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/*
* Copyright (C) 2009, Pino Toscano <pino@kde.org>
*
* 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.
*/
#include "poppler-font.h"
#include "poppler-document-private.h"
#include "FontInfo.h"
using namespace poppler;
class poppler::font_info_private
{
public:
font_info_private()
: type(font_info::unknown)
, is_embedded(false)
, is_subset(false)
{
}
font_info_private(FontInfo *fi)
: type((font_info::type_enum)fi->getType())
, is_embedded(fi->getEmbedded())
, is_subset(fi->getSubset())
, emb_ref(fi->getEmbRef())
{
if (fi->getName()) {
font_name = fi->getName()->getCString();
}
if (fi->getFile()) {
font_file = fi->getFile()->getCString();
}
}
std::string font_name;
std::string font_file;
font_info::type_enum type : 5;
bool is_embedded : 1;
bool is_subset : 1;
Ref emb_ref;
};
class poppler::font_iterator_private
{
public:
font_iterator_private(int start_page, document_private *dd)
: font_info_scanner(dd->doc, start_page)
, total_pages(dd->doc->getNumPages())
, current_page((std::max)(start_page, 0))
{
}
~font_iterator_private()
{
}
FontInfoScanner font_info_scanner;
int total_pages;
int current_page;
};
/**
\class poppler::font_info poppler-font.h "poppler/cpp/poppler-font.h"
The information about a font used in a PDF %document.
*/
/**
\enum poppler::font_info::type_enum
The various types of fonts available in a PDF %document.
*/
/**
Constructs an invalid font information.
*/
font_info::font_info()
: d(new font_info_private())
{
}
font_info::font_info(font_info_private &dd)
: d(&dd)
{
}
/**
Copy constructor.
*/
font_info::font_info(const font_info &fi)
: d(new font_info_private(*fi.d))
{
}
/**
Destructor.
*/
font_info::~font_info()
{
delete d;
}
/**
\returns the name of the font
*/
std::string font_info::name() const
{
return d->font_name;
}
/**
\returns the file name of the font, in case the font is not embedded nor subset
*/
std::string font_info::file() const
{
return d->font_file;
}
/**
\returns whether the font is totally embedded in the %document
*/
bool font_info::is_embedded() const
{
return d->is_embedded;
}
/**
\returns whether there is a subset of the font embedded in the %document
*/
bool font_info::is_subset() const
{
return d->is_subset;
}
/**
\returns the type of the font
*/
font_info::type_enum font_info::type() const
{
return d->type;
}
/**
Assignment operator.
*/
font_info& font_info::operator=(const font_info &fi)
{
if (this != &fi) {
*d = *fi.d;
}
return *this;
}
/**
\class poppler::font_iterator poppler-font.h "poppler/cpp/poppler-font.h"
Reads the fonts in the PDF %document page by page.
font_iterator is the way to collect the list of the fonts used in a PDF
%document, reading them incrementally page by page.
A typical usage of this might look like:
\code
poppler::font_iterator *it = doc->create_font_iterator();
while (it->has_next()) {
std::vector<poppler::font_info> fonts = it->next();
// do domething with the fonts
}
// after we are done with the iterator, it must be deleted
delete it;
\endcode
*/
font_iterator::font_iterator(int start_page, document_private *dd)
: d(new font_iterator_private(start_page, dd))
{
}
/**
Destructor.
*/
font_iterator::~font_iterator()
{
delete d;
}
/**
Returns the fonts of the current page and advances to the next one.
*/
std::vector<font_info> font_iterator::next()
{
if (!has_next()) {
return std::vector<font_info>();
}
++d->current_page;
GooList *items = d->font_info_scanner.scan(1);
if (!items) {
return std::vector<font_info>();
}
std::vector<font_info> fonts(items->getLength());
for (int i = 0; i < items->getLength(); ++i) {
fonts[i] = font_info(*new font_info_private((FontInfo *)items->get(i)));
}
deleteGooList(items, FontInfo);
return fonts;
}
/**
\returns whether the iterator has more pages to advance to
*/
bool font_iterator::has_next() const
{
return d->current_page < d->total_pages;
}
/**
\returns the current page
*/
int font_iterator::current_page() const
{
return d->current_page;
}
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