Module javafx.controls
Package javafx.scene.control

Class Tooltip

java.lang.Object
javafx.stage.Window
javafx.stage.PopupWindow
javafx.scene.control.PopupControl
javafx.scene.control.Tooltip
All Implemented Interfaces:
Styleable, EventTarget, Skinnable
@IDProperty("id")
public class Tooltip
extends PopupControl
Tooltips are common UI elements which are typically used for showing additional information about a Node in the scenegraph when the Node is hovered over by the mouse. Any Node can show a tooltip. In most cases a Tooltip is created and its text property is modified to show plain text to the user. However, a Tooltip is able to show within it an arbitrary scenegraph of nodes - this is done by creating the scenegraph and setting it inside the Tooltip graphic property.

You use the following approach to set a Tooltip on any node: 

 Rectangle rect = new Rectangle(0, 0, 100, 100);
 Tooltip t = new Tooltip("A Square");
 Tooltip.install(rect, t);
This tooltip will then participate with the typical tooltip semantics (i.e. appearing on hover, etc). Note that the Tooltip does not have to be uninstalled: it will be garbage collected when it is not referenced by any Node. It is possible to manually uninstall the tooltip, however.

A single tooltip can be installed on multiple target nodes or multiple controls.

Because most Tooltips are shown on UI controls, there is special API for all controls to make installing a Tooltip less verbose. The example below shows how to create a tooltip for a Button control: 

 Button button = new Button("Hover Over Me");
 button.setTooltip(new Tooltip("Tooltip for Button"));
Image of the Tooltip control
Since:
JavaFX 2.0

  • Property Details

  • Constructor Details

    • Tooltip

      public Tooltip()
      Creates a tooltip with an empty string for its text.

    • Tooltip

      public Tooltip​(String text)
      Creates a tooltip with the specified text.
      Parameters:
      text - A text string for the tooltip.

  • Method Details

    • install

      public static void install​(Node node, Tooltip t)
      Associates the given Tooltip with the given Node. The tooltip can then behave similar to when it is set on any Control. A single tooltip can be associated with multiple nodes.
      Parameters:
      node - the node
      t - the tooltip
      See Also:
      Tooltip

    • uninstall

      public static void uninstall​(Node node, Tooltip t)
      Removes the association of the given Tooltip on the specified Node. Hence hovering on the node will no longer result in showing of the tooltip.
      Parameters:
      node - the node
      t - the tooltip
      See Also:
      Tooltip

    • textProperty

      public final StringProperty textProperty()
      The text to display in the tooltip. If the text is set to null, an empty string will be displayed, despite the value being null.
      See Also:
      getText(), setText(String)

    • setText

      public final void setText​(String value)
      Sets the value of the property text.
      Property description:
      The text to display in the tooltip. If the text is set to null, an empty string will be displayed, despite the value being null.

    • getText

      public final String getText()
      Gets the value of the property text.
      Property description:
      The text to display in the tooltip. If the text is set to null, an empty string will be displayed, despite the value being null.

    • textAlignmentProperty

      public final ObjectProperty<TextAlignment> textAlignmentProperty()
      Specifies the behavior for lines of text when text is multiline. Unlike contentDisplay which affects the graphic and text, this setting only affects multiple lines of text relative to the text bounds.
      See Also:
      getTextAlignment(), setTextAlignment(TextAlignment)

    • setTextAlignment

      public final void setTextAlignment​(TextAlignment value)
      Sets the value of the property textAlignment.
      Property description:
      Specifies the behavior for lines of text when text is multiline. Unlike contentDisplay which affects the graphic and text, this setting only affects multiple lines of text relative to the text bounds.

    • getTextAlignment

      public final TextAlignment getTextAlignment()
      Gets the value of the property textAlignment.
      Property description:
      Specifies the behavior for lines of text when text is multiline. Unlike contentDisplay which affects the graphic and text, this setting only affects multiple lines of text relative to the text bounds.

    • textOverrunProperty

      public final ObjectProperty<OverrunStyle> textOverrunProperty()
      Specifies the behavior to use if the text of the Tooltip exceeds the available space for rendering the text.
      See Also:
      getTextOverrun(), setTextOverrun(OverrunStyle)

    • setTextOverrun

      public final void setTextOverrun​(OverrunStyle value)
      Sets the value of the property textOverrun.
      Property description:
      Specifies the behavior to use if the text of the Tooltip exceeds the available space for rendering the text.

    • getTextOverrun

      public final OverrunStyle getTextOverrun()
      Gets the value of the property textOverrun.
      Property description:
      Specifies the behavior to use if the text of the Tooltip exceeds the available space for rendering the text.

    • wrapTextProperty

      public final BooleanProperty wrapTextProperty()
      If a run of text exceeds the width of the Tooltip, then this variable indicates whether the text should wrap onto another line.
      See Also:
      isWrapText(), setWrapText(boolean)

    • setWrapText

      public final void setWrapText​(boolean value)
      Sets the value of the property wrapText.
      Property description:
      If a run of text exceeds the width of the Tooltip, then this variable indicates whether the text should wrap onto another line.

    • isWrapText

      public final boolean isWrapText()
      Gets the value of the property wrapText.
      Property description:
      If a run of text exceeds the width of the Tooltip, then this variable indicates whether the text should wrap onto another line.

    • fontProperty

      public final ObjectProperty<Font> fontProperty()
      The default font to use for text in the Tooltip. If the Tooltip'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.
      See Also:
      getFont(), setFont(Font)

    • setFont

      public final void setFont​(Font value)
      Sets the value of the property font.
      Property description:
      The default font to use for text in the Tooltip. If the Tooltip'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.

    • getFont

      public final Font getFont()
      Gets the value of the property font.
      Property description:
      The default font to use for text in the Tooltip. If the Tooltip'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.

    • showDelayProperty

      public final ObjectProperty<Duration> showDelayProperty()
      The delay between the mouse entering the hovered node and when the associated tooltip will be shown to the user. The default delay is 1000ms.
      Default value:
      1000ms
      Since:
      9
      See Also:
      getShowDelay(), setShowDelay(Duration)

    • setShowDelay

      public final void setShowDelay​(Duration showDelay)
      Sets the value of the property showDelay.
      Property description:
      The delay between the mouse entering the hovered node and when the associated tooltip will be shown to the user. The default delay is 1000ms.
      Default value:
      1000ms
      Since:
      9

    • getShowDelay

      public final Duration getShowDelay()
      Gets the value of the property showDelay.
      Property description:
      The delay between the mouse entering the hovered node and when the associated tooltip will be shown to the user. The default delay is 1000ms.
      Default value:
      1000ms
      Since:
      9

    • showDurationProperty

      public final ObjectProperty<Duration> showDurationProperty()
      The duration that the tooltip should remain showing for until it is no longer visible to the user. If the mouse leaves the control before the showDuration finishes, then the tooltip will remain showing for the duration specified in the hideDelayProperty(), even if the remaining time of the showDuration is less than the hideDelay duration. The default value is 5000ms.
      Default value:
      5000ms
      Since:
      9
      See Also:
      getShowDuration(), setShowDuration(Duration)

    • setShowDuration

      public final void setShowDuration​(Duration showDuration)
      Sets the value of the property showDuration.
      Property description:
      The duration that the tooltip should remain showing for until it is no longer visible to the user. If the mouse leaves the control before the showDuration finishes, then the tooltip will remain showing for the duration specified in the hideDelayProperty(), even if the remaining time of the showDuration is less than the hideDelay duration. The default value is 5000ms.
      Default value:
      5000ms
      Since:
      9

    • getShowDuration

      public final Duration getShowDuration()
      Gets the value of the property showDuration.
      Property description:
      The duration that the tooltip should remain showing for until it is no longer visible to the user. If the mouse leaves the control before the showDuration finishes, then the tooltip will remain showing for the duration specified in the hideDelayProperty(), even if the remaining time of the showDuration is less than the hideDelay duration. The default value is 5000ms.
      Default value:
      5000ms
      Since:
      9

    • hideDelayProperty

      public final ObjectProperty<Duration> hideDelayProperty()
      The duration in which to continue showing the tooltip after the mouse has left the node. Once this time has elapsed the tooltip will hide. The default value is 200ms.
      Default value:
      200ms
      Since:
      9
      See Also:
      getHideDelay(), setHideDelay(Duration)

    • setHideDelay

      public final void setHideDelay​(Duration hideDelay)
      Sets the value of the property hideDelay.
      Property description:
      The duration in which to continue showing the tooltip after the mouse has left the node. Once this time has elapsed the tooltip will hide. The default value is 200ms.
      Default value:
      200ms
      Since:
      9

    • getHideDelay

      public final Duration getHideDelay()
      Gets the value of the property hideDelay.
      Property description:
      The duration in which to continue showing the tooltip after the mouse has left the node. Once this time has elapsed the tooltip will hide. The default value is 200ms.
      Default value:
      200ms
      Since:
      9

    • graphicProperty

      public final ObjectProperty<Node> graphicProperty()
      An optional icon for the Tooltip. This can be positioned relative to the text by using the content display property. The node specified for this variable cannot appear elsewhere in the scene graph, otherwise the IllegalArgumentException is thrown. See the class description of Node for more detail.
      See Also:
      getGraphic(), setGraphic(Node)

    • setGraphic

      public final void setGraphic​(Node value)
      Sets the value of the property graphic.
      Property description:
      An optional icon for the Tooltip. This can be positioned relative to the text by using the content display property. The node specified for this variable cannot appear elsewhere in the scene graph, otherwise the IllegalArgumentException is thrown. See the class description of Node for more detail.

    • getGraphic

      public final Node getGraphic()
      Gets the value of the property graphic.
      Property description:
      An optional icon for the Tooltip. This can be positioned relative to the text by using the content display property. The node specified for this variable cannot appear elsewhere in the scene graph, otherwise the IllegalArgumentException is thrown. See the class description of Node for more detail.

    • contentDisplayProperty

      public final ObjectProperty<ContentDisplay> contentDisplayProperty()
      Specifies the positioning of the graphic relative to the text.
      See Also:
      getContentDisplay(), setContentDisplay(ContentDisplay)

    • setContentDisplay

      public final void setContentDisplay​(ContentDisplay value)
      Sets the value of the property contentDisplay.
      Property description:
      Specifies the positioning of the graphic relative to the text.

    • getContentDisplay

      public final ContentDisplay getContentDisplay()
      Gets the value of the property contentDisplay.
      Property description:
      Specifies the positioning of the graphic relative to the text.

    • graphicTextGapProperty

      public final DoubleProperty graphicTextGapProperty()
      The amount of space between the graphic and text
      See Also:
      getGraphicTextGap(), setGraphicTextGap(double)

    • setGraphicTextGap

      public final void setGraphicTextGap​(double value)
      Sets the value of the property graphicTextGap.
      Property description:
      The amount of space between the graphic and text

    • getGraphicTextGap

      public final double getGraphicTextGap()
      Gets the value of the property graphicTextGap.
      Property description:
      The amount of space between the graphic and text

    • isActivated

      public final boolean isActivated()
      Gets the value of the property activated.
      Property description:
      Typically, the tooltip is "activated" when the mouse moves over a Control. There is usually some delay between when the Tooltip becomes "activated" and when it is actually shown. The details (such as the amount of delay, etc) is left to the Skin implementation.

    • activatedProperty

      public final ReadOnlyBooleanProperty activatedProperty()
      Typically, the tooltip is "activated" when the mouse moves over a Control. There is usually some delay between when the Tooltip becomes "activated" and when it is actually shown. The details (such as the amount of delay, etc) is left to the Skin implementation.
      See Also:
      isActivated()

    • createDefaultSkin

      protected Skin<?> createDefaultSkin()
      Create a new instance of the default skin for this control. This is called to create a skin for the control if no skin is provided via CSS -fx-skin or set explicitly in a sub-class with setSkin(...).
      Overrides:
      createDefaultSkin in class PopupControl
      Returns:
      new instance of default skin for this control. If null then the control will have no skin unless one is provided by css.

    • getClassCssMetaData

      public static List<CssMetaData<? extends Styleable,​?>> getClassCssMetaData()
      Returns:
      The CssMetaData associated with this class, which may include the CssMetaData of its superclasses.
      Since:
      JavaFX 8.0

    • getCssMetaData

      public List<CssMetaData<? extends Styleable,​?>> getCssMetaData()
      The CssMetaData of this Styleable. This may be returned as an unmodifiable list.
      Specified by:
      getCssMetaData in interface Styleable
      Overrides:
      getCssMetaData in class PopupControl
      Returns:
      the CssMetaData
      Since:
      JavaFX 8.0

    • getStyleableParent

      public Styleable getStyleableParent()
      Description copied from class: PopupControl
      Return the parent of this Styleable, or null if there is no parent. A PopupControl's styles are based on the popup "owner" which is the ownerNode or, if the ownerNode is not set, the root of the ownerWindow's scene. If the popup has not been shown, both ownerNode and ownerWindow will be null and null will be returned. Note that the PopupWindow's scene root is not returned because there is no way to guarantee that the PopupWindow's scene root would properly return the ownerNode or ownerWindow.
      Specified by:
      getStyleableParent in interface Styleable
      Overrides:
      getStyleableParent in class PopupControl
      Returns:
      PopupWindow.getOwnerNode(), PopupWindow.getOwnerWindow(), or null.