KnobType (Smart GWT EE API 14.0p (2026-01-20))

java.lang.Object
- java.lang.Enum<KnobType>
- - com.smartgwt.client.types.KnobType

All Implemented Interfaces:

ValueEnum, java.io.Serializable, java.lang.Comparable<KnobType>
```
public enum KnobType
extends java.lang.Enum<KnobType>
implements ValueEnum
```
Entries for the DrawItem.knobs array. Each specified knobType will enable some UI allowing the user to manipulate the DrawItem directly.
NOTE: Not all knob types are supported by each DrawItem type. Refer to the DrawItem type's knobs attribute documentation for a list of the supported knob types.

Enum Constant Summary

Enum Constants
Enum Constant and Description
`CONTROLPOINT1` Display a draggable control knob along with a DrawLine indicating the angle between controlPoint1 and the startPoint.
`CONTROLPOINT2` Display a draggable control knob along with a DrawLine indicating the angle between controlPoint2 and the endPoint.
`ENDPOINT` Control knob to manipulate `DrawLine.endPoint`.
`MOVE` Display a control knob for moving the item around.
`RESIZE` Display up to 8 control knobs at the corners specified by `DrawItem.resizeKnobPoints`, allowing the user to drag-resize the item.
`ROTATE` Display a rotation knob above the top resize knob, allowing the user to rotate the item.
`STARTPOINT` Control knob to manipulate `DrawLine.startPoint`.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`java.lang.String`	`getValue()`
`static KnobType`	`valueOf(java.lang.String name)` Returns the enum constant of this type with the specified name.
`static KnobType[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Enum Constant Detail
  - RESIZE
```
public static final KnobType RESIZE
```
    Display up to 8 control knobs at the corners specified by DrawItem.resizeKnobPoints, allowing the user to drag-resize the item. See also DrawItem.cornerResizeKnob and DrawItem.sideResizeKnob.
    If this enumerated value is used in a Component XML file or server-side DataSource descriptor (.ds.xml file), use the value "resize".
  - MOVE
```
public static final KnobType MOVE
```
    Display a control knob for moving the item around. See also DrawItem.moveKnobPoint and DrawItem.moveKnobOffset
    If this enumerated value is used in a Component XML file or server-side DataSource descriptor (.ds.xml file), use the value "move".
  - STARTPOINT
```
public static final KnobType STARTPOINT
```
    Control knob to manipulate DrawLine.startPoint.
    If this enumerated value is used in a Component XML file or server-side DataSource descriptor (.ds.xml file), use the value "startPoint".
  - ENDPOINT
```
public static final KnobType ENDPOINT
```
    Control knob to manipulate DrawLine.endPoint.
    If this enumerated value is used in a Component XML file or server-side DataSource descriptor (.ds.xml file), use the value "endPoint".
  - CONTROLPOINT1
```
public static final KnobType CONTROLPOINT1
```
    Display a draggable control knob along with a DrawLine indicating the angle between controlPoint1 and the startPoint. Dragging the knob will adjust controlPoint1.
    If this enumerated value is used in a Component XML file or server-side DataSource descriptor (.ds.xml file), use the value "controlPoint1".
  - CONTROLPOINT2
```
public static final KnobType CONTROLPOINT2
```
    Display a draggable control knob along with a DrawLine indicating the angle between controlPoint2 and the endPoint. Dragging the knob will adjust controlPoint2.
    If this enumerated value is used in a Component XML file or server-side DataSource descriptor (.ds.xml file), use the value "controlPoint2".
  - ROTATE
```
public static final KnobType ROTATE
```
    Display a rotation knob above the top resize knob, allowing the user to rotate the item. See also DrawItem.rotateKnob.
    If this enumerated value is used in a Component XML file or server-side DataSource descriptor (.ds.xml file), use the value "rotate".
- Method Detail
  - values
```
public static KnobType[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (KnobType c : KnobType.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static KnobType valueOf(java.lang.String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
    
    java.lang.NullPointerException - if the argument is null
  - getValue
```
public java.lang.String getValue()
```
    Specified by:
    
    getValue in interface ValueEnum

Enum KnobType

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

RESIZE

MOVE

STARTPOINT

ENDPOINT

CONTROLPOINT1

CONTROLPOINT2

ROTATE

Method Detail

values

valueOf

getValue