QPdfDocumentRenderOptions 类

QPdfDocumentRenderOptions 类保持从 PDF 文档渲染页面的选项。 更多...

头：	#include <QPdfDocumentRenderOptions>

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公共类型

enum class	RenderFlag { None, Annotations, OptimizedForLcd, Grayscale, ForceHalftone, …, PathAliased }
flags	RenderFlags
enum class	Rotation { None, Clockwise90, Clockwise180, Clockwise270 }

公共函数

	QPdfDocumentRenderOptions ()
QPdfDocumentRenderOptions::RenderFlags	renderFlags () const
QPdfDocumentRenderOptions::Rotation	rotation () const
QRect	scaledClipRect () const
QSize	scaledSize () const
void	setRenderFlags (QPdfDocumentRenderOptions::RenderFlags flags )
void	setRotation (QPdfDocumentRenderOptions::Rotation rotation )
void	setScaledClipRect (const QRect & r )
void	setScaledSize (const QSize & s )

详细描述

另请参阅 QPdfDocument .

成员类型文档编制

enum class QPdfDocumentRenderOptions:: RenderFlag
flags QPdfDocumentRenderOptions:: RenderFlags

此枚举用于描述应该如何渲染页面。

常量	值	描述
QPdfDocumentRenderOptions::RenderFlag::None	0x000	默认值，表示无标志。
QPdfDocumentRenderOptions::RenderFlag::Annotations	0x001	The page is rendered with annotations.
QPdfDocumentRenderOptions::RenderFlag::OptimizedForLcd	0x002	The text of the page is rendered optimized for LCD display.
QPdfDocumentRenderOptions::RenderFlag::Grayscale	0x004	The page is rendered grayscale.
QPdfDocumentRenderOptions::RenderFlag::ForceHalftone	0x008	Always use halftones for rendering if the output image is stretched.
QPdfDocumentRenderOptions::RenderFlag::TextAliased	0x010	Anti-aliasing is disabled for rendering text.
QPdfDocumentRenderOptions::RenderFlag::ImageAliased	0x020	Anti-aliasing is disabled for rendering images.
QPdfDocumentRenderOptions::RenderFlag::PathAliased	0x040	Anti-aliasing is disabled for rendering paths.

RenderFlags 类型是 typedef 对于 QFlags <RenderFlag>。它存储 RenderFlag 值的 OR 组合。

另请参阅 QPdfDocument::render ().

enum class QPdfDocumentRenderOptions:: Rotation

此枚举描述渲染页面的旋转。

常量	值	描述
QPdfDocumentRenderOptions::Rotation::None	0	不旋转 (默认)
QPdfDocumentRenderOptions::Rotation::Clockwise90	1	顺时针旋转 90 度
QPdfDocumentRenderOptions::Rotation::Clockwise180	2	旋转 180 度
QPdfDocumentRenderOptions::Rotation::Clockwise270	3	顺时针旋转 270 度

另请参阅 QPdfDocument::render ().

成员函数文档编制

[constexpr noexcept] QPdfDocumentRenderOptions:: QPdfDocumentRenderOptions ()

构造 QPdfDocumentRenderOptions 对象。

[constexpr noexcept] QPdfDocumentRenderOptions::RenderFlags QPdfDocumentRenderOptions:: renderFlags () const

Returns the special flags used for rendering a page from a PDF document.

另请参阅 setRenderFlags ().

[constexpr noexcept] QPdfDocumentRenderOptions::Rotation QPdfDocumentRenderOptions:: rotation () const

Returns the rotation used for rendering a page from a PDF document.

另请参阅 setRotation ().

[constexpr noexcept] QRect QPdfDocumentRenderOptions:: scaledClipRect () const

Returns the rectangular region to be clipped from the page after having been scaled to scaledSize ().

另请参阅 setScaledClipRect ().

[constexpr noexcept] QSize QPdfDocumentRenderOptions:: scaledSize () const

Returns the size of the page to be rendered, in pixels.

另请参阅 setScaledSize ().

[constexpr noexcept] void QPdfDocumentRenderOptions:: setRenderFlags ( QPdfDocumentRenderOptions::RenderFlags flags )

Sets the special flags used for rendering a page from a PDF document.

另请参阅 renderFlags ().

[constexpr noexcept] void QPdfDocumentRenderOptions:: setRotation ( QPdfDocumentRenderOptions::Rotation rotation )

设置 rotation used for rendering a page from a PDF document.

另请参阅 rotation ().

[constexpr noexcept] void QPdfDocumentRenderOptions:: setScaledClipRect (const QRect & r )

Sets the rectangle region ( r ) to be clipped from the page after having been scaled to scaledSize ().

另请参阅 scaledClipRect ().

[constexpr noexcept] void QPdfDocumentRenderOptions:: setScaledSize (const QSize & s )

Sets the size ( s ) of the page to be rendered, in pixels.

另请参阅 scaledSize ().

内容

• 公共类型

• 公共函数

• 详细描述