QPageRanges 类

QPageRanges 类表示页面范围的集合。 更多...

头：	#include <QPageRanges>
CMake:	find_package(Qt6 REQUIRED COMPONENTS Gui) target_link_libraries(mytarget PRIVATE Qt6::Gui)
qmake:	QT += gui
Since:	Qt 6.0

• 所有成员列表，包括继承成员
• QPageRanges is part of 描绘类 , 打印机和打印 API ，和 隐式共享类 .

公共类型

struct

Range

公共函数

	QPageRanges ()
	QPageRanges (const QPageRanges & other )
	QPageRanges (QPageRanges && other )
	~QPageRanges ()
void	addPage (int pageNumber )
void	addRange (int from , int to )
void	clear ()
bool	contains (int pageNumber ) const
int	firstPage () const
bool	isEmpty () const
int	lastPage () const
QList<QPageRanges::Range>	toRangeList () const
QString	toString () const
QPageRanges &	operator= (const QPageRanges & other )
QPageRanges &	operator= (QPageRanges && other )

静态公共成员

QPageRanges

fromString (const QString & ranges )

相关非成员

QDataStream &	operator<< (QDataStream & stream , const QPageRanges & pageRanges )
QDataStream &	operator>> (QDataStream & stream , QPageRanges & pageRanges )

详细描述

使用 QPagedPaintDevice::pageRanges () to access the collection of page ranges associated with a paged device.

成员函数文档编制

QPageRanges:: QPageRanges ()

Constructs an empty QPageRanges object.

[noexcept] QPageRanges:: QPageRanges (const QPageRanges & other )

Constructs a QPageRanges object by copying other .

[noexcept] QPageRanges:: QPageRanges ( QPageRanges && other )

Constructs a QPageRanges object by moving from other .

[noexcept] QPageRanges:: ~QPageRanges ()

Destroys the page ranges.

void QPageRanges:: addPage ( int pageNumber )

Adds the single page pageNumber to the ranges.

注意： Page numbers start with 1. Attempts to add page numbers smaller than 1 will be ignored with a warning.

void QPageRanges:: addRange ( int from , int to )

Adds the range specified with from and to to the ranges.

注意： Page numbers start with 1. Attempts to add page numbers smaller than 1 will be ignored with a warning.

void QPageRanges:: clear ()

Removes all page ranges.

bool QPageRanges:: contains ( int pageNumber ) const

返回 true if the ranges include the page pageNumber ；否则返回 false .

int QPageRanges:: firstPage () const

Returns the index of the first page covered by the page ranges, or 0 if the page ranges are empty.

[static] QPageRanges QPageRanges:: fromString (const QString & ranges )

Constructs and returns a QPageRanges object populated with the ranges from the string representation.

QPrinter printer;
QPageRanges ranges = QPageRanges::fromString("1-3,6-7");
printer.setPageRanges(ranges);
					

In case of parsing error, returns an empty QPageRanges 对象。

另请参阅 isEmpty ().

bool QPageRanges:: isEmpty () const

返回 true if the ranges are empty; otherwise returns false .

int QPageRanges:: lastPage () const

Returns the index of the last page covered by the page ranges, or 0 if the page ranges are empty.

QList < QPageRanges::Range > QPageRanges:: toRangeList () const

Returns a list with the values of the ranges.

QString QPageRanges:: toString () const

Returns the string representation of the page ranges.

[noexcept] QPageRanges &QPageRanges:: operator= (const QPageRanges & other )

赋值 other 到此 QPageRanges 对象。

[noexcept] QPageRanges &QPageRanges:: operator= ( QPageRanges && other )

移动 other 到此 QPageRanges 对象。

相关非成员

QDataStream & operator<< ( QDataStream & stream , const QPageRanges & pageRanges )

写入 pageRanges to stream as a range string.

另请参阅 QPageRanges::toString .

QDataStream & operator>> ( QDataStream & stream , QPageRanges & pageRanges )

Reads a page ranges string from stream and stores it in pageRanges .

另请参阅 QPageRanges::fromString .

内容

• 公共类型

• 公共函数

• 静态公共成员

• 相关非成员

• 详细描述