src/msw/helpwin.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        helpwin.cpp
   3 // Purpose:     Help system: WinHelp implementation
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "helpwin.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/defs.h"
  25 #endif
  26
  27 #include "wx/msw/helpwin.h"
  28
  29 #if wxUSE_HELP
  30 #include <time.h>
  31
  32 #ifdef __WXMSW__
  33 #include "wx/msw/private.h"
  34 #endif
  35
  36 #include <string.h>
  37
  38 // MAX path length
  39 #define _MAXPATHLEN 500
  40
  41 // MAX length of Help descriptor
  42 #define _MAX_HELP_LEN 500
  43
  44 #if !USE_SHARED_LIBRARY
  45 IMPLEMENT_DYNAMIC_CLASS(wxWinHelpController, wxHelpControllerBase)
  46 #endif
  47
  48 wxWinHelpController::wxWinHelpController(void)
  49 {
  50   m_helpFile = "";
  51 }
  52
  53 wxWinHelpController::~wxWinHelpController(void)
  54 {
  55 }
  56
  57 bool wxWinHelpController::Initialize(const wxString& filename)
  58 {
  59   m_helpFile = filename;
  60   return TRUE;
  61 }
  62
  63 bool wxWinHelpController::LoadFile(const wxString& file)
  64 {
  65   m_helpFile = file;
  66   return TRUE;
  67 }
  68
  69 bool wxWinHelpController::DisplayContents(void)
  70 {
  71     if (m_helpFile == wxT("")) return FALSE;
  72
  73     wxString str = m_helpFile;
  74     size_t len = str.Length();
  75     if (!(str[(size_t)(len-1)] == wxT('p') && str[(size_t)(len-2)] == wxT('l') && str[(size_t)(len-3)] == wxT('h') && str[(size_t)(len-4)] == wxT('.')))
  76       str += wxT(".hlp");
  77
  78     if (wxTheApp->GetTopWindow())
  79     {
  80 #if defined(__WIN95__)
  81       WinHelp((HWND) wxTheApp->GetTopWindow()->GetHWND(), (const wxChar*) str, HELP_FINDER, 0L);
  82 #else
  83       WinHelp((HWND) wxTheApp->GetTopWindow()->GetHWND(), (const wxChar*) str, HELP_CONTENTS, 0L);
  84 #endif
  85      return TRUE;
  86     }
  87         return FALSE;
  88 }
  89
  90 bool wxWinHelpController::DisplaySection(int section)
  91 {
  92     // Use context number
  93     if (m_helpFile == wxT("")) return FALSE;
  94
  95     wxString str = m_helpFile;
  96     size_t len = str.Length();
  97     if (!(str[(size_t)(len-1)] == wxT('p') && str[(size_t)(len-2)] == wxT('l') && str[(size_t)(len-3)] == wxT('h') && str[(size_t)(len-4)] == wxT('.')))
  98       str += wxT(".hlp");
  99
 100     if (wxTheApp->GetTopWindow())
 101         {
 102       WinHelp((HWND) wxTheApp->GetTopWindow()->GetHWND(), (const wxChar*) str, HELP_CONTEXT, (DWORD)section);
 103       return TRUE;
 104         }
 105     return FALSE;
 106 }
 107
 108 bool wxWinHelpController::DisplayBlock(long block)
 109 {
 110     // Use context number -- a very rough equivalent to block id!
 111     if (m_helpFile == wxT("")) return FALSE;
 112
 113     wxString str = m_helpFile;
 114     size_t len = str.Length();
 115     if (!(str[(size_t)(len-1)] == 'p' && str[(size_t)(len-2)] == 'l' && str[(size_t)(len-3)] == 'h' && str[(size_t)(len-4)] == '.'))
 116       str += wxT(".hlp");
 117
 118     if (wxTheApp->GetTopWindow())
 119         {
 120       WinHelp((HWND) wxTheApp->GetTopWindow()->GetHWND(), (const wxChar*) str, HELP_CONTEXT, (DWORD)block);
 121       return TRUE;
 122         }
 123     return FALSE;
 124 }
 125
 126 bool wxWinHelpController::KeywordSearch(const wxString& k)
 127 {
 128     if (m_helpFile == wxT("")) return FALSE;
 129
 130     wxString str = m_helpFile;
 131     size_t len = str.Length();
 132     if (!(str[(size_t)(len-1)] == wxT('p') && str[(size_t)(len-2)] == wxT('l') && str[(size_t)(len-3)] == wxT('h') && str[(size_t)(len-4)] == wxT('.')))
 133       str += wxT(".hlp");
 134
 135     if (wxTheApp->GetTopWindow())
 136     {
 137       WinHelp((HWND) wxTheApp->GetTopWindow()->GetHWND(), (const wxChar*) str, HELP_PARTIALKEY, (DWORD)(const wxChar*) k);
 138       return TRUE;
 139     }
 140     return FALSE;
 141 }
 142
 143 // Can't close the help window explicitly in WinHelp
 144 bool wxWinHelpController::Quit(void)
 145 {
 146   if (wxTheApp->GetTopWindow())
 147   {
 148     WinHelp((HWND) wxTheApp->GetTopWindow()->GetHWND(), 0, HELP_QUIT, 0L);
 149     return TRUE;
 150   }
 151   else
 152     return FALSE;
 153 }
 154
 155 // Don't get notified of WinHelp quitting
 156 void wxWinHelpController::OnQuit(void)
 157 {
 158 }
 159
 160 #endif // wxUSE_HELP