usb.jphoto
Class DevicePropDesc

java.lang.Object
  |
  +--usb.jphoto.Buffer
        |
        +--usb.jphoto.Container
              |
              +--usb.jphoto.Data
                    |
                    +--usb.jphoto.DevicePropDesc

public class DevicePropDesc

extends Data

DeviceProperty descriptions provide metadata (code, type, factory defaults, is-it-writable, and perhaps value ranges or domains) and current values of device properties.

The values exposed are typically java.lang.Integer, java.lang.Long, "int" or "long" arrays, or Strings, and must be cast to more specific types. The 64 bit integral types are supported, but not the 128 bit ones; unsigned 64 bit values may not print as intended.

Inner Class Summary

static class

DevicePropDesc.Range This class describes value ranges by minima, maxima, and permissible increments.

Field Summary

static int	Artist
static int	BatteryLevel
static int	BurstInterval
static int	BurstNumber
static int	CaptureDelay
static int	CompressionSetting
static int	Contrast
static int	CopyrightInfo
static int	DateTime
static int	DigitalZoom
static int	EffectMode
static int	ExposureBiasCompensation
static int	ExposureIndex
static int	ExposureMeteringMode
static int	ExposureProgramMode
static int	ExposureTime
static int	FlashMode
static int	FocalLength
static int	FocusDistance
static int	FocusMeteringMode
static int	FocusMode
static int	FStop
static int	FunctionalMode
static int	ImageSize
static int	RGBGain
static int	Sharpness
static int	StillCaptureMode
static int	TimelapseInterval
static int	TimelapseNumber
static int	UploadURL
static int	WhiteBalance

Method Summary

java.lang.String	getCodeName(int code) Subclasses override this to map PTP codes to their names; the results are always interned strings, so that they can be efficiently compared ("=", "!=") against constants.
java.lang.Object	getDefault() Returns the factory default value (treat as immutable!)
java.util.Vector	getEnumeration() Returns any enumerated options for this property's value, or null
static int	getPropertyCode(java.lang.String name) Maps standard property names to property codes.
DevicePropDesc.Range	getRange() Returns any range constraints for this property's value, or null
java.lang.Object	getValue() Returns the current value (treat as immutable!)
boolean	isWritable() Returns true if the property is writable

Methods inherited from class usb.jphoto.Data

toString

Methods inherited from class usb.jphoto.Container

getBlockType, getBlockTypeName, getCode, getCodeString, getCodeString, getCodeType, getLength, getXID

Methods inherited from class usb.jphoto.Buffer

getS16, getS32, getS64, getS8, getString, getU16, getU8, nextS16, nextS16Array, nextS32, nextS32Array, nextS64, nextS64Array, nextS8, nextS8Array, nextString, nextU16, nextU16Array, nextU8, nextU8Array, put16, put32, put64, put8, putString

Methods inherited from class java.lang.Object

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

Field Detail

BatteryLevel

public static final int BatteryLevel

FunctionalMode

public static final int FunctionalMode

ImageSize

public static final int ImageSize

CompressionSetting

public static final int CompressionSetting

WhiteBalance

public static final int WhiteBalance

RGBGain

public static final int RGBGain

FStop

public static final int FStop

FocalLength

public static final int FocalLength

FocusDistance

public static final int FocusDistance

FocusMode

public static final int FocusMode

ExposureMeteringMode

public static final int ExposureMeteringMode

FlashMode

public static final int FlashMode

ExposureTime

public static final int ExposureTime

ExposureProgramMode

public static final int ExposureProgramMode

ExposureIndex

public static final int ExposureIndex

ExposureBiasCompensation

public static final int ExposureBiasCompensation

DateTime

public static final int DateTime

CaptureDelay

public static final int CaptureDelay

StillCaptureMode

public static final int StillCaptureMode

Contrast

public static final int Contrast

Sharpness

public static final int Sharpness

DigitalZoom

public static final int DigitalZoom

EffectMode

public static final int EffectMode

BurstNumber

public static final int BurstNumber

BurstInterval

public static final int BurstInterval

TimelapseNumber

public static final int TimelapseNumber

TimelapseInterval

public static final int TimelapseInterval

FocusMeteringMode

public static final int FocusMeteringMode

UploadURL

public static final int UploadURL

Artist

public static final int Artist

CopyrightInfo

public static final int CopyrightInfo

Method Detail

isWritable

public boolean isWritable()

Returns true if the property is writable

getValue

public java.lang.Object getValue()

Returns the current value (treat as immutable!)

getDefault

public java.lang.Object getDefault()

Returns the factory default value (treat as immutable!)

getCodeName

public java.lang.String getCodeName(int code)

Description copied from class: Container

Subclasses override this to map PTP codes to their names; the results are always interned strings, so that they can be efficiently compared ("=", "!=") against constants. Such per-instance methods permit type-specific subclasses (and vendor extensions) to name their code values, invoking superclass methods to name all other codes.

Overrides:

getCodeName in class Data

getPropertyCode

public static int getPropertyCode(java.lang.String name)

Maps standard property names to property codes. Case is ignored in these comparisons.

Parameters:

name - string identifying that property.

Returns:

device property code, or -1

getRange

public DevicePropDesc.Range getRange()

Returns any range constraints for this property's value, or null

getEnumeration

public java.util.Vector getEnumeration()

Returns any enumerated options for this property's value, or null