\section{\class{wxFileType}}\label{wxfiletype}
-This class holds information about a given "file type". File type is the same as
+This class holds information about a given {\it file type}. File type is the same as
MIME type under Unix, but under Windows it corresponds more to an extension than
to MIME type (in fact, several extensions may correspond to a file type). This
object may be created in several different ways: the program might know the file
extension and wish to find out the corresponding MIME type or, conversely, it
might want to find the right extension for the file to which it writes the
contents of given MIME type. Depending on how it was created some fields may be
-unknown so the return value of all the accessors {\bf must} be checked: FALSE
+unknown so the return value of all the accessors {\bf must} be checked: {\tt false}
will be returned if the corresponding information couldn't be found.
The objects of this class are never created by the application code but are
returned by \helpref{wxMimeTypesManager::GetFileTypeFromMimeType}{wxmimetypesmanagergetfiletypefrommimetype} and
\helpref{wxMimeTypesManager::GetFileTypeFromExtension}{wxmimetypesmanagergetfiletypefromextension} methods.
-But it's your responsability to delete the returned pointer when you're done
+But it is your responsibility to delete the returned pointer when you're done
with it!
% TODO describe MIME types better than this...
-A brief remainder about what the MIME types are (see the RFC 1341 for more
-information): basicly, it is just a pair category/type (for example,
-"text/plain") where the category is a basic indication of what a file is
-(examples of categories are "application", "image", "text", "binary"...) and
+A brief reminder about what the MIME types are (see the RFC 1341 for more
+information): basically, it is just a pair category/type (for example,
+"text/plain") where the category is a basic indication of what a file is.
+Examples of categories are "application", "image", "text", "binary", and
type is a precise definition of the document format: "plain" in the example
above means just ASCII text without any formatting, while "text/html" is the
HTML document source.
typically correspond to the extension ".txt", but may as well be associated with
".ini" or ".conf".
-\wxheading{Required headers}
+\wxheading{Derived from}
-#include <wx/mimetype.h>
+None
-\wxheading{Derived from}
+\wxheading{Include files}
-No base class.
+<wx/mimetype.h>
\wxheading{See also}
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{MessageParameters class}{wxfiletypemessageparameters}
+\membersection{MessageParameters class}\label{wxfiletypemessageparameters}
One of the most common usages of MIME is to encode an e-mail message. The MIME
type of the encoded message is an example of a {\it message parameter}. These
the message, so, for example, an e-mail client program will have to pass them to
this program. Because wxFileType itself can not know about these parameters,
it uses MessageParameters class to query them. The default implementation only
-requiers the caller to provide the file name (always used by the program to be
+requires the caller to provide the file name (always used by the program to be
called - it must know which file to open) and the MIME type and supposes that
there are no other parameters. If you wish to supply additional parameters, you
must derive your own class from MessageParameters and override GetParamValue()
\begin{verbatim}
// provide the message parameters for the MIME type manager
-class MailMessageParamaters : public wxFileType::MessageParameters
+class MailMessageParameters : public wxFileType::MessageParameters
{
public:
- MailMessageParamaters(const wxString& filename,
+ MailMessageParameters(const wxString& filename,
const wxString& mimetype)
: wxFileType::MessageParameters(filename, mimetype)
{
\end{verbatim}
Now you only need to create an object of this class and pass it to, for example,
-\helpref{GetOpenCommand}{wxfiletypegetopencommand} like this:
+\rtfsp\helpref{GetOpenCommand}{wxfiletypegetopencommand} like this:
\begin{verbatim}
wxString command;
if ( filetype->GetOpenCommand(&command,
- MailMessageParamaters("foo.txt", "text/plain")) )
+ MailMessageParameters("foo.txt", "text/plain")) )
{
// the full command for opening the text documents is in 'command'
// (it might be "notepad foo.txt" under Windows or "cat foo.txt" under Unix)
{
// we don't know how to handle such files...
}
-
\end{verbatim}
{\bf Windows:} As only the file name is used by the program associated with the
ever derive from MessageParameters class for a Windows-only program.
\membersection{wxFileType::wxFileType}\label{wxfiletypewxfiletype}
+
\func{}{wxFileType}{\void}
The default constructor is private because you should never create objects of
-this type: they are only returned by
-\helpref{wxMimeTypesManager}{wxmimetypesmanager} methods.
+this type: they are only returned by \helpref{wxMimeTypesManager}{wxmimetypesmanager} methods.
\membersection{wxFileType::\destruct{wxFileType}}\label{wxfiletypedtor}
-\func{}{\destruct{wxFileType}{\void}
+
+\func{}{\destruct{wxFileType}}{\void}
The destructor of this class is not virtual, so it should not be derived from.
\membersection{wxFileType::GetMimeType}\label{wxfiletypegetmimetype}
-\func{bool}{GetMimeType}{\param{wxString *}{mimeType}}
-If the function returns TRUE, the string pointed to by {\it mimeType} is filled
+\func{bool}{GetMimeType}{\param{wxString*}{ mimeType}}
+
+If the function returns {\tt true}, the string pointed to by {\it mimeType} is filled
with full MIME type specification for this file type: for example, "text/plain".
+\membersection{wxFileType::GetMimeTypes}\label{wxfiletypegetmimetypes}
+
+\func{bool}{GetMimeType}{\param{wxArrayString\&}{ mimeTypes}}
+
+Same as \helpref{GetMimeType}{wxfiletypegetmimetype} but returns array of MIME
+types. This array will contain only one item in most cases but sometimes,
+notably under Unix with KDE, may contain more MIME types. This happens when
+one file extension is mapped to different MIME types by KDE, mailcap and
+mime.types.
+
\membersection{wxFileType::GetExtensions}\label{wxfiletypegetextensions}
-\func{bool}{GetExtensions}{\param{wxArrayString \&}{extensions}}
-If the function returns TRUE, the array {\it extensions} is filled
+\func{bool}{GetExtensions}{\param{wxArrayString\&}{ extensions}}
+
+If the function returns {\tt true}, the array {\it extensions} is filled
with all extensions associated with this file type: for example, it may
contain the following two elements for the MIME type "text/html" (notice the
absence of the leading dot): "html" and "htm".
{\bf Windows:} This function is currently not implemented: there is no
(efficient) way to retrieve associated extensions from the given MIME type on
-this platform, so it will only return TRUE if the wxFileType object was created
+this platform, so it will only return {\tt true} if the wxFileType object was created
by \helpref{GetFileTypeFromExtension}{wxmimetypesmanagergetfiletypefromextension}
function in the first place.
\membersection{wxFileType::GetIcon}\label{wxfiletypegeticon}
-\func{bool}{GetIcon}{\param{wxIcon *}{icon}}
-If the function returns TRUE, the icon associated with this file type will be
-created and assigned to the {\it icon} parameter.
+\func{bool}{GetIcon}{\param{wxIconLocation *}{ iconLoc}}
+
+If the function returns {\tt true}, the {\tt iconLoc} is filled with the
+location of the icon for this MIME type. A \helpref{wxIcon}{wxicon} may be
+created from {\it iconLoc} later.
+
+{\bf Windows:} The function returns the icon shown by Explorer for the files of
+the specified type.
-{\bf Unix:} This function always returns FALSE under Unix.
+{\bf Mac:} This function is not implemented and always returns {\tt false}.
+
+{\bf Unix:} MIME manager gathers information about icons from GNOME
+and KDE settings and thus GetIcon's success depends on availability
+of these desktop environments.
\membersection{wxFileType::GetDescription}\label{wxfiletypegetdescription}
-\func{bool}{GetDescription}{\param{wxString *}{desc}}
-If the function returns TRUE, the string pointed to by {\it desc} is filled
+\func{bool}{GetDescription}{\param{wxString*}{ desc}}
+
+If the function returns {\tt true}, the string pointed to by {\it desc} is filled
with a brief description for this file type: for example, "text document" for
the "text/plain" MIME type.
\membersection{wxFileType::GetOpenCommand}\label{wxfiletypegetopencommand}
-\func{bool}{GetOpenCommand}{\param{wxString *}{command},\param{MessageParameters \&}{params}}
-If the function returns TRUE, the string pointed to by {\it command} is filled
-with the command which must be executed (see \helpref{wxExecute}{wxexecute}) in
-order to open the file of the given type. The name of the file is
-retrieved from \helpref{MessageParameters}{wxfiletypemessageparameters} class.
+\func{bool}{GetOpenCommand}{\param{wxString*}{ command}, \param{MessageParameters\&}{ params}}
+
+\func{wxString}{GetOpenCommand}{\param{const wxString\&}{ filename}}
+
+With the first version of this method, if the {\tt true} is returned, the
+string pointed to by {\it command} is filled with the command which must be
+executed (see \helpref{wxExecute}{wxexecute}) in order to open the file of the
+given type. In this case, the name of the file as well as any other parameters
+is retrieved from \helpref{MessageParameters}{wxfiletypemessageparameters}
+class.
+
+In the second case, only the filename is specified and the command to be used
+to open this kind of file is returned directly. An empty string is returned to
+indicate that an error occurred (typically meaning that there is no standard way
+to open this kind of files).
\membersection{wxFileType::GetPrintCommand}\label{wxfiletypegetprintcommand}
-\func{bool}{GetPrintCommand}{\param{wxString *}{command},\param{MessageParameters \&}{params}}
-If the function returns TRUE, the string pointed to by {\it command} is filled
+\func{bool}{GetPrintCommand}{\param{wxString*}{ command},\param{MessageParameters\&}{ params}}
+
+If the function returns {\tt true}, the string pointed to by {\it command} is filled
with the command which must be executed (see \helpref{wxExecute}{wxexecute}) in
order to print the file of the given type. The name of the file is
retrieved from \helpref{MessageParameters}{wxfiletypemessageparameters} class.
\membersection{wxFileType::ExpandCommand}\label{wxfiletypeexpandcommand}
-\func{static wxString}{ExpandCommand}{\param{const wxString \&}{command},\param{MessageParameters \&}{params}}
-This function is primarly intended for GetOpenCommand and GetPrintCommand
+\func{static wxString}{ExpandCommand}{\param{const wxString\&}{ command}, \param{MessageParameters\&}{ params}}
+
+This function is primarily intended for GetOpenCommand and GetPrintCommand
usage but may be also used by the application directly if, for example, you want
to use some non default command to open the file.
-The function replaces all occurences of
+The function replaces all occurrences of
+
\twocolwidtha{7cm}
\begin{twocollist}\itemsep=0pt
-\twocolitem{format specificator}{with}
+\twocolitem{format specification}{with}
\twocolitem{\%s}{the full file name}
\twocolitem{\%t}{the MIME type}
\twocolitem{\%\{param\}}{the value of the parameter {\it param}}
\end{twocollist}
+
using the MessageParameters object you pass to it.
If there is no '\%s' in the command string (and the string is not empty), it is
Unlike all other functions of this class, there is no error return for this
function.
+
projects / wxWidgets.git / blobdiff