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-rw-r--r--src/VirtualInputDevice/WheelControls.java399
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diff --git a/src/VirtualInputDevice/WheelControls.java b/src/VirtualInputDevice/WheelControls.java
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-/*
- * $RCSfile$
- *
- * Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistribution of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any
- * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
- * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
- * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
- * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
- * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
- * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
- * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
- * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
- * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
- * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed, licensed or
- * intended for use in the design, construction, operation or
- * maintenance of any nuclear facility.
- *
- * $Revision$
- * $Date$
- * $State$
- */
-
-import java.awt.*;
-import java.awt.geom.*;
-import java.awt.event.*;
-
-public class WheelControls extends Canvas implements RotationControls, MouseMotionListener, MouseListener {
-
- private final static int NONE=0;
- private final static int SLIDE_Y=1;
- private final static int SLIDE_X=2;
- private final static int SLIDE_Z=3;
-
- private int mode = NONE;
-
- private Dimension size;
- private int thickness;
- private int diameter;
- private int space;
- private int pipSize;
- private int pipOffset; // Amount pip is below wheel
- private int margin; // Margin between edge of Canvas and
- // controls
-
- private Polygon yPip;
- private Rectangle yBackClip;
-
- private Polygon xPip;
- private Rectangle xBackClip;
-
- private Polygon zPip;
-
- private Rectangle yArea;
- private Rectangle xArea;
- private Rectangle zArea;
-
- private Point oldMousePos = new Point();
-
- float yAngle = 0.0f;
- float xAngle = 0.0f;
- float zAngle = 0.0f;
-
- float yOrigAngle;
- float xOrigAngle;
- float zOrigAngle;
-
- float angleStep = (float)Math.PI/30.0f;
-
- public WheelControls() {
- this(0.0f, 0.0f, 0.0f);
- }
-
- public WheelControls( float rotX, float rotY, float rotZ ) {
- size = new Dimension( 200, 200 );
-
- xAngle = constrainAngle(rotX);
- yAngle = constrainAngle(rotY);
- zAngle = constrainAngle(rotZ);
-
- yOrigAngle = yAngle;
- xOrigAngle = xAngle;
- zOrigAngle = zAngle;
-
- setSizes();
-
- yPip = new Polygon();
- yPip.addPoint( 0, 0 );
- yPip.addPoint( -pipSize/2, pipSize );
- yPip.addPoint( pipSize/2, pipSize );
-
- xPip = new Polygon();
- xPip.addPoint(0,0);
- xPip.addPoint( pipSize, -pipSize/2 );
- xPip.addPoint( pipSize, pipSize/2 );
-
- zPip = new Polygon();
- zPip.addPoint( diameter/2, pipOffset );
- zPip.addPoint( diameter/2-pipSize/2, pipOffset-pipSize );
- zPip.addPoint( diameter/2+pipSize/2, pipOffset-pipSize );
-
- addMouseListener( this );
- addMouseMotionListener( this );
- }
-
- private void setSizes() {
- margin = 10;
- int width = size.width - margin*2;
- thickness = width * 7 / 100;
- diameter = width * 70 / 100;
- space = width * 10 / 100;
- pipSize = width * 7 / 100;
-
- pipOffset = thickness/2;
-
- }
-
- public void paint( Graphics g ) {
- Graphics2D g2 = (Graphics2D)g;
-
- g.drawOval( margin,margin, diameter, diameter );
- zArea = new Rectangle( margin, margin, diameter, diameter );
- drawZPip( g2, zAngle );
-
- g.drawRect( margin, margin+diameter+space,
- diameter, thickness ); // Y Wheel
- yArea = new Rectangle( margin, margin+diameter+space, margin+diameter,
- thickness+pipOffset );
- yBackClip = new Rectangle( margin-thickness,
- margin+diameter+space+thickness,
- margin+diameter+thickness*2, thickness );
- drawYPip( g2, yAngle );
-
- g.drawRect( margin+diameter+space, margin,
- thickness, diameter ); // X Wheel
- xArea = new Rectangle( margin+diameter+space, margin,
- thickness+pipOffset, margin+diameter );
- xBackClip = new Rectangle( margin+diameter+space+thickness,
- margin-thickness,
- thickness, margin+diameter+thickness*2 );
- drawXPip( g2, xAngle );
-
-
- }
-
- public float getXAngle() {
- return xAngle;
- }
-
- public float getYAngle() {
- return yAngle;
- }
-
- public float getZAngle() {
- return zAngle;
- }
-
-
- public void reset() {
- // Overwrite the old pip
- drawYPip( (Graphics2D)(this.getGraphics()),
- yAngle );
- yAngle = yOrigAngle;
- // Draw the new Pip
- drawYPip( (Graphics2D)(this.getGraphics()),
- yAngle );
-
- // Overwrite the old pip
- drawXPip( (Graphics2D)(this.getGraphics()),
- xAngle );
- xAngle = xOrigAngle;
- // Draw the new Pip
- drawXPip( (Graphics2D)(this.getGraphics()),
- xAngle );
-
- drawZPip( (Graphics2D)(this.getGraphics()),
- zAngle );
-
- zAngle = zOrigAngle;
-
- drawZPip( (Graphics2D)(this.getGraphics()),
- zAngle );
- oldMousePos.setLocation(0,0);
- }
-
-
- private void drawXPip( Graphics2D g2, float angle ) {
- AffineTransform trans = new AffineTransform();
- int y;
- int xOrig = margin+diameter+space;
- int yOrig = margin;
- Color origColor = g2.getColor();
-
- if (angle <= Math.PI) {
- y = yOrig + diameter - (int)((Math.abs( angle-Math.PI/2 )/(Math.PI/2)) * diameter/2);
- } else
- y = yOrig + (int)((Math.abs( (angle-Math.PI*1.5) )/(Math.PI/2)) * diameter/2);
-
- if (angle<Math.PI/2 || angle > Math.PI*1.5)
- g2.setColor( Color.red ); // Infront of wheel
- else {
- g2.setColor( Color.black ); // Behind Wheel
- g2.setClip( xBackClip );
- }
-
- g2.setXORMode( getBackground() );
- trans.setToTranslation( xOrig+pipOffset, y );
- g2.setTransform( trans );
- g2.fillPolygon( xPip );
-
- // Reset graphics context
- trans.setToIdentity();
- g2.setTransform( trans );
- g2.setColor(origColor);
- g2.setPaintMode();
- }
-
- private void drawYPip( Graphics2D g2, float angle ) {
- AffineTransform trans = new AffineTransform();
- int x;
- int xOrig = margin;
- int yOrig = margin+diameter+space;
- Color origColor = g2.getColor();
-
- if (angle <= Math.PI) {
- x = xOrig + diameter - (int)((Math.abs( angle-Math.PI/2 )/(Math.PI/2)) * diameter/2);
- } else
- x = xOrig + (int)((Math.abs( (angle-Math.PI*1.5) )/(Math.PI/2)) * diameter/2);
-
- if (angle<Math.PI/2 || angle > Math.PI*1.5)
- g2.setColor( Color.red ); // Infront on wheel
- else {
- g2.setColor( Color.black ); // Behind Wheel
- g2.setClip( yBackClip );
- }
-
- g2.setXORMode( getBackground() );
- trans.setToTranslation( x, yOrig+pipOffset );
- g2.setTransform( trans );
- g2.fillPolygon( yPip );
-
- // Reset graphics context
- trans.setToIdentity();
- g2.setTransform( trans );
- g2.setColor(origColor);
- g2.setPaintMode();
- }
-
- private void drawZPip( Graphics2D g2, float zAngle ) {
- AffineTransform trans = new AffineTransform();
- Color origColor = g2.getColor();
-
- trans.translate( margin, margin );
- trans.rotate(zAngle, diameter/2, diameter/2 );
-
- g2.setXORMode( getBackground() );
- g2.setTransform(trans);
- g2.setColor( Color.red );
- g2.fillPolygon( zPip );
-
- // Reset graphics context
- trans.setToIdentity();
- g2.setTransform( trans );
- g2.setColor( origColor );
- g2.setPaintMode();
- }
-
- public Dimension getPreferredSize() {
- return size;
- }
-
- public void setSize( Dimension d ) {
- // Set size to smallest dimension
- if (d.width<d.height)
- size.width = size.height = d.width;
- else
- size.width = size.height = d.height;
- setSizes();
- }
-
- public void mouseClicked( MouseEvent e ) {
- }
-
- public void mouseEntered( MouseEvent e ) {
- }
-
- public void mouseExited( MouseEvent e ) {
- }
-
- public void mousePressed( MouseEvent e ) {
- if ( yArea.contains( e.getPoint() )) {
- mode = SLIDE_Y;
- oldMousePos = e.getPoint();
- } else if (xArea.contains( e.getPoint() )) {
- mode = SLIDE_X;
- oldMousePos = e.getPoint();
- } else if (zArea.contains( e.getPoint() )) {
- mode = SLIDE_Z;
- oldMousePos = e.getPoint();
- }
- }
-
- public void mouseReleased( MouseEvent e ) {
- mode = NONE;
- }
-
- public void mouseDragged( MouseEvent e ) {
- Point pos = e.getPoint();
-
- int diffX = pos.x - oldMousePos.x;
- int diffY = pos.y - oldMousePos.y;
-
- switch(mode) {
- case NONE:
- break;
- case SLIDE_Y:
- // Overwrite the old pip
- drawYPip( (Graphics2D)((Canvas)e.getSource()).getGraphics(),
- yAngle );
- if (diffX<0)
- yAngle -= angleStep;
- else if (diffX>0)
- yAngle += angleStep;
-
- yAngle = constrainAngle(yAngle);
-
- // Draw the new Pip
- drawYPip( (Graphics2D)((Canvas)e.getSource()).getGraphics(),
- yAngle );
- oldMousePos = pos;
- break;
- case SLIDE_X:
- // Overwrite the old pip
- drawXPip( (Graphics2D)((Canvas)e.getSource()).getGraphics(),
- xAngle );
- if (diffY<0)
- xAngle -= angleStep;
- else if (diffY>0)
- xAngle += angleStep;
-
- xAngle = constrainAngle(xAngle);
-
- // Draw the new Pip
- drawXPip( (Graphics2D)((Canvas)e.getSource()).getGraphics(),
- xAngle );
- oldMousePos = pos;
- break;
- case SLIDE_Z:
- drawZPip( (Graphics2D)((Canvas)e.getSource()).getGraphics(),
- zAngle );
-
- if (diffX<0)
- zAngle -= angleStep;
- else if (diffX>0)
- zAngle += angleStep;
-
- zAngle = constrainAngle( zAngle );
- drawZPip( (Graphics2D)((Canvas)e.getSource()).getGraphics(),
- zAngle );
- oldMousePos = pos;
- break;
- default:
- throw( new RuntimeException("Internal Error"));
- }
- }
-
- public void mouseMoved( MouseEvent e ) {
- }
-
- /**
- * Constrain angle to be 0<angle<2PI
- */
- private float constrainAngle( float angle ) {
- if ( angle > (float)Math.PI*2 ) return angle-(float)Math.PI*2;
- if ( angle < 0.0f) return angle+(float)Math.PI*2;
- return angle;
- }
-}
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