Module javafx.graphics
Package javafx.scene.layout

Class RowConstraints

java.lang.Object
javafx.scene.layout.ConstraintsBase
javafx.scene.layout.RowConstraints
public class RowConstraints extends ConstraintsBase
Defines optional layout constraints for a row in a GridPane. If a RowConstraints object is added for a row in a gridpane, the gridpane will use those constraint values when computing the row's height and layout.

For example, to create a GridPane with 10 rows 50 pixels tall: 


     GridPane gridpane = new GridPane();
     for (int i = 0; i < 10; i++) {
         RowConstraints row = new RowConstraints(50);
         gridpane.getRowConstraints().add(row);
     }
Or, to create a GridPane where rows take 25%, 50%, 25% of its height: 

     GridPane gridpane = new GridPane();
     RowConstraints row1 = new RowConstraints();
     row1.setPercentHeight(25);
     RowConstraints row2 = new RowConstraints();
     row2.setPercentHeight(50);
     RowConstraints row3 = new RowConstraints();
     row3.setPercentHeight(25);
     gridpane.getRowConstraints().addAll(row1,row2,row3);
Note that adding an empty RowConstraints object has the effect of not setting any constraints, leaving the GridPane to compute the row's layout based solely on its content's size preferences and constraints.
Since:
JavaFX 2.0

  • Property Details

    • minHeight

      public final DoubleProperty minHeightProperty
      The minimum height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the minimum height will be computed to be the largest minimum height of the row's content.

      See Also:

    • prefHeight

      public final DoubleProperty prefHeightProperty
      The preferred height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the preferred height will be computed to be the largest preferred height of the row's content.

      See Also:

    • maxHeight

      public final DoubleProperty maxHeightProperty
      The maximum height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the maximum height will be computed to be the smallest maximum height of the row's content.

      See Also:

    • percentHeight

      public final DoubleProperty percentHeightProperty
      The height percentage of the row. If set to a value greater than 0, the row will be resized to that percentage of the available gridpane height and the other size constraints (minHeight, prefHeight, maxHeight, vgrow) will be ignored. The default value is -1, which means the percentage will be ignored.
      See Also:

    • vgrow

      public final ObjectProperty<Priority> vgrowProperty
      The vertical grow priority for the row. If set, the gridpane will use this priority to determine whether the row should be given any additional height if the gridpane is resized larger than its preferred height. This property is ignored if percentHeight is set.

      This default value is null, which means that the row's grow priority will be derived from largest grow priority set on a content node.

      See Also:

    • valignment

      public final ObjectProperty<VPos> valignmentProperty
      The vertical alignment for the row. If set, will be the default vertical alignment for nodes contained within the row. If this property is set to VPos.BASELINE, then the fillHeight property will be ignored and nodes will always be resized to their preferred heights.
      See Also:

    • fillHeight

      public final BooleanProperty fillHeightProperty
      The vertical fill policy for the row. The gridpane will use this property to determine whether nodes contained within the row should be expanded to fill the row's height or kept to their preferred heights.

      The default value is true.

      See Also:

  • Constructor Details

    • RowConstraints

      public RowConstraints()
      Creates a row constraints object with no properties set.

    • RowConstraints

      public RowConstraints(double height)
      Creates a row constraint object with a fixed height. This is a convenience for setting the preferred height constraint to the fixed value and the minHeight and maxHeight constraints to the USE_PREF_SIZE flag to ensure the row is always that height.
      Parameters:
      height - the height of the row

    • RowConstraints

      public RowConstraints(double minHeight, double prefHeight, double maxHeight)
      Creates a row constraint object with a fixed size range. This is a convenience for setting the minimum, preferred, and maximum height constraints.
      Parameters:
      minHeight - the minimum height
      prefHeight - the preferred height
      maxHeight - the maximum height

    • RowConstraints

      public RowConstraints(double minHeight, double prefHeight, double maxHeight, Priority vgrow, VPos valignment, boolean fillHeight)
      Creates a row constraint object with a fixed size range, vertical grow priority, vertical alignment, and vertical fill behavior.
      Parameters:
      minHeight - the minimum height
      prefHeight - the preferred height
      maxHeight - the maximum height
      vgrow - the vertical grow priority
      valignment - the vertical alignment
      fillHeight - the vertical fill behavior

  • Method Details

    • setMinHeight

      public final void setMinHeight(double value)
      Sets the value of the minHeight property.
      Property description:
      The minimum height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the minimum height will be computed to be the largest minimum height of the row's content.

      Parameters:
      value - the value for the minHeight property
      See Also:

    • getMinHeight

      public final double getMinHeight()
      Gets the value of the minHeight property.
      Property description:
      The minimum height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the minimum height will be computed to be the largest minimum height of the row's content.

      Returns:
      the value of the minHeight property
      See Also:

    • minHeightProperty

      public final DoubleProperty minHeightProperty()
      The minimum height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the minimum height will be computed to be the largest minimum height of the row's content.

      Returns:
      the minHeight property
      See Also:

    • setPrefHeight

      public final void setPrefHeight(double value)
      Sets the value of the prefHeight property.
      Property description:
      The preferred height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the preferred height will be computed to be the largest preferred height of the row's content.

      Parameters:
      value - the value for the prefHeight property
      See Also:

    • getPrefHeight

      public final double getPrefHeight()
      Gets the value of the prefHeight property.
      Property description:
      The preferred height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the preferred height will be computed to be the largest preferred height of the row's content.

      Returns:
      the value of the prefHeight property
      See Also:

    • prefHeightProperty

      public final DoubleProperty prefHeightProperty()
      The preferred height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the preferred height will be computed to be the largest preferred height of the row's content.

      Returns:
      the prefHeight property
      See Also:

    • setMaxHeight

      public final void setMaxHeight(double value)
      Sets the value of the maxHeight property.
      Property description:
      The maximum height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the maximum height will be computed to be the smallest maximum height of the row's content.

      Parameters:
      value - the value for the maxHeight property
      See Also:

    • getMaxHeight

      public final double getMaxHeight()
      Gets the value of the maxHeight property.
      Property description:
      The maximum height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the maximum height will be computed to be the smallest maximum height of the row's content.

      Returns:
      the value of the maxHeight property
      See Also:

    • maxHeightProperty

      public final DoubleProperty maxHeightProperty()
      The maximum height for the row. This property is ignored if percentHeight is set.

      The default value is USE_COMPUTED_SIZE, which means the maximum height will be computed to be the smallest maximum height of the row's content.

      Returns:
      the maxHeight property
      See Also:

    • setPercentHeight

      public final void setPercentHeight(double value)
      Sets the value of the percentHeight property.
      Property description:
      The height percentage of the row. If set to a value greater than 0, the row will be resized to that percentage of the available gridpane height and the other size constraints (minHeight, prefHeight, maxHeight, vgrow) will be ignored. The default value is -1, which means the percentage will be ignored.
      Parameters:
      value - the value for the percentHeight property
      See Also:

    • getPercentHeight

      public final double getPercentHeight()
      Gets the value of the percentHeight property.
      Property description:
      The height percentage of the row. If set to a value greater than 0, the row will be resized to that percentage of the available gridpane height and the other size constraints (minHeight, prefHeight, maxHeight, vgrow) will be ignored. The default value is -1, which means the percentage will be ignored.
      Returns:
      the value of the percentHeight property
      See Also:

    • percentHeightProperty

      public final DoubleProperty percentHeightProperty()
      The height percentage of the row. If set to a value greater than 0, the row will be resized to that percentage of the available gridpane height and the other size constraints (minHeight, prefHeight, maxHeight, vgrow) will be ignored. The default value is -1, which means the percentage will be ignored.
      Returns:
      the percentHeight property
      See Also:

    • setVgrow

      public final void setVgrow(Priority value)
      Sets the value of the vgrow property.
      Property description:
      The vertical grow priority for the row. If set, the gridpane will use this priority to determine whether the row should be given any additional height if the gridpane is resized larger than its preferred height. This property is ignored if percentHeight is set.

      This default value is null, which means that the row's grow priority will be derived from largest grow priority set on a content node.

      Parameters:
      value - the value for the vgrow property
      See Also:

    • getVgrow

      public final Priority getVgrow()
      Gets the value of the vgrow property.
      Property description:
      The vertical grow priority for the row. If set, the gridpane will use this priority to determine whether the row should be given any additional height if the gridpane is resized larger than its preferred height. This property is ignored if percentHeight is set.

      This default value is null, which means that the row's grow priority will be derived from largest grow priority set on a content node.

      Returns:
      the value of the vgrow property
      See Also:

    • vgrowProperty

      public final ObjectProperty<Priority> vgrowProperty()
      The vertical grow priority for the row. If set, the gridpane will use this priority to determine whether the row should be given any additional height if the gridpane is resized larger than its preferred height. This property is ignored if percentHeight is set.

      This default value is null, which means that the row's grow priority will be derived from largest grow priority set on a content node.

      Returns:
      the vgrow property
      See Also:

    • setValignment

      public final void setValignment(VPos value)
      Sets the value of the valignment property.
      Property description:
      The vertical alignment for the row. If set, will be the default vertical alignment for nodes contained within the row. If this property is set to VPos.BASELINE, then the fillHeight property will be ignored and nodes will always be resized to their preferred heights.
      Parameters:
      value - the value for the valignment property
      See Also:

    • getValignment

      public final VPos getValignment()
      Gets the value of the valignment property.
      Property description:
      The vertical alignment for the row. If set, will be the default vertical alignment for nodes contained within the row. If this property is set to VPos.BASELINE, then the fillHeight property will be ignored and nodes will always be resized to their preferred heights.
      Returns:
      the value of the valignment property
      See Also:

    • valignmentProperty

      public final ObjectProperty<VPos> valignmentProperty()
      The vertical alignment for the row. If set, will be the default vertical alignment for nodes contained within the row. If this property is set to VPos.BASELINE, then the fillHeight property will be ignored and nodes will always be resized to their preferred heights.
      Returns:
      the valignment property
      See Also:

    • setFillHeight

      public final void setFillHeight(boolean value)
      Sets the value of the fillHeight property.
      Property description:
      The vertical fill policy for the row. The gridpane will use this property to determine whether nodes contained within the row should be expanded to fill the row's height or kept to their preferred heights.

      The default value is true.

      Parameters:
      value - the value for the fillHeight property
      See Also:

    • isFillHeight

      public final boolean isFillHeight()
      Gets the value of the fillHeight property.
      Property description:
      The vertical fill policy for the row. The gridpane will use this property to determine whether nodes contained within the row should be expanded to fill the row's height or kept to their preferred heights.

      The default value is true.

      Returns:
      the value of the fillHeight property
      See Also:

    • fillHeightProperty

      public final BooleanProperty fillHeightProperty()
      The vertical fill policy for the row. The gridpane will use this property to determine whether nodes contained within the row should be expanded to fill the row's height or kept to their preferred heights.

      The default value is true.

      Returns:
      the fillHeight property
      See Also:

    • toString

      public String toString()
      Returns a string representation of this RowConstraints object.
      Overrides:
      toString in class Object
      Returns:
      a string representation of this RowConstraints object.