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annotate client/src/components/layers/Layerselect.vue @ 1926:1220cfe96efd

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client: prepare isoline legend graphic for reuse * Change loading of the legend image for the isolines to directly convert it into a dataUrl, so it can be re-used later. Doing it here as, this is the place where asynchronous loading is taking place. * License header: Add BER as author and 2019.
author Bernhard Reiter <bernhard@intevation.de>
date Mon, 21 Jan 2019 10:41:46 +0100
parents 16fb9667ddf8
children 5a37ee321651
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1 <template>
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2 <div>
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3 <div class="form-check d-flex flex-row flex-start selection">
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4 <input
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5 class="form-check-input"
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6 @change="visibilityToggled"
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7 :id="layername"
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8 type="checkbox"
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9 :checked="isVisible"
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10 />
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11 <LegendElement
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12 :layername="layername"
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13 :layerindex="layerindex"
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14 ></LegendElement>
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15 <label class="layername form-check-label" @click="visibilityToggled">{{
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16 layername
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17 }}</label>
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18 </div>
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19 <div v-if="isVisible && layername == 'Bottleneck isolines'">
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20 <img class="rounded my-1 d-block" :src="isolinesLegendImgUrl" />
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21 </div>
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22 </div>
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23 </template>
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24
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25 <style lang="scss" scoped>
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26 .selection {
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27 text-align: left;
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28 }
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29 .layername {
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30 margin-left: $small-offset;
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31 }
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32 </style>
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33
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34 <script>
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35 /* This is Free Software under GNU Affero General Public License v >= 3.0
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36 * without warranty, see README.md and license for details.
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37 *
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38 * SPDX-License-Identifier: AGPL-3.0-or-later
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39 * License-Filename: LICENSES/AGPL-3.0.txt
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40 *
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41 * Copyright (C) 2018, 2019 by via donau
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42 * – Österreichische Wasserstraßen-Gesellschaft mbH
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43 * Software engineering by Intevation GmbH
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44 *
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45 * Author(s):
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46 * * Thomas Junk <thomas.junk@intevation.de>
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47 * * Bernhard Reiter <bernhard.reiter@intevation.de>
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48 */
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49 import { HTTP } from "@/lib/http";
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50 export default {
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51 props: ["layername", "layerindex", "isVisible"],
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52 name: "layerselect",
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53 data() {
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54 return {
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55 isolinesLegendImgUrl: ""
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56 };
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57 },
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58 components: {
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59 LegendElement: () => import("./LegendElement.vue")
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60 },
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61 methods: {
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62 visibilityToggled() {
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63 this.$emit("visibilityToggled", this.layerindex);
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64 }
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65 },
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66 created() {
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67 // fetch legend image for bottleneck isolines
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68 // directly read as dataURL so it is reusable later
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69 // TODO: move to store
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70 if (this.layername == "Bottleneck isolines") {
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71 const src =
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72 "/internal/wms?REQUEST=GetLegendGraphic&VERSION=1.0.0&FORMAT=image/png&WIDTH=20&HEIGHT=20&LAYER=sounding_results_contour_lines_geoserver&legend_options=columns:4;fontAntiAliasing:true";
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73 HTTP.get(src, {
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74 headers: {
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75 Accept: "image/png",
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76 "X-Gemma-Auth": localStorage.getItem("token")
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77 },
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78 responseType: "blob"
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79 }).then(response => {
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80 var that = this;
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81 const reader = new FileReader();
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82 reader.onload = function() {
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83 that.isolinesLegendImgUrl = this.result;
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84 };
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85 reader.readAsDataURL(response.data);
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86 });
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87 }
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88 }
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89 };
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90 </script>