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annotate gwt-client/src/main/java/org/dive4elements/river/client/client/ui/map/MyWMSLoadHandler.java @ 9700:b2768f367dff

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handler for wms theme legend
author dnt_bjoernsen <d.tironi@bjoernsen.de>
date Wed, 20 Jan 2021 19:06:57 +0100
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9700
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
parents:
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1 package org.dive4elements.river.client.client.ui.map;
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
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2
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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3 import com.google.gwt.event.dom.client.LoadEvent;
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
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4 import com.google.gwt.event.shared.HandlerRegistration;
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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5 import com.google.gwt.user.client.ui.Image;
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
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6 import com.smartgwt.client.widgets.layout.HLayout;
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7
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
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8 public class MyWMSLoadHandler implements com.google.gwt.event.dom.client.LoadHandler {
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
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9 private Image m_image;
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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10 private HLayout m_row;
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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11 private HandlerRegistration m_handelReg;
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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12
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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13 public MyWMSLoadHandler(HLayout row, Image image) {
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
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14 m_image = image;
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
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15 m_row = row;
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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16 m_handelReg = image.addLoadHandler(this);
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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17 }
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18
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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19 @Override
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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20 public void onLoad(LoadEvent event) {
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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21 setDimensions( );
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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22 if (m_handelReg != null)
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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23 m_handelReg.removeHandler();
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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24 }
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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25
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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26 private void setDimensions() {
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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27 final int imageWidth = m_image.getWidth();
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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28 final int imageHeight = m_image.getHeight();
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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29 final double widthPercent = imageWidth / 400.;
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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30
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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31 // removing the limit of 150px height (legend can have an infinite height now,
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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32 // as long as the width is less/eq 400px; if the width is >400,
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
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33 // the legend will be scaled to 400px width; the ratio will be kept)
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34
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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35 // final double heightPercent = imageHeight / 150.;
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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36 if (widthPercent > 1)// || heightPercent > 1) {
b2768f367dff handler for wms theme legend
dnt_bjoernsen <d.tironi@bjoernsen.de>
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37 m_image.setSize((int) (imageWidth / widthPercent) + "px", (int) (imageHeight / widthPercent) + "px");
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38
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39
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40 final int minHeight = 30;
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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41 m_row.setHeight( m_image.getHeight() < minHeight ? minHeight : m_image.getHeight());
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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42 m_row.setWidth( m_image.getWidth());
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dnt_bjoernsen <d.tironi@bjoernsen.de>
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43 }
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44 }
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