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1
8 package com.nightlabs.editor2d.edit;
9
10 import java.beans.PropertyChangeEvent  ;
11 import java.beans.PropertyChangeListener ;
12 import java.util.Iterator ;
13
14 import org.apache.log4j.Logger;
15 import org.eclipse.draw2d.IFigure;
16 import org.eclipse.draw2d.geometry.Rectangle;
17 import org.eclipse.gef.EditPart;
18 import org.eclipse.gef.GraphicalEditPart;
19 import org.eclipse.gef.Request;
20 import org.eclipse.gef.RootEditPart;
21 import org.eclipse.gef.editparts.AbstractGraphicalEditPart;
22 import org.eclipse.gef.editparts.ZoomManager;
23 import org.eclipse.ui.views.properties.IPropertySource;
24
25 import com.nightlabs.editor2d.DrawComponent;
26 import com.nightlabs.editor2d.figures.DrawComponentFigure;
27 import com.nightlabs.editor2d.figures.RendererFigure;
28 import com.nightlabs.editor2d.model.DrawComponentPropertySource;
29 import com.nightlabs.editor2d.request.EditorRequestConstants;
30 import com.nightlabs.editor2d.util.EditorUtil;
31 import com.nightlabs.editor2d.util.J2DUtil;
32
33 public abstract class AbstractDrawComponentEditPart
34 extends AbstractGraphicalEditPart
35 implements EditorRequestConstants
36 {
37 public static final Logger LOGGER = Logger.getLogger(AbstractDrawComponentEditPart.class);
38
39 protected IPropertySource propertySource = null;
40
41 public AbstractDrawComponentEditPart(DrawComponent drawComponent)
42 {
43 setModel(drawComponent);
44 }
45
46 protected IFigure createFigure()
51 {
52 DrawComponentFigure figure = new DrawComponentFigure();
53 figure.setDrawComponent(getDrawComponent());
54 addRenderer(figure);
55 addZoomListener(figure);
56 return figure;
57 }
58
59 protected void addRenderer(DrawComponentFigure figure)
60 {
61 if (getDrawComponent().getRenderer() != null) {
63 figure.setRenderer(getDrawComponent().getRenderer());
64 }
65 else {
66 if (getModelRoot() != null) {
67 getDrawComponent().setRenderModeManager(getModelRoot().getMultiLayerDrawComponent().getRenderModeManager());
68 }
69 }
70 }
71
72 public MultiLayerDrawComponentEditPart getModelRoot()
73 {
74 if (getRoot() instanceof MultiLayerDrawComponentEditPart) {
75 return (MultiLayerDrawComponentEditPart) getRoot();
76 }
77 else {
78 for (Iterator it = getRoot().getChildren().iterator(); it.hasNext(); ) {
79 Object o = it.next();
80 if (o instanceof MultiLayerDrawComponentEditPart) {
81 return (MultiLayerDrawComponentEditPart) o;
82 }
83 }
84 }
85 return null;
86 }
87
88 protected void addZoomListener(DrawComponentFigure figure)
89 {
90 ZoomManager zoomManager = EditorUtil.getZoomManager(this);
91 if (zoomManager != null) {
92 zoomManager.addZoomListener(figure.getZoomListener());
93 }
94 }
95
96 protected RendererFigure getRendererFigure()
97 {
98 return (RendererFigure) getFigure();
99 }
100
103 protected abstract void createEditPolicies();
104
105
108 public void activate()
109 {
110 if (isActive())
111 return;
112
113 hookIntoDrawComponent(getDrawComponent());
115
116 super.activate();
117 }
118
119
122 public void deactivate()
123 {
124 if (!isActive())
125 return;
126
127 unhookFromDrawComponent(getDrawComponent());
129
130 super.deactivate();
131 }
132
133 public DrawComponent getDrawComponent() {
134 return (DrawComponent) getModel();
135 }
136
137 protected void refreshVisuals()
138 {
139 Rectangle r = new Rectangle(J2DUtil.toDraw2D(getDrawComponent().getBounds()));
140
141 ((GraphicalEditPart) getParent()).setLayoutConstraint(
142 this,
143 getFigure(),
144 r);
145
146 if (getFigure() instanceof DrawComponentFigure) {
147 getRendererFigure().setRenderer(getDrawComponent().getRenderer());
148 getRendererFigure().setDrawComponent(getDrawComponent());
149 }
150 updateLayer();
151 }
152
153 public void updateLayer()
154 {
155 LayerEditPart layerEditPart = getLayerEditPart();
156 if (layerEditPart != null)
157 layerEditPart.getBufferedFreeformLayer().refresh();
158
159 }
161
162 protected LayerEditPart getLayerEditPart()
163 {
164 EditPart parent = getParent();
165 if (parent == null)
166 throw new IllegalStateException ("Member parent may not be null for DrawComponent"+this.toString());
167
168 if (this instanceof LayerEditPart)
169 return (LayerEditPart) this;
170 if (this instanceof MultiLayerDrawComponentEditPart)
171 return null;
172 if (this instanceof RootEditPart)
173 return null;
174 if (parent instanceof LayerEditPart)
175 return (LayerEditPart) parent;
176
177 while (!(parent instanceof LayerEditPart)) {
178 parent = parent.getParent();
179 }
180 return (LayerEditPart) parent;
181 }
182
183
186 public Object getAdapter(Class key)
187 {
188
192 if (IPropertySource.class == key)
193 {
194 return getPropertySource();
195 }
196 return super.getAdapter(key);
197 }
198
199
202 protected IPropertySource getPropertySource()
203 {
204 if (propertySource == null)
205 {
206 propertySource =
207 new DrawComponentPropertySource(getDrawComponent());
208 }
209 return propertySource;
210 }
211
212 protected PropertyChangeListener listener = new PropertyChangeListener (){
213 public void propertyChange(PropertyChangeEvent evt) {
214 propertyChanged(evt);
215 }
216 };
217
218 protected void propertyChanged(PropertyChangeEvent evt)
219 {
220 String propertyName = evt.getPropertyName();
221
222 if (propertyName.equals(DrawComponent.PROP_BOUNDS)) {
223 LOGGER.debug(propertyName+"changed!");
224 refreshVisuals();
225 }
226 else if (propertyName.equals(DrawComponent.PROP_HEIGHT)) {
227 LOGGER.debug(propertyName+"changed!");
228 refreshVisuals();
229 }
230 else if (propertyName.equals(DrawComponent.PROP_WIDTH)) {
231 LOGGER.debug(propertyName+"changed!");
232 refreshVisuals();
233 }
234 else if (propertyName.equals(DrawComponent.PROP_X)) {
235 LOGGER.debug(propertyName+"changed!");
236 refreshVisuals();
237 }
238 else if (propertyName.equals(DrawComponent.PROP_Y)) {
239 LOGGER.debug(propertyName+"changed!");
240 refreshVisuals();
241 }
242 else if (propertyName.equals(DrawComponent.PROP_ROTATION)) {
243 LOGGER.debug(propertyName+"changed!");
244 refreshVisuals();
245 }
246 else if (propertyName.equals(DrawComponent.PROP_ROTATION_X)) {
247 LOGGER.debug(propertyName+"changed!");
248 refreshVisuals();
249 }
250 else if (propertyName.equals(DrawComponent.PROP_ROTATION_Y)) {
251 LOGGER.debug(propertyName+"changed!");
252 refreshVisuals();
253 }
254 else if (propertyName.equals(DrawComponent.PROP_RENDER_MODE)) {
255 LOGGER.debug(propertyName+"changed!");
256 refreshVisuals();
257 }
258 }
259
260
267 protected void hookIntoDrawComponent(DrawComponent element)
268 {
269 if (element != null)
270 element.addPropertyChangeListener(listener);
271 }
272
273
280 protected void unhookFromDrawComponent(DrawComponent element)
281 {
282 if (element != null)
283 element.removePropertyChangeListener(listener);
284 }
285
286 public boolean understandsRequest(Request req)
287 {
288 if (req.getType().equals(REQ_ROTATE))
289 return true;
290
291 else if (req.getType().equals(REQ_EDIT_ROTATE_CENTER))
292 return true;
293
294 else if (req.getType().equals(REQ_SHEAR))
295 return true;
296
297 return super.understandsRequest(req);
298 }
299 }
300
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