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 import org.simantics.utils.ui.SWTDPIUtil;
  38
  39 public class SWTMouseEventAdapter extends AbstractEventAdapter implements MouseListener, MouseMoveListener, MouseTrackListener, MouseWheelListener {
  40
  41         /** Mouse id of the default mouse */
  42         public static final int MOUSE_ID = 0;
  43
  44     private long [] pressTime = new long[5];
  45
  46         int buttonStatus = 0;
  47
  48         /**
  49          * create new adapter
  50          * @param sender the sender field in the events
  51          * @param delegator the target of the adapted events
  52          */
  53         public SWTMouseEventAdapter(Object sender, IEventHandler delegator) {
  54                 super(sender, delegator);
  55         }
  56
  57         /**
  58          * create new adapter
  59          * @param sender the sender field in the events
  60          * @param queue
  61          */
  62         public SWTMouseEventAdapter(Object sender, IEventQueue queue) {
  63                 super(sender, queue);
  64         }
  65
  66         private Point2D getControlPosition(MouseEvent e)
  67         {
  68                 return new Point2D.Double(SWTDPIUtil.upscaleSwt(e.x), SWTDPIUtil.upscaleSwt(e.y));
  69         }
  70
  71         private Point2D getScreenPosition(MouseEvent e)
  72         {
  73                 Point p = SWTDPIUtil.upscaleSwt(e.display.getCursorLocation());
  74                 return new Point2D.Double(p.x, p.y);
  75
  76         }
  77
  78         private int getMouseButton(MouseEvent e)
  79         {
  80                 switch (e.button) {
  81                         case 1: return 1; // LEFT
  82                         case 2: return 3; // RIGHT
  83                         case 3: return 2; // MIDDLE
  84                         case 4: return 4; // BUTTON4
  85                         case 5: return 5; // BUTTON5
  86                 }
  87                 return e.button;
  88         }
  89
  90         static private int getStateMask(MouseEvent e) {
  91             return SWTKeyEventAdapter.adaptSWTModifierToAWTModifier(e.stateMask);
  92         }
  93
  94         @Override
  95         public void mouseDoubleClick(MouseEvent e) {
  96                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
  97                         System.out.println("SWT mouse double clicked: " + e);
  98                 handleEvent(new MouseDoubleClickedEvent(
  99                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getMouseButton(e), getControlPosition(e), getScreenPosition(e)
 100                                 ));
 101         }
 102
 103         @Override
 104         public void mouseDown(MouseEvent e) {
 105                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 106                         System.out.println("SWT mouse down: " + e);
 107                 buttonStatus |= 1 << e.button;
 108                 if (e.button<=pressTime.length) pressTime[e.button-1] = e.time & 0xffffffff;
 109                 handleEvent(new MouseButtonPressedEvent(
 110                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getMouseButton(e), getControlPosition(e), getScreenPosition(e)
 111                                 ));
 112         }
 113
 114         @Override
 115         public void mouseUp(MouseEvent e) {
 116                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 117                         System.out.println("SWT mouse up: " + e);
 118                 buttonStatus &=~ (1<<e.button);
 119                 long holdTime = Long.MAX_VALUE;
 120                 if (e.button<=pressTime.length)
 121                         holdTime = (e.time & 0xffffffff) - pressTime[e.button-1];
 122
 123                 handleEvent(new MouseButtonReleasedEvent(
 124                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getMouseButton(e), holdTime, getControlPosition(e), getScreenPosition(e)
 125                                 ));
 126         }
 127
 128         @Override
 129         public void mouseMove(MouseEvent e) {
 130                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 131                         System.out.println("SWT mouse move: " + e);
 132                 MouseMovedEvent mme = new MouseMovedEvent(
 133                         sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e));
 134                 handleEvent(mme);
 135         }
 136
 137         @Override
 138         public void mouseEnter(MouseEvent e) {
 139                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 140                         System.out.println("SWT mouse enter: " + e);
 141                 handleEvent(new MouseEnterEvent(
 142                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e)
 143                                 ));
 144         }
 145
 146         @Override
 147         public void mouseExit(MouseEvent e) {
 148                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 149                         System.out.println("SWT mouse exit: " + e);
 150                 handleEvent(new MouseExitEvent(
 151                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus, getStateMask(e), getControlPosition(e), getScreenPosition(e)
 152                                 ));
 153         }
 154
 155         @Override
 156         public void mouseHover(MouseEvent e) {
 157                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 158                         System.out.println("SWT mouse hover: " + e);
 159         }
 160
 161         @Override
 162         public void mouseScrolled(MouseEvent e) {
 163                 if (EventDebugPolicy.SWT_MOUSE_EVENT_ADAPTION)
 164                         System.out.println("SWT mouse scrolled: " + e);
 165                 handleEvent(new MouseWheelMovedEvent(
 166                                 sender, e.time & 0xffffffff, MOUSE_ID, buttonStatus,
 167                                 getStateMask(e),
 168                                 getControlPosition(e), getScreenPosition(e),
 169                                 MouseWheelMovedEvent.WHEEL_UNIT_SCROLL,
 170                                 0,
 171                                 e.count
 172                                 ));
 173         }
 174
 175 }