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Re: [lmi] help implementation

From: Greg Chicares
Subject: Re: [lmi] help implementation
Date: Thu, 28 Feb 2008 21:25:40 +0000
User-agent: Thunderbird 2.0.0.9 (Windows/20071031) 
On 2008-02-27 21:38Z, Vaclav Slavik wrote:
> 
> Below is a patch to add F1 support.

I think I've applied the patch successfully (adjusting manually
for the odd way some long lines came through), but I keep getting

Error
Unable to load help files '/opt/lmi/data/lmihelp.hhp'.
[file /lmi/src/lmi/main_wx.cpp, line 459]

Lmi_wx Error
Cannot open HTML help book: /opt/lmi/data/lmihelp.hhp

I'm quite sure I've copied both files
  lmihelp.hhc
  lmihelp.hhp
to the right place. I even added a test[1] that AFAICT proves it.

I also tried creating html files referenced by the help files:

/usr/bin[0]$cd /opt/lmi/data
/opt/lmi/data[0]$touch index.html
/opt/lmi/data[0]$touch doc1.htm
/opt/lmi/data[0]$touch doc2.htm
/opt/lmi/data[0]$touch doc3.htm
/opt/lmi/data[0]$touch doc4.htm
/opt/lmi/data[0]$touch doc5.htm
/opt/lmi/data[0]$ls -o *.hh*
-rwx------+ 1 chicares 996 Feb 28 20:11 lmihelp.hhc
-rwx------+ 1 chicares 365 Feb 28 20:44 lmihelp.hhp

and that's definitely the directory where all other lmi data
files reside.

I also tried suppressing this line
        wxHelpProvider::Set(new(wx) wxSimpleHelpProvider);
that I had committed on 20080228T1731Z, and also tried changing
it to this
        wxHelpProvider::Set(new(wx) wxHelpControllerHelpProvider);
but those things didn't work, either.

I ran the program under 'gdb', but observed no wx debug message.

I even tried

/opt/lmi/data[0]$u2d lmihelp.hhc lmihelp.hhp

in case CRLF line endings were necessary, but that didn't help.

If I comment out
  if(!help_controller_->AddBook(path.string()))
and the error-reporting block it governs, then everything seems
to work fine. Let me cat the *.hh* files below[2] in case that's
of any use.

---------

[1] Experimentally call access() to ensure file exists
(this test always says "The help file is accessible."):

+ #include "platform_dependent.hpp" // access()
  void Skeleton::InitHelp()
  {
      help_controller_ = new(wx) wxHtmlHelpController(wxHF_DEFAULT_STYLE, 
frame_);

      fs::path path(global_settings::instance().data_directory() / 
"lmihelp.hhp");

+     if(access(path.string().c_str(), R_OK))
+         {
+         fatal_error()
+             << "File '"
+             << path.string()
+             << "' is required but could not be found. Try reinstalling."
+             << LMI_FLUSH
+             ;
+         }
+     else warning() << "The help file is accessible." << std::flush;
+
      if(!help_controller_->AddBook(path.string()))

[2] Here are my *.hh* files:

/opt/lmi/data[0]$for z in *.hh*; do echo $z; cat $z; done;
lmihelp.hhc
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<HTML>
<HEAD>
<!-- Sitemap 1.0 -->
</HEAD><BODY>
<OBJECT type="text/site properties">
 <param name="ImageType" value="Folder">
</OBJECT>
<UL>
<LI> <OBJECT type="text/sitemap">
<param name="Local" value="index.html">
<param name="Name" value="Contents">
</OBJECT>
 <LI> <OBJECT type="text/sitemap">
  <param name="Local" value="doc1.htm#intro">
  <param name="Name" value="Introduction">
  </OBJECT>
<UL> <LI> <OBJECT type="text/sitemap">
  <param name="Local" value="doc2.htm#classes">
  <param name="Name" value="Classes">
  </OBJECT>
 <LI> <OBJECT type="text/sitemap">
  <param name="Local" value="doc3.htm#functions">
  <param name="Name" value="Functions">
  </OBJECT>
 <LI> <OBJECT type="text/sitemap">
  <param name="Local" value="doc4.htm#about">
  <param name="Name" value="About">
  </OBJECT>
</UL> <LI> <OBJECT type="text/sitemap">
  <param name="Local" value="doc5.htm#chapter2">
  <param name="Name" value="Chapter 2">
  </OBJECT>
</UL>
lmihelp.hhp
[OPTIONS]
Compatibility=1.1 or later
Compiled file=lmihelp.chm
Contents file=lmihelp.hhc
Default Window=default
Default topic=index.html
Display compile progress=Yes
Full-text search=Yes
Language=0x809 English (United Kingdom)
Title=LMI Help

[WINDOWS]
default="LMI Help","lmihelp.hhc",,"index.html",,,,,,0x2420,,0x380e,,,,,0,,,0


[FILES]
index.html

[INFOTYPES]

/opt/lmi/data[0]$
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