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

package com.safemobile.adapters;

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

import android.app.Activity;
import android.content.Context;
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.AppParams;
import com.safemobile.lib.R;
import com.safemobile.lib.Vehicle;

public class VehiclesGridViewAdapter extends BaseAdapter
{
	private ArrayList<Vehicle> listVehicles;
	private ArrayList<Boolean> disabledVehicles;
	private ArrayList<Boolean> displayedVehicles;
	private Activity activity;

	private Hashtable<Integer, View> hash = new Hashtable<Integer, View>(); 
	
	public VehiclesGridViewAdapter(Activity activity, Context context, ArrayList<Vehicle> listVehicles, ArrayList<Boolean> disabledVehicles) 
	{
		super();
		this.activity = activity;
		this.listVehicles = listVehicles;
		this.disabledVehicles = disabledVehicles;
		
		// set displayed positions to false
		displayedVehicles = new ArrayList<Boolean>();
		for(Vehicle veh: listVehicles)
		{
			if(AppParams.DEMO && (veh.sc_id == 101 || veh.sc_id == 102))
				displayedVehicles.add(true);
			else
				displayedVehicles.add(false);
		}
	}
	
	@Override
	public int getCount() {
		return listVehicles.size();
	}

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

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

	/** Define Row Template */
	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.layoutVehicle = (LinearLayout) convertView.findViewById(R.id.layoutVehicle);
			
			convertView.setTag(view);
		}
		else
		{
			view = (ViewHolder) convertView.getTag();
		}
		
		hash.put(position, convertView);
		
		/* if recording disabled change background */
		try
		{
		if(!disabledVehicles.get(position))
			view.layoutVehicle.setBackgroundColor(0xFFDDDDDD);
		else 
			view.layoutVehicle.setBackgroundColor(0xFFFFFFFF);
		
		}
		catch(IndexOutOfBoundsException ex) {
			view.layoutVehicle.setBackgroundColor(0xFFFFFFFF);
		}
		
		/* set vehicle name and icon  */
		view.imgViewIcon.setImageResource(listVehicles.get(position).getSmallIcon());
		view.txtViewName.setText(listVehicles.get(position).name);
		
		/* set checked or not */
		if(displayedVehicles.get(position))
			view.imgViewChecked.setImageResource(R.drawable.checked);
		else
			view.imgViewChecked.setImageResource(R.drawable.unchecked);
		
		return convertView;
	}
	
	
		
	/** Get the View for one row in the GridView */
	public View getView(int position)
	{
		return (View) hash.get(position);
	}
	
	/** Change all vehicles checkBox */
	public void changeDisplayAll(boolean display)
	{
		for(int i=0; i<listVehicles.size(); i++)
			displayedVehicles.set(i, display);
		
		for(int i=0; i<hash.size(); i++)
		{
			// change value in the vector
			displayedVehicles.set(i, display);

			// make changes in the UI //
			ViewHolder viewHolder = (ViewHolder) getView(i).getTag();
			if(viewHolder!=null)
			{
				if(display)
					viewHolder.imgViewChecked.setImageResource(R.drawable.checked);
				else
					viewHolder.imgViewChecked.setImageResource(R.drawable.unchecked);
			}
		}
	}
	
	
	/** Change displayed vehicle checkBox */
	public void changeDisplayed(int position, boolean display)
	{
		// change value in the vector
		displayedVehicles.set(position, display);
		
		// make changes in the UI //
		ViewHolder viewHolder = (ViewHolder) getView(position).getTag();
			if(display)
				viewHolder.imgViewChecked.setImageResource(R.drawable.checked);
			else
				viewHolder.imgViewChecked.setImageResource(R.drawable.unchecked);
	}
	
	/** Change disabled vehicle background */
	public void changeDisabled(int position, boolean disabled)
	{
		// change value in the vector
		disabledVehicles.set(position, disabled);
		
		// make changes in the UI //
		ViewHolder viewHolder = (ViewHolder) getView(position).getTag();
			if(disabled)
				viewHolder.layoutVehicle.setBackgroundColor(0xFFDDDDDD);
			else 
				viewHolder.layoutVehicle.setBackgroundColor(0xFFFFFFFF);
	}
}