Class: QgsDoubleValidator

QgsDoubleValidator is a QLineEdit Validator that combines QDoubleValidator and QRegularExpressionValidator to allow users to enter doubles with both local and C interpretation as a fallback.

Added in version 3.14.

Class Hierarchy

Inheritance diagram of qgis.gui.QgsDoubleValidator

Base classes

QRegularExpressionValidator

QValidator

QObject

Methods

bottom

Returns top range limit

setBottom

Set top range limit

setMaxDecimals

Sets the number of decimals accepted by the validator to maxDecimals.

setRange

Set bottom and top range limits

setTop

Set top range limit

top

Returns top range limit

validate

Evaluates input string validity according to QRegularExpression and ability to be converted in double value.

Static Methods

toDouble

Converts input string to double value.
class qgis.gui.QgsDoubleValidator[source]

Bases: QRegularExpressionValidator

__init__(parent: QObject | None)

Constructor for QgsDoubleValidator.

Parameters:

parent (Optional[QObject])

__init__(expression: QRegularExpression, bottom: float, top: float, parent: QObject | None)

Constructor for QgsDoubleValidator.

Parameters:

  • bottom (float) – the minimal range limit accepted by the validator

  • top (float) – the maximal range limit accepted by the validator

  • parent (Optional[QObject]) – parent object

  • expression (QRegularExpression) – custom regular expression

__init__(bottom: float, top: float, parent: QObject | None)

Constructor for QgsDoubleValidator.

Parameters:

  • bottom (float) – the minimal range limit accepted by the validator

  • top (float) – the maximal range limit accepted by the validator

  • parent (Optional[QObject]) – parent object

__init__(bottom: float, top: float, decimal: int, parent: QObject | None)

Constructor for QgsDoubleValidator.

Parameters:

  • bottom (float) – the minimal range limit accepted by the validator

  • top (float) – the maximal range limit accepted by the validator

  • decimal (int) – the number of decimals accepted by the validator

  • parent (Optional[QObject]) – parent object

__init__(decimal: int, parent: QObject | None)

Constructor for QgsDoubleValidator.

Parameters:

  • decimal (int) – the number of decimals accepted by the validator

  • parent (Optional[QObject]) – parent object

Added in version 3.16.

bottom(self) → float[source]

Returns top range limit

See also

setBottom()

Return type:

float

setBottom(self, bottom: float)[source]

Set top range limit

See also

setTop()

See also

setRange()

Parameters:

bottom (float)

setMaxDecimals(self, maxDecimals: int)[source]

Sets the number of decimals accepted by the validator to maxDecimals.

Warning

setting decimals overrides any custom regular expression that was previously set

Added in version 3.22.

Parameters:

maxDecimals (int)

setRange(self, bottom: float, top: float)[source]

Set bottom and top range limits

See also

setBottom()

See also

setTop()

Parameters:

  • bottom (float)

  • top (float)

setTop(self, top: float)[source]

Set top range limit

See also

setBottom()

See also

setRange()

Parameters:

top (float)

static toDouble(input: str | None) → float[source]

Converts input string to double value. It uses locale interpretation first and C locale interpretation as fallback

Parameters:

input (Optional[str])

Return type:

float

top(self) → float[source]

Returns top range limit

See also

setTop()

Return type:

float

validate(self, input: str | None) → QValidator.State[source]

Evaluates input string validity according to QRegularExpression and ability to be converted in double value.

Parameters:

input (Optional[str])

Return type:

QValidator.State