Changeset 4627 in josm for trunk/src/org/openstreetmap/josm/gui/NavigatableComponent.java

Timestamp:

2011-12-03T00:14:54+01:00 (12 years ago)

Author:

Don-vip

Message:

Major performance improvements in multipolygons rendering

File:

• trunk/src/org/openstreetmap/josm/gui/NavigatableComponent.java (modified) (4 diffs)

trunk/src/org/openstreetmap/josm/gui/NavigatableComponent.java

@@ -7 +7 @@
 import java.awt.Point;
 import java.awt.Rectangle;
+import java.awt.geom.AffineTransform;
 import java.awt.geom.Point2D;
 import java.util.ArrayList;
@@ -61 +62 @@
     public static final IntegerProperty PROP_SNAP_DISTANCE = new IntegerProperty("mappaint.node.snap-distance", 10);
 
+    public static final String PROPNAME_CENTER = "center";
+    public static final String PROPNAME_SCALE  = "scale";
+    
     /**
      * the zoom listeners
@@ -229 +233 @@
     }
 
+    public AffineTransform getAffineTransform() {
+        return new AffineTransform(
+                1.0/scale, 0.0, 0.0, -1.0/scale, getWidth()/2.0 - center.east()/scale, getHeight()/2.0 + center.north()/scale);
+    }
+    
     /**
      * Return the point on the screen where this Coordinate would be.
@@ -335 +344 @@
             EastNorth oldCenter = center;
             center = newCenter;
-            firePropertyChange("center", oldCenter, newCenter);
+            firePropertyChange(PROPNAME_CENTER, oldCenter, newCenter);
         }
         if (scale != newScale) {
             double oldScale = scale;
             scale = newScale;
-            firePropertyChange("scale", oldScale, newScale);
+            firePropertyChange(PROPNAME_SCALE, oldScale, newScale);
         }