1// Copyright 2016 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_FPDFAPI_PAGE_CPDF_PAGEOBJECTHOLDER_H_
8#define CORE_FPDFAPI_PAGE_CPDF_PAGEOBJECTHOLDER_H_
9
10#include <memory>
11
12#include "core/fpdfapi/page/cpdf_pageobjectlist.h"
13#include "core/fxcrt/fx_coordinates.h"
14#include "core/fxcrt/fx_system.h"
15
16class IFX_Pause;
17class CPDF_Dictionary;
18class CPDF_Stream;
19class CPDF_Document;
20class CPDF_ContentParser;
21
22#define PDFTRANS_GROUP 0x0100
23#define PDFTRANS_ISOLATED 0x0200
24#define PDFTRANS_KNOCKOUT 0x0400
25
26class CPDF_PageObjectHolder {
27 public:
28  CPDF_PageObjectHolder();
29  virtual ~CPDF_PageObjectHolder();
30
31  void ContinueParse(IFX_Pause* pPause);
32  bool IsParsed() const { return m_ParseState == CONTENT_PARSED; }
33
34  CPDF_PageObjectList* GetPageObjectList() { return &m_PageObjectList; }
35  const CPDF_PageObjectList* GetPageObjectList() const {
36    return &m_PageObjectList;
37  }
38
39  bool BackgroundAlphaNeeded() const { return m_bBackgroundAlphaNeeded; }
40  void SetBackgroundAlphaNeeded(bool needed) {
41    m_bBackgroundAlphaNeeded = needed;
42  }
43
44  bool HasImageMask() const { return m_bHasImageMask; }
45  void SetHasImageMask(bool value) { m_bHasImageMask = value; }
46
47  void Transform(const CFX_Matrix& matrix);
48  CFX_FloatRect CalcBoundingBox() const;
49
50  CPDF_Dictionary* m_pFormDict;
51  CPDF_Stream* m_pFormStream;
52  CPDF_Document* m_pDocument;
53  CPDF_Dictionary* m_pPageResources;
54  CPDF_Dictionary* m_pResources;
55  CFX_FloatRect m_BBox;
56  int m_Transparency;
57
58 protected:
59  enum ParseState { CONTENT_NOT_PARSED, CONTENT_PARSING, CONTENT_PARSED };
60
61  void LoadTransInfo();
62
63  bool m_bBackgroundAlphaNeeded;
64  bool m_bHasImageMask;
65  ParseState m_ParseState;
66  std::unique_ptr<CPDF_ContentParser> m_pParser;
67  CPDF_PageObjectList m_PageObjectList;
68};
69
70#endif  // CORE_FPDFAPI_PAGE_CPDF_PAGEOBJECTHOLDER_H_
71