PdfPageView Struct Reference

PdfPageView class. More...

Public Member Functions
virtual void	Release ()=0
virtual int	GetDeviceWidth ()=0
	Returns a width of the page view in device space coordinates. More...
virtual int	GetDeviceHeight ()=0
	Returns a height of the page view in device space coordinates. More...
virtual void	GetDeviceMatrix (PdfMatrix *matrix)=0
	Gets the matrix that transforms user space coordinates to pageview coordinates. More...
virtual void	RectToDevice (PdfRect *rect, PdfDevRect *dev_rect)=0
virtual void	PointToDevice (PdfPoint *point, PdfDevPoint *dev_point)=0
	Transforms a point's coordinates from user space to device space. More...
virtual void	RectToPage (PdfDevRect *dev_rect, PdfRect *rect)=0
virtual void	PointToPage (PdfDevPoint *dev_point, PdfPoint *point)=0
	Transforms a point's coordinates from device space to user space. More...

Detailed Description

PdfPageView class.

A PdfPageView has methods to display the contents of a document page.

Member Function Documentation

GetDeviceHeight()

virtual int PdfPageView::GetDeviceHeight ( )

pure virtual

Returns a height of the page view in device space coordinates.

Returns

A page view height.

See also

PdfPageView::GetDeviceWidth

GetDeviceMatrix()

virtual void PdfPageView::GetDeviceMatrix ( PdfMatrix *  matrix )

pure virtual

Gets the matrix that transforms user space coordinates to pageview coordinates.

Parameters

matrix

(Filled by the method) Pointer to the pageview matrix.

GetDeviceWidth()

virtual int PdfPageView::GetDeviceWidth ( )

pure virtual

Returns a width of the page view in device space coordinates.

Returns

A page view width.

See also

PdfPageView::GetDeviceHeight

PointToDevice()

virtual void PdfPageView::PointToDevice ( PdfPoint *  point, PdfDevPoint *  dev_point  )

pure virtual

Transforms a point's coordinates from user space to device space.

Parameters

point	Pointer to the point whose coordinates are transformed, specified in user space coordinates.
dev_point	(Filled by the method) Pointer to a point containing the device space coordinates corresponding to point.

See also

PdfPageView::RectToDevice

PointToPage()

virtual void PdfPageView::PointToPage ( PdfDevPoint *  dev_point, PdfPoint *  point  )

pure virtual

Transforms a point's coordinates from device space to user space.

Parameters

dev_point	Pointer to the point whose coordinates are transformed, specified in device space coordinates.
point	(Filled by the method) Pointer to a point containing the user space coordinates corresponding to point.

See also

PdfPageView::RectToPage

RectToDevice()

virtual void PdfPageView::RectToDevice ( PdfRect *  rect, PdfDevRect *  dev_rect  )

pure virtual

Draws the contents of a page into the page view PsImage. This method just draws a bitmap. Provides control over the rendering with respect to PdfPageRenderParams. The PsImage remains in the cache as the page view class exists or next PdfPageViewDrawPage method is called.

Parameters

params	Rendering parameters.
cancel_proc	Callback to check for canceling operations.
cancel_data	Pointer to client data for the cancel procedure.

Returns

true if page was rendered, false otherwise.

See also

PdfPageView::GetImage Gets the image data for a page view. You should never depend on these objects lasting the lifetime of the document. You should extract the information you need from the object immediately and refer to it no further in your code. NOTE: Do not destroy the returned PsImage when done with it.

Returns

Acquired Image data for page view. Returns null if there are no image data.

See also

PdfPageView::DrawPage Transforms a rectangle's coordinates from user space to device space. The resulting PdfDevRect will be normalized, that is, left < right and top < bottom.

Parameters

rect	Pointer to the rectangle whose coordinates are transformed, specified in user space coordinates.
dev_rect	(Filled by the method) Pointer to a rectangle containing the device space coordinates corresponding to rect.

See also

PdfPageView::PointToDevice

RectToPage()

virtual void PdfPageView::RectToPage ( PdfDevRect *  dev_rect, PdfRect *  rect  )

pure virtual

Transforms a rectangle's coordinates from device space to user space. The resulting PdfDevRect will be normalized, that is, left < right and top < bottom.

Parameters

rect	Pointer to the rectangle whose coordinates are transformed, specified in device space coordinates.
dev_rect	(Filled by the method) Pointer to a rectangle containing the page space coordinates corresponding to rect.

See also

PdfPageView::PointToPage

Release()

virtual void PdfPageView::Release ( )

pure virtual

Releases the page view resources. NOTE: The caller can call PdfPageView::Release to optimize a memory handling. Otherwise the page is responsible for freeing PdfPageViews resources.

Parameters

page_view

The page view to delete.

See also

PdfPage::AcquirePageView