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**/ |
**/ |
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package skrueger.geotools; |
package skrueger.geotools; |
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import java.awt.Canvas; |
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import java.awt.Color; |
import java.awt.Color; |
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import java.awt.Dimension; |
import java.awt.Dimension; |
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import java.awt.FontMetrics; |
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import java.awt.Graphics; |
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import java.awt.Graphics2D; |
import java.awt.Graphics2D; |
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import java.awt.RenderingHints; |
import java.awt.RenderingHints; |
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import java.awt.image.BufferedImage; |
import java.awt.image.BufferedImage; |
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import java.awt.image.ImageObserver; |
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import java.util.ArrayList; |
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import java.util.List; |
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import javax.swing.tree.DefaultTreeCellRenderer; |
import javax.swing.tree.DefaultTreeCellRenderer; |
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import org.apache.log4j.Logger; |
import org.apache.log4j.Logger; |
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import org.geotools.factory.GeoTools; |
import org.geotools.factory.GeoTools; |
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import org.geotools.factory.Hints; |
import org.geotools.factory.Hints; |
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import org.geotools.feature.AttributeType; |
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import org.geotools.feature.Feature; |
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import org.geotools.feature.FeatureType; |
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import org.geotools.feature.IllegalAttributeException; |
import org.geotools.feature.IllegalAttributeException; |
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import org.geotools.geometry.jts.LiteShape2; |
import org.geotools.geometry.jts.LiteShape2; |
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import org.geotools.renderer.lite.StyledShapePainter; |
import org.geotools.renderer.lite.StyledShapePainter; |
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import org.geotools.styling.Symbolizer; |
import org.geotools.styling.Symbolizer; |
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import org.geotools.styling.TextSymbolizer; |
import org.geotools.styling.TextSymbolizer; |
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import org.geotools.util.NumberRange; |
import org.geotools.util.NumberRange; |
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import org.opengis.feature.simple.SimpleFeature; |
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import org.opengis.feature.simple.SimpleFeatureType; |
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import org.opengis.feature.type.AttributeDescriptor; |
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import schmitzm.geotools.feature.FeatureUtil; |
import schmitzm.geotools.feature.FeatureUtil; |
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* <br> |
* <br> |
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* <ul> |
* <ul> |
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* <li>07.02.2008:<br> |
* <li>07.02.2008:<br> |
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* Determining the default values of a {@link FeatureType} by |
* Determining the default values of a {@link SimpleFeatureType} by |
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* {@link FeatureUtil#getDefaultAttributeValues(FeatureType)} instead of using |
* {@link FeatureUtil#getDefaultAttributeValues(SimpleFeatureType)} instead of using |
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* {@link AttributeType#createDefaultValue()} directly, because the latter |
* {@link AttributeDescriptor#createDefaultValue()} directly, because the latter |
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* returns {@code null} even though the attribut is not nillable.</li> |
* returns {@code null} even though the attribut is not nillable.</li> |
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* </ul> |
* </ul> |
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* |
* |
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* @author Stefan Alfons Krüger |
* @author Stefan Alfons Krüger |
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*/ |
*/ |
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public class LegendIconFeatureRenderer extends DefaultTreeCellRenderer { |
public class LegendIconFeatureRenderer extends DefaultTreeCellRenderer { |
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private static final Dimension SIZE = new Dimension(30,20); |
// private static final Dimension SIZE = new Dimension(30,20); |
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Logger LOGGER = Logger.getLogger(LegendIconFeatureRenderer.class); |
Logger LOGGER = Logger.getLogger(LegendIconFeatureRenderer.class); |
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public static LegendIconFeatureRenderer getInstance() { |
public static LegendIconFeatureRenderer getInstance() { |
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// In GT 2.4.5 it we have to create a new one all the time! |
// In GT 2.4.5 it we have to create a new one all the time! |
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// TODO TEST, whether we still need to recreate the renderer here.... |
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// TODO TEST, whether we still need to recreate the renderer here.... |
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// TODO TEST, whether we still need to recreate the renderer here.... |
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// TODO TEST, whether we still need to recreate the renderer here.... |
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// TODO TEST, whether we still need to recreate the renderer here.... |
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// TODO TEST, whether we still need to recreate the renderer here.... |
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// TODO TEST, whether we still need to recreate the renderer here.... |
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// TODO TEST, whether we still need to recreate the renderer here.... |
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return new LegendIconFeatureRenderer(); |
return new LegendIconFeatureRenderer(); |
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// return instance; |
// return instance; |
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} |
} |
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/** The image produced at <code>produceLegendGraphic</code> */ |
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private BufferedImage legendGraphic; |
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/** |
/** |
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* used to create sample point shapes with LiteShape (not lines nor |
* used to create sample point shapes with LiteShape (not lines nor |
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* polygons) |
* polygons) |
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*/ |
*/ |
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private static final GeometryFactory geomFac = new GeometryFactory(); |
private static final GeometryFactory geomFac = FeatureUtil.GEOMETRY_FACTORY; |
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/** padding percentage factor at both sides of the legend. */ |
/** padding percentage factor at both sides of the legend. */ |
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private static final float hpaddingFactor = 0.11f; // was 0.15 |
private static final float hpaddingFactor = 0.11f; // was 0.15 |
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private static final float vpaddingFactor = 0.08f; // was 0.15 |
private static final float vpaddingFactor = 0.08f; // was 0.15 |
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/** |
/** |
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* Image observer to help in creating the stack like legend graphic from the |
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* images created for each rule |
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*/ |
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private static final ImageObserver imgObs = new Canvas(); |
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/** |
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* Just a holder to avoid creating many polygon shapes from inside |
* Just a holder to avoid creating many polygon shapes from inside |
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* <code>getSampleShape()</code> |
* <code>getSampleShape()</code> |
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*/ |
*/ |
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return sampleShape; |
return sampleShape; |
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} |
} |
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// |
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/** |
// /** |
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* Puts a BufferedImage into this.legendGraphic |
// * Puts a BufferedImage into this.legendGraphic |
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*/ |
// */ |
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public void produceLegendGraphic(FeatureType featureType, Style gt2Style, |
// public void produceLegendGraphic(SimpleFeatureType featureType, Style gt2Style, |
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Rule[] applicableRules) { |
// Rule[] applicableRules) { |
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// |
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// final FeatureTypeStyle[] ftStyles = gt2Style.getFeatureTypeStyles(); |
// // final FeatureTypeStyle[] ftStyles = gt2Style.getFeatureTypeStyles(); |
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// |
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// if (request.getRule() != null) { |
// // if (request.getRule() != null) { |
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// applicableRules = new Rule[] { request.getRule() }; |
// // applicableRules = new Rule[] { request.getRule() }; |
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// } else { |
// // } else { |
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// applicableRules = getApplicableRules(ftStyles, scaleDenominator); |
// // applicableRules = getApplicableRules(ftStyles, scaleDenominator); |
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// } |
// // } |
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// |
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final int ruleCount = applicableRules.length; |
// final int ruleCount = applicableRules.length; |
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// |
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/** |
// /** |
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* A legend graphic is produced for each applicable rule. They're being |
// * A legend graphic is produced for each applicable rule. They're being |
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* holded here until the process is done and then painted on a "stack" |
// * holded here until the process is done and then painted on a "stack" |
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* like legend. |
// * like legend. |
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*/ |
// */ |
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final List<BufferedImage> legendsStack = new ArrayList<BufferedImage>( |
// final List<BufferedImage> legendsStack = new ArrayList<BufferedImage>( |
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ruleCount); |
// ruleCount); |
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// |
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for (int i = 0; i < ruleCount; i++) { |
// for (int i = 0; i < ruleCount; i++) { |
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BufferedImage image = createImageForRule(applicableRules[i], |
// BufferedImage image = createImageForRule(applicableRules[i], |
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featureType, SIZE); |
// featureType, SIZE); |
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legendsStack.add(image); |
// legendsStack.add(image); |
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} |
// } |
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// |
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// this.legendGraphic = |
// // this.legendGraphic = |
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// scaleImage(mergeLegends(legendsStack,applicableRules), request); |
// // scaleImage(mergeLegends(legendsStack,applicableRules), request); |
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this.legendGraphic = mergeLegends(legendsStack, applicableRules); |
// this.legendGraphic = mergeLegends(legendsStack, applicableRules); |
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} |
// } |
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// |
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/** |
// /** |
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* Recieves a list of <code>BufferedImages</code> and produces a new one |
// * Recieves a list of <code>BufferedImages</code> and produces a new one |
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* which holds all the images in <code>imageStack</code> one above the |
// * which holds all the images in <code>imageStack</code> one above the |
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* other. |
// * other. |
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* |
// * |
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* @param imageStack |
// * @param imageStack |
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* the list of BufferedImages, one for each applicable Rule |
// * the list of BufferedImages, one for each applicable Rule |
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* @param rules |
// * @param rules |
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* The applicable rules, one for each image in the stack |
// * The applicable rules, one for each image in the stack |
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* @param request |
// * @param request |
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* The request. |
// * The request. |
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* |
// * |
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* @return the stack image with all the images on the argument list. |
// * @return the stack image with all the images on the argument list. |
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* |
// * |
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* @throws IllegalArgumentException |
// * @throws IllegalArgumentException |
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* if the list is empty |
// * if the list is empty |
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*/ |
// */ |
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private static BufferedImage mergeLegends(List<BufferedImage> imageStack, |
// private static BufferedImage mergeLegends(List<BufferedImage> imageStack, |
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Rule[] rules) { |
// Rule[] rules) { |
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if (imageStack.size() == 0) { |
// if (imageStack.size() == 0) { |
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throw new IllegalArgumentException("No legend graphics passed"); |
// throw new IllegalArgumentException("No legend graphics passed"); |
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} |
// } |
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// |
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BufferedImage finalLegend = null; |
// BufferedImage finalLegend = null; |
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// |
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if (imageStack.size() == 1) { |
// if (imageStack.size() == 1) { |
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finalLegend = (BufferedImage) imageStack.get(0); |
// finalLegend = (BufferedImage) imageStack.get(0); |
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} else { |
// } else { |
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final int imgCount = imageStack.size(); |
// final int imgCount = imageStack.size(); |
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final String[] labels = new String[imgCount]; |
// final String[] labels = new String[imgCount]; |
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// |
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BufferedImage img = ((BufferedImage) imageStack.get(0)); |
// BufferedImage img = ((BufferedImage) imageStack.get(0)); |
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FontMetrics fontMetrics = img.getGraphics().getFontMetrics(); |
// FontMetrics fontMetrics = img.getGraphics().getFontMetrics(); |
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// |
310 |
final int rowHeight = Math.max(fontMetrics.getHeight(), img |
// final int rowHeight = Math.max(fontMetrics.getHeight(), img |
311 |
.getHeight()); |
// .getHeight()); |
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// |
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// calculate the total dimensions of the image |
// // calculate the total dimensions of the image |
314 |
int totalHeight = rowHeight * imgCount; |
// int totalHeight = rowHeight * imgCount; |
315 |
int totalWidth = 0; |
// int totalWidth = 0; |
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|
// |
317 |
for (int i = 0; i < imgCount; i++) { |
// for (int i = 0; i < imgCount; i++) { |
318 |
img = (BufferedImage) imageStack.get(i); |
// img = (BufferedImage) imageStack.get(i); |
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// |
320 |
Rule rule = rules[i]; |
// Rule rule = rules[i]; |
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// |
322 |
// does this rule have a label |
// // does this rule have a label |
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labels[i] = rule.getTitle(); |
// labels[i] = rule.getTitle(); |
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// |
325 |
if (labels[i] == null) { |
// if (labels[i] == null) { |
326 |
labels[i] = rule.getName(); |
// labels[i] = rule.getName(); |
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} |
// } |
328 |
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// |
329 |
int w = img.getWidth(); |
// int w = img.getWidth(); |
330 |
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// |
331 |
if (labels[i] != null) { |
// if (labels[i] != null) { |
332 |
Graphics g = img.getGraphics(); |
// Graphics g = img.getGraphics(); |
333 |
w += g.getFontMetrics().stringWidth(labels[i]); |
// w += g.getFontMetrics().stringWidth(labels[i]); |
334 |
} |
// } |
335 |
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// |
336 |
totalWidth = Math.max(w, totalWidth); |
// totalWidth = Math.max(w, totalWidth); |
337 |
} |
// } |
338 |
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// |
339 |
// create the final image |
// // create the final image |
340 |
finalLegend = new BufferedImage(totalWidth, totalHeight, |
// finalLegend = new BufferedImage(totalWidth, totalHeight, |
341 |
BufferedImage.TYPE_INT_ARGB); |
// BufferedImage.TYPE_INT_ARGB); |
342 |
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// |
343 |
Graphics2D finalGraphics = finalLegend.createGraphics(); |
// Graphics2D finalGraphics = finalLegend.createGraphics(); |
344 |
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// |
345 |
finalGraphics.setColor(Color.white); |
// finalGraphics.setColor(Color.white); |
346 |
finalGraphics.fillRect(0, 0, totalWidth, totalHeight); |
// finalGraphics.fillRect(0, 0, totalWidth, totalHeight); |
347 |
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// |
348 |
int h = 0; |
// int h = 0; |
349 |
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// |
350 |
for (int i = 0; i < imgCount; i++) { |
// for (int i = 0; i < imgCount; i++) { |
351 |
img = (BufferedImage) imageStack.get(i); |
// img = (BufferedImage) imageStack.get(i); |
352 |
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// |
353 |
// draw the image |
// // draw the image |
354 |
int y = h; |
// int y = h; |
355 |
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// |
356 |
if (img.getHeight() < rowHeight) { |
// if (img.getHeight() < rowHeight) { |
357 |
// move the image to the center of the row |
// // move the image to the center of the row |
358 |
y += (int) ((rowHeight - img.getHeight()) / 2d); |
// y += (int) ((rowHeight - img.getHeight()) / 2d); |
359 |
} |
// } |
360 |
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// |
361 |
finalGraphics.drawImage(img, 0, y, imgObs); |
// finalGraphics.drawImage(img, 0, y, imgObs); |
362 |
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// |
363 |
// draw the label |
// // draw the label |
364 |
if (labels[i] != null) { |
// if (labels[i] != null) { |
365 |
finalGraphics.setColor(Color.BLACK); |
// finalGraphics.setColor(Color.BLACK); |
366 |
|
// |
367 |
y = (h + rowHeight) - fontMetrics.getDescent(); |
// y = (h + rowHeight) - fontMetrics.getDescent(); |
368 |
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// |
369 |
if (fontMetrics.getHeight() < rowHeight) { |
// if (fontMetrics.getHeight() < rowHeight) { |
370 |
// move the baseline to the center of the row |
// // move the baseline to the center of the row |
371 |
y -= (int) ((rowHeight - fontMetrics.getHeight()) / 2d); |
// y -= (int) ((rowHeight - fontMetrics.getHeight()) / 2d); |
372 |
} |
// } |
373 |
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// |
374 |
finalGraphics.drawString(labels[i], img.getWidth(), y); |
// finalGraphics.drawString(labels[i], img.getWidth(), y); |
375 |
} |
// } |
376 |
|
// |
377 |
h += rowHeight; |
// h += rowHeight; |
378 |
} |
// } |
379 |
} |
// } |
380 |
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// |
381 |
return finalLegend; |
// return finalLegend; |
382 |
} |
// } |
383 |
|
// |
384 |
/** |
// /** |
385 |
* DOCUMENT ME! |
// * DOCUMENT ME! |
386 |
* |
// * |
387 |
* @return |
// * @return |
388 |
* |
// * |
389 |
* @throws IllegalStateException |
// * @throws IllegalStateException |
390 |
* DOCUMENT ME! |
// * DOCUMENT ME! |
391 |
*/ |
// */ |
392 |
public BufferedImage getLegendGraphic() { |
// public BufferedImage getLegendGraphic() { |
393 |
if (this.legendGraphic == null) { |
// if (this.legendGraphic == null) { |
394 |
throw new IllegalStateException(); |
// throw new IllegalStateException(); |
395 |
} |
// } |
396 |
return this.legendGraphic; |
// return this.legendGraphic; |
397 |
} |
// } |
398 |
|
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399 |
// /** |
// /** |
400 |
// * Paints a little rectangle in the color defined by the |
// * Paints a little rectangle in the color defined by the |
442 |
|
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443 |
/** |
/** |
444 |
* Creates a little BufferedImage that presents the Style/Symbols used by |
* Creates a little BufferedImage that presents the Style/Symbols used by |
445 |
* the {@link MapLegend} to show a legend for the {@link FeatureType} |
* the {@link MapLegend} to show a legend for the {@link SimpleFeatureType} |
446 |
* |
* |
447 |
* @param rule |
* @param rule |
448 |
* {@link Rule} that provides the text and the style to present |
* {@link Rule} that provides the text and the style to present |
449 |
* @param featureType |
* @param featureType |
450 |
* Schema that describes the kind of the sample {@link Feature} |
* Schema that describes the kind of the sample {@link SimpleFeature} |
451 |
* that will be rendered with the {@link Style} |
* that will be rendered with the {@link Style} |
452 |
* @param bg |
* @param bg |
453 |
* Background {@link Color} or <code>null</code> |
* Background {@link Color} or <code>null</code> |
454 |
* |
* |
455 |
* @throws IllegalAttributeException |
* @throws IllegalAttributeException |
456 |
*/ |
*/ |
457 |
public BufferedImage createImageForRule(Rule rule, FeatureType featureType, |
public BufferedImage createImageForRule(Rule rule, SimpleFeatureType featureType, |
458 |
Dimension size, Color bg) { |
Dimension size, Color bg) { |
459 |
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460 |
Symbolizer[] symbolizers = rule.getSymbolizers(); |
Symbolizer[] symbolizers = rule.getSymbolizers(); |
478 |
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479 |
// TODO scaleDenominator = 100000000000000000000000000000d; Was ist das |
// TODO scaleDenominator = 100000000000000000000000000000d; Was ist das |
480 |
// fuer ein Quatsch? |
// fuer ein Quatsch? |
481 |
final double scaleDenominator = 100000000000000000000000000000d; |
final NumberRange<Integer> scaleRange = NumberRange.create(Integer.MAX_VALUE,Integer.MAX_VALUE); |
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final NumberRange scaleRange = new NumberRange(scaleDenominator, |
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scaleDenominator); |
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482 |
|
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483 |
try { |
try { |
484 |
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496 |
// RasterSymbolizers.."); |
// RasterSymbolizers.."); |
497 |
// } |
// } |
498 |
// else |
// else |
499 |
final Feature sampleFeature = FeatureUtil.createSampleFeature(featureType); |
final SimpleFeature sampleFeature = FeatureUtil.createSampleFeature(featureType); |
500 |
|
|
501 |
// The SLDStyleFactory has to be recreated, as it seams to cache |
// The SLDStyleFactory has to be recreated, as it seams to cache |
502 |
// some stuff. |
// some stuff. |
509 |
|
|
510 |
if (style2d != null) { |
if (style2d != null) { |
511 |
new StyledShapePainter(null).paint(graphics, shape, |
new StyledShapePainter(null).paint(graphics, shape, |
512 |
style2d, scaleDenominator); |
style2d, Integer.MAX_VALUE ); |
513 |
} |
} |
514 |
} |
} |
515 |
} catch (Exception e) { |
} catch (Exception e) { |
551 |
|
|
552 |
/** |
/** |
553 |
* Creates a little BufferedImage that presents the Style/Symbols used by |
* Creates a little BufferedImage that presents the Style/Symbols used by |
554 |
* the {@link MapLegend} to show a legend for the {@link FeatureType} |
* the {@link MapLegend} to show a legend for the {@link SimpleFeatureType} |
555 |
* |
* |
556 |
* @param rule |
* @param rule |
557 |
* {@link Rule} that provides the text and the style to present |
* {@link Rule} that provides the text and the style to present |
558 |
* @param featureType |
* @param featureType |
559 |
* Schema that describes the kind of the sample {@link Feature} |
* Schema that describes the kind of the sample {@link SimpleFeature} |
560 |
* that will be rendered with the {@link Style} |
* that will be rendered with the {@link Style} |
561 |
* |
* |
562 |
* @throws IllegalAttributeException |
* @throws IllegalAttributeException |
563 |
*/ |
*/ |
564 |
public BufferedImage createImageForRule(final Rule rule, |
public BufferedImage createImageForRule(final Rule rule, |
565 |
final FeatureType featureType, final Dimension size) { |
final SimpleFeatureType featureType, final Dimension size) { |
566 |
return createImageForRule(rule, featureType, size, null); |
return createImageForRule(rule, featureType, size, null); |
567 |
} |
} |
568 |
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