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/*
* Copyright 1998-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
package javax.media.j3d;
import java.util.ArrayList;
/**
* The PointAttributesRetained object defines all rendering state that can be set
* as a component object of a Shape3D node.
*/
class PointAttributesRetained extends NodeComponentRetained {
// A list of pre-defined bits to indicate which component
// in this LineAttributesRetained object changed.
static final int POINT_SIZE_CHANGED = 0x01;
static final int POINT_AA_CHANGED = 0x02;
// Size, in pixels, of point primitives
float pointSize = 1.0f;
// Point antialiasing switch
boolean pointAntialiasing = false;
/**
* Sets the point size for this appearance component object.
* @param pointSize the size, in pixels, of point primitives
*/
final void initPointSize(float pointSize) {
this.pointSize = pointSize;
}
/**
* Sets the point size for this appearance component object and sends a
* message notifying the interested structures of the change.
* @param pointSize the size, in pixels, of point primitives
*/
final void setPointSize(float pointSize) {
initPointSize(pointSize);
sendMessage(POINT_SIZE_CHANGED, new Float(pointSize));
}
/**
* Gets the point size for this appearance component object.
* @return the size, in pixels, of point primitives
*/
final float getPointSize() {
return pointSize;
}
/**
* Enables or disables point antialiasing
* for this appearance component object.
* @param state true or false to enable or disable point antialiasing
*/
final void initPointAntialiasingEnable(boolean state) {
pointAntialiasing = state;
}
/**
* Enables or disables point antialiasing
* for this appearance component object and sends a
* message notifying the interested structures of the change.
* @param state true or false to enable or disable point antialiasing
*/
final void setPointAntialiasingEnable(boolean state) {
initPointAntialiasingEnable(state);
sendMessage(POINT_AA_CHANGED,
(state ? Boolean.TRUE: Boolean.FALSE));
}
/**
* Retrieves the state of the point antialiasing flag.
* @return true if point antialiasing is enabled,
* false if point antialiasing is disabled
*/
final boolean getPointAntialiasingEnable() {
return pointAntialiasing;
}
/**
* Creates and initializes a mirror object, point the mirror object
* to the retained object if the object is not editable
*/
@Override
synchronized void createMirrorObject() {
if (mirror == null) {
// Check the capability bits and let the mirror object
// point to itself if is not editable
if (isStatic()) {
mirror = this;
} else {
PointAttributesRetained mirrorPa
= new PointAttributesRetained();
mirrorPa.set(this);
mirrorPa.source = source;
mirror = mirrorPa;
}
} else {
((PointAttributesRetained) mirror).set(this);
}
}
/**
* Update the native context
*/
void updateNative(Context ctx) {
Pipeline.getPipeline().updatePointAttributes(ctx, pointSize, pointAntialiasing);
}
/**
* Initializes a mirror object, point the mirror object to the retained
* object if the object is not editable
*/
@Override
synchronized void initMirrorObject() {
((PointAttributesRetained)mirror).set(this);
}
/**
* Update the "component" field of the mirror object with the
* given "value"
*/
@Override
synchronized void updateMirrorObject(int component, Object value) {
PointAttributesRetained mirrorPa = (PointAttributesRetained) mirror;
if ((component & POINT_SIZE_CHANGED) != 0) {
mirrorPa.pointSize = ((Float)value).floatValue();
}
else if ((component & POINT_AA_CHANGED) != 0) {
mirrorPa.pointAntialiasing = ((Boolean)value).booleanValue();
}
}
boolean equivalent(PointAttributesRetained pr) {
return ((pr != null) &&
(pr.pointSize == pointSize) &&
(pr.pointAntialiasing == pointAntialiasing));
}
protected void set(PointAttributesRetained pr) {
super.set(pr);
pointSize = pr.pointSize;
pointAntialiasing = pr.pointAntialiasing;
}
final void sendMessage(int attrMask, Object attr) {
ArrayList<VirtualUniverse> univList = new ArrayList<VirtualUniverse>();
ArrayList<ArrayList<GeometryAtom>> gaList = Shape3DRetained.getGeomAtomsList(mirror.users, univList);
// Send to rendering attribute structure, regardless of
// whether there are users or not (alternate appearance case ..)
J3dMessage createMessage = new J3dMessage();
createMessage.threads = J3dThread.UPDATE_RENDERING_ATTRIBUTES;
createMessage.type = J3dMessage.POINTATTRIBUTES_CHANGED;
createMessage.universe = null;
createMessage.args[0] = this;
createMessage.args[1]= new Integer(attrMask);
createMessage.args[2] = attr;
createMessage.args[3] = new Integer(changedFrequent);
VirtualUniverse.mc.processMessage(createMessage);
// System.err.println("univList.size is " + univList.size());
for(int i=0; i<univList.size(); i++) {
createMessage = new J3dMessage();
createMessage.threads = J3dThread.UPDATE_RENDER;
createMessage.type = J3dMessage.POINTATTRIBUTES_CHANGED;
createMessage.universe = univList.get(i);
createMessage.args[0] = this;
createMessage.args[1]= new Integer(attrMask);
createMessage.args[2] = attr;
ArrayList<GeometryAtom> gL = gaList.get(i);
GeometryAtom[] gaArr = new GeometryAtom[gL.size()];
gL.toArray(gaArr);
createMessage.args[3] = gaArr;
VirtualUniverse.mc.processMessage(createMessage);
}
}
@Override
void handleFrequencyChange(int bit) {
if (bit == PointAttributes.ALLOW_SIZE_WRITE ||
bit == PointAttributes.ALLOW_ANTIALIASING_WRITE) {
setFrequencyChangeMask(bit, 0x1);
}
}
}
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