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## com.bbn.openmap.layer
Class ScaleDisplayLayer

    java.lang.Object
      java.awt.Component
          java.awt.Container
              javax.swing.JComponent
                  com.bbn.openmap.Layer
                      com.bbn.openmap.layer.OMGraphicHandlerLayer
                          com.bbn.openmap.layer.ScaleDisplayLayer

All Implemented Interfaces:
  java.awt.event.ActionListener, java.beans.beancontext.BeanContextChild, java.beans.beancontext.BeanContextMembershipListener, java.util.EventListener, GestureResponsePolicy, java.awt.image.ImageObserver, java.awt.MenuContainer, ProjectionListener, ProjectionPainter, PropertyConsumer, java.io.Serializable

public class ScaleDisplayLayer
extends OMGraphicHandlerLayer

Layer objects are components which can be added to the MapBean to make a map.

Layers implement the ProjectionListener interface to listen for ProjectionEvents. When the projection changes, they may need to refetch, regenerate their graphics, and then repaint themselves into the new view.

### Layer used by the overview handler
scaleLayer.class=com.rolands.jtlsweb.map.layer.ScaleDisplayLayer
scaleLayer.prettyName=Scale
scaleLayer.lineColor=ff777777
scaleLayer.textColor=ff000000
scaleLayer.unitOfMeasure=nm
scaleLayer.locationXoffset=-10
scaleLayer.locationYoffset=-20
scaleLayer.width=150
scaleLayer.height=10
unitOfMeasure - any com.bbn.openmap.proj.Length instance returned by Length.get(string).
locationXoffset - offset in pixels from left/right, positive from left edge, negative from right edge
locationYoffset - offset in pixels from top/bottom, positive from top edge, negative from bottom edge
width - width of scale indidator bar in pixels
height - height of scale indidator bar in pixels

See Also:
  Serialized Form

Nested Class Summary

Nested classes inherited from class javax.swing.JComponent
`javax.swing.JComponent.AccessibleJComponent`

Nested classes inherited from class java.awt.Container
`java.awt.Container.AccessibleAWTContainer`

Nested classes inherited from class java.awt.Component
`java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy`

Field Summary
`protected int` | `defaultHeight`
`protected java.lang.String` | `defaultLineColorString`
`protected int` | `defaultLocationXoffset`
`protected int` | `defaultLocationYoffset`
`protected java.lang.String` | `defaultTextColorString`
`protected java.lang.String` | `defaultUnitOfMeasureString`
`protected int` | `defaultWidth`
`protected int` | `height`
`static java.lang.String` | `HeightProperty`
`protected java.awt.Color` | `lineColor`
`static java.lang.String` | `LineColorProperty`
`protected int` | `locationXoffset`
`static java.lang.String` | `LocationXOffsetProperty`
`protected int` | `locationYoffset`
`static java.lang.String` | `LocationYOffsetProperty`
`protected java.awt.Color` | `textColor`
`static java.lang.String` | `TextColorProperty`
`protected java.lang.String` | `unitOfMeasure`
`static java.lang.String` | `UnitOfMeasureProperty`
`protected Length` | `uom`
`protected java.lang.String` | `uomAbbr`
`protected int` | `width`
`static java.lang.String` | `WidthProperty`

Fields inherited from class com.bbn.openmap.layer.OMGraphicHandlerLayer
`consumeEvents, ConsumeEventsProperty, filter, interruptable, InterruptableProperty, layerWorker, LAYERWORKER_LOCK, mouseEventInterpreter, mouseModeIDs, MouseModesProperty, projectionChangePolicy, ProjectionChangePolicyProperty, renderPolicy, RenderPolicyProperty, selectedList, TransparencyProperty`

Fields inherited from class com.bbn.openmap.Layer
`addAsBackground, AddAsBackgroundProperty, addToBeanContext, AddToBeanContextProperty, attributes, autoPalette, AutoPaletteProperty, beanContextChildSupport, DisplayPaletteCmd, DisplayPropertiesCmd, doHack, HidePaletteCmd, i18n, IDListeners, localHackList, lsListeners, maxScale, MaxScaleProperty, minScale, MinScaleProperty, paletteListener, PrettyNameProperty, propertyPrefix, RedrawCmd, removable, RemovableProperty, SWING_PACKAGE, windowSupport`

Fields inherited from class javax.swing.JComponent
`accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW`

Fields inherited from class java.awt.Component
`BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT`

Fields inherited from interface com.bbn.openmap.PropertyConsumer
`EditorProperty, initPropertiesProperty, LabelEditorProperty, ScopedEditorProperty`

Fields inherited from interface java.awt.image.ImageObserver
`ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH`

Constructor Summary
`ScaleDisplayLayer()`

Method Summary
`java.awt.Component` | `getGUI()` Creates the interface palette.
`java.lang.String` | `getUnitOfMeasure()` Getter for property unitOfMeasure.
`OMGraphicList` | `prepare()` This is the main method you should be concerned with when overriding this class.
`void` | `setProperties(java.lang.String prefix, java.util.Properties properties)` Sets the properties for the `Layer`.
`void` | `setUnitOfMeasure(java.lang.String unitOfMeasure)` Setter for property unitOfMeasure.

Methods inherited from class com.bbn.openmap.layer.OMGraphicHandlerLayer
`canSetList, copy, createLayerWorker, cut, deselect, doAction, doPrepare, filter, filter, filter, getConsumeEvents, getFilter, getInfoText, getItemsForMapMenu, getItemsForOMGraphicMenu, getLayerWorker, getList, getMapMouseListener, getMouseEventInterpreter, getMouseModeIDsForEvents, getProjectionChangePolicy, getProperties, getPropertyInfo, getRenderPolicy, getSelected, getToolTipTextFor, getTransparency, getTransparencyAdjustmentPanel, highlight, interrupt, isCancelled, isHighlightable, isInterruptable, isSelectable, isWorking, leftClick, mouseOver, paint, paste, projectionChanged, receivesMapEvents, renderDataForProjection, resetFiltering, select, setCancelled, setConsumeEvents, setFilter, setInterruptable, setLayerWorker, setList, setMouseEventInterpreter, setMouseModeIDsForEvents, setProjectionChangePolicy, setRenderPolicy, setTransparency, supportsSQL, unhighlight, workerComplete`

Methods inherited from class com.bbn.openmap.Layer
`actionPerformed, addComponentListener, added, addInfoDisplayListener, addLayerStatusListener, addMouseListener, addVetoableChangeListener, childrenAdded, childrenRemoved, clearListeners, connectToBeanContext, createWindowSupport, finalize, findAndInit, findAndInit, findAndUndo, fireHideToolTip, firePaletteEvent, fireRequestBrowserContent, fireRequestBrowserContent, fireRequestCursor, fireRequestInfoLine, fireRequestInfoLine, fireRequestInfoLine, fireRequestMessage, fireRequestMessage, fireRequestToolTip, fireRequestToolTip, fireRequestURL, fireRequestURL, fireStatusUpdate, fireStatusUpdate, fireVetoableChange, getAddAsBackground, getAddToBeanContext, getAttribute, getBeanContext, getIcon, getMaxScale, getMinScale, getPackage, getPalette, getProjection, getPropertyPrefix, getWindowSupport, hasGUI, hidePalette, isAutoPalette, isProjectionOK, isRemovable, notifyHideHack, putAttribute, removeComponentListener, removeConfirmed, removed, removeInfoDisplayListener, removeLayerStatusListener, removeVetoableChangeListener, repaint, resetPalette, setAddAsBackground, setAddToBeanContext, setAutoPalette, setBeanContext, setIcon, setMaxScale, setMinScale, setName, setPaletteVisible, setProjection, setProjection, setProperties, setPropertyPrefix, setRemovable, setVisible, setWindowSupport, showPalette`

Methods inherited from class javax.swing.JComponent
`addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getGraphics, getHeight, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFont, setForeground, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, unregisterKeyboardAction, update, updateUI`

Methods inherited from class java.awt.Container
`add, add, add, add, add, addContainerListener, addImpl, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree`

Methods inherited from class java.awt.Component
`action, add, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseEvent, processMouseWheelEvent, remove, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle`

Methods inherited from class java.lang.Object
`clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Methods inherited from interface java.beans.beancontext.BeanContextChild
`addPropertyChangeListener, removePropertyChangeListener`

Field Detail

### lineColor

    protected java.awt.Color lineColor

### textColor

    protected java.awt.Color textColor

### defaultLineColorString

    protected java.lang.String defaultLineColorString

### defaultTextColorString

    protected java.lang.String defaultTextColorString

### defaultUnitOfMeasureString

    protected java.lang.String defaultUnitOfMeasureString

### defaultLocationXoffset

    protected int defaultLocationXoffset

### defaultLocationYoffset

    protected int defaultLocationYoffset

### defaultWidth

    protected int defaultWidth

### defaultHeight

    protected int defaultHeight

### LineColorProperty

    public static final java.lang.String LineColorProperty

See Also:
  Constant Field Values

### TextColorProperty

    public static final java.lang.String TextColorProperty

See Also:
  Constant Field Values

### UnitOfMeasureProperty

    public static final java.lang.String UnitOfMeasureProperty

See Also:
  Constant Field Values

### LocationXOffsetProperty

    public static final java.lang.String LocationXOffsetProperty

See Also:
  Constant Field Values

### LocationYOffsetProperty

    public static final java.lang.String LocationYOffsetProperty

See Also:
  Constant Field Values

### WidthProperty

    public static final java.lang.String WidthProperty

See Also:
  Constant Field Values

### HeightProperty

    public static final java.lang.String HeightProperty

See Also:
  Constant Field Values

### unitOfMeasure

    protected java.lang.String unitOfMeasure

### uom

    protected Length uom

### uomAbbr

    protected java.lang.String uomAbbr

### locationXoffset

    protected int locationXoffset

### locationYoffset

    protected int locationYoffset

### width

    protected int width

### height

    protected int height

Constructor Detail

### ScaleDisplayLayer

    public ScaleDisplayLayer()

Method Detail

### setProperties

    public void setProperties(java.lang.String prefix,
                              java.util.Properties properties)

  Sets the properties for the `Layer`. This allows `Layer` s to get a richer set of parameters than the `setArgs` method.

  Specified by:
    `setProperties` in interface `PropertyConsumer`
  Overrides:
    `setProperties` in class `OMGraphicHandlerLayer`
  Parameters:
    `prefix` - the token to prefix the property names
    `properties` - the `Properties` object

### prepare

    public OMGraphicList prepare()

  Description copied from class: `OMGraphicHandlerLayer`
  This is the main method you should be concerned with when overriding this class. You have to make sure that this method returns an OMGraphicList that is ready to be rendered. That means they need to be generated with the current projection, which can be retrieved by calling getProjection().

  This method will be called in a separate thread if doPrepare() is called on the layer. This will automatically cause repaint() to be called, which lets java know to call paint() on this class.

  Note that the default action of this method is to get the OMGraphicList as it is currently set in the layer, reprojects the list with the current projection (calls generate() on them), and then returns the current list.

  If your layer needs to change what is on the list based on what the current projection is, you can either clear() the list yourself and add new OMGraphics to it (remember to call generate(Projection) on them), and return the list. You also have the option of setting a ListResetPCPolicy, which will automatically set the list to null when the projection changes before calling this method. The OMGraphicHandlerList will ignore a null OMGraphicList.

  NOTE: If you call prepare directly, you may need to call repaint(), too. With all invocations of this method that are cause by a projection change, repaint() will be called for you. The method is synchronized in case renderDataForProjection() gets called while in the middle of this method. For a different projection, that would be bad.

  Overrides:
    `prepare` in class `OMGraphicHandlerLayer`

### getUnitOfMeasure

    public java.lang.String getUnitOfMeasure()

  Getter for property unitOfMeasure.

  Returns:
    Value of property unitOfMeasure.

### setUnitOfMeasure

    public void setUnitOfMeasure(java.lang.String unitOfMeasure)

  Setter for property unitOfMeasure.

  Parameters:
    `unitOfMeasure` - New value of property unitOfMeasure.
  Throws:
    `java.beans.PropertyVetoException`

### getGUI

    public java.awt.Component getGUI()

  Creates the interface palette.

  Overrides:
    `getGUI` in class `Layer`
  Returns:
    java.awt.Component or null

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Copyright (C) BBNT Solutions LLC; See http://openmap.bbn.com/ for details