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public interface HAdjustmentInputPreferred
A component which implements HAdjustmentInputPreferred
indicates that this component expects to receive HAdjustmentEvent
input events.
The system must provide a means of generating
HAdjustmentEvent
events as
necessary. For platforms with a restricted number of physical keys
this may involve a "virtual keyboard" or similar
mechanism. The system might use the information returned by the method
HOrientable.getOrientation()
of the super interface to select
appropriate key mappings for this event. The mechanisms to generate
this event shall not be effective while the component is disabled
(see HComponent.setEnabled(boolean)
).
Widgets of HAVi compliant applications implementing the
HAdjustmentInputPreferred
interface must have HComponent
in their
inheritance tree.
Note that the java.awt.Component
method
isFocusTraversable
shall always return true for a
java.awt.Component
implementing this interface.
Field Summary |
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Fields inherited from interface org.havi.ui.HOrientable |
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ORIENT_BOTTOM_TO_TOP, ORIENT_LEFT_TO_RIGHT, ORIENT_RIGHT_TO_LEFT, ORIENT_TOP_TO_BOTTOM |
Method Summary | |
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boolean |
getAdjustMode()
Get the adjustment mode for this HAdjustmentInputPreferred . |
void |
processHAdjustmentEvent(HAdjustmentEvent evt)
Process an HAdjustmentEvent
sent to this HAdjustmentInputPreferred . |
void |
setAdjustMode(boolean adjust)
Set the adjustment mode for this HAdjustmentInputPreferred . |
Methods inherited from interface org.havi.ui.HOrientable |
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getOrientation, setOrientation |
Method Detail |
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boolean getAdjustMode()
HAdjustmentInputPreferred
. If the returned value is true
the
component is in adjustment mode, and its value may be changed on
receipt of HAdjustmentEvent.ADJUST_LESS
and
HAdjustmentEvent.ADJUST_MORE
events.
The component is switched into and out of adjustment mode on
receiving HAdjustmentEvent.ADJUST_START_CHANGE
HAdjustmentEvent.ADJUST_END_CHANGE
events. Note that these events are ignored, if the component is
disabled.
HComponent.setEnabled(boolean)
void setAdjustMode(boolean adjust)
HAdjustmentInputPreferred
.
This method is provided for the convenience of component implementors. Interoperable applications shall not call this method. It cannot be made protected because interfaces cannot have protected methods.
Calls to this method shall be ignored, if the component is disabled.
adjust
- true to switch this component into adjustment mode,
false otherwise.getAdjustMode()
,
HComponent.setEnabled(boolean)
void processHAdjustmentEvent(HAdjustmentEvent evt)
HAdjustmentEvent
sent to this HAdjustmentInputPreferred
.
Widgets implementing this interface
shall ignore HAdjustmentEvents
, while the
component is disabled.
evt
- the HAdjustmentEvent
to process.HComponent.setEnabled(boolean)
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