bundles/org.simantics.g2d/src/org/simantics/g2d/event/adapter/SWTMouseEventAdapter.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 /*
  13  *
  14  * @author Toni Kalajainen
  15  */
  16 package org.simantics.g2d.event.adapter;
  17
  18 import java.awt.geom.Point2D;
  19
  20 import org.eclipse.swt.events.MouseEvent;
  21 import org.eclipse.swt.events.MouseListener;
  22 import org.eclipse.swt.events.MouseMoveListener;
  23 import org.eclipse.swt.events.MouseTrackListener;
  24 import org.eclipse.swt.events.MouseWheelListener;
  25 import org.eclipse.swt.graphics.Point;
  26 import org.simantics.scenegraph.g2d.events.EventDebugPolicy;
  27 import org.simantics.scenegraph.g2d.events.IEventHandler;
  28 import org.simantics.scenegraph.g2d.events.IEventQueue;
  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 public class SWTMouseEventAdapter extends AbstractEventAdapter implements MouseListener, MouseMoveListener, MouseTrackListener, MouseWheelListener {
  39
  40         /** Mouse id of the default mouse */
  41         public static final int MOUSE_ID = 0;
  42
  43     private long [] pressTime = new long[5];
  44
  45         int buttonStatus = 0;
  46
  47         /**
  48          * create new adapter
  49          * @param sender the sender field in the events
  50          * @param delegator the target of the adapted events
  51          */
  52         public SWTMouseEventAdapter(Object sender, IEventHandler delegator) {
  53                 super(sender, delegator);
  54         }
  55
  56         /**
  57          * create new adapter
  58          * @param sender the sender field in the events
  59          * @param queue
  60          */
  61         public SWTMouseEventAdapter(Object sender, IEventQueue queue) {
  62                 super(sender, queue);
  63         }
  64
  65         private Point2D getControlPosition(MouseEvent e)
  66         {
  67                 return new Point2D.Double(e.x, e.y);
  68         }
  69
  70         private Point2D getScreenPosition(MouseEvent e)
  71         {
  72                 Point p = e.display.getCursorLocation();
  73                 return new Point2D.Double(p.x, p.y);
  74
  75         }
  76
  77         private int getMouseButton(MouseEvent e)
  78         {
  79                 switch (e.button) {
  80                         case 1: return 1; // LEFT
  81                         case 2: return 3; // RIGHT
  82                         case 3: return 2; // MIDDLE
  83                         case 4: return 4; // BUTTON4
  84                         case 5: return 5; // BUTTON5
  85                 }
  86                 return e.button;
  87         }
  88
  89         static private int getStateMask(MouseEvent e) {
  90             return SWTKeyEventAdapter.adaptSWTModifierToAWTModifier(e.stateMask);
  91         }
  92
  93         @Override
  94         public void mouseDoubleClick(MouseEvent e) {
  95                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
  96                         System.out.println("SWT mouse double clicked: " + e);
  97                 handleEvent(new MouseDoubleClickedEvent(
  98                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getMouseButton(e), getControlPosition(e), getScreenPosition(e)
  99                                 ));
 100         }
 101
 102         @Override
 103         public void mouseDown(MouseEvent e) {
 104                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 105                         System.out.println("SWT mouse down: " + e);
 106                 buttonStatus |= 1 << e.button;
 107                 if (e.button<=pressTime.length) pressTime[e.button-1] = e.time & 0xffffffff;
 108                 handleEvent(new MouseButtonPressedEvent(
 109                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getMouseButton(e), getControlPosition(e), getScreenPosition(e)
 110                                 ));
 111         }
 112
 113         @Override
 114         public void mouseUp(MouseEvent e) {
 115                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 116                         System.out.println("SWT mouse up: " + e);
 117                 buttonStatus &=~ (1<<e.button);
 118                 long holdTime = Long.MAX_VALUE;
 119                 if (e.button<=pressTime.length)
 120                         holdTime = (e.time & 0xffffffff) - pressTime[e.button-1];
 121
 122                 handleEvent(new MouseButtonReleasedEvent(
 123                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getMouseButton(e), holdTime, getControlPosition(e), getScreenPosition(e)
 124                                 ));
 125         }
 126
 127         @Override
 128         public void mouseMove(MouseEvent e) {
 129                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 130                         System.out.println("SWT mouse move: " + e);
 131                 MouseMovedEvent mme = new MouseMovedEvent(
 132                         sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e));
 133                 handleEvent(mme);
 134         }
 135
 136         @Override
 137         public void mouseEnter(MouseEvent e) {
 138                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 139                         System.out.println("SWT mouse enter: " + e);
 140                 handleEvent(new MouseEnterEvent(
 141                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e)
 142                                 ));
 143         }
 144
 145         @Override
 146         public void mouseExit(MouseEvent e) {
 147                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 148                         System.out.println("SWT mouse exit: " + e);
 149                 handleEvent(new MouseExitEvent(
 150                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e)
 151                                 ));
 152         }
 153
 154         @Override
 155         public void mouseHover(MouseEvent e) {
 156                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 157                         System.out.println("SWT mouse hover: " + e);
 158         }
 159
 160         @Override
 161         public void mouseScrolled(MouseEvent e) {
 162                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 163                         System.out.println("SWT mouse scrolled: " + e);
 164                 handleEvent(new MouseWheelMovedEvent(
 165                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus,
 166                                 getStateMask(e),
 167                                 getControlPosition(e), getScreenPosition(e),
 168                                 MouseWheelMovedEvent.WHEEL_UNIT_SCROLL,
 169                                 0,
 170                                 e.count
 171                                 ));
 172         }
 173
 174 }