New HTML help system. The old controller class has been split in
three parts; basic data, a frame and a controller. Docs will appear shortly... All Makefiles should be correctly updated. To be sure, I put an #error pragma in the old files, which will be removed in a few days. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3620 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Harco de Hilster
577
src/html/helpdata.cpp
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577
src/html/helpdata.cpp
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@@ -0,0 +1,577 @@
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/////////////////////////////////////////////////////////////////////////////
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// Name: helpdata.cpp
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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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// Created:
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// RCS-ID:
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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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#ifdef __GNUG__
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#pragma implementation "helpdata.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/defs.h"
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#if wxUSE_HTML
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#ifndef WXPRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/html/helpdata.h"
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#include "wx/tokenzr.h"
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#include "wx/wfstream.h"
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#include "wx/busyinfo.h"
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#include "wx/html/htmlparser.h"
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#include "wx/html/htmldefs.h"
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#include "wx/arrimpl.cpp"
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WX_DEFINE_OBJARRAY(wxHtmlBookRecArray)
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//-----------------------------------------------------------------------------
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// static helper functions
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//-----------------------------------------------------------------------------
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// Reads one line, stores it into buf and returns pointer to new line or NULL.
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static char* ReadLine(char *line, char *buf)
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{
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char *writeptr = buf, *readptr = line;
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while (*readptr != 0 && *readptr != '\r' && *readptr != '\n') *(writeptr++) = *(readptr++);
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*writeptr = 0;
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while (*readptr == '\r' || *readptr == '\n') readptr++;
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if (*readptr == 0) return NULL;
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else return readptr;
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}
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static wxString SafeFileName(const wxString& s)
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{
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wxString res = s;
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res.Replace(":", "_", TRUE);
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res.Replace(" ", "_", TRUE);
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res.Replace("/", "_", TRUE);
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res.Replace("\\", "_", TRUE);
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res.Replace("#", "_", TRUE);
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res.Replace(".", "_", TRUE);
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return res;
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}
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static int IndexCompareFunc(const void *a, const void *b)
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{
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return strcmp(((wxHtmlContentsItem*)a) -> m_Name, ((wxHtmlContentsItem*)b) -> m_Name);
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}
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//-----------------------------------------------------------------------------
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// HP_Parser
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//-----------------------------------------------------------------------------
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class HP_Parser : public wxHtmlParser
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{
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public:
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void AddText(const char* text) {}
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wxObject* GetProduct() {return NULL;}
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};
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//-----------------------------------------------------------------------------
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// HP_TagHandler
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//-----------------------------------------------------------------------------
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class HP_TagHandler : public wxHtmlTagHandler
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{
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private:
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wxString m_Name, m_Page;
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int m_Level;
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int m_ID;
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int m_Index;
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wxHtmlContentsItem *m_Items;
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int m_ItemsCnt;
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wxHtmlBookRecord *m_Book;
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public:
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HP_TagHandler(wxHtmlBookRecord *b) : wxHtmlTagHandler() {m_Book = b; m_Items = NULL; m_ItemsCnt = 0; m_Name = m_Page = wxEmptyString; m_Level = 0;}
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wxString GetSupportedTags() {return "UL,OBJECT,PARAM";}
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bool HandleTag(const wxHtmlTag& tag);
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void WriteOut(wxHtmlContentsItem*& array, int& size);
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void ReadIn(wxHtmlContentsItem* array, int size);
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};
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bool HP_TagHandler::HandleTag(const wxHtmlTag& tag)
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{
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if (tag.GetName() == "UL") {
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m_Level++;
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ParseInner(tag);
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m_Level--;
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return TRUE;
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}
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else if (tag.GetName() == "OBJECT") {
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m_Name = m_Page = wxEmptyString;
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ParseInner(tag);
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if (m_Page != wxEmptyString) {
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if (m_ItemsCnt % HTML_REALLOC_STEP == 0)
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m_Items = (wxHtmlContentsItem*) realloc(m_Items, (m_ItemsCnt + HTML_REALLOC_STEP) * sizeof(wxHtmlContentsItem));
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m_Items[m_ItemsCnt].m_Level = m_Level;
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m_Items[m_ItemsCnt].m_ID = m_ID;
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m_Items[m_ItemsCnt].m_Page = new char[m_Page.Length() + 1];
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strcpy(m_Items[m_ItemsCnt].m_Page, m_Page.c_str());
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m_Items[m_ItemsCnt].m_Name = new char [m_Name.Length() + 1];
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strcpy(m_Items[m_ItemsCnt].m_Name, m_Name.c_str());
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m_Items[m_ItemsCnt].m_Book = m_Book;
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m_ItemsCnt++;
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}
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return TRUE;
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}
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else { // "PARAM"
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if (m_Name == wxEmptyString && tag.GetParam("NAME") == "Name") m_Name = tag.GetParam("VALUE");
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if (tag.GetParam("NAME") == "Local") m_Page = tag.GetParam("VALUE");
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if (tag.GetParam("NAME") == "ID") tag.ScanParam("VALUE", "%i", &m_ID);
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return FALSE;
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}
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}
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void HP_TagHandler::WriteOut(wxHtmlContentsItem*& array, int& size)
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{
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array = m_Items;
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size = m_ItemsCnt;
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m_Items = NULL;
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m_ItemsCnt = 0;
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}
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void HP_TagHandler::ReadIn(wxHtmlContentsItem* array, int size)
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{
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m_Items = array;
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m_ItemsCnt = size;
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}
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//-----------------------------------------------------------------------------
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// wxHtmlHelpData
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//-----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxHtmlHelpData, wxObject)
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wxHtmlHelpData::wxHtmlHelpData()
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{
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m_TempPath = wxEmptyString;
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m_Contents = NULL;
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m_ContentsCnt = 0;
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m_Index = NULL;
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m_IndexCnt = 0;
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}
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wxHtmlHelpData::~wxHtmlHelpData()
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{
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int i;
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m_BookRecords.Empty();
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if (m_Contents) {
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for (i = 0; i < m_ContentsCnt; i++) {
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delete[] m_Contents[i].m_Page;
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delete[] m_Contents[i].m_Name;
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}
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free(m_Contents);
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}
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if (m_Index) {
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for (i = 0; i < m_IndexCnt; i++) {
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delete[] m_Index[i].m_Page;
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delete[] m_Index[i].m_Name;
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}
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free(m_Index);
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}
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}
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bool wxHtmlHelpData::LoadMSProject(wxHtmlBookRecord *book, wxFileSystem& fsys, const wxString& indexfile, const wxString& contentsfile)
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{
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wxFSFile *f;
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char *buf;
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int sz;
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wxString string;
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HP_Parser parser;
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HP_TagHandler *handler = new HP_TagHandler(book);
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parser.AddTagHandler(handler);
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f = ( contentsfile.IsEmpty() ? NULL : fsys.OpenFile(contentsfile) );
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if (f) {
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sz = f -> GetStream() -> GetSize();
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buf = new char[sz+1];
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buf[sz] = 0;
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f -> GetStream() -> Read(buf, sz);
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delete f;
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handler -> ReadIn(m_Contents, m_ContentsCnt);
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parser.Parse(buf);
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handler -> WriteOut(m_Contents, m_ContentsCnt);
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delete[] buf;
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}
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f = ( indexfile.IsEmpty() ? NULL : fsys.OpenFile(indexfile) );
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if (f) {
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sz = f -> GetStream() -> GetSize();
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buf = new char[sz+1];
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buf[sz] = 0;
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f -> GetStream() -> Read(buf, sz);
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delete f;
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handler -> ReadIn(m_Index, m_IndexCnt);
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parser.Parse(buf);
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handler -> WriteOut(m_Index, m_IndexCnt);
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delete[] buf;
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}
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return TRUE;
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}
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bool wxHtmlHelpData::LoadCachedBook(wxHtmlBookRecord *book, wxInputStream *f)
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{
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int i, st;
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int x;
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/* load contents : */
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f -> Read(&x, sizeof(x));
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st = m_ContentsCnt;
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m_ContentsCnt += x;
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m_Contents = (wxHtmlContentsItem*) realloc(m_Contents, (m_ContentsCnt / HTML_REALLOC_STEP + 1) * HTML_REALLOC_STEP * sizeof(wxHtmlContentsItem));
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for (i = st; i < m_ContentsCnt; i++) {
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f -> Read(&x, sizeof(x));
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m_Contents[i].m_Level = x;
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f -> Read(&x, sizeof(x));
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m_Contents[i].m_ID = x;
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f -> Read(&x, sizeof(x));
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m_Contents[i].m_Name = new char[x];
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f -> Read(m_Contents[i].m_Name, x);
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f -> Read(&x, sizeof(x));
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m_Contents[i].m_Page = new char[x];
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f -> Read(m_Contents[i].m_Page, x);
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m_Contents[i].m_Book = book;
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}
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/* load index : */
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f -> Read(&x, sizeof(x));
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st = m_IndexCnt;
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m_IndexCnt += x;
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m_Index = (wxHtmlContentsItem*) realloc(m_Index, (m_IndexCnt / HTML_REALLOC_STEP + 1) * HTML_REALLOC_STEP * sizeof(wxHtmlContentsItem));
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for (i = st; i < m_IndexCnt; i++) {
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f -> Read(&x, sizeof(x));
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m_Index[i].m_Name = new char[x];
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f -> Read(m_Index[i].m_Name, x);
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f -> Read(&x, sizeof(x));
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m_Index[i].m_Page = new char[x];
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f -> Read(m_Index[i].m_Page, x);
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m_Index[i].m_Book = book;
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}
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return TRUE;
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}
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bool wxHtmlHelpData::SaveCachedBook(wxHtmlBookRecord *book, wxOutputStream *f)
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{
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int i;
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int x;
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/* save contents : */
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x = 0;
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for (i = 0; i < m_ContentsCnt; i++) if (m_Contents[i].m_Book == book && m_Contents[i].m_Level > 0) x++;
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f -> Write(&x, sizeof(x));
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for (i = 0; i < m_ContentsCnt; i++) {
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if (m_Contents[i].m_Book != book || m_Contents[i].m_Level == 0) continue;
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x = m_Contents[i].m_Level;
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f -> Write(&x, sizeof(x));
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x = m_Contents[i].m_ID;
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f -> Write(&x, sizeof(x));
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x = strlen(m_Contents[i].m_Name) + 1;
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f -> Write(&x, sizeof(x));
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f -> Write(m_Contents[i].m_Name, x);
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x = strlen(m_Contents[i].m_Page) + 1;
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f -> Write(&x, sizeof(x));
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f -> Write(m_Contents[i].m_Page, x);
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}
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/* save index : */
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x = 0;
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for (i = 0; i < m_IndexCnt; i++) if (m_Index[i].m_Book == book && m_Index[i].m_Level > 0) x++;
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f -> Write(&x, sizeof(x));
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for (i = 0; i < m_IndexCnt; i++) {
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if (m_Index[i].m_Book != book || m_Index[i].m_Level == 0) continue;
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x = strlen(m_Index[i].m_Name) + 1;
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f -> Write(&x, sizeof(x));
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f -> Write(m_Index[i].m_Name, x);
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x = strlen(m_Index[i].m_Page) + 1;
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f -> Write(&x, sizeof(x));
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f -> Write(m_Index[i].m_Page, x);
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}
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return TRUE;
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}
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void wxHtmlHelpData::SetTempDir(const wxString& path)
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{
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if (path == wxEmptyString) m_TempPath = path;
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else {
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if (wxIsAbsolutePath(path)) m_TempPath = path;
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else m_TempPath = wxGetCwd() + "/" + path;
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if (m_TempPath[m_TempPath.Length() - 1] != '/')
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m_TempPath << "/";
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}
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}
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bool wxHtmlHelpData::AddBookParam(const wxString& title, const wxString& contfile,
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const wxString& indexfile, const wxString& deftopic,
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const wxString& path)
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{
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wxFileSystem fsys;
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wxFSFile *fi;
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wxHtmlBookRecord *bookr;
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wxString safetitle;
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if (! path.IsEmpty())
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// workaround for bug in ChangePathTo(name, TRUE)
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fsys.ChangePathTo(path+"/gaga");
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bookr = new wxHtmlBookRecord(path+'/', title, deftopic);
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if (m_ContentsCnt % HTML_REALLOC_STEP == 0)
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m_Contents = (wxHtmlContentsItem*) realloc(m_Contents, (m_ContentsCnt + HTML_REALLOC_STEP) * sizeof(wxHtmlContentsItem));
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m_Contents[m_ContentsCnt].m_Level = 0;
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m_Contents[m_ContentsCnt].m_ID = 0;
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m_Contents[m_ContentsCnt].m_Page = new char[deftopic.Length() + 1];
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strcpy(m_Contents[m_ContentsCnt].m_Page, deftopic.c_str());
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m_Contents[m_ContentsCnt].m_Name = new char [title.Length() + 1];
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strcpy(m_Contents[m_ContentsCnt].m_Name, title.c_str());
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m_Contents[m_ContentsCnt].m_Book = bookr;
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// store the contents index for later
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int cont_start = m_ContentsCnt++;
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// Try to find cached binary versions:
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safetitle = SafeFileName(title);
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fi = fsys.OpenFile(safetitle + ".cached");
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if (fi == NULL) fi = fsys.OpenFile(m_TempPath + safetitle + ".cached");
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if ((fi == NULL) || (m_TempPath == wxEmptyString)) {
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LoadMSProject(bookr, fsys, indexfile, contfile);
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if (m_TempPath != wxEmptyString) {
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wxFileOutputStream *outs = new wxFileOutputStream(m_TempPath + safetitle + ".cached");
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SaveCachedBook(bookr, outs);
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delete outs;
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}
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}
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else {
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LoadCachedBook(bookr, fi -> GetStream());
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delete fi;
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}
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// Now store the contents range
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bookr->SetContentsRange(cont_start, m_ContentsCnt);
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m_BookRecords.Add(bookr);
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if (m_IndexCnt > 0)
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qsort(m_Index, m_IndexCnt, sizeof(wxHtmlContentsItem), IndexCompareFunc);
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return TRUE;
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}
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bool wxHtmlHelpData::AddBook(const wxString& book)
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{
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wxFSFile *fi;
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wxFileSystem fsys;
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wxInputStream *s;
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wxString bookFull;
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int sz;
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char *buff, *lineptr;
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char linebuf[300];
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wxString title = _("noname"),
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safetitle,
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start = wxEmptyString,
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contents = wxEmptyString, index = wxEmptyString;
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if (wxIsAbsolutePath(book)) bookFull = book;
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else bookFull = wxGetCwd() + "/" + book;
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fi = fsys.OpenFile(bookFull);
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if (fi == NULL) return FALSE;
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fsys.ChangePathTo(bookFull);
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s = fi -> GetStream();
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sz = s -> GetSize();
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buff = new char[sz+1];
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buff[sz] = 0;
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s -> Read(buff, sz);
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lineptr = buff;
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delete fi;
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while ((lineptr = ReadLine(lineptr, linebuf)) != NULL) {
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if (strstr(linebuf, "Title=") == linebuf)
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title = linebuf + strlen("Title=");
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if (strstr(linebuf, "Default topic=") == linebuf)
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start = linebuf + strlen("Default topic=");
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if (strstr(linebuf, "Index file=") == linebuf)
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index = linebuf + strlen("Index file=");
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if (strstr(linebuf, "Contents file=") == linebuf)
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contents = linebuf + strlen("Contents file=");
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}
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delete[] buff;
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return AddBookParam(title, contents, index, start, fsys.GetPath());
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}
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wxString wxHtmlHelpData::FindPageByName(const wxString& x)
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{
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int cnt;
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int i;
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wxFileSystem fsys;
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wxFSFile *f;
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wxString url(wxEmptyString);
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/* 1. try to open given file: */
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cnt = m_BookRecords.GetCount();
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for (i = 0; i < cnt; i++) {
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f = fsys.OpenFile(m_BookRecords[i].GetBasePath() + x);
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if (f) {
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url = m_BookRecords[i].GetBasePath() + x;
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delete f;
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return url;
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}
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}
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/* 2. try to find a book: */
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for (i = 0; i < cnt; i++) {
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if (m_BookRecords[i].GetTitle() == x) {
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url = m_BookRecords[i].GetBasePath() + m_BookRecords[i].GetStart();
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return url;
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}
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||||
}
|
||||
|
||||
/* 3. try to find in contents: */
|
||||
|
||||
cnt = m_ContentsCnt;
|
||||
for (i = 0; i < cnt; i++) {
|
||||
if (strcmp(m_Contents[i].m_Name, x) == 0) {
|
||||
url = m_Contents[i].m_Book -> GetBasePath() + m_Contents[i].m_Page;
|
||||
return url;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* 4. try to find in index: */
|
||||
|
||||
cnt = m_IndexCnt;
|
||||
for (i = 0; i < cnt; i++) {
|
||||
if (strcmp(m_Index[i].m_Name, x) == 0) {
|
||||
url = m_Index[i].m_Book -> GetBasePath() + m_Index[i].m_Page;
|
||||
return url;
|
||||
}
|
||||
}
|
||||
|
||||
return url;
|
||||
}
|
||||
|
||||
wxString wxHtmlHelpData::FindPageById(int id)
|
||||
{
|
||||
int i;
|
||||
wxString url(wxEmptyString);
|
||||
|
||||
for (i = 0; i < m_ContentsCnt; i++) {
|
||||
if (m_Contents[i].m_ID == id) {
|
||||
url = m_Contents[i].m_Book -> GetBasePath() + m_Contents[i].m_Page;
|
||||
return url;
|
||||
}
|
||||
}
|
||||
|
||||
return url;
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------------
|
||||
// wxHtmlSearchStatus functions
|
||||
//----------------------------------------------------------------------------------
|
||||
|
||||
wxHtmlSearchStatus::wxHtmlSearchStatus(wxHtmlHelpData* data, const wxString& keyword,
|
||||
const wxString& book = wxEmptyString)
|
||||
{
|
||||
m_Data = data;
|
||||
m_Keyword = keyword;
|
||||
wxHtmlBookRecord* bookr = NULL;
|
||||
if (book != wxEmptyString) {
|
||||
// we have to search in a specific book. Find it first
|
||||
int i,cnt = data->m_BookRecords.GetCount();
|
||||
for (i=0; i<cnt; i++)
|
||||
if (data->m_BookRecords[i].GetTitle() == book) {
|
||||
bookr = &(data->m_BookRecords[i]);
|
||||
m_CurIndex = bookr->GetContentsStart();
|
||||
m_MaxIndex = bookr->GetContentsEnd();
|
||||
break;
|
||||
}
|
||||
// check; we won't crash if the book doesn't exist, but it's Bad Anyway.
|
||||
wxASSERT(bookr);
|
||||
}
|
||||
if (! bookr) {
|
||||
// no book specified; search all books
|
||||
m_CurIndex = 0;
|
||||
m_MaxIndex = m_Data->m_ContentsCnt;
|
||||
}
|
||||
m_Engine.LookFor(keyword);
|
||||
m_Active = (m_CurIndex < m_MaxIndex);
|
||||
m_LastPage = wxEmptyString;
|
||||
}
|
||||
|
||||
bool wxHtmlSearchStatus::Search()
|
||||
{
|
||||
wxFileSystem fsys;
|
||||
wxFSFile *file;
|
||||
int i = m_CurIndex; // shortcut
|
||||
bool found = FALSE;
|
||||
|
||||
if (! m_Active) {
|
||||
// sanity check. Illegal use, but we'll try to prevent a crash anyway
|
||||
wxASSERT(0);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
m_ContentsItem = NULL;
|
||||
m_Name = wxEmptyString;
|
||||
|
||||
file = fsys.OpenFile(m_Data->m_Contents[i].m_Book -> GetBasePath() +
|
||||
m_Data->m_Contents[i].m_Page);
|
||||
if (file) {
|
||||
if (m_LastPage != file->GetLocation()) {
|
||||
m_LastPage = file->GetLocation();
|
||||
if (m_Engine.Scan(file -> GetStream())) {
|
||||
m_Name = m_Data->m_Contents[i].m_Name;
|
||||
m_ContentsItem = m_Data->m_Contents + i;
|
||||
found = true;
|
||||
}
|
||||
}
|
||||
delete file;
|
||||
}
|
||||
m_Active = (++m_CurIndex < m_MaxIndex);
|
||||
return found;
|
||||
}
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user