;
+
+ double t_x = b1_x - s_x * a1_x + s_y * a1_y;
+ double t_y = b1_y - s_x * a1_y - s_y * a1_x;
+
+ double mat[] = new double[] {s_x, s_y, -s_y, s_x, t_x, t_y};
+ AffineTransform at = new AffineTransform(mat);
+ setDirty();
+
+ AffineTransform gat = util.getTransform();
+ gat.concatenate(at);
+ util.setTransform(gat);
+
+ return true;
+ }
+
+
+}
Code Review / simantics / platform.git / blobdiff