java.lang.Object
- java.awt.Component
- - java.awt.Container
  - - javax.swing.JComponent
    - - org.openstreetmap.josm.gui.NavigatableComponent

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, Helpful

Direct Known Subclasses:

MapView
```
public class NavigatableComponent
extends javax.swing.JComponent
implements Helpful
```
A component that can be navigated by a MapMover. Used as map view and for the zoomer in the download dialog.

Since:

41

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`private class`	`NavigatableComponent.PrimitiveHoverMouseListener`	Listener for mouse movement events.
`private class`	`NavigatableComponent.SmoothScrollThread`	Thread class for smooth scrolling.
`static interface`	`NavigatableComponent.ZoomChangeListener`	Interface to notify listeners of the change of the zoom area.
`private static class`	`NavigatableComponent.ZoomData`

Nested classes/interfaces inherited from class javax.swing.JComponent
javax.swing.JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container
java.awt.Container.AccessibleAWTContainer

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	Description
`private static double`	`ALIGNMENT_EPSILON`
`private java.awt.event.ComponentAdapter`	`componentListenerNavigatableComponent`
`protected CursorManager`	`cursorManager`
`private java.awt.event.HierarchyListener`	`hierarchyListenerNavigatableComponent`
`protected ViewportData`	`initialViewport`
`java.util.function.Predicate<OsmPrimitive>`	`isSelectablePredicate`	To determine if a primitive is currently selectable.
`private NativeScaleLayer`	`nativeScaleLayer`	The layer which scale is set to.
`private IPrimitive`	`previousHoveredPrimitive`
`private java.util.concurrent.CopyOnWriteArrayList<PrimitiveHoverListener>`	`primitiveHoverListeners`
`private NavigatableComponent.PrimitiveHoverMouseListener`	`primitiveHoverMouseListenerHelper`
`private ProjectionChangeListener`	`projectionChangeListener`	Main uses weak link to store this, so we need to keep a reference.
`static IntegerProperty`	`PROP_SNAP_DISTANCE`	Snap distance
`static BooleanProperty`	`PROP_ZOOM_INTERMEDIATE_STEPS`	Divide intervals between native resolution levels to smaller steps if they are much larger than zoom ratio
`static DoubleProperty`	`PROP_ZOOM_RATIO`	Zoom steps to get double scale
`static BooleanProperty`	`PROP_ZOOM_SCALE_FOLLOW_NATIVE_RES_AT_LOAD`	scale follows native resolution of layer status when layer is created
`private MapViewState`	`state`	The current state (scale, center, ...) of this map view.
`private static java.util.concurrent.CopyOnWriteArrayList<NavigatableComponent.ZoomChangeListener>`	`zoomChangeListeners`	the zoom listeners
`private java.util.Stack<NavigatableComponent.ZoomData>`	`zoomRedoBuffer`
`private long`	`zoomTimestamp`
`private java.util.Stack<NavigatableComponent.ZoomData>`	`zoomUndoBuffer`

Fields inherited from class javax.swing.JComponent
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
accessibleContext, 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 Description

NavigatableComponent()
Constructs a new NavigatableComponent.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addNotify()`
`void`	`addPrimitiveHoverListener(PrimitiveHoverListener listener)`	Adds a primitive hover listener
`private void`	`addPrimitiveHoverMouseListeners()`
`static void`	`addZoomChangeListener(NavigatableComponent.ZoomChangeListener listener)`	Adds a zoom change listener
`protected void`	`firePrimitiveHovered(PrimitiveHoverListener.PrimitiveHoverEvent e)`	Send a `PrimitiveHoverListener.PrimitiveHoverEvent` to registered `PrimitiveHoverListener`s
`protected static void`	`fireZoomChanged()`
`void`	`fixProjection()`	Changes the projection settings used for this map view.
`java.awt.geom.AffineTransform`	`getAffineTransform()`	Creates an affine transform that is used to convert the east/north coordinates to view coordinates.
`java.util.List<OsmPrimitive>`	`getAllNearest(java.awt.Point p, java.util.Collection<OsmPrimitive> ignore, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`java.util.List<OsmPrimitive>`	`getAllNearest(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`private BBox`	`getBBox(java.awt.Point p, int snapDistance)`
`EastNorth`	`getCenter()`	Returns the current center of the viewport.
`CursorManager`	`getCursorManager()`	Gets the cursor manager that is used for this NavigatableComponent.
`double`	`getDist100Pixel()`	Get the distance in meter that correspond to 100 px on screen.
`double`	`getDist100Pixel(boolean alwaysPositive)`	Get the distance in meter that correspond to 100 px on screen.
`java.lang.String`	`getDist100PixelText()`	Returns the text describing the distance in meter that correspond to 100 px on screen.
`static java.lang.String`	`getDistText(double dist)`	Returns the text describing the given distance in the current system of measurement.
`static java.lang.String`	`getDistText(double dist, java.text.NumberFormat format, double threshold)`	Returns the text describing the given distance in the current system of measurement.
`EastNorth`	`getEastNorth(int x, int y)`	Returns geographic coordinates from a specific pixel coordination on the screen.
`LatLon`	`getLatLon(double x, double y)`	Returns unprojected geographic coordinates for a specific pixel position on the screen.
`LatLon`	`getLatLon(int x, int y)`	Returns unprojected geographic coordinates for a specific pixel position on the screen.
`Bounds`	`getLatLonBounds(java.awt.Rectangle r)`	Returns minimum bounds that will cover a given rectangle.
`ProjectionBounds`	`getMaxProjectionBounds()`
`double`	`getMaxScale()`	Get a max scale for projection that describes world in 1/512 of the projection unit
`NativeScaleLayer`	`getNativeScaleLayer()`	Replies the layer which scale is set to.
`Node`	`getNearestNode(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	Convenience method to `getNearestNode(Point, Predicate, boolean)`.
`Node`	`getNearestNode(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate, boolean useSelected)`	The result depends on the current map selection state IF use_selected is true.
`Node`	`getNearestNode(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate, boolean useSelected, java.util.Collection<OsmPrimitive> preferredRefs)`	The result depends on the current map selection state IF use_selected is true
`OsmPrimitive`	`getNearestNodeOrWay(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate, boolean useSelected)`	The result depends on the current map selection state IF use_selected is true.
`java.util.List<Node>`	`getNearestNodes(java.awt.Point p, java.util.Collection<Node> ignore, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`java.util.List<Node>`	`getNearestNodes(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`private java.util.Map<java.lang.Double,java.util.List<Node>>`	`getNearestNodesImpl(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`java.util.List<OsmPrimitive>`	`getNearestNodesOrWays(java.awt.Point p, java.util.Collection<OsmPrimitive> ignore, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`java.util.List<OsmPrimitive>`	`getNearestNodesOrWays(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`Way`	`getNearestWay(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	The result depends on the current map selection state.
`java.util.List<Way>`	`getNearestWays(java.awt.Point p, java.util.Collection<Way> ignore, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`java.util.List<Way>`	`getNearestWays(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`WaySegment`	`getNearestWaySegment(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	Convenience method to `getNearestWaySegment(Point, Predicate, boolean)`.
`WaySegment`	`getNearestWaySegment(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate, boolean useSelected)`	The result depends on the current map selection state IF use_selected is true.
`WaySegment`	`getNearestWaySegment(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate, boolean useSelected, java.util.Collection<OsmPrimitive> preferredRefs)`	The result depends on the current map selection state IF use_selected is true.
`java.util.List<WaySegment>`	`getNearestWaySegments(java.awt.Point p, java.util.Collection<WaySegment> ignore, java.util.function.Predicate<OsmPrimitive> predicate)`	The result order depends on the current map selection state.
`java.util.List<WaySegment>`	`getNearestWaySegments(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	The result order depends on the current map selection state.
`private java.util.Map<java.lang.Double,java.util.List<WaySegment>>`	`getNearestWaySegmentsImpl(java.awt.Point p, java.util.function.Predicate<OsmPrimitive> predicate)`	The result does not depend on the current map selection state, neither does the result order.
`java.awt.Point`	`getPoint(EastNorth p)`	looses precision, may overflow (depends on p and current scale)
`java.awt.Point`	`getPoint(ILatLon latlon)`	looses precision, may overflow (depends on p and current scale)
`java.awt.Point`	`getPoint(LatLon latlon)`	looses precision, may overflow (depends on p and current scale)
`java.awt.Point`	`getPoint(Node n)`	looses precision, may overflow (depends on p and current scale)
`java.awt.geom.Point2D`	`getPoint2D(EastNorth p)`	Return the point on the screen where this Coordinate would be.
`java.awt.geom.Point2D`	`getPoint2D(ILatLon latlon)`	Return the point on the screen where this Coordinate would be.
`java.awt.geom.Point2D`	`getPoint2D(LatLon latlon)`	Return the point on the screen where this Coordinate would be.
`java.awt.geom.Point2D`	`getPoint2D(Node n)`	Return the point on the screen where this Node would be.
`Projection`	`getProjection()`	Returns the projection to be used in calculating stuff.
`ProjectionBounds`	`getProjectionBounds()`	Determines the projection bounds of view area.
`ProjectionBounds`	`getProjectionBounds(java.awt.Rectangle r)`	Determines the projection bounds of given rectangle.
`Bounds`	`getRealBounds()`
`double`	`getScale()`	Returns the current scale.
`MapViewState`	`getState()`	Gets the current view state.
`int`	`getViewID()`	Return an ID which is unique as long as viewport dimensions are the same
`boolean`	`hasZoomRedoEntries()`	Determines if zoom history contains "redo" entries.
`boolean`	`hasZoomUndoEntries()`	Determines if zoom history contains "undo" entries.
`java.lang.String`	`helpTopic()`	Returns the help topic on JOSM wiki for this feature.
`private boolean`	`isPrecedenceNode(Node osm, java.awt.Point p, boolean useSelected)`	This is used as a helper routine to `getNearestNodeOrWay(Point, Predicate, boolean)` It decides, whether to yield the node to be tested or look for further (way) candidates.
`protected boolean`	`isVisibleOnScreen()`
`static java.awt.geom.Point2D`	`project(double r, java.awt.geom.Point2D a, java.awt.geom.Point2D b)`	if r = 0 returns a, if r=1 returns b, if r = 0.5 returns center between a and b, etc.
`private void`	`pushZoomUndo(EastNorth center, double scale)`
`void`	`removeNotify()`
`void`	`removePrimitiveHoverListener(PrimitiveHoverListener listener)`	Removes a primitive hover listener
`private void`	`removePrimitiveHoverMouseListeners()`
`static void`	`removeZoomChangeListener(NavigatableComponent.ZoomChangeListener listener)`	Removes a zoom change listener
`void`	`resetCursor(java.lang.Object reference)`	Remove the new cursor and reset to previous
`double`	`scaleFloor(double scale)`	Get a scale snapped to native resolutions.
`double`	`scaleRound(double scale)`	Get a scale snapped to native resolutions, use round method.
`double`	`scaleSnap(double scale, boolean floor)`	Get a scale snapped to native resolutions.
`double`	`scaleZoomIn()`	Get a new scale that is zoomed in from previous scale and snapped to selected native scale layer.
`double`	`scaleZoomManyTimes(int times)`	Get a new scale that is zoomed in/out a number of times from previous scale and snapped to selected native scale layer.
`double`	`scaleZoomOut()`	Get a new scale that is zoomed out from previous scale and snapped to selected native scale layer.
`void`	`setNativeScaleLayer(NativeScaleLayer nativeScaleLayer)`	Choose a layer that scale will be snap to its native scales.
`void`	`setNewCursor(int cursor, java.lang.Object reference)`	Set new cursor.
`void`	`setNewCursor(java.awt.Cursor cursor, java.lang.Object reference)`	Set new cursor.
`void`	`smoothScrollTo(EastNorth newCenter)`	Create a thread that moves the viewport to the given center in an animated fashion.
`private void`	`updateHoveredPrimitive(IPrimitive hovered, java.awt.event.MouseEvent e)`
`protected void`	`updateLocationState()`
`void`	`zoomIn()`	Zoom in current view.
`void`	`zoomManyTimes(double x, double y, int times)`
`void`	`zoomNext()`	Zoom to next location.
`private void`	`zoomNoUndoTo(EastNorth newCenter, double newScale, boolean initial)`	Zoom to the given coordinate without adding to the zoom undo buffer.
`void`	`zoomOut()`	Zoom out current view.
`void`	`zoomPrevious()`	Zoom to previous location.
`void`	`zoomTo(Bounds box)`	Zoom to given bounds.
`void`	`zoomTo(EastNorth newCenter)`	Zoom to given east/north.
`void`	`zoomTo(EastNorth newCenter, double newScale)`	Zoom to the given coordinate and scale.
`void`	`zoomTo(EastNorth center, double scale, boolean initial)`	Zoom to the given coordinate and scale.
`void`	`zoomTo(ILatLon newCenter)`	Zoom to given lat/lon.
`void`	`zoomTo(LatLon newCenter)`	Zoom to given lat/lon.
`void`	`zoomTo(BoundingXYVisitor v)`	Set the new dimension to the view.
`void`	`zoomTo(ProjectionBounds box)`	Zoom to given projection bounds.
`void`	`zoomTo(ViewportData viewport)`	Zoom to given viewport data.
`void`	`zoomToFactor(double factor)`
`void`	`zoomToFactor(double x, double y, double factor)`
`void`	`zoomToFactor(EastNorth newCenter, double factor)`

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

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

Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAccessibleContext, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, 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, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

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

- Field Detail
  - ALIGNMENT_EPSILON
```
private static final double ALIGNMENT_EPSILON
```
    See Also:
    
    Constant Field Values
  - isSelectablePredicate
```
public transient java.util.function.Predicate<OsmPrimitive> isSelectablePredicate
```
    To determine if a primitive is currently selectable.
  - PROP_SNAP_DISTANCE
```
public static final IntegerProperty PROP_SNAP_DISTANCE
```
    Snap distance
  - PROP_ZOOM_RATIO
```
public static final DoubleProperty PROP_ZOOM_RATIO
```
    Zoom steps to get double scale
  - PROP_ZOOM_INTERMEDIATE_STEPS
```
public static final BooleanProperty PROP_ZOOM_INTERMEDIATE_STEPS
```
    Divide intervals between native resolution levels to smaller steps if they are much larger than zoom ratio
  - PROP_ZOOM_SCALE_FOLLOW_NATIVE_RES_AT_LOAD
```
public static final BooleanProperty PROP_ZOOM_SCALE_FOLLOW_NATIVE_RES_AT_LOAD
```
    scale follows native resolution of layer status when layer is created
  - nativeScaleLayer
```
private transient NativeScaleLayer nativeScaleLayer
```
    The layer which scale is set to.
  - zoomChangeListeners
```
private static final java.util.concurrent.CopyOnWriteArrayList<NavigatableComponent.ZoomChangeListener> zoomChangeListeners
```
    the zoom listeners
  - primitiveHoverListeners
```
private final java.util.concurrent.CopyOnWriteArrayList<PrimitiveHoverListener> primitiveHoverListeners
```
  - previousHoveredPrimitive
```
private IPrimitive previousHoveredPrimitive
```
  - primitiveHoverMouseListenerHelper
```
private final NavigatableComponent.PrimitiveHoverMouseListener primitiveHoverMouseListenerHelper
```
  - hierarchyListenerNavigatableComponent
```
private final transient java.awt.event.HierarchyListener hierarchyListenerNavigatableComponent
```
  - componentListenerNavigatableComponent
```
private final transient java.awt.event.ComponentAdapter componentListenerNavigatableComponent
```
  - initialViewport
```
protected transient ViewportData initialViewport
```
  - cursorManager
```
protected final transient CursorManager cursorManager
```
  - state
```
private transient MapViewState state
```
    The current state (scale, center, ...) of this map view.
  - projectionChangeListener
```
private final ProjectionChangeListener projectionChangeListener
```
    Main uses weak link to store this, so we need to keep a reference.
  - zoomUndoBuffer
```
private final transient java.util.Stack<NavigatableComponent.ZoomData> zoomUndoBuffer
```
  - zoomRedoBuffer
```
private final transient java.util.Stack<NavigatableComponent.ZoomData> zoomRedoBuffer
```
  - zoomTimestamp
```
private long zoomTimestamp
```
- Constructor Detail
  - NavigatableComponent
```
public NavigatableComponent()
```
    Constructs a new NavigatableComponent.
- Method Detail
  - removeZoomChangeListener
```
public static void removeZoomChangeListener(NavigatableComponent.ZoomChangeListener listener)
```
    Removes a zoom change listener
    
    Parameters:
    
    listener - the listener. Ignored if null or already absent
  - addZoomChangeListener
```
public static void addZoomChangeListener(NavigatableComponent.ZoomChangeListener listener)
```
    Adds a zoom change listener
    
    Parameters:
    
    listener - the listener. Ignored if null or already registered.
  - fireZoomChanged
```
protected static void fireZoomChanged()
```
  - removePrimitiveHoverListener
```
public void removePrimitiveHoverListener(PrimitiveHoverListener listener)
```
    Removes a primitive hover listener
    
    Parameters:
    
    listener - the listener. Ignored if null or already absent.
    
    Since:
    
    18574
  - addPrimitiveHoverListener
```
public void addPrimitiveHoverListener(PrimitiveHoverListener listener)
```
    Adds a primitive hover listener
    
    Parameters:
    
    listener - the listener. Ignored if null or already registered.
    
    Since:
    
    18574
  - firePrimitiveHovered
```
protected void firePrimitiveHovered(PrimitiveHoverListener.PrimitiveHoverEvent e)
```
    Send a PrimitiveHoverListener.PrimitiveHoverEvent to registered PrimitiveHoverListeners
    
    Parameters:
    
    e - primitive hover event information
    
    Since:
    
    18574
  - updateHoveredPrimitive
```
private void updateHoveredPrimitive(IPrimitive hovered,
                                    java.awt.event.MouseEvent e)
```
  - addNotify
```
public void addNotify()
```
    Overrides:
    
    addNotify in class javax.swing.JComponent
  - removeNotify
```
public void removeNotify()
```
    Overrides:
    
    removeNotify in class javax.swing.JComponent
  - addPrimitiveHoverMouseListeners
```
private void addPrimitiveHoverMouseListeners()
```
  - removePrimitiveHoverMouseListeners
```
private void removePrimitiveHoverMouseListeners()
```
  - setNativeScaleLayer
```
public void setNativeScaleLayer(NativeScaleLayer nativeScaleLayer)
```
    Choose a layer that scale will be snap to its native scales.
    
    Parameters:
    
    nativeScaleLayer - layer to which scale will be snapped
  - getNativeScaleLayer
```
public NativeScaleLayer getNativeScaleLayer()
```
    Replies the layer which scale is set to.
    
    Returns:
    
    the current scale layer (may be null)
  - scaleZoomIn
```
public double scaleZoomIn()
```
    Get a new scale that is zoomed in from previous scale and snapped to selected native scale layer.
    
    Returns:
    
    new scale
  - scaleZoomOut
```
public double scaleZoomOut()
```
    Get a new scale that is zoomed out from previous scale and snapped to selected native scale layer.
    
    Returns:
    
    new scale
  - scaleZoomManyTimes
```
public double scaleZoomManyTimes(int times)
```
    Get a new scale that is zoomed in/out a number of times from previous scale and snapped to selected native scale layer.
    
    Parameters:
    
    times - count of zoom operations, negative means zoom in
    
    Returns:
    
    new scale
  - scaleRound
```
public double scaleRound(double scale)
```
    Get a scale snapped to native resolutions, use round method. It gives nearest step from scale list. Use round method.
    
    Parameters:
    
    scale - to snap
    
    Returns:
    
    snapped scale
  - scaleFloor
```
public double scaleFloor(double scale)
```
    Get a scale snapped to native resolutions. It gives nearest lower step from scale list, usable to fit objects.
    
    Parameters:
    
    scale - to snap
    
    Returns:
    
    snapped scale
  - scaleSnap
```
public double scaleSnap(double scale,
                        boolean floor)
```
    Get a scale snapped to native resolutions. It gives nearest lower step from scale list, usable to fit objects.
    
    Parameters:
    
    scale - to snap
    
    floor - use floor instead of round, set true when fitting view to objects
    
    Returns:
    
    new scale
  - zoomIn
```
public void zoomIn()
```
    Zoom in current view. Use configured zoom step and scaling settings.
  - zoomOut
```
public void zoomOut()
```
    Zoom out current view. Use configured zoom step and scaling settings.
  - updateLocationState
```
protected void updateLocationState()
```
  - isVisibleOnScreen
```
protected boolean isVisibleOnScreen()
```
  - fixProjection
```
public void fixProjection()
```
    Changes the projection settings used for this map view.
    Made public temporarily, will be made private later.
  - getState
```
public MapViewState getState()
```
    Gets the current view state. This includes the scale, the current view area and the position.
    
    Returns:
    
    The current state.
  - getDistText
```
public static java.lang.String getDistText(double dist)
```
    Returns the text describing the given distance in the current system of measurement.
    
    Parameters:
    
    dist - The distance in metres.
    
    Returns:
    
    the text describing the given distance in the current system of measurement.
    
    Since:
    
    3406
  - getDistText
```
public static java.lang.String getDistText(double dist,
                                           java.text.NumberFormat format,
                                           double threshold)
```
    Returns the text describing the given distance in the current system of measurement.
    
    Parameters:
    
    dist - The distance in metres
    
    format - A NumberFormat to format the area value
    
    threshold - Values lower than this threshold are displayed as "< [threshold]"
    
    Returns:
    
    the text describing the given distance in the current system of measurement.
    
    Since:
    
    7135
  - getDist100PixelText
```
public java.lang.String getDist100PixelText()
```
    Returns the text describing the distance in meter that correspond to 100 px on screen.
    
    Returns:
    
    the text describing the distance in meter that correspond to 100 px on screen
  - getDist100Pixel
```
public double getDist100Pixel()
```
    Get the distance in meter that correspond to 100 px on screen.
    
    Returns:
    
    the distance in meter that correspond to 100 px on screen
  - getDist100Pixel
```
public double getDist100Pixel(boolean alwaysPositive)
```
    Get the distance in meter that correspond to 100 px on screen.
    
    Parameters:
    
    alwaysPositive - if true, makes sure the return value is always > 0. (Two points 100 px apart can appear to be identical if the user has zoomed out a lot and the projection code does something funny.)
    
    Returns:
    
    the distance in meter that correspond to 100 px on screen
  - getCenter
```
public EastNorth getCenter()
```
    Returns the current center of the viewport.
    (Use zoomTo(EastNorth) to the change the center.)
    
    Returns:
    
    the current center of the viewport
  - getScale
```
public double getScale()
```
    Returns the current scale.
    In east/north units per pixel.
    
    Returns:
    
    the current scale
  - getEastNorth
```
public EastNorth getEastNorth(int x,
                              int y)
```
    Returns geographic coordinates from a specific pixel coordination on the screen.
    
    Parameters:
    
    x - X-Pixelposition to get coordinate from
    
    y - Y-Pixelposition to get coordinate from
    
    Returns:
    
    Geographic coordinates from a specific pixel coordination on the screen.
  - getProjectionBounds
```
public ProjectionBounds getProjectionBounds()
```
    Determines the projection bounds of view area.
    
    Returns:
    
    the projection bounds of view area
  - getMaxProjectionBounds
```
public ProjectionBounds getMaxProjectionBounds()
```
  - getRealBounds
```
public Bounds getRealBounds()
```
  - getLatLon
```
public LatLon getLatLon(int x,
                        int y)
```
    Returns unprojected geographic coordinates for a specific pixel position on the screen.
    
    Parameters:
    
    x - X-Pixelposition to get coordinate from
    
    y - Y-Pixelposition to get coordinate from
    
    Returns:
    
    Geographic unprojected coordinates from a specific pixel position on the screen.
  - getLatLon
```
public LatLon getLatLon(double x,
                        double y)
```
    Returns unprojected geographic coordinates for a specific pixel position on the screen.
    
    Parameters:
    
    x - X-Pixelposition to get coordinate from
    
    y - Y-Pixelposition to get coordinate from
    
    Returns:
    
    Geographic unprojected coordinates from a specific pixel position on the screen.
  - getProjectionBounds
```
public ProjectionBounds getProjectionBounds(java.awt.Rectangle r)
```
    Determines the projection bounds of given rectangle.
    
    Parameters:
    
    r - rectangle
    
    Returns:
    
    the projection bounds of r
  - getLatLonBounds
```
public Bounds getLatLonBounds(java.awt.Rectangle r)
```
    Returns minimum bounds that will cover a given rectangle.
    
    Parameters:
    
    r - rectangle
    
    Returns:
    
    Minimum bounds that will cover rectangle
  - getAffineTransform
```
public java.awt.geom.AffineTransform getAffineTransform()
```
    Creates an affine transform that is used to convert the east/north coordinates to view coordinates.
    
    Returns:
    
    The affine transform.
  - getPoint2D
```
public java.awt.geom.Point2D getPoint2D(EastNorth p)
```
    Return the point on the screen where this Coordinate would be.
    
    Parameters:
    
    p - The point, where this geopoint would be drawn.
    
    Returns:
    
    The point on screen where "point" would be drawn, relative to the own top/left.
  - getPoint2D
```
public java.awt.geom.Point2D getPoint2D(ILatLon latlon)
```
    Return the point on the screen where this Coordinate would be.
    Alternative: getState(), then MapViewState.getPointFor(ILatLon)
    
    Parameters:
    
    latlon - The point, where this geopoint would be drawn.
    
    Returns:
    
    The point on screen where "point" would be drawn, relative to the own top/left.
  - getPoint2D
```
public java.awt.geom.Point2D getPoint2D(LatLon latlon)
```
    Return the point on the screen where this Coordinate would be.
    Alternative: getState(), then MapViewState.getPointFor(ILatLon)
    
    Parameters:
    
    latlon - The point, where this geopoint would be drawn.
    
    Returns:
    
    The point on screen where "point" would be drawn, relative to the own top/left.
  - getPoint2D
```
public java.awt.geom.Point2D getPoint2D(Node n)
```
    Return the point on the screen where this Node would be.
    Alternative: getState(), then MapViewState.getPointFor(ILatLon)
    
    Parameters:
    
    n - The node, where this geopoint would be drawn.
    
    Returns:
    
    The point on screen where "node" would be drawn, relative to the own top/left.
  - getPoint
```
public java.awt.Point getPoint(EastNorth p)
```
    looses precision, may overflow (depends on p and current scale)
    
    Parameters:
    
    p - east/north
    
    Returns:
    
    point
    
    See Also:
    
    getPoint2D(EastNorth)
  - getPoint
```
public java.awt.Point getPoint(ILatLon latlon)
```
    looses precision, may overflow (depends on p and current scale)
    
    Parameters:
    
    latlon - lat/lon
    
    Returns:
    
    point
    
    Since:
    
    12725
    
    See Also:
    
    getPoint2D(LatLon)
  - getPoint
```
public java.awt.Point getPoint(LatLon latlon)
```
    looses precision, may overflow (depends on p and current scale)
    
    Parameters:
    
    latlon - lat/lon
    
    Returns:
    
    point
    
    See Also:
    
    getPoint2D(LatLon)
  - getPoint
```
public java.awt.Point getPoint(Node n)
```
    looses precision, may overflow (depends on p and current scale)
    
    Parameters:
    
    n - node
    
    Returns:
    
    point
    
    See Also:
    
    getPoint2D(Node)
  - zoomTo
```
public void zoomTo(EastNorth newCenter,
                   double newScale)
```
    Zoom to the given coordinate and scale.
    
    Parameters:
    
    newCenter - The center x-value (easting) to zoom to.
    
    newScale - The scale to use.
  - zoomTo
```
public void zoomTo(EastNorth center,
                   double scale,
                   boolean initial)
```
    Zoom to the given coordinate and scale.
    
    Parameters:
    
    center - The center x-value (easting) to zoom to.
    
    scale - The scale to use.
    
    initial - true if this call initializes the viewport.
  - zoomNoUndoTo
```
private void zoomNoUndoTo(EastNorth newCenter,
                          double newScale,
                          boolean initial)
```
    Zoom to the given coordinate without adding to the zoom undo buffer.
    
    Parameters:
    
    newCenter - The center x-value (easting) to zoom to.
    
    newScale - The scale to use.
    
    initial - true if this call initializes the viewport.
  - zoomTo
```
public void zoomTo(EastNorth newCenter)
```
    Zoom to given east/north.
    
    Parameters:
    
    newCenter - new center coordinates
  - zoomTo
```
public void zoomTo(ILatLon newCenter)
```
    Zoom to given lat/lon.
    
    Parameters:
    
    newCenter - new center coordinates
    
    Since:
    
    12725
  - zoomTo
```
public void zoomTo(LatLon newCenter)
```
    Zoom to given lat/lon.
    
    Parameters:
    
    newCenter - new center coordinates
  - smoothScrollTo
```
public void smoothScrollTo(EastNorth newCenter)
```
    Create a thread that moves the viewport to the given center in an animated fashion.
    
    Parameters:
    
    newCenter - new east/north center
  - zoomManyTimes
```
public void zoomManyTimes(double x,
                          double y,
                          int times)
```
  - zoomToFactor
```
public void zoomToFactor(double x,
                         double y,
                         double factor)
```
  - zoomToFactor
```
public void zoomToFactor(EastNorth newCenter,
                         double factor)
```
  - zoomToFactor
```
public void zoomToFactor(double factor)
```
  - zoomTo
```
public void zoomTo(ProjectionBounds box)
```
    Zoom to given projection bounds.
    
    Parameters:
    
    box - new projection bounds
  - zoomTo
```
public void zoomTo(Bounds box)
```
    Zoom to given bounds.
    
    Parameters:
    
    box - new bounds
  - zoomTo
```
public void zoomTo(ViewportData viewport)
```
    Zoom to given viewport data.
    
    Parameters:
    
    viewport - new viewport data
  - zoomTo
```
public void zoomTo(BoundingXYVisitor v)
```
    Set the new dimension to the view.
    
    Parameters:
    
    v - box to zoom to
  - pushZoomUndo
```
private void pushZoomUndo(EastNorth center,
                          double scale)
```
  - zoomPrevious
```
public void zoomPrevious()
```
    Zoom to previous location.
  - zoomNext
```
public void zoomNext()
```
    Zoom to next location.
  - hasZoomUndoEntries
```
public boolean hasZoomUndoEntries()
```
    Determines if zoom history contains "undo" entries.
    
    Returns:
    
    true if zoom history contains "undo" entries
  - hasZoomRedoEntries
```
public boolean hasZoomRedoEntries()
```
    Determines if zoom history contains "redo" entries.
    
    Returns:
    
    true if zoom history contains "redo" entries
  - getBBox
```
private BBox getBBox(java.awt.Point p,
                     int snapDistance)
```
  - getNearestNodesImpl
```
private java.util.Map<java.lang.Double,java.util.List<Node>> getNearestNodesImpl(java.awt.Point p,
                                                                                       java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the distance to point p.
    
    Parameters:
    
    p - point
    
    predicate - predicate to match
    
    Returns:
    
    a sorted map with the keys representing the distance of their associated nodes to point p.
  - getNearestNodes
```
public final java.util.List<Node> getNearestNodes(java.awt.Point p,
                                                  java.util.Collection<Node> ignore,
                                                  java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the distance to point p.
    
    Parameters:
    
    p - the point for which to search the nearest segment.
    
    ignore - a collection of nodes which are not to be returned.
    
    predicate - the returned objects have to fulfill certain properties.
    
    Returns:
    
    All nodes nearest to point p that are in a belt from dist(nearest) to dist(nearest)+4px around p and that are not in ignore.
  - getNearestNodes
```
public final java.util.List<Node> getNearestNodes(java.awt.Point p,
                                                  java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the distance to point p.
    
    Parameters:
    
    p - the point for which to search the nearest segment.
    
    predicate - the returned objects have to fulfill certain properties.
    
    Returns:
    
    All nodes nearest to point p that are in a belt from dist(nearest) to dist(nearest)+4px around p.
    
    See Also:
    
    getNearestNodes(Point, Collection, Predicate)
  - getNearestNode
```
public final Node getNearestNode(java.awt.Point p,
                                 java.util.function.Predicate<OsmPrimitive> predicate,
                                 boolean useSelected)
```
    The *result* depends on the current map selection state IF use_selected is true.
    If more than one node within node.snap-distance pixels is found, the nearest node selected is returned IF use_selected is true.
    Else the nearest new/id=0 node within about the same distance as the true nearest node is returned.
    If no such node is found either, the true nearest node to p is returned.
    Finally, if a node is not found at all, null is returned.
    
    Parameters:
    
    p - the screen point
    
    predicate - this parameter imposes a condition on the returned object, e.g. give the nearest node that is tagged.
    
    useSelected - make search depend on selection
    
    Returns:
    
    A node within snap-distance to point p, that is chosen by the algorithm described.
  - getNearestNode
```
public final Node getNearestNode(java.awt.Point p,
                                 java.util.function.Predicate<OsmPrimitive> predicate,
                                 boolean useSelected,
                                 java.util.Collection<OsmPrimitive> preferredRefs)
```
    The *result* depends on the current map selection state IF use_selected is true
    If more than one node within node.snap-distance pixels is found, the nearest node selected is returned IF use_selected is true.
    If there are no selected nodes near that point, the node that is related to some of the preferredRefs
    Else the nearest new/id=0 node within about the same distance as the true nearest node is returned.
    If no such node is found either, the true nearest node to p is returned.
    Finally, if a node is not found at all, null is returned.
    
    Parameters:
    
    p - the screen point
    
    predicate - this parameter imposes a condition on the returned object, e.g. give the nearest node that is tagged.
    
    useSelected - make search depend on selection
    
    preferredRefs - primitives, whose nodes we prefer
    
    Returns:
    
    A node within snap-distance to point p, that is chosen by the algorithm described.
    
    Since:
    
    6065
  - getNearestNode
```
public final Node getNearestNode(java.awt.Point p,
                                 java.util.function.Predicate<OsmPrimitive> predicate)
```
    Convenience method to getNearestNode(Point, Predicate, boolean).
    
    Parameters:
    
    p - the screen point
    
    predicate - this parameter imposes a condition on the returned object, e.g. give the nearest node that is tagged.
    
    Returns:
    
    The nearest node to point p.
  - getNearestWaySegmentsImpl
```
private java.util.Map<java.lang.Double,java.util.List<WaySegment>> getNearestWaySegmentsImpl(java.awt.Point p,
                                                                                                   java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the distance to point p.
    
    Parameters:
    
    p - the screen point
    
    predicate - this parameter imposes a condition on the returned object, e.g. give the nearest node that is tagged.
    
    Returns:
    
    a sorted map with the keys representing the perpendicular distance of their associated way segments to point p.
  - getNearestWaySegments
```
public final java.util.List<WaySegment> getNearestWaySegments(java.awt.Point p,
                                                              java.util.Collection<WaySegment> ignore,
                                                              java.util.function.Predicate<OsmPrimitive> predicate)
```
    The result *order* depends on the current map selection state. Segments within 10px of p are searched and sorted by their distance to p, then, within groups of equally distant segments, prefer those that are selected.
    
    Parameters:
    
    p - the point for which to search the nearest segments.
    
    ignore - a collection of segments which are not to be returned.
    
    predicate - the returned objects have to fulfill certain properties.
    
    Returns:
    
    all segments within 10px of p that are not in ignore, sorted by their perpendicular distance.
  - getNearestWaySegments
```
public final java.util.List<WaySegment> getNearestWaySegments(java.awt.Point p,
                                                              java.util.function.Predicate<OsmPrimitive> predicate)
```
    The result *order* depends on the current map selection state.
    
    Parameters:
    
    p - the point for which to search the nearest segments.
    
    predicate - the returned objects have to fulfill certain properties.
    
    Returns:
    
    all segments within 10px of p, sorted by their perpendicular distance.
    
    See Also:
    
    getNearestWaySegments(Point, Collection, Predicate)
  - getNearestWaySegment
```
public final WaySegment getNearestWaySegment(java.awt.Point p,
                                             java.util.function.Predicate<OsmPrimitive> predicate,
                                             boolean useSelected)
```
    The *result* depends on the current map selection state IF use_selected is true.
    
    Parameters:
    
    p - the point for which to search the nearest segment.
    
    predicate - the returned object has to fulfill certain properties.
    
    useSelected - whether selected way segments should be preferred.
    
    Returns:
    
    The nearest way segment to point p, and, depending on use_selected, prefers a selected way segment, if found.
    
    See Also:
    
    getNearestWaySegments(Point, Collection, Predicate)
  - getNearestWaySegment
```
public final WaySegment getNearestWaySegment(java.awt.Point p,
                                             java.util.function.Predicate<OsmPrimitive> predicate,
                                             boolean useSelected,
                                             java.util.Collection<OsmPrimitive> preferredRefs)
```
    The *result* depends on the current map selection state IF use_selected is true.
    
    Parameters:
    
    p - the point for which to search the nearest segment.
    
    predicate - the returned object has to fulfill certain properties.
    
    useSelected - whether selected way segments should be preferred.
    
    preferredRefs - - prefer segments related to these primitives, may be null
    
    Returns:
    
    The nearest way segment to point p, and, depending on use_selected, prefers a selected way segment, if found. Also prefers segments of ways that are related to one of preferredRefs primitives
    
    Since:
    
    6065
    
    See Also:
    
    getNearestWaySegments(Point, Collection, Predicate)
  - getNearestWaySegment
```
public final WaySegment getNearestWaySegment(java.awt.Point p,
                                             java.util.function.Predicate<OsmPrimitive> predicate)
```
    Convenience method to getNearestWaySegment(Point, Predicate, boolean).
    
    Parameters:
    
    p - the point for which to search the nearest segment.
    
    predicate - the returned object has to fulfill certain properties.
    
    Returns:
    
    The nearest way segment to point p.
  - getNearestWays
```
public final java.util.List<Way> getNearestWays(java.awt.Point p,
                                                java.util.Collection<Way> ignore,
                                                java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the perpendicular distance to point p.
    
    Parameters:
    
    p - the point for which to search the nearest ways.
    
    ignore - a collection of ways which are not to be returned.
    
    predicate - the returned object has to fulfill certain properties.
    
    Returns:
    
    all nearest ways to the screen point given that are not in ignore.
    
    See Also:
    
    getNearestWaySegments(Point, Collection, Predicate)
  - getNearestWays
```
public final java.util.List<Way> getNearestWays(java.awt.Point p,
                                                java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the perpendicular distance to point p.
    
    Parameters:
    
    p - the point for which to search the nearest ways.
    
    predicate - the returned object has to fulfill certain properties.
    
    Returns:
    
    all nearest ways to the screen point given.
    
    See Also:
    
    getNearestWays(Point, Collection, Predicate)
  - getNearestWay
```
public final Way getNearestWay(java.awt.Point p,
                               java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* depends on the current map selection state.
    
    Parameters:
    
    p - the point for which to search the nearest segment.
    
    predicate - the returned object has to fulfill certain properties.
    
    Returns:
    
    The nearest way to point p, prefer a selected way if there are multiple nearest.
    
    See Also:
    
    getNearestWaySegment(Point, Predicate)
  - getNearestNodesOrWays
```
public final java.util.List<OsmPrimitive> getNearestNodesOrWays(java.awt.Point p,
                                                                java.util.Collection<OsmPrimitive> ignore,
                                                                java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the distance to point p.
    First, nodes will be searched. If there are nodes within BBox found, return a collection of those nodes only.
    If no nodes are found, search for nearest ways. If there are ways within BBox found, return a collection of those ways only.
    If nothing is found, return an empty collection.
    
    Parameters:
    
    p - The point on screen.
    
    ignore - a collection of ways which are not to be returned.
    
    predicate - the returned object has to fulfill certain properties.
    
    Returns:
    
    Primitives nearest to the given screen point that are not in ignore.
    
    See Also:
    
    getNearestNodes(Point, Collection, Predicate), getNearestWays(Point, Collection, Predicate)
  - getNearestNodesOrWays
```
public final java.util.List<OsmPrimitive> getNearestNodesOrWays(java.awt.Point p,
                                                                java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the distance to point p.
    
    Parameters:
    
    p - The point on screen.
    
    predicate - the returned object has to fulfill certain properties.
    
    Returns:
    
    Primitives nearest to the given screen point.
    
    See Also:
    
    getNearestNodesOrWays(Point, Collection, Predicate)
  - isPrecedenceNode
```
private boolean isPrecedenceNode(Node osm,
                                 java.awt.Point p,
                                 boolean useSelected)
```
    This is used as a helper routine to getNearestNodeOrWay(Point, Predicate, boolean) It decides, whether to yield the node to be tested or look for further (way) candidates.
    
    Parameters:
    
    osm - node to check
    
    p - point clicked
    
    useSelected - whether to prefer selected nodes
    
    Returns:
    
    true, if the node fulfills the properties of the function body
  - getNearestNodeOrWay
```
public final OsmPrimitive getNearestNodeOrWay(java.awt.Point p,
                                              java.util.function.Predicate<OsmPrimitive> predicate,
                                              boolean useSelected)
```
    The *result* depends on the current map selection state IF use_selected is true.
    IF use_selected is true, use getNearestNode(Point, Predicate) to find the nearest, selected node. If not found, try getNearestWaySegment(Point, Predicate) to find the nearest selected way.
    IF use_selected is false, or if no selected primitive was found, do the following.
    If the nearest node found is within 4px of p, simply take it. Else, find the nearest way segment. Then, if p is closer to its middle than to the node, take the way segment, else take the node.
    Finally, if no nearest primitive is found at all, return null.
    
    Parameters:
    
    p - The point on screen.
    
    predicate - the returned object has to fulfill certain properties.
    
    useSelected - whether to prefer primitives that are currently selected or referred by selected primitives
    
    Returns:
    
    A primitive within snap-distance to point p, that is chosen by the algorithm described.
    
    See Also:
    
    getNearestNode(Point, Predicate), getNearestWay(Point, Predicate)
  - project
```
public static java.awt.geom.Point2D project(double r,
                                            java.awt.geom.Point2D a,
                                            java.awt.geom.Point2D b)
```
    if r = 0 returns a, if r=1 returns b, if r = 0.5 returns center between a and b, etc.
    
    Parameters:
    
    r - scale value
    
    a - root of vector
    
    b - vector
    
    Returns:
    
    new point at a + r*(ab)
  - getAllNearest
```
public final java.util.List<OsmPrimitive> getAllNearest(java.awt.Point p,
                                                        java.util.Collection<OsmPrimitive> ignore,
                                                        java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the distance to point p.
    
    Parameters:
    
    p - The point on screen.
    
    ignore - a collection of ways which are not to be returned.
    
    predicate - the returned object has to fulfill certain properties.
    
    Returns:
    
    a list of all objects that are nearest to point p and not in ignore or an empty list if nothing was found.
  - getAllNearest
```
public final java.util.List<OsmPrimitive> getAllNearest(java.awt.Point p,
                                                        java.util.function.Predicate<OsmPrimitive> predicate)
```
    The *result* does not depend on the current map selection state, neither does the result *order*. It solely depends on the distance to point p.
    
    Parameters:
    
    p - The point on screen.
    
    predicate - the returned object has to fulfill certain properties.
    
    Returns:
    
    a list of all objects that are nearest to point p or an empty list if nothing was found.
    
    See Also:
    
    getAllNearest(Point, Collection, Predicate)
  - getProjection
```
public Projection getProjection()
```
    Returns the projection to be used in calculating stuff.
    
    Returns:
    
    The projection to be used in calculating stuff.
  - helpTopic
```
public java.lang.String helpTopic()
```
    Description copied from interface: Helpful
    
    Returns the help topic on JOSM wiki for this feature.
    
    Specified by:
    
    helpTopic in interface Helpful
    
    Returns:
    
    the help topic on JOSM wiki for this feature
  - getViewID
```
public int getViewID()
```
    Return an ID which is unique as long as viewport dimensions are the same
    
    Returns:
    
    A unique ID, as long as viewport dimensions are the same
  - setNewCursor
```
public void setNewCursor(java.awt.Cursor cursor,
                         java.lang.Object reference)
```
    Set new cursor.
    
    Parameters:
    
    cursor - The new cursor to use.
    
    reference - A reference object that can be passed to the next set/reset calls to identify the caller.
  - setNewCursor
```
public void setNewCursor(int cursor,
                         java.lang.Object reference)
```
    Set new cursor.
    
    Parameters:
    
    cursor - the type of predefined cursor
    
    reference - A reference object that can be passed to the next set/reset calls to identify the caller.
  - resetCursor
```
public void resetCursor(java.lang.Object reference)
```
    Remove the new cursor and reset to previous
    
    Parameters:
    
    reference - Cursor reference
  - getCursorManager
```
public CursorManager getCursorManager()
```
    Gets the cursor manager that is used for this NavigatableComponent.
    
    Returns:
    
    The cursor manager.
  - getMaxScale
```
public double getMaxScale()
```
    Get a max scale for projection that describes world in 1/512 of the projection unit
    
    Returns:
    
    max scale

Class NavigatableComponent

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JComponent

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

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

Field Summary

Fields inherited from class javax.swing.JComponent

Fields inherited from class java.awt.Component

Fields inherited from interface java.awt.image.ImageObserver

Constructor Summary

Method Summary

Methods inherited from class javax.swing.JComponent

Methods inherited from class java.awt.Container

Methods inherited from class java.awt.Component

Methods inherited from class java.lang.Object

Field Detail

ALIGNMENT_EPSILON

isSelectablePredicate

PROP_SNAP_DISTANCE

PROP_ZOOM_RATIO

PROP_ZOOM_INTERMEDIATE_STEPS

PROP_ZOOM_SCALE_FOLLOW_NATIVE_RES_AT_LOAD

nativeScaleLayer

zoomChangeListeners

primitiveHoverListeners

previousHoveredPrimitive

primitiveHoverMouseListenerHelper

hierarchyListenerNavigatableComponent

componentListenerNavigatableComponent

initialViewport

cursorManager

state

projectionChangeListener

zoomUndoBuffer

zoomRedoBuffer

zoomTimestamp

Constructor Detail

NavigatableComponent

Method Detail

removeZoomChangeListener

addZoomChangeListener

fireZoomChanged

removePrimitiveHoverListener

addPrimitiveHoverListener

firePrimitiveHovered

updateHoveredPrimitive

addNotify

removeNotify

addPrimitiveHoverMouseListeners

removePrimitiveHoverMouseListeners

setNativeScaleLayer

getNativeScaleLayer

scaleZoomIn

scaleZoomOut

scaleZoomManyTimes

scaleRound

scaleFloor

scaleSnap

zoomIn

zoomOut

updateLocationState

isVisibleOnScreen

fixProjection

getState

getDistText

getDistText

getDist100PixelText

getDist100Pixel

getDist100Pixel

getCenter

getScale

getEastNorth

getProjectionBounds

getMaxProjectionBounds

getRealBounds

getLatLon

getLatLon

getProjectionBounds

getLatLonBounds

getAffineTransform