Mercurial > dive4elements > river

annotate gwt-client/src/main/java/org/dive4elements/river/client/client/ui/DatacagePairWidget.java @ 9227:84397da33d17

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Allow to control specific behaviour in TwinDatacagePanel Implemented client logic of 'intelligent datacage filtering' for SINFO
author gernotbelger
date Wed, 04 Jul 2018 18:28:08 +0200
parents e3c2ae1887e8
children
rev   line source
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.client.client.ui;
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10
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11 import org.dive4elements.river.client.client.FLYSConstants;
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12 import org.dive4elements.river.client.shared.model.ToLoad;
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13
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14 import com.google.gwt.core.client.GWT;
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15 import com.smartgwt.client.util.SC;
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16 import com.smartgwt.client.widgets.Button;
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17 import com.smartgwt.client.widgets.events.ClickEvent;
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18 import com.smartgwt.client.widgets.events.ClickHandler;
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19 import com.smartgwt.client.widgets.grid.ListGrid;
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20 import com.smartgwt.client.widgets.layout.HLayout;
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21 import com.smartgwt.client.widgets.layout.VLayout;
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22
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23 /**
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24 * Widget showing two Datacages and a add-this-button.
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25 * Insert a record into a listgrid when add-this-button clicked.
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26 */
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27 public class DatacagePairWidget extends VLayout {
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28
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29 /**
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30 * Allows for advanced controlling of the behavior of this pair widget.
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31 */
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32 public static interface IDatacagePairControler {
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33 void setup(DatacageWidget leftWidget, DatacageWidget rightWidget, HLayout toolbarLayout);
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34 }
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35
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36 /**
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37 * {@link IDatacagePairControler} implementation that does nothing.
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38 */
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39 public static final IDatacagePairControler NIL_CONTROLER = new IDatacagePairControler() {
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40 @Override
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41 public void setup(final DatacageWidget leftWidget, final DatacageWidget rightWidget, final HLayout toolbarLayout) {
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42 // does nothing
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43 }
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44 };
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45
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46 /** i18n resource. */
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47 private static final FLYSConstants MSG = GWT.create(FLYSConstants.class);
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48
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49 /** The "remote" ListGrid to insert data to when add-button is clicked. */
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50 private final ListGrid grid;
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51
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52 /** First (upper) DataCage Grid. */
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53 private final DatacageWidget firstDatacageWidget;
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54
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55 /** Second (lower) DataCage Grid. */
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56 private final DatacageWidget secondDatacageWidget;
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57
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58 /** Max number of recommendation pairs to be added */
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59 private final int maxCount;
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60
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61 /** errorMsg maxCount */
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62 private final String msgMaxCount;
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63
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64 public DatacagePairWidget(final IDatacagePairControler controler, final DatacageWidgetData leftData, final DatacageWidgetData rightData,
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65 final ListGrid grid, final int maxCount, final String msgMaxCount) {
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66
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67 this.msgMaxCount = msgMaxCount;
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68 this.maxCount = maxCount;
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69 this.grid = grid;
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70
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71 final HLayout hLayout = new HLayout();
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72
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73 this.firstDatacageWidget = new DatacageWidget(leftData);
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74 this.secondDatacageWidget = new DatacageWidget(rightData);
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75
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76 this.firstDatacageWidget.setIsMutliSelectable(false);
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77 this.secondDatacageWidget.setIsMutliSelectable(false);
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78
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79 hLayout.addMember(this.firstDatacageWidget);
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80 hLayout.addMember(this.secondDatacageWidget);
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81
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82 final HLayout toolbarLayout = new HLayout();
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83 toolbarLayout.setAutoHeight();
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84
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85 final Button plusBtn = new Button(MSG.datacage_add_pair());
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86 plusBtn.setAutoFit(true);
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87 plusBtn.addClickHandler(new ClickHandler() {
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88 @Override
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89 public void onClick(final ClickEvent event) {
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90 plusClicked();
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91 }
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92 });
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93 toolbarLayout.addMember(plusBtn);
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94
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95 addMember(hLayout);
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96 addMember(toolbarLayout);
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97
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98 controler.setup(this.firstDatacageWidget, this.secondDatacageWidget, toolbarLayout);
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99 }
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100
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101 /**
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102 * Callback for add-button.
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103 * Fires to load for every selected element and handler.
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104 */
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105 protected final void plusClicked() {
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106 final ToLoad toLoad1 = this.firstDatacageWidget.getSelection();
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107 final ToLoad toLoad2 = this.secondDatacageWidget.getSelection();
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108
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109 // FIXME: allows to select folders... but it should not
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110
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111 if (toLoad1 == null || toLoad2 == null || toLoad1.toRecommendations().isEmpty() || toLoad2.toRecommendations().isEmpty()) {
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112 SC.say(MSG.warning_select_two_values());
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113 return;
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114 }
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115
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116 if (this.grid.getTotalRows() >= this.maxCount) {
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117 SC.say(this.msgMaxCount);
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118 return;
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119 }
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120
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121 this.grid.addData(new RecommendationPairRecord(toLoad1.toRecommendations().get(0), toLoad2.toRecommendations().get(0)));
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122 }
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123 }
http://dive4elements.wald.intevation.org