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java.lang.Objectjava.util.EventObject
org.eclipse.swt.internal.SWTEventObject
org.eclipse.swt.events.TypedEvent
org.eclipse.swt.events.GestureEvent
public class GestureEvent
Instances of this class are sent as a result of a touch-based gesture being generated by the user.
GestureListener
,
Sample code and further information,
Serialized FormField Summary | |
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int |
detail
The gesture type. |
boolean |
doit
A flag indicating whether the operation should be allowed. |
double |
magnification
Scale factor to be applied. |
double |
rotation
Number of degrees rotated on the device since the gesture started. |
int |
stateMask
the state of the keyboard modifier keys and mouse masks at the time the event was generated. |
int |
x
Depending on the value of the detail field and the current platform, this field
can mean the x coordinate of the centroid of the touches that make up the gesture (Windows), or the x coordinate of
the screen location of the cursor at the time the gesture was performed (Mac OS X). |
int |
xDirection
The meaning of this field depends on the value of the detail field. |
int |
y
Depending on the value of the detail field and the current platform, this field
can mean the y coordinate of the centroid of the touches that make up the gesture (Windows), or the y component of
the screen location of the cursor at the time the gesture was performed (Mac OS X). |
int |
yDirection
The meaning of this field depends on the value of the detail field. |
Fields inherited from class org.eclipse.swt.events.TypedEvent |
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data, display, time, widget |
Fields inherited from class java.util.EventObject |
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source |
Constructor Summary | |
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GestureEvent(Event e)
Constructs a new instance of this class based on the information in the given untyped event. |
Method Summary | |
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String |
toString()
Returns a string containing a concise, human-readable description of the receiver. |
Methods inherited from class java.util.EventObject |
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getSource |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public int stateMask
SWT.MODIFIER_MASK
,
SWT.BUTTON_MASK
public int detail
SWT.GESTURE_BEGIN
SWT.GESTURE_END
SWT.GESTURE_MAGNIFY
SWT.GESTURE_PAN
SWT.GESTURE_ROTATE
SWT.GESTURE_SWIPE
detail
field determines which fields of the
GestureEvent
contain valid data.
public int x
detail
field and the current platform, this field
can mean the x coordinate of the centroid of the touches that make up the gesture (Windows), or the x coordinate of
the screen location of the cursor at the time the gesture was performed (Mac OS X).
NOTE: The definition of this field is subject to change before the API freeze for 3.7.
public int y
detail
field and the current platform, this field
can mean the y coordinate of the centroid of the touches that make up the gesture (Windows), or the y component of
the screen location of the cursor at the time the gesture was performed (Mac OS X).
NOTE: The definition of this field is subject to change before the API freeze for 3.7.
public double rotation
detail
field is set to GESTURE_ROTATE
.
public int xDirection
detail
field.
If detail
is GESTURE_SWIPE
and non-zero, a positive value indicates a swipe to the right, and a negative value indicates a swipe to the left.
If detail
is GESTURE_PAN
a positive value indicates a pan to the right of that many pixels,
and a negative value indicates a pan to the left of that many pixels.
This field is valid when the detail
field is set to GESTURE_SWIPE
or GESTURE_PAN
.
Both the xDirection
and yDirection
can be valid for an individual gesture.
public int yDirection
detail
field.
If detail
is GESTURE_SWIPE
and non-zero, a positive value indicates a swipe down, and a negative value indicates a swipe up.
If detail
is GESTURE_PAN
a positive value indicates a pan downwards of that many pixels,
and a negative value indicates a pan upwards of that many pixels.
This field is valid when the detail
field is set to GESTURE_SWIPE
or GESTURE_PAN
.
Both the xDirection
and yDirection
can be valid for an individual gesture.
public double magnification
GESTURE_MAGNIFY
received for a magnification this value will be 1.0
and will then fluctuate as the user moves their fingers.
This field is valid when the detail
field is set to GESTURE_MAGNIFY
.
public boolean doit
false
will cancel the operation.
Constructor Detail |
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public GestureEvent(Event e)
e
- the untyped event containing the informationMethod Detail |
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public String toString()
toString
in class TypedEvent
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