org.razvan.jzx
Class ScreenJava2

java.lang.Object
  java.awt.Component
      java.awt.Canvas
          org.razvan.jzx.BaseScreen
              org.razvan.jzx.ScreenJava2

All Implemented Interfaces:

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

public class ScreenJava2
extends BaseScreen

Screen implementation that is optimized for running in a JDK1.2 VM.

This implementation makes use of a BufferedImage object, whose setRGB() method is very fast for updating a large array of new RGB values.

Author:

Razvan Surdulescu (c) 2001 - 2006, Erik Kunze (c) 1995, 1996, 1997, Des Herriott (c) 1993, 1994
You may use and distribute this software for free provided you include this copyright notice. You may not sell this software, use my name for publicity reasons or modify the code without permission from me.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.Canvas

java.awt.Canvas.AccessibleAWTCanvas

Nested classes/interfaces inherited from class java.awt.Component

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

Field Summary

Fields inherited from class org.razvan.jzx.BaseScreen

ATTR_LENGTH, ATTR_START, BLACK, BLUE, BORDER_PIXELS, BRIGHT, BRIGHT_BLACK, BRIGHT_BLUE, BRIGHT_CYAN, BRIGHT_GREEN, BRIGHT_MAGENTA, BRIGHT_RED, BRIGHT_WHITE, BRIGHT_YELLOW, COLS, CYAN, FLASH, GREEN, INK, m_borderColor, m_borderDirty, m_flashPhase, m_inkTable, m_logger, m_offscreenBorder, m_offscreenBorderGraphics, m_offscreenImage, m_offscreenImageGraphics, m_paperTable, m_scale, m_screenChanged, m_screenDirty, m_screenHeight, m_screenWidth, m_spectrum, MAGENTA, PAPER, PIXEL_LENGTH, PIXEL_START, RED, ROWS, s_colorPalette, s_rgbPalette, WHITE, X_PIXELS, Y_PIXELS, YELLOW

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

ScreenJava2()

Method Summary

protected java.awt.Image	createCompatibleImage(int width, int height) Create an Image that is compatible with the screen type and color depth.
protected void	draw8(int x, int y, int pix8, int attr8) Draw a given byte onto the screen using the given attribute, at the given location.
void	dumpScreenshot()
void	init(BaseSpectrum spectrum, ILogger logger) Compute the size of the segment that will be drawn into the BufferedImage, and allocate it.
protected void	setScale(int scale) Update the segment size and re-allocate it for the new scale value.

Methods inherited from class org.razvan.jzx.BaseScreen

attrTouch, clear, clear, endRender, flash, getCursorX, getCursorY, getInstance, getMinimumSize, getPage, getPreferredSize, load, paint, print, print, println, println, reset, screenTouch, setBorderColor, setCursor, setPage, startRender, terminate, update

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, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, 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, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, 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, setMaximumSize, setMinimumSize, setName, setPreferredSize, 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

Constructor Detail

ScreenJava2

public ScreenJava2()

Method Detail

init

public void init(BaseSpectrum spectrum,
                 ILogger logger)

Compute the size of the segment that will be drawn into the BufferedImage, and allocate it.

Overrides:

init in class BaseScreen

setScale

protected void setScale(int scale)

Update the segment size and re-allocate it for the new scale value.

Overrides:

setScale in class BaseScreen

createCompatibleImage

protected java.awt.Image createCompatibleImage(int width,
                                               int height)

Create an Image that is compatible with the screen type and color depth.

Overrides:

createCompatibleImage in class BaseScreen

draw8

protected void draw8(int x,
                     int y,
                     int pix8,
                     int attr8)

Draw a given byte onto the screen using the given attribute, at the given location.

Specified by:

draw8 in class BaseScreen

Parameters:

x - The X coordinate where the pixels should be drawn onto the Canvas object.

y - The Y coordinat where the pixels should be drawn onto the Canvas object.

pix8 - The 8 bits to draw starting at (X,Y) ending at (X+8,Y).

attr8 - The attributes used to draw the 8 bits.

dumpScreenshot

public void dumpScreenshot()

Overrides:

dumpScreenshot in class BaseScreen