Source Code Cross Referenced for MouseTranslate.java in  » 6.0-JDK-Modules » java-3d » com » sun » j3d » utils » behaviors » mouse » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » java 3d » com.sun.j3d.utils.behaviors.mouse 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $RCSfile: MouseTranslate.java,v $
003:         *
004:         * Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * Redistribution and use in source and binary forms, with or without
007:         * modification, are permitted provided that the following conditions
008:         * are met:
009:         *
010:         * - Redistribution of source code must retain the above copyright
011:         *   notice, this list of conditions and the following disclaimer.
012:         *
013:         * - Redistribution in binary form must reproduce the above copyright
014:         *   notice, this list of conditions and the following disclaimer in
015:         *   the documentation and/or other materials provided with the
016:         *   distribution.
017:         *
018:         * Neither the name of Sun Microsystems, Inc. or the names of
019:         * contributors may be used to endorse or promote products derived
020:         * from this software without specific prior written permission.
021:         *
022:         * This software is provided "AS IS," without a warranty of any
023:         * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
024:         * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
025:         * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
026:         * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
027:         * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
028:         * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
029:         * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
030:         * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
031:         * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
032:         * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
033:         * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
034:         * POSSIBILITY OF SUCH DAMAGES.
035:         *
036:         * You acknowledge that this software is not designed, licensed or
037:         * intended for use in the design, construction, operation or
038:         * maintenance of any nuclear facility.
039:         *
040:         * $Revision: 1.4 $
041:         * $Date: 2007/02/09 17:20:13 $
042:         * $State: Exp $
043:         */
044:
045:        package com.sun.j3d.utils.behaviors.mouse;
046:
047:        import java.awt.*;
048:        import java.awt.event.*;
049:        import java.util.*;
050:        import javax.media.j3d.*;
051:        import javax.vecmath.*;
052:
053:        /**
054:         * MouseTranslate is a Java3D behavior object that lets users control the 
055:         * translation (X, Y) of an object via a mouse drag motion with the third
056:         * mouse button (alt-click on PC). See MouseRotate for similar usage info.
057:         */
058:
059:        public class MouseTranslate extends MouseBehavior {
060:
061:            double x_factor = .02;
062:            double y_factor = .02;
063:            Vector3d translation = new Vector3d();
064:
065:            private MouseBehaviorCallback callback = null;
066:
067:            /**
068:             * Creates a mouse translate behavior given the transform group.
069:             * @param transformGroup The transformGroup to operate on.
070:             */
071:            public MouseTranslate(TransformGroup transformGroup) {
072:                super (transformGroup);
073:            }
074:
075:            /**
076:             * Creates a default translate behavior.
077:             */
078:            public MouseTranslate() {
079:                super (0);
080:            }
081:
082:            /**
083:             * Creates a translate behavior.
084:             * Note that this behavior still needs a transform
085:             * group to work on (use setTransformGroup(tg)) and
086:             * the transform group must add this behavior.
087:             * @param flags
088:             */
089:            public MouseTranslate(int flags) {
090:                super (flags);
091:            }
092:
093:            /**
094:             * Creates a translate behavior that uses AWT listeners and behavior
095:             * posts rather than WakeupOnAWTEvent.  The behavior is added to the
096:             * specified Component. A null component can be passed to specify
097:             * the behavior should use listeners.  Components can then be added
098:             * to the behavior with the addListener(Component c) method.
099:             * @param c The Component to add the MouseListener
100:             * and MouseMotionListener to.
101:             * @since Java 3D 1.2.1
102:             */
103:            public MouseTranslate(Component c) {
104:                super (c, 0);
105:            }
106:
107:            /**
108:             * Creates a translate behavior that uses AWT listeners and behavior
109:             * posts rather than WakeupOnAWTEvent.  The behaviors is added to
110:             * the specified Component and works on the given TransformGroup.
111:             * A null component can be passed to specify the behavior should use
112:             * listeners.  Components can then be added to the behavior with the
113:             * addListener(Component c) method.
114:             * @param c The Component to add the MouseListener and
115:             * MouseMotionListener to.
116:             * @param transformGroup The TransformGroup to operate on.
117:             * @since Java 3D 1.2.1
118:             */
119:            public MouseTranslate(Component c, TransformGroup transformGroup) {
120:                super (c, transformGroup);
121:            }
122:
123:            /**
124:             * Creates a translate behavior that uses AWT listeners and behavior
125:             * posts rather than WakeupOnAWTEvent.  The behavior is added to the
126:             * specified Component.  A null component can be passed to specify
127:             * the behavior should use listeners.  Components can then be added to
128:             * the behavior with the addListener(Component c) method.
129:             * Note that this behavior still needs a transform
130:             * group to work on (use setTransformGroup(tg)) and the transform
131:             * group must add this behavior.
132:             * @param flags interesting flags (wakeup conditions).
133:             * @since Java 3D 1.2.1
134:             */
135:            public MouseTranslate(Component c, int flags) {
136:                super (c, flags);
137:            }
138:
139:            public void initialize() {
140:                super .initialize();
141:                if ((flags & INVERT_INPUT) == INVERT_INPUT) {
142:                    invert = true;
143:                    x_factor *= -1;
144:                    y_factor *= -1;
145:                }
146:            }
147:
148:            /**
149:             * Return the x-axis movement multipler.
150:             **/
151:            public double getXFactor() {
152:                return x_factor;
153:            }
154:
155:            /**
156:             * Return the y-axis movement multipler.
157:             **/
158:            public double getYFactor() {
159:                return y_factor;
160:            }
161:
162:            /**
163:             * Set the x-axis amd y-axis movement multipler with factor.
164:             **/
165:            public void setFactor(double factor) {
166:                x_factor = y_factor = factor;
167:            }
168:
169:            /**
170:             * Set the x-axis amd y-axis movement multipler with xFactor and yFactor
171:             * respectively.
172:             **/
173:            public void setFactor(double xFactor, double yFactor) {
174:                x_factor = xFactor;
175:                y_factor = yFactor;
176:            }
177:
178:            public void processStimulus(Enumeration criteria) {
179:                WakeupCriterion wakeup;
180:                AWTEvent[] events;
181:                MouseEvent evt;
182:                // 	int id;
183:                // 	int dx, dy;
184:
185:                while (criteria.hasMoreElements()) {
186:                    wakeup = (WakeupCriterion) criteria.nextElement();
187:
188:                    if (wakeup instanceof  WakeupOnAWTEvent) {
189:                        events = ((WakeupOnAWTEvent) wakeup).getAWTEvent();
190:                        if (events.length > 0) {
191:                            evt = (MouseEvent) events[events.length - 1];
192:                            doProcess(evt);
193:                        }
194:                    }
195:
196:                    else if (wakeup instanceof  WakeupOnBehaviorPost) {
197:                        while (true) {
198:                            // access to the queue must be synchronized
199:                            synchronized (mouseq) {
200:                                if (mouseq.isEmpty())
201:                                    break;
202:                                evt = (MouseEvent) mouseq.remove(0);
203:                                // consolodate MOUSE_DRAG events
204:                                while ((evt.getID() == MouseEvent.MOUSE_DRAGGED)
205:                                        && !mouseq.isEmpty()
206:                                        && (((MouseEvent) mouseq.get(0))
207:                                                .getID() == MouseEvent.MOUSE_DRAGGED)) {
208:                                    evt = (MouseEvent) mouseq.remove(0);
209:                                }
210:                            }
211:                            doProcess(evt);
212:                        }
213:                    }
214:
215:                }
216:                wakeupOn(mouseCriterion);
217:            }
218:
219:            void doProcess(MouseEvent evt) {
220:                int id;
221:                int dx, dy;
222:
223:                processMouseEvent(evt);
224:
225:                if (((buttonPress) && ((flags & MANUAL_WAKEUP) == 0))
226:                        || ((wakeUp) && ((flags & MANUAL_WAKEUP) != 0))) {
227:                    id = evt.getID();
228:                    if ((id == MouseEvent.MOUSE_DRAGGED) && !evt.isAltDown()
229:                            && evt.isMetaDown()) {
230:
231:                        x = evt.getX();
232:                        y = evt.getY();
233:
234:                        dx = x - x_last;
235:                        dy = y - y_last;
236:
237:                        if ((!reset)
238:                                && ((Math.abs(dy) < 50) && (Math.abs(dx) < 50))) {
239:                            //System.out.println("dx " + dx + " dy " + dy);
240:                            transformGroup.getTransform(currXform);
241:
242:                            translation.x = dx * x_factor;
243:                            translation.y = -dy * y_factor;
244:
245:                            transformX.set(translation);
246:
247:                            if (invert) {
248:                                currXform.mul(currXform, transformX);
249:                            } else {
250:                                currXform.mul(transformX, currXform);
251:                            }
252:
253:                            transformGroup.setTransform(currXform);
254:
255:                            transformChanged(currXform);
256:
257:                            if (callback != null)
258:                                callback.transformChanged(
259:                                        MouseBehaviorCallback.TRANSLATE,
260:                                        currXform);
261:
262:                        } else {
263:                            reset = false;
264:                        }
265:                        x_last = x;
266:                        y_last = y;
267:                    } else if (id == MouseEvent.MOUSE_PRESSED) {
268:                        x_last = evt.getX();
269:                        y_last = evt.getY();
270:                    }
271:                }
272:            }
273:
274:            /**
275:             * Users can overload this method  which is called every time
276:             * the Behavior updates the transform
277:             *
278:             * Default implementation does nothing
279:             */
280:            public void transformChanged(Transform3D transform) {
281:            }
282:
283:            /**
284:             * The transformChanged method in the callback class will
285:             * be called every time the transform is updated
286:             */
287:            public void setupCallback(MouseBehaviorCallback callback) {
288:                this.callback = callback;
289:            }
290:        }
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