public void draw(
BufferedImage image, Graphics2D g, ViewPort viewPort, Cancellable cancel, double dpi)
throws ReadException {
double scale = viewPort.getScale();
// double fontScaleFactor = FConstant.FONT_HEIGHT_SCALE_FACTOR;
SimpleTextSymbol sym = new SimpleTextSymbol();
sym.setFont(getFont());
sym.setUnit(unit);
sym.setReferenceSystem(referenceSystem);
if (zoom == null
|| (zoom.isUserDefined()
&& (scale >= zoom.getMaxScale())
&& (scale <= zoom.getMinScale()))) {
FeatureSet set = null;
DisposableIterator iterator = null;
try {
// limit the labeling to the visible extent
ArrayList fields = new ArrayList();
int heightPos = -1;
int rotationPos = -1;
int textPos = -1;
int colorPos = -1;
int geomPos = -1;
if (!this.usesFixedSize()) {
if (getHeightField() != null) {
heightPos = fields.size();
fields.add(getHeightField());
}
}
if (getRotationField() != null) {
rotationPos = fields.size();
fields.add(getRotationField());
}
if (getTextField() != null) {
textPos = fields.size();
fields.add(getTextField());
}
if (!this.usesFixedColor() && getColorField() != null) {
colorPos = fields.size();
fields.add(getColorField());
}
FeatureStore featureStore = layer.getFeatureStore();
geomPos = fields.size();
String geomName = featureStore.getDefaultFeatureType().getDefaultGeometryAttributeName();
fields.add(geomName);
FeatureQuery featureQuery = featureStore.createFeatureQuery();
featureQuery.setAttributeNames((String[]) fields.toArray(new String[fields.size()]));
// TODO no set filter y layer is contained totaly in viewPort
ContainsEnvelopeEvaluator iee =
new ContainsEnvelopeEvaluator(
viewPort.getAdjustedExtent(),
viewPort.getProjection(),
featureStore.getDefaultFeatureType(),
geomName);
featureQuery.setFilter(iee);
set = featureStore.getFeatureSet(featureQuery);
// ReadableVectorial source = layer.getSource();
// SelectableDataSource recordSet = source.getRecordset();
iterator = set.fastIterator();
CreateLabelsOperationContext cloc = new CreateLabelsOperationContext();
cloc.setDublicates(true);
cloc.setPosition(0);
while (iterator.hasNext()) {
if (cancel.isCanceled()) {
return;
}
Feature feature = (Feature) iterator.next();
// for(int i=bs.nextSetBit(0); i>=0 && !cancel.isCanceled(); i=bs.nextSetBit(i+1)) {
// Value[] vv = recordSet.getRow(i);
double size;
Color color = null;
if (useFixedSize) {
// uses fixed size
size = fixedSize; // * fontScaleFactor;
// } else if (idHeightField != -1) {
} else if (heightFieldName != null) {
// text size is defined in the table
try {
// Object obj=feature.get(idHeightField);
Object obj = feature.get(heightPos);
if (obj != null) {
size = ((Number) obj).doubleValue(); // * fontScaleFactor;
} else {
size = 0;
}
} catch (ClassCastException ccEx) {
// if (!NullValue.class.equals(feature.get(idHeightField).getClass())) {
if (!NullValue.class.equals(feature.get(heightPos).getClass())) {
throw new ReadException("Unknown", ccEx);
}
// a null value
// Logger.getAnonymousLogger().
// warning("Null text height value for text
// '"+feature.get(idTextField).toString()+"'");
Logger.getAnonymousLogger()
.warning(
"Null text height value for text '" + feature.get(textPos).toString() + "'");
continue;
}
} else {
// otherwise will use the size in the symbol
size = sym.getFont().getSize();
}
size =
CartographicSupportToolkit.getCartographicLength(
this, size, viewPort, MapContext.getScreenDPI());
// dpi);
// toScreenUnitYAxis(this,
// size,
// viewPort
// );
if (size <= MIN_TEXT_SIZE) {
// label is too small to be readable, will be skipped
// this speeds up the rendering in wider zooms
continue;
}
sym.setFontSize(size);
if (useFixedColor) {
color = fixedColor;
// } else if (idColorField != -1) {
} else if (colorFieldName != null) {
// text size is defined in the table
try {
// color = new Color(feature.getInt(idColorField));
color = new Color(feature.getInt(colorPos));
} catch (ClassCastException ccEx) {
// if (feature.get(idColorField) != null) {
if (feature.get(colorPos) != null) {
throw new ReadException("Unknown", ccEx);
}
// a null value
// Logger.getAnonymousLogger().
// warning(
// "Null color value for text '"
// + feature.getString(idTextField)
// + "'");
Logger.getAnonymousLogger()
.warning("Null color value for text '" + feature.getString(textFieldName) + "'");
continue;
}
} else {
color = sym.getTextColor();
}
sym.setTextColor(color);
double rotation = 0D;
// if (idRotationField!= -1) {
if (rotationFieldName != null) {
// text rotation is defined in the table
// rotation = -Math.toRadians(((Number)
// feature.get(idRotationField)).doubleValue());
rotation = -Math.toRadians(((Number) feature.get(rotationPos)).doubleValue());
}
Geometry geom = feature.getDefaultGeometry();
// Object obj=feature.get(idTextField);
Object obj = feature.get(textPos);
if (obj != null) {
sym.setText(obj.toString());
}
sym.setRotation(rotation);
FLabel[] aux = (FLabel[]) geom.invokeOperation(CreateLabels.CODE, cloc);
// FLabel[] aux = geom.createLabels(0, true);
for (int j = 0; j < aux.length; j++) {
Point p =
geomManager.createPoint(
aux[j].getOrig().getX(), aux[j].getOrig().getY(), SUBTYPES.GEOM2D);
p.transform(viewPort.getAffineTransform());
if (properties == null) {
sym.draw(g, null, p, cancel);
} else {
sym.print(g, null, p, properties);
}
}
}
} catch (GeometryOperationNotSupportedException e) {
throw new ReadException("Could not draw annotation in the layer.", e);
} catch (GeometryOperationException e) {
throw new ReadException("Could not draw annotation in the layer.", e);
} catch (BaseException e) {
throw new ReadException("Could not draw annotation in the layer.", e);
} finally {
if (iterator != null) {
iterator.dispose();
}
if (set != null) {
set.dispose();
}
}
}
}
public Object getValue(Feature feature, String nameField) {
if (feature != null) return feature.get(nameField);
return null;
}