root / trunk / extensions / extSymbology / src / org / gvsig / symbology / fmap / labeling / placements / MarkerPlacementAroundPoint.java @ 26037
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1 | 24122 | vcaballero | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | package org.gvsig.symbology.fmap.labeling.placements; |
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42 | |||
43 | import java.awt.Rectangle; |
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44 | 24564 | vcaballero | import java.awt.geom.NoninvertibleTransformException; |
45 | 24122 | vcaballero | import java.util.ArrayList; |
46 | |||
47 | import org.gvsig.symbology.fmap.styles.PointLabelPositioneer; |
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48 | |||
49 | import com.iver.cit.gvsig.fmap.ViewPort; |
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50 | import com.iver.cit.gvsig.fmap.core.FPoint2D; |
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51 | import com.iver.cit.gvsig.fmap.core.FShape; |
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52 | import com.iver.cit.gvsig.fmap.core.IGeometry; |
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53 | 24564 | vcaballero | import com.iver.cit.gvsig.fmap.core.ShapeFactory; |
54 | 24122 | vcaballero | import com.iver.cit.gvsig.fmap.core.v02.FConverter; |
55 | import com.iver.cit.gvsig.fmap.rendering.styling.labeling.IPlacementConstraints; |
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56 | import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelClass; |
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57 | import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelLocationMetrics; |
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58 | import com.iver.utiles.swing.threads.Cancellable; |
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59 | |||
60 | public class MarkerPlacementAroundPoint implements ILabelPlacement { |
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61 | private static final MarkerCenteredAtPoint pos = new MarkerCenteredAtPoint(); |
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62 | |||
63 | public ArrayList<LabelLocationMetrics> guess(LabelClass lc, IGeometry geom, IPlacementConstraints placementConstraints, double cartographicSymbolSize, Cancellable cancel, ViewPort vp) { |
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64 | if (cancel.isCanceled()) return CannotPlaceLabel.NO_PLACES; |
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65 | |||
66 | FShape shp = FConverter.transformToInts(geom, vp.getAffineTransform()); |
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67 | |||
68 | if (placementConstraints instanceof PointPlacementConstraints) { |
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69 | PointPlacementConstraints ppc = (PointPlacementConstraints) placementConstraints; |
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70 | PointLabelPositioneer plp = ppc.getPositioneer(); |
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71 | |||
72 | if (plp != null) { |
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73 | FPoint2D p = (FPoint2D) shp; |
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74 | byte[] preferredPositions = plp.getPreferenceVector(); |
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75 | ArrayList<LabelLocationMetrics> highPreference = new ArrayList<LabelLocationMetrics>(); |
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76 | ArrayList<LabelLocationMetrics> normalPreference = new ArrayList<LabelLocationMetrics>(); |
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77 | ArrayList<LabelLocationMetrics> lowPreference = new ArrayList<LabelLocationMetrics>(); |
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78 | Rectangle bounds = lc.getBounds();
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79 | 26037 | vcaballero | double width = bounds.getWidth();// *.5 + 2; |
80 | 24122 | vcaballero | double heigth = bounds.getHeight();
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81 | |||
82 | double offsetX = 0, offsetY = 0; |
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83 | for (int i = 0; i < preferredPositions.length; i++) { |
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84 | 26037 | vcaballero | switch (i) {
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85 | 24122 | vcaballero | case 0: |
86 | 26037 | vcaballero | case 3: |
87 | case 5: |
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88 | 24122 | vcaballero | // left
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89 | offsetX = -width; |
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90 | break;
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91 | case 2: |
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92 | 26037 | vcaballero | case 4: |
93 | case 7: |
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94 | 24122 | vcaballero | // rigth
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95 | offsetX = width; |
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96 | break;
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97 | case 1: |
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98 | 26037 | vcaballero | case 6: |
99 | 24122 | vcaballero | default:
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100 | // horizontally centered
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101 | offsetX = 0;
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102 | break;
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103 | } |
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104 | 26037 | vcaballero | switch (i) {
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105 | 24122 | vcaballero | case 0: |
106 | 26037 | vcaballero | case 1: |
107 | case 2: |
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108 | 24122 | vcaballero | // top
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109 | offsetY = -heigth; |
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110 | break;
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111 | 26037 | vcaballero | case 5: |
112 | case 6: |
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113 | case 7: |
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114 | 24122 | vcaballero | // below
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115 | offsetY = heigth; |
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116 | break;
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117 | 26037 | vcaballero | case 3: |
118 | case 4: |
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119 | 24122 | vcaballero | default:
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120 | // vertically centered
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121 | offsetY = 0;
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122 | break;
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123 | |||
124 | } |
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125 | 26037 | vcaballero | // // xOffset
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126 | // switch (i % 3) {
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127 | // case 0:
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128 | // // left
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129 | // offsetX = -width;
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130 | // break;
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131 | // case 2:
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132 | // // rigth
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133 | // offsetX = width;
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134 | // break;
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135 | // case 1:
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136 | // default:
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137 | // // horizontally centered
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138 | // offsetX = 0;
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139 | // break;
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140 | //
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141 | // }
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142 | //
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143 | // switch (i / 3) {
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144 | // case 0:
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145 | // // top
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146 | // offsetY = -heigth;
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147 | // break;
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148 | // case 2:
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149 | // // below
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150 | // offsetY = heigth;
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151 | // break;
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152 | // case 1:
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153 | // default:
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154 | // // vertically centered
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155 | // offsetY = 0;
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156 | // break;
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157 | //
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158 | // }
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159 | 24122 | vcaballero | FPoint2D aux = new FPoint2D(p.getX() + offsetX, p.getY()+offsetY);
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160 | |||
161 | 24564 | vcaballero | IGeometry g=ShapeFactory.createPoint2D(aux); |
162 | try {
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163 | g.transform(vp.getAffineTransform().createInverse()); |
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164 | } catch (NoninvertibleTransformException e) { |
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165 | e.printStackTrace(); |
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166 | } |
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167 | 24122 | vcaballero | |
168 | switch (preferredPositions[i]) {
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169 | case PointLabelPositioneer.FORBIDDEN:
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170 | break;
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171 | case PointLabelPositioneer.PREFERENCE_HIGH:
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172 | highPreference.addAll( |
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173 | 24564 | vcaballero | pos.guess(lc, g, placementConstraints, cartographicSymbolSize, cancel,vp)); |
174 | 24122 | vcaballero | break;
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175 | case PointLabelPositioneer.PREFERENCE_NORMAL:
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176 | 24564 | vcaballero | |
177 | 24122 | vcaballero | normalPreference.addAll( |
178 | 24564 | vcaballero | pos.guess(lc, g, placementConstraints, cartographicSymbolSize, cancel,vp)); |
179 | 24122 | vcaballero | break;
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180 | case PointLabelPositioneer.PREFERENCE_LOW:
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181 | lowPreference.addAll( |
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182 | 24564 | vcaballero | pos.guess(lc, g, placementConstraints, cartographicSymbolSize, cancel,vp)); |
183 | 24122 | vcaballero | break;
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184 | |||
185 | default:
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186 | throw new Error("unrecognised label position preference value: "+preferredPositions[i]); |
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187 | } |
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188 | } |
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189 | |||
190 | ArrayList<LabelLocationMetrics> guessed = new ArrayList<LabelLocationMetrics>(); |
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191 | for (int j = 0; j < highPreference.size(); j++) guessed.add(highPreference.get(j)); |
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192 | for (int j = 0; j < normalPreference.size(); j++) guessed.add(normalPreference.get(j)); |
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193 | for (int j = 0; j < lowPreference.size(); j++) guessed.add(lowPreference.get(j)); |
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194 | return guessed;
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195 | } |
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196 | } |
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197 | |||
198 | return CannotPlaceLabel.NO_PLACES;
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199 | } |
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200 | |||
201 | |||
202 | |||
203 | public boolean isSuitableFor(IPlacementConstraints placementConstraints, |
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204 | int shapeType) {
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205 | if (shapeType == FShape.POINT || shapeType == FShape.MULTIPOINT) {// TODO (09/01/08) is this correct? if not fix it also in PlacementManager, PlacementProperties |
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206 | return placementConstraints.isAroundThePoint();
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207 | } |
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208 | return false; |
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209 | } |
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210 | |||
211 | |||
212 | |||
213 | } |