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Issue 1136703003: Merge to XFA: Create top-level public/ header directory. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa
Patch Set: Created 5 years, 7 months ago
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1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #ifndef _FPDF_PROGRESSIVE_H_
8 #define _FPDF_PROGRESSIVE_H_
9
10 #include "fpdfview.h"
11
12 //Flags for progressive process status.
13 #define FPDF_RENDER_READER 0
14 #define FPDF_RENDER_TOBECOUNTINUED 1
15 #define FPDF_RENDER_DONE 2
16 #define FPDF_RENDER_FAILED 3
17
18
19 #ifdef __cplusplus
20 extern "C" {
21 #endif
22
23
24 //IFPDF_RENDERINFO interface.
25 typedef struct _IFSDK_PAUSE
26 {
27 /**
28 * Version number of the interface. Currently must be 1.
29 **/
30 int version;
31
32 /*
33 * Method: NeedToPauseNow
34 * Check if we need to pause a progressive process now.
35 * Interface Version:
36 * 1
37 * Implementation Required:
38 * yes
39 * Parameters:
40 * pThis - Pointer to the interface structure itself
41 * Return Value:
42 * Non-zero for pause now, 0 for continue.
43 *
44 */
45 FPDF_BOOL (*NeedToPauseNow) (struct _IFSDK_PAUSE* pThis);
46
47 //A user defined data pointer, used by user's application. Can be NULL.
48 void* user;
49 } IFSDK_PAUSE;
50
51 // Function: FPDF_RenderPageBitmap_Start
52 // Start to render page contents to a device independent bi tmap progressively.
53 // Parameters:
54 // bitmap - Handle to the device independent bitmap (as the output buffer).
55 // Bitmap handle can be cre ated by FPDFBitmap_Create function.
56 // page - Handle to the page. Returned by FPDF_LoadPage function.
57 // start_x - Left pixel position of the displ ay area in the bitmap coordinate.
58 // start_y - Top pixel position of the displa y area in the bitmap coordinate.
59 // size_x - Horizontal size (in pixels) for displaying the page.
60 // size_y - Vertical size (in pixels) for di splaying the page.
61 // rotate - Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise),
62 // 2 (rotated 180 d egrees), 3 (rotated 90 degrees counter-clockwise).
63 // flags - 0 for normal display, or combina tion of flags defined above.
64 // pause - The IFSDK_PAUSE interface.A call back mechanism allowing the page rendering process
65 // Return value:
66 // Rendering Status. See flags for progressive process stat us for the details.
67 // Notes:
68 // The method cannot not support to render page which the d ocument consists of dynamic XFA fields.
69 //
70 DLLEXPORT int STDCALL FPDF_RenderPageBitmap_Start(FPDF_BITMAP bitmap, FPDF_PAGE page, int start_x, int start_y, int size_x,
71 int size_y, int rotate, int flags,IFSDK_PAUSE * pause);
72
73 // Function: FPDF_RenderPage_Continue
74 // Continue rendering a PDF page.
75 // Parameters:
76 // page - Handle to the page. Returned by FPDF_LoadPage function.
77 // pause - The IFSDK_PAUSE interface.A call back mechanism allowing the page rendering process
78 // to be paused before it's finished. This can be NULL if you don't want to pause.
79 // Return value:
80 // The rendering status. See flags for progressive process status for the details.
81 // Notes:
82 // The method cannot not support to render page which the d ocument consists of dynamic XFA fields.
83 //
84 DLLEXPORT int STDCALL FPDF_RenderPage_Continue(FPDF_PAGE page,IFSDK_PAUSE * paus e);
85
86 // Function: FPDF_RenderPage_Close
87 // Release the resource allocate during page rendering. Nee d to be called after finishing rendering or
88 // cancel the rendering.
89 // Parameters:
90 // page - Handle to the page. Returned by FPDF_LoadPage function.
91 // Return value:
92 // NULL
93 // Notes:
94 // The method cannot not support to render page which the d ocument consists of dynamic XFA fields.
95 //
96 DLLEXPORT void STDCALL FPDF_RenderPage_Close(FPDF_PAGE page);
97
98 #ifdef __cplusplus
99 }
100 #endif
101
102 #endif //_FPDF_PROGRESSIVE_H_
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