org.simantics.proconf.g3d/src/org/simantics/proconf/g3d/actions/CameraAction.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.\r
   3  * All rights reserved. This program and the accompanying materials\r
   4  * are made available under the terms of the Eclipse Public License v1.0\r
   5  * which accompanies this distribution, and is available at\r
   6  * http://www.eclipse.org/legal/epl-v10.html\r
   7  *\r
   8  * Contributors:\r
   9  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  10  *******************************************************************************/\r
  11 package org.simantics.proconf.g3d.actions;\r
  12 \r
  13 import java.awt.event.KeyEvent;\r
  14 import java.awt.event.MouseEvent;\r
  15 import java.util.List;\r
  16 \r
  17 import javax.vecmath.Vector3d;\r
  18 \r
  19 import org.simantics.db.Graph;\r
  20 import org.simantics.db.Resource;\r
  21 import org.simantics.proconf.g3d.base.JmeRenderingComponent;\r
  22 import org.simantics.proconf.g3d.base.MathTools;\r
  23 import org.simantics.proconf.g3d.base.ThreeDimensionalEditorBase;\r
  24 import org.simantics.proconf.g3d.common.OrbitalCamera;\r
  25 \r
  26 \r
  27 \r
  28 public class CameraAction extends InteractiveAction{\r
  29         \r
  30         private JmeRenderingComponent component;\r
  31         private OrbitalCamera camera;\r
  32         \r
  33     public CameraAction(ThreeDimensionalEditorBase parent) {\r
  34         super(parent);\r
  35         component = parent.getRenderingComponent();\r
  36         camera = parent.getCamera();\r
  37     }\r
  38     \r
  39     @Override\r
  40     public void activate() {\r
  41 \r
  42     }\r
  43 \r
  44     @Override\r
  45     public void deactivate() {\r
  46 \r
  47     }\r
  48     \r
  49     @Override\r
  50   public boolean usable(Graph graph,List<Resource> resources) {\r
  51       return true;\r
  52   }\r
  53 \r
  54     Vector3d prevIntersectPoint = new Vector3d();\r
  55     @Override\r
  56     public void update() {\r
  57         double scale = 1.0;\r
  58         if (input.keyDown(KeyEvent.VK_CONTROL))\r
  59             scale = -1.0;\r
  60         if (input.keyPressed(KeyEvent.VK_NUMPAD5)) {\r
  61             if (component.getProjectionPolicy() == JmeRenderingComponent.PERSPECTIVE_PROJECTION)\r
  62                 component.setProjectionPolicy(JmeRenderingComponent.PARALLEL_PROJECTION);\r
  63             else\r
  64                 component.setProjectionPolicy(JmeRenderingComponent.PERSPECTIVE_PROJECTION);\r
  65             parent.setViewChanged(true);\r
  66         }\r
  67         if (input.keyPressed(KeyEvent.VK_NUMPAD7)) {\r
  68             camera.setCameraPosRelativeToTarget(new Vector3d(camera.getDistanceToTarget() * scale, 0, 0));\r
  69             parent.setViewChanged(true);\r
  70         }\r
  71         if (input.keyPressed(KeyEvent.VK_NUMPAD1)) {\r
  72             camera.setCameraPosRelativeToTarget(new Vector3d(0, 0, camera.getDistanceToTarget() * scale));\r
  73             parent.setViewChanged(true);\r
  74         }\r
  75         if (input.keyPressed(KeyEvent.VK_NUMPAD9)) {\r
  76             camera.setCameraPosRelativeToTarget(new Vector3d(0, camera.getDistanceToTarget() * scale, 0));\r
  77             parent.setViewChanged(true);\r
  78         }\r
  79 \r
  80         if (input.mousePressed() && ((input.pressModifiers() & MouseEvent.BUTTON1_MASK) > 0)) {\r
  81             Vector3d o = new Vector3d();\r
  82             Vector3d d = new Vector3d();\r
  83             parent.createPickRay(o, d);\r
  84             Vector3d point = new Vector3d(camera.getTarget());\r
  85             Vector3d normal = camera.getUnNormalizedHeading();\r
  86             normal.normalize();\r
  87             MathTools.intersectStraightPlane(o, d, point, normal, prevIntersectPoint);\r
  88         }\r
  89         if (!input.mouseDragged())\r
  90             return;\r
  91         parent.setViewChanged(true);\r
  92         Vector3d msTmp = new Vector3d();\r
  93         msTmp.x = (input.prevMouseX() - input.mouseX()) / 100f;\r
  94         msTmp.y = (input.prevMouseY() - input.mouseY()) / 100f;\r
  95 \r
  96         if ((input.dragModifiers() & MouseEvent.BUTTON1_MASK) > 0) {\r
  97             if ((input.dragModifiers() & MouseEvent.CTRL_MASK) > 0) {\r
  98                 Vector3d o = new Vector3d();\r
  99                 Vector3d d = new Vector3d();\r
 100                 parent.createPickRay(o, d);\r
 101                 Vector3d point = new Vector3d(camera.getTarget());\r
 102                 Vector3d normal = camera.getUnNormalizedHeading();\r
 103                 normal.normalize();\r
 104                 Vector3d intersectPoint = new Vector3d();\r
 105                 if (MathTools.intersectStraightPlane(o, d, point, normal, intersectPoint)) {\r
 106                     Vector3d delta = new Vector3d(intersectPoint);\r
 107                     delta.sub(prevIntersectPoint);\r
 108                     prevIntersectPoint = intersectPoint;\r
 109                     delta.negate();\r
 110                     camera.translate(delta);\r
 111                     prevIntersectPoint.add(delta);\r
 112                 } else {\r
 113                     camera.moveRight((float) msTmp.x);\r
 114                     camera.moveUp(-(float) msTmp.y);\r
 115                 }\r
 116             } else {\r
 117                 camera.rotateRight((float) msTmp.x);\r
 118                 camera.rotateUp((float) msTmp.y);\r
 119             }\r
 120         } else if ((input.dragModifiers() & MouseEvent.BUTTON2_MASK) > 0) {\r
 121             // System.out.println("zoom");\r
 122             if (component.getProjectionPolicy() == JmeRenderingComponent.PERSPECTIVE_PROJECTION) {\r
 123                 camera.moveScaledToTarget((float) msTmp.y * 0.5f);\r
 124             } else {\r
 125                 component.setScreenScale(component.getScreenScale() - (float) msTmp.y * 0.5f * component.getScreenScale());\r
 126             }\r
 127         }\r
 128 //        } else {\r
 129 //            System.out.println("cameraAction!");\r
 130 //            System.out.println(input);\r
 131 //        } \r
 132        \r
 133     }\r
 134 }\r