/*
* Copyright (c) 2011, 2012, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package apple.laf;
import apple.laf.JRSUIConstants.*;
@SuppressWarnings("unchecked")
public class JRSUIState {
// static HashSet<JRSUIState> states = new HashSet<JRSUIState>();
final long encodedState;
long derivedEncodedState;
static JRSUIState prototype = new JRSUIState(0);
public static JRSUIState getInstance() {
return prototype.derive();
}
JRSUIState(final Widget widget) {
this(widget.apply(0));
}
JRSUIState(final long encodedState) {
this.encodedState = derivedEncodedState = encodedState;
}
boolean isDerivationSame() {
return encodedState == derivedEncodedState;
}
public <T extends JRSUIState> T derive() {
if (isDerivationSame()) return (T)this;
final T derivation = (T)createDerivation();
// if (!states.add(derivation)) {
// System.out.println("dupe: " + states.size());
// }
return derivation;
}
public <T extends JRSUIState> T createDerivation() {
return (T)new JRSUIState(derivedEncodedState);
}
public void reset() {
derivedEncodedState = encodedState;
}
public void set(final Property property) {
derivedEncodedState = property.apply(derivedEncodedState);
}
public void apply(final JRSUIControl control) {
control.setEncodedState(encodedState);
}
@Override
public boolean equals(final Object obj) {
if (!(obj instanceof JRSUIState)) return false;
return encodedState == ((JRSUIState)obj).encodedState && getClass().equals(obj.getClass());
}
public boolean is(Property property) {
return (byte)((derivedEncodedState & property.encoding.mask) >> property.encoding.shift) == property.ordinal;
}
@Override
public int hashCode() {
return (int)(encodedState ^ (encodedState >>> 32)) ^ getClass().hashCode();
}
public static class AnimationFrameState extends JRSUIState {
final int animationFrame;
int derivedAnimationFrame;
AnimationFrameState(final long encodedState, final int animationFrame) {
super(encodedState);
this.animationFrame = derivedAnimationFrame = animationFrame;
}
@Override
boolean isDerivationSame() {
return super.isDerivationSame() && (animationFrame == derivedAnimationFrame);
}
@Override
public <T extends JRSUIState> T createDerivation() {
return (T)new AnimationFrameState(derivedEncodedState, derivedAnimationFrame);
}
@Override
public void reset() {
super.reset();
derivedAnimationFrame = animationFrame;
}
public void setAnimationFrame(final int frame) {
this.derivedAnimationFrame = frame;
}
@Override
public void apply(final JRSUIControl control) {
super.apply(control);
control.set(Key.ANIMATION_FRAME, animationFrame);
}
@Override
public boolean equals(final Object obj) {
if (!(obj instanceof AnimationFrameState)) return false;
return animationFrame == ((AnimationFrameState)obj).animationFrame && super.equals(obj);
}
@Override
public int hashCode() {
return super.hashCode() ^ animationFrame;
}
}
public static class ValueState extends JRSUIState {
final double value;
double derivedValue;
ValueState(final long encodedState, final double value) {
super(encodedState);
this.value = derivedValue = value;
}
@Override
boolean isDerivationSame() {
return super.isDerivationSame() && (value == derivedValue);
}
@Override
public <T extends JRSUIState> T createDerivation() {
return (T)new ValueState(derivedEncodedState, derivedValue);
}
@Override
public void reset() {
super.reset();
derivedValue = value;
}
public void setValue(final double value) {
derivedValue = value;
}
@Override
public void apply(final JRSUIControl control) {
super.apply(control);
control.set(Key.VALUE, value);
}
@Override
public boolean equals(final Object obj) {
if (!(obj instanceof ValueState)) return false;
return value == ((ValueState)obj).value && super.equals(obj);
}
@Override
public int hashCode() {
final long bits = Double.doubleToRawLongBits(value);
return super.hashCode() ^ (int)bits ^ (int)(bits >>> 32);
}
}
public static class TitleBarHeightState extends ValueState {
TitleBarHeightState(final long encodedState, final double value) {
super(encodedState, value);
}
@Override
public <T extends JRSUIState> T createDerivation() {
return (T)new TitleBarHeightState(derivedEncodedState, derivedValue);
}
@Override
public void apply(final JRSUIControl control) {
super.apply(control);
control.set(Key.WINDOW_TITLE_BAR_HEIGHT, value);
}
}
public static class ScrollBarState extends ValueState {
final double thumbProportion;
double derivedThumbProportion;
final double thumbStart;
double derivedThumbStart;
ScrollBarState(final long encodedState, final double value, final double thumbProportion, final double thumbStart) {
super(encodedState, value);
this.thumbProportion = derivedThumbProportion = thumbProportion;
this.thumbStart = derivedThumbStart = thumbStart;
}
@Override
boolean isDerivationSame() {
return super.isDerivationSame() && (thumbProportion == derivedThumbProportion) && (thumbStart == derivedThumbStart);
}
@Override
public <T extends JRSUIState> T createDerivation() {
return (T)new ScrollBarState(derivedEncodedState, derivedValue, derivedThumbProportion, derivedThumbStart);
}
@Override
public void reset() {
super.reset();
derivedThumbProportion = thumbProportion;
derivedThumbStart = thumbStart;
}
public void setThumbPercent(final double thumbPercent) {
derivedThumbProportion = thumbPercent;
}
public void setThumbStart(final double thumbStart) {
derivedThumbStart = thumbStart;
}
@Override
public void apply(final JRSUIControl control) {
super.apply(control);
control.set(Key.THUMB_PROPORTION, thumbProportion);
control.set(Key.THUMB_START, thumbStart);
}
@Override
public boolean equals(final Object obj) {
if (!(obj instanceof ScrollBarState)) return false;
return (thumbProportion == ((ScrollBarState)obj).thumbProportion) && (thumbStart == ((ScrollBarState)obj).thumbStart) && super.equals(obj);
}
@Override
public int hashCode() {
final long bits = Double.doubleToRawLongBits(thumbProportion) ^ Double.doubleToRawLongBits(thumbStart);
return super.hashCode() ^ (int)bits ^ (int)(bits >>> 32);
}
}
}