package com.bbn.openmap.omGraphics.labeled;
import java.awt.Font;
import java.awt.Paint;
import java.awt.Point;
import com.bbn.openmap.omGraphics.OMSpline;
import com.bbn.openmap.omGraphics.OMText;
import com.bbn.openmap.proj.GeoProj;
import com.bbn.openmap.proj.Projection;
import com.bbn.openmap.util.Debug;
/**
* LabeledOMSpline Copied from LabeledOMPoly, because both OMSpline
* and LabeledOMPoly inherits from OMPoly
*
* @author Eric LEPICIER
* @version 15 juil. 2002
*/
public class LabeledOMSpline extends OMSpline implements LabeledOMGraphic {
protected OMText label;
protected Point offset;
protected boolean locateAtCenter = false;
protected int index = 0;
/**
* Default constructor.
*/
public LabeledOMSpline() {
super();
}
/**
* Create an LabeledOMSpline from a list of float lat/lon pairs.
*/
public LabeledOMSpline(double[] llPoints, int units, int lType) {
super(llPoints, units, lType);
}
/**
* Create an LabeledOMSpline from a list of float lat/lon pairs.
*/
public LabeledOMSpline(double[] llPoints, int units, int lType, int nsegs) {
super(llPoints, units, lType, nsegs);
}
/**
* Create an LabeledOMSpline from a list of xy pairs.
*/
public LabeledOMSpline(int[] xypoints) {
super(xypoints);
}
/**
* Create an x/y LabeledOMSpline.
*/
public LabeledOMSpline(int[] xPoints, int[] yPoints) {
super(xPoints, yPoints);
}
/**
* Create an x/y LabeledOMSpline at an offset from lat/lon.
*/
public LabeledOMSpline(float latPoint, float lonPoint, int[] xypoints,
int cMode) {
super(latPoint, lonPoint, xypoints, cMode);
}
/**
* Create an x/y LabeledOMSpline at an offset from lat/lon.
*/
public LabeledOMSpline(float latPoint, float lonPoint, int[] xPoints,
int[] yPoints, int cMode) {
super(latPoint, lonPoint, xPoints, yPoints, cMode);
}
/**
* Set the String for the label.
*/
public void setText(String label) {
getLabel().setData(label);
}
/**
* Get the String for the label.
*/
public String getText() {
return getLabel().getData();
}
protected OMText getLabel() {
if (label == null) {
label = new OMText(-1, -1, "", OMText.JUSTIFY_LEFT);
}
return label;
}
/**
* Set the Font for the label.
*/
public void setFont(Font f) {
getLabel().setFont(f);
}
/**
* Get the Font for the label.
*/
public Font getFont() {
return getLabel().getFont();
}
/**
* Set the justification setting for the label.
*
* @see com.bbn.openmap.omGraphics.OMText#JUSTIFY_LEFT
* @see com.bbn.openmap.omGraphics.OMText#JUSTIFY_CENTER
* @see com.bbn.openmap.omGraphics.OMText#JUSTIFY_RIGHT
*/
public void setJustify(int just) {
getLabel().setJustify(just);
}
/**
* Get the justification setting for the label.
*
* @see com.bbn.openmap.omGraphics.OMText#JUSTIFY_LEFT
* @see com.bbn.openmap.omGraphics.OMText#JUSTIFY_CENTER
* @see com.bbn.openmap.omGraphics.OMText#JUSTIFY_RIGHT
*/
public int getJustify() {
return getLabel().getJustify();
}
/**
* Tell the LabeledOMGraphic to calculate the location of the
* String that would put it in the middle of the OMGraphic.
*/
public void setLocateAtCenter(boolean set) {
locateAtCenter = set;
if (set) {
setJustify(OMText.JUSTIFY_CENTER);
getLabel().setFMHeight(OMText.ASCENT);
}
}
/**
* Get whether the LabeledOMGraphic is placing the label String in
* the center of the OMGraphic.
*/
public boolean isLocateAtCenter() {
return locateAtCenter;
}
/**
* Get the calculated center where the label string is drawn.
*/
public Point getCenter() {
return new Point();
}
/**
* Set the index of the OMGraphic coordinates where the drawing
* point of the label should be attached. The meaning of the point
* differs between OMGraphic types.
*/
public void setIndex(int index) {
this.index = index;
}
/**
* Get the index of the OMGraphic where the String will be
* rendered. The meaning of the index differs from OMGraphic type
* to OMGraphic type.
*/
public int getIndex() {
return index;
}
/**
* Set the x, y pixel offsets where the String should be rendered,
* from the location determined from the index point, or from the
* calculated center point. Point.x is the horizontal offset,
* Point.y is the vertical offset.
*/
public void setOffset(Point p) {
offset = p;
}
/**
* Get the x, y pixel offsets set for the rendering of the point.
*/
public Point getOffset() {
if (offset == null) {
offset = new Point();
}
return offset;
}
/**
* Set the angle by which the text is to rotated.
*
* @param angle the number of radians the text is to be rotated.
* Measured clockwise from horizontal. Positive numbers
* move the positive x axis toward the positive y axis.
*/
public void setRotationAngle(double angle) {
getLabel().setRotationAngle(angle);
}
/**
* Get the current rotation of the text.
*
* @return the text rotation.
*/
public double getRotationAngle() {
return getLabel().getRotationAngle();
}
boolean matchPolyPaint = true;
/**
* Set the line paint for the polygon. If the text paint hasn't
* been explicitly set, then the text paint will be set to this
* paint, too.
*/
public void setLinePaint(Paint paint) {
super.setLinePaint(paint);
if (matchPolyPaint) {
getLabel().setLinePaint(paint);
}
}
/**
* If not set to null, the text will be painted in a different
* color. If set to null, the text paint will match the poly edge
* paint.
*
* @param paint the Paint object for the text
*/
public void setTextPaint(Paint paint) {
if (paint != null) {
matchPolyPaint = false;
getLabel().setLinePaint(paint);
}
}
Point handyPoint = new Point();
protected Point getTextPoint(Projection proj) {
int i;
int avgx = 0;
int avgy = 0;
// Assuming that the rendertype is not unknown...
if (renderType == RENDERTYPE_LATLON && proj instanceof GeoProj) {
int numPoints = rawllpts.length / 2;
if (rawllpts.length < 2) {
// off screen...
handyPoint.setLocation(-10, -10);
return handyPoint;
}
if (locateAtCenter) {
for (i = 0; i < rawllpts.length; i += 2) {
((GeoProj) proj).forward(rawllpts[i],
rawllpts[i + 1],
handyPoint,
true);
avgy += handyPoint.getY();
avgx += handyPoint.getX();
}
avgy /= numPoints;
avgx /= numPoints;
handyPoint.setLocation(avgx, avgy);
} else {
if (index < 0)
index = 0;
if (index > numPoints)
index = numPoints - 1;
((GeoProj) proj).forward(rawllpts[2 * index],
rawllpts[2 * index + 1],
handyPoint,
true);
}
} else {
float[][] x = xpoints;
float[][] y = ypoints;
if (x[0].length < 2) {
// off screen...
handyPoint.setLocation(-10, -10);
return handyPoint;
}
if (locateAtCenter) {
for (i = 0; i < x[0].length; i++) {
avgx += x[0][i];
avgy += y[0][i];
}
handyPoint.setLocation(avgx / x[0].length, avgy / x[0].length);
} else {
if (index < 0)
index = 0;
if (index >= x[0].length)
index = x[0].length - 1;
handyPoint.setLocation(x[0][index], y[0][index]);
}
}
return handyPoint;
}
public boolean generate(Projection proj) {
boolean ret = super.generate(proj);
Point p = getTextPoint(proj);
label.setX((int) (p.getX() + getOffset().getX()));
label.setY((int) (p.getY() + getOffset().getY()));
if (Debug.debugging("labeled")) {
Debug.output("Setting label(" + label.getData() + ") to " + p);
}
label.generate(proj);
return ret;
}
public void render(java.awt.Graphics g) {
super.render(g);
label.render(g);
}
}