class KLed

An LED widget. More...

Definition#include <kled.h>
InheritsQWidget (qt) [public ]
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Detailed Description

Displays a round or rectangular light emitting diode.

It is configurable to five colors, the two on/off states and three styles (or "looks");

It may display itself in a performant flat view, a round view with light spot or a round view sunken in the screen.

enum State { Off, On }

State

Status of the light is on/off.

enum Shape { Rectangular, Circular }

Shape

Shades of the lamp.

enum Look { Flat, Raised, Sunken }

Look

Displays a flat, round or sunken LED.

Displaying the LED flat is less time and color consuming, but not so nice to see.

The sunken LED itself is (certainly) smaller than the round LED because of the 3 shading circles and is most time consuming. Makes sense for LED > 15x15 pixels.

Timings: ( AMD K5/133, Diamond Stealth 64 PCI Graphics, widgetsize 29x29 )

The widget will be updated on the next repaining event.

 KLed (QWidget *parent=0, const char *name=0)

KLed

Constructs a green, round LED widget which will initially be turned on.

 KLed (const QColor &col=Qt::green, QWidget *parent=0, const char *name=0)

KLed

Constructor with the ledcolor, the parent widget, and the name.

The State will be defaulted On and the Look round.

Parameters:
ledcolorInitial color of the LED.
parentWill be handed over to QWidget.
nameWill be handed over to QWidget.

 KLed (const QColor& col, KLed::State st, KLed::Look look, KLed::Shape shape, QWidget *parent=0, const char *name=0)

KLed

Constructor with the ledcolor, ledstate, ledlook, the parent widget, and the name.

Differs from above only in the parameters, which configure all settings.

Parameters:
ledcolorInitial color of the LED.
stateSets the State.
lookSets the Look.
parentWill be handed over to QWidget.
nameWill be handed over to QWidget.

 ~KLed ()

~KLed

Destructor

State  state ()

state

[const]

Returns the current state of the widget (on/off).

See also: State

Shape  shape ()

shape

[const]

QColor  color ()

color

[const]

Returns the color of the widget

See also: Color

Look  look ()

look

[const]

Returns the look of the widget.

See also: Look

int  darkFactor ()

darkFactor

[const]

Returns the factor to darken the LED.

See also: setDarkFactor()

void  setState ( State state )

setState

Sets the state of the widget to On or Off.

The widget will be painted immediately.

Parameters:
stateThe LED state: on or off.

See also: on(), off(), toggle(), toggleState()

void  setShape (Shape s)

setShape

Set the shape of the LED to s.

void  toggleState ()

toggleState

Toggle the state of the LED from Off to On and vice versa.

The widget will be repainted when returning to the main event loop.

void  setColor (const QColor& color)

setColor

Set the color of the widget. The Color is shown with the KLed::On state. The KLed::Off state is shown with QColor.dark() method

The widget calls the update() method, so it will be updated when entering the main event loop.

Parameters:
colorNew color of the LED.

See also: Color

void  setDarkFactor (int darkfactor)

setDarkFactor

Sets the factor to darken the LED in OFF state. Same as QColor::dark(). "darkfactor should be greater than 100, else the LED gets lighter in OFF state. Defaults to 300.

Parameters:
darkfactorsets the factor to darken the LED.

See also: QColor

void  setLook ( Look look )

setLook

Sets the look of the widget.

The look may be flat, round or sunken. The widget calls the update() method, so it will be updated when entering the main event loop.

Parameters:
lookNew look of the LED.

See also: Look

QSize  sizeHint ()

sizeHint

[const virtual]

QSize  minimumSizeHint ()

minimumSizeHint

[const virtual]

void  toggle ()

toggle

[slot]

Toggles the state of the led from Off to On or vice versa.

The widget repaints itself immediately.

void  on ()

on

[slot]

Sets the state of the widget to On.

The widget will be painted immediately.

See also: off(), toggle(), toggleState(), setState()

void  off ()

off

[slot]

Sets the state of the widget to Off.

The widget will be painted immediately.

See also: on(), toggle(), toggleState(), setState()

void  paintFlat ()

paintFlat

[protected virtual]

Paints a circular, flat LED.

void  paintRound ()

paintRound

[protected virtual]

Paints a circular, raised LED.

void  paintSunken ()

paintSunken

[protected virtual]

Paints a circular, sunken LED.

void  paintRect ()

paintRect

[protected virtual]

Paints a rectangular, flat LED.

void  paintRectFrame (bool raised)

paintRectFrame

[protected virtual]

Paints a rectangular LED, either raised or sunken, depending on its argument.

void  paintEvent ( QPaintEvent * )

paintEvent

[protected]

void  virtual_hook ( int id, void* data )

virtual_hook

[protected virtual]