Create top-level public/ header directory.

These are the only files that embedders of PDFium should be including.
They are entirely self-contained, and compile cleanly against -Wall so
as to not offend the code that may include them.

Having done this, we can see that chromium is pulling in two additional
files from the fpdfsdk/include/pdfwindow directory, which is not guaranteed
to work.

A few files are renamed, adding an "_" to make the names consistent.
The exception is fpdfview, which is doc'd as such in the doc.

Naturally, paths will need updating in a handful of files in chrome
when this rolls in.

BUG=pdfium:154
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1135913002

1 files changed, 82 insertions, 0 deletions

diff --git a/public/fpdf_save.h b/public/fpdf_save.h
new file mode 100644
index 0000000000..0909d5a447
--- /dev/null
+++ b/public/fpdf_save.h
@@ -0,0 +1,82 @@
+// 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 _FPDFSAVE_H_
+#define _FPDFSAVE_H_
+
+#include "fpdfview.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+// Structure for custom file write
+struct FPDF_FILEWRITE{
+
+	//
+	//Version number of the interface. Currently must be 1.
+	//
+	int version;
+
+	// 
+	// Method: WriteBlock
+	//			Output a block of data in your custom way.
+	// Interface Version:
+	//			1
+	// Implementation Required:
+	//			Yes
+	// Comments:
+	//			Called by function FPDF_SaveDocument
+	// Parameters:
+	//			pThis		-	Pointer to the structure itself
+	//			pData		-	Pointer to a buffer to output
+	//			size		-	The size of the buffer.
+	// Return value:
+	//			Should be non-zero if successful, zero for error.
+	//
+	int		(*WriteBlock)( FPDF_FILEWRITE* pThis, const void* pData, unsigned long size);
+
+};
+
+
+/** @brief Incremental. */
+#define FPDF_INCREMENTAL		1
+/** @brief No Incremental. */
+#define FPDF_NO_INCREMENTAL		2
+/** @brief Remove security. */
+#define FPDF_REMOVE_SECURITY	3
+
+// Function: FPDF_SaveAsCopy
+//			Saves the copy of specified document in custom way.
+// Parameters:	
+//			document		-	Handle to document. Returned by FPDF_LoadDocument and FPDF_CreateNewDocument.
+//			pFileWrite		-	A pointer to a custom file write structure.
+//			flags			-	The creating flags.
+// Return value:
+//			TRUE for succeed, FALSE for failed.
+//
+DLLEXPORT FPDF_BOOL STDCALL FPDF_SaveAsCopy(	FPDF_DOCUMENT document,FPDF_FILEWRITE * pFileWrite,
+												FPDF_DWORD flags );
+
+// Function: FPDF_SaveWithVersion
+//			Same as function ::FPDF_SaveAsCopy, except the file version of the saved document could be specified by user.
+// Parameters:	
+//			document		-	Handle to document.
+//			pFileWrite		-	A pointer to a custom file write structure.
+//			flags			-	The creating flags.
+//			fileVersion		-	The PDF file version. File version: 14 for 1.4, 15 for 1.5, ...
+// Return value:
+//			TRUE if succeed, FALSE if failed.
+//
+DLLEXPORT FPDF_BOOL STDCALL FPDF_SaveWithVersion(FPDF_DOCUMENT document,FPDF_FILEWRITE * pFileWrite,
+	FPDF_DWORD flags, int fileVersion);
+
+#ifdef __cplusplus
+};
+#endif
+
+#endif //_FPDFSAVE_H_