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
203
|
/*
* Copyright (C) 2009-2010, Pino Toscano <pino@kde.org>
* Copyright (C) 2018, Albert Astals Cid <aacid@kde.org>
* Copyright (C) 2019, Oliver Sander <oliver.sander@tu-dresden.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
/**
\file poppler-toc.h
*/
#include "poppler-toc.h"
#include "poppler-toc-private.h"
#include "poppler-private.h"
#include "Outline.h"
using namespace poppler;
toc_private::toc_private()
{
}
toc_private::~toc_private()
{
}
toc* toc_private::load_from_outline(Outline *outline)
{
if (!outline) {
return nullptr;
}
const std::vector<OutlineItem*> *items = outline->getItems();
if (!items || items->size() < 1) {
return nullptr;
}
toc *newtoc = new toc();
newtoc->d->root.d->is_open = true;
newtoc->d->root.d->load_children(items);
return newtoc;
}
toc_item_private::toc_item_private()
: is_open(false)
{
}
toc_item_private::~toc_item_private()
{
delete_all(children);
}
void toc_item_private::load(const OutlineItem *item)
{
const Unicode *title_unicode = item->getTitle();
const int title_length = item->getTitleLength();
title = detail::unicode_to_ustring(title_unicode, title_length);
is_open = item->isOpen();
}
void toc_item_private::load_children(const std::vector<OutlineItem*> *items)
{
const int num_items = items->size();
children.resize(num_items);
for (int i = 0; i < num_items; ++i) {
OutlineItem *item = (*items)[i];
toc_item *new_item = new toc_item();
new_item->d->load(item);
children[i] = new_item;
item->open();
const std::vector<OutlineItem*> *item_children = item->getKids();
if (item_children) {
new_item->d->load_children(item_children);
}
}
}
/**
\class poppler::toc poppler-toc.h "poppler/cpp/poppler-toc.h"
Represents the TOC (Table of Contents) of a PDF %document.
The TOC of a PDF %document is represented as a tree of items.
*/
toc::toc()
: d(new toc_private())
{
}
/**
Destroys the TOC.
*/
toc::~toc()
{
delete d;
}
/**
Returns the "invisible item" representing the root of the TOC.
This item is special, it has no title nor actions, it is open and its children
are the effective root items of the TOC. This is provided as a convenience
when iterating through the TOC.
\returns the root "item"
*/
toc_item* toc::root() const
{
return &d->root;
}
/**
\class poppler::toc_item poppler-toc.h "poppler/cpp/poppler-toc.h"
Represents an item of the TOC (Table of Contents) of a PDF %document.
*/
/**
\typedef std::vector<toc_item *>::const_iterator poppler::toc_item::iterator
An iterator for the children of a TOC item.
*/
toc_item::toc_item()
: d(new toc_item_private())
{
}
/**
Destroys the TOC item.
*/
toc_item::~toc_item()
{
delete d;
}
/**
\returns the title of the TOC item
*/
ustring toc_item::title() const
{
return d->title;
}
/**
Returns whether the TOC item should be represented as open when showing the
TOC.
This is not a functional behaviour, but a visualisation hint of the item.
Regardless of this state, the item can be expanded and collapsed freely when
represented in a TOC view of a PDF viewer.
\returns whether the TOC item should be open
*/
bool toc_item::is_open() const
{
return d->is_open;
}
/**
\returns the children of the TOC item
*/
std::vector<toc_item *> toc_item::children() const
{
return d->children;
}
/**
\returns an iterator to the being of the list of children of the TOC item
*/
toc_item::iterator toc_item::children_begin() const
{
return d->children.begin();
}
/**
\returns an iterator to the end of the list of children of the TOC item
*/
toc_item::iterator toc_item::children_end() const
{
return d->children.end();
}
|
