1 | var prevOverlays = [];
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2 | var presentOverlays = [];
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3 | var undoneOverlays = [];
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4 | var cycleComplete = true;
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5 |
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6 | function MapEditorHistory()
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7 | {
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8 | this.prevOverlays = [];
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9 | this.presentOverlays = [];
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10 | this.undoneOverlays = [];
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11 | this.cycleComplete = true;
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12 | }
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13 |
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14 | MapEditorHistory.prototype.undo = function(overlays) {
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15 | for (var i = 0; i < overlays.length; i++) {
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16 | overlays[i].setMap(null);
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17 | }
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18 | if (this.prevOverlays.length != 0) {
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19 | selectedShapes = [];
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20 | overlays = [];
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21 | this.undoneOverlaysPush();
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22 | let prev_overlay = this.prevOverlays.pop();
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23 |
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24 | if (prev_overlay.length > 0) {
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25 | for (var i = 0; i < prev_overlay.length; i++) {
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26 | overlays[i] = prev_overlay[i];
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27 | overlays[i].setMap(map);
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28 | overlays[i].draggable = draggableState;
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29 | }
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30 | }
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31 | }
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32 | };
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33 |
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34 |
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35 |
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36 | function undo() {
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37 |
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38 | for (var i = 0; i < overlays.length; i++) {
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39 | overlays[i].setMap(null);
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40 | }
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41 | if (prevOverlays.length != 0) {
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42 | selectedShapes = [];
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43 | overlays = [];
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44 | undoneOverlaysPush();
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45 | var prev_overlay = prevOverlays.pop();
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46 |
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47 | if (prev_overlay.length > 0) {
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48 | for (var i = 0; i < prev_overlay.length; i++) {
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49 | overlays[i] = prev_overlay[i];
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50 | overlays[i].setMap(map);
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51 | overlays[i].draggable = draggableState;
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52 | }
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53 | }
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54 | }
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55 | }
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56 |
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57 | function redo() {
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58 |
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59 | if (undoneOverlays.length != 0) {
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60 | selectedShapes = [];
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61 | for (var i = 0; i < overlays.length; i++) {
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62 | overlays[i].setMap(null);
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63 | }
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64 |
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65 | overlays = [];
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66 | var lastEntry = undoneOverlays[undoneOverlays.length - 1];
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67 | for (var i = 0; i < lastEntry.length; i++) {
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68 | overlays[i] = lastEntry[i];
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69 | overlays[i].setMap(map);
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70 | overlays[i].draggable = draggableState;
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71 | }
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72 |
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73 | var conditionPrevious = presentOverlays[0];
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74 | if (conditionPrevious !== undefined) {
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75 | if (conditionPrevious.length == 0) {
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76 | prevOverlays.push(presentOverlays[0]);
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77 | } else {
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78 | var overlays_copy = [];
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79 | for (var i = 0; i < presentOverlays[0].length; i++) {
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80 | var clone_shape = cloneShape(presentOverlays[0][i]);
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81 | if (overlayItemIsShape(clone_shape)) {
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82 | addShapeListeners(clone_shape, null);
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83 | } else {
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84 | addMarkerListeners(clone_shape, null);
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85 | }
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86 | overlays_copy[i] = clone_shape;
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87 | }
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88 | prevOverlays.push(overlays_copy);
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89 | }
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90 | }
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91 | presentOverlays = [];
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92 | presentOverlays.push(undoneOverlays[undoneOverlays.length - 1]);
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93 | undoneOverlays.pop();
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94 | }
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95 | }
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96 |
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97 | function clonePath(path) {
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98 | var clone_path = [];
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99 |
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100 | for (var i = 0; i < path.length; i++) {
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101 | var lati = path.getAt(i).lat();
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102 | var lngi = path.getAt(i).lng();
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103 | clone_lat_lng = {
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104 | lat: lati,
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105 | lng: lngi
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106 | };
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107 | clone_path.push(clone_lat_lng);
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108 | }
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109 |
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110 | return clone_path;
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111 | }
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112 |
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113 | function clonePolyline(polyline) {
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114 | var path = polyline.getPath();
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115 | var geodesic = polyline.geodesic;
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116 | var strokeColor = polyline.strokeColor;
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117 | var strokeOpacity = polyline.strokeOpacity;
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118 | var strokeWeight = polyline.strokeWeight;
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119 | var clone_path = clonePath(path);
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120 | //var editable = rect.editable;
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121 |
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122 | var clone_polyline = new google.maps.Polyline({
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123 | geodesic: geodesic,
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124 | strokeColor: strokeColor,
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125 | strokeOpacity: strokeOpacity,
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126 | strokeWeight: strokeWeight,
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127 | path: clone_path,
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128 | draggable: draggableState,
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129 | editable: false
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130 | });
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131 |
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132 | clone_polyline.type = google.maps.drawing.OverlayType.POLYLINE;
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133 |
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134 | return clone_polyline;
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135 | }
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136 |
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137 | function clonePolygon(polygon) {
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138 | var path = polygon.getPath();
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139 | var geodesic = polygon.geodesic;
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140 | var strokeColor = polygon.strokeColor;
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141 | var strokeOpacity = polygon.strokeOpacity;
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142 | var strokeWeight = polygon.strokeWeight;
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143 | var fillColor = polygon.fillColor;
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144 | var fillOpacity = polygon.fillOpacity;
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145 | var clone_path = clonePath(path);
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146 | //var editable = rect.editable;
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147 |
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148 | var clone_polygon = new google.maps.Polygon({
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149 | geodesic: geodesic,
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150 | strokeColor: strokeColor,
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151 | strokeOpacity: strokeOpacity,
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152 | strokeWeight: strokeWeight,
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153 | fillColor: fillColor,
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154 | fillOpacity: fillOpacity,
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155 | path: clone_path,
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156 | draggable: draggableState,
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157 | editable: false
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158 | });
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159 |
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160 | clone_polygon.type = google.maps.drawing.OverlayType.POLYGON;
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161 |
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162 | return clone_polygon;
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163 | }
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164 |
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165 | function cloneRectangle(rect) {
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166 | var strokeColor = rect.strokeColor;
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167 | var strokeOpacity = rect.strokeOpacity;
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168 | var strokeWeight = rect.strokeWeight;
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169 | var fillColor = rect.fillColor;
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170 | var fillOpacity = rect.fillOpacity;
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171 | var bounds = rect.getBounds();
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172 | var type = rect.type;
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173 | //var editable = rect.editable;
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174 |
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175 | var clone_rect = new google.maps.Rectangle({
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176 | strokeColor: strokeColor,
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177 | strokeOpacity: strokeOpacity,
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178 | strokeWeight: strokeWeight,
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179 | fillColor: fillColor,
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180 | fillOpacity: fillOpacity,
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181 | bounds: bounds,
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182 | draggable: draggableState,
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183 | editable: false,
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184 | type: type
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185 | });
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186 |
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187 | clone_rect.type = google.maps.drawing.OverlayType.RECTANGLE;
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188 |
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189 | return clone_rect;
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190 | }
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191 |
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192 | function cloneCircle(circ) {
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193 | var strokeColor = circ.strokeColor;
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194 | var strokeOpacity = circ.strokeOpacity;
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195 | var strokeWeight = circ.strokeWeight;
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196 | var fillColor = circ.fillColor;
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197 | var fillOpacity = circ.fillOpacity;
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198 | var center = circ.center;
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199 | var radius = circ.radius;
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200 | //var editable = rect.editable;
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201 |
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202 | var clone_circ = new google.maps.Circle({
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203 | strokeColor: strokeColor,
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204 | strokeOpacity: strokeOpacity,
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205 | strokeWeight: strokeWeight,
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206 | fillColor: fillColor,
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207 | fillOpacity: fillOpacity,
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208 | center: center,
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209 | radius: radius,
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210 | draggable: draggableState,
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211 | editable: false
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212 | });
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213 |
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214 | clone_circ.type = google.maps.drawing.OverlayType.CIRCLE;
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215 |
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216 | return clone_circ;
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217 | }
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218 |
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219 | function cloneMarker(marker) {
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220 | var position = marker.getPosition();
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221 | var anchorPoint = marker.anchorPoint;
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222 | var clone_marker = new google.maps.Marker({
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223 | anchorPoint: anchorPoint,
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224 | position: position,
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225 | clickable: true,
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226 | draggable: draggableState,
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227 | editable: false
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228 | })
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229 | clone_marker.type = google.maps.drawing.OverlayType.MARKER;
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230 |
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231 | return clone_marker;
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232 | }
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233 |
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234 | function cloneShape(shape) {
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235 | if (shape.type === google.maps.drawing.OverlayType.POLYLINE) {
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236 | var clone_polyline = clonePolyline(shape);
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237 | return clone_polyline;
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238 | } else if (shape.type === google.maps.drawing.OverlayType.POLYGON) {
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239 | var clone_polygon = clonePolygon(shape);
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240 | return clone_polygon;
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241 | } else if (shape.type === google.maps.drawing.OverlayType.RECTANGLE) {
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242 | var clone_rect = cloneRectangle(shape);
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243 | return clone_rect;
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244 |
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245 | } else if (shape.type === google.maps.drawing.OverlayType.CIRCLE) {
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246 | var clone_circ = cloneCircle(shape);
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247 | return clone_circ;
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248 |
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249 | } else {
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250 | var clone_marker = cloneMarker(shape);
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251 | return clone_marker;
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252 | }
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253 | }
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254 |
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255 | function overlayItemIsShape(overlay_item) {
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256 | var type = overlay_item.type;
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257 |
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258 | is_shape = (type === google.maps.drawing.OverlayType.POLYLINE)
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259 | || (type === google.maps.drawing.OverlayType.POLYGON)
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260 | || (type === google.maps.drawing.OverlayType.RECTANGLE)
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261 | || (type === google.maps.drawing.OverlayType.CIRCLE);
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262 |
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263 | return is_shape;
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264 | }
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265 |
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266 | function historyOverlayPush() {
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267 | if (cycleComplete) {
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268 | var overlays_copy = [];
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269 | for (var i = 0; i < overlays.length; i++) {
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270 | var clone_shape = cloneShape(overlays[i]);
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271 |
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272 | if (overlayItemIsShape(clone_shape)) {
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273 | addShapeListeners(clone_shape, null); // don't have an overlay event!
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274 | } else {
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275 | addMarkerListeners(clone_shape, null); // don't have an overlay event!
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276 | }
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277 | overlays_copy[i] = clone_shape;
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278 | }
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279 | undoneOverlays = [];
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280 | prevOverlays.push(overlays_copy);
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281 | }
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282 |
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283 | cycleComplete = false;
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284 | }
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285 | function presentOverlayPush() {
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286 |
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287 | OVbeforeClearing = overlays;
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288 | PObeforeClearing = presentOverlays;
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289 | presentOverlays = [];
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290 | var overlays_copy = [];
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291 | for (var i = 0; i < overlays.length; i++) {
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292 | var clone_shape = cloneShape(overlays[i]);
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293 | if (overlayItemIsShape(clone_shape)) {
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294 | addShapeListeners(clone_shape, null); // don't have an overlay event!
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295 | } else {
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296 | addMarkerListeners(clone_shape, null); // don't have an overlay event!
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297 | }
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298 | overlays_copy[i] = clone_shape;
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299 | }
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300 | presentOverlays.push(overlays_copy);
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301 | cycleComplete = true;
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302 |
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303 | }
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304 |
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305 | function undoneOverlaysPush() {
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306 |
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307 | var conditionUndone = presentOverlays[presentOverlays.length - 1] !== undefined;
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308 |
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309 | if (conditionUndone) {
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310 | var overlays_copy = [];
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311 | for (var i = 0; i < presentOverlays[0].length; i++) {
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312 | var clone_shape = cloneShape(presentOverlays[0][i]);
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313 | if (overlayItemIsShape(clone_shape)) {
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314 | addShapeListeners(clone_shape, null); // don't have an overlay event!
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315 | } else {
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316 | addMarkerListeners(clone_shape, null); // don't have an overlay event!
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317 | }
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318 | overlays_copy[i] = clone_shape;
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319 | }
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320 | undoneOverlays.push(overlays_copy);
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321 | }
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322 |
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323 | var conditionPresent = prevOverlays[prevOverlays.length - 1] !== undefined;
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324 |
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325 | if (conditionPresent) {
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326 | presentOverlays = [];
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327 | var overlays_copy = [];
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328 | for (var i = 0; i < prevOverlays[prevOverlays.length - 1].length; i++) {
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329 | var clone_shape = cloneShape(prevOverlays[prevOverlays.length - 1][i]);
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330 | if (overlayItemIsShape(clone_shape)) {
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331 | addShapeListeners(clone_shape, null); // don't have an overlay event!
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332 | } else {
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333 | addMarkerListeners(clone_shape, null); // don't have an overlay event!
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334 | }
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335 | overlays_copy[i] = clone_shape;
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336 | }
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337 | presentOverlays.push(overlays_copy);
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338 | }
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339 | }
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340 |
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341 |
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342 | MapEditorHistory.prototype.undoneOverlaysPush = function() {
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343 |
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344 | var conditionUndone = this.presentOverlays[this.presentOverlays.length - 1] !== undefined;
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345 |
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346 | if (conditionUndone) {
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347 | var overlays_copy = [];
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348 | for (var i = 0; i < this.presentOverlays[0].length; i++) {
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349 | var clone_shape = cloneShape(this.presentOverlays[0][i]);
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350 | if (overlayItemIsShape(clone_shape)) {
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351 | addShapeListeners(clone_shape, null); // don't have an overlay event!
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352 | } else {
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353 | addMarkerListeners(clone_shape, null); // don't have an overlay event!
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354 | }
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355 | overlays_copy[i] = clone_shape;
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356 | }
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357 | this.undoneOverlays.push(overlays_copy);
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358 | }
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359 |
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360 | var conditionPresent = this.prevOverlays[this.prevOverlays.length - 1] !== undefined;
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361 |
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362 | if (conditionPresent) {
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363 | this.presentOverlays = [];
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364 | var overlays_copy = [];
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365 | for (var i = 0; i < this.prevOverlays[this.prevOverlays.length - 1].length; i++) {
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366 | var clone_shape = cloneShape(this.prevOverlays[this.prevOverlays.length - 1][i]);
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367 | if (overlayItemIsShape(clone_shape)) {
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368 | addShapeListeners(clone_shape, null); // don't have an overlay event!
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369 | } else {
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370 | addMarkerListeners(clone_shape, null); // don't have an overlay event!
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371 | }
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372 | overlays_copy[i] = clone_shape;
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373 | }
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374 | this.presentOverlays.push(overlays_copy);
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375 | }
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376 | }
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377 |
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