net.miginfocom.layout

Class Grid

java.lang.Object

net.miginfocom.layout.Grid

public final class Grid
extends Object

Holds components in a grid. Does most of the logic behind the layout manager.

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	TEST_GAPS

Constructor Summary

Constructors

Constructor and Description
Grid(ContainerWrapper container, LC lc, AC rowConstr, AC colConstr, Map<? extends ComponentWrapper,CC> ccMap, ArrayList<LayoutCallback> callbackList) Constructor.

Method Summary

Modifier and Type	Method and Description
ContainerWrapper	getContainer()
int[]	getHeight()
int[]	getHeight(int refWidth)
int[]	getWidth()
int[]	getWidth(int refHeight)
void	invalidateContainerSize() If the container (parent) that this grid is laying out has changed its bounds, call this method to clear any cached values min/pref/max sizes of the components and rows/columns.
boolean	layout(int[] bounds, UnitValue alignX, UnitValue alignY, boolean debug) Does the actual layout.
boolean	layout(int[] bounds, UnitValue alignX, UnitValue alignY, boolean debug, boolean notUsed) Deprecated. since 5.0 Last boolean is not needed and is gotten from the new ComponentWrapper.getContentBias() instead;
void	paintDebug()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

TEST_GAPS

public static final boolean TEST_GAPS

See Also:

Constant Field Values

Constructor Detail

Grid

public Grid(ContainerWrapper container,
            LC lc,
            AC rowConstr,
            AC colConstr,
            Map<? extends ComponentWrapper,CC> ccMap,
            ArrayList<LayoutCallback> callbackList)

Constructor.

Parameters:

container - The container that will be laid out.

lc - The form flow constraints.

rowConstr - The rows specifications. If more cell rows are required, the last element will be used for when there is no corresponding element in this array.

colConstr - The columns specifications. If more cell rows are required, the last element will be used for when there is no corresponding element in this array.

ccMap - The map containing the parsed constraints for each child component of parent. Will not be altered. Can have null CC which will use a common cached one.

callbackList - A list of callbacks or null if none. Will not be altered.

Method Detail

invalidateContainerSize

public void invalidateContainerSize()

If the container (parent) that this grid is laying out has changed its bounds, call this method to clear any cached values min/pref/max sizes of the components and rows/columns.

If any component can have changed cell the grid needs to be recreated.

layout

public boolean layout(int[] bounds,
                      UnitValue alignX,
                      UnitValue alignY,
                      boolean debug,
                      boolean notUsed)

Deprecated. since 5.0 Last boolean is not needed and is gotten from the new ComponentWrapper.getContentBias() instead;

layout

public boolean layout(int[] bounds,
                      UnitValue alignX,
                      UnitValue alignY,
                      boolean debug)

Does the actual layout. Uses many values calculated in the constructor.

Parameters:

bounds - The bounds to layout against. Normally that of the parent. [x, y, width, height].

alignX - The alignment for the x-axis. Can be null.

alignY - The alignment for the y-axis. Can be null.

debug - If debug information should be saved in debugRects.

Returns:

If the layout has changed the preferred size and there is need for a new layout. This can happen if one or more components in the grid has a content bias according to ComponentWrapper.getContentBias().

Since:

5.0

paintDebug

public void paintDebug()

getContainer

public ContainerWrapper getContainer()

getWidth

public final int[] getWidth()

getWidth

public final int[] getWidth(int refHeight)

getHeight

public final int[] getHeight()

getHeight

public final int[] getHeight(int refWidth)