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/***************************************************************************
* Copyright (C) 2004-2007 by Georgy Yunaev, gyunaev@ulduzsoft.com *
* Please do not use email address above for bug reports; see *
* the README file *
* *
* 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 of the License, 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. *
***************************************************************************/
#ifndef INCLUDE_LIBCHMFILE_H
#define INCLUDE_LIBCHMFILE_H
#include <qstring.h>
#include <qcstring.h>
#include <qlistview.h>
#include <qlistbox.h>
#include <qmap.h>
#include <qvaluevector.h>
#include <qtextcodec.h>
#include "libchmtextencoding.h"
// Qt3/Qt4 compatibility: in Qt3 QVector stores pointers, not values - so QValueVector should be used.
// In Qt4 QVector stores values, so we can use QVector
#if defined (USE_QT_4)
#define QT34VECTOR QVector
#else
#define QT34VECTOR QValueVector
#endif
//! Contains different (non-standard) image types
namespace LCHMBookIcons
{
const int IMAGE_NONE = -1;
const int IMAGE_AUTO = -2;
const int IMAGE_INDEX = -3;
const int MAX_BUILTIN_ICONS = 42;
};
//! Contains a single index or TOC entry. See LCHMFile::parseTOC() and LCHMFile::parseIndex()
typedef struct
{
//! Entry name
QString name;
//! Entry URLs. The TOC entry should have only one URL; the index entry could have several.
QStringList urls;
//! Associated image number. Used for TOC only; indexes does not have the image.
//! Use LCHMFile::getBookIconPixmap() to get associated pixmap icon
int imageid;
//! Indentation level for this entry.
int indent;
} LCHMParsedEntry;
// forward declaration
class LCHMFileImpl;
//! CHM files processor, heavily based on chmlib. Used search code from xchm.
class LCHMFile
{
public:
//! Default constructor and destructor.
LCHMFile();
~LCHMFile();
/*!
* \brief Attempts to load a .chm file.
* \param archiveName The .chm filename.
* \return true on success, false on failure.
*
* Loads a CHM file. Could internally load more than one file, if files linked to
* this one are present locally (like MSDN).
* \ingroup init
*/
bool loadFile( const QString& archiveName );
/*!
* \brief Closes all the files, and frees the appropriate data.
* \ingroup init
*/
void closeAll();
/*!
* \brief Gets the title name of the opened .chm.
* \return The name of the opened document, or an empty string if no .chm has been loaded.
* \ingroup information
*/
QString title() const;
/*!
* \brief Gets the URL of the default page in the chm archive.
* \return The home page name, with a '/' added in front and relative to
* the root of the archive filesystem. If no .chm has been opened,
* returns "/".
* \ingroup information
*/
QString homeUrl() const;
/*!
* \brief Checks whether the Table of Contents is present in this file.
* \return true if it is available; false otherwise.
* \ingroup information
*/
bool hasTableOfContents() const;
/*!
* \brief Checks whether the Index Table is present in this file.
* \return true if it is available; false otherwise.
* \ingroup information
*/
bool hasIndexTable() const;
/*!
* \brief Checks whether the Search Table is available in this file.
* \return true if it is available; false otherwise.
* \ingroup information
*
* If the search table is not available, the search is not possible.
*/
bool hasSearchTable() const;
/*!
* \brief Parses the Table of Contents (TOC)
* \param topics A pointer to the container which will store the parsed results.
* Will be cleaned before parsing.
* \return true if the tree is present and parsed successfully, false otherwise.
* The parser is built to be error-prone, however it still can abort with qFatal()
* by really buggy chm file; please report a bug if the file is opened ok under Windows.
* \ingroup fileparsing
*/
bool parseTableOfContents( QT34VECTOR< LCHMParsedEntry > * topics ) const;
/*!
* \brief Parses the Index Table
* \param indexes A pointer to the container which will store the parsed results.
* Will be cleaned before parsing.
* \return true if the tree is present and parsed successfully, false otherwise.
* The parser is built to be error-prone, however it still can abort with qFatal()
* by really buggy chm file; so far it never happened on indexes.
* \ingroup fileparsing
*/
bool parseIndex( QT34VECTOR< LCHMParsedEntry > * indexes ) const;
/*!
* \brief Retrieves the content from url in current chm file to QString.
* \param str A string where the retreived content should be stored.
* \param url An URL in chm file to retreive content from. Must be absolute.
* \return true if the content is successfully received; false otherwise.
*
* This function retreives the file content (mostly for HTML pages) from the chm archive
* opened by load() function. Because the content in chm file is not stored in Unicode, it
* will be recoded according to current encoding. Do not use for binary data.
*
* \sa setCurrentEncoding() currentEncoding() getFileContentAsBinary()
* \ingroup dataretrieve
*/
bool getFileContentAsString( QString * str, const QString& url );
/*!
* \brief Retrieves the content from url in current chm file to QByteArray.
* \param data A data array where the retreived content should be stored.
* \param url An URL in chm file to retreive content from. Must be absolute.
* \return true if the content is successfully received; false otherwise.
*
* This function retreives the file content from the chm archive opened by load()
* function. The content is not encoded.
*
* \sa getFileContentAsString()
* \ingroup dataretrieve
*/
bool getFileContentAsBinary( QByteArray * data, const QString& url );
/*!
* \brief Retrieves the content size.
* \param size A pointer where the size will be stored.
* \param url An URL in chm file to retreive content from. Must be absolute.
* \return true if the content size is successfully stored; false otherwise.
*
* \ingroup dataretrieve
*/
bool getFileSize( unsigned int * size, const QString& url );
/*!
* \brief Obtains the list of all the files in current chm file archive.
* \param files An array to store list of URLs (file names) present in chm archive.
* \return true if the enumeration succeed; false otherwise (I could hardly imagine a reason).
*
* \ingroup dataretrieve
*/
bool enumerateFiles( QStringList * files );
/*!
* \brief Gets the Title of the HTML page referenced by url.
* \param url An URL in chm file to get title from. Must be absolute.
* \return The title, or QString::null if the URL cannot be found or not a HTML page.
*
* \ingroup dataretrieve
*/
QString getTopicByUrl ( const QString& url );
/*!
* \brief Gets the appropriate CHM pixmap icon.
* \param imagenum The image number from TOC.
* \return The pixmap to show in TOC tree.
*
* \ingroup dataretrieve
*/
const QPixmap * getBookIconPixmap( unsigned int imagenum );
/*!
* \brief Normalizes the URL, converting relatives, adding "/" in front and removing ..
* \param url The URL to normalize.
* \return The normalized, cleaned up URL.
*
* \ingroup dataretrieve
*/
QString normalizeUrl( const QString& url ) const;
/*!
* \brief Gets the current CHM archive encoding (set or autodetected)
* \return The current encoding.
*
* \ingroup encoding
*/
const LCHMTextEncoding * currentEncoding() const;
/*!
* \brief Sets the CHM archive encoding to use
* \param encoding An encoding to use.
*
* \ingroup encoding
*/
bool setCurrentEncoding ( const LCHMTextEncoding * encoding );
/*!
* \brief Execute a search query, return the results.
* \param query A search query.
* \param results An array to store URLs where the query was found.
* \return true if search was successful (this does not mean that it returned any results);
* false otherwise.
*
* This function executes a standard search query. The query should consist of one of more
* words separated by a space with a possible prefix. A prefix may be:
* + Plus indicates that the word is required; any page without this word is excluded from the result.
* - Minus indicates that the word is required to be absent; any page with this word is excluded from
* the result.
* "." Quotes indicates a phrase. Anything between quotes is a phrase, which is set of space-separated
* words. Will be in result only if the words in phrase are in page in the same sequence, and
* follow each other.
*
* If there is no prefix, the word considered as required.
* \ingroup search
*/
bool searchQuery ( const QString& query, QStringList * results, unsigned int limit = 100 );
//! Access to implementation
LCHMFileImpl * impl() { return m_impl; }
private:
//! No copy construction allowed.
LCHMFile( const LCHMFile& );
//! No assignments allowed.
LCHMFile& operator=( const LCHMFile& );
//! Implementation
LCHMFileImpl * m_impl;
};
#endif // INCLUDE_LIBCHMFILE_H
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