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comparison flys-client/src/main/java/de/intevation/flys/client/client/ui/chart/NaviChartOutputTab.java @ 2906:1780841d79af

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Added navigation to fix analysis charts. flys-client/trunk@4673 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Raimund Renkert <raimund.renkert@intevation.de>
date Fri, 15 Jun 2012 12:13:09 +0000
parents
children 37dce0f2f63b
comparison
equal deleted inserted replaced
2905:51ed89b754ae 2906:1780841d79af
1 package de.intevation.flys.client.client.ui.chart;
2
3 import java.util.Date;
4
5 import com.google.gwt.core.client.GWT;
6
7 import com.smartgwt.client.widgets.layout.HLayout;
8 import com.smartgwt.client.widgets.layout.VLayout;
9 import com.smartgwt.client.widgets.Button;
10
11 import com.smartgwt.client.widgets.form.DynamicForm;
12 import com.smartgwt.client.widgets.form.fields.TextItem;
13 import com.smartgwt.client.widgets.form.fields.events.ChangedHandler;
14 import com.smartgwt.client.widgets.form.fields.events.ChangedEvent;
15 import com.smartgwt.client.widgets.events.ClickHandler;
16 import com.smartgwt.client.widgets.events.ClickEvent;
17 import com.smartgwt.client.widgets.form.validator.IsFloatValidator;
18 import com.smartgwt.client.widgets.Canvas;
19 import com.smartgwt.client.widgets.Img;
20 import com.smartgwt.client.types.Alignment;
21 import com.smartgwt.client.widgets.tab.events.TabSelectedHandler;
22 import com.smartgwt.client.widgets.tab.events.TabSelectedEvent;
23
24 import de.intevation.flys.client.shared.model.Collection;
25 import de.intevation.flys.client.shared.model.OutputMode;
26 import de.intevation.flys.client.client.ui.CollectionView;
27 import de.intevation.flys.client.shared.model.FixAnalysisArtifact;
28 import de.intevation.flys.client.shared.model.Artifact;
29 import de.intevation.flys.client.client.Config;
30
31
32 /**
33 * Tab representing and showing one Chart-output.
34 *
35 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
36 */
37 public class NaviChartOutputTab
38 extends ChartOutputTab
39 implements TabSelectedHandler
40 {
41 protected TextItem currentkm;
42
43 public NaviChartOutputTab(
44 String title,
45 Collection collection,
46 OutputMode mode,
47 CollectionView collectionView
48 ){
49 super(title, collection, mode, collectionView);
50 right.removeChild(chart);
51 right.addChild(createNaviChart());
52 collectionView.registerTabHandler(this);
53 }
54
55
56 protected Canvas createNaviChart() {
57 final Artifact art = collectionView.getArtifact();
58 VLayout root = new VLayout();
59 root.setWidth100();
60 root.setHeight100();
61
62 HLayout layout = new HLayout();
63 layout.setAlign(Alignment.CENTER);
64
65 DynamicForm form = new DynamicForm();
66 Button lower = new Button("<<");
67 lower.setWidth(30);
68 Button upper = new Button(">>");
69 upper.setWidth(30);
70 currentkm = new TextItem();
71 currentkm.setWidth(60);
72 currentkm.setShowTitle(false);
73 currentkm.setValidators(new IsFloatValidator());
74
75 form.setFields(currentkm);
76 form.setWidth(60);
77 FixAnalysisArtifact fix = (FixAnalysisArtifact) art;
78
79 String s = fix.getArtifactDescription().getDataValueAsString("step");
80 try {
81 double ds = Double.valueOf(s).doubleValue();
82 collectionView.setSteps(ds);
83 }
84 catch(NumberFormatException nfe) {
85 collectionView.setSteps(100d);
86 }
87 collectionView.setMinKm(fix.getFilter().getFromKm());
88 collectionView.setMaxKm(fix.getFilter().getToKm());
89
90 if (collectionView.getCurrentKm() == -1d) {
91 currentkm.setValue(fix.getFilter().getFromKm());
92 collectionView.setCurrentKm(fix.getFilter().getFromKm());
93 }
94 else {
95 currentkm.setValue(collectionView.getCurrentKm());
96 }
97
98 lower.addClickHandler(new ClickHandler() {
99 public void onClick(ClickEvent ce) {
100 updateChartDown();
101 currentkm.setValue(collectionView.getCurrentKm());
102 }
103 });
104
105 upper.addClickHandler(new ClickHandler() {
106 public void onClick(ClickEvent ce) {
107 updateChartUp();
108 currentkm.setValue(collectionView.getCurrentKm());
109 }
110 });
111
112 currentkm.addChangedHandler(new ChangedHandler() {
113 public void onChanged(ChangedEvent ce) {
114 if(ce.getForm().validate() && ce.getItem().getValue() != null) {
115 try {
116 String s = ce.getItem().getValue().toString();
117 Double d = new Double(s);
118 if (d < collectionView.getMaxKm() &&
119 d > collectionView.getMinKm()) {
120 collectionView.setCurrentKm(d);
121 if (right != null) {
122 updateChartPanel();
123 updateChartInfo();
124 }
125 }
126 }
127 catch(NumberFormatException nfe) {
128 // Do nothing.
129 }
130 }
131 }
132 });
133 layout.addMember(lower);
134 layout.addMember(form);
135 layout.addMember(upper);
136
137 root.addMember(chart);
138 root.addMember(layout);
139 return root;
140 }
141
142
143 protected void updateChartUp() {
144 double currentKm = collectionView.getCurrentKm();
145 if (currentKm < collectionView.getMaxKm()) {
146 double newVal = currentKm * 100;
147 newVal += (collectionView.getSteps() / 10);
148 collectionView.setCurrentKm((double)Math.round(newVal) / 100);
149 updateChartPanel();
150 updateChartInfo();
151 }
152 }
153 protected void updateChartDown() {
154 double currentKm = collectionView.getCurrentKm();
155 if (currentKm > collectionView.getMinKm()) {
156 double newVal = currentKm * 100;
157 newVal -= (collectionView.getSteps() / 10);
158 collectionView.setCurrentKm((double)Math.round(newVal) / 100);
159 updateChartPanel();
160 updateChartInfo();
161 }
162
163 }
164
165 /**
166 * Builds the URL that points to the chart image.
167 *
168 * @param width The width of the requested chart.
169 * @param height The height of the requested chart.
170 * @param xr Optional x range (used for zooming).
171 * @param yr Optional y range (used for zooming).
172 *
173 * @return the URL to the chart image.
174 */
175 @Override
176 protected String getImgUrl(int width, int height) {
177 Config config = Config.getInstance();
178
179 String imgUrl = GWT.getModuleBaseURL();
180 imgUrl += "chart";
181 imgUrl += "?uuid=" + collection.identifier();
182 imgUrl += "&type=" + mode.getName();
183 imgUrl += "&locale=" + config.getLocale();
184 imgUrl += "&timestamp=" + new Date().getTime();
185 imgUrl += "&width=" + Integer.toString(width);
186 imgUrl += "&height=" + Integer.toString(height - 40);
187
188 Number[] zoom = getZoomValues();
189
190 if (zoom != null) {
191 if (zoom[0].intValue() != 0 || zoom[1].intValue() != 1) {
192 // a zoom range of 0-1 means displaying the whole range. In such
193 // case we don't need to zoom.
194 imgUrl += "&minx=" + zoom[0];
195 imgUrl += "&maxx=" + zoom[1];
196 }
197
198 if (zoom[2].intValue() != 0 || zoom[3].intValue() != 1) {
199 // a zoom range of 0-1 means displaying the whole range. In such
200 // case we don't need to zoom.
201 imgUrl += "&miny=" + zoom[2];
202 imgUrl += "&maxy=" + zoom[3];
203 }
204 }
205
206 if(collectionView.getArtifact() instanceof FixAnalysisArtifact) {
207 if (collectionView.getCurrentKm() == -1) {
208 FixAnalysisArtifact fix =
209 (FixAnalysisArtifact) collectionView.getArtifact();
210 collectionView.setCurrentKm(fix.getFilter().getFromKm());
211 }
212 imgUrl += "&currentKm=" + collectionView.getCurrentKm();
213 }
214 GWT.log(imgUrl);
215
216 return imgUrl;
217 }
218
219 public void onTabSelected(TabSelectedEvent tse) {
220 if (this.equals(tse.getTab())) {
221 updateChartPanel();
222 updateChartInfo();
223 currentkm.setValue(collectionView.getCurrentKm());
224 }
225 }
226
227 }
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