Class Vaadoom

java.lang.Object

com.vaadin.flow.component.Component

org.vaadin.addons.enverhaase.vaadoom.Vaadoom

All Implemented Interfaces:

com.vaadin.flow.component.AttachNotifier, com.vaadin.flow.component.DetachNotifier, com.vaadin.flow.component.HasElement, com.vaadin.flow.component.HasSize, com.vaadin.flow.component.HasStyle, Serializable

@Tag("vaadoom-viewport")
@JsModule("./vaadoom-viewport.js")
public class Vaadoom
extends com.vaadin.flow.component.Component
implements com.vaadin.flow.component.HasSize

Vaadoom — a Flow component that renders a DOOM viewport.

DOOM runs inside a NOMMU Linux which itself runs on Adrian Cable's single-instruction SUBLEQ virtual machine, compiled to WebAssembly and driven from a Web Worker. The worker paints the emulated framebuffer onto an OffscreenCanvas inside the <vaadoom-viewport> custom element.

The DOOM framebuffer is 800×512. By default the component is sized to those pixels; use HasSize.setWidth(String) / HasSize.setHeight(String) (from HasSize) to scale the viewport.

Note: this 0.1.0 release ships a placeholder renderer (an animated test pattern) so the Directory packaging and Flow integration can be verified before the WebAssembly DOOM engine is wired in.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final int	FB_HEIGHT	Native height, in pixels, of the DOOM framebuffer.
static final int	FB_WIDTH	Native width, in pixels, of the DOOM framebuffer.

Constructor Summary

Constructors

Constructor	Description
Vaadoom()	Creates a Vaadoom viewport sized to the native DOOM framebuffer (800×512).

Method Summary

Modifier and Type	Method	Description
boolean	isAutostart()
void	setAutostart(boolean autostart)	Whether the emulator starts automatically when the component is attached.

Methods inherited from class com.vaadin.flow.component.Component

addListener, bindVisible, findAncestor, fireEvent, from, get, getChildren, getElement, getEventBus, getId, getListeners, getLocale, getParent, getTestId, getTranslation, getTranslation, getTranslation, getTranslation, getTranslation, getTranslation, getUI, hasListener, isAttached, isTemplateMapped, isVisible, onAttach, onDetach, onEnabledStateChanged, removeFromParent, scrollIntoView, scrollIntoView, set, setElement, setId, setTestId, setVisible

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.vaadin.flow.component.AttachNotifier

addAttachListener

Methods inherited from interface com.vaadin.flow.component.DetachNotifier

addDetachListener

Methods inherited from interface com.vaadin.flow.component.HasSize

bindHeight, bindWidth, getHeight, getHeightUnit, getMaxHeight, getMaxWidth, getMinHeight, getMinWidth, getWidth, getWidthUnit, setHeight, setHeight, setHeightFull, setMaxHeight, setMaxHeight, setMaxWidth, setMaxWidth, setMinHeight, setMinHeight, setMinWidth, setMinWidth, setSizeFull, setSizeUndefined, setWidth, setWidth, setWidthFull

Methods inherited from interface com.vaadin.flow.component.HasStyle

addClassName, addClassNames, bindClassName, bindClassNames, getClassName, getClassNames, getStyle, hasClassName, removeClassName, removeClassNames, setClassName, setClassName

Field Details

FB_WIDTH

public static final int FB_WIDTH

Native width, in pixels, of the DOOM framebuffer.

See Also:

• Constant Field Values

FB_HEIGHT

public static final int FB_HEIGHT

Native height, in pixels, of the DOOM framebuffer.

See Also:

• Constant Field Values

Constructor Details

Vaadoom

public Vaadoom()

Creates a Vaadoom viewport sized to the native DOOM framebuffer (800×512).

Method Details

setAutostart

public void setAutostart(boolean autostart)

Whether the emulator starts automatically when the component is attached. Defaults to true.

Parameters:

autostart - true to start on attach

isAutostart

public boolean isAutostart()

Returns:

whether the emulator starts automatically on attach