safedispatch-mobile/libSafeMobile/src/main/java/com/safemobile/adapters/LiveGridViewAdapter.java

package com.safemobile.adapters;

import java.util.ArrayList;
import java.util.Hashtable;

import android.app.Activity;
import android.content.Context;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.safemobile.lib.R;
import com.safemobile.lib.SM;
import com.safemobile.lib.Vehicle;

public class LiveGridViewAdapter extends BaseAdapter
{
	private ArrayList<Vehicle> listVehicle;
	private ArrayList<Boolean> displayedVehicles;
	public ArrayList<Boolean> disabledVehicles;
	private Activity activity;
	//public String time;
	//private int[] colors = new int[] { Color.parseColor("#FFFFFF"), Color.parseColor("#D2E4FC") };  
	private Hashtable<Integer, View> hash = new Hashtable<Integer, View>(); 
	
	public LiveGridViewAdapter(Activity activity, ArrayList<Vehicle> listVehicle, Context context, ArrayList<Boolean> displayedVehicles, ArrayList<Boolean> disabledVehicles) 
	{
		super();
		this.activity = activity;
		this.listVehicle = listVehicle;
		//this.time = time;
		this.displayedVehicles = displayedVehicles;
		this.disabledVehicles = disabledVehicles;
	}
	
	@Override
	public int getCount() {
		return listVehicle.size();
	}

	@Override
	public Vehicle getItem(int position) {
		return listVehicle.get(position);
	}

	@Override
	public long getItemId(int position) {
		return 0;
	}

	public static class ViewHolder
	{
		public ImageView imgViewIcon, imgViewChecked;
		public TextView txtViewName;
		public LinearLayout  layoutVehicle;
	}
	
	@Override
	public View getView(final int position, View convertView, ViewGroup parent) {
		final ViewHolder view;
		LayoutInflater inflator = activity.getLayoutInflater();
		if(convertView==null)
		{
			view = new ViewHolder();
			convertView = inflator.inflate(R.layout.row_vehicle, null);
			
			view.imgViewIcon = (ImageView) convertView.findViewById(R.id.imageViewIcon);
			view.txtViewName = (TextView) convertView.findViewById(R.id.textViewName);
			view.imgViewChecked = (ImageView) convertView.findViewById(R.id.imageViewChecked);
			
			//view.linearLayoutChecked = (LinearLayout) convertView.findViewById(R.id.linearLayoutChecked);
			view.layoutVehicle = (LinearLayout) convertView.findViewById(R.id.layoutVehicle);
			convertView.setTag(view);
		}
		else
		{
			view = (ViewHolder) convertView.getTag();
		}
		
		hash.put(position, convertView);
		
		view.imgViewIcon.setImageResource(listVehicle.get(position).getSmallIcon());
		view.txtViewName.setText(listVehicle.get(position).name);
		// set color
		//int colorPos = position % colors.length;  
		//view.layoutVehicle.setBackgroundColor(colors[colorPos]); 
		switch(displayedVehicles.get(position) ? 1 : 0)
		{
			case 1:
				view.imgViewChecked.setImageResource(R.drawable.checked);
		        break;
		    case 0:
		    	view.imgViewChecked.setImageResource(R.drawable.unchecked);
		        break;
		}
		
		switch(disabledVehicles.get(position) ? 1 : 0)
		{
			case 1:
				view.layoutVehicle.setBackgroundColor(0xffcccccc);
				//view.imgViewIcon.setImageDrawable(convertToGrayscale(activity.getResources().getDrawable(listVehicle.get(position).getSmallIcon())));
				break;
			case 0:
				view.layoutVehicle.setBackgroundColor(0xffFFFFFF);
				//view.imgViewIcon.setImageResource(listVehicle.get(position).getSmallIcon());
				break;
		}
		
		return convertView;
	}
	
	public void changeDisplayed(int position, int status)
	{
		SM.Debug("DISABLE ON START: " + position + "  | " + (disabledVehicles.get(position) ? "true": "false"));
		SM.Debug("DISPLAY ON START: " + position + "  | " + (displayedVehicles.get(position) ? "true": "false"));
		// if vehicle is enable
		if(status == 1)
		{
			// change icon
			//view.imgViewChecked.setImageResource(R.drawable.unchecked);
			// change in list
			disabledVehicles.remove(position);
			disabledVehicles.add(position, false);
		}
		else if(status == 0)
		{
			// change icon
			//view.imgViewChecked.setImageResource(R.drawable.checked);
			// change in list
			disabledVehicles.remove(position);
			disabledVehicles.add(position, true);
		}
		// change displayed
		else if (status == -1)
		{
			// check selected position
			displayedVehicles.remove(position);
			displayedVehicles.add(position, true);
		}

		ViewHolder view = new ViewHolder();
		LayoutInflater inflator = activity.getLayoutInflater();
		View convertView = null;
	        if(convertView==null)
			{
				convertView = inflator.inflate(R.layout.row_vehicle, null);
				try
				{
				view.layoutVehicle = (LinearLayout) convertView.findViewById(R.id.layoutVehicle);
				view.imgViewIcon = (ImageView) convertView.findViewById(R.id.imageViewIcon);
				view.imgViewChecked = (ImageView) convertView.findViewById(R.id.imageViewChecked);
				convertView.setTag(view);
				
				view = (ViewHolder) convertView.getTag();
				}
				catch (Exception e) {
				}
			}
	        
	    SM.Debug("DISABLE AFTER: " + position + "  | " + (disabledVehicles.get(position) ? "true": "false"));
	    SM.Debug("DISPLAY AFTER: " + position + "  | " + (displayedVehicles.get(position) ? "true": "false"));
		switch(disabledVehicles.get(position) ? 1 : 0)
		{
			case 1:
				view.layoutVehicle.setBackgroundColor(0xffcccccc);
				//view.imgViewIcon.setImageDrawable(convertToGrayscale(activity.getResources().getDrawable(listVehicle.get(position).getSmallIcon())));
				break;
			case 0:
				view.layoutVehicle.setBackgroundColor(0xffFFFFFF);
				//view.imgViewIcon.setImageResource(listVehicle.get(position).getSmallIcon());
				break;
		}
		
		switch(displayedVehicles.get(position) ? 1 : 0)
		{
			case 1:
				view.imgViewChecked.setImageResource(R.drawable.checked);
		        break;
		    case 0:
		    	view.imgViewChecked.setImageResource(R.drawable.unchecked);
		        break;
		}
	}

	public void changeView(int position)
	{
		View con = hash.get(position);
		ViewHolder view = (ViewHolder) con.getTag();
		switch(disabledVehicles.get(position) ? 1 : 0)
		{
			case 1:
				view.layoutVehicle.setBackgroundColor(0xffcccccc);
				//view.imgViewIcon.setImageDrawable(convertToGrayscale(activity.getResources().getDrawable(listVehicle.get(position).getSmallIcon())));
				break;
			case 0:
				view.layoutVehicle.setBackgroundColor(0xffFFFFFF);
				//view.imgViewIcon.setImageResource(listVehicle.get(position).getSmallIcon());
				break;
		}
		
		switch(displayedVehicles.get(position) ? 1 : 0)
		{
			case 1:
				view.imgViewChecked.setImageResource(R.drawable.checked);
		        break;
		    case 0:
		    	view.imgViewChecked.setImageResource(R.drawable.unchecked);
		        break;
		}
	}
	
	protected Drawable convertToGrayscale(Drawable drawable)
	{
	    ColorMatrix matrix = new ColorMatrix();
	    matrix.setSaturation(0);

	    ColorMatrixColorFilter filter = new ColorMatrixColorFilter(matrix);

	    drawable.setColorFilter(filter);

	    return drawable;
	}

}