bundles/org.simantics.scenegraph/src/org/simantics/scenegraph/g2d/events/adapter/AWTRemoteEventAdapter.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.scenegraph.g2d.events.adapter;
  13
  14 import java.awt.AWTEvent;
  15 import java.awt.event.AWTEventListener;
  16 import java.awt.event.InputEvent;
  17 import java.awt.event.KeyEvent;
  18 import java.awt.event.KeyListener;
  19 import java.awt.event.MouseEvent;
  20 import java.awt.event.MouseListener;
  21 import java.awt.event.MouseMotionListener;
  22 import java.awt.event.MouseWheelEvent;
  23 import java.awt.event.MouseWheelListener;
  24 import java.awt.geom.Point2D;
  25 import org.simantics.scenegraph.g2d.events.IEventHandler;
  26 import org.simantics.scenegraph.g2d.events.IEventQueue;
  27 import org.simantics.scenegraph.g2d.events.KeyEvent.KeyPressedEvent;
  28 import org.simantics.scenegraph.g2d.events.KeyEvent.KeyReleasedEvent;
  29 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseButtonPressedEvent;
  30 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseButtonReleasedEvent;
  31 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseDoubleClickedEvent;
  32 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseEnterEvent;
  33 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseExitEvent;
  34 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseMovedEvent;
  35 import org.simantics.scenegraph.g2d.events.MouseEvent.MouseWheelMovedEvent;
  36 import org.simantics.scenegraph.g2d.events.adapter.AbstractEventAdapter;
  37
  38
  39 /**
  40  * Listens to objectinput stream and reads AWT events
  41  * Adapts AWT events into G2D events.
  42  *
  43  * Sends adapted events to IEventHandler
  44  */
  45 public class AWTRemoteEventAdapter extends AbstractEventAdapter implements AWTEventListener, MouseListener, MouseMotionListener, MouseWheelListener, KeyListener {
  46
  47     /** Mouse id of the default mouse */
  48     public static final int MOUSE_ID     = 0;
  49
  50     private long[]          pressTime    = new long[5];
  51     int                     buttonStatus = 0;
  52
  53     /**
  54      * create new adapter
  55      * @param input the input stream where the events are read from
  56      * @param sender the sender field in the events
  57      * @param delegator the target of the adapted events
  58      */
  59     public AWTRemoteEventAdapter(Object sender, IEventHandler delegator) {
  60         super(sender, delegator);
  61     }
  62
  63     /**
  64      * create new adapter
  65      * @param sender the sender field in the events
  66      * @param queue
  67      */
  68     public AWTRemoteEventAdapter(Object sender, IEventQueue queue) {
  69         super(sender, queue);
  70     }
  71
  72     private Point2D getControlPosition(MouseEvent e)
  73     {
  74         return new Point2D.Double(e.getX(), e.getY());
  75     }
  76
  77     private Point2D getScreenPosition(MouseEvent e)
  78     {
  79         java.awt.Point p = e.getLocationOnScreen();
  80         return new Point2D.Double(p.x, p.y);
  81     }
  82
  83     private int getMouseButton(MouseEvent e)
  84     {
  85         int awtMouseButton = e.getButton();
  86         if (awtMouseButton == MouseEvent.BUTTON1)
  87             return org.simantics.scenegraph.g2d.events.MouseEvent.LEFT_BUTTON;
  88         if (awtMouseButton == MouseEvent.BUTTON2)
  89             return org.simantics.scenegraph.g2d.events.MouseEvent.MIDDLE_BUTTON;
  90         if (awtMouseButton == MouseEvent.BUTTON3)
  91             return org.simantics.scenegraph.g2d.events.MouseEvent.RIGHT_BUTTON;
  92         return awtMouseButton;
  93     }
  94
  95     private static int getStateMask(MouseEvent e) {
  96         int modifiers = e.getModifiersEx();
  97         int stateMask = 0;
  98         if((modifiers & InputEvent.CTRL_DOWN_MASK) != 0)
  99             stateMask |= org.simantics.scenegraph.g2d.events.MouseEvent.CTRL_MASK;
 100         if((modifiers & InputEvent.ALT_DOWN_MASK) != 0)
 101             stateMask |= org.simantics.scenegraph.g2d.events.MouseEvent.ALT_MASK;
 102         if((modifiers & InputEvent.ALT_GRAPH_DOWN_MASK) != 0)
 103             stateMask |= org.simantics.scenegraph.g2d.events.MouseEvent.ALT_GRAPH_MASK;
 104         if((modifiers & InputEvent.SHIFT_DOWN_MASK) != 0)
 105             stateMask |= org.simantics.scenegraph.g2d.events.MouseEvent.SHIFT_MASK;
 106         return stateMask;
 107     }
 108
 109
 110     public void mouseEntered(MouseEvent e) {
 111         buttonStatus = 0;
 112         MouseEnterEvent me = new MouseEnterEvent(sender, e.getWhen(), MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e));
 113         handleEvent(me);
 114     }
 115
 116
 117     public void mouseExited(MouseEvent e) {
 118         MouseExitEvent me = new MouseExitEvent(sender, e.getWhen(), MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e));
 119         handleEvent(me);
 120     }
 121
 122
 123     public void mousePressed(MouseEvent e) {
 124         //System.out.println("AWT mouse pressed: " + e);
 125         int mouseButton = getMouseButton(e);
 126         if (mouseButton<=pressTime.length) pressTime[mouseButton-1] = e.getWhen();
 127         buttonStatus |= 1 << (mouseButton-1);
 128
 129         handleEvent(new MouseButtonPressedEvent(sender, e.getWhen(), MOUSE_ID,
 130                 buttonStatus, getStateMask(e), mouseButton, getControlPosition(e), getScreenPosition(e)));
 131         if (e.getClickCount() == 2) {
 132             handleEvent(new MouseDoubleClickedEvent(sender, e.getWhen(),
 133                     MOUSE_ID, buttonStatus, getStateMask(e), mouseButton, getControlPosition(e), getScreenPosition(e)));
 134         }
 135     }
 136
 137
 138     public void mouseReleased(MouseEvent e) {
 139         //System.out.println("AWT mouse released: " + e);
 140         int mouseButton = getMouseButton(e);
 141         long holdTime = Long.MAX_VALUE;
 142         if (mouseButton<=pressTime.length)
 143             holdTime = e.getWhen() - pressTime[mouseButton-1];
 144
 145         buttonStatus &=~ (1<<(mouseButton-1));
 146         MouseButtonReleasedEvent me = new MouseButtonReleasedEvent(sender, e.getWhen(), MOUSE_ID, buttonStatus, getStateMask(e), mouseButton, holdTime, getControlPosition(e), getScreenPosition(e));
 147         handleEvent(me);
 148     }
 149
 150
 151     public void mouseDragged(MouseEvent e) {
 152         MouseMovedEvent me = new MouseMovedEvent(sender, e.getWhen(), MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e));
 153         handleEvent(me);
 154     }
 155
 156
 157     public void mouseMoved(MouseEvent e) {
 158         MouseMovedEvent me = new MouseMovedEvent(sender, e.getWhen(), MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e));
 159         handleEvent(me);
 160     }
 161
 162
 163     public void mouseWheelMoved(MouseWheelEvent e) {
 164         int wheelRotation = 0;
 165         if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
 166             wheelRotation = -e.getUnitsToScroll();
 167         } else {
 168             wheelRotation = -e.getWheelRotation();
 169         }
 170         handleEvent(new MouseWheelMovedEvent(
 171                 sender, e.getWhen(), MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e),
 172                 e.getScrollType(), e.getScrollAmount(), wheelRotation
 173                 ));
 174     }
 175
 176
 177     public void mouseClicked(MouseEvent e) {
 178     }
 179
 180
 181     public void keyPressed(KeyEvent e) {
 182         handleEvent(
 183                 new KeyPressedEvent(sender, e.getWhen(), e.getKeyChar(), e.getKeyCode(), e.getModifiers()));
 184     }
 185
 186
 187     public void keyReleased(KeyEvent e) {
 188         handleEvent(
 189                 new KeyReleasedEvent(sender, e.getWhen(), e.getKeyChar(), e.getKeyCode(), e.getModifiers()));
 190     }
 191
 192
 193     public void keyTyped(KeyEvent e) {
 194 //      System.out.println("keyTyped("+e+")");
 195 //        handleEvent(
 196 //                new KeyTypedEvent(sender, e.getWhen(), e.getKeyChar(), e.getKeyCode(), e.getModifiers()));
 197     }
 198
 199
 200     public void eventDispatched(AWTEvent event) {
 201         if(event.getID() == KeyEvent.KEY_PRESSED) {
 202             keyPressed((KeyEvent)event);
 203         }
 204         if(event.getID() == KeyEvent.KEY_RELEASED) {
 205             keyReleased((KeyEvent)event);
 206         }
 207         if(event.getID() == KeyEvent.KEY_TYPED) {
 208             keyTyped((KeyEvent)event);
 209         }
 210
 211         if(event.getID() == MouseEvent.MOUSE_MOVED) {
 212             mouseMoved((MouseEvent)event);
 213         }
 214         if(event.getID() == MouseEvent.MOUSE_DRAGGED) {
 215             mouseDragged((MouseEvent)event);
 216         }
 217         if(event.getID() == MouseEvent.MOUSE_PRESSED) {
 218             mousePressed((MouseEvent)event);
 219         }
 220         if(event.getID() == MouseEvent.MOUSE_RELEASED) {
 221             mouseReleased((MouseEvent)event);
 222         }
 223         if(event.getID() == MouseEvent.MOUSE_CLICKED) {
 224             mouseClicked((MouseEvent)event);
 225         }
 226         if(event.getID() == MouseEvent.MOUSE_WHEEL) {
 227             mouseWheelMoved((MouseWheelEvent)event);
 228         }
 229         if(event.getID() == MouseEvent.MOUSE_ENTERED) {
 230             mouseEntered((MouseEvent)event);
 231         }
 232         if(event.getID() == MouseEvent.MOUSE_EXITED) {
 233             mouseExited((MouseEvent)event);
 234         }
 235     }
 236 }