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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
// Copyright 2014 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_INCLUDE_FPDFAPI_FPDF_PAGE_H_
#define CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_
#include "../fxge/fx_dib.h"
#include "fpdf_parser.h"
#include "fpdf_resource.h"
class CPDF_PageObjects;
class CPDF_Page;
class CPDF_Form;
class CPDF_ParseOptions;
class CPDF_PageObject;
class CPDF_PageRenderCache;
class CPDF_StreamFilter;
class CPDF_AllStates;
class CPDF_ContentParser;
class CPDF_StreamContentParser;
#define PDFTRANS_GROUP 0x0100
#define PDFTRANS_ISOLATED 0x0200
#define PDFTRANS_KNOCKOUT 0x0400
class CPDF_PageObjects {
public:
CPDF_PageObjects(FX_BOOL bReleaseMembers = TRUE);
~CPDF_PageObjects();
void ContinueParse(IFX_Pause* pPause);
FX_BOOL IsParsed() const { return m_ParseState == CONTENT_PARSED; }
FX_POSITION GetFirstObjectPosition() const {
return m_ObjectList.GetHeadPosition();
}
FX_POSITION GetLastObjectPosition() const {
return m_ObjectList.GetTailPosition();
}
CPDF_PageObject* GetNextObject(FX_POSITION& pos) const {
return (CPDF_PageObject*)m_ObjectList.GetNext(pos);
}
CPDF_PageObject* GetPrevObject(FX_POSITION& pos) const {
return (CPDF_PageObject*)m_ObjectList.GetPrev(pos);
}
CPDF_PageObject* GetObjectAt(FX_POSITION pos) const {
return (CPDF_PageObject*)m_ObjectList.GetAt(pos);
}
FX_DWORD CountObjects() const { return m_ObjectList.GetCount(); }
int GetObjectIndex(CPDF_PageObject* pObj) const;
CPDF_PageObject* GetObjectByIndex(int index) const;
FX_POSITION InsertObject(FX_POSITION posInsertAfter,
CPDF_PageObject* pNewObject);
void Transform(const CFX_AffineMatrix& matrix);
FX_BOOL BackgroundAlphaNeeded() const { return m_bBackgroundAlphaNeeded; }
CFX_FloatRect CalcBoundingBox() const;
CPDF_Dictionary* m_pFormDict;
CPDF_Stream* m_pFormStream;
CPDF_Document* m_pDocument;
CPDF_Dictionary* m_pPageResources;
CPDF_Dictionary* m_pResources;
CFX_FloatRect m_BBox;
int m_Transparency;
protected:
friend class CPDF_ContentParser;
friend class CPDF_StreamContentParser;
friend class CPDF_AllStates;
enum ParseState { CONTENT_NOT_PARSED, CONTENT_PARSING, CONTENT_PARSED };
void LoadTransInfo();
void ClearCacheObjects();
CFX_PtrList m_ObjectList;
FX_BOOL m_bBackgroundAlphaNeeded;
FX_BOOL m_bReleaseMembers;
CPDF_ContentParser* m_pParser;
ParseState m_ParseState;
};
class CPDF_Page : public CPDF_PageObjects, public CFX_PrivateData {
public:
CPDF_Page();
~CPDF_Page();
void Load(CPDF_Document* pDocument,
CPDF_Dictionary* pPageDict,
FX_BOOL bPageCache = TRUE);
void StartParse(CPDF_ParseOptions* pOptions = NULL, FX_BOOL bReParse = FALSE);
void ParseContent(CPDF_ParseOptions* pOptions = NULL,
FX_BOOL bReParse = FALSE);
void GetDisplayMatrix(CFX_AffineMatrix& matrix,
int xPos,
int yPos,
int xSize,
int ySize,
int iRotate) const;
FX_FLOAT GetPageWidth() const { return m_PageWidth; }
FX_FLOAT GetPageHeight() const { return m_PageHeight; }
CFX_FloatRect GetPageBBox() const { return m_BBox; }
const CFX_AffineMatrix& GetPageMatrix() const { return m_PageMatrix; }
CPDF_Object* GetPageAttr(const CFX_ByteStringC& name) const;
CPDF_PageRenderCache* GetRenderCache() const { return m_pPageRender; }
void ClearRenderCache();
protected:
friend class CPDF_ContentParser;
FX_FLOAT m_PageWidth;
FX_FLOAT m_PageHeight;
CFX_AffineMatrix m_PageMatrix;
CPDF_PageRenderCache* m_pPageRender;
};
class CPDF_ParseOptions {
public:
CPDF_ParseOptions();
FX_BOOL m_bTextOnly;
FX_BOOL m_bMarkedContent;
FX_BOOL m_bSeparateForm;
FX_BOOL m_bDecodeInlineImage;
};
class CPDF_Form : public CPDF_PageObjects {
public:
CPDF_Form(CPDF_Document* pDocument,
CPDF_Dictionary* pPageResources,
CPDF_Stream* pFormStream,
CPDF_Dictionary* pParentResources = NULL);
~CPDF_Form();
void StartParse(CPDF_AllStates* pGraphicStates,
CFX_AffineMatrix* pParentMatrix,
CPDF_Type3Char* pType3Char,
CPDF_ParseOptions* pOptions,
int level = 0);
void ParseContent(CPDF_AllStates* pGraphicStates,
CFX_AffineMatrix* pParentMatrix,
CPDF_Type3Char* pType3Char,
CPDF_ParseOptions* pOptions,
int level = 0);
CPDF_Form* Clone() const;
};
class CPDF_PageContentGenerate {
public:
CPDF_PageContentGenerate(CPDF_Page* pPage);
~CPDF_PageContentGenerate();
FX_BOOL InsertPageObject(CPDF_PageObject* pPageObject);
void GenerateContent();
void TransformContent(CFX_Matrix& matrix);
protected:
void ProcessImage(CFX_ByteTextBuf& buf, CPDF_ImageObject* pImageObj);
void ProcessForm(CFX_ByteTextBuf& buf,
const uint8_t* data,
FX_DWORD size,
CFX_Matrix& matrix);
CFX_ByteString RealizeResource(CPDF_Object* pResourceObj,
const FX_CHAR* szType);
private:
CPDF_Page* m_pPage;
CPDF_Document* m_pDocument;
CFX_PtrArray m_pageObjects;
};
#endif // CORE_INCLUDE_FPDFAPI_FPDF_PAGE_H_
|
