Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/GaugePanel.java @ 4204:9f9843491ac4

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Only create the GaugeTree and RiverInfoPanel once This fixes resizing issues when changing the river. SmartGWT is not able to recalculate the height and width if a GWT widget is inserted later. Every attempt to call a recalculation manually did fail. Fix for flys/issue925 (W-INFO / Pegel-Info-Modul / Zeile Gewässer-INFOS)
author Björn Ricks <bjoern.ricks@intevation.de>
date Mon, 22 Oct 2012 15:29:56 +0200
parents de795c13dcfb
children 0dd8963cec9c
rev   line source
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1 package de.intevation.flys.client.client.ui;
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2
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3 import com.google.gwt.core.client.GWT;
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4 import com.google.gwt.i18n.client.NumberFormat;
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5 import com.google.gwt.user.client.rpc.AsyncCallback;
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6 import com.google.gwt.user.client.ui.Anchor;
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7 import com.google.gwt.user.client.ui.HorizontalPanel;
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8 import com.google.gwt.user.client.ui.Label;
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9
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10 import com.smartgwt.client.types.Overflow;
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11 import com.smartgwt.client.widgets.Canvas;
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12 import com.smartgwt.client.widgets.events.ResizedEvent;
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13 import com.smartgwt.client.widgets.events.ResizedHandler;
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14 import com.smartgwt.client.widgets.layout.SectionStackSection;
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15 import com.smartgwt.client.widgets.layout.VLayout;
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16
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17 import de.intevation.flys.client.client.FLYS;
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18 import de.intevation.flys.client.client.FLYSConstants;
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19 import de.intevation.flys.client.client.services.GaugeOverviewInfoService;
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20 import de.intevation.flys.client.client.services.GaugeOverviewInfoServiceAsync;
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21 import de.intevation.flys.client.shared.model.DataList;
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22 import de.intevation.flys.client.shared.model.RiverInfo;
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23
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24 /**
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25 * The GaugePanel is intended to be used within a SectionStackSection
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26 * It extends the VLayout by two methods to show and hide the
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27 * section stack section.
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28 *
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29 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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30 */
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31 public class GaugePanel extends VLayout implements ResizedHandler {
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32
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33 /** SectionStackSection where this GaugePanel belongs in*/
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34 private SectionStackSection sectionStack;
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35
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36 /** Name of the river */
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37 private String river;
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38
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39 /** The message class that provides i18n strings.*/
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40 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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41
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42 protected GaugeOverviewInfoServiceAsync gaugeOverviewInfoService =
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43 GWT.create(GaugeOverviewInfoService.class);
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44
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45 protected GaugeTree gaugetree;
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46 protected Canvas gaugetreecanvas;
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47
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48 protected RiverInfoPanel riverinfopanel;
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49
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50 /**
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51 * Creates a new VLayout with a SectionStackSection
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52 * The GaugePanel's SectionStackSection is hidden by default.
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53 *
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54 * @param flys The FLYS object
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55 * @param sectionStack The section stack section to place the VLayout in.
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56 */
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57 public GaugePanel(FLYS flys, SectionStackSection sectionStack) {
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58 gaugetree = new GaugeTree(flys);
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59 gaugetreecanvas = new Canvas();
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60 gaugetreecanvas.addChild(gaugetree);
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61
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62 setOverflow(Overflow.HIDDEN);
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63 sectionStack.setHidden(true);
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64 sectionStack.setItems(this);
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65 this.sectionStack = sectionStack;
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66 setStyleName("gaugepanel");
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67 addResizedHandler(this);
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68 }
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69
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70 /**
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71 * Sets and loads the river data if river is not the current set river
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72 */
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73 public void setRiver(String river) {
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74 if (!river.equals(this.river)) {
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75 this.river = river;
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76 this.refresh();
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77 }
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78 }
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79
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80 /**
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81 * Sets the data and closes not corresponding folds in the gauge tree
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82 */
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83 public void setData(DataList[] data) {
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84 gaugetree.setData(data);
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85 }
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86
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87 /**
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88 * Loads the river info and renders it afterwards
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89 */
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90 public void refresh() {
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91 gaugeOverviewInfoService.getRiverInfo(this.river, new AsyncCallback<RiverInfo>() {
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92 @Override
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93 public void onFailure(Throwable e) {
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94 GWT.log("Could not load the river info." + e);
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95 }
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96
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97 @Override
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98 public void onSuccess(RiverInfo riverinfo) {
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99 GWT.log("Loaded river info");
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100 renderGaugeOverviewInfo(riverinfo);
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101 }
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102 });
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103 }
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104
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105 public void renderGaugeOverviewInfo(RiverInfo riverinfo) {
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106 gaugetree.setGauges(riverinfo);
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107
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108 if (riverinfopanel == null) {
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109 removeMembers(getMembers());
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110 riverinfopanel = new RiverInfoPanel(riverinfo);
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111
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112 gaugetreecanvas.setWidth("100%");
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113
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114 addMember(riverinfopanel);
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115 addMember(gaugetreecanvas);
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116 }
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117 else {
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118 riverinfopanel.setRiverInfo(riverinfo);
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119 }
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120 }
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121
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122 @Override
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123 public void onResized(ResizedEvent event) {
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124 /* this height calculation is only an approximation and doesn't reflect
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125 * the real height of the the gaugetree. */
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126 int height = getInnerContentHeight() -
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127 RiverInfoPanel.getStaticHeight();
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128
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129 if (height < 0) {
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130 height = 0;
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131 }
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132
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133 GWT.log("GaugePanel - onResize " + height);
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134
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135 gaugetree.setHeight("" + height + "px");
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136
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137 for (Canvas canvas : getMembers()) {
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138 GWT.log("GaugePanel - member height " + canvas.getHeight());
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139 }
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140 }
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141
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142
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143 /**
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144 * Hide the section stack section.
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145 */
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146 @Override
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147 public void hide() {
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148 GWT.log("GaugePanel - hide");
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149 this.sectionStack.setHidden(true);
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150 }
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151
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152 /**
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153 * Show the section stack section.
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154 */
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155 @Override
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156 public void show() {
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157 GWT.log("GaugePanel - show");
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158 this.sectionStack.setHidden(false);
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159 }
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160 }
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