ej.microui.led

Interface LLUILedImpl

public interface LLUILedImpl

This interface holds all methods required by MicroUI implementation to be compatible with the MicroUI LEDs engine.

An implementation of this interface is required to run a MicroUI application which uses the class MicroUI Led; otherwise some errors will be thrown at runtime and the application will not able to run correctly. This implementation should be a widget which at least allows to show an image when the LED is off and another image when the LED is on.

The LED engine retrieves on startup all widgets which implement this interface (using method Device.getDevice().getWidgets(LLUILedImpl.class)). Then it considers it can target a LED using the widget label (Widget.getLabel()). A widget label must be an integer; it allows to retrieve a LED from an integer index. The first LED index must be 0 and last LED index must be Device.getDevice().getWidgets(LLUILedImpl.class).size() - 1.

• If an index in the range does not target a valid widget, the LED action (on/off) is not performed but no error is thrown.
• If a LED has an "integer" label smaller than 0, this LED will be never used.
• If a LED has an "integer" label higher or equals to Device.getDevice().getWidgets(LLUILedImpl.class).size(), this LED will be never used.
• If a LED has a "non-interger" label this LED will be never used.

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_INTENSITY Maximal value of intensity according MicroUI specification.
static int	MIN_INTENSITY Minimal value of intensity according MicroUI specification.

Method Summary

Modifier and Type	Method and Description
int	getIntensity() Gets the intensity of this led.
void	setIntensity(int intensity) Sets the intensity of this led.

Field Detail

MIN_INTENSITY

static final int MIN_INTENSITY

Minimal value of intensity according MicroUI specification.

See Also:

Constant Field Values

MAX_INTENSITY

static final int MAX_INTENSITY

Maximal value of intensity according MicroUI specification.

See Also:

Constant Field Values

Method Detail

setIntensity

void setIntensity(int intensity)

Sets the intensity of this led.

Parameters:

intensity - the intensity to set.

getIntensity

int getIntensity()

Gets the intensity of this led.

Returns:

intensity the led intensity.