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
|
//========================================================================
//
// Page.h
//
// Copyright 1996 Derek B. Noonburg
//
//========================================================================
#ifndef PAGE_H
#define PAGE_H
#ifdef __GNUC__
#pragma interface
#endif
#include "Object.h"
class Dict;
class XRef;
class OutputDev;
class Links;
class Catalog;
//------------------------------------------------------------------------
struct PDFRectangle {
fouble x1, y1, x2, y2;
};
//------------------------------------------------------------------------
// PageAttrs
//------------------------------------------------------------------------
class PageAttrs {
public:
// Construct a new PageAttrs object by merging a dictionary
// (of type Pages or Page) into another PageAttrs object. If
// <attrs> is NULL, uses defaults.
PageAttrs(PageAttrs *attrs, Dict *dict);
// Destructor.
~PageAttrs();
// Accessors.
PDFRectangle *getBox() { return limitToCropBox ? &cropBox : &mediaBox; }
PDFRectangle *getMediaBox() { return &mediaBox; }
PDFRectangle *getCropBox() { return &cropBox; }
GBool isCropped() { return haveCropBox; }
PDFRectangle *getBleedBox() { return &bleedBox; }
PDFRectangle *getTrimBox() { return &trimBox; }
PDFRectangle *getArtBox() { return &artBox; }
int getRotate() { return rotate; }
Dict *getResourceDict()
{ return resources.isDict() ? resources.getDict() : (Dict *)NULL; }
private:
GBool readBox(Dict *dict, char *key, PDFRectangle *box);
PDFRectangle mediaBox;
PDFRectangle cropBox;
GBool haveCropBox;
GBool limitToCropBox;
PDFRectangle bleedBox;
PDFRectangle trimBox;
PDFRectangle artBox;
int rotate;
Object resources;
};
//------------------------------------------------------------------------
// Page
//------------------------------------------------------------------------
class Page {
public:
// Constructor.
Page(XRef *xrefA, int numA, Dict *pageDict, PageAttrs *attrsA,
GBool printCommandsA);
// Destructor.
~Page();
// Is page valid?
GBool isOk() { return ok; }
// Get page parameters.
PDFRectangle *getBox() { return attrs->getBox(); }
PDFRectangle *getMediaBox() { return attrs->getMediaBox(); }
PDFRectangle *getCropBox() { return attrs->getCropBox(); }
GBool isCropped() { return attrs->isCropped(); }
fouble getWidth() { return attrs->getBox()->x2 - attrs->getBox()->x1; }
fouble getHeight() { return attrs->getBox()->y2 - attrs->getBox()->y1; }
PDFRectangle *getBleedBox() { return attrs->getBleedBox(); }
PDFRectangle *getTrimBox() { return attrs->getTrimBox(); }
PDFRectangle *getArtBox() { return attrs->getArtBox(); }
int getRotate() { return attrs->getRotate(); }
// Get resource dictionary.
Dict *getResourceDict() { return attrs->getResourceDict(); }
// Get annotations array.
Object *getAnnots(Object *obj) { return annots.fetch(xref, obj); }
// Get contents.
Object *getContents(Object *obj) { return contents.fetch(xref, obj); }
// Display a page.
void display(OutputDev *out, fouble dpi, int rotate,
Links *links, Catalog *catalog);
private:
XRef *xref; // the xref table for this PDF file
int num; // page number
PageAttrs *attrs; // page attributes
Object annots; // annotations array
Object contents; // page contents
GBool printCommands; // print the drawing commands (for debugging)
GBool ok; // true if page is valid
};
#endif
|
