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com.sun.javafx.scene.control.skin.ProgressIndicatorSkin Maven / Gradle / Ivy
/*
* Copyright (c) 2010, 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.
*
* 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 com.sun.javafx.scene.control.skin;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.IntegerProperty;
import javafx.beans.property.ObjectProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.NodeOrientation;
import javafx.geometry.VPos;
import javafx.scene.Node;
import javafx.scene.control.ProgressIndicator;
import javafx.scene.control.SkinBase;
import javafx.scene.layout.Pane;
import javafx.scene.layout.Region;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.paint.Paint;
import javafx.scene.shape.Arc;
import javafx.scene.shape.ArcType;
import javafx.scene.shape.Circle;
import javafx.scene.text.Text;
import javafx.scene.transform.Scale;
import javafx.util.Duration;
import javafx.css.CssMetaData;
import javafx.css.StyleOrigin;
import javafx.css.StyleableObjectProperty;
import javafx.css.StyleableProperty;
import javafx.css.StyleableBooleanProperty;
import javafx.css.StyleableIntegerProperty;
import com.sun.javafx.css.converters.BooleanConverter;
import com.sun.javafx.css.converters.PaintConverter;
import com.sun.javafx.css.converters.SizeConverter;
import com.sun.javafx.scene.control.behavior.ProgressIndicatorBehavior;
import com.sun.javafx.scene.control.skin.resources.ControlResources;
import javafx.css.Styleable;
import javafx.geometry.Insets;
public class ProgressIndicatorSkin extends BehaviorSkinBase> {
/***************************************************************************
* *
* UI Subcomponents *
* *
**************************************************************************/
private static final String DONE = ControlResources.getString("ProgressIndicator.doneString");
/** doneText is just used to know the size of done as that is the biggest text we need to allow for */
private static final Text doneText = new Text(DONE);
static {
doneText.getStyleClass().add("text");
}
private IndeterminateSpinner spinner;
private DeterminateIndicator determinateIndicator;
private boolean timelineNulled = false;
/***************************************************************************
* *
* Constructors *
* *
**************************************************************************/
public ProgressIndicatorSkin(ProgressIndicator control) {
super(control, new ProgressIndicatorBehavior(control));
InvalidationListener indeterminateListener = new InvalidationListener() {
@Override public void invalidated(Observable valueModel) {
initialize();
}
};
control.indeterminateProperty().addListener(indeterminateListener);
InvalidationListener visibilityListener = new InvalidationListener() {
@Override public void invalidated(Observable valueModel) {
if (getSkinnable().isIndeterminate() && timelineNulled && spinner == null) {
timelineNulled = false;
spinner = new IndeterminateSpinner(getSkinnable(), ProgressIndicatorSkin.this, spinEnabled.get(), progressColor.get());
getChildren().add(spinner);
}
if (spinner != null) {
if (getSkinnable().impl_isTreeVisible() && getSkinnable().getScene() != null) {
spinner.indeterminateTimeline.play();
}
else {
spinner.indeterminateTimeline.pause();
getChildren().remove(spinner);
spinner = null;
timelineNulled = true;
}
}
}
};
control.visibleProperty().addListener(visibilityListener);
control.parentProperty().addListener(visibilityListener);
InvalidationListener sceneListener = new InvalidationListener() {
@Override public void invalidated(Observable valueModel) {
if (spinner != null) {
if (getSkinnable().getScene() == null) {
spinner.indeterminateTimeline.pause();
getChildren().remove(spinner);
spinner = null;
timelineNulled = true;
}
}
else {
if (getSkinnable().getScene() != null && getSkinnable().isIndeterminate()) {
timelineNulled = false;
spinner = new IndeterminateSpinner(getSkinnable(), ProgressIndicatorSkin.this, spinEnabled.get(), progressColor.get());
getChildren().add(spinner);
if (getSkinnable().impl_isTreeVisible()) {
spinner.indeterminateTimeline.play();
}
getSkinnable().requestLayout();
}
}
}
};
control.sceneProperty().addListener(sceneListener);
initialize();
getSkinnable().requestLayout();
}
private void initialize() {
ProgressIndicator control = getSkinnable();
boolean isIndeterminate = control.isIndeterminate();
if (isIndeterminate) {
// clean up determinateIndicator
determinateIndicator = null;
// create spinner
spinner = new IndeterminateSpinner(control, this, spinEnabled.get(), progressColor.get());
getChildren().clear();
getChildren().add(spinner);
if (getSkinnable().impl_isTreeVisible()) {
spinner.indeterminateTimeline.play();
}
} else {
// clean up after spinner
if (spinner != null) {
spinner.indeterminateTimeline.stop();
spinner = null;
}
// create determinateIndicator
determinateIndicator = new com.sun.javafx.scene.control.skin.ProgressIndicatorSkin.DeterminateIndicator(control, this, progressColor.get());
getChildren().clear();
getChildren().add(determinateIndicator);
}
}
@Override public void dispose() {
super.dispose();
if (spinner != null) {
spinner.indeterminateTimeline.stop();
spinner = null;
}
}
@Override protected void layoutChildren(final double x, final double y,
final double w, final double h) {
if (spinner != null && getSkinnable().isIndeterminate()) {
spinner.layoutChildren();
spinner.resizeRelocate(0, 0, w, h);
} else if (determinateIndicator != null) {
determinateIndicator.layoutChildren();
determinateIndicator.resizeRelocate(0, 0, w, h);
}
}
/***************************************************************************
* *
* DeterminateIndicator *
* *
**************************************************************************/
static class DeterminateIndicator extends Region {
private double textGap = 2.0F;
// only update progress text on whole percentages
private int intProgress;
// only update pie arc to nearest degree
private int degProgress;
private ProgressIndicator control;
private Text text;
private StackPane indicator;
private StackPane progress;
private StackPane tick;
private Arc arcShape;
private Circle indicatorCircle;
public DeterminateIndicator(ProgressIndicator control, ProgressIndicatorSkin s, Paint fillOverride) {
this.control = control;
getStyleClass().add("determinate-indicator");
intProgress = (int) Math.round(control.getProgress() * 100.0) ;
degProgress = (int) (360 * control.getProgress());
InvalidationListener progressListener = new InvalidationListener() {
@Override public void invalidated(Observable valueModel) {
updateProgress();
}
};
control.progressProperty().addListener(progressListener);
getChildren().clear();
text = new Text((control.getProgress() >= 1) ? (DONE) : ("" + intProgress + "%"));
text.setTextOrigin(VPos.TOP);
text.getStyleClass().setAll("text", "percentage");
// The circular background for the progress pie piece
indicator = new StackPane();
indicator.setScaleShape(false);
indicator.setCenterShape(false);
indicator.getStyleClass().setAll("indicator");
indicatorCircle = new Circle();
indicator.setShape(indicatorCircle);
// The shape for our progress pie piece
arcShape = new Arc();
arcShape.setType(ArcType.ROUND);
arcShape.setStartAngle(90.0F);
// Our progress pie piece
progress = new StackPane();
progress.getStyleClass().setAll("progress");
progress.setScaleShape(false);
progress.setCenterShape(false);
progress.setShape(arcShape);
progress.getChildren().clear();
setFillOverride(fillOverride);
// The check mark that's drawn at 100%
tick = new StackPane();
tick.getStyleClass().setAll("tick");
getChildren().setAll(indicator, progress, text, tick);
updateProgress();
}
private void setFillOverride(Paint fillOverride) {
if (fillOverride instanceof Color) {
Color c = (Color)fillOverride;
progress.setStyle("-fx-background-color: rgba("+((int)(255*c.getRed()))+","+((int)(255*c.getGreen()))+","+((int)(255*c.getBlue()))+","+c.getOpacity()+");");
} else {
progress.setStyle(null);
}
}
@Override public boolean usesMirroring() {
// This is used instead of setting NodeOrientation,
// allowing the Text node to inherit the current
// orientation.
return false;
}
private void updateProgress() {
intProgress = (int) Math.round(control.getProgress() * 100.0) ;
text.setText((control.getProgress() >= 1) ? (DONE) : ("" + intProgress + "%"));
degProgress = (int) (360 * control.getProgress());
arcShape.setLength(-degProgress);
requestLayout();
}
@Override protected void layoutChildren() {
// Position and size the circular background
double doneTextHeight = doneText.getLayoutBounds().getHeight();
final double left = control.snappedLeftInset();
final double right = control.snappedRightInset();
final double top = control.snappedTopInset();
final double bottom = control.snappedBottomInset();
/*
** use the min of width, or height, keep it a circle
*/
final double areaW = control.getWidth() - left - right;
final double areaH = control.getHeight() - top - bottom - textGap - doneTextHeight;
final double radiusW = areaW / 2;
final double radiusH = areaH / 2;
final double radius = Math.floor(Math.min(radiusW, radiusH));
final double centerX = snapPosition(left + radiusW);
final double centerY = snapPosition(top + radius);
// find radius that fits inside radius - insetsPadding
final double iLeft = indicator.snappedLeftInset();
final double iRight = indicator.snappedRightInset();
final double iTop = indicator.snappedTopInset();
final double iBottom = indicator.snappedBottomInset();
final double progressRadius = snapSize(Math.min(
Math.min(radius - iLeft, radius - iRight),
Math.min(radius - iTop, radius - iBottom)));
indicatorCircle.setRadius(radius);
indicator.setLayoutX(centerX);
indicator.setLayoutY(centerY);
arcShape.setRadiusX(progressRadius);
arcShape.setRadiusY(progressRadius);
progress.setLayoutX(centerX);
progress.setLayoutY(centerY);
// find radius that fits inside progressRadius - progressInsets
final double pLeft = progress.snappedLeftInset();
final double pRight = progress.snappedRightInset();
final double pTop = progress.snappedTopInset();
final double pBottom = progress.snappedBottomInset();
final double indicatorRadius = snapSize(Math.min(
Math.min(progressRadius - pLeft, progressRadius - pRight),
Math.min(progressRadius - pTop, progressRadius - pBottom)));
// find size of spare box that fits inside indicator radius
double squareBoxHalfWidth = Math.ceil(Math.sqrt((indicatorRadius * indicatorRadius) / 2));
double squareBoxHalfWidth2 = indicatorRadius * (Math.sqrt(2)/2);
tick.setLayoutX(centerX - squareBoxHalfWidth);
tick.setLayoutY(centerY - squareBoxHalfWidth);
tick.resize(squareBoxHalfWidth + squareBoxHalfWidth, squareBoxHalfWidth + squareBoxHalfWidth);
tick.setVisible(control.getProgress() >= 1);
// if the % text can't fit anywhere in the bounds then don't display it
double textWidth = text.getLayoutBounds().getWidth();
double textHeight = text.getLayoutBounds().getHeight();
if (control.getWidth() >= textWidth && control.getHeight() >= textHeight) {
if (!text.isVisible()) text.setVisible(true);
text.setLayoutY(snapPosition(centerY + radius + textGap));
text.setLayoutX(snapPosition(centerX - (textWidth/2)));
} else {
if (text.isVisible()) text.setVisible(false);
}
}
@Override protected double computePrefWidth(double height) {
final double left = control.snappedLeftInset();
final double right = control.snappedRightInset();
final double iLeft = indicator.snappedLeftInset();
final double iRight = indicator.snappedRightInset();
final double iTop = indicator.snappedTopInset();
final double iBottom = indicator.snappedBottomInset();
final double indicatorMax = snapSize(Math.max(Math.max(iLeft, iRight), Math.max(iTop, iBottom)));
final double pLeft = progress.snappedLeftInset();
final double pRight = progress.snappedRightInset();
final double pTop = progress.snappedTopInset();
final double pBottom = progress.snappedBottomInset();
final double progressMax = snapSize(Math.max(Math.max(pLeft, pRight), Math.max(pTop, pBottom)));
final double tLeft = tick.snappedLeftInset();
final double tRight = tick.snappedRightInset();
final double indicatorWidth = indicatorMax + progressMax + tLeft + tRight + progressMax + indicatorMax;
return left + Math.max(indicatorWidth, doneText.getLayoutBounds().getWidth()) + right;
}
@Override protected double computePrefHeight(double width) {
final double top = control.snappedTopInset();
final double bottom = control.snappedBottomInset();
final double iLeft = indicator.snappedLeftInset();
final double iRight = indicator.snappedRightInset();
final double iTop = indicator.snappedTopInset();
final double iBottom = indicator.snappedBottomInset();
final double indicatorMax = snapSize(Math.max(Math.max(iLeft, iRight), Math.max(iTop, iBottom)));
final double pLeft = progress.snappedLeftInset();
final double pRight = progress.snappedRightInset();
final double pTop = progress.snappedTopInset();
final double pBottom = progress.snappedBottomInset();
final double progressMax = snapSize(Math.max(Math.max(pLeft, pRight), Math.max(pTop, pBottom)));
final double tTop = tick.snappedTopInset();
final double tBottom = tick.snappedBottomInset();
final double indicatorHeight = indicatorMax + progressMax + tTop + tBottom + progressMax + indicatorMax;
return top + indicatorHeight + textGap + doneText.getLayoutBounds().getHeight() + bottom;
}
@Override protected double computeMaxWidth(double height) {
return computePrefWidth(height);
}
@Override protected double computeMaxHeight(double width) {
return computePrefHeight(width);
}
}
/***************************************************************************
* *
* IndeterminateSpinner *
* *
**************************************************************************/
static class IndeterminateSpinner extends Region {
private ProgressIndicator control;
private ProgressIndicatorSkin skin;
private IndicatorPaths pathsG;
private Timeline indeterminateTimeline;
private final List opacities = new ArrayList();
private boolean spinEnabled = false;
private Paint fillOverride = null;
public IndeterminateSpinner(ProgressIndicator control, ProgressIndicatorSkin s, boolean spinEnabled, Paint fillOverride) {
this.control = control;
this.skin = s;
this.spinEnabled = spinEnabled;
this.fillOverride = fillOverride;
setNodeOrientation(NodeOrientation.LEFT_TO_RIGHT);
getStyleClass().setAll("spinner");
pathsG = new IndicatorPaths(this);
getChildren().add(pathsG);
indeterminateTimeline = new Timeline();
indeterminateTimeline.setCycleCount(Timeline.INDEFINITE);
rebuildTimeline();
rebuild();
}
public void setFillOverride(Paint fillOverride) {
this.fillOverride = fillOverride;
rebuild();
}
public void setSpinEnabled(boolean spinEnabled) {
this.spinEnabled = spinEnabled;
rebuildTimeline();
}
private void rebuildTimeline() {
final ObservableList keyFrames = FXCollections.observableArrayList();
if(spinEnabled) {
keyFrames.add(new KeyFrame(Duration.millis(0), new KeyValue(pathsG.rotateProperty(), 360)));
keyFrames.add(new KeyFrame(Duration.millis(3900), new KeyValue(pathsG.rotateProperty(), 0)));
}
for (int i = 100; i <= 3900; i += 100) {
keyFrames.add(
new KeyFrame(
Duration.millis(i), new EventHandler() {
@Override public void handle(ActionEvent event) {
shiftColors();
}
}));
}
indeterminateTimeline.getKeyFrames().setAll(keyFrames);
}
private void pauseIndicator(boolean pause) {
if (indeterminateTimeline != null) {
if (pause) {
indeterminateTimeline.pause();
}
else {
indeterminateTimeline.play();
}
}
}
private class IndicatorPaths extends Pane {
IndeterminateSpinner piSkin;
IndicatorPaths(IndeterminateSpinner pi) {
super();
piSkin = pi;
InvalidationListener treeVisibilityListener = new InvalidationListener() {
@Override public void invalidated(Observable valueModel) {
if (piSkin.skin.getSkinnable().impl_isTreeVisible()) {
piSkin.pauseIndicator(false);
}
else {
piSkin.pauseIndicator(true);
}
}
};
impl_treeVisibleProperty().addListener(treeVisibilityListener);
}
@Override protected double computePrefWidth(double height) {
double w = 0;
for(Node child: getChildren()) {
if (child instanceof Region) {
Region region = (Region)child;
if (region.getShape() != null) {
w = Math.max(w,region.getShape().getLayoutBounds().getMaxX());
} else {
w = Math.max(w,region.prefWidth(height));
}
}
}
return w;
}
@Override protected double computePrefHeight(double width) {
double h = 0;
for(Node child: getChildren()) {
if (child instanceof Region) {
Region region = (Region)child;
if (region.getShape() != null) {
h = Math.max(h,region.getShape().getLayoutBounds().getMaxY());
} else {
h = Math.max(h,region.prefHeight(width));
}
}
}
return h;
}
@Override protected void layoutChildren() {
// calculate scale
double scale = getWidth() / computePrefWidth(-1);
for(Node child: getChildren()) {
if (child instanceof Region) {
Region region = (Region)child;
if (region.getShape() != null) {
region.resize(
region.getShape().getLayoutBounds().getMaxX(),
region.getShape().getLayoutBounds().getMaxY()
);
region.getTransforms().setAll(new Scale(scale,scale,0,0));
} else {
region.autosize();
}
}
}
}
}
@Override protected void layoutChildren() {
final double w = control.getWidth() - control.snappedLeftInset() - control.snappedRightInset();
final double h = control.getHeight() - control.snappedTopInset() - control.snappedBottomInset();
final double prefW = pathsG.prefWidth(-1);
final double prefH = pathsG.prefHeight(-1);
double scaleX = w / prefW;
double scale = scaleX;
if ((scaleX * prefH) > h) {
scale = h / prefH;
}
double indicatorW = prefW * scale;
double indicatorH = prefH * scale;
pathsG.resizeRelocate((w - indicatorW) / 2, (h - indicatorH) / 2, indicatorW, indicatorH);
}
private void rebuild() {
// update indeterminate indicator
final int segments = skin.indeterminateSegmentCount.get();
opacities.clear();
pathsG.getChildren().clear();
final double step = 0.8/(segments-1);
for (int i = 0; i < segments; i++) {
Region region = new Region();
region.setScaleShape(false);
region.setCenterShape(false);
region.getStyleClass().addAll("segment", "segment" + i);
if (fillOverride instanceof Color) {
Color c = (Color)fillOverride;
region.setStyle("-fx-background-color: rgba("+((int)(255*c.getRed()))+","+((int)(255*c.getGreen()))+","+((int)(255*c.getBlue()))+","+c.getOpacity()+");");
} else {
region.setStyle(null);
}
pathsG.getChildren().add(region);
opacities.add(Math.min(1, 0.2 + (i * step)));
}
}
private void shiftColors() {
if (opacities.size() <= 0) return;
final int segments = skin.indeterminateSegmentCount.get();
Collections.rotate(opacities, -1);
for (int i = 0; i < segments; i++) {
pathsG.getChildren().get(i).setOpacity(opacities.get(i));
}
}
}
public Paint getProgressColor() {
return progressColor.get();
}
/**
* The colour of the progress segment.
*/
private ObjectProperty progressColor =
new StyleableObjectProperty(null) {
@Override public void set(Paint newProgressColor) {
final Paint color = (newProgressColor instanceof Color)
? newProgressColor
: null;
super.set(color);
}
@Override protected void invalidated() {
if (spinner!=null) spinner.setFillOverride(get());
if (determinateIndicator!=null) determinateIndicator.setFillOverride(get());
}
@Override public Object getBean() {
return ProgressIndicatorSkin.this;
}
@Override public String getName() {
return "progressColorProperty";
}
@Override public CssMetaData getCssMetaData() {
return StyleableProperties.PROGRESS_COLOR;
}
};
/**
* The number of segments in the spinner.
*/
private IntegerProperty indeterminateSegmentCount =
new StyleableIntegerProperty(8) {
@Override protected void invalidated() {
if (spinner!=null) spinner.rebuild();
}
@Override public Object getBean() {
return ProgressIndicatorSkin.this;
}
@Override public String getName() {
return "indeterminateSegmentCount";
}
@Override public CssMetaData getCssMetaData() {
return StyleableProperties.INDETERMINATE_SEGMENT_COUNT;
}
};
/**
* True if the progress indicator should rotate as well as animate opacity.
*/
private final BooleanProperty spinEnabled = new StyleableBooleanProperty(false) {
@Override protected void invalidated() {
if (spinner!=null) spinner.setSpinEnabled(get());
}
@Override public CssMetaData getCssMetaData() {
return StyleableProperties.SPIN_ENABLED;
}
@Override public Object getBean() {
return ProgressIndicatorSkin.this;
}
@Override public String getName() {
return "spinEnabled";
}
};
// *********** Stylesheet Handling *****************************************
/**
* Super-lazy instantiation pattern from Bill Pugh.
* @treatAsPrivate implementation detail
*/
private static class StyleableProperties {
private static final CssMetaData PROGRESS_COLOR =
new CssMetaData("-fx-progress-color",
PaintConverter.getInstance(), null) {
@Override
public boolean isSettable(ProgressIndicator n) {
final ProgressIndicatorSkin skin = (ProgressIndicatorSkin) n.getSkin();
return skin.progressColor == null ||
!skin.progressColor.isBound();
}
@Override
public StyleableProperty getStyleableProperty(ProgressIndicator n) {
final ProgressIndicatorSkin skin = (ProgressIndicatorSkin) n.getSkin();
return (StyleableProperty)skin.progressColor;
}
};
private static final CssMetaData INDETERMINATE_SEGMENT_COUNT =
new CssMetaData("-fx-indeterminate-segment-count",
SizeConverter.getInstance(), 8) {
@Override public boolean isSettable(ProgressIndicator n) {
final ProgressIndicatorSkin skin = (ProgressIndicatorSkin) n.getSkin();
return skin.indeterminateSegmentCount == null ||
!skin.indeterminateSegmentCount.isBound();
}
@Override public StyleableProperty getStyleableProperty(ProgressIndicator n) {
final ProgressIndicatorSkin skin = (ProgressIndicatorSkin) n.getSkin();
return (StyleableProperty)skin.indeterminateSegmentCount;
}
};
private static final CssMetaData SPIN_ENABLED =
new CssMetaData("-fx-spin-enabled",
BooleanConverter.getInstance(), Boolean.FALSE) {
@Override public boolean isSettable(ProgressIndicator node) {
final ProgressIndicatorSkin skin = (ProgressIndicatorSkin) node.getSkin();
return skin.spinEnabled == null || !skin.spinEnabled.isBound();
}
@Override public StyleableProperty getStyleableProperty(ProgressIndicator node) {
final ProgressIndicatorSkin skin = (ProgressIndicatorSkin) node.getSkin();
return (StyleableProperty)skin.spinEnabled;
}
};
public static final List> STYLEABLES;
static {
final List> styleables =
new ArrayList>(SkinBase.getClassCssMetaData());
styleables.add(PROGRESS_COLOR);
styleables.add(INDETERMINATE_SEGMENT_COUNT);
styleables.add(SPIN_ENABLED);
STYLEABLES = Collections.unmodifiableList(styleables);
}
}
/**
* @return The CssMetaData associated with this class, which may include the
* CssMetaData of its super classes.
*/
public static List> getClassCssMetaData() {
return StyleableProperties.STYLEABLES;
}
/**
* {@inheritDoc}
*/
@Override
public List> getCssMetaData() {
return getClassCssMetaData();
}
}