QgsRange< T > Class Template Reference

A template based class for storing ranges (lower to upper values). More...

#include <qgsrange.h>

Public Member Functions
	QgsRange (T lower, T upper, bool includeLower=true, bool includeUpper=true)
	Constructor for QgsRange.
	QgsRange (T lower, T upper, Qgis::RangeLimits limits)
	Constructor for QgsRange.
bool	contains (const QgsRange< T > &other) const
	Returns true if this range contains another range.
bool	contains (T element) const
	Returns true if this range contains a specified element.
bool	includeLower () const
	Returns true if the lower bound is inclusive, or false if the lower bound is exclusive.
bool	includeUpper () const
	Returns true if the upper bound is inclusive, or false if the upper bound is exclusive.
bool	isEmpty () const
	Returns true if the range is empty, ie the lower bound equals (or exceeds) the upper bound and either the bounds are exclusive.
bool	isSingleton () const
	Returns true if the range consists only of a single value or instant.
T	lower () const
	Returns the lower bound of the range.
bool	operator!= (const QgsRange< T > &other) const
bool	operator== (const QgsRange< T > &other) const
bool	overlaps (const QgsRange< T > &other) const
	Returns true if this range overlaps another range.
Qgis::RangeLimits	rangeLimits () const
	Returns the limit handling of the range.
T	upper () const
	Returns the upper bound of the range.

Protected Attributes
bool	mIncludeLower = true
bool	mIncludeUpper = true
T	mLower
T	mUpper

Detailed Description

template<typename T>
class QgsRange< T >

A template based class for storing ranges (lower to upper values).

QgsRange classes represent a range of values of some element type. For instance, ranges of int might be used to represent integer ranges.

Ranges can indicate whether the upper and lower values are inclusive or exclusive. The inclusivity or exclusivity of bounds is considered when determining things like whether ranges overlap or during calculation of range intersections.

See also

QgsDoubleRange

QgsIntRange

Note

not available in Python bindings (but class provided for template-based inheritance)

Definition at line 47 of file qgsrange.h.

Constructor & Destructor Documentation

QgsRange() [1/2]

template<typename T>

QgsRange< T >::QgsRange ( T lower, T upper, bool includeLower = true, bool includeUpper = true )

inline

Constructor for QgsRange.

The lower and upper bounds are specified, and optionally whether or not these bounds are included in the range.

Definition at line 54 of file qgsrange.h.

QgsRange() [2/2]

template<typename T>

QgsRange< T >::QgsRange ( T lower, T upper, Qgis::RangeLimits limits )

inline

Constructor for QgsRange.

The lower and upper bounds are specified, and whether or not these bounds are included in the range.

Since

QGIS 3.38

Definition at line 67 of file qgsrange.h.

Member Function Documentation

contains() [1/2]

template<typename T>

bool QgsRange< T >::contains ( const QgsRange< T > & other ) const

inline

Returns true if this range contains another range.

See also

overlaps()

Definition at line 138 of file qgsrange.h.

contains() [2/2]

template<typename T>

bool QgsRange< T >::contains ( T element ) const

inline

Returns true if this range contains a specified element.

Definition at line 154 of file qgsrange.h.

includeLower()

template<typename T>

bool QgsRange< T >::includeLower ( ) const

inline

Returns true if the lower bound is inclusive, or false if the lower bound is exclusive.

See also

lower()

includeUpper()

Definition at line 94 of file qgsrange.h.

includeUpper()

template<typename T>

bool QgsRange< T >::includeUpper ( ) const

inline

Returns true if the upper bound is inclusive, or false if the upper bound is exclusive.

See also

upper()

includeLower()

Definition at line 102 of file qgsrange.h.

isEmpty()

template<typename T>

bool QgsRange< T >::isEmpty ( ) const

inline

Returns true if the range is empty, ie the lower bound equals (or exceeds) the upper bound and either the bounds are exclusive.

See also

isSingleton()

Definition at line 126 of file qgsrange.h.

isSingleton()

template<typename T>

bool QgsRange< T >::isSingleton ( ) const

inline

Returns true if the range consists only of a single value or instant.

See also

isEmpty()

Definition at line 132 of file qgsrange.h.

lower()

template<typename T>

T QgsRange< T >::lower ( ) const

inline

Returns the lower bound of the range.

See also

upper()

includeLower()

Definition at line 79 of file qgsrange.h.

operator!=()

template<typename T>

bool QgsRange< T >::operator!= ( const QgsRange< T > & other ) const

inline

Definition at line 193 of file qgsrange.h.

operator==()

template<typename T>

bool QgsRange< T >::operator== ( const QgsRange< T > & other ) const

inline

Definition at line 191 of file qgsrange.h.

overlaps()

template<typename T>

bool QgsRange< T >::overlaps ( const QgsRange< T > & other ) const

inline

Returns true if this range overlaps another range.

See also

contains()

Definition at line 171 of file qgsrange.h.

rangeLimits()

template<typename T>

Qgis::RangeLimits QgsRange< T >::rangeLimits ( ) const

inline

Returns the limit handling of the range.

Since

QGIS 3.38

Definition at line 109 of file qgsrange.h.

upper()

template<typename T>

T QgsRange< T >::upper ( ) const

inline

Returns the upper bound of the range.

See also

lower()

includeUpper()

Definition at line 86 of file qgsrange.h.

Member Data Documentation

mIncludeLower

template<typename T>

bool QgsRange< T >::mIncludeLower = true

protected

Definition at line 198 of file qgsrange.h.

mIncludeUpper

template<typename T>

bool QgsRange< T >::mIncludeUpper = true

protected

Definition at line 199 of file qgsrange.h.

mLower

template<typename T>

T QgsRange< T >::mLower

protected

Definition at line 196 of file qgsrange.h.

mUpper

template<typename T>

T QgsRange< T >::mUpper

protected

Definition at line 197 of file qgsrange.h.

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The documentation for this class was generated from the following file:

• /build/qgis-4.0.0+99sid/src/core/qgsrange.h