qgis.cpp File Reference

#include "qgis.h"
#include "moc_qgis.cpp"
#include "qgsversion.h"
#include <QCoreApplication>
#include <QColor>
#include <QDate>
#include <QTime>
#include <QLocale>
#include <QDateTime>
#include "qgsconfig.h"
#include "qgslogger.h"
#include "qgsgdalutils.h"
#include "qgswkbtypes.h"
#include <gdal.h>
#include <geos_c.h>
#include <ogr_api.h>

Include dependency graph for qgis.cpp:

Go to the source code of this file.

Macros
#define	qgis_str(x)
#define	qgis_xstr(x)

Functions
void	qgsFree (void *ptr)
	Frees the memory space pointed to by ptr.
void *	qgsMalloc (size_t size)
	Allocates size bytes and returns a pointer to the allocated memory.
double	qgsPermissiveToDouble (QString string, bool &ok)
	Converts a string to a double in a permissive way, e.g., allowing for incorrect numbers of digits between thousand separators.
int	qgsPermissiveToInt (QString string, bool &ok)
	Converts a string to an integer in a permissive way, e.g., allowing for incorrect numbers of digits between thousand separators.
qlonglong	qgsPermissiveToLongLong (QString string, bool &ok)
	Converts a string to an qlonglong in a permissive way, e.g., allowing for incorrect numbers of digits between thousand separators.
int	qgsVariantCompare (const QVariant &lhs, const QVariant &rhs, bool strictTypeCheck)
	Compares two QVariant values.
bool	qgsVariantEqual (const QVariant &lhs, const QVariant &rhs)
	Compares two QVariant values and returns whether they are equal, two NULL values are always treated as equal and 0 is not treated as equal with NULL.
bool	qgsVariantGreaterThan (const QVariant &lhs, const QVariant &rhs)
	Compares two QVariant values and returns whether the first is greater than the second.
bool	qgsVariantLessThan (const QVariant &lhs, const QVariant &rhs)
	Compares two QVariant values and returns whether the first is less than the second.
QString	qgsVsiPrefix (const QString &path)
	Returns a the vsi prefix which corresponds to a file path, or an empty string if the path is not associated with a vsi prefix.
uint	qHash (const QVariant &variant)
	Hash for QVariant.

Macro Definition Documentation

qgis_str

#define qgis_str

(

x

)

Value:

#x

Definition at line 41 of file qgis.cpp.

qgis_xstr

#define qgis_xstr

(

x

)

Value:

qgis_str(x)

Definition at line 40 of file qgis.cpp.

Function Documentation

qgsFree()

void qgsFree

(

void *

ptr

)

Frees the memory space pointed to by ptr.

Works like C free().

Parameters

ptr	pointer to memory space

Definition at line 126 of file qgis.cpp.

qgsMalloc()

void * qgsMalloc

(

size_t

size

)

Allocates size bytes and returns a pointer to the allocated memory.

Works like C malloc() but prints debug message by QgsLogger if allocation fails.

Parameters

size	size in bytes

Definition at line 104 of file qgis.cpp.

qgsPermissiveToDouble()

double qgsPermissiveToDouble	(	QString	string,
		bool &	ok )

Converts a string to a double in a permissive way, e.g., allowing for incorrect numbers of digits between thousand separators.

Parameters

string	string to convert
ok	will be set to true if conversion was successful

Returns

string converted to double if possible

See also

permissiveToInt

Definition at line 83 of file qgis.cpp.

qgsPermissiveToInt()

int qgsPermissiveToInt	(	QString	string,
		bool &	ok )

Converts a string to an integer in a permissive way, e.g., allowing for incorrect numbers of digits between thousand separators.

Parameters

string	string to convert
ok	will be set to true if conversion was successful

Returns

string converted to int if possible

See also

permissiveToDouble

Definition at line 90 of file qgis.cpp.

qgsPermissiveToLongLong()

qlonglong qgsPermissiveToLongLong	(	QString	string,
		bool &	ok )

Converts a string to an qlonglong in a permissive way, e.g., allowing for incorrect numbers of digits between thousand separators.

Parameters

string	string to convert
ok	will be set to true if conversion was successful

Returns

string converted to int if possible

See also

permissiveToInt

Since

QGIS 3.4

Definition at line 97 of file qgis.cpp.

qgsVariantCompare()

int qgsVariantCompare	(	const QVariant &	lhs,
		const QVariant &	rhs,
		bool	strictTypeCheck = false )

Compares two QVariant values.

Returns

< 0 if lhs < rhs, > 0 if lhs > rhs, or 0 if lhs == rhs

Useful for sorting lists of variants, correctly handling sorting of the various QVariant data types (such as strings, numeric values, dates and times)

Invalid < NULL < Values

Since QGIS 4.0 the strictTypeCheck argument can be used to specify that variants of different types should be compared using their userType ID only, and not attempt to check the actual variant value.

See also

qgsVariantLessThan()

qgsVariantGreaterThan()

Since

QGIS 3.44

Definition at line 131 of file qgis.cpp.

qgsVariantEqual()

bool qgsVariantEqual	(	const QVariant &	lhs,
		const QVariant &	rhs )

Compares two QVariant values and returns whether they are equal, two NULL values are always treated as equal and 0 is not treated as equal with NULL.

Parameters

lhs	first value
rhs	second value

Returns

true if values are equal

Definition at line 652 of file qgis.cpp.

qgsVariantGreaterThan()

bool qgsVariantGreaterThan	(	const QVariant &	lhs,
		const QVariant &	rhs )

Compares two QVariant values and returns whether the first is greater than the second.

Useful for sorting lists of variants, correctly handling sorting of the various QVariant data types (such as strings, numeric values, dates and times)

See also

qgsVariantLessThan()

qgsVariantCompare()

Definition at line 593 of file qgis.cpp.

qgsVariantLessThan()

bool qgsVariantLessThan	(	const QVariant &	lhs,
		const QVariant &	rhs )

Compares two QVariant values and returns whether the first is less than the second.

Useful for sorting lists of variants, correctly handling sorting of the various QVariant data types (such as strings, numeric values, dates and times)

Invalid < NULL < Values

See also

qgsVariantGreaterThan()

qgsVariantCompare()

Definition at line 588 of file qgis.cpp.

qgsVsiPrefix()

QString qgsVsiPrefix

(

const QString &

path

)

Returns a the vsi prefix which corresponds to a file path, or an empty string if the path is not associated with a vsi prefix.

Deprecated

QGIS 3.44. Use QgsGdalUtils::vsiPrefixForPath() instead.

Definition at line 598 of file qgis.cpp.

qHash()

uint qHash

(

const QVariant &

variant

)

Hash for QVariant.

Definition at line 603 of file qgis.cpp.