xline.cpp

一款改进了的查询系统----北京公交车查询系统

#include "StdAfx.h"

#include "XLine.h"
#include "XStations.h"

XLine::XLine()
{
	id = -1;
	name = "";
	isOneWay = false;
}

XLine::~XLine()
{
}

XLine& XLine::operator = (const XLine& line)
{
	if (&line == this) return *this;

	id = line.id;
	name = line.name;
	isOneWay = line.isOneWay;
	spots = line.spots;

	return *this;
}

bool XLine::operator == (const XLine& line)
{
	return  (id  == line.id);
}

bool XLine::IsInRect (float left, float top, float right, float bottom)
{
	for (size_t i = 0; i < spots.size();i++)
	{
		PointF position = spots[i].GetPosition ();
		if (position.X >= left && position.X <= right
			&& position.Y >= top && position.Y <= bottom)
			return true;
	}

	return false;
}
 
int XLine::Append (XSpot& vSpot)
{
	spots.push_back(vSpot);

	return (int)spots.size();
}

int XLine::Remove (XSpot& vSpot)
{
	vector<XSpot>::iterator pos;

	pos = find (spots.begin(),spots.end(),vSpot);
	
	//if (pos != spots.end())
		spots.erase (pos);

	return -1;
}

int XLine::ToTube (RectF rect, XTube& tube)
{
	tube.GetSpots ().clear ();
	
	size_t start = 0, end = 0;
	for (start = 0; start < spots.size(); start++)
	{
		if (rect.Contains(spots[start].GetPosition ()))
			break;
	}

	for (end = spots.size()-1; end > start; end--)
	{
		if (rect.Contains(spots[start].GetPosition ()))
			break;
	}

	if (start > end) return 0;
	if (start > 0) start --;
	if (end < spots.size () -1) end ++;

	for (size_t i = start; i <= end; i ++)
		tube.Append (spots[i]);

	return tube.GetCount ();
}

int  XLine::GetCount()
{   
	return (int) spots.size();;
}

int XLine::ToXML (CMarkup& markup)
{
	/*
	markup.AddChildAttr ("name", name);


	markup.AddChildElem ("stations");

	markup.IntoElem (); 
	for (int i = 0; i < size(); i++)
	{
		markup.AddChildElem ("station");
		markup.AddChildAttr ("name", name);
		markup.AddChildAttr ("longitude", position.X);
		markup.AddChildAttr ("latitude", position.Y);
		markup.AddChildAttr ("type", type);
	}
	markup.OutOfElem();
	*/
	return 0;
}

int XLine::FromXML (CMarkup& markup)
{
	name = markup.GetChildAttr("name");

	if (markup.GetChildAttr("oneway") == "true")
		isOneWay = true; 
	else 
		isOneWay = false;

	markup.IntoElem ();
	if (markup.FindChildElem("stations") )
	{
		markup.IntoElem ();
		while(markup.FindChildElem("station"))
		{
			PointF position;
			SpotTypeEnum type;

			CString vName = markup.GetChildAttr("name");

			position.X = float(atof(markup.GetChildAttr("longitude"))-116.0)*10000;
			position.Y = float(40.0 - atof(markup.GetChildAttr("latitude")))*10000;

			if (vName.IsEmpty())
				type = STE_NULL;
			else
				type = STE_SMALL_CIRCLE;
			
			Append(XSpot (position, type, vName));
		}
		
		markup.OutOfElem();
	}

	markup.OutOfElem();

	return 0;
}