javafx.animation.FillTransition Maven / Gradle / Ivy
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/*
* Copyright (c) 2011, 2013, 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.
*
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*/
package javafx.animation;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.ObjectPropertyBase;
import javafx.beans.property.SimpleObjectProperty;
import javafx.scene.Node;
import javafx.scene.paint.Color;
import javafx.scene.shape.Shape;
import javafx.util.Duration;
/**
* This {@code Transition} creates an animation, that changes the filling of a
* shape over a {@code duration}. This is done by updating the {@code fill}
* variable of the {@code shape} at regular intervals.
*
* It starts from the {@code fromValue} if provided else uses the {@code shape}
* 's {@code fill} value. (The {@code stroke} value has to be a
* {@link javafx.scene.paint.Color} in this case).
*
* It stops at the {@code toValue} value.
*
*
* Code Segment Example:
*
*
*
*
* import javafx.scene.shape.*;
* import javafx.animation.transition.*;
*
* ...
*
* Rectangle rect = new Rectangle (100, 40, 100, 100);
* rect.setArcHeight(50);
* rect.setArcWidth(50);
*
* FillTransition ft = new FillTransition(Duration.millis(3000), rect, Color.RED, Color.BLUE);
* ft.setCycleCount(4);
* ft.setAutoReverse(true);
*
* ft.play();
*
* ...
*
*
*
*
* @see Transition
* @see Animation
*
* @since JavaFX 2.0
*/
public final class FillTransition extends Transition {
private Color start;
private Color end;
/**
* The target shape of this {@code FillTransition}.
*
* It is not possible to change the target {@code shape} of a running
* {@code FillTransition}. If the value of {@code shape} is changed for a
* running {@code FillTransition}, the animation has to be stopped and
* started again to pick up the new value.
*/
private ObjectProperty shape;
private static final Shape DEFAULT_SHAPE = null;
public final void setShape(Shape value) {
if ((shape != null) || (value != null /* DEFAULT_SHAPE */)) {
shapeProperty().set(value);
}
}
public final Shape getShape() {
return (shape == null)? DEFAULT_SHAPE : shape.get();
}
public final ObjectProperty shapeProperty() {
if (shape == null) {
shape = new SimpleObjectProperty(this, "shape", DEFAULT_SHAPE);
}
return shape;
}
private Shape cachedShape;
/**
* The duration of this {@code FillTransition}.
*
* It is not possible to change the {@code duration} of a running
* {@code FillTransition}. If the value of {@code duration} is changed for a
* running {@code FillTransition}, the animation has to be stopped and
* started again to pick up the new value.
*
* Note: While the unit of {@code duration} is a millisecond, the
* granularity depends on the underlying operating system and will in
* general be larger. For example animations on desktop systems usually run
* with a maximum of 60fps which gives a granularity of ~17 ms.
*
* Setting duration to value lower than {@link Duration#ZERO} will result
* in {@link IllegalArgumentException}.
*
* @defaultValue 400ms
*/
private ObjectProperty duration;
private static final Duration DEFAULT_DURATION = Duration.millis(400);
public final void setDuration(Duration value) {
if ((duration != null) || (!DEFAULT_DURATION.equals(value))) {
durationProperty().set(value);
}
}
public final Duration getDuration() {
return (duration == null)? DEFAULT_DURATION : duration.get();
}
public final ObjectProperty durationProperty() {
if (duration == null) {
duration = new ObjectPropertyBase(DEFAULT_DURATION) {
@Override
public void invalidated() {
try {
setCycleDuration(getDuration());
} catch (IllegalArgumentException e) {
if (isBound()) {
unbind();
}
set(getCycleDuration());
throw e;
}
}
@Override
public Object getBean() {
return FillTransition.this;
}
@Override
public String getName() {
return "duration";
}
};
}
return duration;
}
/**
* Specifies the start color value for this {@code FillTransition}.
*
* It is not possible to change {@code fromValue} of a running
* {@code FillTransition}. If the value of {@code fromValue} is changed for
* a running {@code FillTransition}, the animation has to be stopped and
* started again to pick up the new value.
*
* @defaultValue {@code null}
*/
private ObjectProperty fromValue;
private static final Color DEFAULT_FROM_VALUE = null;
public final void setFromValue(Color value) {
if ((fromValue != null) || (value != null /* DEFAULT_FROM_VALUE */)) {
fromValueProperty().set(value);
}
}
public final Color getFromValue() {
return (fromValue == null)? DEFAULT_FROM_VALUE : fromValue.get();
}
public final ObjectProperty fromValueProperty() {
if (fromValue == null) {
fromValue = new SimpleObjectProperty(this, "fromValue", DEFAULT_FROM_VALUE);
}
return fromValue;
}
/**
* Specifies the stop color value for this {@code FillTransition}.
*
* It is not possible to change {@code toValue} of a running
* {@code FillTransition}. If the value of {@code toValue} is changed for a
* running {@code FillTransition}, the animation has to be stopped and
* started again to pick up the new value.
*
* @defaultValue {@code null}
*/
private ObjectProperty toValue;
private static final Color DEFAULT_TO_VALUE = null;
public final void setToValue(Color value) {
if ((toValue != null) || (value != null /* DEFAULT_TO_VALUE */)) {
toValueProperty().set(value);
}
}
public final Color getToValue() {
return (toValue == null)? DEFAULT_TO_VALUE : toValue.get();
}
public final ObjectProperty toValueProperty() {
if (toValue == null) {
toValue = new SimpleObjectProperty(this, "toValue", DEFAULT_TO_VALUE);
}
return toValue;
}
/**
* The constructor of {@code FillTransition}
* @param duration The duration of the {@code FillTransition}
* @param shape The {@code shape} which filling will be animated
* @param fromValue The start value of the color-animation
* @param toValue The end value of the color-animation
*/
public FillTransition(Duration duration, Shape shape, Color fromValue,
Color toValue) {
setDuration(duration);
setShape(shape);
setFromValue(fromValue);
setToValue(toValue);
setCycleDuration(duration);
}
/**
* The constructor of {@code FillTransition}
* @param duration The duration of the {@code FillTransition}
* @param fromValue The start value of the color-animation
* @param toValue The end value of the color-animation
*/
public FillTransition(Duration duration, Color fromValue, Color toValue) {
this(duration, null, fromValue, toValue);
}
/**
* The constructor of {@code FillTransition}
*
* @param duration
* The duration of the {@code FillTransition}
* @param shape
* The {@code shape} which filling will be animated
*/
public FillTransition(Duration duration, Shape shape) {
this(duration, shape, null, null);
}
/**
* The constructor of {@code FillTransition}
*
* @param duration
* The duration of the {@code FadeTransition}
*/
public FillTransition(Duration duration) {
this(duration, null, null, null);
}
/**
* The constructor of {@code FillTransition}
*/
public FillTransition() {
this(DEFAULT_DURATION, null);
}
/**
* {@inheritDoc}
*/
@Override
protected void interpolate(double frac) {
final Color newColor = start.interpolate(end, frac);
cachedShape.setFill(newColor);
}
private Shape getTargetShape() {
Shape shape = getShape();
if (shape == null) {
final Node node = getParentTargetNode();
if (node instanceof Shape) {
shape = (Shape) node;
}
}
return shape;
}
@Override
boolean impl_startable(boolean forceSync) {
if (!super.impl_startable(forceSync)) {
return false;
}
// check if synchronization is not forced and cached values are valid
if (!forceSync && (cachedShape != null)) {
return true;
}
// we have to synchronize
final Shape shape = getTargetShape();
return ((shape != null) // shape is defined?
&& ((getFromValue() != null) || (shape.getFill() instanceof Color)) // fromValue
// defined
// or
// current
// fill
// is
// Color?
&& (getToValue() != null)); // toValue defined?
}
@Override
void impl_sync(boolean forceSync) {
super.impl_sync(forceSync);
if (forceSync || (cachedShape == null)) {
cachedShape = getTargetShape();
final Color _fromValue = getFromValue();
start = (_fromValue != null) ? _fromValue : (Color) cachedShape
.getFill();
end = getToValue();
}
}
}