Package uk.ac.starlink.vo
Class DoubleValueField
java.lang.Object
uk.ac.starlink.vo.DoubleValueField
Generalised data entry field which can hold a double precision number.
As well as a text entry field, this also contains an option for choosing
the format in which the data will be entered.
The format options are defined by an array of
ValueConverter
objects supplied at construction time.- Since:
- 21 Dec 2004
- Author:
- Mark Taylor (Starlink)
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Constructor Summary
ConstructorsConstructorDescriptionDoubleValueField
(String name, ValueConverter[] convs) Constructs a value field given its name.DoubleValueField
(uk.ac.starlink.table.ValueInfo info, ValueConverter[] convs) Constructs a value field given a ValueInfo object. -
Method Summary
Modifier and TypeMethodDescriptionReturns the combo box used to select the entry format used by this field.uk.ac.starlink.table.DescribedValue
Returns a described value object (metadata+data) which describes the value currently held by this field.Returns this field's text entry component.getLabel()
Returns this field's label componnent.double
getValue()
Returns the numeric value which the user has entered.uk.ac.starlink.table.DefaultValueInfo
Returns the ValueInfo object which describes the data in this field.static DoubleValueField
Returns an instance suitable for entering Declination for whichgetValue()
returns degrees.static DoubleValueField
Returns an instance suitable for entering Right Ascension, for whichgetValue()
returns degrees.static DoubleValueField
makeSizeDegreesField
(uk.ac.starlink.table.ValueInfo info) Returns an instance suitable for entering an angular size, for whichgetValue()
returns degrees.void
setDescription
(String description) Sets the description of this field.void
setEnabled
(boolean enabled) Sets the enabled status of the user-interacting components of this field.void
setValue
(double value) Sets the state of the GUI component controlled by this field.
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Constructor Details
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DoubleValueField
Constructs a value field given its name.- Parameters:
name
- field nameconvs
- list of converter objects
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DoubleValueField
Constructs a value field given a ValueInfo object.- Parameters:
info
- field metadataconvs
- list of converter objects
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Method Details
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getValueInfo
public uk.ac.starlink.table.DefaultValueInfo getValueInfo()Returns the ValueInfo object which describes the data in this field.- Returns:
- metadata object for this field
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setDescription
Sets the description of this field. This may be presented as a tool tip and stored in the metadata associated with this field.- Parameters:
description
- description of field
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getDescribedValue
public uk.ac.starlink.table.DescribedValue getDescribedValue()Returns a described value object (metadata+data) which describes the value currently held by this field.- Returns:
- content of this field
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getLabel
Returns this field's label componnent.- Returns:
- label
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getEntryField
Returns this field's text entry component.- Returns:
- entry field
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getConverterSelector
Returns the combo box used to select the entry format used by this field.- Returns:
- format selector
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getValue
public double getValue()Returns the numeric value which the user has entered. This may be modified according to which format convertor is currently selected.- Returns:
- field value
- Throws:
IllegalArgumentException
- if the current contents of the entry field don't make sense to the current format selector
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setValue
public void setValue(double value) Sets the state of the GUI component controlled by this field.- Parameters:
value
- value to display
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setEnabled
public void setEnabled(boolean enabled) Sets the enabled status of the user-interacting components of this field.- Parameters:
enabled
- whether this component is to be enabled or not
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makeRADegreesField
Returns an instance suitable for entering Right Ascension, for whichgetValue()
returns degrees.- Returns:
- ra field
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makeDecDegreesField
Returns an instance suitable for entering Declination for whichgetValue()
returns degrees.- Returns:
- dec field
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makeSizeDegreesField
Returns an instance suitable for entering an angular size, for whichgetValue()
returns degrees.- Parameters:
info
- description of field content- Returns:
- angular size field
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