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1 package de.mpg.mpiwg.itgroup.digilib.digiImage;
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3 import java.util.ArrayList;
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4 import java.util.HashMap;
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5 import java.util.List;
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6 import java.util.Map;
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7
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8 import org.apache.commons.lang.StringUtils;
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9 import org.eclipse.jface.viewers.ISelection;
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10 import org.eclipse.jface.viewers.ISelectionChangedListener;
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11 import org.eclipse.jface.viewers.ISelectionProvider;
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12 import org.eclipse.jface.viewers.SelectionChangedEvent;
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13 import org.eclipse.jface.viewers.StructuredSelection;
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14 import org.eclipse.swt.graphics.Point;
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15
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16
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17 /** Contains methods to manipulate an digilib image @see {#link de.mpiwg.itgroup.digilib.digiImage.Digimage}.
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18 * The parameters are documented at the digilib pages @see {@link http://developer.berlios.de/docman/display_doc.php?docid=106&group_id=251}.
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19 *
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20 */
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21
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22 public class DigiImageController{
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23
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24 public static String VMIR="vmir"; // vertical mirroring
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25 public static String HMIR="hmir"; // horizontal mirroring
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26
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27 public DigiImage digiImage; // the image to be controlled.
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28 //private DigiImageParameter parameter;
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29
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30
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31 protected DigiImageController(){}
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32
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33 /** Create a new controller on the image object.
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34 *
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35 * @param di
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36 */
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37 public DigiImageController(DigiImage di){
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38 this.digiImage=di;
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39 }
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40
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41
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42
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43 /** Mirrors the image
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44 * @param modes can be @see {@value #VMIR} or {@link #HMIR}.
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45 */
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46 public void mir(String mode) {
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47
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48 DigiImageParameter dp = digiImage.getParameter();
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49
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50 String parameter = dp.getMo();
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51
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52
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53 // mo kann mehrere durch komma getrennte parameter haben
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54 String[] splittmo= parameter.split(",");
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55 Boolean hasMir = false;
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56 List<String> newmo = new ArrayList<String>();
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57 for(String m: splittmo){
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58 if (m.equals(mode)){
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59 hasMir=true;
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60 } else {
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61 newmo.add(m);
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62 }
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63 }
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64 if(!hasMir){ // kein hmir dann dazufuegen
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65 newmo.add(mode);
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66 }
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67 String newmoString = StringUtils.join(newmo,",");
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68
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69 dp.setMo(newmoString);
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70
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71
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72 digiImage.setParameter(dp);
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73 digiImage.redraw();
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74 }
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75
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76
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77 public void vmir() {
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78 mir(VMIR);
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79
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80 }
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81
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82 public void hmir() {
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83 mir(HMIR);
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84
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85 }
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86
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87 public void rotate(float rotateValue) {
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88 digiImage.getParameter().setRot(rotateValue);
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89 digiImage.redraw();
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90 }
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91
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92
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93
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94
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95 /** Zoom the area given by the rectangle (x,y), (x2,y2). Alle point are given in absolute coordinates.
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96 * @param x
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97 * @param y
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98 * @param x2
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99 * @param y2
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100 */
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101 public void zoomArea(int x, int y, int x2, int y2) {
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102
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103 Point size = digiImage.getLabel().getSize();
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104
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105 float relx = new Float(x)/new Float(size.x);
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106 float rely = new Float(y)/new Float(size.y);
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107
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108 float relx2 = new Float(x2)/new Float(size.x);
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109 float rely2 = new Float(y2)/new Float(size.y);
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110
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111 DigiImageParameter dp = digiImage.getParameter();
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112
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113 float Ww = dp.getWw();
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114 float Wh = dp.getWh();
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115
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116 float Wx = dp.getWx();
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117 float Wy = dp.getWy();
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118
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119
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120 float nWx = relx*Ww+Wx;
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121 float nWy = rely*Wh+Wy;
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122
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123 float nWw = (relx2-relx)*Ww;
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124 float nWh = (rely2-rely)*Wh;
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125
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126
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127
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128 dp.setWx(nWx);
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129 dp.setWy(nWy);
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130 dp.setWw(nWw);
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131 dp.setWh(nWh);
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132 digiImage.setParameter(dp);
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133 digiImage.redraw();
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134
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135
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136 // setRot(rotateValue);
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137 }
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138
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139 /**
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140 * Show the whole image.
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141 *
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142 */
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143 public void zoomFull(){
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144 DigiImageParameter dp = digiImage.getParameter();
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145 dp.setWw(1);
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146 dp.setWh(1);
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147
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148 dp.setWx(0);
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149 dp.setWy(0);
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150
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151 digiImage.setParameter(dp);
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152 digiImage.redraw();
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153 }
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154
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155 /**
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156 * scales the image down (ws --> ws-1)
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157 *
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158 */
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159 public void scaleDown() {
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160 DigiImageParameter dp = digiImage.getParameter();
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161 float ws = dp.getWs();
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162 if (ws>1){
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163 dp.setWs(ws-1);
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164 digiImage.setParameter(dp);
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165 digiImage.redraw();
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166
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167 }
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168
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169 }
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170
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171 /**
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172 * scales the image up (ws --> ws+1)
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173 *
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174 */
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175 public void scaleUp() {
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176 DigiImageParameter dp = digiImage.getParameter();
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177 float ws = dp.getWs();
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178
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179 dp.setWs(ws+1);
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180 digiImage.setParameter(dp);
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181 digiImage.redraw();
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182
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183
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184
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185
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186 }
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187
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188 /**
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189 * If the image object points to a folder the previous image in the folder is displayed.
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190 *
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191 */
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192 public void prevPage() {
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193 DigiImageParameter dp = digiImage.getParameter();
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194 int pn = dp.getPn();
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195 if (pn>1)
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196 pn=pn-1;
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197 dp.setPn(pn);
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198 digiImage.setParameter(dp);
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199 digiImage.redraw();
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200
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201 }
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202
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203 /**
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204 * If the image object points to a folder the next image in the folder is displayed.
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205 * TODO currently no check is made if we are already on the last image in the folder.
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206 */
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207 public void nextPage() {
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208 DigiImageParameter dp = digiImage.getParameter();
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209 int pn = dp.getPn();
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210
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211 pn=pn+1;
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212 dp.setPn(pn);
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213 digiImage.setParameter(dp);
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214 digiImage.redraw();
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215
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216
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217 }
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222 }
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