diff options
Diffstat (limited to 'public/fpdf_dataavail.h')
| -rw-r--r-- | public/fpdf_dataavail.h | 239 |
1 files changed, 119 insertions, 120 deletions
diff --git a/public/fpdf_dataavail.h b/public/fpdf_dataavail.h index bb929f4c70..b303560e06 100644 --- a/public/fpdf_dataavail.h +++ b/public/fpdf_dataavail.h @@ -1,20 +1,20 @@ // Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. - + // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com -#ifndef _FPDF_DATAAVAIL_H_ -#define _FPDF_DATAAVAIL_H_ +#ifndef PUBLIC_FPDF_DATAAVAIL_H_ +#define PUBLIC_FPDF_DATAAVAIL_H_ #include <stddef.h> // For size_t. #include "fpdfview.h" /** The result of the process which check linearized PDF. */ -#define FSDK_IS_LINEARIZED 1 -#define FSDK_NOT_LINEARIZED 0 -#define FSDK_UNKNOW_LINEARIZED -1 +#define FSDK_IS_LINEARIZED 1 +#define FSDK_NOT_LINEARIZED 0 +#define FSDK_UNKNOW_LINEARIZED -1 #ifdef __cplusplus @@ -23,201 +23,200 @@ extern "C" { /** * Interface: FX_FILEAVAIL - * Interface for checking whether the section of the file is available. + * Interface for checking whether the section of the file is available. */ typedef struct _FX_FILEAVAIL { - /** - * Version number of the interface. Currently must be 1. - */ - int version; - - /** - * Method: IsDataAvail - * Report whether the specified data section is available. A section is available only if all bytes in the section is available. - * Interface Version: - * 1 - * Implementation Required: - * Yes - * Parameters: - * pThis - Pointer to the interface structure itself. - * offset - The offset of the data section in the file. - * size - The size of the data section - * Return Value: - * true means the specified data section is available. - * Comments: - * Called by Foxit SDK to check whether the data section is ready. - */ - FPDF_BOOL (*IsDataAvail)(struct _FX_FILEAVAIL* pThis, size_t offset, size_t size); + /** + * Version number of the interface. Currently must be 1. + */ + int version; + + /** + * Method: IsDataAvail + * Report whether the specified data section is available. A section is available only if all bytes in the section is available. + * Interface Version: + * 1 + * Implementation Required: + * Yes + * Parameters: + * pThis - Pointer to the interface structure itself. + * offset - The offset of the data section in the file. + * size - The size of the data section + * Return Value: + * true means the specified data section is available. + * Comments: + * Called by Foxit SDK to check whether the data section is ready. + */ + FPDF_BOOL (*IsDataAvail)(struct _FX_FILEAVAIL* pThis, size_t offset, size_t size); } FX_FILEAVAIL; typedef void* FPDF_AVAIL; /** * Function: FPDFAvail_Create -* Create a document availability provider. +* Create a document availability provider. * -* Parameters: -* file_avail - Pointer to file availability interface to check availability of file data. -* file - Pointer to a file access interface for reading data from file. +* Parameters: +* file_avail - Pointer to file availability interface to check availability of file data. +* file - Pointer to a file access interface for reading data from file. * Return value: -* A handle to the document availability provider. NULL for error. +* A handle to the document availability provider. NULL for error. * Comments: -* Application must call FPDFAvail_Destroy when done with the availability provider. +* Application must call FPDFAvail_Destroy when done with the availability provider. * Notes: -* The method can not support to load a document which consists of dynamic XFA fields now. +* The method can not support to load a document which consists of dynamic XFA fields now. */ DLLEXPORT FPDF_AVAIL STDCALL FPDFAvail_Create(FX_FILEAVAIL* file_avail, FPDF_FILEACCESS* file); /** * Function: FPDFAvail_Destroy -* Destroy a document availibity provider. +* Destroy a document availibity provider. * -* Parameters: -* avail - Handle to document availability provider returned by FPDFAvail_Create +* Parameters: +* avail - Handle to document availability provider returned by FPDFAvail_Create * Return Value: -* None. +* None. */ DLLEXPORT void STDCALL FPDFAvail_Destroy(FPDF_AVAIL avail); /** * Interface: FX_DOWNLOADHINTS - * Download hints interface. Used to receive hints for further downloading. + * Download hints interface. Used to receive hints for further downloading. */ typedef struct _FX_DOWNLOADHINTS { - /** - * Version number of the interface. Currently must be 1. - */ - int version; - - /** - * Method: AddSegment - * Add a section to be downloaded. - * Interface Version: - * 1 - * Implementation Required: - * Yes - * Parameters: - * pThis - Pointer to the interface structure itself. - * offset - The offset of the hint reported to be downloaded. - * size - The size of the hint reported to be downloaded. - * Return Value: - * None. - * Comments: - * Called by Foxit SDK to report some downloading hints for download manager. - * The position and size of section may be not accurate, part of the section might be already available. - * The download manager must deal with that to maximize download efficiency. - */ - void (*AddSegment)(struct _FX_DOWNLOADHINTS* pThis, size_t offset, size_t size); + /** + * Version number of the interface. Currently must be 1. + */ + int version; + + /** + * Method: AddSegment + * Add a section to be downloaded. + * Interface Version: + * 1 + * Implementation Required: + * Yes + * Parameters: + * pThis - Pointer to the interface structure itself. + * offset - The offset of the hint reported to be downloaded. + * size - The size of the hint reported to be downloaded. + * Return Value: + * None. + * Comments: + * Called by Foxit SDK to report some downloading hints for download manager. + * The position and size of section may be not accurate, part of the section might be already available. + * The download manager must deal with that to maximize download efficiency. + */ + void (*AddSegment)(struct _FX_DOWNLOADHINTS* pThis, size_t offset, size_t size); } FX_DOWNLOADHINTS; /** * Function: FPDFAvail_IsDocAvail -* Check whether the document is ready for loading, if not, get download hints. +* Check whether the document is ready for loading, if not, get download hints. * -* Parameters: -* avail - Handle to document availability provider returned by FPDFAvail_Create -* hints - Pointer to a download hints interface, receiving generated hints +* Parameters: +* avail - Handle to document availability provider returned by FPDFAvail_Create +* hints - Pointer to a download hints interface, receiving generated hints * Return value: -* Non-zero for page is fully available, 0 for page not yet available. +* Non-zero for page is fully available, 0 for page not yet available. * Comments: -* The application should call this function whenever new data arrived, and process all the -* generated download hints if any, until the function returns non-zero value. Then the -* application can call FPDFAvail_GetDocument() to get a document handle. +* The application should call this function whenever new data arrived, and process all the +* generated download hints if any, until the function returns non-zero value. Then the +* application can call FPDFAvail_GetDocument() to get a document handle. */ DLLEXPORT int STDCALL FPDFAvail_IsDocAvail(FPDF_AVAIL avail, FX_DOWNLOADHINTS* hints); /** * Function: FPDFAvail_GetDocument -* Get document from the availability provider. +* Get document from the availability provider. * * Parameters: -* avail - Handle to document availability provider returned by FPDFAvail_Create -* password - Optional password for decrypting the PDF file. +* avail - Handle to document availability provider returned by FPDFAvail_Create +* password - Optional password for decrypting the PDF file. * Return value: -* Handle to the document. +* Handle to the document. * Comments: -* After FPDFAvail_IsDocAvail() returns TRUE, the application should call this function to -* get the document handle. To close the document, use FPDF_CloseDocument function. +* After FPDFAvail_IsDocAvail() returns TRUE, the application should call this function to +* get the document handle. To close the document, use FPDF_CloseDocument function. */ DLLEXPORT FPDF_DOCUMENT STDCALL FPDFAvail_GetDocument(FPDF_AVAIL avail, FPDF_BYTESTRING password); /** * Function: FPDFAvail_GetFirstPageNum -* Get page number for the first available page in a linearized PDF +* Get page number for the first available page in a linearized PDF * * Parameters: -* doc - A document handle returned by FPDFAvail_GetDocument +* doc - A document handle returned by FPDFAvail_GetDocument * Return Value: -* Zero-based index for the first available page. +* Zero-based index for the first available page. * Comments: -* For most linearized PDFs, the first available page would be just the first page, however, -* some PDFs might make other page to be the first available page. -* For non-linearized PDF, this function will always return zero. +* For most linearized PDFs, the first available page would be just the first page, however, +* some PDFs might make other page to be the first available page. +* For non-linearized PDF, this function will always return zero. */ DLLEXPORT int STDCALL FPDFAvail_GetFirstPageNum(FPDF_DOCUMENT doc); /** * Function: FPDFAvail_IsPageAvail -* Check whether a page is ready for loading, if not, get download hints. +* Check whether a page is ready for loading, if not, get download hints. * -* Parameters: -* avail - Handle to document availability provider returned by FPDFAvail_Create -* page_index - Index number of the page. 0 for the first page. -* hints - Pointer to a download hints interface, receiving generated hints +* Parameters: +* avail - Handle to document availability provider returned by FPDFAvail_Create +* page_index - Index number of the page. 0 for the first page. +* hints - Pointer to a download hints interface, receiving generated hints * Return value: -* Non-zero for page is fully available, 0 for page not yet available. +* Non-zero for page is fully available, 0 for page not yet available. * Comments: -* This function call be called only after FPDFAvail_GetDocument if called. -* The application should call this function whenever new data arrived, and process all the -* generated download hints if any, until the function returns non-zero value. Then the -* application can perform page loading. +* This function call be called only after FPDFAvail_GetDocument if called. +* The application should call this function whenever new data arrived, and process all the +* generated download hints if any, until the function returns non-zero value. Then the +* application can perform page loading. */ DLLEXPORT int STDCALL FPDFAvail_IsPageAvail(FPDF_AVAIL avail, int page_index, FX_DOWNLOADHINTS* hints); /** * Function: FPDFAvail_ISFormAvail -* Check whether Form data is ready for init, if not, get download hints. +* Check whether Form data is ready for init, if not, get download hints. * -* Parameters: -* avail - Handle to document availability provider returned by FPDFAvail_Create -* hints - Pointer to a download hints interface, receiving generated hints +* Parameters: +* avail - Handle to document availability provider returned by FPDFAvail_Create +* hints - Pointer to a download hints interface, receiving generated hints * Return value: -* Non-zero for Form data is fully available, 0 for Form data not yet available. -* Details: -1 - error, the input parameter not correct, such as hints is null. -* 0 - data not available -* 1 - data available -* 2 - no form data. +* Non-zero for Form data is fully available, 0 for Form data not yet available. +* Details: -1 - error, the input parameter not correct, such as hints is null. +* 0 - data not available +* 1 - data available +* 2 - no form data. * Comments: -* This function call be called only after FPDFAvail_GetDocument if called. -* The application should call this function whenever new data arrived, and process all the -* generated download hints if any, until the function returns non-zero value. Then the -* application can perform page loading. Recommend to call FPDFDOC_InitFormFillEnvironment -* after the function returns non-zero value. +* This function call be called only after FPDFAvail_GetDocument if called. +* The application should call this function whenever new data arrived, and process all the +* generated download hints if any, until the function returns non-zero value. Then the +* application can perform page loading. Recommend to call FPDFDOC_InitFormFillEnvironment +* after the function returns non-zero value. */ DLLEXPORT int STDCALL FPDFAvail_IsFormAvail(FPDF_AVAIL avail, FX_DOWNLOADHINTS* hints); /** * Function: FPDFAvail_IsLinearized -* To check whether a document is Linearized PDF file. +* To check whether a document is Linearized PDF file. * * Parameters: -* avail - Handle to document availability provider returned by FPDFAvail_Create +* avail - Handle to document availability provider returned by FPDFAvail_Create * Return value: -* return TRUE means the document is linearized PDF else not. -* FSDK_IS_LINEARIZED is a linearize file. -* FSDK_NOT_LINEARIZED is not a linearize file. -* FSDK_UNKNOW_LINEARIZED don't know whether the file is a linearize file. +* return TRUE means the document is linearized PDF else not. +* FSDK_IS_LINEARIZED is a linearize file. +* FSDK_NOT_LINEARIZED is not a linearize file. +* FSDK_UNKNOW_LINEARIZED don't know whether the file is a linearize file. * Comments: -* It return TRUE/FALSE as soon as we have first 1K data. If the file's size less than -* 1K,we don't known whether the PDF is a linearized file. +* It return TRUE/FALSE as soon as we have first 1K data. If the file's size less than +* 1K,we don't known whether the PDF is a linearized file. * */ DLLEXPORT FPDF_BOOL STDCALL FPDFAvail_IsLinearized(FPDF_AVAIL avail); #ifdef __cplusplus -}; -#endif - +} #endif +#endif // PUBLIC_FPDF_DATAAVAIL_H_ |