org.das2.graph

Class DasColumn

java.lang.Object

org.das2.graph.DasDevicePosition

org.das2.graph.DasColumn

All Implemented Interfaces:

java.io.Serializable, Editable

public class DasColumn
extends DasDevicePosition

DasColumn object represents the horizontal position on the canvas.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static DasColumn	NULL placeholder for unassigned value.

Fields inherited from class org.das2.graph.DasDevicePosition

canvas, listenerList, parent, PROP_DMAXIMUM, PROP_DMINIMUM, PROP_EMMAXIMUM, PROP_EMMINIMUM, PROP_MAXIMUM, PROP_MAXLAYOUT, PROP_MINIMUM, PROP_MINLAYOUT, PROP_PARENT_DEVICE_POSITION_DAS_NAME, PROP_PTMAXIMUM, PROP_PTMINIMUM

Constructor Summary

Constructors

Constructor and Description
DasColumn(DasCanvas canvas, DasColumn parent, double nMin, double nMax, double emMin, double emMax, int ptMin, int ptMax) create a DasColumn
DasColumn(DasCanvas parent, double nMin, double nMax) create a DasColumn with the normal position and no offsets.

Method Summary

Modifier and Type	Method and Description
static DasColumn	create(DasCanvas parent) create a DasColumn
static DasColumn	create(DasCanvas canvas, DasColumn parent, java.lang.String minStr, java.lang.String maxStr) makes a new DasColumn by parsing a string like "100%-5em+3pt" to get the offsets.
DasColumn	createAttachedColumn(double pleft, double pright) create a column that is positioned relative to this column.
java.lang.String	getParentColumnName() return the name of the column this is attached to, or empty string.
int	getWidth() return the width in points (pixels) of the column.
int	left() return pixel location of the left of the column.
int	right() return pixel location the right (non-inclusive) of the column.
void	setParentColumn(DasColumn c) reset the parent to be this new DasColumn, or null.

Methods inherited from class org.das2.graph.DasDevicePosition

addPropertyChangeListener, addPropertyChangeListener, addUpdateListener, contains, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireUpdate, formatFormatStr, formatLayoutStr, formatLayoutStr, formatLayoutStr, getCanvas, getDasName, getDeviceSize, getDMaximum, getDMiddle, getDMinimum, getEmMaximum, getEmMinimum, getEmSize, getMaximum, getMaxLayout, getMinimum, getMinLayout, getParent, getParentDasName, getParentDevicePosition, getPtMaximum, getPtMinimum, isValueIsAdjusting, mutatorLock, parseFormatStr, parseLayoutStr, parseLayoutStr, parseLayoutStr, removeListeners, removePropertyChangeListener, removePropertyChangeListener, removeUpdateListener, revalidate, setDasName, setDMaximum, setDMinimum, setDPosition, setEmMaximum, setEmMinimum, setMax, setMaximum, setMaxLayout, setMin, setMinimum, setMinLayout, setParent, setParentDevicePosition, setPtMaximum, setPtMinimum, toRectangle, toString

Methods inherited from class java.lang.Object

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

Field Detail

NULL

public static final DasColumn NULL

placeholder for unassigned value.

Constructor Detail

DasColumn

public DasColumn(DasCanvas parent,
                 double nMin,
                 double nMax)

create a DasColumn with the normal position and no offsets.

Parameters:

parent - the canvas where this lives.

nMin - normal position of the left with respect to the canvas.

nMax - normal position of the right with respect to the canvas

DasColumn

public DasColumn(DasCanvas canvas,
                 DasColumn parent,
                 double nMin,
                 double nMax,
                 double emMin,
                 double emMax,
                 int ptMin,
                 int ptMax)

create a DasColumn

Parameters:

canvas - the canvas where this lives.

parent - the parent row or null to which this is relative.

nMin - normal position of the left with respect to the canvas or parent if non-null.

nMax - normal position of the right with respect to the canvas or parent if non-null.

emMin - em offset of the left from the minimum position, in canvas font heights.

emMax - em offset of the right from the maximum position, in canvas font heights.

ptMin - point offset of the left from the minimum position, note points are the same as pixels.

ptMax - point offset of the right from the maximum position, note points are the same as pixels.

Method Detail

create

public static DasColumn create(DasCanvas canvas,
                               DasColumn parent,
                               java.lang.String minStr,
                               java.lang.String maxStr)

makes a new DasColumn by parsing a string like "100%-5em+3pt" to get the offsets. The three qualifiers are "%", "em", and "pt", but "px" is allowed as well as surely people will use that by mistake. If an offset or the normal position is not specified, then 0 is used.

Parameters:

canvas - the canvas for the layout, ignored when a parent DasColumn is used.

parent - if non-null, this DasColumn is specified with respect to parent.

minStr - a string like "0%+5em"

maxStr - a string like "100%-7em"

Returns:

a new DasColumn

Throws:

java.lang.IllegalArgumentException - if the strings cannot be parsed

getWidth

public int getWidth()

return the width in points (pixels) of the column.

Returns:

the width in points (pixels) of the column.

create

public static DasColumn create(DasCanvas parent)

create a DasColumn

Parameters:

parent - the canvas where this lives.

Returns:

DasColumn

createAttachedColumn

public DasColumn createAttachedColumn(double pleft,
                                      double pright)

create a column that is positioned relative to this column.

Parameters:

pleft - the normal position

pright - the normal position

Returns:

the new row.

left

public int left()

return pixel location of the left of the column.

Returns:

pixel location of the left of the column.

right

public int right()

return pixel location the right (non-inclusive) of the column.

Returns:

pixel location the right (non-inclusive) of the column.

setParentColumn

public void setParentColumn(DasColumn c)

reset the parent to be this new DasColumn, or null.

Parameters:

c - the new parent column, or null.

getParentColumnName

public java.lang.String getParentColumnName()

return the name of the column this is attached to, or empty string.

Returns:

the name of the column this is attached to, or empty string.