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class:FlowLayout [NONE]

  • All Implemented Interfaces:
    LayoutManager, Serializable


    public class FlowLayout
    extends Object
    implements LayoutManager, Serializable
    
    A flow layout arranges components in a directional flow, much like lines of text in a paragraph. The flow direction is determined by the container's componentOrientation property and may be one of two values:
    • ComponentOrientation.LEFT_TO_RIGHT
    • ComponentOrientation.RIGHT_TO_LEFT
    Flow layouts are typically used to arrange buttons in a panel. It arranges buttons horizontally until no more buttons fit on the same line. The line alignment is determined by the align property. The possible values are:

    For example, the following picture shows an applet using the flow layout manager (its default layout manager) to position three buttons:

    Graphic of Layout for Three Buttons

    Here is the code for this applet:


     import java.awt.*;
     import java.applet.Applet;
    
     public class myButtons extends Applet {
         Button button1, button2, button3;
         public void init() {
             button1 = new Button("Ok");
             button2 = new Button("Open");
             button3 = new Button("Close");
             add(button1);
             add(button2);
             add(button3);
         }
     }
     

    A flow layout lets each component assume its natural (preferred) size.

    Since:
    1.0
    See Also:
    ComponentOrientation, Serialized Form

field:LEFT [NONE]

  • LEFT

    public static final int LEFT
    This value indicates that each row of components should be left-justified.
    See Also:
    Constant Field Values

field:CENTER [NONE]

  • CENTER

    public static final int CENTER
    This value indicates that each row of components should be centered.
    See Also:
    Constant Field Values

field:RIGHT [NONE]

  • RIGHT

    public static final int RIGHT
    This value indicates that each row of components should be right-justified.
    See Also:
    Constant Field Values

field:LEADING [NONE]

field:TRAILING [NONE]

constructor:FlowLayout() [NONE]

  • FlowLayout

    public FlowLayout​()
    Constructs a new FlowLayout with a centered alignment and a default 5-unit horizontal and vertical gap.

constructor:FlowLayout(int) [NONE]

  • FlowLayout

    public FlowLayout​(int align)
    Constructs a new FlowLayout with the specified alignment and a default 5-unit horizontal and vertical gap. The value of the alignment argument must be one of FlowLayout.LEFT, FlowLayout.RIGHT, FlowLayout.CENTER, FlowLayout.LEADING, or FlowLayout.TRAILING.
    Parameters:
    align - the alignment value

constructor:FlowLayout(int, int, int) [NONE]

  • FlowLayout

    public FlowLayout​(int align,
                      int hgap,
                      int vgap)
    Creates a new flow layout manager with the indicated alignment and the indicated horizontal and vertical gaps.

    The value of the alignment argument must be one of FlowLayout.LEFT, FlowLayout.RIGHT, FlowLayout.CENTER, FlowLayout.LEADING, or FlowLayout.TRAILING.

    Parameters:
    align - the alignment value
    hgap - the horizontal gap between components and between the components and the borders of the Container
    vgap - the vertical gap between components and between the components and the borders of the Container

method:getAlignment() [NONE]

  • getAlignment

    public int getAlignment​()
    Gets the alignment for this layout. Possible values are FlowLayout.LEFT, FlowLayout.RIGHT, FlowLayout.CENTER, FlowLayout.LEADING, or FlowLayout.TRAILING.
    Returns:
    the alignment value for this layout
    Since:
    1.1
    See Also:
    setAlignment(int)

method:setAlignment(int) [NONE]

  • setAlignment

    public void setAlignment​(int align)
    Sets the alignment for this layout. Possible values are
    • FlowLayout.LEFT
    • FlowLayout.RIGHT
    • FlowLayout.CENTER
    • FlowLayout.LEADING
    • FlowLayout.TRAILING
    Parameters:
    align - one of the alignment values shown above
    Since:
    1.1
    See Also:
    getAlignment()

method:getHgap() [NONE]

  • getHgap

    public int getHgap​()
    Gets the horizontal gap between components and between the components and the borders of the Container
    Returns:
    the horizontal gap between components and between the components and the borders of the Container
    Since:
    1.1
    See Also:
    setHgap(int)

method:setHgap(int) [NONE]

  • setHgap

    public void setHgap​(int hgap)
    Sets the horizontal gap between components and between the components and the borders of the Container.
    Parameters:
    hgap - the horizontal gap between components and between the components and the borders of the Container
    Since:
    1.1
    See Also:
    getHgap()

method:getVgap() [NONE]

  • getVgap

    public int getVgap​()
    Gets the vertical gap between components and between the components and the borders of the Container.
    Returns:
    the vertical gap between components and between the components and the borders of the Container
    Since:
    1.1
    See Also:
    setVgap(int)

method:setVgap(int) [NONE]

  • setVgap

    public void setVgap​(int vgap)
    Sets the vertical gap between components and between the components and the borders of the Container.
    Parameters:
    vgap - the vertical gap between components and between the components and the borders of the Container
    Since:
    1.1
    See Also:
    getVgap()

method:setAlignOnBaseline(boolean) [NONE]

  • setAlignOnBaseline

    public void setAlignOnBaseline​(boolean alignOnBaseline)
    Sets whether or not components should be vertically aligned along their baseline. Components that do not have a baseline will be centered. The default is false.
    Parameters:
    alignOnBaseline - whether or not components should be vertically aligned on their baseline
    Since:
    1.6

method:getAlignOnBaseline() [NONE]

  • getAlignOnBaseline

    public boolean getAlignOnBaseline​()
    Returns true if components are to be vertically aligned along their baseline. The default is false.
    Returns:
    true if components are to be vertically aligned along their baseline
    Since:
    1.6

method:addLayoutComponent(java.lang.String, java.awt.Component) [NONE]

  • addLayoutComponent

    public void addLayoutComponent​(String name,
                                   Component comp)
    Adds the specified component to the layout. Not used by this class.
    Specified by:
    addLayoutComponent in interface LayoutManager
    Parameters:
    name - the name of the component
    comp - the component to be added

method:removeLayoutComponent(java.awt.Component) [NONE]

method:preferredLayoutSize(java.awt.Container) [NONE]

method:minimumLayoutSize(java.awt.Container) [NONE]

method:layoutContainer(java.awt.Container) [NONE]

  • layoutContainer

    public void layoutContainer​(Container target)
    Lays out the container. This method lets each visible component take its preferred size by reshaping the components in the target container in order to satisfy the alignment of this FlowLayout object.
    Specified by:
    layoutContainer in interface LayoutManager
    Parameters:
    target - the specified component being laid out
    See Also:
    Container, Container.doLayout()

method:toString() [NONE]

  • toString

    public String toString​()
    Returns a string representation of this FlowLayout object and its values.
    Overrides:
    toString in class Object
    Returns:
    a string representation of this layout