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PathLayer, VectorLayer (polygon) overlays touch events #316 #424 (#425)

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This commit is contained in:
Emux
2017-10-05 20:39:30 +03:00
committed by GitHub
parent 126b98ae8c
commit e3f2f19119
7 changed files with 150 additions and 7 deletions
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34
vtm-jts/src/org/oscim/layers/vector/PathLayer.java
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@@ -20,12 +20,16 @@
*/
package org.oscim.layers.vector;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.LineString;
import org.oscim.backend.CanvasAdapter;
import org.oscim.core.GeoPoint;
import org.oscim.core.Point;
import org.oscim.layers.vector.geometries.LineDrawable;
import org.oscim.layers.vector.geometries.Style;
import org.oscim.map.Map;
import org.oscim.utils.GeoPointUtils;
import org.oscim.utils.geom.GeomBuilder;
import java.util.ArrayList;
@@ -42,6 +46,9 @@ public class PathLayer extends VectorLayer {
protected Style mStyle;
protected LineDrawable mDrawable;
private final Point mPoint1 = new Point();
private final Point mPoint2 = new Point();
public PathLayer(Map map, Style style) {
super(map);
mStyle = style;
@@ -194,6 +201,12 @@ public class PathLayer extends VectorLayer {
remove(mDrawable);
mDrawable = new LineDrawable(path, mStyle);
add(mDrawable);
mPoints.clear();
for (int i = 0; i < path.getNumPoints(); i++) {
Coordinate c = path.getCoordinateN(i);
mPoints.add(new GeoPoint(c.y, c.x));
}
}
mWorker.submit(0);
}
@@ -204,8 +217,29 @@ public class PathLayer extends VectorLayer {
remove(mDrawable);
mDrawable = new LineDrawable(lonLat, mStyle);
add(mDrawable);
mPoints.clear();
for (int i = 0; i < lonLat.length; i += 2)
mPoints.add(new GeoPoint(lonLat[i + 1], lonLat[i]));
}
mWorker.submit(0);
}
@Override
public synchronized boolean contains(float x, float y) {
// Touch min 20 px at baseline mdpi (160dpi)
double distance = Math.max(20 / 2 * CanvasAdapter.getScale(), mStyle.strokeWidth);
for (int i = 0; i < mPoints.size() - 1; i++) {
if (i == 0)
mMap.viewport().toScreenPoint(mPoints.get(i), false, mPoint1);
else {
mPoint1.x = mPoint2.x;
mPoint1.y = mPoint2.y;
}
mMap.viewport().toScreenPoint(mPoints.get(i + 1), false, mPoint2);
if (GeoPointUtils.distanceSegmentPoint(mPoint1.x, mPoint1.y, mPoint2.x, mPoint2.y, x, y) <= distance)
return true;
}
return false;
}
}