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annotate client/src/components/Pdftool.vue @ 1947:4235fa8f59d7

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clien: pdf-gen: load logo externally; add prepare step * Change the way how the logo to be placed in the pdf is loaded: It can be configured in the `.env.local´ file, otherwise a placeholder will be loaded from the static assets. The placeholder has not been placed in `assets` because it won't be needed if a real logo has been specified and thus should not compiled in by default. * Add a mechanism to do asynchronous preparations before rendering. This is needed for the completeion of the Image() loading, but it also shows how asynchronous preparational step can be added in principle. * Disable the start button when the current rendering is in progress.
author Bernhard Reiter <bernhard@intevation.de>
date Tue, 22 Jan 2019 10:01:08 +0100
parents 17b6d2a6fb76
children b275d5e14087
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1 <template>
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2 <div
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3 :class="[
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4 'box ui-element rounded bg-white text-nowrap',
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5 { expanded: showPdfTool }
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6 ]"
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7 >
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8 <div style="width: 20rem">
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9 <h6 class="mb-0 py-2 px-3 border-bottom d-flex align-items-center">
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10 <font-awesome-icon icon="file-pdf" class="mr-2"></font-awesome-icon>
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11 <translate>Generate PDF</translate>
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12 <font-awesome-icon
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13 icon="times"
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14 class="ml-auto text-muted"
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15 @click="$store.commit('application/showPdfTool', false)"
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16 ></font-awesome-icon>
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17 </h6>
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18 <div class="p-3">
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19 <b><translate>Choose format:</translate></b>
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20 <select v-model="form.format" class="form-control d-block w-100">
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21 <option value="landscape"><translate>landscape</translate></option>
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22 <option value="portrait"><translate>portrait</translate></option>
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23 </select>
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24 <select v-model="form.resolution" class="form-control d-block w-100">
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25 <option value="80">80 dpi</option>
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26 <option value="120">120 dpi</option>
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27 <option value="200">200 dpi</option>
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28 </select>
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29 <select v-model="form.paperSize" class="form-control d-block w-100">
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30 <option value="a3"><translate>ISO A3</translate></option>
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31 <option value="a4"><translate>ISO A4</translate></option>
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32 </select>
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33 <!--
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34 <small class="d-block my-2">
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35 <input
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36 type="radio"
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37 id="pdfexport-downloadtype-download"
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38 value="download"
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39 v-model="form.downloadType"
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40 selected
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41 />
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42 <label for="pdfexport-downloadtype-download" class="ml-1 mr-2">
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43 <translate>Download</translate>
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44 </label>
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46 type="radio"
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47 id="pdfexport-downloadtype-open"
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48 value="open"
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49 v-model="form.downloadType"
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50 />
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51 <label for="pdfexport-downloadtype-open" class="ml-1">
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52 <translate>Open in new window</translate>
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53 </label>
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54 </small>
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55 -->
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56 <button
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57 @click="download"
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58 type="button"
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59 v-bind:disabled="!readyToGenerate"
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60 class="btn btn-sm btn-info d-block w-100"
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61 >
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62 <translate>Generate PDF</translate>
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63 </button>
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64 </div>
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65 </div>
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66 </div>
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67 </template>
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68
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69 <script>
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70 /* This is Free Software under GNU Affero General Public License v >= 3.0
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71 * without warranty, see README.md and license for details.
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72 *
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73 * SPDX-License-Identifier: AGPL-3.0-or-later
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74 * License-Filename: LICENSES/AGPL-3.0.txt
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75 *
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76 * Copyright (C) 2018, 2019 by via donau
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77 * – Österreichische Wasserstraßen-Gesellschaft mbH
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78 * Software engineering by Intevation GmbH
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79 *
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80 * Author(s):
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81 * * Markus Kottländer <markus.kottlaender@intevation.de>
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82 * * Bernhard E. Reiter <bernhard@intevation.de>
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83 * * Fadi Abbud <fadi.abbud@intevation.de>
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84 */
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85 import { mapGetters, mapState } from "vuex";
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86 import jsPDF from "jspdf";
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87 import { getPointResolution } from "ol/proj.js";
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88 import locale2 from "locale2";
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89
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90 var paperSizes = {
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91 // in millimeter, landscape [width, height]
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92 a3: [420, 297],
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93 a4: [297, 210]
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94 };
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95
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96 export default {
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97 name: "pdftool",
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98 data() {
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99 return {
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100 form: {
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101 format: "landscape",
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102 paperSize: "a4",
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103 downloadType: "download",
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104 resolution: "120"
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105 },
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106 logoImageForPDF: null, // a HTMLImageElement instance
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107 readyToGenerate: true // if the user is allowed to press the button
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108 };
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109 },
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110 computed: {
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111 ...mapState("application", ["showPdfTool", "logoForPDF"]),
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112 ...mapState("bottlenecks", ["selectedSurvey"]),
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113 ...mapState("map", ["openLayersMap", "isolinesLegendImgDataURL"]),
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114 ...mapGetters("map", ["getLayerByName"]),
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115 ...mapState("user", ["user"])
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116 },
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117 methods: {
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118 download() {
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119 // disable button while working on it
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120 this.readyToGenerate = false;
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121
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122 console.log(
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123 "will generate pdf with",
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124 this.form.paperSize,
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125 this.form.format,
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126 this.form.resolution
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127 );
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128 var width, height;
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129
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130 if (this.form.format !== "portrait") {
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131 // landscape, default
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132 width = paperSizes[this.form.paperSize][0];
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133 height = paperSizes[this.form.paperSize][1];
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134 } else {
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135 // switch width and height
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136 width = paperSizes[this.form.paperSize][1];
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137 height = paperSizes[this.form.paperSize][0];
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138 }
1874
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139
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140 // FUTURE: consider margins
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141
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142 // dots per mm = dots per inch / (25.4 mm/inch)
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143 var pixelsPerMapMillimeter = this.form.resolution / 25.4;
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144 var mapSizeForPrint = [
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145 // in pixel
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parents: 1883
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146 Math.round(width * pixelsPerMapMillimeter),
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147 Math.round(height * pixelsPerMapMillimeter)
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148 ];
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149
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150 // generate PDF and open it
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151 // our units are milimeters; width 0 x height 0 is left upper corner
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152
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153 // Step 1 prepare and save current map extend
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154 // Then add callback "rendercomplete" for Step 3
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parents: 1882
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155 // which will generate the pdf and resets the map view
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156 // Step 2 which starts rendering a map with the necessary image size
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157
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158 var map = this.openLayersMap;
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159 var mapSize = map.getSize(); // size in pixels of the map in the DOM
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160 // Calculate the extent for the current view state and the passed size.
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161 // The size is the pixel dimensions of the box into which the calculated
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162 // extent should fit.
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163 var mapExtent = map.getView().calculateExtent(mapSize);
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164
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165 var pdf = new jsPDF(this.form.format, "mm", this.form.paperSize);
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166 var northarrowSize = 3;
1883
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167 var self = this;
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168
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169 // set a callback for after the next complete rendering of the map
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170 map.once("rendercomplete", function(event) {
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171 let canvas = event.context.canvas;
1887
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172
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173 // because we are using Web Mercator, a pixel represents
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174 // a differently sizes spot depending on the place of the map.
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175 // So we use a value calculated from the center of the current view.
1884
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176 let view = map.getView();
1887
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177 let proj = view.getProjection();
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178 let metersPerPixel = // average meters (reality) per pixel (map)
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parents: 1886
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179 getPointResolution(proj, view.getResolution(), view.getCenter()) *
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180 proj.getMetersPerUnit();
1897
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diff changeset
181 // DEBUG console.log("metersPerPixel = ", metersPerPixel);
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182
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183 let scaleNominator = Math.round(
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184 // the x in 1:x map scale
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185 1000 * pixelsPerMapMillimeter * metersPerPixel
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186 );
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187 console.log("scaleNominator = ", scaleNominator);
1884
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188
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189 var data = canvas.toDataURL("image/jpeg");
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190 pdf.addImage(data, "JPEG", 0, 0, width, height);
1933
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191 self.addScaleBar(pdf, width, height, scaleNominator);
1903
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192 self.addNorthArrow(pdf, 15, 9, northarrowSize);
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193 self.addPageInfo(pdf);
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194 self.addAboutBox(pdf, width, height);
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195
1931
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196 if (self.getLayerByName("Bottleneck isolines").isVisible) {
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parents: 1928
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197 self.addLegend(pdf, width, height);
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198 }
1928
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199
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200 pdf.save("map.pdf");
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201 // reset to original size
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202 map.setSize(mapSize);
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203 map.getView().fit(mapExtent, { size: mapSize });
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204
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205 // as we are done: re-enable button
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206 self.readyToGenerate = true;
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207 });
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208
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209 // trigger rendering
1947
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210 this.prepareRendering(function() {
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211 map.setSize(mapSizeForPrint);
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212 map.getView().fit(mapExtent, { size: mapSizeForPrint });
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213
1947
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diff changeset
214 /*
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215 let a = document.createElement("a");
1947
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216 a.href = src; // need the generated PDF in here (as dataURL?)
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217
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218 if (this.form.downloadType === "download")
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219 a.download = src.substr(src.lastIndexOf("/") + 1);
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parents:
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220 else a.target = "_blank";
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parents:
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221
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222 document.body.appendChild(a);
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223 a.click();
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224 document.body.removeChild(a);
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225 */
1947
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diff changeset
226 });
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diff changeset
227 },
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diff changeset
228 prepareRendering(callback) {
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229 // call callback() once the preparations are done
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230 this.logoImageForPDF = new Image();
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231
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diff changeset
232 this.logoImageForPDF.onload = function() {
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233 callback();
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234 };
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235
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diff changeset
236 if (this.logoForPDF) {
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237 this.logoImageForPDF.src = this.logoForPDF;
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parents: 1936
diff changeset
238 } else {
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diff changeset
239 this.logoImageForPDF.src = "/img/gemma-logo-for-pdf.png";
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parents: 1936
diff changeset
240 }
1876
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parents: 1874
diff changeset
241 },
1883
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parents: 1882
diff changeset
242 addRoundedBox(doc, x, y, w, h) {
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parents: 1882
diff changeset
243 // draws a rounded background box at (x,y) width x height
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parents: 1882
diff changeset
244 // using jsPDF units
1876
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parents: 1874
diff changeset
245 doc.setDrawColor(255, 255, 255);
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parents: 1874
diff changeset
246 doc.setFillColor(255, 255, 255);
1883
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parents: 1882
diff changeset
247 doc.roundedRect(x, y, w, h, 3, 3, "FD");
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parents: 1882
diff changeset
248 },
1933
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parents: 1931
diff changeset
249 addScaleBar(doc, docWidth, docHeight, scaleNominator) {
1897
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parents: 1887
diff changeset
250 // scaleNominator is the x in 1:x of the map scale
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parents: 1887
diff changeset
251
1933
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parents: 1931
diff changeset
252 // hardcode maximal width for now and place in lower right corner
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parents: 1931
diff changeset
253 let maxWidth = 80; // in mm
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parents: 1931
diff changeset
254
1897
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parents: 1887
diff changeset
255 // reduce width until we'll find a nice number for printing
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parents: 1887
diff changeset
256 // strategy:
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parents: 1887
diff changeset
257 // 1. check which unit prefix we shall use to get [10:10000[
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parents: 1887
diff changeset
258 // 2. using a mapping for the leading digit to get [1:10[
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parents: 1887
diff changeset
259 // 3. select a smaller number which is nicely dividable
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parents: 1887
diff changeset
260 // 4. scale up again to get length in paper mm and to be shown
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parents: 1887
diff changeset
261
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parents: 1887
diff changeset
262 // from https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log10#Polyfill
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parents: 1887
diff changeset
263 let log10 =
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parents: 1887
diff changeset
264 Math.log10 || // more precise, but unsupported by IE
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parents: 1887
diff changeset
265 function(x) {
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parents: 1887
diff changeset
266 return Math.log(x) * Math.LOG10E;
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parents: 1887
diff changeset
267 };
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parents: 1887
diff changeset
268
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parents: 1887
diff changeset
269 let maxLength = maxWidth * scaleNominator;
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diff changeset
270
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parents: 1887
diff changeset
271 let unit = "mm";
1914
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parents: 1903
diff changeset
272 let unitConversionFactor = 1;
3d2b55d2d8a6 client: pdf-gen: fix scale bar calculation
Bernhard Reiter <bernhard@intevation.de>
parents: 1903
diff changeset
273 if (maxLength >= 1e7) {
3d2b55d2d8a6 client: pdf-gen: fix scale bar calculation
Bernhard Reiter <bernhard@intevation.de>
parents: 1903
diff changeset
274 // >= 10 km
1897
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
275 unit = "km";
1914
3d2b55d2d8a6 client: pdf-gen: fix scale bar calculation
Bernhard Reiter <bernhard@intevation.de>
parents: 1903
diff changeset
276 unitConversionFactor = 1e6;
3d2b55d2d8a6 client: pdf-gen: fix scale bar calculation
Bernhard Reiter <bernhard@intevation.de>
parents: 1903
diff changeset
277 } else if (maxLength >= 1e4) {
3d2b55d2d8a6 client: pdf-gen: fix scale bar calculation
Bernhard Reiter <bernhard@intevation.de>
parents: 1903
diff changeset
278 // >= 10 m
1897
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
279 unit = "m";
1914
3d2b55d2d8a6 client: pdf-gen: fix scale bar calculation
Bernhard Reiter <bernhard@intevation.de>
parents: 1903
diff changeset
280 unitConversionFactor = 1e3;
1897
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
281 }
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
282
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
283 maxLength /= unitConversionFactor;
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
284
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
285 // DEBUG console.log(maxLength, unit);
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
286 let unroundedLength = maxLength;
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
287 let numberOfDigits = Math.floor(log10(unroundedLength));
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
288 let factor = Math.pow(10, numberOfDigits);
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
289 let mapped = unroundedLength / factor;
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
290 // DEBUG console.log(mapped);
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
291
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
292 var length = Math.floor(maxLength); // just to have an upper limit
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
293
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
294 // manually only use numbers that are very nice to devide by 4
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
295 // note that this is taken into account for rounding later
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
296 if (mapped > 8) {
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
297 length = 8 * factor;
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
298 } else if (mapped > 4) {
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
299 length = 4 * factor;
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
300 } else if (mapped > 2) {
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
301 length = 2 * factor;
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
302 } else {
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
303 length = factor;
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
304 }
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
305
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
306 let size = (length * unitConversionFactor) / scaleNominator / 4;
1933
1aa2921d8832 client: pdf-gen: make scalebar box size dynamic
Bernhard Reiter <bernhard@intevation.de>
parents: 1931
diff changeset
307
1aa2921d8832 client: pdf-gen: make scalebar box size dynamic
Bernhard Reiter <bernhard@intevation.de>
parents: 1931
diff changeset
308 let x = docWidth - (size * 4 + 8);
1aa2921d8832 client: pdf-gen: make scalebar box size dynamic
Bernhard Reiter <bernhard@intevation.de>
parents: 1931
diff changeset
309 let y = docHeight - 6;
1aa2921d8832 client: pdf-gen: make scalebar box size dynamic
Bernhard Reiter <bernhard@intevation.de>
parents: 1931
diff changeset
310
1936
17b6d2a6fb76 client: pdf-gen (minor) fix formatto
Bernhard Reiter <bernhard@intevation.de>
parents: 1933
diff changeset
311 this.addRoundedBox(doc, x - 4, y - 4, size * 4 + 12, 10);
1897
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
312
1876
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
313 doc.setDrawColor(0, 0, 0);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
314 doc.setFillColor(0, 0, 0);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
315 doc.rect(x, y, size, 1, "FD");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
316 doc.setFillColor(255, 255, 255);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
317 doc.setDrawColor(0, 0, 0);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
318 doc.rect(x + size, y, size, 1, "FD");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
319 doc.setFillColor(0, 0, 0);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
320 doc.setDrawColor(0, 0, 0);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
321 doc.rect(x + size * 2, y, size * 2, 1, "FD");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
322 doc.setFontSize(5);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
323 doc.text(x, y + 3, "0");
1897
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
324 // /4 and could give 2.5. We still round, because of floating point arith
1884
59ef76d83de7 client: pdf-gen: make scalebar dynamic
Bernhard Reiter <bernhard@intevation.de>
parents: 1883
diff changeset
325 doc.text(
1897
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
326 x + size,
1884
59ef76d83de7 client: pdf-gen: make scalebar dynamic
Bernhard Reiter <bernhard@intevation.de>
parents: 1883
diff changeset
327 y + 3,
1897
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
328 (Math.round((length * 10) / 4) / 10).toString()
1884
59ef76d83de7 client: pdf-gen: make scalebar dynamic
Bernhard Reiter <bernhard@intevation.de>
parents: 1883
diff changeset
329 );
1897
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
330 doc.text(x + size * 2, y + 3, Math.round(length / 2).toString());
c78efb1ddb02 client: pdf-gen: improve scalebar to show nice values
Bernhard Reiter <bernhard@intevation.de>
parents: 1887
diff changeset
331 doc.text(x + size * 4, y + 3, Math.round(length).toString() + " " + unit);
1876
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
332 },
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
333
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
334 addNorthArrow(doc, x1, y1, size) {
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
335 var y2 = y1 + size * 3;
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
336 var x3 = x1 - size * 2;
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
337 var y3 = y1 + size * 5;
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
338 var x4 = x1 + size * 2;
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
339 //white triangle
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
340 doc.setFillColor(255, 255, 255);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
341 doc.setDrawColor(255, 255, 255);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
342 doc.triangle(x3 - 0.8, y3 + 1.2, x1, y1 - 1.2, x1, y2 + 0.6, "F");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
343 doc.triangle(x1, y1 - 1.2, x1, y2 + 0.6, x4 + 0.8, y3 + 1.2, "F");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
344 //north arrow
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
345 doc.setDrawColor(0, 0, 0);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
346 doc.setFillColor(255, 255, 255);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
347 doc.triangle(x3, y3, x1, y1, x1, y2, "FD");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
348 doc.setFillColor(0, 0, 0);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
349 doc.triangle(x1, y1, x1, y2, x4, y3, "FD");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
350 doc.setFontSize(size * 3.1);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
351 doc.setTextColor(255, 255, 255);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
352 doc.setFontStyle("bold");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
353 doc.text(size < 3 ? x1 - 0.5 : x1 - 1.3, y3 + 1, "N");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
354 doc.setFontSize(size * 3);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
355 doc.setTextColor(0, 0, 0);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
356 doc.setFontStyle("normal");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
357 doc.text(size < 3 ? x1 - 0.5 : x1 - 1.3, y3 + 1, "N");
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
358 },
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
359 // add some text at specific coordinates and determine how many wrolds in single line
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
360 addText(doc, postitionX, positionY, size, color, lineWidth, text) {
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
361 // split the incoming string to an array, each element is a string of words in a single line
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
362 var textLines = doc.splitTextToSize(text, lineWidth);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
363 // get the longest line to fit the white backround to it
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
364 var longestString = "";
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
365 textLines.forEach(function(element) {
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
366 if (element.length > longestString.length) longestString = element;
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
367 });
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
368 var indexOfMaxString = textLines.indexOf(longestString);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
369 // white background (rectangular) around the text
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
370 doc.setFillColor(255, 255, 255);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
371 doc.setDrawColor(255, 255, 255);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
372 doc.rect(
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
373 postitionX - doc.getStringUnitWidth(textLines[indexOfMaxString]) / size,
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
374 size > 10 ? positionY - size / 1.8 : positionY - size / 2.4,
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
375 doc.getStringUnitWidth(textLines[indexOfMaxString]) * (size / 2.6),
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
376 textLines.length * (size / 2),
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
377 "FD"
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
378 );
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
379 //rounded rectangular
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
380 /* doc.roundedRect(
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
381 postitionX - doc.getStringUnitWidth(textLines[indexOfMaxString]) / size,
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
382 size > 10 ? positionY - size / 1.8 : positionY - size / 2.6,
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
383 doc.getStringUnitWidth(textLines[indexOfMaxString]) * (size / 2.6),
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
384 textLines.length * (size / 2),
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
385 3,
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
386 3,
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
387 "FD"
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
388 ); */
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
389 doc.setTextColor(color);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
390 doc.setFontSize(size);
e53924abb4a2 client: export some elements to pdf
Fadi Abbud <fadi.abbud@intevation.de>
parents: 1874
diff changeset
391 doc.text(postitionX, positionY, textLines);
1903
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
392 },
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
393 addPageInfo(doc) {
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
394 this.addRoundedBox(doc, 0, 0, 110, 8);
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
395 let str =
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
396 this.$gettext("Date of publication:") +
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
397 " " +
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
398 new Date().toLocaleString(locale2) +
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
399 " " +
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
400 this.$gettext("– printed by:") +
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
401 " " +
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
402 this.user;
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
403 this.addText(doc, 5, 5, 9, "black", 100, str);
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
404 },
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
405 addAboutBox(doc, docWidth, docHeight) {
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
406 let top = docHeight - 20;
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
407 this.addRoundedBox(doc, 0, top, 120, 20);
1947
4235fa8f59d7 clien: pdf-gen: load logo externally; add prepare step
Bernhard Reiter <bernhard@intevation.de>
parents: 1936
diff changeset
408
4235fa8f59d7 clien: pdf-gen: load logo externally; add prepare step
Bernhard Reiter <bernhard@intevation.de>
parents: 1936
diff changeset
409 let logoImage = this.logoImageForPDF;
4235fa8f59d7 clien: pdf-gen: load logo externally; add prepare step
Bernhard Reiter <bernhard@intevation.de>
parents: 1936
diff changeset
410 let aspectRatio = logoImage.width / logoImage.height;
4235fa8f59d7 clien: pdf-gen: load logo externally; add prepare step
Bernhard Reiter <bernhard@intevation.de>
parents: 1936
diff changeset
411 doc.addImage(logoImage, "PNG", 5, docHeight - 19, 110, 110 / aspectRatio);
4235fa8f59d7 clien: pdf-gen: load logo externally; add prepare step
Bernhard Reiter <bernhard@intevation.de>
parents: 1936
diff changeset
412
1903
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
413 let str =
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
414 "Dislaimer: Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor incidunt ut labore et dolore magna aliqua.";
7247ac316cb7 client: pdf-gen: improve layout and ui
Bernhard Reiter <bernhard@intevation.de>
parents: 1897
diff changeset
415 this.addText(doc, 5, docHeight - 6, 8, "black", 115, str);
1931
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
416 },
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
417 addLegend(doc, docWidth) {
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
418 // transforming into an HTMLImageElement only to find out
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
419 // the width x height of the legend image
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
420 // FUTURE: find a better way to get the width and height
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
421 let legendImage = new Image();
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
422 legendImage.src = this.isolinesLegendImgDataURL;
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
423 let aspectRatio = legendImage.width / legendImage.height;
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
424
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
425 this.addRoundedBox(doc, docWidth - 54, 0, 54, 50 / aspectRatio + 4);
8fb1b1a8ea85 client: pdf-gen: improve legend behaviour
Bernhard Reiter <bernhard@intevation.de>
parents: 1928
diff changeset
426 doc.addImage(legendImage, docWidth - 52, 2, 50, 50 / aspectRatio);
1272
bc55ffaeb639 cleaned up client/src directory
Markus Kottlaender <markus@intevation.de>
parents:
diff changeset
427 }
bc55ffaeb639 cleaned up client/src directory
Markus Kottlaender <markus@intevation.de>
parents:
diff changeset
428 }
bc55ffaeb639 cleaned up client/src directory
Markus Kottlaender <markus@intevation.de>
parents:
diff changeset
429 };
bc55ffaeb639 cleaned up client/src directory
Markus Kottlaender <markus@intevation.de>
parents:
diff changeset
430 </script>