Source Code Cross Referenced for MapBoxPrinter.java in  » GIS » udig-1.1 » net » refractions » udig » printing » model » impl » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » udig 1.1 » net.refractions.udig.printing.model.impl 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* uDig - User Friendly Desktop Internet GIS client
002:         * http://udig.refractions.net
003:         * (C) 2004, Refractions Research Inc.
004:         *
005:         * This library is free software; you can redistribute it and/or
006:         * modify it under the terms of the GNU Lesser General Public
007:         * License as published by the Free Software Foundation;
008:         * version 2.1 of the License.
009:         *
010:         * This library is distributed in the hope that it will be useful,
011:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
012:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013:         * Lesser General Public License for more details.
014:         */
015:        package net.refractions.udig.printing.model.impl;
016:
017:        import java.awt.Color;
018:        import java.awt.Graphics2D;
019:        import java.awt.geom.Rectangle2D;
020:        import java.awt.image.BufferedImage;
021:        import java.util.Iterator;
022:        import java.util.List;
023:        import java.util.SortedSet;
024:        import java.util.TreeSet;
025:
026:        import net.refractions.udig.printing.model.AbstractBoxPrinter;
027:        import net.refractions.udig.printing.model.PrintingModelPlugin;
028:        import net.refractions.udig.printing.model.internal.Messages;
029:        import net.refractions.udig.project.ILayer;
030:        import net.refractions.udig.project.IMap;
031:        import net.refractions.udig.project.IMapCompositionListener;
032:        import net.refractions.udig.project.IMapListener;
033:        import net.refractions.udig.project.IProject;
034:        import net.refractions.udig.project.MapCompositionEvent;
035:        import net.refractions.udig.project.MapEvent;
036:        import net.refractions.udig.project.internal.Map;
037:        import net.refractions.udig.project.internal.render.CompositeRenderContext;
038:        import net.refractions.udig.project.internal.render.RenderContext;
039:        import net.refractions.udig.project.internal.render.RenderFactory;
040:        import net.refractions.udig.project.internal.render.RenderManager;
041:        import net.refractions.udig.project.internal.render.Renderer;
042:        import net.refractions.udig.project.internal.render.RendererCreator;
043:        import net.refractions.udig.project.internal.render.ViewportModel;
044:        import net.refractions.udig.project.internal.render.impl.RenderContextImpl;
045:        import net.refractions.udig.project.internal.render.impl.RendererCreatorImpl;
046:        import net.refractions.udig.project.render.IViewportModel;
047:        import net.refractions.udig.project.render.IViewportModelListener;
048:        import net.refractions.udig.project.render.RenderException;
049:        import net.refractions.udig.project.render.ViewportModelEvent;
050:        import net.refractions.udig.project.render.displayAdapter.IMapDisplay;
051:        import net.refractions.udig.project.render.displayAdapter.MapDisplayEvent;
052:        import net.refractions.udig.project.ui.ApplicationGIS;
053:
054:        import org.eclipse.core.runtime.IAdaptable;
055:        import org.eclipse.core.runtime.IProgressMonitor;
056:        import org.eclipse.draw2d.geometry.Dimension;
057:        import org.eclipse.emf.common.util.URI;
058:        import org.eclipse.emf.ecore.util.EcoreUtil;
059:        import org.eclipse.jface.util.PropertyChangeEvent;
060:        import org.eclipse.ui.IMemento;
061:        import org.opengis.referencing.crs.CoordinateReferenceSystem;
062:
063:        import com.vividsolutions.jts.geom.Envelope;
064:
065:        /**
066:         * Box Printer for MapBox objects.
067:         * 
068:         * @author Jesse
069:         * @since 1.1.0
070:         */
071:        public class MapBoxPrinter extends AbstractBoxPrinter implements 
072:                IAdaptable {
073:            Map map;
074:
075:            IMapCompositionListener layerListener = new IMapCompositionListener() {
076:
077:                public void changed(MapCompositionEvent event) {
078:                    getBox()
079:                            .notifyPropertyChange(
080:                                    new PropertyChangeEvent(
081:                                            MapBoxPrinter.this ,
082:                                            "layers", event.getOldValue(), event.getNewValue())); //$NON-NLS-1$
083:                }
084:
085:            };
086:
087:            IViewportModelListener viewportListener = new IViewportModelListener() {
088:
089:                public void changed(ViewportModelEvent event) {
090:                    getBox()
091:                            .notifyPropertyChange(
092:                                    new PropertyChangeEvent(
093:                                            MapBoxPrinter.this ,
094:                                            "viewport", event.getOldValue(), event.getNewValue())); //$NON-NLS-1$
095:                }
096:            };
097:
098:            IMapListener mapListener = new IMapListener() {
099:
100:                public void changed(MapEvent event) {
101:                    switch (event.getType()) {
102:                    case VIEWPORT_MODEL:
103:                        if (event.getNewValue() != null) {
104:                            ((ViewportModel) event.getNewValue())
105:                                    .addViewportModelListener(viewportListener);
106:                        }
107:                        if (event.getOldValue() != null) {
108:                            ((ViewportModel) event.getOldValue())
109:                                    .removeViewportModelListener(viewportListener);
110:                        }
111:                        break;
112:
113:                    default:
114:                        break;
115:                    }
116:                }
117:
118:            };
119:
120:            public Map getMap() {
121:                return map;
122:            }
123:
124:            @SuppressWarnings("unchecked")
125:            public void setMap(IMap map2) {
126:                Map oldMap = map;
127:                if (oldMap != null) {
128:                    oldMap.removeMapCompositionListener(layerListener);
129:                    oldMap.getViewportModel().removeViewportModelListener(
130:                            viewportListener);
131:                    oldMap.removeMapListener(mapListener);
132:                }
133:                this .map = (Map) map2;
134:                if (map != null) {
135:                    map.addMapCompositionListener(layerListener);
136:                    map.getViewportModel().addViewportModelListener(
137:                            viewportListener);
138:                    map.addMapListener(mapListener);
139:                }
140:            }
141:
142:            public void draw(Graphics2D graphics, IProgressMonitor monitor) {
143:                try {
144:                    drawInternal(graphics, monitor);
145:                } catch (RenderException e) {
146:                    PrintingModelPlugin.log(null, e);
147:                }
148:            }
149:
150:            private void drawInternal(Graphics2D graphics,
151:                    IProgressMonitor monitor) throws RenderException {
152:                if (map == null) {
153:                    drawErrorMessage(graphics,
154:                            Messages.MapBoxPrinter_no_map_set);
155:                    return;
156:                }
157:
158:                Map map = (Map) EcoreUtil.copy(this .map);
159:                final Dimension size = getBox().getSize();
160:                PrintingModelPlugin
161:                        .trace("MapBoxImpl.draw() beginning rendering of map '" + map.getName() + "'"); //$NON-NLS-1$ //$NON-NLS-2$
162:
163:                RenderManager manager = RenderFactory.eINSTANCE
164:                        .createRenderManagerViewer();
165:
166:                RenderContext tools = new RenderContextImpl();
167:                tools.setMapInternal(map);
168:                tools.setRenderManagerInternal(manager);
169:
170:                PrintingModelPlugin
171:                        .trace("Firing size changed event. Changing to size: " + size.width + " by " + size.height); //$NON-NLS-1$ //$NON-NLS-2$
172:
173:                manager.setMapInternal(map);
174:                manager.setMapDisplay(new IMapDisplay() {
175:                    public java.awt.Dimension getDisplaySize() {
176:                        return new java.awt.Dimension(size.width, size.height);
177:                    }
178:
179:                    public int getWidth() {
180:                        return size.width;
181:                    }
182:
183:                    public int getHeight() {
184:                        return size.height;
185:                    }
186:
187:                    public int getDPI() {
188:                        // XXX What should this be Richard?
189:                        return 72;
190:                    }
191:                });
192:
193:                ViewportModel model = RenderFactory.eINSTANCE
194:                        .createViewportModel();
195:
196:                manager.setViewportModelInternal(model);
197:
198:                model.setCRS(map.getViewportModel().getCRS());
199:                model.zoomToBox(map.getViewportModel().getBounds());
200:
201:                PrintingModelPlugin
202:                        .trace("Using bounds: " + map.getViewportModel().getBounds()); //$NON-NLS-1$
203:
204:                model.setMapInternal(map);
205:
206:                model.sizeChanged(new MapDisplayEvent(null,
207:                        new java.awt.Dimension(0, 0), new java.awt.Dimension(
208:                                size.width, size.height)));
209:
210:                RendererCreator decisive = new RendererCreatorImpl();
211:                decisive.setContext(tools);
212:
213:                decisive.getLayers().addAll(this .map.getLayersInternal());
214:
215:                SortedSet<RenderContext> sortedContexts = new TreeSet<RenderContext>(
216:                        decisive.getConfiguration());
217:
218:                Iterator iter = sortedContexts.iterator();
219:                while (iter.hasNext()) {
220:                    RenderContext context = (RenderContext) iter.next();
221:                    if (context instanceof  CompositeRenderContext) {
222:                        CompositeRenderContext compositeContext = (CompositeRenderContext) context;
223:                        List<ILayer> layers = compositeContext.getLayers();
224:                        boolean visible = false;
225:                        for (ILayer layer : layers) {
226:                            visible = layer.isVisible();
227:                        }
228:                        if (!visible)
229:                            continue;
230:                    } else if (!context.getLayer().isVisible())
231:                        continue;
232:                    Renderer renderer = decisive.getRenderer(context);
233:                    PrintingModelPlugin
234:                            .trace("Issuing render call to " + renderer.getName()); //$NON-NLS-1$
235:                    renderer.render(graphics, monitor);
236:                }
237:            }
238:
239:            BufferedImage preview;
240:            State current;
241:
242:            public void createPreview(Graphics2D graphics,
243:                    final IProgressMonitor monitor) {
244:                Dimension size = getBox().getSize();
245:                preview = new BufferedImage(size.width, size.height,
246:                        BufferedImage.TYPE_INT_ARGB);
247:                final Graphics2D g = preview.createGraphics();
248:
249:                try {
250:                    drawInternal(g, monitor);
251:                } catch (Exception e) {
252:                    PrintingModelPlugin.log("", e); //$NON-NLS-1$
253:                    String message = "Error rendering Map:  " + e.getMessage(); //$NON-NLS-1$
254:                    drawErrorMessage(g, message);
255:                }
256:                g.dispose();
257:                if (map != null)
258:                    current = new State(map.getViewportModel(), getBox()
259:                            .getSize());
260:                graphics.drawImage(preview, 0, 0, size.width, size.height, 0,
261:                        0, preview.getWidth(), preview.getHeight(), null);
262:            }
263:
264:            private void drawErrorMessage(Graphics2D g, String message) {
265:                Dimension size = getBox().getSize();
266:                g.setColor(Color.YELLOW);
267:                Rectangle2D bounds = g.getFontMetrics().getStringBounds(
268:                        message, g);
269:                g.fillRect((int) (size.width / 2 - bounds.getWidth() / 2) - 2,
270:                        (int) (size.height / 2 - bounds.getHeight() / 2) + 2,
271:                        (int) bounds.getWidth() + 4,
272:                        (int) bounds.getHeight() + 4);
273:                g.setColor(Color.BLACK);
274:                g.drawString(message,
275:                        (int) (size.width / 2 - bounds.getWidth() / 2),
276:                        (int) (size.height / 2 + bounds.getHeight() / 2));
277:            }
278:
279:            static class State {
280:                private double aspectRatio;
281:
282:                public State(IViewportModel viewportModel, Dimension size) {
283:                    bounds = viewportModel.getBounds();
284:                    crs = viewportModel.getCRS();
285:                    this .aspectRatio = (double) size.height
286:                            / (double) size.width;
287:                }
288:
289:                Envelope bounds;
290:                CoordinateReferenceSystem crs;
291:            }
292:
293:            public boolean isNewPreviewNeeded() {
294:                final Dimension size = getBox().getSize();
295:                double aspectRatio = (double) size.height / (double) size.width;
296:                return preview == null
297:                        || current == null
298:                        || !current.bounds.equals(map.getViewportModel()
299:                                .getBounds())
300:                        || current.crs != map.getViewportModel().getCRS()
301:                        || Math.abs(current.aspectRatio - aspectRatio) > 0.00001;
302:            }
303:
304:            public void save(IMemento memento) {
305:                System.out.println(map.getID());
306:                memento.putString("mapId", map.getID().toString()); //$NON-NLS-1$
307:                memento.putString(
308:                        "projectId", map.getProject().getID().toString()); //$NON-NLS-1$
309:            }
310:
311:            public void load(IMemento value) {
312:                URI mapId = URI.createURI(value.getString("mapId")); //$NON-NLS-1$
313:                URI projectId = URI.createURI(value.getString("projectId")); //$NON-NLS-1$
314:
315:                List<? extends IProject> projects = ApplicationGIS
316:                        .getProjects();
317:
318:                for (IProject project : projects) {
319:                    if (project.getID().equals(projectId)) {
320:                        List<IMap> maps = project.getElements(IMap.class);
321:                        for (IMap map : maps) {
322:                            if (map.getID().equals(mapId)) {
323:                                setMap(map);
324:                                break;
325:                            }
326:                        }
327:                    }
328:                }
329:            }
330:
331:            public String getExtensionPointID() {
332:                return "net.refractions.udig.printing.ui.standardBoxes"; //$NON-NLS-1$
333:            }
334:
335:            @SuppressWarnings("unchecked")
336:            public Object getAdapter(Class adapter) {
337:                if (adapter.isAssignableFrom(Map.class)) {
338:                    return this.map;
339:                }
340:                return null;
341:            }
342:
343:        }
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