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oracle.javatools.columnlayout
Class LayoutPanel

java.lang.Object
oracle.javatools.columnlayout.LayoutPanel

All Implemented Interfaces:

LayoutComponent

public class LayoutPanel

extends java.lang.Object

implements LayoutComponent

A LayoutPanel contains a grid of LayoutComponents, each of which can occupy a rectangle of cells. Layouts can be constructed by adding LayoutComponents, in a left to right fashion, and new lines.

Constructor Summary

LayoutPanel()

Method Summary

void	add(LayoutComponent lc) Add a LayoutComponent to the panel and advance the column position.
void	addToPanel(java.awt.Container container, int baseRow, int baseColumn, boolean[] rowConstraints, boolean[] columnConstraints, int rowSpan) Allow each LayoutComponent to add itself to the UI container with appropriate constraints.
void	areColumnsResizable(boolean[] columnConstraints, int baseColumn) Allow each LayoutComponent to set the column constraints.
void	areRowsResizable(boolean[] rowConstraints, int baseRow, int rowSpan) Allow each LayoutComponent to set the row constraints.
int	getColumnCount() Return the current column count.
int	getRowCount() Return the current row count.
void	nl() Move to a new line, reseting all the current counts.

Methods inherited from class java.lang.Object

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

Constructor Detail

LayoutPanel

public LayoutPanel()

Method Detail

addToPanel

public void addToPanel(java.awt.Container container,
                       int baseRow,
                       int baseColumn,
                       boolean[] rowConstraints,
                       boolean[] columnConstraints,
                       int rowSpan)

Allow each LayoutComponent to add itself to the UI container with appropriate constraints. If the row span is larger than the number of rows in the panel the extra span is applied to the last row.

Specified by:

addToPanel in interface LayoutComponent

Parameters:

container - the container to add to

baseRow - components must be added relative to this

baseColumn - components must be added relative to this

rowConstraints - whether each row is resizable or not, these are for the whole container

columnConstraints - same as rowConstraints but for columns

rowSpan - the number of rows which the LayoutComponent occupies this will be at least equal to the LayoutComponent's row count

areRowsResizable

public void areRowsResizable(boolean[] rowConstraints,
                             int baseRow,
                             int rowSpan)

Allow each LayoutComponent to set the row constraints. If the row span is larger than the number of rows in the panel the extra span is applied to the last row.

Specified by:

areRowsResizable in interface LayoutComponent

Parameters:

rowConstraints - the out parameter

baseRow - the position to start from in the rowConstraints

rowSpan - the length of the rowConstraints which can be changed

areColumnsResizable

public void areColumnsResizable(boolean[] columnConstraints,
                                int baseColumn)

Allow each LayoutComponent to set the column constraints.

Specified by:

areColumnsResizable in interface LayoutComponent

getRowCount

public int getRowCount()

Return the current row count.

Specified by:

getRowCount in interface LayoutComponent

getColumnCount

public int getColumnCount()

Return the current column count.

Specified by:

getColumnCount in interface LayoutComponent

add

public void add(LayoutComponent lc)

Add a LayoutComponent to the panel and advance the column position. This recalculates all the row and column sizes. After the LayoutComponent has been added it must not change size.

nl

public void nl()

Move to a new line, reseting all the current counts. This is ignored if nothing has been added to the current row.

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