Mercurial > gemma
annotate client/src/lib/mixins.js @ 3796:243316850889 yworks-svg2pdf
client: improve pdf generation
* Move general template interpretation code from Waterlevel.vue to
lib/mixins.js. This is the first step to remove code redundancy
as this code is similiar in four other places.
author | Bernhard Reiter <bernhard@intevation.de> |
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date | Thu, 04 Jul 2019 09:16:10 +0200 |
parents | 3878bc0c8e58 |
children | e008197e2215 |
rev | line source |
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1 /* This is Free Software under GNU Affero General Public License v >= 3.0 |
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2 * without warranty, see README.md and license for details. |
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3 * |
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4 * SPDX-License-Identifier: AGPL-3.0-or-later |
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5 * License-Filename: LICENSES/AGPL-3.0.txt |
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6 * |
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7 * Copyright (C) 2018, 2019 by via donau |
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8 * – Österreichische Wasserstraßen-Gesellschaft mbH |
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9 * Software engineering by Intevation GmbH |
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10 * |
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11 * Author(s): |
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12 * * Markus Kottländer <markus.kottlaender@intevation.de> |
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13 * * Fadi Abbud <fadi.abbud@intevation.de> |
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14 * * Bernhard Reiter <bernhard.reiter@intevation.de> |
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15 */ |
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16 import jsPDF from "jspdf-yworks"; |
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17 import locale2 from "locale2"; |
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18 import { mapState } from "vuex"; |
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19 |
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20 export const sortTable = { |
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21 data() { |
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22 return { |
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23 sortColumn: "", |
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24 sortDirection: "ASC", |
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25 pageSize: 20, |
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26 page: 1 |
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27 }; |
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28 }, |
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29 methods: { |
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30 sortTable(sorting) { |
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31 this.sortColumn = sorting.sortColumn; |
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32 this.sortDirection = sorting.sortDirection; |
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33 } |
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34 } |
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35 }; |
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36 |
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37 export const diagram = { |
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38 methods: { |
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39 getDimensions({ main, nav }) { |
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40 //dimensions and margins |
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41 const elem = document.querySelector("#" + this.containerId); |
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42 const svgWidth = elem != null ? elem.clientWidth : 0; |
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43 const svgHeight = elem != null ? elem.clientHeight : 0; |
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44 const mainMargin = main || { top: 20, right: 20, bottom: 110, left: 80 }; |
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45 const navMargin = nav || { |
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46 top: svgHeight - mainMargin.top - 65, |
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47 right: 20, |
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48 bottom: 30, |
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49 left: 80 |
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50 }; |
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51 const width = Number(svgWidth) - mainMargin.left - mainMargin.right; |
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52 const mainHeight = Number(svgHeight) - mainMargin.top - mainMargin.bottom; |
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53 const navHeight = Number(svgHeight) - navMargin.top - navMargin.bottom; |
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54 return { width, mainHeight, navHeight, mainMargin, navMargin }; |
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55 } |
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56 } |
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57 }; |
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58 |
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59 export const pane = { |
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60 computed: { |
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61 paneId() { |
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62 return this.$parent.pane.id; |
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63 } |
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64 } |
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65 }; |
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66 |
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67 export const pdfgen = { |
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68 computed: { |
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69 ...mapState("application", ["logoForPDF"]), |
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70 ...mapState("user", ["user"]) |
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71 }, |
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72 methods: { |
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73 generatePDF(params) { |
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74 // creates a new jsPDF object into this.pdf.doc |
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75 let templateData = params["templateData"]; |
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76 let diagramTitle = params["diagramTitle"]; |
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77 |
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78 this.pdf.doc = new jsPDF( |
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79 "l", |
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80 "mm", |
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81 this.templateData.properties.paperSize |
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82 ); |
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83 // pdf width and height in millimeter (landscape) |
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84 this.pdf.width = templateData.properties.paperSize === "a3" ? 420 : 297; |
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85 this.pdf.height = templateData.properties.paperSize === "a4" ? 297 : 210; |
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86 // check the template elements |
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87 if (templateData) { |
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88 let defaultFontSize = 11, |
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89 defaultColor = "black", |
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90 defaultWidth = 70, |
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91 defaultTextColor = "black", |
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92 defaultBorderColor = "white", |
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93 defaultBgColor = "white", |
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94 defaultRounding = 2, |
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95 defaultPadding = 2, |
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96 defaultOffset = { x: 0, y: 0 }; |
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97 templateData.elements.forEach(e => { |
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98 switch (e.type) { |
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99 case "diagram": { |
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100 this.addDiagram(e.position, e.offset || defaultOffset); |
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101 break; |
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102 } |
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103 case "diagramlegend": { |
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104 this.addDiagramLegend( |
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105 e.position, |
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106 e.offset || defaultOffset, |
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107 e.color || defaultColor |
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108 ); |
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109 break; |
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110 } |
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111 case "diagramtitle": { |
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112 this.addDiagramTitle( |
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113 e.position, |
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114 e.offset || defaultOffset, |
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115 e.fontsize || defaultFontSize, |
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116 e.color || defaultColor, |
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117 diagramTitle |
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118 ); |
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119 break; |
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120 } |
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121 case "text": { |
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122 this.addText( |
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123 e.position, |
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124 e.offset || defaultOffset, |
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125 e.width || defaultWidth, |
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126 e.fontsize || defaultFontSize, |
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127 e.color || defaultTextColor, |
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128 e.text || "" |
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129 ); |
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130 break; |
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131 } |
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132 case "image": { |
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133 this.addImage( |
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134 e.url, |
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135 e.format || "", |
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136 e.position, |
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137 e.offset || defaultOffset, |
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138 e.width || 90, |
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139 e.height || 60 |
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140 ); |
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141 break; |
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142 } |
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143 case "box": { |
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144 this.addBox( |
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145 e.position, |
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146 e.offset || defaultOffset, |
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147 e.width || 90, |
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148 e.height || 60, |
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149 e.rounding === 0 || e.rounding ? e.rounding : defaultRounding, |
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150 e.color || defaultBgColor, |
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151 e.brcolor || defaultBorderColor |
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152 ); |
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153 break; |
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154 } |
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155 case "textbox": { |
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156 this.addTextBox( |
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157 e.position, |
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158 e.offset || defaultOffset, |
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159 e.width, |
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160 e.height, |
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161 e.rounding === 0 || e.rounding ? e.rounding : defaultRounding, |
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162 e.padding || defaultPadding, |
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163 e.fontsize || defaultFontSize, |
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164 e.color || defaultTextColor, |
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165 e.background || defaultBgColor, |
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166 e.text || "", |
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167 e.brcolor || defaultBorderColor |
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168 ); |
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169 break; |
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170 } |
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171 } |
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172 }); |
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173 } |
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174 }, |
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175 |
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176 // add text at specific coordinates and do line breaks |
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177 addText(position, offset, width, fontSize, color, text) { |
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178 text = this.replacePlaceholders(text); |
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179 // split the incoming string to an array, each element is a string of |
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180 // words in a single line |
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181 this.pdf.doc.setFontStyle("normal"); |
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182 this.pdf.doc.setTextColor(color); |
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183 this.pdf.doc.setFontSize(fontSize); |
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184 var textLines = this.pdf.doc.splitTextToSize(text, width); |
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185 // x/y defaults to offset for topleft corner (normal x/y coordinates) |
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186 let x = offset.x; |
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187 let y = offset.y; |
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188 // if position is on the right, x needs to be calculate with pdf width and |
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189 // the size of the element |
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190 if (["topright", "bottomright"].indexOf(position) !== -1) { |
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191 x = this.pdf.width - offset.x - width; |
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192 } |
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193 if (["bottomright", "bottomleft"].indexOf(position) !== -1) { |
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194 y = this.pdf.height - offset.y - this.getTextHeight(textLines.length); |
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195 } |
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196 this.pdf.doc.text(textLines, x, y, { baseline: "hanging" }); |
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197 }, |
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198 replacePlaceholders(text) { |
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199 if (text.includes("{date}")) { |
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200 text = text.replace("{date}", new Date().toLocaleString(locale2)); |
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201 } |
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202 // get only day,month and year from the Date object |
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203 if (text.includes("{date-minor}")) { |
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204 var date = new Date(); |
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205 var dt = |
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206 (date.getDate() < 10 ? "0" : "") + |
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207 date.getDate() + |
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208 "." + |
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209 (date.getMonth() + 1 < 10 ? "0" : "") + |
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210 (date.getMonth() + 1) + |
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211 "." + |
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212 date.getFullYear(); |
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213 text = text.replace("{date-minor}", dt.toLocaleString(locale2)); |
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214 } |
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215 if (text.includes("{user}")) { |
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216 text = text.replace("{user}", this.user); |
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217 } |
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218 return text; |
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219 }, |
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220 addImage(url, format, position, offset, width, height) { |
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221 let x = offset.x; |
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222 let y = offset.y; |
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223 if (["topright", "bottomright"].indexOf(position) !== -1) { |
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224 x = this.pdf.width - offset.x - width; |
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225 } |
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226 if (["bottomright", "bottomleft"].indexOf(position) !== -1) { |
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227 y = this.pdf.height - offset.y - height; |
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228 } |
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229 let image = new Image(); |
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230 if (url) { |
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231 image.src = url; |
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232 } else { |
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233 if (this.logoForPDF) { |
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234 image.src = this.logoForPDF; |
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235 } else { |
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236 image.src = "/img/gemma-logo-for-pdf.png"; |
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237 } |
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238 } |
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239 if (format === "") { |
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240 let tmp = image.src.split("."); |
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241 format = tmp[tmp.length - 1].toUpperCase(); |
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242 } |
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243 this.pdf.doc.addImage(image, format, x, y, width, height); |
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244 }, |
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245 // add text at specific coordinates with a background box |
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246 addBox(position, offset, width, height, rounding, color, brcolor) { |
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247 // x/y defaults to offset for topleft corner (normal x/y coordinates) |
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248 let x = offset.x; |
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249 let y = offset.y; |
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250 |
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251 // if position is on the right, x needs to be calculate with pdf width and |
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252 // the size of the element |
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253 if (["topright", "bottomright"].indexOf(position) !== -1) { |
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254 x = this.pdf.width - offset.x - width; |
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255 } |
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256 if (["bottomright", "bottomleft"].indexOf(position) !== -1) { |
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257 y = this.pdf.height - offset.y - height; |
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258 } |
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259 this.addRoundedBox(x, y, width, height, color, rounding, brcolor); |
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260 }, |
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261 getTextHeight(numberOfLines) { |
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262 // Return estimated height in mm. |
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263 |
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264 // FontSize is given in desktop publishing points defined as 1/72 inch. |
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265 // aka 25.4 / 72 mm |
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266 let fontSize = this.pdf.doc.getFontSize(); |
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267 let lineHeightFactor = 1.15; // default from jspdf-yworks 2.0.2 |
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268 if (typeof this.pdf.doc.getLineHeightFactor !== "undefined") { |
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269 lineHeightFactor = this.pdf.doc.getLineHeightFactor(); |
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270 } |
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271 return numberOfLines * fontSize * (25.4 / 72) * lineHeightFactor; |
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272 }, |
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273 // title for diagram |
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274 addDiagramTitle(position, offset, size, color, text) { |
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275 let x = offset.x, |
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276 y = offset.y; |
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277 this.pdf.doc.setFontSize(size); |
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278 this.pdf.doc.setFontStyle("bold"); |
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279 this.pdf.doc.setTextColor(color); |
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280 let width = |
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281 (this.pdf.doc.getStringUnitWidth(text) * size) / (72 / 25.6) + size / 2; |
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282 // if position is on the right, x needs to be calculate with pdf width and |
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283 // the size of the element |
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284 if (["topright", "bottomright"].indexOf(position) !== -1) { |
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285 x = this.pdf.width - offset.x - width; |
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286 } |
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287 if (["bottomright", "bottomleft"].indexOf(position) !== -1) { |
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288 y = this.pdf.height - offset.y - this.getTextHeight(1); |
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289 } |
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290 this.pdf.doc.text(text, x, y, { baseline: "hanging" }); |
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291 }, |
3141
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292 addRoundedBox(x, y, w, h, color, rounding, brcolor) { |
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293 this.pdf.doc.setDrawColor(brcolor); |
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294 this.pdf.doc.setFillColor(color); |
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295 this.pdf.doc.roundedRect(x, y, w, h, rounding, rounding, "FD"); |
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296 }, |
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297 addTextBox( |
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298 position, |
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299 offset, |
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300 width, |
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301 height, |
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302 rounding, |
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303 padding, |
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304 fontSize, |
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305 color, |
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306 background, |
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307 text, |
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308 brcolor |
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309 ) { |
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310 this.pdf.doc.setFontSize(fontSize); |
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311 text = this.replacePlaceholders(text); |
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312 |
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313 if (!width) { |
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314 width = this.pdf.doc.getTextWidth(text) + 2 * padding; |
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315 } |
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316 let textWidth = width - 2 * padding; |
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317 if (!height) { |
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318 let textLines = this.pdf.doc.splitTextToSize(text, textWidth); |
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319 height = this.getTextHeight(textLines.length) + 2 * padding; |
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320 } |
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321 this.addBox( |
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322 position, |
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323 offset, |
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324 width, |
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325 height, |
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326 rounding, |
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327 background, |
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328 brcolor |
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329 ); |
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330 this.addText( |
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331 position, |
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332 { x: offset.x + padding, y: offset.y + padding }, |
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333 textWidth, |
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334 fontSize, |
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335 color, |
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336 text |
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337 ); |
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338 } |
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339 } |
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340 }; |