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