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. More...
bool	contains (const QgsRange< T > &other) const
	Returns true if this range contains another range. More...
bool	contains (T element) const
	Returns true if this range contains a specified element. More...
bool	includeLower () const
	Returns true if the lower bound is inclusive, or false if the lower bound is exclusive. More...
bool	includeUpper () const
	Returns true if the upper bound is inclusive, or false if the upper bound is exclusive. More...
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. More...
bool	isSingleton () const
	Returns true if the range consists only of a single value or instant. More...
T	lower () const
	Returns the lower bound of the range. More...
bool	overlaps (const QgsRange< T > &other) const
	Returns true if this range overlaps another range. More...
T	upper () const
	Returns the upper bound of the range. More...

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)

Since

QGIS 3.0

Definition at line 42 of file qgsrange.h.

Constructor & Destructor Documentation

QgsRange()

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 50 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 104 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 124 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 77 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 85 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 92 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 98 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 62 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 143 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 69 of file qgsrange.h.

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

• /tmp/buildd/qgis-3.6.0+99unstable/src/core/qgsrange.h