1 | var debug = false;
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2 | var redoPressed = false;
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3 | var undoPressed = 0;
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4 | var shiftKeyPressed = false;
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5 | var dragFired = false;
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6 | var selectionPass = true;
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7 | var chosen;
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8 | var enableSelectionFeature = false;
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9 | var beingDragged = false;
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10 | var presentOverlays = [];
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11 |
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12 |
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13 | var deselectedLog = []
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14 | var selectedShapesLog = [];
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15 | var prevShape = [];
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16 | var nextShape = [];
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17 | var prevLog = [];
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18 | var nextLog = [];
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19 | var dragged = 0;
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20 | var colors = ['#1E90FF', '#FF1493', '#4B0082', '#32CD32', '#FF8C00', '#000000'];
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21 | var selectedColor;
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22 | var colorButtons = {};
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23 | var thicknessValue = 1;
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24 | var opacityValue = 0.4;
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25 | var polyOptions = {
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26 | fillColor: '#CA4A2F',
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27 | strokeWeight: thicknessValue,
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28 | fillOpacity: opacityValue,
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29 | editable: true,
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30 | draggable: true,
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31 | geodesic: false,
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32 | };
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33 |
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34 | var overlays = [];
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35 | var drawingManager;
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36 | var selectedShape;
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37 | var selectedShapes = [];
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38 |
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39 | var map = null;
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40 |
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41 |
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42 |
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43 | $(document).ready(function() {
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44 | //Update thickness
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45 | var thicknessSlider = document.getElementById("thicknessRange");
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46 | var thicknessSliderOutput = document.getElementById("thicknessRangeVal");
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47 | thicknessSliderOutput.innerHTML = thicknessSlider.value / 20;
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48 |
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49 | thicknessSlider.oninput = function () {
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50 | thicknessSliderOutput.innerHTML = this.value / 20;
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51 | thicknessValue = this.value / 20;
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52 | polyOptions.strokeWeight = thicknessValue;
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53 | setSelectedThickness(thicknessValue);
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54 | }
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55 | //Update opacity
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56 | var opacitySlider = document.getElementById("colourOpacity");
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57 | var opacitySliderOutput = document.getElementById("opacityRangeVal");
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58 | opacitySliderOutput.innerHTML = "% " + Math.round(opacitySlider.value);
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59 |
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60 | opacitySlider.oninput = function () {
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61 | opacityValue = this.value / 100;
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62 | polyOptions.fillOpacity = opacityValue;
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63 | opacitySliderOutput = opacityValue;
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64 | opacityRangeVal.innerHTML = "% " + Math.round(opacitySliderOutput * 100);
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65 | setSelectedOpacity(opacityValue);
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66 | }
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67 |
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68 | document.getElementById("thicknessRange").addEventListener("mousedown", shapeSpecsChangeMD);
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69 | document.getElementById("colourOpacity").addEventListener("mousedown", shapeSpecsChangeMD);
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70 | document.getElementById("color-palette1").addEventListener("mousedown", shapeSpecsChangeMD);
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71 |
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72 | document.getElementById("thicknessRange").addEventListener("mouseup", shapeSpecsChangeMU);
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73 | document.getElementById("colourOpacity").addEventListener("mouseup", shapeSpecsChangeMU);
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74 | document.getElementById("color-palette1").addEventListener("mouseup", shapeSpecsChangeMU);
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75 | });
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76 |
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77 | function shapeSpecsChangeMD() {
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78 | if (selectedShapes.length > 0) {
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79 | historyOverlayPush();
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80 |
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81 | }
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82 | }
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83 |
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84 | function shapeSpecsChangeMU() {
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85 | if (selectedShapes.length > 0) {
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86 | presentOverlayPush();
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87 | }
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88 | }
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89 |
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90 | function makeColorButton(color) {
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91 | var button = document.createElement('span');
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92 | button.className = 'color-buttons1';
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93 | button.style.backgroundColor = color;
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94 | google.maps.event.addDomListener(button, 'click', function () {
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95 | selectColor(color);
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96 | setSelectedShapeColor(color);
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97 | });
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98 | return button;
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99 | }
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100 | function buildColorPalette() {
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101 | var colorPalette = document.getElementById('color-palette1');
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102 | for (var i = 0; i < colors.length; ++i) {
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103 | var currColor = colors[i];
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104 | var colorButton = makeColorButton(currColor);
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105 | colorPalette.appendChild(colorButton);
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106 | colorButtons[currColor] = colorButton;
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107 | }
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108 | selectColor(colors[0]);
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109 | };
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110 | function selectColor(color) {
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111 | selectedColor = color;
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112 | for (var i = 0; i < colors.length; ++i) {
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113 | var currColor = colors[i];
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114 | colorButtons[currColor].style.border = currColor == color ? '2px solid #789' : '2px solid #fff';
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115 | }
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116 |
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117 | // Retrieves the current options from the drawing manager and replaces the
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118 | // stroke or fill color as appropriate.
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119 | var polylineOptions = drawingManager.get('polylineOptions');
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120 | polylineOptions.strokeColor = color;
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121 | drawingManager.set('polylineOptions', polylineOptions);
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122 |
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123 | var rectangleOptions = drawingManager.get('rectangleOptions');
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124 | rectangleOptions.fillColor = color;
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125 | drawingManager.set('rectangleOptions', rectangleOptions);
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126 |
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127 | var circleOptions = drawingManager.get('circleOptions');
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128 | circleOptions.fillColor = color;
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129 | drawingManager.set('circleOptions', circleOptions);
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130 |
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131 | var polygonOptions = drawingManager.get('polygonOptions');
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132 | polygonOptions.fillColor = color;
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133 | drawingManager.set('polygonOptions', polygonOptions);
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134 | }
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135 |
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136 | function initMap() {
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137 |
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138 | map = new google.maps.Map(document.getElementById('map'), {
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139 | center: {
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140 | lat: -34.397,
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141 | lng: 150.644
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142 | },
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143 | zoom: 2,
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144 | //mapTypeId: 'map'
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145 |
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146 | });
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147 |
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148 | drawingManager = new google.maps.drawing.DrawingManager({
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149 | drawingMode: google.maps.drawing.OverlayType.RECTANGLE,
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150 | drawingControl: true,
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151 | drawingControlOptions: {
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152 | position: google.maps.ControlPosition.TOP_CENTER,
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153 | drawingModes: ['marker', 'circle', 'polygon', 'polyline', 'rectangle']
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154 | },
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155 | markerOptions: {
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156 | draggable: true
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157 | },
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158 | circleOptions: polyOptions,
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159 | polylineOptions: polyOptions,
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160 | polygonOptions: polyOptions,
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161 | rectangleOptions: polyOptions,
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162 | });
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163 |
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164 | drawingManager.setMap(map);
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165 |
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166 | //overlays.push(event.overlay); // store reference to added overlay
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167 | google.maps.event.addListener(drawingManager, 'overlaycomplete', function (e) {
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168 |
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169 | historyOverlayPush();
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170 |
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171 | overlays.push(e.overlay); // store reference to added overlay
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172 | var newShape = e.overlay;
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173 | newShape.type = e.type;
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174 |
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175 | //historyOverlayPush();
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176 |
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177 | if (e.type !== google.maps.drawing.OverlayType.MARKER) {
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178 | addShapeListeners(newShape,e);
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179 | setSelection(newShape, e);
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180 | } else {
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181 |
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182 | addMarkerListeners(newShape,e);
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183 | setSelection(newShape, e);
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184 | }
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185 | });
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186 |
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187 | //Clears selection if clicked on the map when shift is not presseed
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188 | google.maps.event.addListener(map, 'click', function () {
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189 | if (shiftKeyPressed == false) {
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190 | clearSelection();
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191 | if (chosen !== null) {
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192 | deselectedLog.push("deselected")
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193 | deselectedLog = [];
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194 | chosen = null;
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195 | selectedShape = null;
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196 |
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197 | }
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198 | }
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199 | });
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200 |
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201 | //Setting drawing tool option
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202 | document.addEventListener('keydown', function () {
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203 | //if (event.code == 'KeyX' && (event.ctrlKey || event.metaKey))
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204 | if (event.code == 'Digit0' || event.code == 'Numpad0' || event.code == 'Backquote') {
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205 | //clearSelection();
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206 | drawingManager.setDrawingMode(null);
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207 | } else if (event.code == 'Digit1') {
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208 | drawingManager.setDrawingMode('marker');
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209 | } else if (event.code == 'Digit2') {
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210 | drawingManager.setDrawingMode('circle');
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211 | } else if (event.code == 'Digit3') {
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212 | drawingManager.setDrawingMode('polygon');
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213 | } else if (event.code == 'Digit4') {
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214 | drawingManager.setDrawingMode('polyline');
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215 | } else if (event.code == 'Digit5') {
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216 | drawingManager.setDrawingMode('rectangle');
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217 | } else if (event.code == 'KeyQ') {
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218 | printHistory();
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219 | }
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220 | // console.log(event.code);
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221 | });
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222 |
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223 | //Sets shift as pressed
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224 | document.addEventListener('keydown', function () {
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225 | if (event.code == 'ShiftLeft' || event.code == 'ShiftRight') {
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226 | shiftKeyPressed = true;
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227 |
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228 | }
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229 |
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230 | });
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231 |
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232 | //Sets shift as unpressed
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233 | document.addEventListener('keyup', function () {
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234 | if (event.code == 'ShiftLeft' || event.code == 'ShiftRight') {
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235 | shiftKeyPressed = false;
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236 | }
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237 |
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238 | });
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239 |
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240 | buildColorPalette();
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241 | }
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242 |
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243 | //Deletes a vertex if clicked on it
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244 | function vertexAndPolyDel(e, newShape) {
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245 | var vertex = e.vertex;
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246 | //console.log(e)
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247 | if (e.vertex !== undefined) {
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248 | historyOverlayPush();
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249 | if (newShape.type === google.maps.drawing.OverlayType.POLYGON) {
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250 | var path = newShape.getPaths().getAt(e.path);
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251 | path.removeAt(e.vertex);
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252 | if (path.length < 3) {
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253 | newShape.setMap(null);
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254 | }
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255 | }
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256 | if (newShape.type === google.maps.drawing.OverlayType.POLYLINE) {
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257 | var path = newShape.getPath();
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258 | path.removeAt(e.vertex);
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259 | if (path.length < 2) {
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260 | newShape.setMap(null);
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261 | }
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262 | }
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263 | }
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264 | }
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265 |
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266 | function addMarkerListeners(newShape,e)
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267 | {
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268 | //cLICK EVENT IF A MARKER IS CREATED
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269 | google.maps.event.addListener(newShape, 'click', function (e) {
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270 | console.log("lol");
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271 | setSelection(newShape, e);
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272 | });
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273 | }
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274 | function addShapeListeners(newShape,e)
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275 | {
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276 | // Switch back to non-drawing mode after drawing a shape.
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277 | //drawingManager.setDrawingMode(null);
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278 |
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279 | // Add an event listener that selects the newly-drawn shape when the user
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280 | // mouses down on it.
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281 | google.maps.event.addListener(newShape, 'click', function (e) {
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282 | vertexAndPolyDel(e, newShape);
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283 | console.log(e);
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284 | });
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285 |
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286 | google.maps.event.addListener(newShape, 'dragstart', function (e) {
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287 | beingDragged = true;
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288 | historyOverlayPush();
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289 |
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290 | });
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291 |
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292 | google.maps.event.addListener(newShape, 'dragend', function () {
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293 | beingDragged = false;
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294 | });
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295 |
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296 | //Store information after the event ends
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297 | google.maps.event.addListener(newShape, 'bounds_changed', function (e) {
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298 | //console.log(e);
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299 |
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300 | if (beingDragged == false){
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301 | resizeEntry = true;
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302 | presentOverlayPush();
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303 | resizeEntry = false;
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304 | }
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305 | });
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306 |
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307 | google.maps.event.addListener(newShape, 'resize', function () {
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308 | //historyOverlayPush();
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309 |
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310 | });
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311 |
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312 | //Add an event listener to select a shape if the mouse hovers over it
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313 | google.maps.event.addListener(newShape, 'mousedown', function (e) {
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314 | // console.log(e);
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315 | if (drawingManager.drawingMode == null) {
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316 | setSelection(newShape, e);
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317 | }
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318 | });
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319 | }
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320 | function clearSelection() {
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321 | if (selectedShape) {
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322 | if (selectedShape.type !== 'marker') {
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323 | selectedShape.setEditable(false);
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324 | if (shiftKeyPressed == false) {
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325 | for (var i = 0; i < selectedShapes.length; i++) {
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326 | selectedShapes[i].setEditable(false);
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327 | }
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328 | selectedShapes = [];
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329 | }
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330 | }
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331 | selectedShape = null;
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332 | }
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333 | }
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334 |
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335 | //Set selection for the selected overlay
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336 | function setSelection(shape, e) {
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337 | if (shape.type !== 'marker') {
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338 | if (shiftKeyPressed == false) {
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339 | if (e.vertex == undefined) {
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340 | //if ((shape.type != google.maps.drawing.OverlayType.POLYLINE)
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341 | //&& (shape.type != google.maps.drawing.OverlayType.POLYGON)) {
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342 | clearSelection();
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343 | shape.setEditable(true);
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344 | }
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345 | }
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346 | if (selectedShapes.includes(shape)) {
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347 |
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348 | //shape.setEditable(false);
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349 | const index = selectedShapes.indexOf(shape);
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350 | selectedShapes.splice(index, 1);
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351 | } else {
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352 | shape.setEditable(true);
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353 | selectedShapes.push(shape);
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354 | }
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355 |
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356 | if (debug) {
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357 | console.log(" len = " + selectedShapes.length);
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358 | }
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359 | //Send the values to be updated
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360 | var thi = shape.strokeWeight;
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361 | var opa = shape.fillOpacity;
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362 | var fCol = shape.fillColor;
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363 | var sCol = shape.strokeColor;
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364 | updateMenuValues(thi, opa, fCol, sCol);
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365 |
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366 | } else if (shape.type == 'marker') {
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367 | clearSelection();
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368 | }
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369 |
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370 | selectedShape = shape;
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371 |
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372 | if (selectionPass == true) {
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373 |
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374 | selectedShapesLog.push("selected", shiftKeyPressed, selectedShape);
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375 | nextLog.push(selectedShapesLog);
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376 | chosen = selectedShape;
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377 | selectionPass = false
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378 | }
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379 |
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380 | var lastItem = nextLog[nextLog.length - 1];
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381 |
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382 | if (chosen !== selectedShape) {
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383 | if (dragFired == false) {
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384 | selectedShapesLog.push("selected", shiftKeyPressed, selectedShape)
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385 | chosen = selectedShape;
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386 | }
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387 | }
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388 |
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389 | //console.log(prevLog);
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390 | selectedShapesLog = [];
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391 | }
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392 |
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393 | //Set selected thickness
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394 | function setSelectedThickness(sWeight) {
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395 | if (selectedShapes.length > 0) {
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396 | //historyOverlayPush();
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397 | for (var i = 0; i < selectedShapes.length; i++) {
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398 | selectedShapes[i].set('strokeWeight', sWeight);
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399 | //console.log(selectedShapes.length);
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400 | }
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401 | }
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402 | }
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403 |
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404 | //Set selected opacity
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405 | function setSelectedOpacity(fOpacity) {
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406 |
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407 | if (selectedShapes.length > 0) {
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408 | for (var i = 0; i < selectedShapes.length; i++) {
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409 | selectedShapes[i].set('fillOpacity', fOpacity);
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410 | }
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411 | }
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412 | }
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413 |
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414 | //set selected fill colour
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415 | function setSelectedShapeColor(color) {
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416 | if (selectedShapes.length > 0) {
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417 | for (var i = 0; i < selectedShapes.length; i++) {
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418 | selectedShapes[i].set('fillColor', color);
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419 | selectedShapes[i].set('strokeColor', color);
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420 | }
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421 | }
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422 | }
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423 |
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424 | function updateMenuValues(thi, opa, fCol, sCol) {
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425 |
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426 | //Update thickness slider and value on the settings menu
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427 | var thicknessSliderOutput = document.getElementById("thicknessRangeVal");
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428 | thicknessSliderOutput.innerHTML = thi;
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429 | document.getElementById("thicknessRange").value = thi * 20;
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430 |
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431 | //Update the opacity slider and value on the settings menu
|
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432 | var opacitySliderOutput = document.getElementById("opacityRangeVal");
|
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433 | opacitySliderOutput.innerHTML = "% " + opa * 100;
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434 | document.getElementById("colourOpacity").value = opa * 100;
|
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435 |
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436 | if (drawingManager.drawingMode == null) {
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437 | selectColor(fCol);
|
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438 | }
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439 | }
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440 |
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441 | function redoMovement() {
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442 |
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443 | var lastItem = nextLog[nextLog.length - 1];
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444 | var secondToLastItem = nextLog[nextLog.length - 2];
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445 | var correctIndex;
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446 |
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447 | if (undoPressed >= 1) {
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448 | correctIndex = lastItem;
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449 | } else {
|
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450 | correctIndex = secondToLastItem;
|
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451 | undoPressed++;
|
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452 | }
|
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453 |
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454 | //If the history log is not empty
|
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455 | if (nextLog.length > 1) {
|
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456 | prevLog.push(lastItem);
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457 |
|
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458 | //If undo has been pressed
|
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459 |
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460 | if (lastItem[1] == ("polygon") || lastItem[1] == ("polyline")) {
|
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461 | selectedShape.setPath(correctIndex[2]);
|
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462 | } else {
|
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463 | selectedShape.setBounds(correctIndex[2]);
|
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464 | }
|
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465 |
|
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466 | undoPressed = false;
|
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467 | redoPressed = true;
|
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468 | nextLog.pop();
|
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469 | }
|
---|
470 | }
|
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471 |
|
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472 | function printHistory() {
|
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473 |
|
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474 | console.log(prevOverlays);
|
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475 | console.log(presentOverlays);
|
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476 | //console.log(selectedShapes);
|
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477 | //console.log(overlays);
|
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478 | }
|
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479 |
|
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480 | function deleteSelectedShape() {
|
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481 | for (var i = 0; i < selectedShapes.length; i++) {
|
---|
482 | selectedShapes[i].setMap(null);
|
---|
483 | }
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484 | selectedShapes = [];
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485 | }
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486 |
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487 | function deleteAllShape() {
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488 | for (var i = 0; i < overlays.length; i++) {
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489 | overlays[i].setMap(null);
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490 |
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491 | }
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492 | overlays = [];
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493 | }
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494 |
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