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[Geotools-commits] svn - r25649 - geotools/trunk/gt/demo/mappane/src/main/java/org/geotools/demo/mappane
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From: <ian...@sv...> - 2007-05-28 00:38:34
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Author: ianturton
Date: 2007-05-27 17:37:49 -0700 (Sun, 27 May 2007)
New Revision: 25649
Added:
geotools/trunk/gt/demo/mappane/src/main/java/org/geotools/demo/mappane/WMSMapLayer.java
Modified:
geotools/trunk/gt/demo/mappane/src/main/java/org/geotools/demo/mappane/WMSViewer.java
Log:
added new WMSMapLayer.java to handle the changes in zoomlevel and mappane resize events.
Added: geotools/trunk/gt/demo/mappane/src/main/java/org/geotools/demo/mappane/WMSMapLayer.java
===================================================================
--- geotools/trunk/gt/demo/mappane/src/main/java/org/geotools/demo/mappane/WMSMapLayer.java 2007-05-27 17:02:06 UTC (rev 25648)
+++ geotools/trunk/gt/demo/mappane/src/main/java/org/geotools/demo/mappane/WMSMapLayer.java 2007-05-28 00:37:49 UTC (rev 25649)
@@ -0,0 +1,268 @@
+package org.geotools.demo.mappane;
+
+import java.awt.Component;
+import java.awt.event.ComponentEvent;
+import java.awt.event.ComponentListener;
+import java.awt.image.BufferedImage;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Set;
+
+import javax.imageio.ImageIO;
+
+import org.geotools.coverage.grid.GridCoverage2D;
+import org.geotools.coverage.grid.GridCoverageFactory;
+import org.geotools.data.DataUtilities;
+import org.geotools.data.FeatureSource;
+import org.geotools.data.ows.CRSEnvelope;
+import org.geotools.data.ows.Layer;
+import org.geotools.data.wms.WebMapServer;
+import org.geotools.data.wms.request.GetMapRequest;
+import org.geotools.factory.CommonFactoryFinder;
+import org.geotools.geometry.jts.ReferencedEnvelope;
+import org.geotools.map.DefaultMapLayer;
+import org.geotools.map.MapContext;
+import org.geotools.map.MapLayer;
+import org.geotools.map.event.MapBoundsEvent;
+import org.geotools.map.event.MapBoundsListener;
+import org.geotools.map.event.MapLayerEvent;
+import org.geotools.resources.coverage.FeatureUtilities;
+import org.geotools.styling.FeatureTypeStyle;
+import org.geotools.styling.RasterSymbolizer;
+import org.geotools.styling.Rule;
+import org.geotools.styling.Style;
+import org.geotools.styling.StyleFactory;
+import org.geotools.styling.Symbolizer;
+
+public class WMSMapLayer extends DefaultMapLayer implements MapLayer,
+ MapBoundsListener, ComponentListener {
+ private Layer layer;
+
+ private WebMapServer wms;
+
+ GridCoverage2D grid;
+
+ private ReferencedEnvelope bbox;
+
+ private int width = 400;
+
+ private int height = 200;
+
+ private StyleFactory factory = CommonFactoryFinder.getStyleFactory(null);
+
+ private boolean transparent = true;
+
+ private String bgColour;
+
+ private String exceptions="application/vnd.ogc.se_inimage";
+
+ static GridCoverageFactory gcf = new GridCoverageFactory();
+
+ public WMSMapLayer(WebMapServer wms, Layer layer) {
+ super((FeatureSource) null, null, "");
+ this.layer = layer;
+ this.wms = wms;
+ setDefaultStyle();
+ setGrid();
+ }
+
+ public void setDefaultStyle() {
+
+ RasterSymbolizer symbolizer = factory.createRasterSymbolizer();
+ // SLDParser stylereader = new SLDParser(factory,sld);
+ // org.geotools.styling.Style[] style = stylereader.readXML();
+ Style style = factory.createStyle();
+ Rule[] rules = new Rule[1];
+ rules[0] = factory.createRule();
+ rules[0].setSymbolizers(new Symbolizer[] { symbolizer });
+ FeatureTypeStyle type = factory.createFeatureTypeStyle(rules);
+ style.addFeatureTypeStyle(type);
+ setStyle(style);
+ }
+
+ private void setGrid() {
+ GetMapRequest mapRequest = wms.createGetMapRequest();
+ mapRequest.addLayer(layer);
+ System.out.println(width + " " + height);
+ mapRequest.setDimensions(getWidth(), getHeight());
+ mapRequest.setFormat("image/png");
+ if(bgColour!=null)mapRequest.setBGColour(bgColour);
+ mapRequest.setExceptions(exceptions);
+ Set srs = layer.getSrs();
+ String crs;
+ if (srs.contains("EPSG:4326")) {// really we should get the underlying
+ // map pane CRS
+ crs = "EPSG:4326";
+ } else {
+ crs = (String) srs.iterator().next();
+ }
+ System.out.println("crs = " + crs);
+ if (bbox == null) {
+ HashMap bboxes = layer.getBoundingBoxes();
+ Set keys = bboxes.keySet();
+ String k = "";
+ for (Iterator it = keys.iterator(); it.hasNext(); k = (String) it
+ .next()) {
+ System.out.println(k + " -> " + bboxes.get(k));
+ }
+
+ CRSEnvelope bb = (CRSEnvelope) bboxes.get(crs);
+ if (bb == null) {// something bad happened
+ bb = layer.getLatLonBoundingBox();
+ bb.setEPSGCode("EPSG:4326"); // for some reason WMS doesn't
+ // set
+ // this.
+
+ }
+ bbox = new ReferencedEnvelope(bb);
+ }
+ // fix the bounds for the shape of the window.
+
+ System.out.println(bbox.toString());
+ mapRequest.setBBox(bbox.getMinX() + "," + bbox.getMinY() + ","
+ + bbox.getMaxX() + "," + bbox.getMaxY());
+ mapRequest.setTransparent(transparent);
+ URL request = mapRequest.getFinalURL();
+ System.out.println(request.toString());
+ InputStream is=null;
+ try {
+
+ String type = request.openConnection().getContentType();
+ is = request.openStream();
+ if (type.equalsIgnoreCase("image/png")) {
+ BufferedImage image = ImageIO.read(is);
+
+ /*
+ * if (bbox == null) { Envelope2D env = new Envelope2D(bb
+ * .getCoordinateReferenceSystem(), bb.getMinX(), bb .getMinY(),
+ * bb.getLength(0), bb.getLength(1)); bbox = new
+ * ReferencedEnvelope(env); }
+ */
+ grid = gcf.create(layer.getTitle(), image, bbox);
+ System.out.println("fetched new grid");
+ if (featureSource == null)
+ featureSource = DataUtilities.source(FeatureUtilities
+ .wrapGridCoverage(grid));
+
+ fireMapLayerListenerLayerChanged(new MapLayerEvent(this,
+ MapLayerEvent.DATA_CHANGED));
+ } else {
+ System.out.println("error content type is " + type);
+ if (type.startsWith("text")) {
+ String line = "";
+ BufferedReader br = new BufferedReader(
+ new InputStreamReader(is));
+ while ((line = br.readLine()) != null) {
+ System.out.println(line);
+ }
+ }
+ }
+ } catch (IOException e1) {
+ // TODO Auto-generated catch block
+ e1.printStackTrace();
+ } catch (Exception ex) {
+ // TODO Auto-generated catch block
+ ex.printStackTrace();
+ }finally {
+ try {
+ if(is!=null)
+ is.close();
+ } catch (IOException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ }
+ }
+
+ public void mapBoundsChanged(MapBoundsEvent event) {
+
+ bbox = ((MapContext) event.getSource()).getAreaOfInterest();
+ System.out.println("old:" + bbox + "\n" + "new:"
+ + event.getOldAreaOfInterest());
+ if (!bbox.equals(event.getOldAreaOfInterest())) {
+ System.out.println("bbox changed - fetching new grid");
+ setGrid();
+ }
+ }
+
+ public int getHeight() {
+ return height;
+ }
+
+ public void setHeight(int height) {
+ this.height = height;
+ }
+
+ public int getWidth() {
+ return width;
+ }
+
+ public void setWidth(int width) {
+ this.width = width;
+ }
+
+ public GridCoverage2D getGrid() {
+ return grid;
+ }
+
+ public boolean isTransparent() {
+ return transparent;
+ }
+
+ public void setTransparent(boolean transparent) {
+ this.transparent = transparent;
+ }
+
+ public void componentHidden(ComponentEvent e) {
+ // TODO Auto-generated method stub
+
+ }
+
+ public void componentMoved(ComponentEvent e) {
+ // TODO Auto-generated method stub
+
+ }
+
+ public void componentResized(ComponentEvent e) {
+ Component c = (Component) e.getSource();
+ width = c.getWidth();
+ height = c.getHeight();
+
+ }
+
+ public void componentShown(ComponentEvent e) {
+ // TODO Auto-generated method stub
+
+ }
+
+ public String getBgColour() {
+ return bgColour;
+ }
+
+ public void setBgColour(String bgColour) {
+ this.bgColour = bgColour;
+ }
+
+ public String getExceptions() {
+ return exceptions;
+ }
+
+ /**
+ * Set the type of exception reports.
+ * Valid values are:
+ * "application/vnd.ogc.se_xml" (the default)
+ * "application/vnd.ogc.se_inimage"
+ * "application/vnd.ogc.se_blank"
+ *
+ * @param exceptions
+ */
+ public void setExceptions(String exceptions) {
+ this.exceptions = exceptions;
+ }
+
+}
Modified: geotools/trunk/gt/demo/mappane/src/main/java/org/geotools/demo/mappane/WMSViewer.java
===================================================================
--- geotools/trunk/gt/demo/mappane/src/main/java/org/geotools/demo/mappane/WMSViewer.java 2007-05-27 17:02:06 UTC (rev 25648)
+++ geotools/trunk/gt/demo/mappane/src/main/java/org/geotools/demo/mappane/WMSViewer.java 2007-05-28 00:37:49 UTC (rev 25649)
@@ -18,6 +18,7 @@
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Image;
+import java.awt.RenderingHints;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
@@ -65,13 +66,18 @@
import org.geotools.gui.swing.ZoomOutAction;
import org.geotools.map.DefaultMapContext;
import org.geotools.map.MapContext;
+import org.geotools.map.MapLayer;
import org.geotools.referencing.CRS;
import org.geotools.referencing.crs.DefaultGeographicCRS;
import org.geotools.renderer.GTRenderer;
import org.geotools.renderer.lite.StreamingRenderer;
+import org.geotools.styling.FeatureTypeStyle;
+import org.geotools.styling.RasterSymbolizer;
+import org.geotools.styling.Rule;
import org.geotools.styling.SLDParser;
import org.geotools.styling.Style;
import org.geotools.styling.StyleFactory;
+import org.geotools.styling.Symbolizer;
import org.opengis.coverage.grid.GridCoverage;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
@@ -92,6 +98,10 @@
JLabel text;
+ GTRenderer renderer;
+
+ MapContext context;
+
final JFileChooser jfc = new JFileChooser();
public WMSViewer() {
@@ -110,7 +120,7 @@
Action zoomIn = new ZoomInAction(mp);
Action zoomOut = new ZoomOutAction(mp);
Action pan = new PanAction(mp);
- Action select = new SelectAction(mp);
+ // Action select = new SelectAction(mp);
Action reset = new ResetAction(mp);
jtb.add(zoomIn);
jtb.add(zoomOut);
@@ -118,7 +128,7 @@
jtb.addSeparator();
jtb.add(reset);
jtb.addSeparator();
- jtb.add(select);
+ // jtb.add(select);
final JButton button = new JButton();
button.setText("CRS");
button.setToolTipText("Change map prjection");
@@ -166,58 +176,48 @@
mp.repaint();
}
- public void load(GridCoverage2D grid) throws Exception {
+ public void load(WMSMapLayer layer) throws Exception {
- Envelope2D env = grid.getEnvelope2D();
+ Envelope2D env = layer.getGrid().getEnvelope2D();
Envelope en = new Envelope(env.x, env.y, env.width, env.height);
mp.setMapArea(en);
- StyleFactory factory = CommonFactoryFinder.getStyleFactory(null);
- // SLDParser stylereader = new SLDParser(factory,sld);
- // org.geotools.styling.Style[] style = stylereader.readXML();
-
- CoordinateReferenceSystem crs = grid.getCoordinateReferenceSystem();
+ CoordinateReferenceSystem crs = layer.getGrid()
+ .getCoordinateReferenceSystem();
if (crs == null)
crs = DefaultGeographicCRS.WGS84;
- MapContext context = new DefaultMapContext(crs);
- context.addLayer(grid, factory.createStyle());
- context.getLayerBounds();
- mp.setHighlightLayer(context.getLayer(0));
-
- GTRenderer renderer;
- if (false) {
- renderer = new StreamingRenderer();
- HashMap hints = new HashMap();
- hints.put("memoryPreloadingEnabled", Boolean.TRUE);
- renderer.setRendererHints(hints);
- } else {
- renderer = new StreamingRenderer();
- HashMap hints = new HashMap();
- hints.put("memoryPreloadingEnabled", Boolean.FALSE);
- renderer.setRendererHints(hints);
+ if (context == null) {
+ context = new DefaultMapContext(crs);
}
- mp.setRenderer(renderer);
- mp.setContext(context);
+ //this allows us to listen for resize events and ask for the right size image
+ mp.addComponentListener(layer);
+ context.addLayer(layer);
+ context.addMapBoundsListener(layer);
+ // System.out.println(context.getLayerBounds());
+ // mp.setHighlightLayer(context.getLayer(0));
+ if (renderer == null) {
+ if (false) {
+ renderer = new StreamingRenderer();
+ HashMap hints = new HashMap();
+ hints.put("memoryPreloadingEnabled", Boolean.TRUE);
+ renderer.setRendererHints(hints);
+ } else {
+ renderer = new StreamingRenderer();
+ HashMap hints = new HashMap();
+ hints.put("memoryPreloadingEnabled", Boolean.FALSE);
+ renderer.setRendererHints(hints);
+ RenderingHints rhints = new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON );
+ ((StreamingRenderer)renderer).setJava2DHints(rhints);
+ }
+ mp.setRenderer(renderer);
+ mp.setContext(context);
+ }
// mp.getRenderer().addLayer(new RenderedMapScale());
frame.repaint();
frame.doLayout();
}
- public static URL aquireURL(String target) {
- if (new File(target).exists()) {
- try {
- return new File(target).toURL();
- } catch (MalformedURLException e) {
- }
- }
- try {
- return new URL(target);
- } catch (MalformedURLException e) {
- return null;
- }
- }
-
public void actionPerformed(ActionEvent e) {
WMSChooser wmc = new WMSChooser(frame, "Select WMS", true);
int returnVal = wmc.getLayer();
@@ -226,67 +226,12 @@
}
WebMapServer wms = wmc.getWms();
Layer l = (Layer) wmc.getLayers().get(returnVal);
- GetMapRequest mapRequest = wms.createGetMapRequest();
- mapRequest.addLayer(l);
-
- mapRequest.setDimensions(mp.getWidth(), mp.getHeight());
- mapRequest.setFormat("image/png");
- Set srs = l.getSrs();
- String crs;
- if (srs.contains("EPSG:4326")) {// really we should get the underlying map pane CRS
- crs = "EPSG:4326";
- } else {
- crs = (String) srs.iterator().next();
- }
- System.out.println("crs = " + crs);
- HashMap bboxes = l.getBoundingBoxes();
- Set keys = bboxes.keySet();
- String k="";
- for(Iterator it = keys.iterator();it.hasNext();k=(String)it.next()) {
- System.out.println(k+" -> "+bboxes.get(k));
- }
-
- CRSEnvelope bb = (CRSEnvelope) bboxes.get(crs);
- if (bb == null) {// something bad happened
- bb= l.getLatLonBoundingBox();
- bb.setEPSGCode("EPSG:4326"); // for some reason WMS doesn't set this.
-
- }
- // fix the bounds for the shape of the window.
-
- System.out.println(bb.toString());
- mapRequest.setBBox(bb);
-
- URL request = mapRequest.getFinalURL();
- System.out.println(request.toString());
+ WMSMapLayer layer = new WMSMapLayer(wms, l);
try {
-
- String type = request.openConnection().getContentType();
- if (type.equalsIgnoreCase("image/png")) {
- BufferedImage image = ImageIO.read(request.openStream());
- GridCoverageFactory gcf = new GridCoverageFactory();
- Envelope2D env = new Envelope2D(bb
- .getCoordinateReferenceSystem(), bb.getMinX(), bb
- .getMinY(), bb.getLength(0), bb.getLength(1));
- GridCoverage2D grid = gcf.create(l.getTitle(), image, env);
- load(grid);
- } else {
- System.out.println("error content type is " + type);
- if (type.startsWith("text")) {
- String line = "";
- BufferedReader br = new BufferedReader(
- new InputStreamReader(request.openStream()));
- while ((line = br.readLine()) != null) {
- System.out.println(line);
- }
- }
- }
- } catch (IOException e1) {
+ load(layer);
+ } catch (Exception e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
- } catch (Exception ex) {
- // TODO Auto-generated catch block
- ex.printStackTrace();
}
}
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