Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/InfoPanel.java @ 4268:f75968f0ce80

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Refactor GaugePanel and GaugeInfo to extract a base class Extract a base class from GaugePanel and GaugeInfo to reuse code for displaying the measurement station information.
author Björn Ricks <bjoern.ricks@intevation.de>
date Fri, 26 Oct 2012 12:19:54 +0200
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4268
f75968f0ce80 Refactor GaugePanel and GaugeInfo to extract a base class
Björn Ricks <bjoern.ricks@intevation.de>
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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
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5 import com.smartgwt.client.types.Overflow;
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6 import com.smartgwt.client.widgets.Canvas;
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7 import com.smartgwt.client.widgets.events.ResizedEvent;
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8 import com.smartgwt.client.widgets.events.ResizedHandler;
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9 import com.smartgwt.client.widgets.layout.SectionStackSection;
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10 import com.smartgwt.client.widgets.layout.VLayout;
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11 import com.smartgwt.client.widgets.WidgetCanvas;
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12
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13 import de.intevation.flys.client.client.FLYSConstants;
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14 import de.intevation.flys.client.client.services.RiverInfoService;
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15 import de.intevation.flys.client.client.services.RiverInfoServiceAsync;
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16 import de.intevation.flys.client.shared.model.DataList;
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17 import de.intevation.flys.client.shared.model.RiverInfo;
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18
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19 /**
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20 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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21 */
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22 public abstract class InfoPanel extends VLayout implements ResizedHandler {
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23
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24 /** SectionStackSection where this InfoPanel belongs in*/
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25 protected SectionStackSection section;
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26
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27 /** Name of the river */
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28 protected String river;
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29
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30 /** The message class that provides i18n strings.*/
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31 protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
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32
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33 protected RiverInfoServiceAsync riverInfoService = GWT.create(RiverInfoService.class);
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34
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35 /** Panel to show the info about the river */
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36 protected RiverInfoPanel riverinfopanel;
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37 protected InfoTree tree;
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38
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39 /** Wrapper arround the GWT Tree (InfoTree) object */
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40 protected Canvas treecanvas;
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41
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42 protected final static String SECTION_ID = "InfoPanelSection";
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43
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44 public InfoPanel(InfoTree tree) {
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45 SectionStackSection section = new SectionStackSection();
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46 section.setExpanded(false);
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47 section.setTitle(getSectionTitle());
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48 section.setName(SECTION_ID);
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49 section.setID(SECTION_ID);
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50
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51 treecanvas = new WidgetCanvas(tree);
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52
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53 setOverflow(Overflow.HIDDEN);
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54 setStyleName("infopanel");
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55
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56 section.setHidden(true);
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57 section.setItems(this);
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58 this.section = section;
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59 this.tree = tree;
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60
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61 addResizedHandler(this);
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62 }
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63
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64 /**
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65 * Sets and loads the river data if river is not the current set river
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66 */
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67 public void setRiver(String river) {
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68 if (!river.equals(this.river)) {
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69 this.river = river;
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70 this.refresh();
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71 }
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72 }
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73
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74 /**
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75 * Sets the data and closes not corresponding folds in the gauge tree
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76 */
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77 public void setData(DataList[] data) {
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78 tree.setData(data);
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79 }
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80
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81 protected void render(RiverInfo riverinfo) {
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82 tree.setRiverInfo(riverinfo);
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83
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84 if (riverinfopanel == null) {
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85 removeAllMembers();
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86
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87 riverinfopanel = new RiverInfoPanel(riverinfo);
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88
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89 addMember(riverinfopanel);
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90 addMember(treecanvas);
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91 }
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92 else {
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93 riverinfopanel.setRiverInfo(riverinfo);
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94 }
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95 }
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96
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97 @Override
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98 public void onResized(ResizedEvent event) {
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99 /* this height calculation is only an approximation and doesn't reflect
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100 * the real height of the the gaugetree. */
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101 int height = getInnerContentHeight() -
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102 RiverInfoPanel.getStaticHeight();
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103 int width = getInnerContentWidth();
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104
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105 if (height < 0) {
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106 height = 0;
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107 }
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108
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109 GWT.log("InfoPanel - onResize " + height);
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110
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111 tree.setHeight("" + height + "px");
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112 tree.setWidth("" + width + "px");
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113 }
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114
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115 /**
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116 * Hide the section stack section.
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117 */
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118 @Override
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119 public void hide() {
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120 GWT.log("InfoPanel - hide");
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121 this.section.setHidden(true);
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122 }
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123
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124 /**
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125 * Show the section stack section.
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126 */
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127 @Override
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128 public void show() {
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129 GWT.log("InfoPanel - show");
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130 this.section.setHidden(false);
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131 }
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132
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133 @Override
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134 public void addMember(Canvas component) {
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135 super.addMember(component);
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136 expand();
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137 }
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138
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139 @Override
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140 public void removeMembers(Canvas[] components) {
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141 super.removeMembers(components);
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142 contract();
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143 }
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144
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145 public SectionStackSection getSection() {
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146 return this.section;
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147 }
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148
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149 protected void removeAllMembers() {
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150 removeMembers(getMembers());
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151 }
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152
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153 /**
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154 * Expands the gauge section
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155 */
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156 public void expand() {
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157 section.setExpanded(true);
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158 }
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159
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160 /**
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161 * Contracts/shrinks the expanded gauge section
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162 */
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163 public void contract() {
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164 section.setExpanded(false);
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165 }
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166
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167 protected abstract void refresh();
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168
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169 protected abstract String getSectionTitle();
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170 }
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