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Gtk::FileFilter Class Reference

Inheritance diagram for Gtk::FileFilter:

List of all members.


Detailed Description

A filter for selecting a file subset.

A Gtk::FileFilter can be used to restrict the files being shown in a Gtk::FileChooser. Files can be filtered based on their name (with add_pattern()), on their mime type (with add_mime_type()), or by a custom filter function (with add_custom()).

Filtering by mime types handles aliasing and subclassing of mime types; e.g. a filter for text/plain also matches a file with mime type application/rtf, since application/rtf is a subclass of text/plain. Note that Gtk::FileFilter allows wildcards for the subtype of a mime type, so you can e.g. filter for image/*.

Normally, filters are used by adding them to a Gtk::FileChooser. See Gtk::FileChooser::add_filter(). But it is also possible to manually use a filter on a file with filter().

Public Types

typedef sigc::slot< bool,
const Info& > 
SlotCustom
 For instance, bool on_custom(const Gtk::FileFilter::Info& filter_info);.

Public Member Functions

void add_custom (FileFilterFlags needed, const SlotCustom& slot)
void add_mime_type (const Glib::ustring& mime_type)
 Adds a rule allowing a given mime type to filter.
void add_pattern (const Glib::ustring& pattern)
 Adds a rule allowing a shell style glob to a filter.
void add_pixbuf_formats ()
 Adds a rule allowing image files in the formats supported by GdkPixbuf.
 FileFilter ()
Glib::ustring get_name () const
 Gets the human-readable name for the filter.
FileFilterFlags get_needed () const
 Gets the fields that need to be filled in for the structure passed to gtk_file_filter_filter().
const GtkFileFilter* gobj () const
 Provides access to the underlying C GtkObject.
GtkFileFilter* gobj ()
 Provides access to the underlying C GtkObject.
void set_name (const Glib::ustring& name)
 Sets the human-readable name of the filter; this is the string that will be displayed in the file selector user interface if there is a selectable list of filters.
virtual ~FileFilter ()

Related Functions

(Note that these are not member functions.)

Gtk::FileFilterwrap (GtkFileFilter* object, bool take_copy=false)
 A Glib::wrap() method for this object.

Classes

class  Info


Member Typedef Documentation

typedef sigc::slot<bool, const Info&> Gtk::FileFilter::SlotCustom

For instance, bool on_custom(const Gtk::FileFilter::Info& filter_info);.


Constructor & Destructor Documentation

virtual Gtk::FileFilter::~FileFilter (  )  [virtual]

Gtk::FileFilter::FileFilter (  ) 


Member Function Documentation

void Gtk::FileFilter::add_custom ( FileFilterFlags  needed,
const SlotCustom slot 
)

void Gtk::FileFilter::add_mime_type ( const Glib::ustring mime_type  ) 

Adds a rule allowing a given mime type to filter.

Since gtkmm 2.4:
Parameters:
mime_type Name of a MIME type.

void Gtk::FileFilter::add_pattern ( const Glib::ustring pattern  ) 

Adds a rule allowing a shell style glob to a filter.

Since gtkmm 2.4:
Parameters:
pattern A shell style glob.

void Gtk::FileFilter::add_pixbuf_formats (  ) 

Adds a rule allowing image files in the formats supported by GdkPixbuf.

Since gtkmm 2.6:

Glib::ustring Gtk::FileFilter::get_name (  )  const

Gets the human-readable name for the filter.

See gtk_file_filter_set_name().

Returns:
The human-readable name of the filter, or 0. This value is owned by GTK+ and must not be modified or freed.
Since gtkmm 2.4:

FileFilterFlags Gtk::FileFilter::get_needed (  )  const

Gets the fields that need to be filled in for the structure passed to gtk_file_filter_filter().

This function will not typically be used by applications; it is intended principally for use in the implementation of Gtk::FileChooser.

Returns:
Bitfield of flags indicating needed fields when calling gtk_file_filter_filter()
Since gtkmm 2.4:

const GtkFileFilter* Gtk::FileFilter::gobj (  )  const [inline]

Provides access to the underlying C GtkObject.

Reimplemented from Gtk::Object.

References Glib::ValueBase::gobject_.

GtkFileFilter* Gtk::FileFilter::gobj (  )  [inline]

Provides access to the underlying C GtkObject.

Reimplemented from Gtk::Object.

References Glib::ValueBase::gobject_.

void Gtk::FileFilter::set_name ( const Glib::ustring name  ) 

Sets the human-readable name of the filter; this is the string that will be displayed in the file selector user interface if there is a selectable list of filters.

Since gtkmm 2.4:
Parameters:
name The human-readable-name for the filter, or 0 to remove any existing name.


Friends And Related Function Documentation

Gtk::FileFilter* wrap ( GtkFileFilter *  object,
bool  take_copy = false 
) [related]

A Glib::wrap() method for this object.

Parameters:
object The C instance.
take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
Returns:
A C++ instance that wraps this C instance.


The documentation for this class was generated from the following file:

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