: Class VisionApplet

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SUMMARY: INNER | FIELD | CONSTR | METHOD

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Class VisionApplet

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--java.applet.Applet
                          |
                          +--javax.swing.JApplet
                                |
                                +--VisionApplet

Direct Known Subclasses:: SAdapThreshScreen, SAffineScreen, SCannyScreen, SClassifyScreen, SContrastStretchScreen, SExponentialScreen, SHistogramScreen, SImageBitShiftScreen, SImageLabelScreen, SImageNotScreen, SLogScreen, SRandomNoiseScreen, SReflectScreen, SRobertsScreen, SRotateScreen, SScaleScreen, SSobelScreen, STranslateScreen, SZeroCrossingScreen

public class VisionApplet
extends javax.swing.JApplet

VisionApplet is a subclass of the JApplet class which is tailored for use in the HIPR application. It is used with operators which only require the use of one input image.

Author:: Timothy Sharman
See Also:: Serialized Form

Inner Class Summary
`class`	`VisionApplet.PixelListener` Handles the actions performed when the mouse is used in the interface to find information about image pixels.

Inner classes inherited from class javax.swing.JApplet

javax.swing.JApplet.AccessibleJApplet

Field Summary
`int`	`actualx` Co-ordiante points for finding the intensity value at a selected point
`int`	`actualy` Co-ordiante points for finding the intensity value at a selected point
`javax.swing.JPanel`	`bl` The bottom left panel
`java.awt.GridBagConstraints`	`blc` The constraints for the bottom left panel
`javax.swing.JLabel`	`blIntensity` The intensity label for the bottom left panel
`java.awt.GridBagLayout`	`bllayout` The layout for the bottom left panel
`VisionApplet.PixelListener`	`blpl` The pixel listener for the input image
`javax.swing.JLabel`	`blPosition` The position label for the bottom left panel
`javax.swing.JPanel`	`br` The bottom right panel
`java.awt.GridBagConstraints`	`brc` The constraints for the bottom right panel
`javax.swing.JLabel`	`brIntensity` The intensity label for the bottom right panel
`java.awt.GridBagLayout`	`brlayout` The layout for the bottom right panel
`VisionApplet.PixelListener`	`brpl` The pixel listener for the output image
`javax.swing.JLabel`	`brPosition` The position label for the bottom right panel
`java.awt.Container`	`container` The main container for the applet
`int`	`d_h` The output image height
`int`	`d_w` The output image width
`java.awt.Image`	`dest` The output image
`int[]`	`dest_1d` The output image array
`ImageCanvas`	`dest_canvas` The output image canvas
`int`	`i_h` The input image height
`int`	`i_w` The input image width
`java.lang.String`	`image_url` The URL of the initial image
`javax.swing.JTextField`	`input` The textfield used to get the URL of the input image
`javax.swing.JLabel`	`insize` The label for the input image size
`javax.swing.JButton`	`load_image` The load button
`javax.swing.JPanel`	`mid` The middle panel
`java.awt.GridBagConstraints`	`midc` The constraints for the middle panel
`java.awt.GridBagLayout`	`midlayout` The layout for the middle panel
`javax.swing.JLabel`	`output` The label for the output image
`javax.swing.JLabel`	`outsize` The label for the output image size
`java.awt.Image`	`src` The input image
`int[]`	`src_1d` The input image array
`ImageCanvas`	`src_canvas` The input image canvas
`java.net.URL`	`theURL` The address of the input image
`long`	`time_msec` The execution time

Fields inherited from class javax.swing.JApplet

accessibleContext,  
rootPane,  
rootPaneCheckingEnabled

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT,  
CENTER_ALIGNMENT,  
LEFT_ALIGNMENT,  
RIGHT_ALIGNMENT,  
TOP_ALIGNMENT

Constructor Summary
`VisionApplet()`

Method Summary
`void`	`add_extra()` add_extra is used to add extra components to the window of the operator.
`void`	`apply_send_image()` apply_send_image grabs the image from the URL and turns it into an array of pixels which the operators can manipulate
`java.lang.String`	`getAppletInfo()` Used by the browser to find out what the applet is for
`void`	`gui_add_image()` gui_add_image is used to add the default images to the interface
`void`	`init()` Called automatically when the applet is started.
`void`	`set_image()` Sets up the default image
`void`	`set_interface()` set_interface sets up the 'standard' interface that is the same regardless of which operator is being run
`void`	`set_src_image(int[] input_img, int w, int h, java.lang.String name)` set_src_image tells the applet of the image to be loaded and displayed on the screen.
`void`	`set_src_image2(int[] input_img, int w, int h, java.lang.String name)` set_src_image2 is used to add a newly loaded image to the interface It is called by set_src_image once the operator thread has been recreated.

Methods inherited from class javax.swing.JApplet

addImpl, 
createRootPane, 
getAccessibleContext, 
getContentPane, 
getGlassPane, 
getJMenuBar, 
getLayeredPane, 
getRootPane, 
isRootPaneCheckingEnabled, 
paramString, 
processKeyEvent, 
setContentPane, 
setGlassPane, 
setJMenuBar, 
setLayeredPane, 
setLayout, 
setRootPane, 
setRootPaneCheckingEnabled, 
update

Methods inherited from class java.applet.Applet

destroy, 
getAppletContext, 
getAudioClip, 
getAudioClip, 
getCodeBase, 
getDocumentBase, 
getImage, 
getImage, 
getLocale, 
getParameter, 
getParameterInfo, 
isActive, 
newAudioClip, 
play, 
play, 
resize, 
resize, 
setStub, 
showStatus, 
start, 
stop

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, 
add, 
add, 
add, 
add, 
addContainerListener, 
countComponents, 
deliverEvent, 
doLayout, 
findComponentAt, 
findComponentAt, 
getAlignmentX, 
getAlignmentY, 
getComponent, 
getComponentAt, 
getComponentAt, 
getComponentCount, 
getComponents, 
getInsets, 
getLayout, 
getMaximumSize, 
getMinimumSize, 
getPreferredSize, 
insets, 
invalidate, 
isAncestorOf, 
layout, 
list, 
list, 
locate, 
minimumSize, 
paint, 
paintComponents, 
preferredSize, 
print, 
printComponents, 
processContainerEvent, 
processEvent, 
remove, 
remove, 
removeAll, 
removeContainerListener, 
removeNotify, 
setFont, 
validate, 
validateTree

Methods inherited from class java.awt.Component

action, 
add, 
addComponentListener, 
addFocusListener, 
addInputMethodListener, 
addKeyListener, 
addMouseListener, 
addMouseMotionListener, 
addPropertyChangeListener, 
addPropertyChangeListener, 
bounds, 
checkImage, 
checkImage, 
coalesceEvents, 
contains, 
contains, 
createImage, 
createImage, 
disable, 
disableEvents, 
dispatchEvent, 
enable, 
enable, 
enableEvents, 
enableInputMethods, 
firePropertyChange, 
getBackground, 
getBounds, 
getBounds, 
getColorModel, 
getComponentOrientation, 
getCursor, 
getDropTarget, 
getFont, 
getFontMetrics, 
getForeground, 
getGraphics, 
getHeight, 
getInputContext, 
getInputMethodRequests, 
getLocation, 
getLocation, 
getLocationOnScreen, 
getName, 
getParent, 
getPeer, 
getSize, 
getSize, 
getToolkit, 
getTreeLock, 
getWidth, 
getX, 
getY, 
gotFocus, 
handleEvent, 
hasFocus, 
hide, 
imageUpdate, 
inside, 
isDisplayable, 
isDoubleBuffered, 
isEnabled, 
isFocusTraversable, 
isLightweight, 
isOpaque, 
isShowing, 
isValid, 
isVisible, 
keyDown, 
keyUp, 
list, 
list, 
list, 
location, 
lostFocus, 
mouseDown, 
mouseDrag, 
mouseEnter, 
mouseExit, 
mouseMove, 
mouseUp, 
move, 
nextFocus, 
paintAll, 
postEvent, 
prepareImage, 
prepareImage, 
printAll, 
processComponentEvent, 
processFocusEvent, 
processInputMethodEvent, 
processMouseEvent, 
processMouseMotionEvent, 
remove, 
removeComponentListener, 
removeFocusListener, 
removeInputMethodListener, 
removeKeyListener, 
removeMouseListener, 
removeMouseMotionListener, 
removePropertyChangeListener, 
removePropertyChangeListener, 
repaint, 
repaint, 
repaint, 
repaint, 
requestFocus, 
reshape, 
setBackground, 
setBounds, 
setBounds, 
setComponentOrientation, 
setCursor, 
setDropTarget, 
setEnabled, 
setForeground, 
setLocale, 
setLocation, 
setLocation, 
setName, 
setSize, 
setSize, 
setVisible, 
show, 
show, 
size, 
toString, 
transferFocus

Methods inherited from class java.lang.Object

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

Field Detail

container

public java.awt.Container container

The main container for the applet

src

public java.awt.Image src

The input image

dest

public java.awt.Image dest

The output image

src_canvas

public ImageCanvas src_canvas

The input image canvas

dest_canvas

public ImageCanvas dest_canvas

The output image canvas

src_1d

public int[] src_1d

The input image array

dest_1d

public int[] dest_1d

The output image array

i_w

public int i_w

The input image width

i_h

public int i_h

The input image height

d_w

public int d_w

The output image width

d_h

public int d_h

The output image height

actualx

public int actualx

Co-ordiante points for finding the intensity value at a selected point

actualy

public int actualy

Co-ordiante points for finding the intensity value at a selected point

time_msec

public long time_msec

The execution time

midlayout

public java.awt.GridBagLayout midlayout

The layout for the middle panel

brlayout

public java.awt.GridBagLayout brlayout

The layout for the bottom right panel

bllayout

public java.awt.GridBagLayout bllayout

The layout for the bottom left panel

midc

public java.awt.GridBagConstraints midc

The constraints for the middle panel

blc

public java.awt.GridBagConstraints blc

The constraints for the bottom left panel

brc

public java.awt.GridBagConstraints brc

The constraints for the bottom right panel

mid

public javax.swing.JPanel mid

The middle panel

br

public javax.swing.JPanel br

The bottom right panel

bl

public javax.swing.JPanel bl

The bottom left panel

load_image

public javax.swing.JButton load_image

The load button

input

public javax.swing.JTextField input

The textfield used to get the URL of the input image

output

public javax.swing.JLabel output

The label for the output image

insize

public javax.swing.JLabel insize

The label for the input image size

outsize

public javax.swing.JLabel outsize

The label for the output image size

blPosition

public javax.swing.JLabel blPosition

The position label for the bottom left panel

brPosition

public javax.swing.JLabel brPosition

The position label for the bottom right panel

blIntensity

public javax.swing.JLabel blIntensity

The intensity label for the bottom left panel

brIntensity

public javax.swing.JLabel brIntensity

The intensity label for the bottom right panel

blpl

public VisionApplet.PixelListener blpl

The pixel listener for the input image

brpl

public VisionApplet.PixelListener brpl

The pixel listener for the output image

theURL

public java.net.URL theURL

The address of the input image

image_url

public java.lang.String image_url

The URL of the initial image

Constructor Detail

VisionApplet

public VisionApplet()

Method Detail

init

public void init()

Called automatically when the applet is started. Initialises the interface components ready for drawing on screen.

Overrides:: init in class java.applet.Applet

set_image

public void set_image()

Sets up the default image

set_interface

public void set_interface()

set_interface sets up the 'standard' interface that is the same regardless of which operator is being run

add_extra

public void add_extra()

add_extra is used to add extra components to the window of the operator. This is done by adding extra components into the blank mid panel. This panel is then added to the generic panels to make up the interface. The default is for this panel to be blank.

gui_add_image

public void gui_add_image()

gui_add_image is used to add the default images to the interface

set_src_image2

public void set_src_image2(int[] input_img,
                           int w,
                           int h,
                           java.lang.String name)

set_src_image2 is used to add a newly loaded image to the interface It is called by set_src_image once the operator thread has been recreated.

Parameters:: input_img - The new input image array; w - The width of the image; h - The height of the image; name - The name of the image

set_src_image

public void set_src_image(int[] input_img,
                          int w,
                          int h,
                          java.lang.String name)

set_src_image tells the applet of the image to be loaded and displayed on the screen. It also is required to recreate the operator which was running at the time. The method should be implemented by the subclass as this default doesn't do this.

Parameters:: input_img - The new input image array; w - The width of the image; h - The height of the image; name - The name of the image

apply_send_image

public void apply_send_image()

apply_send_image grabs the image from the URL and turns it into an array of pixels which the operators can manipulate

getAppletInfo

public java.lang.String getAppletInfo()

Used by the browser to find out what the applet is for

Returns:: the function of the applet
Overrides:: getAppletInfo in class java.applet.Applet