uic.zaval.layout
Class Constraints

java.lang.Object
  uic.zaval.layout.Constraints

Direct Known Subclasses:

Entry

public class Constraints
extends Object

In finding a place in the grid of the NaturalLayout you can add a Constraints object add adding the widget to the parent.

   JPanel parent = new JPanel(new NaturalLayout(10, 10));
   parent.add(myChildWidget, new Constraint("0,0");
 

The different constructors in this class will give you more hints to the options you have. The most convenient method of adding a widget is using the constructor that takes a formatted String. You can even leave away the invocation of a new Constraints object so your add could look like:

    parent.add(myChildWidget, "1,0, 2,0");
 

Since:

1.1

See Also:

NaturalLayout

Field Summary

static char	ALIGN_HORIZONTAL_CENTER
static char	ALIGN_HORIZONTAL_FILLED
static char	ALIGN_HORIZONTAL_LEFT
static char	ALIGN_HORIZONTAL_RIGHT
static char	ALIGN_VERTICAL_BOTTOM
static char	ALIGN_VERTICAL_CENTER
static char	ALIGN_VERTICAL_FILLED
static char	ALIGN_VERTICAL_TOP
protected int	col1 Cell in which the upper left corner of the component lays
protected int	col2 Cell in which the lower right corner of the component lays
protected int	hAlign justification
protected int	row1 Cell in which the upper left corner of the component lays
protected int	row2 Cell in which the lower right corner of the component lays
protected int	vAlign justification

Constructor Summary

Constraints()
Constructs an Constraints with the default settings.

Constraints(int col1, int row1, int col2, int row2, int hAlign, int vAlign)
Constructs an Constraints a set of constraints.

Constraints(String constraints)
Constructs an Constraints from a string.

Method Summary

int	getHorizontalAlignment()
int	getLastColumn()
int	getLastRow()
int	getStartColumn()
int	getStartRow()
int	getVerticalAlignment()
void	setHorizontalAlignment(int hAlign)
void	setLastColumn(int col)
void	setLastRow(int row)
void	setStartColumn(int col)
void	setStartRow(int row)
void	setVerticalAlignment(int vAlign)
String	toString() Gets a string representation of this Constraints.

Methods inherited from class java.lang.Object

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

Field Detail

ALIGN_HORIZONTAL_LEFT

public static final char ALIGN_HORIZONTAL_LEFT

See Also:

Constant Field Values

ALIGN_HORIZONTAL_RIGHT

public static final char ALIGN_HORIZONTAL_RIGHT

See Also:

Constant Field Values

ALIGN_HORIZONTAL_CENTER

public static final char ALIGN_HORIZONTAL_CENTER

See Also:

Constant Field Values

ALIGN_HORIZONTAL_FILLED

public static final char ALIGN_HORIZONTAL_FILLED

See Also:

Constant Field Values

ALIGN_VERTICAL_TOP

public static final char ALIGN_VERTICAL_TOP

See Also:

Constant Field Values

ALIGN_VERTICAL_BOTTOM

public static final char ALIGN_VERTICAL_BOTTOM

See Also:

Constant Field Values

ALIGN_VERTICAL_CENTER

public static final char ALIGN_VERTICAL_CENTER

See Also:

Constant Field Values

ALIGN_VERTICAL_FILLED

public static final char ALIGN_VERTICAL_FILLED

See Also:

Constant Field Values

col1

protected int col1

Cell in which the upper left corner of the component lays

row1

protected int row1

Cell in which the upper left corner of the component lays

col2

protected int col2

Cell in which the lower right corner of the component lays

row2

protected int row2

Cell in which the lower right corner of the component lays

hAlign

protected int hAlign

justification

vAlign

protected int vAlign

justification

Constructor Detail

Constraints

public Constraints()

Constructs an Constraints with the default settings. This constructor is equivalent to Constraints(0, 0, 0, 0, NaturalLayout.ALIGN_FULL, NaturalLayout.ALIGN_FULL).

Constraints

public Constraints(String constraints)

Constructs an Constraints from a string. Using this constructor you will have all options available by creating a formatted string. The format build from 3 parts that can be left out at your choice;

• The start coordinates in the form "x1, y1". You need these always.
• The end coordinates in the form "x2, y2". Optional
• The alignment. In the format "C,T".
  Use either 'L','R','C','F' or the static variables defined in this class.

Examples:
"1,0" Widget in x=1 and y=0 and full alignment horizontal and vertical.
"1,0,1,1" Widget in both (1,0) and (1,1) with full alignment horizontal and vertical.
"1,0,C" Widget in (1,0) with centered alignment horizontal and full alignment vertical.
"1,0,L,B" Widget in (1,0) with left alignment horizontal and bottom alignment vertical.
"2,2,3,3,C,T" Widget in (2,2), (2,2), (3,2) and (3.3) with centerd alignment horizontal and top alignment vertical.

Parameters:

constraints - indicates Constraints's position and justification as a string in the form "column, row" or "column, row, horizontal justification, vertical justification" or "column 1, row 1, column 2, row 2". It is also acceptable to delimit the paramters with spaces instead of commas.

Constraints

public Constraints(int col1,
                   int row1,
                   int col2,
                   int row2,
                   int hAlign,
                   int vAlign)

Constructs an Constraints a set of constraints.

Parameters:

col1 - column where upper-left cornor of the component is placed

row1 - row where upper-left cornor of the component is placed

col2 - column where lower-right cornor of the component is placed

row2 - row where lower-right cornor of the component is placed

hAlign - horizontal justification of a component in a single cell

vAlign - vertical justification of a component in a single cell

Method Detail

toString

public String toString()

Gets a string representation of this Constraints.

Overrides:

toString in class Object

Returns:

a string in the form "column 1, row 1, column 2, row 2" or "column, row, horizontal justification, vertical justification"

getStartRow

public int getStartRow()

Returns:

row as int.

setStartRow

public void setStartRow(int row)

Parameters:

row - the value to set.

getStartColumn

public int getStartColumn()

Returns:

col as int.

setStartColumn

public void setStartColumn(int col)

Parameters:

col - the value to set.

getLastRow

public int getLastRow()

Returns:

row as int.

setLastRow

public void setLastRow(int row)

Parameters:

row - the value to set.

getLastColumn

public int getLastColumn()

Returns:

col as int.

setLastColumn

public void setLastColumn(int col)

Parameters:

col - the value to set.

getVerticalAlignment

public int getVerticalAlignment()

Returns:

vertical align as int.

setVerticalAlignment

public void setVerticalAlignment(int vAlign)

Parameters:

vAlign - the value to set.

getHorizontalAlignment

public int getHorizontalAlignment()

Returns:

horizontal alignment as int.

setHorizontalAlignment

public void setHorizontalAlignment(int hAlign)

Parameters:

hAlign - the value to set.