wxWidgets/include/wx/html/helpdata.h

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/////////////////////////////////////////////////////////////////////////////
// Name: helpdata.h
// Purpose: wxHtmlHelpData
// Notes: Based on htmlhelp.cpp, implementing a monolithic
// HTML Help controller class, by Vaclav Slavik
// Author: Harm van der Heijden and Vaclav Slavik
// RCS-ID: $Id$
// Copyright: (c) Harm van der Heijden and Vaclav Slavik
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_HELPDATA_H_
#define _WX_HELPDATA_H_
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface "helpdata.h"
#endif
#include "wx/defs.h"
#if wxUSE_HTML
#include "wx/object.h"
#include "wx/string.h"
#include "wx/filesys.h"
#include "wx/dynarray.h"
#include "wx/font.h"
class WXDLLIMPEXP_HTML wxHtmlHelpData;
//--------------------------------------------------------------------------------
// helper classes & structs
//--------------------------------------------------------------------------------
class WXDLLIMPEXP_HTML wxHtmlBookRecord
{
public:
wxHtmlBookRecord(const wxString& bookfile, const wxString& basepath,
const wxString& title, const wxString& start)
{
m_BookFile = bookfile;
m_BasePath = basepath;
m_Title = title;
m_Start = start;
// for debugging, give the contents index obvious default values
m_ContentsStart = m_ContentsEnd = -1;
}
wxString GetBookFile() const { return m_BookFile; }
wxString GetTitle() const { return m_Title; }
wxString GetStart() const { return m_Start; }
wxString GetBasePath() const { return m_BasePath; }
/* SetContentsRange: store in the bookrecord where in the index/contents lists the
* book's records are stored. This to facilitate searching in a specific book.
* This code will have to be revised when loading/removing books becomes dynamic.
* (as opposed to appending only)
* Note that storing index range is pointless, because the index is alphab. sorted. */
void SetContentsRange(int start, int end) { m_ContentsStart = start; m_ContentsEnd = end; }
int GetContentsStart() const { return m_ContentsStart; }
int GetContentsEnd() const { return m_ContentsEnd; }
void SetTitle(const wxString& title) { m_Title = title; }
void SetBasePath(const wxString& path) { m_BasePath = path; }
void SetStart(const wxString& start) { m_Start = start; }
// returns full filename of page (which is part of the book),
// i.e. with book's basePath prepended. If page is already absolute
// path, basePath is _not_ prepended.
wxString GetFullPath(const wxString &page) const;
protected:
wxString m_BookFile;
wxString m_BasePath;
wxString m_Title;
wxString m_Start;
int m_ContentsStart;
int m_ContentsEnd;
};
WX_DECLARE_USER_EXPORTED_OBJARRAY(wxHtmlBookRecord, wxHtmlBookRecArray,
WXDLLIMPEXP_HTML);
struct WXDLLIMPEXP_HTML wxHtmlHelpDataItem
{
wxHtmlHelpDataItem() : level(0), parent(NULL), id(wxID_ANY), book(NULL) {}
int level;
wxHtmlHelpDataItem *parent;
int id;
wxString name;
wxString page;
wxHtmlBookRecord *book;
// returns full filename of m_Page, i.e. with book's basePath prepended
wxString GetFullPath() const { return book->GetFullPath(page); }
// returns item indented with spaces if it has level>1:
wxString GetIndentedName() const;
};
WX_DECLARE_USER_EXPORTED_OBJARRAY(wxHtmlHelpDataItem, wxHtmlHelpDataItems,
WXDLLIMPEXP_HTML);
#if WXWIN_COMPATIBILITY_2_4
// old interface to contents and index:
struct wxHtmlContentsItem
{
wxHtmlContentsItem();
wxHtmlContentsItem(const wxHtmlHelpDataItem& d);
wxHtmlContentsItem& operator=(const wxHtmlContentsItem& d);
~wxHtmlContentsItem();
int m_Level;
int m_ID;
wxChar *m_Name;
wxChar *m_Page;
wxHtmlBookRecord *m_Book;
// returns full filename of m_Page, i.e. with book's basePath prepended
wxString GetFullPath() const { return m_Book->GetFullPath(m_Page); }
private:
bool m_autofree;
};
#endif
//------------------------------------------------------------------------------
// wxHtmlSearchEngine
// This class takes input streams and scans them for occurence
// of keyword(s)
//------------------------------------------------------------------------------
class WXDLLIMPEXP_HTML wxHtmlSearchEngine : public wxObject
{
public:
wxHtmlSearchEngine() : wxObject() {}
~wxHtmlSearchEngine() {}
// Sets the keyword we will be searching for
virtual void LookFor(const wxString& keyword, bool case_sensitive, bool whole_words_only);
// Scans the stream for the keyword.
// Returns true if the stream contains keyword, fALSE otherwise
virtual bool Scan(const wxFSFile& file);
private:
wxString m_Keyword;
bool m_CaseSensitive;
bool m_WholeWords;
DECLARE_NO_COPY_CLASS(wxHtmlSearchEngine)
};
// State information of a search action. I'd have prefered to make this a nested
// class inside wxHtmlHelpData, but that's against coding standards :-(
// Never construct this class yourself, obtain a copy from
// wxHtmlHelpData::PrepareKeywordSearch(const wxString& key)
class WXDLLIMPEXP_HTML wxHtmlSearchStatus
{
public:
// constructor; supply wxHtmlHelpData ptr, the keyword and (optionally) the
// title of the book to search. By default, all books are searched.
wxHtmlSearchStatus(wxHtmlHelpData* base, const wxString& keyword,
bool case_sensitive, bool whole_words_only,
const wxString& book = wxEmptyString);
bool Search(); // do the next iteration
bool IsActive() { return m_Active; }
int GetCurIndex() { return m_CurIndex; }
int GetMaxIndex() { return m_MaxIndex; }
const wxString& GetName() { return m_Name; }
const wxHtmlHelpDataItem *GetCurItem() const { return m_CurItem; }
#if WXWIN_COMPATIBILITY_2_4
wxDEPRECATED( wxHtmlContentsItem* GetContentsItem() );
#endif
private:
wxHtmlHelpData* m_Data;
wxHtmlSearchEngine m_Engine;
wxString m_Keyword, m_Name;
wxString m_LastPage;
wxHtmlHelpDataItem* m_CurItem;
bool m_Active; // search is not finished
int m_CurIndex; // where we are now
int m_MaxIndex; // number of files we search
// For progress bar: 100*curindex/maxindex = % complete
DECLARE_NO_COPY_CLASS(wxHtmlSearchStatus)
};
class WXDLLIMPEXP_HTML wxHtmlHelpData : public wxObject
{
DECLARE_DYNAMIC_CLASS(wxHtmlHelpData)
friend class wxHtmlSearchStatus;
public:
wxHtmlHelpData();
~wxHtmlHelpData();
// Sets directory where temporary files are stored.
// These temp files are index & contents file in binary (much faster to read)
// form. These files are NOT deleted on program's exit.
void SetTempDir(const wxString& path);
// Adds new book. 'book' is location of .htb file (stands for "html book").
// See documentation for details on its format.
// Returns success.
bool AddBook(const wxString& book);
bool AddBookParam(const wxFSFile& bookfile,
wxFontEncoding encoding,
const wxString& title, const wxString& contfile,
const wxString& indexfile = wxEmptyString,
const wxString& deftopic = wxEmptyString,
const wxString& path = wxEmptyString);
// Some accessing stuff:
// returns URL of page on basis of (file)name
wxString FindPageByName(const wxString& page);
// returns URL of page on basis of MS id
wxString FindPageById(int id);
const wxHtmlBookRecArray& GetBookRecArray() const { return m_bookRecords; }
const wxHtmlHelpDataItems& GetContentsArray() const { return m_contents; }
const wxHtmlHelpDataItems& GetIndexArray() const { return m_index; }
#if WXWIN_COMPATIBILITY_2_4
// deprecated interface, new interface is arrays-based (see above)
wxDEPRECATED( wxHtmlContentsItem* GetContents() );
wxDEPRECATED( int GetContentsCnt() );
wxDEPRECATED( wxHtmlContentsItem* GetIndex() );
wxDEPRECATED( int GetIndexCnt() );
#endif
protected:
wxString m_tempPath;
// each book has one record in this array:
wxHtmlBookRecArray m_bookRecords;
wxHtmlHelpDataItems m_contents; // list of all available books and pages
wxHtmlHelpDataItems m_index; // list of index itesm
#if WXWIN_COMPATIBILITY_2_4
// deprecated data structures, set only if GetContents(), GetIndex()
// called
wxHtmlContentsItem* m_cacheContents;
wxHtmlContentsItem* m_cacheIndex;
private:
void CleanCompatibilityData();
#endif
protected:
// Imports .hhp files (MS HTML Help Workshop)
bool LoadMSProject(wxHtmlBookRecord *book, wxFileSystem& fsys,
const wxString& indexfile, const wxString& contentsfile);
// Reads binary book
bool LoadCachedBook(wxHtmlBookRecord *book, wxInputStream *f);
// Writes binary book
bool SaveCachedBook(wxHtmlBookRecord *book, wxOutputStream *f);
DECLARE_NO_COPY_CLASS(wxHtmlHelpData)
};
#endif
#endif