org.placelab.demo.mapview
Class MapView

java.lang.Object
  org.eclipse.swt.widgets.Widget
      org.eclipse.swt.widgets.Control
          org.eclipse.swt.widgets.Scrollable
              org.eclipse.swt.widgets.Composite
                  org.placelab.util.swt.SwtScrolledComposite
                      org.placelab.demo.mapview.MapView

All Implemented Interfaces:

org.eclipse.swt.graphics.Drawable

Direct Known Subclasses:

TrackedMapView

public class MapView

extends SwtScrolledComposite

Field Summary

protected org.eclipse.swt.events.MouseEvent	dragBegin
protected GlyphRectangle	dragOutline
static boolean	drawBorder
protected GlyphHolder	holder
protected org.eclipse.swt.graphics.Cursor	iconCursor
protected org.eclipse.swt.graphics.Color	iconTextBg
protected MapBacking	mapData
protected java.util.Vector	mapHistory
protected org.eclipse.swt.graphics.Image	mapImage
protected GlyphImage	mapImageGlyph
protected org.eclipse.swt.graphics.Rectangle	oldBounds
java.util.Vector	overlays
protected java.util.Vector	placeIcons
protected java.util.Hashtable	places
protected static int	SHIFT
protected static double	SMALL_DEVICE_SIZE
protected double	zoom
protected double[]	zoomValues

Fields inherited from class org.eclipse.swt.widgets.Control

handle

Constructor Summary

MapView(org.eclipse.swt.widgets.Composite parent, int style)

MapView(org.eclipse.swt.widgets.Composite parent, int style, boolean useScrollBars)

Method Summary

void	addOverlay(MapViewOverlay overlay) Adds an overlay to the mapview.
protected void	clearPlaceIcons()
boolean	containsCoordinate(TwoDCoordinate coord)
void	doscroll(int x, int y)
void	dozoom()
GlyphHolder	getHolder()
MapBacking	getMapData()
org.eclipse.swt.graphics.Point	getMapSize()
double	getOriginLat() Gets the origin latitude of the currently onscreen map.
double	getOriginLon() Gets the origin longitude of the currently onscreen map.
org.eclipse.swt.widgets.Menu	getOverlaysMenu(org.eclipse.swt.widgets.Widget parent) Gets an menu containing all of the overlays loaded for the mapview.
double	getPixelsPerLat()
double	getPixelsPerLon()
org.eclipse.swt.graphics.Point	getPoint(TwoDCoordinate coord)
protected static boolean	getUseScrollBars(org.eclipse.swt.widgets.Display display)
double	getZoom()
void	handleKeyPress(org.eclipse.swt.events.KeyEvent e)
boolean	isInTigerMode()
boolean	isVisible()
int	latitudeToPixels(double lat)
int	longitudeToPixels(double lon)
void	onDispose()
void	overlayHasNewTopGlyph(MapViewOverlay overlay)
double	pixelsToLatitude(int pixelsY)
double	pixelsToLongitude(int pixelsX)
protected boolean	placeOnMap(PlaceBacking place)
void	removeOverlay(MapViewOverlay overlay)
void	saveMapAsImage(java.lang.String path, int imageFlags) Dumps the current state of the mapview to an image file at the specified path
void	setMapData(MapBacking d)
void	setOrigin(org.eclipse.swt.graphics.Point origin) Scrolls the content so that the specified point in the content is in the top left corner.
void	setPlaceSets(java.util.Hashtable placeSets) The placeSets are a Hashtable where place set names key to Hashtables where place names key to PlaceBackings
void	setSize(int width, int height)
void	setSize(org.eclipse.swt.graphics.Point size)
void	setZoom(double zoom)
protected void	shift(int x, int y)
void	zoomForRectangle(org.eclipse.swt.graphics.Rectangle area)
void	zoomIn()
void	zoomOut()

Methods inherited from class org.placelab.util.swt.SwtScrolledComposite

computeSize, getAlwaysShowScrollBars, getContent, getOrigin, layout, setAlwaysShowScrollBars, setContent, setExpandHorizontal, setExpandVertical, setLayout, setMinHeight, setMinSize, setMinSize, setMinWidth, setOrigin

Methods inherited from class org.eclipse.swt.widgets.Composite

checkSubclass, getChildren, getLayout, getTabList, layout, setFocus, setTabList

Methods inherited from class org.eclipse.swt.widgets.Scrollable

computeTrim, getClientArea, getHorizontalBar, getVerticalBar

Methods inherited from class org.eclipse.swt.widgets.Control

addControlListener, addFocusListener, addHelpListener, addKeyListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addPaintListener, addTraverseListener, computeSize, forceFocus, getAccessible, getBackground, getBorderWidth, getBounds, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getParent, getShell, getSize, getToolTipText, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isFocusControl, isReparentable, moveAbove, moveBelow, pack, pack, redraw, redraw, removeControlListener, removeFocusListener, removeHelpListener, removeKeyListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removePaintListener, removeTraverseListener, setBackground, setBounds, setBounds, setCapture, setCursor, setEnabled, setFont, setForeground, setLayoutData, setLocation, setLocation, setMenu, setParent, setRedraw, setToolTipText, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, update

Methods inherited from class org.eclipse.swt.widgets.Widget

addDisposeListener, addListener, checkWidget, dispose, getData, getData, getDisplay, getStyle, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, setData, setData, toString

Methods inherited from class java.lang.Object

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

Field Detail

holder

protected GlyphHolder holder

mapImageGlyph

protected GlyphImage mapImageGlyph

mapImage

protected org.eclipse.swt.graphics.Image mapImage

mapData

protected MapBacking mapData

mapHistory

protected java.util.Vector mapHistory

places

protected java.util.Hashtable places

placeIcons

protected java.util.Vector placeIcons

overlays

public java.util.Vector overlays

iconCursor

protected org.eclipse.swt.graphics.Cursor iconCursor

iconTextBg

protected org.eclipse.swt.graphics.Color iconTextBg

dragBegin

protected org.eclipse.swt.events.MouseEvent dragBegin

dragOutline

protected GlyphRectangle dragOutline

oldBounds

protected org.eclipse.swt.graphics.Rectangle oldBounds

zoomValues

protected double[] zoomValues

zoom

protected double zoom

SHIFT

protected static final int SHIFT

See Also:

Constant Field Values

SMALL_DEVICE_SIZE

protected static final double SMALL_DEVICE_SIZE

See Also:

Constant Field Values

drawBorder

public static boolean drawBorder

Constructor Detail

MapView

public MapView(org.eclipse.swt.widgets.Composite parent,
               int style)

MapView

public MapView(org.eclipse.swt.widgets.Composite parent,
               int style,
               boolean useScrollBars)

Method Detail

isVisible

public boolean isVisible()

getUseScrollBars

protected static boolean getUseScrollBars(org.eclipse.swt.widgets.Display display)

zoomForRectangle

public void zoomForRectangle(org.eclipse.swt.graphics.Rectangle area)

addOverlay

public void addOverlay(MapViewOverlay overlay)

Adds an overlay to the mapview. MapViewOverlays call this themselves when they are created, so you should never have to call it yourself

removeOverlay

public void removeOverlay(MapViewOverlay overlay)

overlayHasNewTopGlyph

public void overlayHasNewTopGlyph(MapViewOverlay overlay)

getOverlaysMenu

public org.eclipse.swt.widgets.Menu getOverlaysMenu(org.eclipse.swt.widgets.Widget parent)

Gets an menu containing all of the overlays loaded for the mapview. The menu items toggle the visibility of the overlays.

zoomIn

public void zoomIn()

zoomOut

public void zoomOut()

getZoom

public double getZoom()

setZoom

public void setZoom(double zoom)

handleKeyPress

public void handleKeyPress(org.eclipse.swt.events.KeyEvent e)

shift

protected void shift(int x,
                     int y)

setOrigin

public void setOrigin(org.eclipse.swt.graphics.Point origin)

Description copied from class: SwtScrolledComposite

Scrolls the content so that the specified point in the content is in the top left corner. If no content has been set, nothing will occur. Negative values will be ignored. Values greater than the maximum scroll distance will result in scrolling to the end of the scrollbar.

Overrides:

setOrigin in class SwtScrolledComposite

Parameters:

origin - the point on the content to appear in the top left corner

onDispose

public void onDispose()

clearPlaceIcons

protected void clearPlaceIcons()

getHolder

public GlyphHolder getHolder()

getMapSize

public org.eclipse.swt.graphics.Point getMapSize()

setMapData

public void setMapData(MapBacking d)

isInTigerMode

public boolean isInTigerMode()

setPlaceSets

public void setPlaceSets(java.util.Hashtable placeSets)

The placeSets are a Hashtable where place set names key to Hashtables where place names key to PlaceBackings

placeOnMap

protected boolean placeOnMap(PlaceBacking place)

getMapData

public MapBacking getMapData()

getOriginLat

public double getOriginLat()

Gets the origin latitude of the currently onscreen map. Note the origin is defined to be the lower left corner

getOriginLon

public double getOriginLon()

Gets the origin longitude of the currently onscreen map. Note the origin is defined to be the lower left corner

getPixelsPerLat

public double getPixelsPerLat()

getPixelsPerLon

public double getPixelsPerLon()

pixelsToLatitude

public double pixelsToLatitude(int pixelsY)

pixelsToLongitude

public double pixelsToLongitude(int pixelsX)

latitudeToPixels

public int latitudeToPixels(double lat)

longitudeToPixels

public int longitudeToPixels(double lon)

getPoint

public org.eclipse.swt.graphics.Point getPoint(TwoDCoordinate coord)

containsCoordinate

public boolean containsCoordinate(TwoDCoordinate coord)

doscroll

public void doscroll(int x,
                     int y)

dozoom

public void dozoom()

setSize

public void setSize(int width,
                    int height)

setSize

public void setSize(org.eclipse.swt.graphics.Point size)

saveMapAsImage

public void saveMapAsImage(java.lang.String path,
                           int imageFlags)
                    throws org.eclipse.swt.SWTException

Dumps the current state of the mapview to an image file at the specified path

Parameters:

path - the path to save the image to

imageFlags - the image type to save as (see org.eclipse.swt.graphics.ImageLoader)

Throws:

org.eclipse.swt.SWTException