// **********************************************************************
//
// <copyright>
//
// BBN Technologies
// 10 Moulton Street
// Cambridge, MA 02138
// (617) 873-8000
//
// Copyright (C) BBNT Solutions LLC. All rights reserved.
//
// </copyright>
// **********************************************************************
//
// $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/layer/link/LinkText.java,v $
// $RCSfile: LinkText.java,v $
// $Revision: 1.4.2.4 $
// $Date: 2008/01/25 17:44:27 $
// $Author: dietrick $
//
// **********************************************************************
package com.bbn.openmap.layer.link;
import com.bbn.openmap.omGraphics.OMText;
import com.bbn.openmap.proj.ProjMath;
import com.bbn.openmap.util.Debug;
import com.bbn.openmap.util.PropUtils;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
/**
*/
public class LinkText implements LinkGraphicConstants, LinkPropertiesConstants {
public static String DEFAULT_FONT = "-*-SansSerif-normal-o-normal--12-*-*-*-*-*-*";
/**
* Creates a text object, with Lat/Lon placement.
*
* @param latPoint latitude of the string, in decimal degrees.
* @param lonPoint longitude of the string, in decimal degrees.
* @param stuff the string to be displayed.
* @param font the Font description for the string.
* @param just the justification of the string.
* @param properties attributes for the graphic.
* @param dos DataOutputStream
* @throws IOException.
*/
public static void write(float latPoint, float lonPoint, String stuff,
String font, int just, LinkProperties properties,
DataOutputStream dos) throws IOException {
dos.write(Link.TEXT_HEADER.getBytes());
dos.writeByte(GRAPHICTYPE_TEXT);
dos.writeByte(RENDERTYPE_LATLON);
dos.writeFloat(latPoint);
dos.writeFloat(lonPoint);
dos.writeByte(just);
properties.setProperty(LPC_LINKTEXTSTRING, stuff);
properties.setProperty(LPC_LINKTEXTFONT, font);
properties.write(dos);
}
/**
* Creates a text object, with XY placement, and default SansSerif font.
*
* @param x1 horizontal window pixel location of the string.
* @param y1 vertical window pixel location of the string.
* @param stuff the string to be displayed.
* @param font the Font description for the string.
* @param just the justification of the string
* @param properties attributes for the graphic.
* @param dos DataOutputStream
* @throws IOException.
*/
public static void write(int x1, int y1, String stuff, String font,
int just, LinkProperties properties,
DataOutputStream dos) throws IOException {
dos.write(Link.TEXT_HEADER.getBytes());
dos.writeByte(GRAPHICTYPE_TEXT);
dos.writeByte(RENDERTYPE_XY);
dos.writeInt(x1);
dos.writeInt(y1);
dos.writeByte(just);
properties.setProperty(LPC_LINKTEXTSTRING, stuff);
properties.setProperty(LPC_LINKTEXTFONT, font);
properties.write(dos);
}
/**
* Rendertype is RENDERTYPE_OFFSET.
*
* @param latPoint latitude of center of text/ellipse.
* @param lonPoint longitude of center of text/ellipse.
* @param offset_x1 # pixels to the right the center will be moved from
* lonPoint.
* @param offset_y1 # pixels down that the center will be moved from
* latPoint.
* @param stuff the string to be displayed.
* @param font the Font description for the string.
* @param just the justification of the string.
* @param properties attributes for the graphic.
* @param dos DataOutputStream
* @throws IOException.
*/
public static void write(float latPoint, float lonPoint, int offset_x1,
int offset_y1, String stuff, String font,
int just, LinkProperties properties,
DataOutputStream dos) throws IOException {
dos.write(Link.TEXT_HEADER.getBytes());
dos.writeByte(GRAPHICTYPE_TEXT);
dos.writeByte(RENDERTYPE_OFFSET);
dos.writeFloat(latPoint);
dos.writeFloat(lonPoint);
dos.writeInt(offset_x1);
dos.writeInt(offset_y1);
dos.writeByte(just);
properties.setProperty(LPC_LINKTEXTSTRING, stuff);
properties.setProperty(LPC_LINKTEXTFONT, font);
properties.write(dos);
}
/**
* Write a text to the link.
*/
public static void write(OMText text, Link link, LinkProperties props)
throws IOException {
switch (text.getRenderType()) {
case OMText.RENDERTYPE_LATLON:
write(text.getLat(),
text.getLon(),
text.getData(),
OMText.fontToXFont(text.getFont()),
text.getJustify(),
props,
link.dos);
break;
case OMText.RENDERTYPE_XY:
write(text.getX(),
text.getY(),
text.getData(),
OMText.fontToXFont(text.getFont()),
text.getJustify(),
props,
link.dos);
break;
case OMText.RENDERTYPE_OFFSET:
write(text.getLat(),
text.getLon(),
text.getX(),
text.getY(),
text.getData(),
OMText.fontToXFont(text.getFont()),
text.getJustify(),
props,
link.dos);
break;
default:
Debug.error("LinkText.write: text rendertype unknown.");
}
}
/**
* Read the DataInputStream to create a OMText. Assumes the LinkText header
* has already been read.
*
* @param dis DataInputStream
* @return OMText
* @throws IOException
* @see com.bbn.openmap.omGraphics.OMText
*/
public static OMText read(DataInputStream dis) throws IOException {
return read(dis, null);
}
/**
* Read the DataInputStream to create a OMText. Assumes the LinkText header
* has already been read.
*
* @param dis DataInputStream
* @param propertiesBuffer a LinkProperties object used to cache previous
* settings that can be set on the OMText being read.
* @return OMText
* @throws IOException
* @see com.bbn.openmap.omGraphics.OMText
*/
public static OMText read(DataInputStream dis,
LinkProperties propertiesBuffer)
throws IOException {
OMText text = null;
float lat = 0;
float lon = 0;
int x = 0;
int y = 0;
int just = 0;
String string, font;
int renderType = dis.readByte();
switch (renderType) {
case RENDERTYPE_OFFSET:
lat = dis.readFloat();
lon = dis.readFloat();
case RENDERTYPE_XY:
x = dis.readInt();
y = dis.readInt();
break;
case RENDERTYPE_LATLON:
default:
lat = dis.readFloat();
lon = dis.readFloat();
}
just = dis.readByte();
LinkProperties properties = (LinkProperties) LinkProperties.read(dis,
propertiesBuffer).clone();
string = properties.getProperty(LPC_LINKTEXTSTRING);
font = properties.getProperty(LPC_LINKTEXTFONT);
if (string == null)
string = "";
if (font == null)
font = DEFAULT_FONT;
switch (renderType) {
case RENDERTYPE_OFFSET:
text = new OMText(lat, lon, x, y, string, OMText.rebuildFont(font), just);
break;
case RENDERTYPE_XY:
text = new OMText(x, y, string, OMText.rebuildFont(font), just);
break;
case RENDERTYPE_LATLON:
default:
text = new OMText(lat, lon, string, OMText.rebuildFont(font), just);
}
if (text != null) {
properties.setProperties(text);
text.setBaseline(PropUtils.intFromProperties(properties,
LPC_LINKTEXTBASELINE,
BASELINE_BOTTOM));
text.setRotationAngle((double) ProjMath.degToRad(PropUtils.floatFromProperties(properties,
LPC_LINKROTATION,
0.0f)));
}
return text;
}
}