/**
* * Draw the horizontal and vertical distance tape
*
* @param canvas what to draw upon
* @param scale object for zoom determinations
* @param pixPerUnit how many pixels per mile/km/nm
* @param homeX horizontal position of current location on display
* @param homeY vertical position of current location on display
* @param top the usable top of the display
* @param width of the display
* @param height of the display
*/
@SuppressLint("DefaultLocale")
public void draw(
Canvas canvas,
Scale scale,
float pixPerUnit,
int homeX,
int homeY,
int top,
int width,
int height) {
// Set color and transparency for the shadow
mPaint.setColor(Color.BLACK); // shadow color is black
mPaint.setAlpha(0x7F); // Make it see-thru
// the vertical shadow down the left of the display
mPaint.setStrokeWidth(mBgndWidth); // Line width
canvas.drawLine(mBgndWidth / 2, top, mBgndWidth / 2, height, mPaint);
// the horizontal shadow along the top of the display under the display rows
mPaint.setStrokeWidth(mBgndHeight);
canvas.drawLine(mBgndWidth - 1, top + mBgndHeight / 2, width, top + mBgndHeight / 2, mPaint);
// The interval values for the scale indicator
double step = scale.getStep();
// text is white in color
mPaint.setColor(Color.WHITE);
// the horizontal values use posX and posY
int posX = homeX - (mTextWidth / 2);
int posY = top + mBotmMargin;
// Display the tape values for 20 distances
for (int idx = 0; idx < 21; idx++) {
// The current range. Make its label. Calc its display offset
double inc = idx * step;
String strLabel = String.format(inc < 10 ? "%1.1f" : "%.0f", inc);
float offset = (float) step * idx * pixPerUnit;
// vertical tape on the left side. Show if on the screen
if (inRangeY(homeY - offset, posY, height))
canvas.drawText(strLabel, mLeftMargin, homeY - offset, mPaint);
if (inRangeY(homeY + offset, posY, height))
canvas.drawText(strLabel, mLeftMargin, homeY + offset, mPaint);
// Horizontal tape on the top edge. Show if on the screen
if (inRangeX(posX - offset, mBgndWidth, width))
canvas.drawText(strLabel, posX - offset, posY, mPaint);
if (inRangeX(posX + offset, mBgndWidth, width))
canvas.drawText(strLabel, posX + offset, posY, mPaint);
}
return;
}
/** Center to the location */
public void center() {
/*
* On double tap, move to center
*/
mPan = new Pan();
if (mService != null) {
mPan.setMove(0, (float) ((getHeight() * .25) / mScale.getScaleFactor()));
mService.setPan(mPan);
mService.getTiles().forceReload();
}
loadTiles();
updateCoordinates();
postInvalidate();
}
/* (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 com.ds.avare.MultiTouchController.MultiTouchObjectCanvas#getPositionAndScale(java.lang.Object, com.ds.avare.MultiTouchController.PositionAndScale)
*/
public void getPositionAndScale(Object obj, PositionAndScale objPosAndScaleOut) {
objPosAndScaleOut.set(
mPan.getMoveX(), mPan.getMoveY(), true, mScale.getScaleFactorRaw(), false, 0, 0, false, 0);
}
/* (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);
}
public void zoomIn20Pct() {
mScale.setScaleFactor((float) (mScale.getScaleFactor() * 1.2));
invalidate();
}
public void zoomOut20Pct() {
mScale.setScaleFactor((float) (mScale.getScaleFactor() * .8));
invalidate();
}
public void zoomOut() {
mScale.zoomOut();
}