// Source code file MyView.java.

package it372.drawdots;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.MotionEvent;
import android.view.View;
import java.util.ArrayList;

public class MyView extends View {
    private Context savedContext;
    private ArrayList<DBRow> rows = new ArrayList<DBRow>( );
    public MyView(Context context) {
        super(context);
        savedContext = context;
        this.setOnTouchListener(new View.OnTouchListener() {

            @Override
            public boolean onTouch(View v, MotionEvent e) {
                int foundID = 0;
                if (e.getAction( ) == MotionEvent.ACTION_UP) {
                    for (DBRow r : rows) {
                        if (Math.abs(e.getX() - r.x) < 20.0f &&
                            Math.abs(e.getY() - r.y) < 20.0f) {
                            foundID = r.id;
                        }
                    }
                    System.out.println("Found ID: " + foundID);
                }
                return true;
            }


        });
    }

    @Override
    public boolean performClick() {
        return true;
    }

    @Override
    public void onDraw(Canvas canvas) {
        Paint paint = new Paint( );

        PointsDBHelper dbh = new PointsDBHelper(savedContext);
        SQLiteDatabase db = dbh.getReadableDatabase( );
        Cursor c = db.query("points",
                new String[ ] {"id", "xposition", "yposition"},
                null, null, null,
                null, null);

        c.moveToFirst( );
        do {
            int id = c.getInt(0);
            float x = c.getFloat(1);
            float y = c.getFloat(2);
            canvas.drawCircle(x, y, 8.0f, paint);
            rows.add(new DBRow(id, x, y));
        } while (c.moveToNext( ));
    }
}