GD.Data

Class Converter

java.lang.Object

GD.Data.Converter

public class Converter
extends java.lang.Object

Coordinate factory. It manages coordinates conversion between tracker, client and server coordinate systems. It is implemented as a singleton and requires to be initialized by JGDVncCanvas instance.

Version:

2.0.0

Author:

Andrey Shipilov

Field Summary

Fields

Modifier and Type	Field and Description
private static ICoordinateConverter	mCnv Instance of the coordinate converter, it contains information, needed for scaling and calculating offset of the coordinates

Constructor Summary

Constructors

Constructor and Description
Converter()

Method Summary

Methods

Modifier and Type	Method and Description
static java.awt.Point	ClientToDisplay(ICoordinates coord)
static java.awt.Point	ClientToDisplay(int x, int y) Convert client coordinates to the display coordinates.
static java.awt.Point	ClientToDisplay(java.awt.Point pnt) Convert client coordinates to the display coordinates.
static java.awt.Point	ClientToServer(ICoordinates coord)
static java.awt.Point	ClientToServer(int x, int y) Convert client coordinates to the server coordinates.
static java.awt.Point	ClientToServer(java.awt.Point pnt) Convert client coordinates to the server coordinates.
static java.awt.Point	DisplayToClient(ICoordinates coord)
static java.awt.Point	DisplayToClient(int x, int y) Convert display (tracker) coordinates to the client coordinates.
static java.awt.Point	DisplayToClient(java.awt.Point pnt) Convert display (tracker) coordinates to the client coordinates.
static java.awt.Point	DisplayToServer(ICoordinates coord)
static java.awt.Point	DisplayToServer(int x, int y) Convert display coordinates to the server coordinates.
static java.awt.Point	DisplayToServer(java.awt.Point pnt) Convert display coordinates to the server coordinates.
static void	initialize(ICoordinateConverter cnv) Initialize factory with canvas instance.
static boolean	isInitialized() Check if the factory was already initialized
static boolean	IsInsideDisplay(int x, int y)
static boolean	IsInsideDisplay(java.awt.Point pnt)
static java.awt.Point	ServerToClient(ICoordinates coord)
static java.awt.Point	ServerToClient(int x, int y) Convert server coordinates to the client coordinates.
static java.awt.Point	ServerToClient(java.awt.Point pnt) Convert server coordinates to the client coordinates.
static java.awt.Point	ServerToDisplay(ICoordinates coord)
static java.awt.Point	ServerToDisplay(int x, int y) Convert server coordinates to the display coordinates.
static java.awt.Point	ServerToDisplay(java.awt.Point pnt) Convert server coordinates to the display coordinates.
static int	StringToInt(java.lang.String txt, int defValue)

Methods inherited from class java.lang.Object

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

Field Detail

mCnv

private static ICoordinateConverter mCnv

Instance of the coordinate converter, it contains information, needed for scaling and calculating offset of the coordinates

Constructor Detail

Converter

public Converter()

Method Detail

IsInsideDisplay

public static boolean IsInsideDisplay(int x,
                      int y)

IsInsideDisplay

public static boolean IsInsideDisplay(java.awt.Point pnt)

ClientToDisplay

public static java.awt.Point ClientToDisplay(int x,
                             int y)

Convert client coordinates to the display coordinates. Display coordinate system origin is left upper corner of the screen (0, 0). There is no difference in scaling between display and client coordinates. Only offset should be applied.

Parameters:

x - X coordinate

y - Y coordinate

Returns:

Point in display (tracker) coordinate system

ClientToDisplay

public static java.awt.Point ClientToDisplay(java.awt.Point pnt)

Convert client coordinates to the display coordinates. Display coordinate system origin is left upper corner of the screen (0, 0). There is no difference in scaling between display and client coordinates. Only offset should be applied.

Parameters:

pnt - Point to be converted

Returns:

Point in display (tracker) coordinate system

ClientToDisplay

public static java.awt.Point ClientToDisplay(ICoordinates coord)

ClientToServer

public static java.awt.Point ClientToServer(int x,
                            int y)

Convert client coordinates to the server coordinates. Client coordinates have the same origin as server. Only scaling should be applied.

Parameters:

x - X coordinate

y - Y coordinate

Returns:

Point in server coordinate system

ClientToServer

public static java.awt.Point ClientToServer(java.awt.Point pnt)

Convert client coordinates to the server coordinates. Client coordinates have the same origin as server. Only scaling should be applied.

Parameters:

pnt - Point to be converted

Returns:

Point in server coordinate system

ClientToServer

public static java.awt.Point ClientToServer(ICoordinates coord)

DisplayToClient

public static java.awt.Point DisplayToClient(int x,
                             int y)

Convert display (tracker) coordinates to the client coordinates. Display coordinate system origin is left upper corner of the screen (0, 0). There is no difference in scaling between display and client coordinates. Only offset should be calculated.

Parameters:

x - X coordinate

y - Y coordinate

Returns:

Point in client coordinate system

DisplayToClient

public static java.awt.Point DisplayToClient(java.awt.Point pnt)

Convert display (tracker) coordinates to the client coordinates. Display coordinate system origin is left upper corner of the screen (0, 0). There is no difference in scaling between display and client coordinates. Only offset should be calculated.

Parameters:

pnt - Point to be converted

Returns:

Point in client coordinate system

DisplayToClient

public static java.awt.Point DisplayToClient(ICoordinates coord)

DisplayToServer

public static java.awt.Point DisplayToServer(int x,
                             int y)

Convert display coordinates to the server coordinates. It converts display -> client -> server coordinates.

Parameters:

x - X coordinate

y - Y coordinate

Returns:

Point in server coordinate system

DisplayToServer

public static java.awt.Point DisplayToServer(java.awt.Point pnt)

Convert display coordinates to the server coordinates. It converts display -> client -> server coordinates.

Parameters:

pnt - Point to be converted

Returns:

Point in server coordinate system

DisplayToServer

public static java.awt.Point DisplayToServer(ICoordinates coord)

initialize

public static void initialize(ICoordinateConverter cnv)

Initialize factory with canvas instance. No conversions will be performed before initialization

Parameters:

cnv - JGDVncCanvas instance

isInitialized

public static boolean isInitialized()

Check if the factory was already initialized

Returns:

false if canvas instance was not initialized yet

ServerToClient

public static java.awt.Point ServerToClient(int x,
                            int y)

Convert server coordinates to the client coordinates. This coordinates are used to draw gaze mark upon shared desktop image. No offset should be applied as origin of coordinate system of shared area is the same as the origin of canvas.

Parameters:

x - X coordinate

y - Y coordinate

Returns:

Point in client coordinate system

ServerToClient

public static java.awt.Point ServerToClient(java.awt.Point pnt)

Convert server coordinates to the client coordinates. This coordinates are used to draw gaze mark upon shared desktop image. No offset should be applied as origin of coordinate system of shared area is the same as the origin of canvas.

Parameters:

pnt - Point to be converted

Returns:

Point in client coordinate system

ServerToClient

public static java.awt.Point ServerToClient(ICoordinates coord)

ServerToDisplay

public static java.awt.Point ServerToDisplay(int x,
                             int y)

Convert server coordinates to the display coordinates. It converts server -> client -> display coordinates.

Parameters:

x - X coordinate

y - Y coordinate

Returns:

Point in display (tracker) coordinate system

ServerToDisplay

public static java.awt.Point ServerToDisplay(java.awt.Point pnt)

Convert server coordinates to the display coordinates. It converts server -> client -> display coordinates.

Parameters:

pnt - Point to be converted

Returns:

Point in display (tracker) coordinate system

ServerToDisplay

public static java.awt.Point ServerToDisplay(ICoordinates coord)

StringToInt

public static int StringToInt(java.lang.String txt,
              int defValue)