svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.plugin / org.gvsig.labeling.app / org.gvsig.labeling.app.mainplugin / src / main / java / org / gvsig / labeling / placements / LinePlacementAtBest.java @ 43510
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1 | 43510 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40911 | jldominguez | *
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4 | 43510 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | 40911 | jldominguez | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 43510 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40911 | jldominguez | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | 43510 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | 40911 | jldominguez | *
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21 | 43510 | jjdelcerro | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40911 | jldominguez | */
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24 | package org.gvsig.labeling.placements; |
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25 | |||
26 | import java.util.ArrayList; |
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27 | |||
28 | import org.gvsig.fmap.geom.Geometry; |
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29 | import org.gvsig.fmap.geom.Geometry.TYPES; |
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30 | import org.gvsig.fmap.geom.GeometryLocator; |
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31 | 43510 | jjdelcerro | import org.gvsig.fmap.geom.GeometryManager; |
32 | 40911 | jldominguez | import org.gvsig.fmap.mapcontext.ViewPort; |
33 | import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelClass; |
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34 | import org.gvsig.fmap.mapcontext.rendering.legend.styling.IPlacementConstraints; |
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35 | import org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling.LabelLocationMetrics; |
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36 | import org.gvsig.tools.task.Cancellable; |
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37 | import org.slf4j.Logger; |
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38 | import org.slf4j.LoggerFactory; |
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39 | |||
40 | public class LinePlacementAtBest extends CompoundLabelPlacement { |
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41 | |||
42 | private static Logger logger = LoggerFactory.getLogger(LinePlacementAtBest.class); |
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43 | static private ILabelPlacement[] pl = new ILabelPlacement[] { |
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44 | new LinePlacementInTheMiddle(),
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45 | new LinePlacementAtExtremities()
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46 | }; |
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47 | |||
48 | public LinePlacementAtBest() {
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49 | super(pl);
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50 | // a patch just to keep in mind the end of the lines
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51 | } |
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52 | |||
53 | |||
54 | public ArrayList<LabelLocationMetrics> guess(ILabelClass lc, |
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55 | Geometry geom, IPlacementConstraints constraints, |
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56 | double cartographicSymbolSize, Cancellable cancel, ViewPort vp) {
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57 | |||
58 | 43510 | jjdelcerro | if (cancel.isCanceled()) {
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59 | return CannotPlaceLabel.NO_PLACES;
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60 | } |
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61 | 40911 | jldominguez | |
62 | ArrayList<LabelLocationMetrics> llc = super.guess(lc, geom, constraints, cartographicSymbolSize, cancel,vp); |
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63 | if (constraints instanceof AbstractPlacementConstraints) { |
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64 | AbstractPlacementConstraints clone; |
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65 | try {
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66 | clone = (AbstractPlacementConstraints) ((AbstractPlacementConstraints) constraints).clone(); |
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67 | clone.setLocationAlongTheLine(IPlacementConstraints.AT_THE_END_OF_THE_LINE); |
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68 | llc.addAll(pl[1].guess(lc, geom, clone, cartographicSymbolSize, cancel,vp));
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69 | } catch (CloneNotSupportedException e) { |
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70 | // this should never happen but
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71 | // anyway a warning does not hurt anyone
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72 | logger.info("Couldn't clone "+constraints.getClass().getName(), e);
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73 | } |
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74 | |||
75 | } |
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76 | return llc;
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77 | } |
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78 | 43510 | jjdelcerro | @Override
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79 | 40911 | jldominguez | public boolean isSuitableFor( |
80 | IPlacementConstraints placementConstraints, |
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81 | int shapeType) {
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82 | |||
83 | 43510 | jjdelcerro | GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
84 | if( geomManager.isSubtype(TYPES.CURVE, shapeType) ||
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85 | geomManager.isSubtype(TYPES.MULTICURVE, shapeType) ) { |
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86 | 40911 | jldominguez | return placementConstraints != null && placementConstraints.isAtBestOfLine(); |
87 | } else {
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88 | return false; |
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89 | } |
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90 | } |
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91 | |||
92 | |||
93 | } |