Package eu.svjatoslav.sixth.e3d.gui

Class RenderingContext

java.lang.Object

eu.svjatoslav.sixth.e3d.gui.RenderingContext

public class RenderingContext
extends Object

Rendering context that contains all the information that is needed to render the scene.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	bufferedImageType
final Point2D	centerCoordinate	Center of the screen in screen space (pixels).
int	frameNumber	Number of frame that is currently being rendered.
final Graphics2D	graphics
final int	height	Height of the rendering area in pixels.
final byte[]	pixels	Pixels of the rendering area.
final int	width	Width of the rendering area in pixels.
final double	zoom	Zoom factor.

Constructor Summary

Constructors

Constructor	Description
RenderingContext(int width, int height)

Method Summary

Modifier and Type	Method	Description
MouseEvent	getMouseEvent()
boolean	handlePossibleComponentMouseEvent()
void	prepareForNewFrameRendering()
void	setCurrentObjectUnderMouseCursor(MouseInteractionController currentObjectUnderMouseCursor)	Called when given object was detected under mouse cursor, while processing mouseEvent.
void	setMouseEvent(MouseEvent mouseEvent)

Methods inherited from class java.lang.Object

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

Field Details

bufferedImageType

public static final int bufferedImageType

See Also:

• Constant Field Values

graphics

public final Graphics2D graphics

pixels

public final byte[] pixels

Pixels of the rendering area. Each pixel is represented by 4 bytes: alpha, blue, green, red.

width

public final int width

Width of the rendering area in pixels.

height

public final int height

Height of the rendering area in pixels.

centerCoordinate

public final Point2D centerCoordinate

Center of the screen in screen space (pixels). This is the point where (0,0) coordinate of the world space is rendered.

zoom

public final double zoom

Zoom factor. The bigger the value, the more zoomed in the view is.

frameNumber

public int frameNumber

Number of frame that is currently being rendered. Every frame has its own number.

Constructor Details

RenderingContext

public RenderingContext(int width,
 int height)

Method Details

prepareForNewFrameRendering

public void prepareForNewFrameRendering()

getMouseEvent

public MouseEvent getMouseEvent()

setMouseEvent

public void setMouseEvent(MouseEvent mouseEvent)

setCurrentObjectUnderMouseCursor

public void setCurrentObjectUnderMouseCursor(MouseInteractionController currentObjectUnderMouseCursor)

Called when given object was detected under mouse cursor, while processing mouseEvent. Because objects are rendered back to front. The last method caller will set the top-most object, if there are multiple objects under mouse cursor.

handlePossibleComponentMouseEvent

public boolean handlePossibleComponentMouseEvent()

Returns:

true if view update is needed as a consequence of this mouse event.