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/*
 * Copyright (c) 2010, 2024, 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.scene.control;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javafx.beans.DefaultProperty;
import javafx.beans.binding.Bindings;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.ReadOnlyBooleanProperty;
import javafx.beans.property.ReadOnlyBooleanWrapper;
import javafx.beans.property.ReadOnlyObjectProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.WritableValue;
import javafx.css.CssMetaData;
import javafx.css.FontCssMetaData;
import javafx.css.StyleOrigin;
import javafx.css.Styleable;
import javafx.css.StyleableBooleanProperty;
import javafx.css.StyleableDoubleProperty;
import javafx.css.StyleableObjectProperty;
import javafx.css.StyleableProperty;
import javafx.css.StyleableStringProperty;
import javafx.css.converter.BooleanConverter;
import javafx.css.converter.EnumConverter;
import javafx.css.converter.InsetsConverter;
import javafx.css.converter.PaintConverter;
import javafx.css.converter.SizeConverter;
import javafx.css.converter.StringConverter;
import javafx.geometry.Insets;
import javafx.geometry.Orientation;
import javafx.geometry.Pos;
import javafx.scene.Node;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.paint.Color;
import javafx.scene.paint.Paint;
import javafx.scene.text.Font;
import javafx.scene.text.TextAlignment;
import com.sun.javafx.css.StyleManager;
import com.sun.javafx.scene.NodeHelper;
import com.sun.javafx.scene.control.LabeledHelper;

/**
 * A Labeled {@link Control} is one which has as part of its user interface
 * a textual content associated with it. For example, a {@link Button} displays
 * {@code text}, as does a {@link Label}, a {@link Tooltip}, and many
 * other controls.
 * 

* Labeled is also a convenient base class from which to extend when building * new Controls which, as part of their UI, display read-only textual content. *

* *

Example of how to place a graphic above the text: *


 *  Image image = new Image(getClass().getResourceAsStream("image.png"));
 *  ImageView imageView = new ImageView();
 *  imageView.setImage(image);
 *  Label label = new Label("text", imageView);
 *  label.setContentDisplay(ContentDisplay.TOP);
 * 
* * @see Button * @see Label * @see ToggleButton * @since JavaFX 2.0 */ @DefaultProperty("text") public abstract class Labeled extends Control { private final static String DEFAULT_ELLIPSIS_STRING = "..."; static { LabeledHelper.setAccessor(new LabeledHelper.Accessor() { @Override public void setTextTruncated(Labeled c, boolean on) { c.setTextTruncated(on); } }); } /* ************************************************************************* * * * Constructors * * * **************************************************************************/ /** * Creates a Label with no text and graphic */ public Labeled() { } /** * Creates a Label with text * @param text The text for the label. */ public Labeled(String text) { setText(text); } /** * Creates a Label with text and a graphic * @param text The text for the label. * @param graphic The graphic for the label. */ public Labeled(String text, Node graphic) { setText(text); ((StyleableProperty)(WritableValue)graphicProperty()).applyStyle(null, graphic); } /* ************************************************************************* * * * Properties * * * **************************************************************************/ /** * The text to display in the label. The text may be null. * * @return the text to display in the label * @defaultValue empty string */ public final StringProperty textProperty() { if (text == null) { text = new SimpleStringProperty(this, "text", ""); } return text; } private StringProperty text; public final void setText(String value) { textProperty().setValue(value); } public final String getText() { return text == null ? "" : text.getValue(); } /** * Specifies how the text and graphic within the Labeled should be * aligned when there is empty space within the Labeled. * * @return the alignment within this labeled * @defaultValue {@code Pos.CENTER_LEFT} */ public final ObjectProperty alignmentProperty() { if (alignment == null) { alignment = new StyleableObjectProperty(Pos.CENTER_LEFT) { @Override public CssMetaData getCssMetaData() { return StyleableProperties.ALIGNMENT; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "alignment"; } }; } return alignment; } private ObjectProperty alignment; public final void setAlignment(Pos value) { alignmentProperty().set(value); } public final Pos getAlignment() { return alignment == null ? Pos.CENTER_LEFT : alignment.get(); } /** * Specifies the behavior for lines of text when text is multiline. * Unlike {@link #contentDisplayProperty} which affects the graphic and text, this setting * only affects multiple lines of text relative to the text bounds. * * @return the alignment of lines of text within this labeled * @defaultValue {@code TextAlignment.LEFT} */ public final ObjectProperty textAlignmentProperty() { if (textAlignment == null) { textAlignment = new StyleableObjectProperty(TextAlignment.LEFT) { @Override public CssMetaData getCssMetaData() { return StyleableProperties.TEXT_ALIGNMENT; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "textAlignment"; } }; } return textAlignment; } private ObjectProperty textAlignment; public final void setTextAlignment(TextAlignment value) { textAlignmentProperty().setValue(value); } public final TextAlignment getTextAlignment() { return textAlignment == null ? TextAlignment.LEFT : textAlignment.getValue(); } /** * Specifies the behavior to use if the text of the {@code Labeled} * exceeds the available space for rendering the text. * * @return the overrun behavior if the text exceeds the available space * @defaultValue {@code OverrunStyle.ELLIPSIS} */ public final ObjectProperty textOverrunProperty() { if (textOverrun == null) { textOverrun = new StyleableObjectProperty(OverrunStyle.ELLIPSIS) { @Override public CssMetaData getCssMetaData() { return StyleableProperties.TEXT_OVERRUN; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "textOverrun"; } }; } return textOverrun; } private ObjectProperty textOverrun; public final void setTextOverrun(OverrunStyle value) { textOverrunProperty().setValue(value); } public final OverrunStyle getTextOverrun() { return textOverrun == null ? OverrunStyle.ELLIPSIS : textOverrun.getValue(); } /** * Specifies the string to display for the ellipsis when text is truncated. * * * * * * * * * *
Ellipsis Table
Examples
"..." Default value for most locales
" . . . "
" [...] "
"\u2026" The Unicode ellipsis character '…'
"" No ellipsis, just display the truncated string
* *

Note that not all fonts support all Unicode characters. * * @return the ellipsis property on the string to display for the ellipsis * when text is truncated * @see Wikipedia:ellipsis * @defaultValue {@code "..."} * @since JavaFX 2.2 */ public final StringProperty ellipsisStringProperty() { if (ellipsisString == null) { ellipsisString = new StyleableStringProperty(DEFAULT_ELLIPSIS_STRING) { @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "ellipsisString"; } @Override public CssMetaData getCssMetaData() { return StyleableProperties.ELLIPSIS_STRING; } }; } return ellipsisString; } private StringProperty ellipsisString; public final void setEllipsisString(String value) { ellipsisStringProperty().set((value == null) ? "" : value); } public final String getEllipsisString() { return ellipsisString == null ? DEFAULT_ELLIPSIS_STRING : ellipsisString.get(); } /** * If a run of text exceeds the width of the Labeled, then this variable * indicates whether the text should wrap onto another line. * * @return the wrap property if a run of text exceeds the width of the Labeled * @defaultValue {@code false} */ public final BooleanProperty wrapTextProperty() { if (wrapText == null) { wrapText = new StyleableBooleanProperty() { @Override public CssMetaData getCssMetaData() { return StyleableProperties.WRAP_TEXT; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "wrapText"; } }; } return wrapText; } private BooleanProperty wrapText; public final void setWrapText(boolean value) { wrapTextProperty().setValue(value); } public final boolean isWrapText() { return wrapText == null ? false : wrapText.getValue(); } /** * If wrapText is true, then contentBias will be HORIZONTAL, otherwise it is null. * @return orientation of width/height dependency or null if there is none */ @Override public Orientation getContentBias() { return isWrapText()? Orientation.HORIZONTAL : null; } /** * The default font to use for text in the Labeled. If the Label's text is * rich text then this font may or may not be used depending on the font * information embedded in the rich text, but in any case where a default * font is required, this font will be used. * * @return the default font to use for text in this labeled * @defaultValue {@link Font#getDefault()} */ public final ObjectProperty fontProperty() { if (font == null) { font = new StyleableObjectProperty(Font.getDefault()) { private boolean fontSetByCss = false; @Override public void applyStyle(StyleOrigin newOrigin, Font value) { // // RT-20727 - if CSS is setting the font, then make sure invalidate doesn't call NodeHelper.reapplyCSS // try { // super.applyStyle calls set which might throw if value is bound. // Have to make sure fontSetByCss is reset. fontSetByCss = true; super.applyStyle(newOrigin, value); } catch(Exception e) { throw e; } finally { fontSetByCss = false; } } @Override public void set(Font value) { final Font oldValue = get(); if (value != null ? !value.equals(oldValue) : oldValue != null) { super.set(value); NodeHelper.recalculateRelativeSizeProperties(Labeled.this, value); } } @Override protected void invalidated() { // RT-20727 - if font is changed by calling setFont, then // css might need to be reapplied since font size affects // calculated values for styles with relative values if(fontSetByCss == false) { NodeHelper.reapplyCSS(Labeled.this); } } @Override public CssMetaData getCssMetaData() { return StyleableProperties.FONT; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "font"; } }; } return font; } private ObjectProperty font; public final void setFont(Font value) { fontProperty().setValue(value); } public final Font getFont() { return font == null ? Font.getDefault() : font.getValue(); } /** * An optional icon for the Labeled. This can be positioned relative to the * text by using {@link #setContentDisplay}. The node specified for this * variable cannot appear elsewhere in the scene graph, otherwise * the {@code IllegalArgumentException} is thrown. See the class * description of {@link Node} for more detail. * * @return the optional icon for this labeled * @defaultValue {@code null} */ public final ObjectProperty graphicProperty() { if (graphic == null) { graphic = new StyleableObjectProperty<>() { // The graphic is styleable by css, but it is the // imageUrlProperty that handles the style value. @Override public CssMetaData getCssMetaData() { return StyleableProperties.GRAPHIC; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "graphic"; } }; } return graphic; } private ObjectProperty graphic; public final void setGraphic(Node value) { graphicProperty().setValue(value); } public final Node getGraphic() { return graphic == null ? null : graphic.getValue(); } private StyleableStringProperty imageUrl = null; /** * The imageUrl property is set from CSS and then the graphic property is * set from the invalidated method. This ensures that the same image isn't * reloaded. */ private StyleableStringProperty imageUrlProperty() { if (imageUrl == null) { imageUrl = new StyleableStringProperty() { // // If imageUrlProperty is invalidated, this is the origin of the style that // triggered the invalidation. This is used in the invalidated() method where the // value of super.getStyleOrigin() is not valid until after the call to set(v) returns, // by which time invalidated will have been called. // This value is initialized to USER in case someone calls set on the imageUrlProperty, which // is possible: // CssMetaData metaData = ((StyleableProperty)labeled.graphicProperty()).getCssMetaData(); // StyleableProperty prop = metaData.getStyleableProperty(labeled); // prop.set(someUrl); // // TODO: Note that prop != labeled, which violates the contract between StyleableProperty and CssMetaData. // StyleOrigin origin = StyleOrigin.USER; @Override public void applyStyle(StyleOrigin origin, String v) { this.origin = origin; // Don't want applyStyle to throw an exception which would leave this.origin set to the wrong value if (graphic == null || graphic.isBound() == false) super.applyStyle(origin, v); // Origin is only valid for this invocation of applyStyle, so reset it to USER in case someone calls set. this.origin = StyleOrigin.USER; } @Override protected void invalidated() { // need to call super.get() here since get() is overridden to return the graphicProperty's value final String url = super.get(); if (url == null) { ((StyleableProperty)(WritableValue)graphicProperty()).applyStyle(origin, null); } else { // RT-34466 - if graphic's url is the same as this property's value, then don't overwrite. final Node graphicNode = Labeled.this.getGraphic(); if (graphicNode instanceof ImageView) { final ImageView imageView = (ImageView)graphicNode; final Image image = imageView.getImage(); if (image != null) { final String imageViewUrl = image.getUrl(); if (url.equals(imageViewUrl)) return; } } final Image img = StyleManager.getInstance().getCachedImage(url); if (img != null) { // // Note that it is tempting to try to re-use existing ImageView simply by setting // the image on the current ImageView, if there is one. This would effectively change // the image, but not the ImageView which means that no graphicProperty listeners would // be notified. This is probably not what we want. // // // Have to call applyStyle on graphicProperty so that the graphicProperty's // origin matches the imageUrlProperty's origin. // ((StyleableProperty)(WritableValue)graphicProperty()).applyStyle(origin, new ImageView(img)); } } } @Override public String get() { // // The value of the imageUrlProperty is that of the graphicProperty. // Return the value in a way that doesn't expand the graphicProperty. // final Node graphic = getGraphic(); if (graphic instanceof ImageView) { final Image image = ((ImageView)graphic).getImage(); if (image != null) { return image.getUrl(); } } return null; } @Override public StyleOrigin getStyleOrigin() { // // The origin of the imageUrlProperty is that of the graphicProperty. // Return the origin in a way that doesn't expand the graphicProperty. // return graphic != null ? ((StyleableProperty)(WritableValue)graphic).getStyleOrigin() : null; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "imageUrl"; } @Override public CssMetaData getCssMetaData() { return StyleableProperties.GRAPHIC; } }; } return imageUrl; } /** * Whether all text should be underlined. * * @return the underline property of all text in this labeled * @defaultValue {@code false} */ public final BooleanProperty underlineProperty() { if (underline == null) { underline = new StyleableBooleanProperty(false) { @Override public CssMetaData getCssMetaData() { return StyleableProperties.UNDERLINE; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "underline"; } }; } return underline; } private BooleanProperty underline; public final void setUnderline(boolean value) { underlineProperty().setValue(value); } public final boolean isUnderline() { return underline == null ? false : underline.getValue(); } /** * Specifies the space in pixel between lines. * * @return the line spacing property between lines in this labeled * @defaultValue 0 * @since JavaFX 8.0 */ public final DoubleProperty lineSpacingProperty() { if (lineSpacing == null) { lineSpacing = new StyleableDoubleProperty(0) { @Override public CssMetaData getCssMetaData() { return StyleableProperties.LINE_SPACING; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "lineSpacing"; } }; } return lineSpacing; } private DoubleProperty lineSpacing; public final void setLineSpacing(double value) { lineSpacingProperty().setValue(value); } public final double getLineSpacing() { return lineSpacing == null ? 0 : lineSpacing.getValue(); } /** * Specifies the positioning of the graphic relative to the text. * * @return content display property of this labeled * @defaultValue {@code ContentDisplay.LEFT} */ public final ObjectProperty contentDisplayProperty() { if (contentDisplay == null) { contentDisplay = new StyleableObjectProperty(ContentDisplay.LEFT) { @Override public CssMetaData getCssMetaData() { return StyleableProperties.CONTENT_DISPLAY; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "contentDisplay"; } }; } return contentDisplay; } private ObjectProperty contentDisplay; public final void setContentDisplay(ContentDisplay value) { contentDisplayProperty().setValue(value); } public final ContentDisplay getContentDisplay() { return contentDisplay == null ? ContentDisplay.LEFT : contentDisplay.getValue(); } /** * The padding around the Labeled's text and graphic content. * By default labelPadding is Insets.EMPTY and cannot be set to null. * Subclasses may add nodes outside this padding and inside the Labeled's padding. * * This property can only be set from CSS. * * @return the label padding property of this labeled * @defaultValue {@code Insets.EMPTY} */ public final ReadOnlyObjectProperty labelPaddingProperty() { return labelPaddingPropertyImpl(); } private ObjectProperty labelPaddingPropertyImpl() { if (labelPadding == null) { labelPadding = new StyleableObjectProperty(Insets.EMPTY) { private Insets lastValidValue = Insets.EMPTY; @Override public void invalidated() { final Insets newValue = get(); if (newValue == null) { set(lastValidValue); throw new NullPointerException("cannot set labelPadding to null"); } lastValidValue = newValue; requestLayout(); } @Override public CssMetaData getCssMetaData() { return StyleableProperties.LABEL_PADDING; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "labelPadding"; } }; } return labelPadding; } private ObjectProperty labelPadding; private void setLabelPadding(Insets value) { labelPaddingPropertyImpl().set(value); } public final Insets getLabelPadding() { return labelPadding == null ? Insets.EMPTY : labelPadding.get(); } /** * The amount of space between the graphic and text * * @return the graphics text gap property of this labeled * @defaultValue 4 */ public final DoubleProperty graphicTextGapProperty() { if (graphicTextGap == null) { graphicTextGap = new StyleableDoubleProperty(4) { @Override public CssMetaData getCssMetaData() { return StyleableProperties.GRAPHIC_TEXT_GAP; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "graphicTextGap"; } }; } return graphicTextGap; } private DoubleProperty graphicTextGap; public final void setGraphicTextGap(double value) { graphicTextGapProperty().setValue(value); } public final double getGraphicTextGap() { return graphicTextGap == null ? 4 : graphicTextGap.getValue(); } /** * The {@link Paint} used to fill the text. * * @defaultValue {@code Color.BLACK} */ private ObjectProperty textFill; // TODO for now change this public final void setTextFill(Paint value) { textFillProperty().set(value); } public final Paint getTextFill() { return textFill == null ? Color.BLACK : textFill.get(); } public final ObjectProperty textFillProperty() { if (textFill == null) { textFill = new StyleableObjectProperty(Color.BLACK) { @Override public CssMetaData getCssMetaData() { return StyleableProperties.TEXT_FILL; } @Override public Object getBean() { return Labeled.this; } @Override public String getName() { return "textFill"; } }; } return textFill; } /** * MnemonicParsing property to enable/disable text parsing. * If this is set to true, then the Label text will be * parsed to see if it contains the mnemonic parsing character '_'. * When a mnemonic is detected the key combination will * be determined based on the succeeding character, and the mnemonic * added. * * @defaultValue {@code false}; {@code true} for some {@code Control}s. */ private BooleanProperty mnemonicParsing; public final void setMnemonicParsing(boolean value) { mnemonicParsingProperty().set(value); } public final boolean isMnemonicParsing() { return mnemonicParsing == null ? false : mnemonicParsing.get(); } public final BooleanProperty mnemonicParsingProperty() { if (mnemonicParsing == null) { mnemonicParsing = new SimpleBooleanProperty(this, "mnemonicParsing"); } return mnemonicParsing; } /** * Indicates whether the text has been truncated * because it cannot fit into the available width. *

* When truncated, the {@link #ellipsisStringProperty() ellipsisString} * gets inserted in the place dictated by the * {@link #textOverrunProperty textOverrun} property. * * @since 23 */ private ReadOnlyBooleanWrapper textTruncated; public final ReadOnlyBooleanProperty textTruncatedProperty() { return textTruncated().getReadOnlyProperty(); } public final boolean isTextTruncated() { return textTruncated().get(); } private final void setTextTruncated(boolean on) { textTruncated().set(on); } private ReadOnlyBooleanWrapper textTruncated() { if (textTruncated == null) { textTruncated = new ReadOnlyBooleanWrapper(this, "textTruncated"); } return textTruncated; } @Override public String toString() { StringBuilder builder = new StringBuilder(super.toString()) .append("'").append(getText()).append("'"); return builder.toString(); } /* ************************************************************************* * * * Stylesheet Handling * * * **************************************************************************/ /** * Returns the initial alignment state of this control, for use * by the JavaFX CSS engine to correctly set its initial value. This method * is overridden to use Pos.CENTER_LEFT initially. * * @return the initial alignment state of this control * @since 9 */ protected Pos getInitialAlignment() { return Pos.CENTER_LEFT; } private static class StyleableProperties { private static final FontCssMetaData FONT = new FontCssMetaData<>("-fx-font", Font.getDefault()) { @Override public boolean isSettable(Labeled n) { return n.font == null || !n.font.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)(WritableValue)n.fontProperty(); } }; private static final CssMetaData ALIGNMENT = new CssMetaData<>("-fx-alignment", new EnumConverter<>(Pos.class), Pos.CENTER_LEFT ) { @Override public boolean isSettable(Labeled n) { return n.alignment == null || !n.alignment.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)(WritableValue)n.alignmentProperty(); } @Override public Pos getInitialValue(Labeled n) { return n.getInitialAlignment(); } }; private static final CssMetaData TEXT_ALIGNMENT = new CssMetaData<>("-fx-text-alignment", new EnumConverter<>(TextAlignment.class), TextAlignment.LEFT) { @Override public boolean isSettable(Labeled n) { return n.textAlignment == null || !n.textAlignment.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)(WritableValue)n.textAlignmentProperty(); } }; private static final CssMetaData TEXT_FILL = new CssMetaData<>("-fx-text-fill", PaintConverter.getInstance(), Color.BLACK) { @Override public boolean isSettable(Labeled n) { return n.textFill == null || !n.textFill.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)(WritableValue)n.textFillProperty(); } }; private static final CssMetaData TEXT_OVERRUN = new CssMetaData<>("-fx-text-overrun", new EnumConverter<>(OverrunStyle.class), OverrunStyle.ELLIPSIS) { @Override public boolean isSettable(Labeled n) { return n.textOverrun == null || !n.textOverrun.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)(WritableValue)n.textOverrunProperty(); } }; private static final CssMetaData ELLIPSIS_STRING = new CssMetaData<>("-fx-ellipsis-string", StringConverter.getInstance(), DEFAULT_ELLIPSIS_STRING) { @Override public boolean isSettable(Labeled n) { return n.ellipsisString == null || !n.ellipsisString.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)n.ellipsisStringProperty(); } }; private static final CssMetaData WRAP_TEXT = new CssMetaData<>("-fx-wrap-text", BooleanConverter.getInstance(), false) { @Override public boolean isSettable(Labeled n) { return n.wrapText == null || !n.wrapText.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)n.wrapTextProperty(); } }; private static final CssMetaData GRAPHIC = new CssMetaData<>("-fx-graphic", StringConverter.getInstance()) { @Override public boolean isSettable(Labeled n) { // Note that we care about the graphic, not imageUrl return n.graphic == null || !n.graphic.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return n.imageUrlProperty(); } }; private static final CssMetaData UNDERLINE = new CssMetaData<>("-fx-underline", BooleanConverter.getInstance(), Boolean.FALSE) { @Override public boolean isSettable(Labeled n) { return n.underline == null || !n.underline.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)n.underlineProperty(); } }; private static final CssMetaData LINE_SPACING = new CssMetaData<>("-fx-line-spacing", SizeConverter.getInstance(), 0) { @Override public boolean isSettable(Labeled n) { return n.lineSpacing == null || !n.lineSpacing.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)n.lineSpacingProperty(); } }; private static final CssMetaData CONTENT_DISPLAY = new CssMetaData<>("-fx-content-display", new EnumConverter<>(ContentDisplay.class), ContentDisplay.LEFT) { @Override public boolean isSettable(Labeled n) { return n.contentDisplay == null || !n.contentDisplay.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)(WritableValue)n.contentDisplayProperty(); } }; private static final CssMetaData LABEL_PADDING = new CssMetaData<>("-fx-label-padding", InsetsConverter.getInstance(), Insets.EMPTY) { @Override public boolean isSettable(Labeled n) { return n.labelPadding == null || !n.labelPadding.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)(WritableValue)n.labelPaddingPropertyImpl(); } }; private static final CssMetaData GRAPHIC_TEXT_GAP = new CssMetaData<>("-fx-graphic-text-gap", SizeConverter.getInstance(), 4.0) { @Override public boolean isSettable(Labeled n) { return n.graphicTextGap == null || !n.graphicTextGap.isBound(); } @Override public StyleableProperty getStyleableProperty(Labeled n) { return (StyleableProperty)n.graphicTextGapProperty(); } }; private static final List> STYLEABLES; static { final List> styleables = new ArrayList<>(Control.getClassCssMetaData()); Collections.addAll(styleables, FONT, ALIGNMENT, TEXT_ALIGNMENT, TEXT_FILL, TEXT_OVERRUN, ELLIPSIS_STRING, WRAP_TEXT, GRAPHIC, UNDERLINE, LINE_SPACING, CONTENT_DISPLAY, LABEL_PADDING, GRAPHIC_TEXT_GAP ); STYLEABLES = Collections.unmodifiableList(styleables); } } /** * Gets the {@code CssMetaData} associated with this class, which may include the * {@code CssMetaData} of its superclasses. * @return the {@code CssMetaData} * @since JavaFX 8.0 */ public static List> getClassCssMetaData() { return StyleableProperties.STYLEABLES; } /** * {@inheritDoc} * @since JavaFX 8.0 */ @Override public List> getControlCssMetaData() { return getClassCssMetaData(); } }