org.eclipse.nebula.widgets.geomap.internal

Class InternalGeoMap

java.lang.Object

org.eclipse.swt.widgets.Widget

org.eclipse.swt.widgets.Control

org.eclipse.swt.widgets.Scrollable

org.eclipse.swt.widgets.Composite

org.eclipse.swt.widgets.Canvas

org.eclipse.nebula.widgets.geomap.internal.InternalGeoMap

All Implemented Interfaces:

GeoMapHelperListener, GeoMapPositioned, org.eclipse.swt.graphics.Drawable

Direct Known Subclasses:

GeoMap

public class InternalGeoMap
extends org.eclipse.swt.widgets.Canvas
implements GeoMapPositioned, GeoMapHelperListener

License is EPL (Eclipse Public License) http://www.eclipse.org/legal/epl-v10.html. Contact at stepan.rutz@gmx.de

Version:

$Revision$

Field Summary

Fields

Modifier and Type	Field and Description
protected GeoMapHelper	geoMapHelper The helper object for loading images.

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

handle

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	InternalGeoMap(org.eclipse.swt.widgets.Composite parent, int style, org.eclipse.swt.graphics.Point mapPosition, int zoom, int cacheSize) Initializes a new InternalGeoMap.

Method Summary

Modifier and Type	Method and Description
void	addInternalGeoMapListener(InternalGeoMapListener listener) Adds an InternalGeoMapListener
org.eclipse.swt.graphics.Point	getMapPosition() Gets the position of the upper left corner of the map.
int	getMaxZoom() Gets the maximum supported zoom level
int	getZoom() Gets the current zoom level
(package private) void	redraw(TileRef tile)
void	removeInternalGeoMapListener(InternalGeoMapListener listener) Removes an InternalGeoMapListener
void	setMapPosition(int x, int y) Sets the position of the upper left corner of the map.
void	setZoom(int zoom) Sets the current zoom level
void	tileUpdated(TileRef tileRef) Notifies listener that a tile has been updated and may need (re)painting

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

drawBackground, getCaret, getIME, scroll, setCaret, setFont, setIME

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

changed, checkSubclass, drawBackground, getBackgroundMode, getChildren, getLayout, getLayoutDeferred, getTabList, isLayoutDeferred, layout, layout, layout, layout, layout, setBackgroundMode, setFocus, setLayout, setLayoutDeferred, setTabList

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

computeTrim, getClientArea, getHorizontalBar, getScrollbarsMode, getVerticalBar

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

addControlListener, addDragDetectListener, addFocusListener, addGestureListener, addHelpListener, addKeyListener, addMenuDetectListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addMouseWheelListener, addPaintListener, addTouchListener, addTraverseListener, computeSize, computeSize, dragDetect, dragDetect, forceFocus, getAccessible, getBackground, getBackgroundImage, getBorderWidth, getBounds, getCursor, getDragDetect, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getOrientation, getParent, getRegion, getShell, getSize, getTextDirection, getToolTipText, getTouchEnabled, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, print, redraw, redraw, removeControlListener, removeDragDetectListener, removeFocusListener, removeGestureListener, removeHelpListener, removeKeyListener, removeMenuDetectListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removeMouseWheelListener, removePaintListener, removeTouchListener, removeTraverseListener, requestLayout, setBackground, setBackgroundImage, setBounds, setBounds, setCapture, setCursor, setDragDetect, setEnabled, setForeground, setLayoutData, setLocation, setLocation, setMenu, setOrientation, setParent, setRedraw, setRegion, setSize, setSize, setTextDirection, setToolTipText, setTouchEnabled, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, traverse, traverse, update

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

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.swt.graphics.Drawable

isAutoScalable

Field Detail

geoMapHelper

protected GeoMapHelper geoMapHelper

The helper object for loading images.

Constructor Detail

InternalGeoMap

protected InternalGeoMap(org.eclipse.swt.widgets.Composite parent,
                         int style,
                         org.eclipse.swt.graphics.Point mapPosition,
                         int zoom,
                         int cacheSize)

Initializes a new InternalGeoMap.

Parameters:

parent - SWT parent Composite

style - SWT style as in Canvas, since this class inherits from it. Double buffering is always enabed.

mapPosition - initial mapPosition.

zoom - initial map zoom

cacheSize - initial cache size, eg number of tile-images that are kept in cache to prevent reloading from the network.

Method Detail

redraw

void redraw(TileRef tile)

tileUpdated

public void tileUpdated(TileRef tileRef)

Description copied from interface: GeoMapHelperListener

Notifies listener that a tile has been updated and may need (re)painting

Specified by:

tileUpdated in interface GeoMapHelperListener

Parameters:

tileRef - the reference to the updated tile

addInternalGeoMapListener

public void addInternalGeoMapListener(InternalGeoMapListener listener)

Adds an InternalGeoMapListener

Parameters:

listener -

removeInternalGeoMapListener

public void removeInternalGeoMapListener(InternalGeoMapListener listener)

Removes an InternalGeoMapListener

Parameters:

listener -

getMapPosition

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

Description copied from interface: GeoMapPositioned

Gets the position of the upper left corner of the map. The resolution depends on the zoom level.

Specified by:

getMapPosition in interface GeoMapPositioned

Returns:

the position of the upper left corner of the map

setMapPosition

public void setMapPosition(int x,
                           int y)

Description copied from interface: GeoMapPositioned

Sets the position of the upper left corner of the map. The resolution depends on the zoom level.

Specified by:

setMapPosition in interface GeoMapPositioned

Parameters:

x - the x coordinate

y - the y coordinate

getZoom

public int getZoom()

Description copied from interface: GeoMapPositioned

Gets the current zoom level

Specified by:

getZoom in interface GeoMapPositioned

Returns:

the current zoom level

getMaxZoom

public int getMaxZoom()

Description copied from interface: GeoMapPositioned

Gets the maximum supported zoom level

Specified by:

getMaxZoom in interface GeoMapPositioned

Returns:

the maximum zoom level

setZoom

public void setZoom(int zoom)

Description copied from interface: GeoMapPositioned

Sets the current zoom level

Specified by:

setZoom in interface GeoMapPositioned

Parameters:

zoom - the new zoom level