Made the config directory available to plugins

This commit is contained in:
Klaus Schmidinger
2002-05-13 16:11:19 +02:00
parent bbddf7e2db
commit 49fcbf19fa
6 changed files with 86 additions and 5 deletions

View File

@@ -513,7 +513,7 @@ the plugin should launch a separate thread to do this.
</b>
<!--X1.1.2--></td></tr></table>
<hr><h2>Setup parameters</h2>
<a name="Setup parameters"><hr><h2>Setup parameters</h2>
<center><i><b>Remember me...</b></i></center><p>
@@ -648,6 +648,63 @@ your setup parameters and use that one to copy all parameters with one single st
(like VDR does with its cSetup class).
<!--X1.1.1--></td></tr></table>
<!--X1.1.2--><table width=100%><tr><td bgcolor=red>&nbsp;</td><td width=100%>
<hr><h2>Configuration files</h2>
<center><i><b>I want my own stuff!</b></i></center><p>
There may be situations where a plugin requires configuration files of its own, maybe
for data that can't be stored in the simple <a href="#Setup parameters">setup parameters</a>
of VDR, or maybe because it needs to launch other programs that simply need a separate
configuration file. While the plugin is free to store such files anywhere it
sees fit, it might be a good idea to put them in a common place, preferably
where other configuration data already exists. VDR provides the function
<p><table><tr><td bgcolor=#F0F0F0><pre><br>
const char *ConfigDirectory(const char *PluginName = NULL);
</pre></td></tr></table><p>
which returns a string containing the directory that VDR uses for its own configuration
files (defined through the <tt><b>-c</b></tt> option in the call to VDR), extended by
<tt>"/plugins"</tt>. So assuming the VDR configuration directory is <tt>/video</tt>
(the default if no <tt><b>-c</b></tt> or <tt><b>-v</b></tt> option is given),
a call to <tt>ConfigDirectory()</tt> will return <tt>/video/plugins</tt>. The first
call to <tt>ConfigDirectory()</tt> will automatically make sure that the <tt>plugins</tt>
subdirectory will exist. If, for some reason, this cannot be achieved, <tt>NULL</tt>
will be returned.
<p>
The additional <tt>plugins</tt> directory is used to keep files from plugins apart
from those of VDR itself, making sure there will be no name clashes. If a plugin
needs only one extra configuration file, it is suggested that this file be named
<tt>name.conf</tt>, where <i>name</i> shall be the name of the plugin.
<p>
If a plugin needs more than one such file, it is suggested that the plugin stores
these in a subdirectory of its own, named after the plugin. To easily get such a name
the <tt>ConfigDirectory()</tt> function can be given an additional string that will
be appended to the returned directory name, as in
<p><table><tr><td bgcolor=#F0F0F0><pre><br>
const char *MyConfigDir = ConfigDirectory(Name());
</pre></td></tr></table><p>
where <tt>Name()</tt> is the member function of the plugin class that returns the
plugin's name. Again, VDR will make sure that the requested directory will exist
(or return <tt>NULL</tt> in case of an error).
<p>
<b>
The returned string is statically allocated and will be overwritten by subsequent
calls to ConfigDirectory()!
</b>
<p>
The <tt>ConfigDirectory()</tt> function is a static member function of the <tt>cPlugin</tt>
class. This allows it to be called even from outside any member function of the derived
plugin class, by writing
<p><table><tr><td bgcolor=#F0F0F0><pre><br>
const char *MyConfigDir = cPlugin::ConfigDirectory();
</pre></td></tr></table><p>
<!--X1.1.2--></td></tr></table>
<a name="Internationalization"><hr><h2>Internationalization</h2>
<center><i><b>Welcome to Babylon!</b></i></center><p>