Gio::FilterOutputStream Class Reference
Stream Classes

Filter Output Stream. More...

`#include <giomm/filteroutputstream.h>`

Inheritance diagram for Gio::FilterOutputStream:
[legend]

## Public Member Functions

| FilterOutputStream (FilterOutputStream&& src) noexcept
FilterOutputStream& | operator= (FilterOutputStream&& src) noexcept
| ~FilterOutputStream () noexcept override
GFilterOutputStream* | gobj ()
| Provides access to the underlying C GObject. More...
const GFilterOutputStream* | gobj () const
| Provides access to the underlying C GObject. More...
GFilterOutputStream* | gobj_copy ()
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
Glib::RefPtr< OutputStream > | get_base_stream ()
| Gets the base stream for the filter stream. More...
Glib::RefPtr< const OutputStream > | get_base_stream () const
| Gets the base stream for the filter stream. More...
bool | get_close_base_stream () const
| Returns whether the base stream will be closed when stream is closed. More...
void | set_close_base_stream (bool close_base=true)
| Sets whether the base stream will be closed when stream is closed. More...
Glib::PropertyProxy_ReadOnly< Glib::RefPtr< OutputStream > > | property_base_stream () const
| The underlying base stream on which the io ops will be done. More...
Glib::PropertyProxy_ReadOnly< bool > | property_close_base_stream () const
| If the base stream should be closed when the filter stream is closed. More...
Public Member Functions inherited from Gio::OutputStream
| OutputStream (OutputStream&& src) noexcept
OutputStream& | operator= (OutputStream&& src) noexcept
| ~OutputStream () noexcept override
GOutputStream* | gobj ()
| Provides access to the underlying C GObject. More...
const GOutputStream* | gobj () const
| Provides access to the underlying C GObject. More...
GOutputStream* | gobj_copy ()
| Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
gssize | write (const void* buffer, gsize count, const Glib::RefPtr< Cancellable >& cancellable)
| Tries to write count bytes from buffer into the stream. More...
gssize | write (const void* buffer, gsize count)
| A write() convenience overload. More...
gssize | write (const std::string& buffer, const Glib::RefPtr< Cancellable >& cancellable)
| Tries to write count bytes from buffer into the stream. More...
gssize | write (const std::string& buffer)
| Tries to write count bytes from buffer into the stream. More...
bool | write_all (const void* buffer, gsize count, gsize& bytes_written, const Glib::RefPtr< Cancellable >& cancellable)
| Tries to write count bytes from buffer into the stream. More...
bool | write_all (const void* buffer, gsize count, gsize& bytes_written)
| A write_all() convenience overload. More...
bool | write_all (const std::string& buffer, gsize& bytes_written, const Glib::RefPtr< Cancellable >& cancellable)
| Tries to write count bytes from buffer into the stream. More...
bool | write_all (const std::string& buffer, gsize& bytes_written)
| Tries to write count bytes from buffer into the stream. More...
gssize | write_bytes (const Glib::RefPtr< const Glib::Bytes >& bytes, const Glib::RefPtr< Cancellable >& cancellable)
| A wrapper function for g_output_stream_write() which takes a Bytes as input. More...
gssize | write_bytes (const Glib::RefPtr< const Glib::Bytes >& bytes)
| A write_bytes() convenience overload. More...
void | write_bytes_async (const Glib::RefPtr< const Glib::Bytes >& bytes, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous write of the data in bytes to the stream. More...
void | write_bytes_async (const Glib::RefPtr< const Glib::Bytes >& bytes, const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous write of the data in bytes to the stream. More...
gssize | write_bytes_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes a stream write-from-Bytes operation. More...
gssize | splice (const Glib::RefPtr< InputStream >& source, const Glib::RefPtr< Cancellable >& cancellable, OutputStreamSpliceFlags flags=OUTPUT_STREAM_SPLICE_NONE)
| Splices an input stream into an output stream. More...
gssize | splice (const Glib::RefPtr< InputStream >& source, OutputStreamSpliceFlags flags=OUTPUT_STREAM_SPLICE_NONE)
| Splices an input stream into an output stream. More...
bool | flush (const Glib::RefPtr< Cancellable >& cancellable)
| Flushed any outstanding buffers in the stream. More...
bool | flush ()
| A flush() convenience overload. More...
bool | close (const Glib::RefPtr< Cancellable >& cancellable)
| Closes the stream, releasing resources related to it. More...
bool | close ()
| A close() convenience overload. More...
void | write_async (const void* buffer, gsize count, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous write of count bytes from buffer into the stream. More...
void | write_async (const void* buffer, gsize count, const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous write of count bytes from buffer into the stream. More...
gssize | write_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes a stream write operation. More...
void | write_all_async (const void* buffer, gsize count, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous write of count bytes from buffer into the stream. More...
void | write_all_async (const void* buffer, gsize count, const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
| Request an asynchronous write of count bytes from buffer into the stream. More...
bool | write_all_finish (const Glib::RefPtr< AsyncResult >& result, gsize& bytes_written)
| Finishes an asynchronous stream write operation started with g_output_stream_write_all_async(). More...
void | splice_async (const Glib::RefPtr< InputStream >& source, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, OutputStreamSpliceFlags flags=OUTPUT_STREAM_SPLICE_NONE, int io_priority=Glib::PRIORITY_DEFAULT)
| Splices a stream asynchronously. More...
void | splice_async (const Glib::RefPtr< InputStream >& source, const SlotAsyncReady& slot, OutputStreamSpliceFlags flags=OUTPUT_STREAM_SPLICE_NONE, int io_priority=Glib::PRIORITY_DEFAULT)
| Splices a stream asynchronously. More...
gssize | splice_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes an asynchronous stream splice operation. More...
void | flush_async (const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
| Flushes a stream asynchronously. More...
void | flush_async (const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
| Flushes a stream asynchronously. More...
bool | flush_finish (const Glib::RefPtr< AsyncResult >& result)
| Finishes flushing an output stream. More...
void | close_async (const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
| Requests an asynchronous close of the stream, releasing resources related to it. More...
void | close_async (const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
| Requests an asynchronous close of the stream, releasing resources related to it. More...
bool | close_finish (const Glib::RefPtr< AsyncResult >& result)
| Closes an output stream. More...
bool | is_closed () const
| Checks if an output stream has already been closed. More...
bool | is_closing () const
| Checks if an output stream is being closed. More...
bool | has_pending () const
| Checks if an output stream has pending actions. More...
Public Member Functions inherited from Glib::Object
| Object (const Object&)=delete
Object& | operator= (const Object&)=delete
| Object (Object&& src) noexcept
Object& | operator= (Object&& src) noexcept
void* | get_data (const QueryQuark& key)
void | set_data (const Quark& key, void* data)
void | set_data (const Quark& key, void* data, DestroyNotify notify)
void | remove_data (const QueryQuark& quark)
void* | steal_data (const QueryQuark& quark)
Public Member Functions inherited from Glib::ObjectBase
| ObjectBase (const ObjectBase&)=delete
ObjectBase& | operator= (const ObjectBase&)=delete
void | set_property_value (const Glib::ustring& property_name, const Glib::ValueBase& value)
| You probably want to use a specific property_*() accessor method instead. More...
void | get_property_value (const Glib::ustring& property_name, Glib::ValueBase& value) const
| You probably want to use a specific property_*() accessor method instead. More...
template<class PropertyType >
void | set_property (const Glib::ustring& property_name, const PropertyType& value)
| You probably want to use a specific property_*() accessor method instead. More...
template<class PropertyType >
void | get_property (const Glib::ustring& property_name, PropertyType& value) const
| You probably want to use a specific property_*() accessor method instead. More...
void | connect_property_changed (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
void | connect_property_changed (const Glib::ustring& property_name, sigc::slot< void >&& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, const sigc::slot< void >& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
sigc::connection | connect_property_changed_with_return (const Glib::ustring& property_name, sigc::slot< void >&& slot)
| You can use the signal_changed() signal of the property proxy instead. More...
void | freeze_notify ()
| Increases the freeze count on object. More...
void | thaw_notify ()
| Reverts the effect of a previous call to freeze_notify(). More...
virtual void | reference () const
| Increment the reference count for this object. More...
virtual void | unreference () const
| Decrement the reference count for this object. More...
GObject* | gobj ()
| Provides access to the underlying C GObject. More...
const GObject* | gobj () const
| Provides access to the underlying C GObject. More...
GObject* | gobj_copy () const
| Give a ref-ed copy to someone. Use for direct struct access. More...
Public Member Functions inherited from sigc::trackable
| trackable () noexcept
| trackable (const trackable &src) noexcept
| trackable (trackable &&src)
| ~trackable ()
void | add_destroy_notify_callback (void *data, func_destroy_notify func) const
void | notify_callbacks ()
trackable & | operator= (const trackable &src)
trackable & | operator= (trackable &&src)
void | remove_destroy_notify_callback (void *data) const

## Static Public Member Functions

static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...
Static Public Member Functions inherited from Gio::OutputStream
static GType | get_type ()
| Get the GType for this class, for use with the underlying GObject type system. More...

## Protected Member Functions

| FilterOutputStream (const Glib::RefPtr< OutputStream >& base_stream)
Protected Member Functions inherited from Gio::OutputStream
| OutputStream ()
bool | set_pending ()
| Sets stream to have actions pending. More...
void | clear_pending ()
| Clears the pending flag on stream. More...
Protected Member Functions inherited from Glib::Object
| Object ()
| Object (const Glib::ConstructParams& construct_params)
| Object (GObject* castitem)
| ~Object () noexcept override
Protected Member Functions inherited from Glib::ObjectBase
| ObjectBase ()
| This default constructor is called implicitly from the constructor of user-derived classes, even if, for instance, Gtk::Button calls a different ObjectBase constructor. More...
| ObjectBase (const char* custom_type_name)
| A derived constructor always overrides this choice. More...
| ObjectBase (const std::type_info& custom_type_info)
| This constructor is a special feature to allow creation of derived types on the fly, without having to use g_object_new() manually. More...
| ObjectBase (ObjectBase&& src) noexcept
ObjectBase& | operator= (ObjectBase&& src) noexcept
virtual | ~ObjectBase () noexcept=0
void | initialize (GObject* castitem)
void | initialize_move (GObject* castitem, Glib::ObjectBase* previous_wrapper)

## Related Functions

(Note that these are not member functions.)
Glib::RefPtr< Gio::FilterOutputStream > | wrap (GFilterOutputStream* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...
Related Functions inherited from Gio::OutputStream
Glib::RefPtr< Gio::OutputStream > | wrap (GOutputStream* object, bool take_copy=false)
| A Glib::wrap() method for this object. More...
Related Functions inherited from Glib::Object
Glib::RefPtr< Glib::Object > | wrap (GObject* object, bool take_copy=false)

## Additional Inherited Members

Public Types inherited from Glib::Object
using | DestroyNotify = void(*)(gpointer data)
Public Types inherited from sigc::trackable
typedef internal::func_destroy_notify | func_destroy_notify

## Detailed Description

Filter Output Stream.

This is a base class for output stream implementations that perform some kind of filtering operation on a base stream. Typical examples of filtering operations are character set conversion, compression and byte order flipping.

Since glibmm 2.16:

## Constructor & Destructor Documentation

Gio::FilterOutputStream::FilterOutputStream | ( | FilterOutputStream&& | src | ) |

noexcept

Gio::FilterOutputStream::~FilterOutputStream | ( |  | ) |

override noexcept

Gio::FilterOutputStream::FilterOutputStream | ( | const Glib::RefPtr< OutputStream >& | base_stream | ) |

explicit protected

## Member Function Documentation

Glib::RefPtr<OutputStream> Gio::FilterOutputStream::get_base_stream | ( |  | ) |

Gets the base stream for the filter stream.

Returns
  A OutputStream.

Glib::RefPtr<const OutputStream> Gio::FilterOutputStream::get_base_stream | ( |  | ) | const

Gets the base stream for the filter stream.

Returns
  A OutputStream.

bool Gio::FilterOutputStream::get_close_base_stream | ( |  | ) | const

Returns whether the base stream will be closed when stream is closed.

Returns
  `true` if the base stream will be closed.

static GType Gio::FilterOutputStream::get_type | ( |  | ) |

static

Get the GType for this class, for use with the underlying GObject type system.

GFilterOutputStream* Gio::FilterOutputStream::gobj | ( |  | ) |

inline

Provides access to the underlying C GObject.

const GFilterOutputStream* Gio::FilterOutputStream::gobj | ( |  | ) | const

inline

Provides access to the underlying C GObject.

GFilterOutputStream* Gio::FilterOutputStream::gobj_copy | ( |  | ) |

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

FilterOutputStream& Gio::FilterOutputStream::operator= | ( | FilterOutputStream&& | src | ) |

noexcept

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<OutputStream> > Gio::FilterOutputStream::property_base_stream | ( |  | ) | const

The underlying base stream on which the io ops will be done.

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

Glib::PropertyProxy_ReadOnly< bool > Gio::FilterOutputStream::property_close_base_stream | ( |  | ) | const

If the base stream should be closed when the filter stream is closed.

Default value: `true`

Returns
  A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.

void Gio::FilterOutputStream::set_close_base_stream | ( | bool | close_base = `true` | ) |

Sets whether the base stream will be closed when stream is closed.

Parameters

  close_base | `true` to close the base stream.

## Friends And Related Function Documentation

Glib::RefPtr< Gio::FilterOutputStream > wrap | ( | GFilterOutputStream * | 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.