Overview  Package   Class  Use  Deprecated  Index
Home >> All >> edu >> mit >> media >> hive >> [ support overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---

edu.mit.media.hive.support
Class BaseCanvas  

java.lang.Object
  java.awt.Component
      java.awt.Canvas
          edu.mit.media.hive.support.BaseCanvas

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

---

public abstract class BaseCanvas

extends java.awt.Canvas

---

Nested Class Summary

 

Nested classes inherited from class java.awt.Canvas

java.awt.Canvas.AccessibleAWTCanvas

 

Nested classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

 

Field Summary
protected  boolean	doubleBuffering
protected  java.awt.Image	imageBuffer
protected  java.awt.Dimension	imageBufferSize

 

Fields inherited from class java.awt.Canvas

 

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

 

Fields inherited from interface java.awt.image.ImageObserver

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

 

Constructor Summary

BaseCanvas()

 

Method Summary
protected  void	adjustDisplayToNewSize()
private  void	buildNewImageBuffer(java.awt.Dimension size)
protected  void	clearImageBuffer()
void	paint(java.awt.Graphics g)           Repaints the canvas window.
protected  void	render()
abstract  void	render(java.awt.Graphics g)
protected  void	setDoubleBuffering(boolean flag)
protected  void	update()
void	update(java.awt.Graphics g)           Updates the canvas in response to a request to repaint() it.

 

Methods inherited from class java.awt.Canvas

addNotify, createBufferStrategy, createBufferStrategy, getAccessibleContext, getBufferStrategy

 

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, validate

 

Methods inherited from class java.lang.Object

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

 

Field Detail

imageBuffer

protected java.awt.Image imageBuffer

---

imageBufferSize

protected java.awt.Dimension imageBufferSize

---

doubleBuffering

protected boolean doubleBuffering

Constructor Detail

BaseCanvas

public BaseCanvas()

Method Detail

adjustDisplayToNewSize

protected void adjustDisplayToNewSize()

---

setDoubleBuffering

protected void setDoubleBuffering(boolean flag)

---

render

protected void render()

---

paint

public void paint(java.awt.Graphics g)

Description copied from class: java.awt.Canvas

Repaints the canvas window. This method should be overridden by a subclass to do something useful, as this method simply paints the window with the background color.

---

clearImageBuffer

protected void clearImageBuffer()

---

buildNewImageBuffer

private void buildNewImageBuffer(java.awt.Dimension size)

---

update

protected void update()

---

update

public void update(java.awt.Graphics g)

Description copied from class: java.awt.Canvas

Updates the canvas in response to a request to repaint() it. The canvas is cleared with the current background colour, before paint() is called to add the new contents. Subclasses which override this method should either call this method via super.update(graphics) or re-implement this behaviour, so as to ensure that the canvas is clear before painting takes place.

---

render

public abstract void render(java.awt.Graphics g)

---

Overview  Package   Class  Use  Deprecated  Index
Home >> All >> edu >> mit >> media >> hive >> [ support overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---