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#include "geourl_process.hpp"
#include "../indexer/scales.hpp"
#include "../indexer/mercator.hpp"
#include "../base/string_utils.hpp"
namespace url_scheme
{
void Info::Reset()
{
m_lat = m_lon = EmptyValue();
m_zoom = scales::GetUpperScale();
}
m2::RectD Info::GetViewport() const
{
ASSERT ( IsValid(), () );
return scales::GetRectForLevel(m_zoom,
m2::PointD(MercatorBounds::LonToX(m_lon),
MercatorBounds::LatToY(m_lat)),
1.0);
}
class DoParse
{
Info & m_info;
enum TMode { START, LAT, LON, ZOOM, FINISH };
TMode m_mode;
static void ToDouble(string const & token, double & d)
{
double temp;
if (strings::to_double(token, temp))
d = temp;
}
bool CheckKeyword(string const & token)
{
if (token == "lat" || token == "point")
m_mode = LAT;
else if (token == "lon")
m_mode = LON;
else if (token == "zoom")
m_mode = ZOOM;
else
return false;
return true;
}
public:
DoParse(Info & info) : m_info(info), m_mode(START)
{
}
void operator()(string const & token)
{
switch (m_mode)
{
case START:
ASSERT(token == "geo" || token == "mapswithme", (token));
m_mode = LAT;
break;
case LAT:
if (!CheckKeyword(token))
{
ToDouble(token, m_info.m_lat);
m_mode = LON;
}
break;
case LON:
if (!CheckKeyword(token))
{
ToDouble(token, m_info.m_lon);
m_mode = ZOOM;
}
break;
case ZOOM:
if (!CheckKeyword(token))
{
ToDouble(token, m_info.m_zoom);
m_mode = FINISH;
}
break;
default:
break;
}
}
};
void ParseURL(string const & s, Info & info)
{
strings::Tokenize(s, ":/?&=,", DoParse(info));
}
}
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