/*
* Player Java Client 3 - Graphics2DInterface.java
* Copyright (C) 2006 Radu Bogdan Rusu
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*
*/
package javaclient3;
import java.io.IOException;
import javaclient3.structures.PlayerMsgHdr;
import javaclient3.structures.graphics2d.PlayerGraphics2dCmdPoints;
import javaclient3.structures.graphics2d.PlayerGraphics2dCmdPolygon;
import javaclient3.structures.graphics2d.PlayerGraphics2dCmdPolyline;
import javaclient3.xdr.OncRpcException;
import javaclient3.xdr.XdrBufferEncodingStream;
/**
* The graphics2d interface provides an interface to graphics devices. Drivers
* can implement this interface to provide clients and other drivers with
* graphics output. For example, Stage models present this interface to allow
* clients to draw in the Stage window.
* @author Radu Bogdan Rusu
* @version
* <ul>
* <li>v3.0 - Player 3.0 supported
* </ul>
*/
public class Graphics2DInterface extends PlayerDevice {
/**
* Constructor for Graphics2DInterface.
* @param pc a reference to the PlayerClient object
*/
public Graphics2DInterface (PlayerClient pc) { super(pc); }
/**
* This interface produces no data.
*/
public synchronized void readData (PlayerMsgHdr header) { }
/**
* Requests: This interface accepts no requests.
* @param header Player header
*/
public void handleResponse (PlayerMsgHdr header) { }
/**
* Command: Clear screen (PLAYER_GRAPHICS2D_CMD_CLEAR).
* <br><br>
*/
public void clearScreen () {
try {
sendHeader (PLAYER_MSGTYPE_CMD, PLAYER_GRAPHICS2D_CMD_CLEAR, 0);
os.flush ();
} catch (IOException e) {
throw new PlayerException
("[Graphics2D] : Couldn't send clear screen command: " +
e.toString(), e);
}
}
/**
* Command: Draw points (PLAYER_GRAPHICS2D_CMD_POINTS).
* <br><br>
* Draw some points.
* @param pgcp a PlayerGraphics2dCmdPoints structure holding the required
* data
*/
public void drawPoints (PlayerGraphics2dCmdPoints pgcp) {
try {
int points = pgcp.getCount ();
if (points > PLAYER_GRAPHICS2D_MAX_POINTS)
points = PLAYER_GRAPHICS2D_MAX_POINTS;
int size = 8 + (points * 16) + 16;
sendHeader
(PLAYER_MSGTYPE_CMD, PLAYER_GRAPHICS2D_CMD_POINTS, size);
XdrBufferEncodingStream xdr = new XdrBufferEncodingStream (size);
xdr.beginEncoding (null, 0);
xdr.xdrEncodeInt (points);
xdr.xdrEncodeInt (points);
for (int i = 0; i < points; i++) {
xdr.xdrEncodeDouble (pgcp.getPoints ()[i].getPx ());
xdr.xdrEncodeDouble (pgcp.getPoints ()[i].getPy ());
}
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getAlpha () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getRed () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getGreen () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getBlue () & 0x000000FF));
xdr.endEncoding ();
os.write (xdr.getXdrData (), 0, xdr.getXdrLength ());
xdr.close ();
os.flush ();
} catch (IOException e) {
throw new PlayerException
("[Graphics2D] : Couldn't send draw command: " +
e.toString(), e);
} catch (OncRpcException e) {
throw new PlayerException
("[Graphics2D] : Error while XDR-encoding draw command: " +
e.toString(), e);
}
}
/**
* Command: Draw polyline (PLAYER_GRAPHICS2D_CMD_POLYLINE).
* <br><br>
* Draw a series of straight line segments between a set of points.
* @param pgcp a PlayerGraphics2dCmdPolyline structure holding the required
* data
*/
public void drawPolyline (PlayerGraphics2dCmdPolyline pgcp) {
try {
int points = pgcp.getCount ();
if (points > PLAYER_GRAPHICS2D_MAX_POINTS)
points = PLAYER_GRAPHICS2D_MAX_POINTS;
int size = 8 + (points * 16) + 16;
sendHeader
(PLAYER_MSGTYPE_CMD, PLAYER_GRAPHICS2D_CMD_POLYLINE, size);
XdrBufferEncodingStream xdr = new XdrBufferEncodingStream (size);
xdr.beginEncoding (null, 0);
xdr.xdrEncodeInt (points);
xdr.xdrEncodeInt (points);
for (int i = 0; i < points; i++) {
xdr.xdrEncodeDouble (pgcp.getPoints ()[i].getPx ());
xdr.xdrEncodeDouble (pgcp.getPoints ()[i].getPy ());
}
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getAlpha () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getRed () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getGreen () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getBlue () & 0x000000FF));
xdr.endEncoding ();
os.write (xdr.getXdrData (), 0, xdr.getXdrLength ());
xdr.close ();
os.flush ();
} catch (IOException e) {
throw new PlayerException
("[Graphics2D] : Couldn't send draw command: " +
e.toString(), e);
} catch (OncRpcException e) {
throw new PlayerException
("[Graphics2D] : Error while XDR-encoding draw command: " +
e.toString(), e);
}
}
/**
* Command: Draw polygon (PLAYER_GRAPHICS2D_CMD_POLYGON)
* <br><br>
* Draw a polygon.
* @param pgcp a PlayerGraphics2dCmdPolygon structure holding the required
* data
*/
public void drawPolygon (PlayerGraphics2dCmdPolygon pgcp) {
try {
int points = pgcp.getCount ();
if (points > PLAYER_GRAPHICS2D_MAX_POINTS)
points = PLAYER_GRAPHICS2D_MAX_POINTS;
int size = 8 + (points * 16) + 16 + 16 + 4;
sendHeader
(PLAYER_MSGTYPE_CMD, PLAYER_GRAPHICS2D_CMD_POLYGON, size);
XdrBufferEncodingStream xdr = new XdrBufferEncodingStream (size);
xdr.beginEncoding (null, 0);
xdr.xdrEncodeInt (points);
xdr.xdrEncodeInt (points);
for (int i = 0; i < points; i++) {
xdr.xdrEncodeDouble (pgcp.getPoints ()[i].getPx ());
xdr.xdrEncodeDouble (pgcp.getPoints ()[i].getPy ());
}
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getAlpha () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getRed () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getGreen () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getColor ().getBlue () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getFill_color ().getAlpha () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getFill_color ().getRed () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getFill_color ().getGreen () & 0x000000FF));
xdr.xdrEncodeByte
((byte)(pgcp.getFill_color ().getBlue () & 0x000000FF));
xdr.xdrEncodeByte (pgcp.getFilled ());
xdr.endEncoding ();
os.write (xdr.getXdrData (), 0, xdr.getXdrLength ());
xdr.close ();
os.flush ();
} catch (IOException e) {
throw new PlayerException
("[Graphics2D] : Couldn't send draw command: " +
e.toString(), e);
} catch (OncRpcException e) {
throw new PlayerException
("[Graphics2D] : Error while XDR-encoding draw command: " +
e.toString(), e);
}
}
}