org.openbp.swing.components.treetable.resize
Class ColumnSizeConstraint

java.lang.Object
  org.openbp.swing.components.treetable.resize.ColumnSizeConstraint

Direct Known Subclasses:

FullVisibleConstraint, RatioConstraint

public class ColumnSizeConstraint
extends java.lang.Object

Constraint for the column width. Each column get the preferred width of the component with the maximal width.

Author:

Baumgartner Michael

Field Summary

protected int	absoluteMinSize The absolute minimal width of a column.
protected int[][]	columnSizes Hold the mix/max/prefered sizes for each column.
protected static int	MAX Index for max width.
protected static int	MIN Index for min width.
protected int[]	minSizeOfColumns Minimal size of the columns.
protected static int	PREFERRED Index for preferred width.
protected int	treeColumnMaxWidth Max width of tree column.

Constructor Summary

ColumnSizeConstraint()
Constructor.

Method Summary

void	addMaxSizeForColumn(int column, double maxValue) Add a maximal width for a column
void	adjustMaximalWidthOfColumn(JTreeTable treetable) Update the max width of column if they are set.
void	adjustPreferredToWidth(JTreeTable treetable) Adjust the prefered width of all columns to the width of the whole tree table.
void	calculateColumnSizes(JTreeTable treetable) Calculates the size of each column in the tree table.
int	determineMaxColumnWidth(JTreeTable treetable, int column) Determines the maximum width of the tree column according to the text displayed.
int	determineMaxTreeColumnWidth(JTreeTable treetable) Determines the maximum width of the tree column according to the text displayed.
int	getAbsoluteMinimum() Get the absolute minimal widht of all columns.
int	getMaxWidthOfColumn(int column) Get the maximal widht of the column
int	getMinWidthOfColumn(int column) Get the minimal width of the column
int	getPreferredWidthOfColumn(int column) Get the preferred widht of the column
boolean	isRecalculateNeeded(JTreeTable treetable) Determine if the preferred width of the columns needs to be re-calculated or not.
void	setAboluteMinimun(int minSize) Set the absolute minimal width of all columns.
protected void	setColumnWidth(int type, int column, int width) Set a width for a column.
void	setMinimumOfColumn(int columnWidth, int column, JTreeTable treetable) Set the minimal width of a column.

Methods inherited from class java.lang.Object

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

Field Detail

absoluteMinSize

protected int absoluteMinSize

The absolute minimal width of a column.

MAX

protected static final int MAX

Index for max width.

See Also:

Constant Field Values

MIN

protected static final int MIN

Index for min width.

See Also:

Constant Field Values

PREFERRED

protected static final int PREFERRED

Index for preferred width.

See Also:

Constant Field Values

columnSizes

protected int[][] columnSizes

Hold the mix/max/prefered sizes for each column.

minSizeOfColumns

protected int[] minSizeOfColumns

Minimal size of the columns.

treeColumnMaxWidth

protected int treeColumnMaxWidth

Max width of tree column.

Constructor Detail

ColumnSizeConstraint

public ColumnSizeConstraint()

Constructor.

Method Detail

calculateColumnSizes

public void calculateColumnSizes(JTreeTable treetable)

Calculates the size of each column in the tree table. The results can be queried by the getMinWidthOfColumn(int), getMaxWidthOfColumn(int) and getPreferredWidthOfColumn(int). The sizes don't change until the method is re-executed.

Parameters:

treetable - The treetable whose columns are to be resized

adjustPreferredToWidth

public void adjustPreferredToWidth(JTreeTable treetable)

Adjust the prefered width of all columns to the width of the whole tree table.

Parameters:

treetable - The treetable whose columns are to be resized

adjustMaximalWidthOfColumn

public void adjustMaximalWidthOfColumn(JTreeTable treetable)

Update the max width of column if they are set.

Parameters:

treetable - The tree table

isRecalculateNeeded

public boolean isRecalculateNeeded(JTreeTable treetable)

Determine if the preferred width of the columns needs to be re-calculated or not. Only if the width of the tree table has been changed, the values must be adjusted.

Parameters:

treetable - The tree table

Returns:

true A recalculate must be executed. false There is no need to recalculate the preferred width.

getMinWidthOfColumn

public int getMinWidthOfColumn(int column)

Get the minimal width of the column

Parameters:

column - The column

Returns:

the minimal width

getMaxWidthOfColumn

public int getMaxWidthOfColumn(int column)

Get the maximal widht of the column

Parameters:

column - The column

Returns:

the maximal width

getPreferredWidthOfColumn

public int getPreferredWidthOfColumn(int column)

Get the preferred widht of the column

Parameters:

column - The column

Returns:

the maximal width

setColumnWidth

protected void setColumnWidth(int type,
                              int column,
                              int width)

Set a width for a column.

Parameters:

type - The type to set MAX, MIN or PREFERRED

column - The column to set

width - The width to set

setAboluteMinimun

public void setAboluteMinimun(int minSize)

Set the absolute minimal width of all columns. The columns can not be smaller than this.

Parameters:

minSize - the width

getAbsoluteMinimum

public int getAbsoluteMinimum()

Get the absolute minimal widht of all columns.

Returns:

the width

setMinimumOfColumn

public void setMinimumOfColumn(int columnWidth,
                               int column,
                               JTreeTable treetable)

Set the minimal width of a column. If the width is less than the absolute minimal, then the absolute is set.

Parameters:

columnWidth - The minimal width

column - The index of the column

treetable - The treetable

determineMaxColumnWidth

public int determineMaxColumnWidth(JTreeTable treetable,
                                   int column)

Determines the maximum width of the tree column according to the text displayed.

Parameters:

treetable - The treetable

column - The index of the column

Returns:

The maximum width or 0 if it cannot be determined yet

determineMaxTreeColumnWidth

public int determineMaxTreeColumnWidth(JTreeTable treetable)

Determines the maximum width of the tree column according to the text displayed.

Parameters:

treetable - The treetable

Returns:

The maximum width or 0 if it cannot be determined yet

addMaxSizeForColumn

public void addMaxSizeForColumn(int column,
                                double maxValue)

Add a maximal width for a column

Parameters:

column - The column for that the maximal width is set

maxValue - The maximal value wherea 1.0 means the column can be as width as the tree table and 0.5 means the column can be maximal half as width as the tree table.