adm
Class CCanvas

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Canvas
              |
              +--adm.CCanvas

Direct Known Subclasses:

CAnimatedCanvas, CRect, CToggleButton

public abstract class CCanvas

extends java.awt.Canvas

implements CInterface, DeviceListener, CConstants

CCanvas is a abstract class. It is responsible for posting the minotorOn and receiving data. It is the base class of the control system display widgets. It uses awt.component paint and update methods.

Users can extend this class to develop simple custom widgets. The derived classes must implement the deviceChanged method.

Since:

adm0.1

See Also:

Serialized Form

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface adm.CConstants

ALIGN_CENTER, ALIGN_LEFT, ALIGN_RIGHT, AXIS_BOTTOM, AXIS_LEFT, AXIS_RIGHT, AXIS_STYLE_LINEAR, AXIS_STYLE_LOG10, AXIS_TOP, CLASS_QUERY, CLRMOD_ALARM, CLRMOD_STATIC, COLUMN, DEVICE_QUERY, DIR_DOWN, DIR_LEFT, DIR_RIGHT, DIR_UP, FILL_FROM_CENTER, FILL_FROM_EDGE, FRMT_AUTO, FRMT_FLOAT, FRMT_HEX, FRMT_INTEGER, FRMT_OCTAL, FRMT_SCIENTIFIC, HORIZONTAL, LABEL_ALL, LABEL_AXIS, LABEL_NONE, LABEL_VALUE, PROPERTY_QUERY, RANGE_AUTO, RANGE_FROM_PROPERTY, RANGE_STATIC, ROW, STYLE_FILLUNDER, STYLE_LINE, STYLE_POINT, VERTICAL

Constructor Summary

CCanvas(int width, int height)
Constructor Defines the canvas size and uses default foreground and background colors.

CCanvas(int width, int height, java.awt.Color fg, java.awt.Color bg)
Constructor Defines the canvas size and sets foreground and background colors.

CCanvas(java.lang.String dName, java.lang.String pName)
Constructor with device name and property name

Method Summary

java.lang.String	getDeviceName() Return the device name to which this component is connected.
java.lang.String	getPropertyName() Return the device property name to which this component is connected.
void	setDeviceAndPropertyName(java.lang.String newDeviceName, java.lang.String newPropertyName) Set device name and device property name
void	setDeviceName(java.lang.String newName) Set the Device name
void	setPropertyName(java.lang.String newName) Set device property name

Methods inherited from class java.awt.Canvas

addNotify, paint

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, contains, contains, createImage, createImage, deliverEvent, disable, dispatchEvent, doLayout, enable, enable, enableInputMethods, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getName, getParent, getPeer, getPreferredSize, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isDisplayable, isDoubleBuffered, isEnabled, isFocusTraversable, 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, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFont, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, update, validate

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CCanvas

public CCanvas(java.lang.String dName,
               java.lang.String pName)

Constructor with device name and property name

Parameters:

dName - device name

pName - property name

CCanvas

public CCanvas(int width,
               int height)

Constructor Defines the canvas size and uses default foreground and background colors.

Parameters:

width - component width

height - component height

CCanvas

public CCanvas(int width,
               int height,
               java.awt.Color fg,
               java.awt.Color bg)

Constructor Defines the canvas size and sets foreground and background colors.

Parameters:

width - component width

height - component height

fg - foreground color

bg - background color

Method Detail

setDeviceName

public void setDeviceName(java.lang.String newName)

Set the Device name

Specified by:

setDeviceName in interface CInterface

Parameters:

newName - the name of device you want to connect

getDeviceName

public java.lang.String getDeviceName()

Return the device name to which this component is connected. If device name is not set, return empty string "".

Specified by:

getDeviceName in interface CInterface

setPropertyName

public void setPropertyName(java.lang.String newName)

Set device property name

Specified by:

setPropertyName in interface CInterface

Parameters:

newName - the name of device property you want to connect

getPropertyName

public java.lang.String getPropertyName()

Return the device property name to which this component is connected. If property name is not set, return empty string "".

Specified by:

getPropertyName in interface CInterface

setDeviceAndPropertyName

public void setDeviceAndPropertyName(java.lang.String newDeviceName,
                                     java.lang.String newPropertyName)

Set device name and device property name

Parameters:

newDeviceName - the device name you want to connect

newPropertyName - the device property name you want to connect