/*
 * File: LineView.java
 * 		This file is part of Tico, an application to create and	perform
 * 		interactive communication boards to be used by people with
 * 		severe motor disabilities.
 * 
 * Author: Eduardo Ferrer
 * 
 * Date: Nov, 2011
 * 
 * Company: Universidad de Zaragoza, CPS, DIIS
 * 
 * License:
 * 		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 android.TICO.Views;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.Style;
import android.graphics.RectF;
import android.view.View;

/**
 * Implementation of a <code>LineView</code> view.
 * 
 * @author Eduardo Ferrer
 * @version 2.0 May, 2012
 */
public class LineView extends View{
	Paint paint=new Paint();
	float startX;
	float startY;
	float stopX,stopY;
	
	/**
	 * Creates a new <code>LineView</code> for the specified params.
	 * 
	 * @param startX The starting coordinate in X of the line
	 * @param startY The starting coordinate in Y of the line
	 * @param stopX The ending coordinate in X of the line
	 * @param stopY The ending coordinate in Y of the line
	 * @param context The Context the view is running in, through which it can access the current theme, resources, etc. 
	 */
	public LineView(int startX,int startY,int stopX,int stopY,Context context){
		super(context);
		paint.setColor(Color.WHITE);
		this.startX=startX;
		this.startY=startY;
		this.stopX=stopX;
		this.stopY=stopY;
		
	}
	
	/**
	 * Creates a new <code>line</code> for the specified params based on a rectangle diagonal.
	 * 
	 * @param startCorner The starting corner of the rectangle for the diagonal.
	 * 		<code>0</code> for top left.
	 * 		<code>2</code> for top right.
	 * 		<code>5</code> for bottom left.
	 * 		<code>7</code> for bottom right.
	 * @param left The starting coordinate in X of the rectangle which contents the line
	 * @param top The starting coordinate in Y of the rectangle which contents the line
	 * @param right The ending coordinate in X of the rectangle which contents the line
	 * @param bottom The ending coordinate in Y of the rectangle which contents the line
	 * @param border set the <code>LineView</code>'s stroke width of the line.
	 * @param context The Context the view is running in, through which it can access the current theme, resources, etc. 
	 */
	public LineView(int startCorner,int left, int top, int right, int bottom, int border, Context context){
		super(context);
		paint.setColor(Color.WHITE);
		RectF rect= new RectF();
		rect.set(left, top, right, bottom);
		setBorderWidth(border);
		switch(startCorner){
			case 0: //esquina superior izquierda
				this.startX=rect.left;//+paint.getStrokeWidth()/2;
				this.startY=rect.top;//+paint.getStrokeWidth()/2;
				this.stopX=rect.right;//-paint.getStrokeWidth()/2;
				this.stopY=rect.bottom;//-paint.getStrokeWidth()/2;
				break;
				
			case 2: //esquina superior derecha
				this.startX=rect.right;//-paint.getStrokeWidth()/2;
				this.startY=rect.top;//+paint.getStrokeWidth()/2;
				this.stopX=rect.left;//+paint.getStrokeWidth()/2;
				this.stopY=rect.bottom;//-paint.getStrokeWidth()/2;
				break;
				
			case 5: //esquina inferior izquierda
				this.startX=rect.left;//+paint.getStrokeWidth()/2;
				this.startY=rect.bottom;//-paint.getStrokeWidth()/2;
				this.stopX=rect.right;//-paint.getStrokeWidth()/2;
				this.stopY=rect.top;//+paint.getStrokeWidth()/2;
				break;
				
			case 7: //esquina inferior derecha
				this.startX=rect.right;//-paint.getStrokeWidth()/2;
				this.startY=rect.bottom;//-paint.getStrokeWidth()/2;
				this.stopX=rect.left;//+paint.getStrokeWidth()/2;
				this.stopY=rect.top;//+paint.getStrokeWidth()/2;
				break;
		}
		
		
	}
	
	public void onDraw(Canvas canvas){
		//canvas.drawLine(0, 0, 20, 20, paint);
		//canvas.drawLine(20, 0, 0, 20, paint);
		canvas.drawLine(startX, startY, stopX, stopY, paint);
		
	}
	
	/**
	 * Set de <code>LineView</code> color of the line. Note that the color is an int containing alpha as well as r,g,b. 
	 * This 32bit value is not premultiplied, meaning that its alpha can be any value, regardless of the values of r,g,b. 
	 * See the Color class for more details.
	 * 
	 * @param color  The new color (including alpha) to set as color of the line.  
	 */
	public void setColor(int color){
		paint.setColor(color);
	}
	
	
	/**
	 * Set the width for stroking. Pass 0 to stroke in hairline mode. Hairlines always draws a single pixel independent of the canva's matrix.
	 * 
	 * @param border  set the <code>LineView</code>'s stroke width of the line.  
	 *
	 */
	public void setBorderWidth(int border){
		paint.setStyle(Style.STROKE);
		paint.setStrokeWidth(border);
	}
}