/**
* @param x
* @param y
* @param finish
*/
private void rubberBand(float x, float y, boolean finish) {
// Rubberbanding
if (mDragPlanPoint >= 0 && mService.getPlan() != null) {
// Threshold for movement
float movementx = Math.abs(x - mDragStartedX);
float movementy = Math.abs(y - mDragStartedY);
if ((movementx > MOVEMENT_THRESHOLD * mDipToPix)
|| (movementy > MOVEMENT_THRESHOLD * mDipToPix)) {
/*
* Do something to plan
* This is the new location
*/
double lon = mOrigin.getLongitudeOf(x);
double lat = mOrigin.getLatitudeOf(y);
mService.getPlan().replaceDestination(mPref, mDragPlanPoint, lon, lat, finish);
// This will not snap again
mDragStartedX = -1000;
mDragStartedY = -1000;
}
}
}
/*
* Determine if shape belong to a screen based on Screen longitude and latitude
* and shape max/min longitude latitude
*/
public static boolean isOnScreen(Origin origin, double lat, double lon) {
double maxLatScreen = origin.getLatScreenTop();
double minLatScreen = origin.getLatScreenBot();
double minLonScreen = origin.getLonScreenLeft();
double maxLonScreen = origin.getLonScreenRight();
boolean isInLat = lat < maxLatScreen && lat > minLatScreen;
boolean isInLon = lon < maxLonScreen && lon > minLonScreen;
return isInLat && isInLon;
}
/**
* * Draw the edge distance markers if configured to do so
*
* @param canvas what to draw them on
*/
private void drawEdgeMarkers(Canvas canvas) {
if (mPref.isShowEdgeTape()) {
if (mPointProjection == null) {
int x = (int) (mOrigin.getOffsetX(mGpsParams.getLongitude()));
int y = (int) (mOrigin.getOffsetY(mGpsParams.getLatitude()));
float pixPerNm = mOrigin.getPixelsInNmAtLatitude(1, mGpsParams.getLatitude());
mService
.getEdgeTape()
.draw(
canvas,
mScale,
pixPerNm,
x,
y,
(int) mService.getInfoLines().getHeight(),
getWidth(),
getHeight());
}
}
}
private void startClosestAirportTask(double x, double y) {
// We won't be doing the airport long press under certain circumstances
if (mDraw) {
return;
}
if (null != mClosestTask) {
mClosestTask.cancel(true);
}
mLongTouchDestination = null;
mClosestTask = new ClosestAirportTask();
double lon2, lat2;
if (mPref.isTrackUp()) {
double c_x = mOrigin.getOffsetX(mGpsParams.getLongitude());
double c_y = mOrigin.getOffsetY(mGpsParams.getLatitude());
double thetab = mGpsParams.getBearing();
double p[];
p = Helper.rotateCoord(c_x, c_y, thetab, x, y);
lon2 = mOrigin.getLongitudeOf(p[0]);
lat2 = mOrigin.getLatitudeOf(p[1]);
} else {
lon2 = mOrigin.getLongitudeOf(x);
lat2 = mOrigin.getLatitudeOf(y);
}
mClosestTask.execute(lon2, lat2);
}
/** @param canvas Does pretty much all drawing on screen */
private void drawMap(Canvas canvas) {
if (mService == null) {
return;
}
// If our track is supposed to be at the top, save the current
// canvas and rotate it based upon our bearing if we have one
boolean bRotated = false;
if (mPref.isTrackUp() && (mGpsParams != null)) {
bRotated = true;
canvas.save();
/*
* Rotate around current position
*/
float x = (float) mOrigin.getOffsetX(mGpsParams.getLongitude());
float y = (float) mOrigin.getOffsetY(mGpsParams.getLatitude());
canvas.rotate(-(int) mGpsParams.getBearing(), x, y);
}
DrawingContext ctx = new DrawingContext();
ctx.service = mService;
ctx.canvas = canvas;
ctx.context = mContext;
ctx.dip2pix = mDipToPix;
ctx.movement = mMovement;
ctx.origin = mOrigin;
ctx.paint = mPaint;
ctx.textPaint = mMsgPaint;
ctx.scale = mScale;
ctx.pan = mPan;
ctx.pref = mPref;
ctx.runwayPaint = mRunwayPaint;
ctx.view = this;
// Call the draw routines for the items that rotate with
// the chart
drawTiles(canvas, ctx);
drawLayers(canvas, ctx);
drawDrawing(canvas, ctx);
drawCapGrids(canvas, ctx);
drawTraffic(canvas, ctx);
drawTFR(canvas, ctx);
drawGameTFRs(ctx);
drawShapes(canvas, ctx);
drawAirSigMet(canvas, ctx);
drawTracks(canvas, ctx);
drawTrack(canvas, ctx);
drawRunways(canvas, ctx);
drawAircraft(canvas, ctx);
drawUserDefinedWaypoints(canvas, ctx);
// Restore the canvas to be upright again
if (true == bRotated) {
canvas.restore();
}
// Now draw the items that do NOT rotate with the chart
drawDistanceRings(canvas);
drawCDI(canvas);
drawVASI(canvas);
drawStatusLines(canvas);
drawEdgeMarkers(canvas); // Must be after the infolines
drawNavComments(canvas);
}
/* (non-Javadoc)
* @see com.ds.avare.MultiTouchController.MultiTouchObjectCanvas#setPositionAndScale(java.lang.Object, com.ds.avare.MultiTouchController.PositionAndScale, com.ds.avare.MultiTouchController.PointInfo)
*/
public boolean setPositionAndScale(
Object obj, PositionAndScale newObjPosAndScale, PointInfo touchPoint) {
touchPointChanged(touchPoint);
if (false == mCurrTouchPoint.isMultiTouch()) {
/*
* Do not move on drag
*/
if (mDragPlanPoint >= 0) {
return true;
}
/*
* Do not move on multitouch
*/
if (mDraw && mService != null) {
float x = mCurrTouchPoint.getX() * mScale.getScaleFactor();
float y = mCurrTouchPoint.getY() * mScale.getScaleFactor();
/*
* Threshold the drawing so we do not generate too many points
*/
if (mPref.isTrackUp()) {
double thetab = mGpsParams.getBearing();
double p[] = new double[2];
double c_x = mOrigin.getOffsetX(mGpsParams.getLongitude());
double c_y = mOrigin.getOffsetY(mGpsParams.getLatitude());
p = Helper.rotateCoord(c_x, c_y, thetab, x, y);
mService.getDraw().addPoint((float) p[0], (float) p[1], mOrigin);
} else {
mService.getDraw().addPoint(x, y, mOrigin);
}
return true;
}
// Pan
if (mPan.setMove(newObjPosAndScale.getXOff(), newObjPosAndScale.getYOff())) {
/*
* Query when we have moved one tile. This will happen in background.
*/
loadTiles();
}
} else {
// Zooming does not change drag
mDragPlanPoint = -1;
/*
* on double touch find distance and bearing between two points.
*/
if (mPointProjection == null) {
double x0 = mCurrTouchPoint.getXs()[0];
double y0 = mCurrTouchPoint.getYs()[0];
double x1 = mCurrTouchPoint.getXs()[1];
double y1 = mCurrTouchPoint.getYs()[1];
double lon0, lat0, lon1, lat1;
// convert to origin coord if Trackup
if (mPref.isTrackUp()) {
double c_x = mOrigin.getOffsetX(mGpsParams.getLongitude());
double c_y = mOrigin.getOffsetY(mGpsParams.getLatitude());
double thetab = mGpsParams.getBearing();
double p0[], p1[];
p0 = Helper.rotateCoord(c_x, c_y, thetab, x0, y0);
p1 = Helper.rotateCoord(c_x, c_y, thetab, x1, y1);
lon0 = mOrigin.getLongitudeOf(p0[0]);
lat0 = mOrigin.getLatitudeOf(p0[1]);
lon1 = mOrigin.getLongitudeOf(p1[0]);
lat1 = mOrigin.getLatitudeOf(p1[1]);
} else {
lon0 = mOrigin.getLongitudeOf(x0);
lat0 = mOrigin.getLatitudeOf(y0);
lon1 = mOrigin.getLongitudeOf(x1);
lat1 = mOrigin.getLatitudeOf(y1);
}
mPointProjection = new Projection(lon0, lat0, lon1, lat1);
}
/*
* Clamp scaling.
*/
mScale.setScaleFactor(newObjPosAndScale.getScale());
}
updateCoordinates();
invalidate();
return true;
}
/* (non-Javadoc)
* @see android.view.View.OnTouchListener#onTouch(android.view.View, android.view.MotionEvent)
*/
@Override
public boolean onTouch(View view, MotionEvent e) {
boolean bPassToGestureDetector = true;
if (e.getAction() == MotionEvent.ACTION_UP) {
/** Rubberbanding */
rubberBand(e.getX(), e.getY(), true);
/*
* Drag stops for rubber band
*/
mDragPlanPoint = -1;
/*
* Do not draw point. Only when long press and down.
*/
mPointProjection = null;
/*
* Now that we have moved passed the macro level, re-query for new tiles.
* Do not query repeatedly hence check for mFactor = 1
*/
if (mMacro != mScale.getMacroFactor()) {
loadTiles();
}
} else if (e.getAction() == MotionEvent.ACTION_DOWN) {
if (mService != null) {
/*
* Find if this is close to a plan point. Do rubber banding if true
* This is where rubberbanding starts
*/
if (mService.getPlan() != null && mDragPlanPoint < 0 && mPref.allowRubberBanding()) {
double lon = mOrigin.getLongitudeOf(e.getX());
double lat = mOrigin.getLatitudeOf(e.getY());
mDragPlanPoint = mService.getPlan().findClosePointId(lon, lat, mScale.getScaleFactor());
mDragStartedX = e.getX();
mDragStartedY = e.getY();
}
}
mGestureCallBack.gestureCallBack(GestureInterface.TOUCH, (LongTouchDestination) null);
// Remember this point so we can make sure we move far enough before losing the long press
mDoCallbackWhenDone = false;
mDownFocusPoint = getFocusPoint(e);
startClosestAirportTask(e.getX(), e.getY());
} else if (e.getAction() == MotionEvent.ACTION_MOVE) {
if (mDownFocusPoint != null) {
Point fp = getFocusPoint(e);
final int deltaX = fp.x - mDownFocusPoint.x;
final int deltaY = fp.y - mDownFocusPoint.y;
int distanceSquare = (deltaX * deltaX) + (deltaY * deltaY);
bPassToGestureDetector = distanceSquare > mTouchSlopSquare;
}
// Rubberbanding, intermediate
rubberBand(e.getX(), e.getY(), false);
}
if (bPassToGestureDetector) {
// Once we break out of the square or stop the long press, keep sending
if (e.getAction() == MotionEvent.ACTION_MOVE || e.getAction() == MotionEvent.ACTION_UP) {
mDownFocusPoint = null;
mPointProjection = null;
if (mClosestTask != null) {
mClosestTask.cancel(true);
}
}
mGestureDetector.onTouchEvent(e);
}
return mMultiTouchC.onTouchEvent(e, mScale.getMaxScale(), mScale.getMinScale(), mMacro);
}
private void updateCoordinates() {
mOrigin.update(mGpsTile, getWidth(), getHeight(), mGpsParams, mPan, mScale);
}
