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https://github.com/eclipse-sailing-analytics/sailing-analytics.git
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Added overlay for capturing & displaying the start and end point of the race course.
This commit is contained in:
Nidhi Sawhney committed
1 parent
626c4a1d13
commit
07afbd1e87
1 file changed
+214
+214
@@ -0,0 +1,214 @@
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package com.sap.sailing.gwt.ui.simulator;
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import java.util.logging.Logger;
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import com.google.gwt.canvas.dom.client.Context2d;
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import com.google.gwt.event.dom.client.ClickEvent;
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import com.google.gwt.event.dom.client.ClickHandler;
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import com.google.gwt.event.dom.client.DoubleClickEvent;
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import com.google.gwt.event.dom.client.DoubleClickHandler;
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import com.google.gwt.maps.client.MapWidget;
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import com.google.gwt.maps.client.event.MapClickHandler;
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import com.google.gwt.maps.client.event.MapDoubleClickHandler;
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import com.google.gwt.maps.client.event.MapMouseMoveHandler;
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import com.google.gwt.maps.client.geom.LatLng;
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import com.google.gwt.maps.client.geom.Point;
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import com.google.gwt.maps.client.overlay.Marker;
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import com.google.gwt.maps.client.overlay.Overlay;
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import com.sap.sailing.gwt.ui.shared.racemap.CanvasOverlay;
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public class RaceCourseCanvasOverlay extends CanvasOverlay {
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private LatLng startPoint = null;
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private LatLng endPoint = null;
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private Marker startMarker = null;
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private Marker endMarker = null;
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private RaceCourseMapMouseMoveHandler raceCourseMapMouseMoveHandler = new RaceCourseMapMouseMoveHandler();
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private static Logger logger = Logger.getLogger("com.sap.sailing");
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class RaceCourseMapMouseMoveHandler implements MapMouseMoveHandler {
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@Override
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public void onMouseMove(MapMouseMoveEvent event) {
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if (startPoint != null) {
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Point s = getMap().convertLatLngToDivPixel(startPoint);
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drawPointWithText(s.getX(),s.getY(), "Start");
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refreshLine(event.getLatLng(), "Grey");
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}
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}
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}
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public RaceCourseCanvasOverlay() {
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super();
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}
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public void reset() {
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startPoint = null;
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endPoint = null;
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if (startMarker != null) {
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map.removeOverlay(startMarker);
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startMarker = null;
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}
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if (endMarker != null) {
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map.removeOverlay(endMarker);
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endMarker = null;
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}
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setCanvasSettings();
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canvas.setVisible(true);
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getMap().addMapMouseMoveHandler(raceCourseMapMouseMoveHandler);
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getPane().setWidgetPosition(getCanvas(), 0, 0);
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}
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public boolean isCourseSet() {
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return startPoint != null && endPoint != null;
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}
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private void setStartEndPoint(LatLng startPoint, LatLng endPoint) {
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setStartPoint(startPoint);
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setEndPoint(endPoint);
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}
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private void setStartPoint(LatLng startPoint) {
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if (this.startPoint == null) {
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//setCanvasSettings();
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}
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this.startPoint = startPoint;
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if (startMarker != null) {
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map.removeOverlay(startMarker);
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}
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if (startPoint != null) {
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Point point = getMap().convertLatLngToDivPixel(startPoint);
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drawPointWithText(point.getX(),point.getY(),"Start");
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startMarker = new Marker(startPoint);
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map.addOverlay(startMarker);
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}
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}
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private void setEndPoint(LatLng endPoint) {
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this.endPoint = endPoint;
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if (endMarker != null) {
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map.removeOverlay(endMarker);
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}
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if (endPoint != null) {
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Point point = getMap().convertLatLngToDivPixel(endPoint);
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drawPointWithText(point.getX(),point.getY(),"End");
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endMarker = new Marker(endPoint);
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map.addOverlay(endMarker);
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}
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}
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private void setCanvasSettings() {
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int canvasWidth = getMap().getSize().getWidth();
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int canvasHeight = getMap().getSize().getHeight();
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canvas.setWidth(String.valueOf(canvasWidth));
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canvas.setHeight(String.valueOf(canvasHeight));
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canvas.setCoordinateSpaceWidth(canvasWidth);
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canvas.setCoordinateSpaceHeight(canvasHeight);
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//getPane().setWidgetPosition(getCanvas(), 0, 0);
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}
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@Override
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protected Overlay copy() {
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return new RaceCourseCanvasOverlay();
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}
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@Override
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protected void initialize(MapWidget map) {
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logger.info("In RaceCourseCanvasOverlay.initialize");
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super.initialize(map);
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getMap().addMapClickHandler(new MapClickHandler() {
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@Override
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public void onClick(MapClickEvent event) {
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if (startPoint == null) {
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startPoint = event.getLatLng();
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logger.info("Clicked startPoint here " + startPoint);
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setStartPoint(startPoint);
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}
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}
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});
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getMap().addMapDoubleClickHandler(new MapDoubleClickHandler() {
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@Override
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public void onDoubleClick(MapDoubleClickEvent event) {
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endPoint = event.getLatLng();
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logger.info("Clicked endPoint " + "here " + endPoint);
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if (endPoint != null) {
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setEndPoint(endPoint);
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getMap().removeMapMouseMoveHandler(raceCourseMapMouseMoveHandler);
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//setSelected(false);
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//canvas.setEnabled(false);
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}
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}
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});
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//raceCourseMapMouseMoveHandler = new RaceCourseMapMouseMoveHandler();
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getMap().addMapMouseMoveHandler(raceCourseMapMouseMoveHandler);
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}
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@Override
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protected void redraw(boolean force) {
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if (startPoint != null && endPoint != null) {
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logger.info("In RaceCourseCanvasOverlay.redraw");
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setCanvasSettings();
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setStartEndPoint(startPoint,endPoint);
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drawLine(endPoint, "White");
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getPane().setWidgetPosition(getCanvas(), 0, 0);
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}
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}
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private void drawPoint(double x, double y) {
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Context2d context2d = canvas.getContext2d();
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context2d.setStrokeStyle("Red");
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context2d.setLineWidth(3);
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context2d.moveTo(x, y);
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context2d.lineTo(x, y);
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context2d.closePath();
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context2d.stroke();
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}
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private void drawPointWithText(double x, double y, String text) {
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Context2d context2d = canvas.getContext2d();
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drawPoint(x, y);
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context2d.setFillStyle("Black");
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context2d.fillText(text, x, y);
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}
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/*
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* Draw a line on the canvas from the startPoint to current point given by mouse location
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* with a canvas refresh
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*/
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private void refreshLine(LatLng currentPoint, String color) {
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setCanvasSettings();
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drawLine(currentPoint, color);
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getPane().setWidgetPosition(getCanvas(), 0, 0);
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}
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private void drawLine(LatLng currentPoint, String color) {
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if (startPoint != null) {
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Point s = map.convertLatLngToDivPixel(startPoint);
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Context2d context2d = canvas.getContext2d();
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context2d.setStrokeStyle(color);
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context2d.moveTo(s.getX(), s.getY());
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Point e = map.convertLatLngToDivPixel(currentPoint);
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context2d.lineTo(e.getX(), e.getY());
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context2d.closePath();
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context2d.stroke();
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}
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}
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}
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