TightVnc

Class VncCanvas

java.lang.Object

java.awt.Component

java.awt.Canvas

TightVnc.VncCanvas

All Implemented Interfaces:

java.awt.event.KeyListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible

Direct Known Subclasses:

GazeVncCanvas, VncCanvas2

public class VncCanvas
extends java.awt.Canvas
implements java.awt.event.KeyListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener

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.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

Fields

Modifier and Type	Field and Description
int	bytesPixel
(package private) java.awt.image.ColorModel	cm24
(package private) java.awt.image.ColorModel	cm8
(package private) java.awt.Color[]	colors
protected int	cursorHeight
protected int	cursorWidth
protected int	cursorX
protected int	cursorY
private java.awt.Color	hextile_bg
private java.awt.Color	hextile_fg
protected int	hotX
protected int	hotY
(package private) boolean	inputEnabled
(package private) java.awt.Rectangle	jpegRect
(package private) int	maxHeight
(package private) int	maxWidth
protected java.awt.Graphics	memGraphics
protected java.awt.Image	memImage
(package private) int	origCursorHeight
(package private) int	origCursorWidth
(package private) int	origHotX
(package private) int	origHotY
(package private) int[]	pixels24
(package private) byte[]	pixels8
(package private) java.awt.image.MemoryImageSource	pixelsSource
(package private) java.awt.Image	rawPixelsImage
protected RfbProto	rfb
protected int	scaledHeight
protected int	scaledWidth
(package private) int	scalingFactor
protected boolean	showSoftCursor
protected java.awt.Image	softCursor
(package private) java.awt.image.MemoryImageSource	softCursorSource
protected int	statNumBytesDecoded
protected int	statNumBytesEncoded
protected int	statNumPixelRects
protected int	statNumRectsCopy
protected int	statNumRectsHextile
protected int	statNumRectsRaw
protected int	statNumRectsTight
protected int	statNumRectsTightJPEG
protected int	statNumRectsZRLE
protected int	statNumTotalRects
protected int	statNumUpdates
protected long	statStartTime
(package private) java.util.zip.Inflater[]	tightInflaters
(package private) static int	tightZlibBufferSize
protected VncViewer	viewer
(package private) byte[]	zlibBuf
(package private) int	zlibBufLen
(package private) java.util.zip.Inflater	zlibInflater
(package private) byte[]	zrleBuf
(package private) int	zrleBufLen
(package private) ZlibInStream	zrleInStream
(package private) boolean	zrleRecWarningShown
(package private) int[]	zrleTilePixels24
(package private) byte[]	zrleTilePixels8

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

Constructors

Constructor and Description
VncCanvas(VncViewer v)
VncCanvas(VncViewer v, int maxWidth_, int maxHeight_)

Method Summary

Methods

Modifier and Type	Method and Description
(package private) void	createSoftCursor()
(package private) java.awt.image.MemoryImageSource	decodeCursorShape(int encodingType, int width, int height)
(package private) void	decodeGradientData(int x, int y, int w, int h, byte[] buf)
(package private) void	decodeMonoData(int x, int y, int w, int h, byte[] src, byte[] palette)
(package private) void	decodeMonoData(int x, int y, int w, int h, byte[] src, int[] palette)
void	enableInput(boolean enable)
java.awt.Dimension	getMaximumSize()
java.awt.Dimension	getMinimumSize()
java.awt.Dimension	getPreferredSize()
void	handleCopyRect(int x, int y, int w, int h)
void	handleCoRRERect(int x, int y, int w, int h)
void	handleCursorShapeUpdate(int encodingType, int xhot, int yhot, int width, int height)
void	handleHextileRect(int x, int y, int w, int h)
void	handleHextileSubrect(int tx, int ty, int tw, int th)
void	handleRawRect(int x, int y, int w, int h)
void	handleRawRect(int x, int y, int w, int h, boolean paint)
void	handleRRERect(int x, int y, int w, int h)
void	handleTightRect(int x, int y, int w, int h)
void	handleUpdatedPixels(int x, int y, int w, int h)
void	handleUpdatedZrleTile(int x, int y, int w, int h)
void	handleZlibRect(int x, int y, int w, int h)
void	handleZRLERect(int x, int y, int w, int h)
boolean	imageUpdate(java.awt.Image img, int infoflags, int x, int y, int width, int height)
void	keyPressed(java.awt.event.KeyEvent evt)
void	keyReleased(java.awt.event.KeyEvent evt)
void	keyTyped(java.awt.event.KeyEvent evt)
void	mouseClicked(java.awt.event.MouseEvent evt)
void	mouseDragged(java.awt.event.MouseEvent evt)
void	mouseEntered(java.awt.event.MouseEvent evt)
void	mouseExited(java.awt.event.MouseEvent evt)
void	mouseMoved(java.awt.event.MouseEvent evt)
void	mousePressed(java.awt.event.MouseEvent evt)
void	mouseReleased(java.awt.event.MouseEvent evt)
void	paint(java.awt.Graphics g)
void	paintScaledFrameBuffer(java.awt.Graphics g)
void	processLocalKeyEvent(java.awt.event.KeyEvent evt)
void	processLocalMouseEvent(java.awt.event.MouseEvent evt, boolean moved)
void	processNormalProtocol()
(package private) int	readPixel(InStream is)
(package private) void	readPixels(InStream is, int[] dst, int count)
(package private) void	readZrlePackedPixels(int tw, int th, int[] palette, int palSize)
(package private) void	readZrlePackedRLEPixels(int tw, int th, int[] palette)
(package private) void	readZrlePalette(int[] palette, int palSize)
(package private) void	readZrlePlainRLEPixels(int tw, int th)
(package private) void	readZrleRawPixels(int tw, int th)
protected void	resetStats()
void	resizeDesktopFrame()
protected void	scheduleRepaint(int x, int y, int w, int h)
void	setPixelFormat()
void	softCursorFree()
void	softCursorMove(int x, int y)
void	update(java.awt.Graphics g)
protected void	updateFramebufferSize()

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, getBaseline, getBaselineResizeBehavior, 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, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, 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, revalidate, 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

Field Detail

viewer

protected VncViewer viewer

rfb

protected RfbProto rfb

cm8

java.awt.image.ColorModel cm8

cm24

java.awt.image.ColorModel cm24

colors

java.awt.Color[] colors

bytesPixel

public int bytesPixel

maxWidth

int maxWidth

maxHeight

int maxHeight

scalingFactor

int scalingFactor

scaledWidth

protected int scaledWidth

scaledHeight

protected int scaledHeight

memImage

protected java.awt.Image memImage

memGraphics

protected java.awt.Graphics memGraphics

rawPixelsImage

java.awt.Image rawPixelsImage

pixelsSource

java.awt.image.MemoryImageSource pixelsSource

pixels8

byte[] pixels8

pixels24

int[] pixels24

statStartTime

protected long statStartTime

statNumUpdates

protected int statNumUpdates

statNumTotalRects

protected int statNumTotalRects

statNumPixelRects

protected int statNumPixelRects

statNumRectsTight

protected int statNumRectsTight

statNumRectsTightJPEG

protected int statNumRectsTightJPEG

statNumRectsZRLE

protected int statNumRectsZRLE

statNumRectsHextile

protected int statNumRectsHextile

statNumRectsRaw

protected int statNumRectsRaw

statNumRectsCopy

protected int statNumRectsCopy

statNumBytesEncoded

protected int statNumBytesEncoded

statNumBytesDecoded

protected int statNumBytesDecoded

zrleBuf

byte[] zrleBuf

zrleBufLen

int zrleBufLen

zrleTilePixels8

byte[] zrleTilePixels8

zrleTilePixels24

int[] zrleTilePixels24

zrleInStream

ZlibInStream zrleInStream

zrleRecWarningShown

boolean zrleRecWarningShown

zlibBuf

byte[] zlibBuf

zlibBufLen

int zlibBufLen

zlibInflater

java.util.zip.Inflater zlibInflater

tightZlibBufferSize

static final int tightZlibBufferSize

See Also:

Constant Field Values

tightInflaters

java.util.zip.Inflater[] tightInflaters

jpegRect

java.awt.Rectangle jpegRect

inputEnabled

boolean inputEnabled

hextile_bg

private java.awt.Color hextile_bg

hextile_fg

private java.awt.Color hextile_fg

showSoftCursor

protected boolean showSoftCursor

softCursorSource

java.awt.image.MemoryImageSource softCursorSource

softCursor

protected java.awt.Image softCursor

cursorX

protected int cursorX

cursorY

protected int cursorY

cursorWidth

protected int cursorWidth

cursorHeight

protected int cursorHeight

origCursorWidth

int origCursorWidth

origCursorHeight

int origCursorHeight

hotX

protected int hotX

hotY

protected int hotY

origHotX

int origHotX

origHotY

int origHotY

Constructor Detail

VncCanvas

public VncCanvas(VncViewer v)
          throws java.io.IOException

Throws:

java.io.IOException

VncCanvas

public VncCanvas(VncViewer v,
         int maxWidth_,
         int maxHeight_)
          throws java.io.IOException

Throws:

java.io.IOException

Method Detail

createSoftCursor

void createSoftCursor()

decodeCursorShape

java.awt.image.MemoryImageSource decodeCursorShape(int encodingType,
                                                 int width,
                                                 int height)
                                             throws java.io.IOException

Throws:

java.io.IOException

decodeGradientData

void decodeGradientData(int x,
                      int y,
                      int w,
                      int h,
                      byte[] buf)

decodeMonoData

void decodeMonoData(int x,
                  int y,
                  int w,
                  int h,
                  byte[] src,
                  byte[] palette)

decodeMonoData

void decodeMonoData(int x,
                  int y,
                  int w,
                  int h,
                  byte[] src,
                  int[] palette)

enableInput

public void enableInput(boolean enable)

getMaximumSize

public java.awt.Dimension getMaximumSize()

Overrides:

getMaximumSize in class java.awt.Component

getMinimumSize

public java.awt.Dimension getMinimumSize()

Overrides:

getMinimumSize in class java.awt.Component

getPreferredSize

public java.awt.Dimension getPreferredSize()

Overrides:

getPreferredSize in class java.awt.Component

handleCopyRect

public void handleCopyRect(int x,
                  int y,
                  int w,
                  int h)
                    throws java.io.IOException

Throws:

java.io.IOException

handleCoRRERect

public void handleCoRRERect(int x,
                   int y,
                   int w,
                   int h)
                     throws java.io.IOException

Throws:

java.io.IOException

handleCursorShapeUpdate

public void handleCursorShapeUpdate(int encodingType,
                           int xhot,
                           int yhot,
                           int width,
                           int height)
                             throws java.io.IOException

Throws:

java.io.IOException

handleHextileRect

public void handleHextileRect(int x,
                     int y,
                     int w,
                     int h)
                       throws java.io.IOException

Throws:

java.io.IOException

handleHextileSubrect

public void handleHextileSubrect(int tx,
                        int ty,
                        int tw,
                        int th)
                          throws java.io.IOException

Throws:

java.io.IOException

handleRawRect

public void handleRawRect(int x,
                 int y,
                 int w,
                 int h)
                   throws java.io.IOException

Throws:

java.io.IOException

handleRawRect

public void handleRawRect(int x,
                 int y,
                 int w,
                 int h,
                 boolean paint)
                   throws java.io.IOException

Throws:

java.io.IOException

handleRRERect

public void handleRRERect(int x,
                 int y,
                 int w,
                 int h)
                   throws java.io.IOException

Throws:

java.io.IOException

handleTightRect

public void handleTightRect(int x,
                   int y,
                   int w,
                   int h)
                     throws java.lang.Exception

Throws:

java.lang.Exception

handleUpdatedPixels

public void handleUpdatedPixels(int x,
                       int y,
                       int w,
                       int h)

handleUpdatedZrleTile

public void handleUpdatedZrleTile(int x,
                         int y,
                         int w,
                         int h)

handleZlibRect

public void handleZlibRect(int x,
                  int y,
                  int w,
                  int h)
                    throws java.lang.Exception

Throws:

java.lang.Exception

handleZRLERect

public void handleZRLERect(int x,
                  int y,
                  int w,
                  int h)
                    throws java.lang.Exception

Throws:

java.lang.Exception

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

Overrides:

imageUpdate in class java.awt.Component

keyPressed

public void keyPressed(java.awt.event.KeyEvent evt)

Specified by:

keyPressed in interface java.awt.event.KeyListener

keyReleased

public void keyReleased(java.awt.event.KeyEvent evt)

Specified by:

keyReleased in interface java.awt.event.KeyListener

keyTyped

public void keyTyped(java.awt.event.KeyEvent evt)

Specified by:

keyTyped in interface java.awt.event.KeyListener

mouseClicked

public void mouseClicked(java.awt.event.MouseEvent evt)

Specified by:

mouseClicked in interface java.awt.event.MouseListener

mouseDragged

public void mouseDragged(java.awt.event.MouseEvent evt)

Specified by:

mouseDragged in interface java.awt.event.MouseMotionListener

mouseEntered

public void mouseEntered(java.awt.event.MouseEvent evt)

Specified by:

mouseEntered in interface java.awt.event.MouseListener

mouseExited

public void mouseExited(java.awt.event.MouseEvent evt)

Specified by:

mouseExited in interface java.awt.event.MouseListener

mouseMoved

public void mouseMoved(java.awt.event.MouseEvent evt)

Specified by:

mouseMoved in interface java.awt.event.MouseMotionListener

mousePressed

public void mousePressed(java.awt.event.MouseEvent evt)

Specified by:

mousePressed in interface java.awt.event.MouseListener

mouseReleased

public void mouseReleased(java.awt.event.MouseEvent evt)

Specified by:

mouseReleased in interface java.awt.event.MouseListener

paint

public void paint(java.awt.Graphics g)

Overrides:

paint in class java.awt.Canvas

paintScaledFrameBuffer

public void paintScaledFrameBuffer(java.awt.Graphics g)

processLocalKeyEvent

public void processLocalKeyEvent(java.awt.event.KeyEvent evt)

processLocalMouseEvent

public void processLocalMouseEvent(java.awt.event.MouseEvent evt,
                          boolean moved)

processNormalProtocol

public void processNormalProtocol()
                           throws java.lang.Exception

Throws:

java.lang.Exception

readPixel

int readPixel(InStream is)
        throws java.lang.Exception

Throws:

java.lang.Exception

readPixels

void readPixels(InStream is,
              int[] dst,
              int count)
          throws java.lang.Exception

Throws:

java.lang.Exception

readZrlePackedPixels

void readZrlePackedPixels(int tw,
                        int th,
                        int[] palette,
                        int palSize)
                    throws java.lang.Exception

Throws:

java.lang.Exception

readZrlePackedRLEPixels

void readZrlePackedRLEPixels(int tw,
                           int th,
                           int[] palette)
                       throws java.lang.Exception

Throws:

java.lang.Exception

readZrlePalette

void readZrlePalette(int[] palette,
                   int palSize)
               throws java.lang.Exception

Throws:

java.lang.Exception

readZrlePlainRLEPixels

void readZrlePlainRLEPixels(int tw,
                          int th)
                      throws java.lang.Exception

Throws:

java.lang.Exception

readZrleRawPixels

void readZrleRawPixels(int tw,
                     int th)
                 throws java.lang.Exception

Throws:

java.lang.Exception

resetStats

protected void resetStats()

resizeDesktopFrame

public void resizeDesktopFrame()

scheduleRepaint

protected void scheduleRepaint(int x,
                   int y,
                   int w,
                   int h)

setPixelFormat

public void setPixelFormat()
                    throws java.io.IOException

Throws:

java.io.IOException

softCursorFree

public void softCursorFree()

softCursorMove

public void softCursorMove(int x,
                  int y)

update

public void update(java.awt.Graphics g)

Overrides:

update in class java.awt.Canvas

updateFramebufferSize

protected void updateFramebufferSize()