QTextLength ¶

概要 ¶

详细描述 ¶

When we specify a value for the length of an element in a text document, we often need to provide some other information so that the length is used in the way we expect. For example, when we specify a table width, the value can represent a fixed number of pixels, or it can be a percentage value. This information changes both the meaning of the value and the way it is used.

Generally, this class is used to specify table widths. These can be specified either as a fixed amount of pixels, as a percentage of the containing frame’s width, or by a variable width that allows it to take up just the space it requires.

另请参阅

QTextTable

class QTextLength ¶

QTextLength(type, value)

QTextLength(QTextLength)

param type

Type

param QTextLength

QTextLength

param value

qreal

Constructs a new length object which represents a variable size.

Constructs a new length object of the given type and value .

PySide2.QtGui.QTextLength. Type ¶

This enum describes the different types a length object can have.

常量	描述
QTextLength.VariableLength	The width of the object is variable
QTextLength.FixedLength	The width of the object is fixed
QTextLength.PercentageLength	The width of the object is in percentage of the maximum width

另请参阅

type()

PySide2.QtGui.QTextLength. __ne__ ( other ) ¶

参数

other – QTextLength

返回类型

bool

返回 true if this text length is different from the other text length.

PySide2.QtGui.QTextLength. __eq__ ( other ) ¶

参数

other – QTextLength

返回类型

bool

返回 true if this text length is the same as the other text length.

PySide2.QtGui.QTextLength. rawValue ( ) ¶

返回类型

qreal

Returns the constraint value that is specific for the type of the length. If the length is PercentageLength then the raw value is in percent, in the range of 0 to 100. If the length is FixedLength then that fixed amount is returned. For variable lengths, zero is returned.

PySide2.QtGui.QTextLength. type ( ) ¶

返回类型

Type

Returns the type of this length object.

另请参阅

Type

PySide2.QtGui.QTextLength. value ( maximumLength ) ¶

参数

maximumLength – qreal

返回类型

qreal

Returns the effective length, constrained by the type of the length object and the specified maximumLength .

另请参阅

type()