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qgis.cpp
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qgis.cpp
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/***************************************************************************
qgis.cpp
-------------------
begin : 2007
copyright : (C) 2007 by Gary E. Sherman
email : sherman@mrcc.com
***************************************************************************/
/***************************************************************************
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgis.h"
#ifndef QGSVERSION
#include "qgsversion.h"
#endif
#include <QCoreApplication>
#include <QColor>
#include <QDate>
#include <QTime>
#include <QLocale>
#include <QDateTime>
#include "qgsconfig.h"
#include "qgslogger.h"
#include "geometry/qgswkbtypes.h"
#include <ogr_api.h>
// Version constants
//
// Version string
const char* QGis::QGIS_VERSION = VERSION;
// development version
const char* QGis::QGIS_DEV_VERSION = QGSVERSION;
// Version number used for comparing versions using the
// "Check QGIS Version" function
const int QGis::QGIS_VERSION_INT = VERSION_INT;
// Release name
const char* QGis::QGIS_RELEASE_NAME = RELEASE_NAME;
#if GDAL_VERSION_NUM >= 1800
const QString GEOPROJ4 = "+proj=longlat +datum=WGS84 +no_defs";
#else
const QString GEOPROJ4 = "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs";
#endif
const QString GEOWKT =
"GEOGCS[\"WGS 84\", "
" DATUM[\"WGS_1984\", "
" SPHEROID[\"WGS 84\",6378137,298.257223563, "
" AUTHORITY[\"EPSG\",7030]], "
" TOWGS84[0,0,0,0,0,0,0], "
" AUTHORITY[\"EPSG\",6326]], "
" PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",8901]], "
" UNIT[\"DMSH\",0.0174532925199433,AUTHORITY[\"EPSG\",9108]], "
" AXIS[\"Lat\",NORTH], "
" AXIS[\"Long\",EAST], "
" AUTHORITY[\"EPSG\",4326]]";
const QString PROJECT_SCALES =
"1:1000000,1:500000,1:250000,1:100000,1:50000,1:25000,"
"1:10000,1:5000,1:2500,1:1000,1:500";
const QString GEO_EPSG_CRS_AUTHID = "EPSG:4326";
const QString GEO_NONE = "NONE";
const double QGis::DEFAULT_IDENTIFY_RADIUS = 0.5;
const double QGis::DEFAULT_SEARCH_RADIUS_MM = 2.;
//! Default threshold between map coordinates and device coordinates for map2pixel simplification
const float QGis::DEFAULT_MAPTOPIXEL_THRESHOLD = 1.0f;
const QColor QGis::DEFAULT_HIGHLIGHT_COLOR = QColor( 255, 0, 0, 128 );
double QGis::DEFAULT_HIGHLIGHT_BUFFER_MM = 0.5;
double QGis::DEFAULT_HIGHLIGHT_MIN_WIDTH_MM = 1.0;
// description strings for units
// Order must match enum indices
const char* QGis::qgisUnitTypes[] =
{
QT_TRANSLATE_NOOP( "QGis::UnitType", "meters" ),
QT_TRANSLATE_NOOP( "QGis::UnitType", "feet" ),
QT_TRANSLATE_NOOP( "QGis::UnitType", "degrees" ),
QT_TRANSLATE_NOOP( "QGis::UnitType", "<unknown>" ),
QT_TRANSLATE_NOOP( "QGis::UnitType", "degrees" ),
QT_TRANSLATE_NOOP( "QGis::UnitType", "degrees" ),
QT_TRANSLATE_NOOP( "QGis::UnitType", "degrees" ),
QT_TRANSLATE_NOOP( "QGis::UnitType", "nautical miles" )
};
QgsWKBTypes::Type QGis::fromOldWkbType( QGis::WkbType type )
{
switch ( type )
{
case QGis::WKBPoint: return QgsWKBTypes::Point;
case QGis::WKBLineString: return QgsWKBTypes::LineString;
case QGis::WKBPolygon: return QgsWKBTypes::Polygon;
case QGis::WKBMultiPoint: return QgsWKBTypes::MultiPoint;
case QGis::WKBMultiLineString: return QgsWKBTypes::MultiLineString;
case QGis::WKBMultiPolygon: return QgsWKBTypes::MultiPolygon;
case QGis::WKBNoGeometry: return QgsWKBTypes::NoGeometry;
case QGis::WKBPoint25D: return QgsWKBTypes::PointZ;
case QGis::WKBLineString25D: return QgsWKBTypes::LineStringZ;
case QGis::WKBPolygon25D: return QgsWKBTypes::PolygonZ;
case QGis::WKBMultiPoint25D: return QgsWKBTypes::MultiPointZ;
case QGis::WKBMultiLineString25D: return QgsWKBTypes::MultiLineStringZ;
case QGis::WKBMultiPolygon25D: return QgsWKBTypes::MultiPolygonZ;
case QGis::WKBUnknown: return QgsWKBTypes::Unknown;
default: break;
}
QgsDebugMsg( QString( "unexpected old wkbType=%1" ).arg( type ) );
return ( QgsWKBTypes::Type ) type;
}
QGis::WkbType QGis::fromNewWkbType( QgsWKBTypes::Type type )
{
switch ( type )
{
case QgsWKBTypes::Point: return QGis::WKBPoint;
case QgsWKBTypes::LineString: return QGis::WKBLineString;
case QgsWKBTypes::Polygon: return QGis::WKBPolygon;
case QgsWKBTypes::MultiPoint: return QGis::WKBMultiPoint;
case QgsWKBTypes::MultiLineString: return QGis::WKBMultiLineString;
case QgsWKBTypes::MultiPolygon: return QGis::WKBMultiPolygon;
case QgsWKBTypes::NoGeometry: return QGis::WKBNoGeometry;
case QgsWKBTypes::PointZ: return QGis::WKBPoint25D;
case QgsWKBTypes::LineStringZ: return QGis::WKBLineString25D;
case QgsWKBTypes::PolygonZ: return QGis::WKBPolygon25D;
case QgsWKBTypes::MultiPointZ: return QGis::WKBMultiPoint25D;
case QgsWKBTypes::MultiLineStringZ: return QGis::WKBMultiLineString25D;
case QgsWKBTypes::MultiPolygonZ: return QGis::WKBMultiPolygon25D;
default: break;
}
QgsDebugMsg( QString( "unexpected new wkbType=%1" ).arg( type ) );
return ( QGis::WkbType ) type;
}
QGis::UnitType QGis::fromLiteral( const QString& literal, QGis::UnitType defaultType )
{
for ( unsigned int i = 0; i < ( sizeof( qgisUnitTypes ) / sizeof( qgisUnitTypes[0] ) ); i++ )
{
if ( literal == qgisUnitTypes[ i ] )
{
return static_cast<UnitType>( i );
}
}
return defaultType;
}
QString QGis::toLiteral( QGis::UnitType unit )
{
return QString( qgisUnitTypes[ static_cast<int>( unit )] );
}
QString QGis::tr( QGis::UnitType unit )
{
return QCoreApplication::translate( "QGis::UnitType", qPrintable( toLiteral( unit ) ) );
}
QGis::UnitType QGis::fromTr( const QString& literal, QGis::UnitType defaultType )
{
for ( unsigned int i = 0; i < ( sizeof( qgisUnitTypes ) / sizeof( qgisUnitTypes[0] ) ); i++ )
{
if ( literal == QGis::tr( static_cast<UnitType>( i ) ) )
{
return static_cast<UnitType>( i );
}
}
return defaultType;
}
double QGis::fromUnitToUnitFactor( QGis::UnitType fromUnit, QGis::UnitType toUnit )
{
#define DEGREE_TO_METER 111319.49079327358
#define FEET_TO_METER 0.3048
#define NMILE_TO_METER 1852.0
// Unify degree units
if ( fromUnit == QGis::DecimalDegrees || fromUnit == QGis::DegreesMinutesSeconds || fromUnit == QGis::DegreesDecimalMinutes )
fromUnit = QGis::Degrees;
if ( toUnit == QGis::DecimalDegrees || toUnit == QGis::DegreesMinutesSeconds || toUnit == QGis::DegreesDecimalMinutes )
toUnit = QGis::Degrees;
// Calculate the conversion factor between the specified units
if ( fromUnit != toUnit && fromUnit != QGis::UnknownUnit && toUnit != QGis::UnknownUnit )
{
switch ( fromUnit )
{
case QGis::Meters:
{
if ( toUnit == QGis::Feet ) return 1.0 / FEET_TO_METER;
if ( toUnit == QGis::Degrees ) return 1.0 / DEGREE_TO_METER;
if ( toUnit == QGis::NauticalMiles ) return 1.0 / NMILE_TO_METER;
break;
}
case QGis::Feet:
{
if ( toUnit == QGis::Meters ) return FEET_TO_METER;
if ( toUnit == QGis::Degrees ) return FEET_TO_METER / DEGREE_TO_METER;
if ( toUnit == QGis::NauticalMiles ) return FEET_TO_METER / NMILE_TO_METER;
break;
}
case QGis::Degrees:
{
if ( toUnit == QGis::Meters ) return DEGREE_TO_METER;
if ( toUnit == QGis::Feet ) return DEGREE_TO_METER / FEET_TO_METER;
if ( toUnit == QGis::NauticalMiles ) return DEGREE_TO_METER / NMILE_TO_METER;
break;
}
case QGis::NauticalMiles:
{
if ( toUnit == QGis::Meters ) return NMILE_TO_METER;
if ( toUnit == QGis::Feet ) return NMILE_TO_METER / FEET_TO_METER;
if ( toUnit == QGis::Degrees ) return NMILE_TO_METER / DEGREE_TO_METER;
break;
}
case QGis::UnknownUnit:
break;
}
}
return 1.0;
}
double QGis::permissiveToDouble( QString string, bool &ok )
{
//remove any thousands separators
string.remove( QLocale::system().groupSeparator() );
return QLocale::system().toDouble( string, &ok );
}
int QGis::permissiveToInt( QString string, bool &ok )
{
//remove any thousands separators
string.remove( QLocale::system().groupSeparator() );
return QLocale::system().toInt( string, &ok );
}
void *qgsMalloc( size_t size )
{
if ( size == 0 || long( size ) < 0 )
{
QgsDebugMsg( QString( "Negative or zero size %1." ).arg( size ) );
return NULL;
}
void *p = malloc( size );
if ( p == NULL )
{
QgsDebugMsg( QString( "Allocation of %1 bytes failed." ).arg( size ) );
}
return p;
}
void *qgsCalloc( size_t nmemb, size_t size )
{
if ( nmemb == 0 || long( nmemb ) < 0 || size == 0 || long( size ) < 0 )
{
QgsDebugMsg( QString( "Negative or zero nmemb %1 or size %2." ).arg( nmemb ).arg( size ) );
return NULL;
}
void *p = qgsMalloc( nmemb * size );
if ( p != NULL )
{
memset( p, 0, nmemb * size );
}
return p;
}
void qgsFree( void *ptr )
{
free( ptr );
}
bool qgsVariantLessThan( const QVariant& lhs, const QVariant& rhs )
{
switch ( lhs.type() )
{
case QVariant::Int:
return lhs.toInt() < rhs.toInt();
case QVariant::UInt:
return lhs.toUInt() < rhs.toUInt();
case QVariant::LongLong:
return lhs.toLongLong() < rhs.toLongLong();
case QVariant::ULongLong:
return lhs.toULongLong() < rhs.toULongLong();
case QVariant::Double:
return lhs.toDouble() < rhs.toDouble();
case QVariant::Char:
return lhs.toChar() < rhs.toChar();
case QVariant::Date:
return lhs.toDate() < rhs.toDate();
case QVariant::Time:
return lhs.toTime() < rhs.toTime();
case QVariant::DateTime:
return lhs.toDateTime() < rhs.toDateTime();
default:
return QString::localeAwareCompare( lhs.toString(), rhs.toString() ) < 0;
}
}
bool qgsVariantGreaterThan( const QVariant& lhs, const QVariant& rhs )
{
return ! qgsVariantLessThan( lhs, rhs );
}
QString qgsVsiPrefix( const QString& path )
{
if ( path.startsWith( "/vsizip/", Qt::CaseInsensitive ) ||
path.endsWith( ".zip", Qt::CaseInsensitive ) )
return "/vsizip/";
else if ( path.startsWith( "/vsitar/", Qt::CaseInsensitive ) ||
path.endsWith( ".tar", Qt::CaseInsensitive ) ||
path.endsWith( ".tar.gz", Qt::CaseInsensitive ) ||
path.endsWith( ".tgz", Qt::CaseInsensitive ) )
return "/vsitar/";
else if ( path.startsWith( "/vsigzip/", Qt::CaseInsensitive ) ||
path.endsWith( ".gz", Qt::CaseInsensitive ) )
return "/vsigzip/";
else
return "";
}
QGis::WkbType QGis::singleType( QGis::WkbType type )
{
switch ( type )
{
case WKBMultiPoint: return WKBPoint;
case WKBMultiLineString: return WKBLineString;
case WKBMultiPolygon: return WKBPolygon;
case WKBMultiPoint25D: return WKBPoint25D;
case WKBMultiLineString25D: return WKBLineString25D;
case WKBMultiPolygon25D: return WKBPolygon25D;
default: return fromNewWkbType( QgsWKBTypes::singleType( fromOldWkbType( type ) ) );
}
}
QGis::WkbType QGis::multiType( QGis::WkbType type )
{
switch ( type )
{
case WKBPoint: return WKBMultiPoint;
case WKBLineString: return WKBMultiLineString;
case WKBPolygon: return WKBMultiPolygon;
case WKBPoint25D: return WKBMultiPoint25D;
case WKBLineString25D: return WKBMultiLineString25D;
case WKBPolygon25D: return WKBMultiPolygon25D;
default: return fromNewWkbType( QgsWKBTypes::multiType( fromOldWkbType( type ) ) );
}
}
QGis::WkbType QGis::flatType( QGis::WkbType type )
{
switch ( type )
{
case WKBPoint25D: return WKBPoint;
case WKBLineString25D: return WKBLineString;
case WKBPolygon25D: return WKBPolygon;
case WKBMultiPoint25D: return WKBMultiPoint;
case WKBMultiLineString25D: return WKBMultiLineString;
case WKBMultiPolygon25D: return WKBMultiPolygon;
default: return fromNewWkbType( QgsWKBTypes::flatType( fromOldWkbType( type ) ) );
}
}
bool QGis::isSingleType( QGis::WkbType type )
{
return QgsWKBTypes::isSingleType( fromOldWkbType( type ) );
}
bool QGis::isMultiType( QGis::WkbType type )
{
return QgsWKBTypes::isMultiType( fromOldWkbType( type ) );
}
int QGis::wkbDimensions( QGis::WkbType type )
{
if ( type == WKBUnknown || type == WKBNoGeometry )
return 0;
QgsWKBTypes::Type wkbType = fromOldWkbType( type );
return 2 + ( QgsWKBTypes::hasZ( wkbType ) ? 1 : 0 ) + ( QgsWKBTypes::hasM( wkbType ) ? 1 : 0 );
}
const char *QGis::vectorGeometryType( QGis::GeometryType type )
{
switch ( type )
{
case Point: return "Point";
case Line: return "Line";
case Polygon: return "Polygon";
case UnknownGeometry: return "Unknown geometry";
case NoGeometry: return "No geometry";
default: return "Invalid type";
}
}
const char *QGis::featureType( QGis::WkbType type )
{
switch ( type )
{
case WKBUnknown: return "WKBUnknown";
case WKBPoint: return "WKBPoint";
case WKBLineString: return "WKBLineString";
case WKBPolygon: return "WKBPolygon";
case WKBMultiPoint: return "WKBMultiPoint";
case WKBMultiLineString: return "WKBMultiLineString";
case WKBMultiPolygon: return "WKBMultiPolygon";
case WKBNoGeometry: return "WKBNoGeometry";
case WKBPoint25D: return "WKBPoint25D";
case WKBLineString25D: return "WKBLineString25D";
case WKBPolygon25D: return "WKBPolygon25D";
case WKBMultiPoint25D: return "WKBMultiPoint25D";
case WKBMultiLineString25D: return "WKBMultiLineString25D";
case WKBMultiPolygon25D: return "WKBMultiPolygon25D";
default: return "invalid wkbtype";
}
}