IT. Expert System.

Java Standard Edition (SE)

GridBagConstraints


java.awt

Class GridBagConstraints

    • Field Summary

      Fields 
      Modifier and Type Field and Description
      static int ABOVE_BASELINE
      Possible value for the anchor field.
      static int ABOVE_BASELINE_LEADING
      Possible value for the anchor field.
      static int ABOVE_BASELINE_TRAILING
      Possible value for the anchor field.
      int anchor
      This field is used when the component is smaller than its display area.
      static int BASELINE
      Possible value for the anchor field.
      static int BASELINE_LEADING
      Possible value for the anchor field.
      static int BASELINE_TRAILING
      Possible value for the anchor field.
      static int BELOW_BASELINE
      Possible value for the anchor field.
      static int BELOW_BASELINE_LEADING
      Possible value for the anchor field.
      static int BELOW_BASELINE_TRAILING
      Possible value for the anchor field.
      static int BOTH
      Resize the component both horizontally and vertically.
      static int CENTER
      Put the component in the center of its display area.
      static int EAST
      Put the component on the right side of its display area, centered vertically.
      int fill
      This field is used when the component's display area is larger than the component's requested size.
      static int FIRST_LINE_END
      Place the component in the corner of its display area where the first line of text on a page would normally end for the current ComponentOrientation.
      static int FIRST_LINE_START
      Place the component in the corner of its display area where the first line of text on a page would normally begin for the current ComponentOrientation.
      int gridheight
      Specifies the number of cells in a column for the component's display area.
      int gridwidth
      Specifies the number of cells in a row for the component's display area.
      int gridx
      Specifies the cell containing the leading edge of the component's display area, where the first cell in a row has gridx=0.
      int gridy
      Specifies the cell at the top of the component's display area, where the topmost cell has gridy=0.
      static int HORIZONTAL
      Resize the component horizontally but not vertically.
      Insets insets
      This field specifies the external padding of the component, the minimum amount of space between the component and the edges of its display area.
      int ipadx
      This field specifies the internal padding of the component, how much space to add to the minimum width of the component.
      int ipady
      This field specifies the internal padding, that is, how much space to add to the minimum height of the component.
      static int LAST_LINE_END
      Place the component in the corner of its display area where the last line of text on a page would normally end for the current ComponentOrientation.
      static int LAST_LINE_START
      Place the component in the corner of its display area where the last line of text on a page would normally start for the current ComponentOrientation.
      static int LINE_END
      Place the component centered along the edge of its display area where lines of text would normally end for the current ComponentOrientation.
      static int LINE_START
      Place the component centered along the edge of its display area where lines of text would normally begin for the current ComponentOrientation.
      static int NONE
      Do not resize the component.
      static int NORTH
      Put the component at the top of its display area, centered horizontally.
      static int NORTHEAST
      Put the component at the top-right corner of its display area.
      static int NORTHWEST
      Put the component at the top-left corner of its display area.
      static int PAGE_END
      Place the component centered along the edge of its display area associated with the end of a page for the current ComponentOrientation.
      static int PAGE_START
      Place the component centered along the edge of its display area associated with the start of a page for the current ComponentOrientation.
      static int RELATIVE
      Specifies that this component is the next-to-last component in its column or row (gridwidth, gridheight), or that this component be placed next to the previously added component (gridx, gridy).
      static int REMAINDER
      Specifies that this component is the last component in its column or row.
      static int SOUTH
      Put the component at the bottom of its display area, centered horizontally.
      static int SOUTHEAST
      Put the component at the bottom-right corner of its display area.
      static int SOUTHWEST
      Put the component at the bottom-left corner of its display area.
      static int VERTICAL
      Resize the component vertically but not horizontally.
      double weightx
      Specifies how to distribute extra horizontal space.
      double weighty
      Specifies how to distribute extra vertical space.
      static int WEST
      Put the component on the left side of its display area, centered vertically.
    • Constructor Summary

      Constructors 
      Constructor and Description
      GridBagConstraints()
      Creates a GridBagConstraint object with all of its fields set to their default value.
      GridBagConstraints(int gridx, int gridy, int gridwidth, int gridheight, double weightx, double weighty, int anchor, int fill, Insets insets, int ipadx, int ipady)
      Creates a GridBagConstraints object with all of its fields set to the passed-in arguments.
    • Field Detail

      • RELATIVE

        public static final int RELATIVE
        Specifies that this component is the next-to-last component in its column or row (gridwidth, gridheight), or that this component be placed next to the previously added component (gridx, gridy).
        See Also:
        gridwidth, gridheight, gridx, gridy, Constant Field Values
      • REMAINDER

        public static final int REMAINDER
        Specifies that this component is the last component in its column or row.
        See Also:
        Constant Field Values
      • BOTH

        public static final int BOTH
        Resize the component both horizontally and vertically.
        See Also:
        Constant Field Values
      • HORIZONTAL

        public static final int HORIZONTAL
        Resize the component horizontally but not vertically.
        See Also:
        Constant Field Values
      • VERTICAL

        public static final int VERTICAL
        Resize the component vertically but not horizontally.
        See Also:
        Constant Field Values
      • CENTER

        public static final int CENTER
        Put the component in the center of its display area.
        See Also:
        Constant Field Values
      • NORTH

        public static final int NORTH
        Put the component at the top of its display area, centered horizontally.
        See Also:
        Constant Field Values
      • NORTHEAST

        public static final int NORTHEAST
        Put the component at the top-right corner of its display area.
        See Also:
        Constant Field Values
      • EAST

        public static final int EAST
        Put the component on the right side of its display area, centered vertically.
        See Also:
        Constant Field Values
      • SOUTHEAST

        public static final int SOUTHEAST
        Put the component at the bottom-right corner of its display area.
        See Also:
        Constant Field Values
      • SOUTH

        public static final int SOUTH
        Put the component at the bottom of its display area, centered horizontally.
        See Also:
        Constant Field Values
      • SOUTHWEST

        public static final int SOUTHWEST
        Put the component at the bottom-left corner of its display area.
        See Also:
        Constant Field Values
      • WEST

        public static final int WEST
        Put the component on the left side of its display area, centered vertically.
        See Also:
        Constant Field Values
      • NORTHWEST

        public static final int NORTHWEST
        Put the component at the top-left corner of its display area.
        See Also:
        Constant Field Values
      • PAGE_START

        public static final int PAGE_START
        Place the component centered along the edge of its display area associated with the start of a page for the current ComponentOrientation. Equal to NORTH for horizontal orientations.
        See Also:
        Constant Field Values
      • PAGE_END

        public static final int PAGE_END
        Place the component centered along the edge of its display area associated with the end of a page for the current ComponentOrientation. Equal to SOUTH for horizontal orientations.
        See Also:
        Constant Field Values
      • LINE_START

        public static final int LINE_START
        Place the component centered along the edge of its display area where lines of text would normally begin for the current ComponentOrientation. Equal to WEST for horizontal, left-to-right orientations and EAST for horizontal, right-to-left orientations.
        See Also:
        Constant Field Values
      • LINE_END

        public static final int LINE_END
        Place the component centered along the edge of its display area where lines of text would normally end for the current ComponentOrientation. Equal to EAST for horizontal, left-to-right orientations and WEST for horizontal, right-to-left orientations.
        See Also:
        Constant Field Values
      • FIRST_LINE_START

        public static final int FIRST_LINE_START
        Place the component in the corner of its display area where the first line of text on a page would normally begin for the current ComponentOrientation. Equal to NORTHWEST for horizontal, left-to-right orientations and NORTHEAST for horizontal, right-to-left orientations.
        See Also:
        Constant Field Values
      • FIRST_LINE_END

        public static final int FIRST_LINE_END
        Place the component in the corner of its display area where the first line of text on a page would normally end for the current ComponentOrientation. Equal to NORTHEAST for horizontal, left-to-right orientations and NORTHWEST for horizontal, right-to-left orientations.
        See Also:
        Constant Field Values
      • LAST_LINE_START

        public static final int LAST_LINE_START
        Place the component in the corner of its display area where the last line of text on a page would normally start for the current ComponentOrientation. Equal to SOUTHWEST for horizontal, left-to-right orientations and SOUTHEAST for horizontal, right-to-left orientations.
        See Also:
        Constant Field Values
      • LAST_LINE_END

        public static final int LAST_LINE_END
        Place the component in the corner of its display area where the last line of text on a page would normally end for the current ComponentOrientation. Equal to SOUTHEAST for horizontal, left-to-right orientations and SOUTHWEST for horizontal, right-to-left orientations.
        See Also:
        Constant Field Values
      • BASELINE

        public static final int BASELINE
        Possible value for the anchor field. Specifies that the component should be horizontally centered and vertically aligned along the baseline of the prevailing row. If the component does not have a baseline it will be vertically centered.
        Since:
        1.6
        See Also:
        Constant Field Values
      • BASELINE_LEADING

        public static final int BASELINE_LEADING
        Possible value for the anchor field. Specifies that the component should be horizontally placed along the leading edge. For components with a left-to-right orientation, the leading edge is the left edge. Vertically the component is aligned along the baseline of the prevailing row. If the component does not have a baseline it will be vertically centered.
        Since:
        1.6
        See Also:
        Constant Field Values
      • BASELINE_TRAILING

        public static final int BASELINE_TRAILING
        Possible value for the anchor field. Specifies that the component should be horizontally placed along the trailing edge. For components with a left-to-right orientation, the trailing edge is the right edge. Vertically the component is aligned along the baseline of the prevailing row. If the component does not have a baseline it will be vertically centered.
        Since:
        1.6
        See Also:
        Constant Field Values
      • ABOVE_BASELINE

        public static final int ABOVE_BASELINE
        Possible value for the anchor field. Specifies that the component should be horizontally centered. Vertically the component is positioned so that its bottom edge touches the baseline of the starting row. If the starting row does not have a baseline it will be vertically centered.
        Since:
        1.6
        See Also:
        Constant Field Values
      • ABOVE_BASELINE_LEADING

        public static final int ABOVE_BASELINE_LEADING
        Possible value for the anchor field. Specifies that the component should be horizontally placed along the leading edge. For components with a left-to-right orientation, the leading edge is the left edge. Vertically the component is positioned so that its bottom edge touches the baseline of the starting row. If the starting row does not have a baseline it will be vertically centered.
        Since:
        1.6
        See Also:
        Constant Field Values
      • ABOVE_BASELINE_TRAILING

        public static final int ABOVE_BASELINE_TRAILING
        Possible value for the anchor field. Specifies that the component should be horizontally placed along the trailing edge. For components with a left-to-right orientation, the trailing edge is the right edge. Vertically the component is positioned so that its bottom edge touches the baseline of the starting row. If the starting row does not have a baseline it will be vertically centered.
        Since:
        1.6
        See Also:
        Constant Field Values
      • BELOW_BASELINE

        public static final int BELOW_BASELINE
        Possible value for the anchor field. Specifies that the component should be horizontally centered. Vertically the component is positioned so that its top edge touches the baseline of the starting row. If the starting row does not have a baseline it will be vertically centered.
        Since:
        1.6
        See Also:
        Constant Field Values
      • BELOW_BASELINE_LEADING

        public static final int BELOW_BASELINE_LEADING
        Possible value for the anchor field. Specifies that the component should be horizontally placed along the leading edge. For components with a left-to-right orientation, the leading edge is the left edge. Vertically the component is positioned so that its top edge touches the baseline of the starting row. If the starting row does not have a baseline it will be vertically centered.
        Since:
        1.6
        See Also:
        Constant Field Values
      • BELOW_BASELINE_TRAILING

        public static final int BELOW_BASELINE_TRAILING
        Possible value for the anchor field. Specifies that the component should be horizontally placed along the trailing edge. For components with a left-to-right orientation, the trailing edge is the right edge. Vertically the component is positioned so that its top edge touches the baseline of the starting row. If the starting row does not have a baseline it will be vertically centered.
        Since:
        1.6
        See Also:
        Constant Field Values
      • gridx

        public int gridx
        Specifies the cell containing the leading edge of the component's display area, where the first cell in a row has gridx=0. The leading edge of a component's display area is its left edge for a horizontal, left-to-right container and its right edge for a horizontal, right-to-left container. The value RELATIVE specifies that the component be placed immediately following the component that was added to the container just before this component was added.

        The default value is RELATIVE. gridx should be a non-negative value.

        See Also:
        clone(), gridy, ComponentOrientation
      • gridy

        public int gridy
        Specifies the cell at the top of the component's display area, where the topmost cell has gridy=0. The value RELATIVE specifies that the component be placed just below the component that was added to the container just before this component was added.

        The default value is RELATIVE. gridy should be a non-negative value.

        See Also:
        clone(), gridx
      • gridwidth

        public int gridwidth
        Specifies the number of cells in a row for the component's display area.

        Use REMAINDER to specify that the component's display area will be from gridx to the last cell in the row. Use RELATIVE to specify that the component's display area will be from gridx to the next to the last one in its row.

        gridwidth should be non-negative and the default value is 1.

        See Also:
        clone(), gridheight
      • gridheight

        public int gridheight
        Specifies the number of cells in a column for the component's display area.

        Use REMAINDER to specify that the component's display area will be from gridy to the last cell in the column. Use RELATIVE to specify that the component's display area will be from gridy to the next to the last one in its column.

        gridheight should be a non-negative value and the default value is 1.

        See Also:
        clone(), gridwidth
      • weightx

        public double weightx
        Specifies how to distribute extra horizontal space.

        The grid bag layout manager calculates the weight of a column to be the maximum weightx of all the components in a column. If the resulting layout is smaller horizontally than the area it needs to fill, the extra space is distributed to each column in proportion to its weight. A column that has a weight of zero receives no extra space.

        If all the weights are zero, all the extra space appears between the grids of the cell and the left and right edges.

        The default value of this field is 0. weightx should be a non-negative value.

        See Also:
        clone(), weighty
      • weighty

        public double weighty
        Specifies how to distribute extra vertical space.

        The grid bag layout manager calculates the weight of a row to be the maximum weighty of all the components in a row. If the resulting layout is smaller vertically than the area it needs to fill, the extra space is distributed to each row in proportion to its weight. A row that has a weight of zero receives no extra space.

        If all the weights are zero, all the extra space appears between the grids of the cell and the top and bottom edges.

        The default value of this field is 0. weighty should be a non-negative value.

        See Also:
        clone(), weightx
      • anchor

        public int anchor
        This field is used when the component is smaller than its display area. It determines where, within the display area, to place the component.

        There are three kinds of possible values: orientation relative, baseline relative and absolute. Orientation relative values are interpreted relative to the container's component orientation property, baseline relative values are interpreted relative to the baseline and absolute values are not. The absolute values are: CENTER, NORTH, NORTHEAST, EAST, SOUTHEAST, SOUTH, SOUTHWEST, WEST, and NORTHWEST. The orientation relative values are: PAGE_START, PAGE_END, LINE_START, LINE_END, FIRST_LINE_START, FIRST_LINE_END, LAST_LINE_START and LAST_LINE_END. The baseline relative values are: BASELINE, BASELINE_LEADING, BASELINE_TRAILING, ABOVE_BASELINE, ABOVE_BASELINE_LEADING, ABOVE_BASELINE_TRAILING, BELOW_BASELINE, BELOW_BASELINE_LEADING, and BELOW_BASELINE_TRAILING. The default value is CENTER.

        See Also:
        clone(), ComponentOrientation
      • fill

        public int fill
        This field is used when the component's display area is larger than the component's requested size. It determines whether to resize the component, and if so, how.

        The following values are valid for fill:

        • NONE: Do not resize the component.
        • HORIZONTAL: Make the component wide enough to fill its display area horizontally, but do not change its height.
        • VERTICAL: Make the component tall enough to fill its display area vertically, but do not change its width.
        • BOTH: Make the component fill its display area entirely.

        The default value is NONE.

        See Also:
        clone()
      • insets

        public Insets insets
        This field specifies the external padding of the component, the minimum amount of space between the component and the edges of its display area.

        The default value is new Insets(0, 0, 0, 0).

        See Also:
        clone()
      • ipadx

        public int ipadx
        This field specifies the internal padding of the component, how much space to add to the minimum width of the component. The width of the component is at least its minimum width plus ipadx pixels.

        The default value is 0.

        See Also:
        clone(), ipady
      • ipady

        public int ipady
        This field specifies the internal padding, that is, how much space to add to the minimum height of the component. The height of the component is at least its minimum height plus ipady pixels.

        The default value is 0.

        See Also:
        clone(), ipadx
    • Constructor Detail

      • GridBagConstraints

        public GridBagConstraints()
        Creates a GridBagConstraint object with all of its fields set to their default value.
      • GridBagConstraints

        public GridBagConstraints(int gridx,
                                  int gridy,
                                  int gridwidth,
                                  int gridheight,
                                  double weightx,
                                  double weighty,
                                  int anchor,
                                  int fill,
                                  Insets insets,
                                  int ipadx,
                                  int ipady)
        Creates a GridBagConstraints object with all of its fields set to the passed-in arguments. Note: Because the use of this constructor hinders readability of source code, this constructor should only be used by automatic source code generation tools.
        Parameters:
        gridx - The initial gridx value.
        gridy - The initial gridy value.
        gridwidth - The initial gridwidth value.
        gridheight - The initial gridheight value.
        weightx - The initial weightx value.
        weighty - The initial weighty value.
        anchor - The initial anchor value.
        fill - The initial fill value.
        insets - The initial insets value.
        ipadx - The initial ipadx value.
        ipady - The initial ipady value.
        Since:
        1.2
        See Also:
        gridx, gridy, gridwidth, gridheight, weightx, weighty, anchor, fill, insets, ipadx, ipady
    • Method Detail

      • clone

        public Object clone()
        Creates a copy of this grid bag constraint.
        Overrides:
        clone in class Object
        Returns:
        a copy of this grid bag constraint
        See Also:
        Cloneable


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