gov.sfmta.sfpark.AnnotationsOverlay.java Source code

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Here is the source code for gov.sfmta.sfpark.AnnotationsOverlay.java

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/*
  Copyright (C) 2011 San Francisco Municipal Transportation Agency (SFMTA)
    
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
    
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
    
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

package gov.sfmta.sfpark;

import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint.Style;
import android.graphics.Paint;
import android.graphics.Point;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.RectShape;
import android.os.AsyncTask;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View.OnClickListener;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.ViewTreeObserver;
import android.widget.TextView;

import com.flurry.android.FlurryAgent;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.MapView.LayoutParams;
import com.google.android.maps.MapView;
import com.google.android.maps.OverlayItem;
import com.google.android.maps.Projection;

import org.json.JSONException;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

public class AnnotationsOverlay extends ItemizedOverlay {

    private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
    private static final String TAG = "SFpark";
    Drawable[] iconArray;
    private boolean isPinch = false;
    ProgressDialog pd;
    boolean myShowPrice;
    LoadOverlaysTask ld = null;
    MyAnnotation aa = null;
    Context mContext;
    int closestIndex = 2000;
    int index = 0;
    double dist = 3000;
    double lastDist = 30000000;
    MyAnnotation c = null;
    float lat0, lon0;
    AlertDialog tapdlg = null;
    public static View popupView = null;
    int action, last_action;

    public AnnotationsOverlay(Drawable defaultMarker) {
        super(boundCenterBottom(defaultMarker));
    }

    public AnnotationsOverlay(Drawable defaultMarker, Context context) {
        super(boundCenterBottom(defaultMarker));
        mContext = context;

        iconArray = new Drawable[8];

        ShapeDrawable invisible = new ShapeDrawable(new RectShape());
        invisible.getPaint().setColor(0x00000000);

        iconArray[0] = invisible;
        iconArray[1] = mContext.getResources().getDrawable(R.drawable.invalid_garage);
        iconArray[2] = mContext.getResources().getDrawable(R.drawable.garage_availability_high);
        iconArray[3] = mContext.getResources().getDrawable(R.drawable.garage_availability_medium);
        iconArray[4] = mContext.getResources().getDrawable(R.drawable.garage_availability_low);
        iconArray[5] = mContext.getResources().getDrawable(R.drawable.garage_price_low);
        iconArray[6] = mContext.getResources().getDrawable(R.drawable.garage_price_medium);
        iconArray[7] = mContext.getResources().getDrawable(R.drawable.garage_price_high);

        boundCenterBottom(iconArray[0]);
        boundCenterBottom(iconArray[1]);
        boundCenterBottom(iconArray[2]);
        boundCenterBottom(iconArray[3]);
        boundCenterBottom(iconArray[4]);
        boundCenterBottom(iconArray[5]);
        boundCenterBottom(iconArray[6]);
        boundCenterBottom(iconArray[7]);

        action = 0;
        last_action = 0;
    }

    public void loadOverlays(boolean showprice) {
        Log.v(TAG, "Drawing annotations");
        int itemImageName = 0;
        mOverlays.clear();

        for (MyAnnotation a : MainScreenActivity.annotations) {

            // new: don't add annotations for on-street availability
            if (a.onStreet && (!showprice))
                continue;

            try {
                a.blockColor = a.blockfaceColorizerWithShowPrice(showprice);
                a.blockColorAvailability = a.blockColor;

                OverlayItem item = new OverlayItem(a.mid, a.title, null);

                itemImageName = a.iconFinder(showprice);
                // Upper and lower bounds for the index mapping into
                // the different icons.
                if ((itemImageName >= 0) && (itemImageName < 8)) {
                    item.setMarker(iconArray[itemImageName]);
                } else {
                    Log.v(TAG, "Out of range " + itemImageName + a);
                }

                mOverlays.add(item);
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
        populate();
        Log.v(TAG, "Finished drawing annotations");
    }

    public void addOverlay(OverlayItem overlay) {
        mOverlays.add(overlay);
        populate();
    }

    @Override
    protected OverlayItem createItem(int i) {
        return mOverlays.get(i);
    }

    @Override
    public int size() {
        return mOverlays.size();
    }

    @Override
    public boolean onTouchEvent(MotionEvent e, MapView mapView) {
        int fingers = e.getPointerCount();
        int action = e.getAction();

        Log.v(TAG, "onTouchEvent " + action);

        if (action == MotionEvent.ACTION_DOWN) {
            isPinch = false;
        }

        if (action == MotionEvent.ACTION_MOVE && fingers == 2) {
            isPinch = true;
        }

        if (popupView != null) {
            MainScreenActivity.mapView.removeView(popupView);
            popupView = null;
        }

        return super.onTouchEvent(e, mapView);
    }

    @Override
    protected boolean onTap(final int index) {
        Log.v(TAG, "onTap");

        if (isPinch) {
            return false;
        }

        aa = MainScreenActivity.annotations.get(index);

        if (aa == null) {
            return false;
        }

        try {
            aa.subtitle = aa.availabilityDescriptionShowingPrice(MainScreenActivity.showPrice);
        } catch (JSONException e) {
            e.printStackTrace();
        }

        GeoPoint geoPoint = aa.mid;

        LayoutInflater vi = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        popupView = vi.inflate(R.layout.dialog, null);

        TextView title = (TextView) popupView.findViewById(R.id.detailTitle);
        TextView subtitle = (TextView) popupView.findViewById(R.id.detailSubtitle);
        title.setTextColor(0xFFffffff);
        subtitle.setTextColor(0xFFcccccc);

        // set bubble title
        title.setText(aa.title != null ? aa.title : mContext.getString(R.string.unknown));

        // Bubble Flurry!
        Map<String, String> details = new HashMap<String, String>();
        details.put("Details for", aa.title);
        FlurryAgent.logEvent("Show_Details", details);

        // set bubble subtitle
        if (aa.subtitle == null) {
            subtitle.setText(R.string.full);
            aa.subtitle = mContext.getString(R.string.full);
        } else {
            if (aa.onStreet) {
                subtitle.setText(aa.subtitle);
            } else {
                if (aa.subtitle.startsWith("Estimated 0 of") || aa.subtitle.startsWith("Estimated -")
                        || aa.subtitle.startsWith("-")) {
                    subtitle.setText(R.string.full);
                    aa.subtitle = mContext.getString(R.string.full);
                } else {
                    subtitle.setText(aa.subtitle);
                }
            }
        }

        LayoutParams mapDialogParams = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT, geoPoint, 0, -20, LayoutParams.CENTER);
        MainScreenActivity.mapView.addView(popupView, mapDialogParams);

        popupView.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Log.v(TAG, "Details tapped");

                // Bubble Flurry!
                Map<String, String> moreDetails = new HashMap<String, String>();
                moreDetails.put("Details for", aa.title);
                FlurryAgent.logEvent("Show_More_Details", moreDetails);

                DetailViewActivity.present(mContext, aa);
                return;
            }
        });

        //PreDraw creates infinite loop situations
        ViewTreeObserver vto = popupView.getViewTreeObserver();
        vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
            @Override
            public void onGlobalLayout() {
                Log.v(TAG, "onGlobalLayout");

                if ((aa == null) || (MainScreenActivity.mapView == null) || (MainScreenActivity.mc == null)
                        || (popupView == null)) {
                    return;
                }

                // compromise until figure out horiz Point
                // offset(dx, 0) projection toPixels fromPixels
                // dip - pixels - lon getMeasuredWidth etc
                if ((popupView.getLeft() < MainScreenActivity.mapView.getLeft())
                        || (popupView.getRight() > MainScreenActivity.mapView.getRight())) {
                    // assumes aa is set!
                    MainScreenActivity.mc.animateTo(aa.mid);
                }

                // Separated for clarity - something missing re
                // -20 at top and view height at bottom...

                if ((popupView.getTop() < MainScreenActivity.mapView.getTop())
                        || (popupView.getBottom() > MainScreenActivity.mapView.getBottom())) {
                    // assumes aa is set!
                    MainScreenActivity.mc.animateTo(aa.mid);
                }

                // make sure only called one time!
                popupView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
            }
        });

        return true;
    }

    public void draw(Canvas canvas, MapView mapv, boolean shadow) {
        if (shadow) {
            return;
        }

        Projection projection = mapv.getProjection();

        Point from = new Point();
        Point to = new Point();

        Paint mPaint = new Paint();
        mPaint.setStyle(Style.STROKE);
        mPaint.setAntiAlias(true);
        mPaint.setStrokeWidth(6);
        mPaint.setStrokeCap(Paint.Cap.ROUND);

        // could have NPE:
        try {
            for (MyAnnotation a : MainScreenActivity.annotations) {
                if (a.onStreet) {
                    projection.toPixels(a.nw, from);
                    projection.toPixels(a.se, to);
                    if (MainScreenActivity.showPrice) {
                        mPaint.setColor(a.blockColorPrice);
                        canvas.drawLine(from.x, from.y, to.x, to.y, mPaint);
                    } else {
                        // new: no more availability data on blockfaces.
                        // mPaint.setColor(a.blockColorAvailability);
                    }
                }
            }
        } catch (NullPointerException npe) {
            // oh sadface! just ignore.
        }

        super.draw(canvas, mapv, shadow);
    }

    public void loadOverlaysProgress(boolean showprice) {

        myShowPrice = showprice;
        mOverlays.clear();

        Log.v(TAG, "Drawing annotations");

        pd = new ProgressDialog(mContext);
        pd.setCancelable(false);
        pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        pd.setMessage("Calculating availability");
        pd.setProgress(0);
        pd.setMax(MainScreenActivity.annotations.size());
        pd.show();

        ld = new LoadOverlaysTask();
        ld.execute("String");
    }

    class LoadOverlaysTask extends AsyncTask<String, Void, Void> {
        protected void onPreExecute() {
            if (myShowPrice) {
                pd.setMessage("Calculating pricing display");
            }
            pd.show();
        }

        protected Void doInBackground(String... urls) {
            int itemImageName = -1;
            long startTime = System.currentTimeMillis();

            try {
                for (MyAnnotation a : MainScreenActivity.annotations) {
                    //called at least twice
                    a.blockColor = a.blockfaceColorizerWithShowPrice(myShowPrice);
                    a.blockColorPrice = a.blockColor;

                    OverlayItem item = new OverlayItem(a.mid, a.title, null);

                    itemImageName = a.iconFinder(myShowPrice);

                    // Upper and lower bounds for the index mapping
                    // into the different icons.
                    if ((itemImageName >= 0) && (itemImageName < 8)) {
                        item.setMarker(iconArray[itemImageName]);
                    } else {
                        Log.v(TAG, "Out of range " + itemImageName + a);
                    }

                    mOverlays.add(item);
                    pd.incrementProgressBy(1);
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }

            long endTime = System.currentTimeMillis();
            Log.v(TAG, String.format("Time taken %d ms ", endTime - startTime));
            return null;
        }

        protected void onPostExecute(Void unused) {
            pd.setMessage("Populating pricing display");
            populate();

            Log.v(TAG, "Finished drawing annotations");
            pd.dismiss();
            MainScreenActivity.updateMap();
        }
    }
}