de.grogra.imp.awt

Class CanvasAdapter

java.lang.Object

de.grogra.imp.awt.ViewComponentAdapter

de.grogra.imp.awt.CanvasAdapter

All Implemented Interfaces:

ViewComponent, ComponentWrapper, Selectable, Disposable, java.awt.image.ImageObserver, java.lang.Runnable

Direct Known Subclasses:

WireframeCanvas

public abstract class CanvasAdapter
extends ViewComponentAdapter
implements java.awt.image.ImageObserver

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	CanvasAdapter.CanvasComponent

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	antialiasing
protected static java.awt.geom.AffineTransform	IDENTITY
protected ImageAndGraphics	sceneBuffer

Fields inherited from class de.grogra.imp.awt.ViewComponentAdapter

DISPOSED, DISPOSING, RENDERED_IMAGE, RENDERING, REPAINT_MASK

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Fields inherited from interface de.grogra.imp.ViewComponent

ALL, CHANGED, MIN_USER_FLAG, SCENE, SELECTION, TOOLS

Constructor Summary

Constructors

Constructor and Description
CanvasAdapter()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	checkBuffers()
java.lang.Object	getComponent()
java.awt.Graphics2D	getGraphics()
protected java.awt.image.ImageObserver	getObserverForRenderer() Returns an observer which receives the information about the rendered image from a Renderer.
boolean	imageUpdate(java.awt.Image img, int infoflags, int x, int y, int width, int height)
void	initCanvas(java.awt.Component canvas)
protected abstract void	initPaint(int flags, int width, int height)
protected void	initRender(int flags) Performs initialization tasks in preparation for rendering.
void	initView(View view, EventListener listener) Initializes this component.
protected void	invokeRender(int flags) Invoked to perform rendering.
void	makeSnapshot(ObjectConsumer<? super java.awt.image.RenderedImage> callback) Instructs the view component to create a snapshot.
protected void	optionValueChanged(java.lang.String name, java.lang.Object object)
protected abstract void	paintHighlight(int flags, java.awt.Graphics2D g)
protected abstract void	paintScene(int flags, java.awt.Graphics2D g)
protected void	render(int flags) Performs rendering.
void	resetGraphicsTransform()
abstract void	setColor(java.awt.Color color)
void	setColor(java.awt.Color color, int state, boolean showSel)
void	setColor(int color)
void	setColor(int color, int state, boolean showSel)
void	setColor(Tuple3f color)
void	setColor(Tuple3f color, int state, boolean showSel)
static void	writeEPS(Item item, java.lang.Object info, Context ctx)

Methods inherited from class de.grogra.imp.awt.ViewComponentAdapter

checkRepaint, checkRepaintWrapException, dispose, disposeRenderer, getColor, getColor, getFactory, getFontMetrics, getGlobalLOD, getIntColor, getInterruptedException, getOption, getRenderGraphState, getView, initFactory, installListeners, invokeRenderSync, render, render, renderUninterruptibly, repaint, run, toSelection, uninstallListeners

Methods inherited from class java.lang.Object

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

Field Detail

antialiasing

protected boolean antialiasing

IDENTITY

protected static final java.awt.geom.AffineTransform IDENTITY

sceneBuffer

protected ImageAndGraphics sceneBuffer

Constructor Detail

CanvasAdapter

public CanvasAdapter()

Method Detail

checkBuffers

protected void checkBuffers()

getComponent

public java.lang.Object getComponent()

Specified by:

getComponent in interface ComponentWrapper

getGraphics

public final java.awt.Graphics2D getGraphics()

getObserverForRenderer

protected java.awt.image.ImageObserver getObserverForRenderer()

Description copied from class: ViewComponentAdapter

Returns an observer which receives the information about the rendered image from a Renderer. The returned observer has to manage the drawing of the (partially) rendered image on the view component.

Specified by:

getObserverForRenderer in class ViewComponentAdapter

Returns:

an observer receiving the image, or null if this is not supported by this component

imageUpdate

public boolean imageUpdate(java.awt.Image img,
                  int infoflags,
                  int x,
                  int y,
                  int width,
                  int height)

Specified by:

imageUpdate in interface java.awt.image.ImageObserver

initCanvas

public void initCanvas(java.awt.Component canvas)

initPaint

protected abstract void initPaint(int flags,
             int width,
             int height)

initRender

protected void initRender(int flags)

Description copied from class: ViewComponentAdapter

Performs initialization tasks in preparation for rendering. This method is invoked by ViewComponentAdapter.run() in this ViewComponent's own thread.

Specified by:

initRender in class ViewComponentAdapter

Parameters:

flags - combination of bit masks

initView

public void initView(View view,
            EventListener listener)

Description copied from interface: ViewComponent

Initializes this component. This method sets the view within which this view component is used to display the graph. It also sets an event listener. this has to be informed of mouse and keys events within the view component by implementations of this method.

Specified by:

initView in interface ViewComponent

Overrides:

initView in class ViewComponentAdapter

Parameters:

view - the containing view

listener - mouse and key events will be reported to this listener

invokeRender

protected void invokeRender(int flags)

Description copied from class: ViewComponentAdapter

Invoked to perform rendering. This method is invoked by ViewComponentAdapter.run() in this ViewComponent's own thread. Its sole task is to invoke ViewComponentAdapter.invokeRenderSync(int) in the rendering thread (which may be this ViewComponent's thread, the AWT-thread, or another thread, depending on the implementation) in a write-protected context. The invocation has to be synchronously, i.e., if it is in another thread, the current thread has to wait until ViewComponentAdapter.invokeRenderSync(int) has completed.

Specified by:

invokeRender in class ViewComponentAdapter

Parameters:

flags - the flags to pass to ViewComponentAdapter.invokeRenderSync(int)

makeSnapshot

public void makeSnapshot(ObjectConsumer<? super java.awt.image.RenderedImage> callback)

Description copied from interface: ViewComponent

Instructs the view component to create a snapshot. The created snapshot has to be delivered to the provided callback as an instance of RenderedImage. This may happen asynchronously, i.e., in an arbitrary thread.

Specified by:

makeSnapshot in interface ViewComponent

Parameters:

callback - callback which asynchronously receives the snapshot

optionValueChanged

protected void optionValueChanged(java.lang.String name,
                      java.lang.Object object)

Overrides:

optionValueChanged in class ViewComponentAdapter

paintHighlight

protected abstract void paintHighlight(int flags,
                  java.awt.Graphics2D g)

paintScene

protected abstract void paintScene(int flags,
              java.awt.Graphics2D g)
                            throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

render

protected void render(int flags)
               throws java.lang.InterruptedException

Description copied from class: ViewComponentAdapter

Performs rendering. This method is invoked by ViewComponentAdapter.invokeRenderSync(int) in a context where Workbench.current() returns the workbench of this view.

Specified by:

render in class ViewComponentAdapter

Parameters:

flags - combination of bit masks

Throws:

java.lang.InterruptedException - if the rendering has been interrupted

resetGraphicsTransform

public void resetGraphicsTransform()

setColor

public abstract void setColor(java.awt.Color color)

setColor

public void setColor(java.awt.Color color,
            int state,
            boolean showSel)

setColor

public void setColor(int color)

setColor

public void setColor(int color,
            int state,
            boolean showSel)

setColor

public void setColor(Tuple3f color)

setColor

public void setColor(Tuple3f color,
            int state,
            boolean showSel)

writeEPS

public static void writeEPS(Item item,
            java.lang.Object info,
            Context ctx)