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 CORE_INCLUDE_REFLOW_REFLOWENGINE_H_
8#define CORE_INCLUDE_REFLOW_REFLOWENGINE_H_
9
10#include "../fpdfapi/fpdf_pageobj.h"
11#include "../fpdfapi/fpdf_render.h"
12#include "../fpdfdoc/fpdf_tagged.h"
13#include "../fpdftext/fpdf_text.h"
14#include "fpdf_layout.h"
15
16class IPDF_ReflowedPage
17{
18public:
19    static IPDF_ReflowedPage* Create();
20
21    virtual ~IPDF_ReflowedPage() {}
22    virtual CFX_PrivateData*	GetPrivateDataCtrl() = 0;
23
24
25    virtual void		GetDisplayMatrix(CFX_AffineMatrix& matrix, FX_INT32 xPos, FX_INT32 yPos, FX_INT32 xSize, FX_INT32 ySize, FX_INT32 iRotate, const CFX_AffineMatrix* pPageMatrix) = 0;
26    virtual FX_FLOAT	GetPageHeight() = 0;
27    virtual FX_FLOAT	GetPageWidth() = 0;
28    virtual void		FocusGetData(const CFX_AffineMatrix matrix, FX_INT32 x, FX_INT32 y, CFX_ByteString& str) = 0;
29    virtual FX_BOOL		FocusGetPosition(const CFX_AffineMatrix matrix, CFX_ByteString str, FX_INT32& x, FX_INT32& y) = 0;
30};
31typedef struct _RF_ParseStyle {
32    _RF_ParseStyle()
33    {
34        m_LineSpace = 0;
35    };
36    FX_FLOAT m_LineSpace;
37} RF_ParseStyle;
38class IPDF_ProgressiveReflowPageParser
39{
40public:
41    static IPDF_ProgressiveReflowPageParser* Create();
42    static FX_BOOL	IsTaggedPage(CPDF_PageObjects*pPage);
43
44    virtual ~IPDF_ProgressiveReflowPageParser() {}
45    typedef enum { Ready, ToBeContinued, Done, Failed } ParseStatus;
46
47    virtual ParseStatus		GetStatus() = 0;
48    virtual void			SetParserStyle(RF_ParseStyle style) = 0;
49    virtual void			Start(IPDF_ReflowedPage* pReflowPage, CPDF_Page* pPage, FX_FLOAT TopIndent, FX_FLOAT fWidth, FX_FLOAT fHeight, IFX_Pause* pPause, int flags) = 0;
50    virtual void			Continue(IFX_Pause* pPause) = 0;
51
52    virtual int				GetPosition() = 0;
53
54
55    virtual void			Clear() = 0;
56};
57class IPDF_ProgressiveReflowPageRender
58{
59public:
60    static IPDF_ProgressiveReflowPageRender* Create();
61
62    virtual ~IPDF_ProgressiveReflowPageRender() {}
63    typedef enum { Ready, ToBeContinued, Waiting, Done, Failed } RenderStatus;
64
65    virtual RenderStatus	GetStatus() = 0;
66
67
68    virtual void		Start(IPDF_ReflowedPage* pReflowPage, CFX_RenderDevice* pDevice, const CFX_AffineMatrix* pMatrix, IFX_Pause* pPause, int DitherBits ) = 0;
69    virtual void		Continue(IFX_Pause* pPause) = 0;
70    virtual int			GetPosition() = 0;
71
72
73    virtual void				Clear() = 0;
74};
75IPDF_ReflowedPage* Create_ReflowPage();
76IPDF_ProgressiveReflowPageParser* Create_ReflowPageParser();
77IPDF_ProgressiveReflowPageRender* Create_ReflowPageRender();
78
79#endif  // CORE_INCLUDE_REFLOW_REFLOWENGINE_H_
80