QTextLength Class▲
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Header: QTextLength
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CMake:
find_package(Qt6 REQUIRED COMPONENTS Gui)
target_link_libraries(mytarget PRIVATE Qt6::Gui)
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qmake: QT += gui
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Group: QTextLength is part of Rich Text Processing APIs
Detailed Description▲
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.
See Also▲
See also QTextTable
Member Type Documentation▲
enum QTextLength::Type▲
This enum describes the different types a length object can have.
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Constant |
Value |
Description |
|---|---|---|
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QTextLength::VariableLength |
0 |
The width of the object is variable |
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QTextLength::FixedLength |
1 |
The width of the object is fixed |
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QTextLength::PercentageLength |
2 |
The width of the object is in percentage of the maximum width |
See Also▲
See also type()
Member Function Documentation▲
QTextLength::QTextLength()▲
Constructs a new length object which represents a variable size.
[explicit] QTextLength::QTextLength(QTextLength::Type type, qreal value)▲
Constructs a new length object of the given type and value.
qreal QTextLength::rawValue() const▲
Returns the constraint value that is specific for the type of the length. If the length is QTextLength::PercentageLength then the raw value is in percent, in the range of 0 to 100. If the length is QTextLength::FixedLength then that fixed amount is returned. For variable lengths, zero is returned.
QTextLength::Type QTextLength::type() const▲
qreal QTextLength::value(qreal maximumLength) const▲
Returns the effective length, constrained by the type of the length object and the specified maximumLength.
See Also▲
See also type()
QVariant QTextLength::operator QVariant() const▲
Returns the text length as a QVariant
bool QTextLength::operator!=(const QTextLength &other) const▲
Returns true if this text length is different from the other text length.
bool QTextLength::operator==(const QTextLength &other) const▲
Returns true if this text length is the same as the other text length.