blob: bf6c47618623a41a148b19cbb344ade7067dd97a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
// Copyright 2016 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 CORE_FPDFAPI_PAGE_CPDF_PAGEOBJECTHOLDER_H_
#define CORE_FPDFAPI_PAGE_CPDF_PAGEOBJECTHOLDER_H_
#include <map>
#include <memory>
#include <vector>
#include "core/fpdfapi/page/cpdf_pageobjectlist.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/unowned_ptr.h"
class PauseIndicatorIface;
class CPDF_Dictionary;
class CPDF_Stream;
class CPDF_Document;
class CPDF_ContentParser;
#define PDFTRANS_GROUP 0x0100
#define PDFTRANS_ISOLATED 0x0200
#define PDFTRANS_KNOCKOUT 0x0400
// These structs are used to keep track of resources that have already been
// generated in the page object holder.
struct GraphicsData {
float fillAlpha;
float strokeAlpha;
int blendType;
bool operator<(const GraphicsData& other) const;
};
struct FontData {
ByteString baseFont;
ByteString type;
bool operator<(const FontData& other) const;
};
class CPDF_PageObjectHolder {
public:
CPDF_PageObjectHolder(CPDF_Document* pDoc, CPDF_Dictionary* pFormDict);
virtual ~CPDF_PageObjectHolder();
virtual bool IsPage() const;
void ContinueParse(PauseIndicatorIface* pPause);
bool IsParsed() const { return m_ParseState == CONTENT_PARSED; }
CPDF_PageObjectList* GetPageObjectList() { return &m_PageObjectList; }
const CPDF_PageObjectList* GetPageObjectList() const {
return &m_PageObjectList;
}
size_t GetPageObjectCount() const;
CPDF_PageObject* GetPageObjectByIndex(size_t index) const;
void AppendPageObject(std::unique_ptr<CPDF_PageObject> pPageObj);
bool RemovePageObject(CPDF_PageObject* pPageObj);
const CFX_Matrix& GetLastCTM() const { return m_LastCTM; }
bool BackgroundAlphaNeeded() const { return m_bBackgroundAlphaNeeded; }
void SetBackgroundAlphaNeeded(bool needed) {
m_bBackgroundAlphaNeeded = needed;
}
bool HasImageMask() const { return !m_MaskBoundingBoxes.empty(); }
const std::vector<CFX_FloatRect>& GetMaskBoundingBoxes() const {
return m_MaskBoundingBoxes;
}
void AddImageMaskBoundingBox(const CFX_FloatRect& box);
void Transform(const CFX_Matrix& matrix);
CFX_FloatRect CalcBoundingBox() const;
const UnownedPtr<CPDF_Dictionary> m_pFormDict;
UnownedPtr<CPDF_Stream> m_pFormStream;
UnownedPtr<CPDF_Document> m_pDocument;
UnownedPtr<CPDF_Dictionary> m_pPageResources;
UnownedPtr<CPDF_Dictionary> m_pResources;
std::map<GraphicsData, ByteString> m_GraphicsMap;
std::map<FontData, ByteString> m_FontsMap;
CFX_FloatRect m_BBox;
int m_iTransparency;
protected:
enum ParseState { CONTENT_NOT_PARSED, CONTENT_PARSING, CONTENT_PARSED };
void LoadTransInfo();
bool m_bBackgroundAlphaNeeded;
std::vector<CFX_FloatRect> m_MaskBoundingBoxes;
ParseState m_ParseState;
std::unique_ptr<CPDF_ContentParser> m_pParser;
CPDF_PageObjectList m_PageObjectList;
CFX_Matrix m_LastCTM;
};
#endif // CORE_FPDFAPI_PAGE_CPDF_PAGEOBJECTHOLDER_H_
|
