QTextImageFormat 类

QTextImageFormat 类提供格式化信息为图像在 QTextDocument . 更多...

头：	#include <QTextImageFormat>
qmake:	QT += gui
继承：	QTextCharFormat

所有成员列表，包括继承成员

注意： 此类的所有函数可重入 .

公共函数

	QTextImageFormat ()
qreal	height () const
bool	isValid () const
QString	name () const
int	quality () const
void	setHeight (qreal height )
void	setName (const QString & name )
void	setQuality (int quality = 100)
void	setWidth (qreal width )
qreal	width () const

详细描述

Inline images are represented by a Unicode value U+FFFC (OBJECT REPLACEMENT CHARACTER) which has an associated QTextImageFormat. The image format specifies a name with setName () that is used to locate the image. The size of the rectangle that the image will occupy is specified in pixels using setWidth () 和 setHeight (). The desired image quality may be set with setQuality ().

Images can be supplied in any format for which Qt has an image reader, so SVG drawings can be included alongside PNG, TIFF and other bitmap formats.

另请参阅 QImage and QImageReader .

成员函数文档编制

QTextImageFormat:: QTextImageFormat ()

创建新的图像格式对象。

qreal QTextImageFormat:: height () const

Returns the height of the rectangle occupied by the image.

另请参阅 width () 和 setHeight ().

bool QTextImageFormat:: isValid () const

返回 true if this image format is valid; otherwise returns false .

QString QTextImageFormat:: name () const

Returns the name of the image. The name refers to an entry in the application's resources file.

另请参阅 setName ().

int QTextImageFormat:: quality () const

Returns the value set by setQuality ().

该函数在 Qt 5.12 引入。

另请参阅 setQuality ().

void QTextImageFormat:: setHeight ( qreal height )

设置 height of the rectangle occupied by the image.

另请参阅 height () 和 setWidth ().

void QTextImageFormat:: setName (const QString & name )

设置 name of the image. The name is used to locate the image in the application's resources.

另请参阅 name ().

void QTextImageFormat:: setQuality ( int quality = 100)

Sets the quality that should be used by exporters when exporting the image. QTextDocumentWriter will export jpg images with the quality set here when exporting to ODF files if quality is set to a value between 0 and 100. Or it will export png images if quality is set to 100 (default) or greater.

该函数在 Qt 5.12 引入。

另请参阅 quality ().

void QTextImageFormat:: setWidth ( qreal width )

设置 width of the rectangle occupied by the image.

另请参阅 width () 和 setHeight ().

qreal QTextImageFormat:: width () const

Returns the width of the rectangle occupied by the image.

另请参阅 height () 和 setWidth ().