Revision 19360 trunk/extensions/extSymbology/src/org/gvsig/symbology/fmap/labeling/GeneralLabelingStrategy.java
| GeneralLabelingStrategy.java | ||
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import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelClass; |
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import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelLocationMetrics; |
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import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelingFactory; |
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import com.iver.cit.gvsig.fmap.rendering.styling.labeling.RemoveDuplicatesComparator; |
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import com.iver.utiles.XMLEntity; |
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import com.iver.utiles.swing.threads.Cancellable; |
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private IPlacementConstraints placementConstraints; |
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private FLyrVect layer; |
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private IZoomConstraints zoomConstraints; |
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public void setLayer(FLayer layer) throws ReadDriverException {
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FLyrVect l = (FLyrVect) layer; |
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this.layer = l; |
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public void draw(BufferedImage mapImage, Graphics2D mapGraphics, ViewPort viewPort, |
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Cancellable cancel, double dpi) |
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throws ReadDriverException {
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TreeSet<?> placedLabels = null; |
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long t1 = System.currentTimeMillis(); |
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String[] usedFields = getUsedFields(); |
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int placedCount = 0; |
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ILabelPlacement placement = PlacementManager.getPlacement(getPlacementConstraints(), layer.getShapeType()); |
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/* handle the duplicates mode */ |
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int duplicateMode = getPlacementConstraints().getDuplicateLabelsMode(); |
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/* |
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* get an ordered set of the LabelClasses up on the |
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*/ |
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for (LabelClass lc : ts) {
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IFeatureIterator it = method.getFeatureIteratorByLabelClass(layer, lc, viewPort, usedFields); |
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// duplicates treatment stuff |
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if (duplicateMode == IPlacementConstraints.REMOVE_DUPLICATE_LABELS) {
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// we need to register the labels already placed |
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if (placedLabels == null) |
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placedLabels = new TreeSet<String[]>( |
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new RemoveDuplicatesComparator()); |
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else placedLabels.clear(); |
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} |
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// TODO if (duplicateMode == IPlacementConstraints.ONE_LABEL_PER_FEATURE) {
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// // we need to register the labels already placed |
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// if (placedLabels == null) placedLabels = new TreeSet(); |
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// else placedLabels.clear(); |
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// } |
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//duplicates stuff |
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boolean bLabelsReallocatable = true; |
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BufferedImage levelImg = null, |
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bi = new BufferedImage(mapImage.getWidth(),mapImage.getHeight(),BufferedImage.TYPE_INT_ARGB); |
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IFeature feat = it.next(); |
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IGeometry geom = feat.getGeometry(); |
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if (!setupLabel(feat, lc, cancel, usedFields, viewPort, dpi)) |
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if (!setupLabel(feat, lc, cancel, usedFields, viewPort, dpi, duplicateMode, placedLabels))
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continue; |
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// Check if size is a pixel |
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} |
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} |
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// Place a label |
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// Calculate the label possible places |
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ArrayList<LabelLocationMetrics> llm = placement.guess( |
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lc, |
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FConverter.transformToInts(geom, viewPort.getAffineTransform()), |
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logger.info("Labeled layer '"+layer.getName()+"' "+(System.currentTimeMillis()-t1)/1000D+" seconds. "+placedCount+"/"+total+" labels placed ("+NumberFormat.getInstance().format(100*placedCount/(double) total)+"%)");
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} |
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private boolean lookupAndPlaceLabel(BufferedImage[] bis, Graphics2D g, ArrayList<LabelLocationMetrics> llm, ILabelPlacement placement, LabelClass lc, IGeometry geom, ViewPort viewPort, Cancellable cancel, boolean bLabelsReallocatable) {
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int i; |
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for (i = 0; !cancel.isCanceled() && i < llm.size(); i++) {
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LabelLocationMetrics labelMetrics = llm.get(i); |
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return false; |
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} |
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private boolean setupLabel(IFeature feat, LabelClass lc, Cancellable cancel, String[] usedFields, ViewPort viewPort, double dpi) {
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if (true) {
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private boolean setupLabel(IFeature feat, LabelClass lc, |
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Cancellable cancel, String[] usedFields, ViewPort viewPort, |
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double dpi, int duplicateMode, TreeSet<?> placedLabels) {
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Value[] vv = feat.getAttributes(); |
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String expr = lc.getLabelExpression(); |
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LabelExpressionParser parser = new LabelExpressionParser( |
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String[] texts; |
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try {
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texts = parser.LabelExpression(); |
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if (duplicateMode == IPlacementConstraints.REMOVE_DUPLICATE_LABELS) {
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// check if this text (so label) is already present in the map |
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if (placedLabels.contains(texts)) |
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// the label has already placed before |
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return false; |
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/* |
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* the text is not present, it will be registered for next to |
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* be avoided |
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*/ |
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((TreeSet<String[]>) placedLabels).add(texts); |
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} |
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lc.setTexts(texts); |
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} catch (ParseException e) {
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e.printStackTrace(); |
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return false; |
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} |
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} else {
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lc.setTexts(new String[0]); |
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} |
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lc.toCartographicSize(viewPort, dpi, null); |
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return true; |
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