// VerticalLines Example
// Source Code File: MyView.java

package it372.sjost.verticallines;
import android.annotation.SuppressLint;
import android.content.Context;
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 {

    // Initialize drawing color to white.
    private String color;

    // Arraylist to hold x-values for
    // vertical lines.
    private ArrayList<VertLine> lines;

    // Paint object for setting the color
    // and line width.
    private Paint paint;

    @SuppressLint("ClickableViewAccessibility")
    public MyView(Context context) {
        super(context);

        // Initialize Paint object
        paint = new Paint( );
        paint.setStrokeWidth(10.0f);

        // Instantiate ArrayList collection.
        lines = new ArrayList<VertLine>( );

        // Attach onTouch listener to MyView
        // object
        this.setOnTouchListener( (v, e) -> {
            if (e.getAction( ) == MotionEvent.ACTION_UP) {
                int x = Math.round(e.getX( ));
                lines.add(new VertLine(x, color));
                MyView.this.invalidate( );
            }
            return true;
        });
    }

    public void setColor(String color) {
        this.color = color;
    }

    @Override
    public void onDraw(Canvas canvas) {
        int height = MyView.this.getHeight( );
        for(VertLine line: lines) {
            int x = line.getX( );
            String color = line.getColor( );
            paint.setColor(Color.parseColor(color));
            canvas.drawLine(x, 0, x, height, paint);
        }
    }
}