267 lines
9.2 KiB
C++
267 lines
9.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: helpdata.h
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// Purpose: wxHtmlHelpData
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// Notes: Based on htmlhelp.cpp, implementing a monolithic
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// HTML Help controller class, by Vaclav Slavik
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// Author: Harm van der Heijden and Vaclav Slavik
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// RCS-ID: $Id: helpdata.h 53135 2008-04-12 02:31:04Z VZ $
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// Copyright: (c) Harm van der Heijden and Vaclav Slavik
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_HELPDATA_H_
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#define _WX_HELPDATA_H_
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#include "wx/defs.h"
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#if wxUSE_HTML
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#include "wx/object.h"
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#include "wx/string.h"
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#include "wx/filesys.h"
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#include "wx/dynarray.h"
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#include "wx/font.h"
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class WXDLLIMPEXP_FWD_HTML wxHtmlHelpData;
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//--------------------------------------------------------------------------------
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// helper classes & structs
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//--------------------------------------------------------------------------------
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class WXDLLIMPEXP_HTML wxHtmlBookRecord
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{
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public:
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wxHtmlBookRecord(const wxString& bookfile, const wxString& basepath,
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const wxString& title, const wxString& start)
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{
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m_BookFile = bookfile;
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m_BasePath = basepath;
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m_Title = title;
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m_Start = start;
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// for debugging, give the contents index obvious default values
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m_ContentsStart = m_ContentsEnd = -1;
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}
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wxString GetBookFile() const { return m_BookFile; }
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wxString GetTitle() const { return m_Title; }
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wxString GetStart() const { return m_Start; }
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wxString GetBasePath() const { return m_BasePath; }
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/* SetContentsRange: store in the bookrecord where in the index/contents lists the
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* book's records are stored. This to facilitate searching in a specific book.
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* This code will have to be revised when loading/removing books becomes dynamic.
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* (as opposed to appending only)
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* Note that storing index range is pointless, because the index is alphab. sorted. */
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void SetContentsRange(int start, int end) { m_ContentsStart = start; m_ContentsEnd = end; }
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int GetContentsStart() const { return m_ContentsStart; }
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int GetContentsEnd() const { return m_ContentsEnd; }
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void SetTitle(const wxString& title) { m_Title = title; }
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void SetBasePath(const wxString& path) { m_BasePath = path; }
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void SetStart(const wxString& start) { m_Start = start; }
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// returns full filename of page (which is part of the book),
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// i.e. with book's basePath prepended. If page is already absolute
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// path, basePath is _not_ prepended.
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wxString GetFullPath(const wxString &page) const;
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protected:
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wxString m_BookFile;
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wxString m_BasePath;
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wxString m_Title;
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wxString m_Start;
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int m_ContentsStart;
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int m_ContentsEnd;
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};
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WX_DECLARE_USER_EXPORTED_OBJARRAY(wxHtmlBookRecord, wxHtmlBookRecArray,
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WXDLLIMPEXP_HTML);
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struct WXDLLIMPEXP_HTML wxHtmlHelpDataItem
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{
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wxHtmlHelpDataItem() : level(0), parent(NULL), id(wxID_ANY), book(NULL) {}
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int level;
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wxHtmlHelpDataItem *parent;
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int id;
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wxString name;
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wxString page;
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wxHtmlBookRecord *book;
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// returns full filename of m_Page, i.e. with book's basePath prepended
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wxString GetFullPath() const { return book->GetFullPath(page); }
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// returns item indented with spaces if it has level>1:
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wxString GetIndentedName() const;
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};
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WX_DECLARE_USER_EXPORTED_OBJARRAY(wxHtmlHelpDataItem, wxHtmlHelpDataItems,
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WXDLLIMPEXP_HTML);
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#if WXWIN_COMPATIBILITY_2_4
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// old interface to contents and index:
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struct wxHtmlContentsItem
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{
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wxHtmlContentsItem();
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wxHtmlContentsItem(const wxHtmlHelpDataItem& d);
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wxHtmlContentsItem& operator=(const wxHtmlContentsItem& d);
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~wxHtmlContentsItem();
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int m_Level;
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int m_ID;
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wxChar *m_Name;
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wxChar *m_Page;
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wxHtmlBookRecord *m_Book;
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// returns full filename of m_Page, i.e. with book's basePath prepended
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wxString GetFullPath() const { return m_Book->GetFullPath(m_Page); }
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private:
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bool m_autofree;
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};
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#endif
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//------------------------------------------------------------------------------
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// wxHtmlSearchEngine
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// This class takes input streams and scans them for occurence
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// of keyword(s)
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//------------------------------------------------------------------------------
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class WXDLLIMPEXP_HTML wxHtmlSearchEngine : public wxObject
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{
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public:
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wxHtmlSearchEngine() : wxObject() {}
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virtual ~wxHtmlSearchEngine() {}
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// Sets the keyword we will be searching for
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virtual void LookFor(const wxString& keyword, bool case_sensitive, bool whole_words_only);
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// Scans the stream for the keyword.
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// Returns true if the stream contains keyword, fALSE otherwise
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virtual bool Scan(const wxFSFile& file);
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private:
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wxString m_Keyword;
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bool m_CaseSensitive;
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bool m_WholeWords;
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DECLARE_NO_COPY_CLASS(wxHtmlSearchEngine)
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};
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// State information of a search action. I'd have preferred to make this a
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// nested class inside wxHtmlHelpData, but that's against coding standards :-(
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// Never construct this class yourself, obtain a copy from
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// wxHtmlHelpData::PrepareKeywordSearch(const wxString& key)
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class WXDLLIMPEXP_HTML wxHtmlSearchStatus
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{
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public:
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// constructor; supply wxHtmlHelpData ptr, the keyword and (optionally) the
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// title of the book to search. By default, all books are searched.
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wxHtmlSearchStatus(wxHtmlHelpData* base, const wxString& keyword,
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bool case_sensitive, bool whole_words_only,
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const wxString& book = wxEmptyString);
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bool Search(); // do the next iteration
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bool IsActive() { return m_Active; }
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int GetCurIndex() { return m_CurIndex; }
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int GetMaxIndex() { return m_MaxIndex; }
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const wxString& GetName() { return m_Name; }
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const wxHtmlHelpDataItem *GetCurItem() const { return m_CurItem; }
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#if WXWIN_COMPATIBILITY_2_4
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wxDEPRECATED( wxHtmlContentsItem* GetContentsItem() );
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#endif
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private:
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wxHtmlHelpData* m_Data;
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wxHtmlSearchEngine m_Engine;
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wxString m_Keyword, m_Name;
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wxString m_LastPage;
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wxHtmlHelpDataItem* m_CurItem;
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bool m_Active; // search is not finished
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int m_CurIndex; // where we are now
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int m_MaxIndex; // number of files we search
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// For progress bar: 100*curindex/maxindex = % complete
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DECLARE_NO_COPY_CLASS(wxHtmlSearchStatus)
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};
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class WXDLLIMPEXP_HTML wxHtmlHelpData : public wxObject
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{
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DECLARE_DYNAMIC_CLASS(wxHtmlHelpData)
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friend class wxHtmlSearchStatus;
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public:
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wxHtmlHelpData();
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virtual ~wxHtmlHelpData();
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// Sets directory where temporary files are stored.
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// These temp files are index & contents file in binary (much faster to read)
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// form. These files are NOT deleted on program's exit.
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void SetTempDir(const wxString& path);
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// Adds new book. 'book' is location of .htb file (stands for "html book").
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// See documentation for details on its format.
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// Returns success.
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bool AddBook(const wxString& book);
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bool AddBookParam(const wxFSFile& bookfile,
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wxFontEncoding encoding,
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const wxString& title, const wxString& contfile,
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const wxString& indexfile = wxEmptyString,
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const wxString& deftopic = wxEmptyString,
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const wxString& path = wxEmptyString);
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// Some accessing stuff:
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// returns URL of page on basis of (file)name
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wxString FindPageByName(const wxString& page);
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// returns URL of page on basis of MS id
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wxString FindPageById(int id);
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const wxHtmlBookRecArray& GetBookRecArray() const { return m_bookRecords; }
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const wxHtmlHelpDataItems& GetContentsArray() const { return m_contents; }
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const wxHtmlHelpDataItems& GetIndexArray() const { return m_index; }
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#if WXWIN_COMPATIBILITY_2_4
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// deprecated interface, new interface is arrays-based (see above)
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wxDEPRECATED( wxHtmlContentsItem* GetContents() );
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wxDEPRECATED( int GetContentsCnt() );
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wxDEPRECATED( wxHtmlContentsItem* GetIndex() );
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wxDEPRECATED( int GetIndexCnt() );
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#endif
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protected:
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wxString m_tempPath;
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// each book has one record in this array:
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wxHtmlBookRecArray m_bookRecords;
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wxHtmlHelpDataItems m_contents; // list of all available books and pages
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wxHtmlHelpDataItems m_index; // list of index itesm
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#if WXWIN_COMPATIBILITY_2_4
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// deprecated data structures, set only if GetContents(), GetIndex()
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// called
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wxHtmlContentsItem* m_cacheContents;
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wxHtmlContentsItem* m_cacheIndex;
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private:
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void CleanCompatibilityData();
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#endif
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protected:
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// Imports .hhp files (MS HTML Help Workshop)
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bool LoadMSProject(wxHtmlBookRecord *book, wxFileSystem& fsys,
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const wxString& indexfile, const wxString& contentsfile);
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// Reads binary book
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bool LoadCachedBook(wxHtmlBookRecord *book, wxInputStream *f);
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// Writes binary book
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bool SaveCachedBook(wxHtmlBookRecord *book, wxOutputStream *f);
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DECLARE_NO_COPY_CLASS(wxHtmlHelpData)
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};
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#endif
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#endif
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