Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/jfree/CollisionFreeXYTextAnnotation.java @ 3023:e19ff9086035
Avoid collisions between line labels.
flys-artifacts/trunk@4590 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
|---|---|
| date | Tue, 05 Jun 2012 15:03:11 +0000 |
| parents | 0b8c04c7f762 |
| children | 65b6e27c6f25 |
comparison
equal
deleted
inserted
replaced
| 3022:705d2058b682 | 3023:e19ff9086035 |
|---|---|
| 17 import org.jfree.chart.plot.Plot; | 17 import org.jfree.chart.plot.Plot; |
| 18 | 18 |
| 19 import org.jfree.text.TextUtilities; | 19 import org.jfree.text.TextUtilities; |
| 20 | 20 |
| 21 import org.jfree.ui.RectangleEdge; | 21 import org.jfree.ui.RectangleEdge; |
| 22 | |
| 23 import de.intevation.flys.jfree.JFreeUtil; | |
| 22 | 24 |
| 23 | 25 |
| 24 /** | 26 /** |
| 25 * Custom Annotations class that is drawn only if no collisions with other | 27 * Custom Annotations class that is drawn only if no collisions with other |
| 26 * already drawn CustomAnnotations in current plot are found. | 28 * already drawn CustomAnnotations in current plot are found. |
| 85 getRotationAngle(), getRotationAnchor()); | 87 getRotationAngle(), getRotationAnchor()); |
| 86 | 88 |
| 87 // Deviation from superclass: prevent collision. | 89 // Deviation from superclass: prevent collision. |
| 88 Rectangle2D hotspotBox = hotspot.getBounds2D(); | 90 Rectangle2D hotspotBox = hotspot.getBounds2D(); |
| 89 | 91 |
| 90 for (Iterator i = info.getOwner().getEntityCollection().iterator(); | 92 if (JFreeUtil.collides(hotspot, info.getOwner().getEntityCollection(), |
| 91 i.hasNext(); ) { | 93 XYAnnotationEntity.class)) { |
| 92 Object next = i.next(); | 94 return; |
| 93 // Collision with other stuff than XYAnnotations are okay. | |
| 94 if (next instanceof CollisionFreeXYTextAnnotationEntity) { | |
| 95 XYAnnotationEntity drawnShape = (XYAnnotationEntity) next; | |
| 96 if (drawnShape.getArea().intersects(hotspotBox)) { | |
| 97 // Found collision, early stop. | |
| 98 return; | |
| 99 } | |
| 100 } | |
| 101 } | 95 } |
| 102 | 96 |
| 103 if (this.getBackgroundPaint() != null) { | 97 if (this.getBackgroundPaint() != null) { |
| 104 g2.setPaint(this.getBackgroundPaint()); | 98 g2.setPaint(this.getBackgroundPaint()); |
| 105 g2.fill(hotspot); | 99 g2.fill(hotspot); |