// Generated by gmmproc 2.54.1 -- DO NOT MODIFY!
#ifndef _GIOMM_SEEKABLE_H
#define _GIOMM_SEEKABLE_H
#include <glibmm/ustring.h>
#include <sigc++/sigc++.h>
/* Copyright (C) 2007 The gtkmm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <giomm/cancellable.h>
#include <glibmm/interface.h>
#include <glibmm/iochannel.h>
#ifndef DOXYGEN_SHOULD_SKIP_THIS
typedef struct _GSeekableIface GSeekableIface;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
#ifndef DOXYGEN_SHOULD_SKIP_THIS
using GSeekable = struct _GSeekable;
using GSeekableClass = struct _GSeekableClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace Gio
{ class Seekable_Class; } // namespace Gio
#endif // DOXYGEN_SHOULD_SKIP_THIS
namespace Gio
{
/** Stream seeking interface.
* Seekable is implemented by streams (implementations of InputStream or OutputStream) that support seeking.
* To find the position of a stream, use tell(). To find
* out if a stream supports seeking, use can_seek(). To position a
* stream, use seek(). To find out if a stream supports
* truncating, use can_truncate(). To truncate a stream, use
* truncate().
*
* @ingroup Streams
*
* @newin{2,16}
*/
class Seekable : public Glib::Interface
{
#ifndef DOXYGEN_SHOULD_SKIP_THIS
public:
using CppObjectType = Seekable;
using CppClassType = Seekable_Class;
using BaseObjectType = GSeekable;
using BaseClassType = GSeekableIface;
// noncopyable
Seekable(const Seekable&) = delete;
Seekable& operator=(const Seekable&) = delete;
private:
friend class Seekable_Class;
static CppClassType seekable_class_;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
protected:
/**
* You should derive from this class to use it.
*/
Seekable();
#ifndef DOXYGEN_SHOULD_SKIP_THIS
/** Called by constructors of derived classes. Provide the result of
* the Class init() function to ensure that it is properly
* initialized.
*
* @param interface_class The Class object for the derived type.
*/
explicit Seekable(const Glib::Interface_Class& interface_class);
public:
// This is public so that C++ wrapper instances can be
// created for C instances of unwrapped types.
// For instance, if an unexpected C type implements the C interface.
explicit Seekable(GSeekable* castitem);
protected:
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
public:
Seekable(Seekable&& src) noexcept;
Seekable& operator=(Seekable&& src) noexcept;
~Seekable() noexcept override;
static void add_interface(GType gtype_implementer);
/** Get the GType for this class, for use with the underlying GObject type system.
*/
static GType get_type() G_GNUC_CONST;
#ifndef DOXYGEN_SHOULD_SKIP_THIS
static GType get_base_type() G_GNUC_CONST;
#endif
///Provides access to the underlying C GObject.
GSeekable* gobj() { return reinterpret_cast<GSeekable*>(gobject_); }
///Provides access to the underlying C GObject.
const GSeekable* gobj() const { return reinterpret_cast<GSeekable*>(gobject_); }
private:
public:
/** Tells the current position within the stream.
*
* @return The offset from the beginning of the buffer.
*/
goffset tell() const;
/** Tests if the stream supports the SeekableIface.
*
* @return <tt>true</tt> if @a seekable can be seeked. <tt>false</tt> otherwise.
*/
bool can_seek() const;
/** Seeks in the stream by the given @a offset, modified by @a type.
*
* The operation can be cancelled by
* triggering the cancellable object from another thread. If the operation
* was cancelled, a Gio::Error will be thrown with CANCELLED.
*
* @param offset A #goffset.
* @param type A SeekType.
* @param cancellable Cancellable object.
* @return <tt>true</tt> if successful. If an error
* has occurred, this function will return <tt>false</tt> and set @a error
* appropriately if present.
*
* @throws Glib::Error
*/
bool seek(goffset offset, Glib::SeekType type, const Glib::RefPtr<Cancellable>& cancellable);
/// A seek() convenience overload.
bool seek(goffset offset, Glib::SeekType type);
//TODO: Document the exception in the C API: https://bugzilla.gnome.org/show_bug.cgi?id=509990#c1
/** Tests if the length of the stream can be adjusted with
* g_seekable_truncate().
*
* @return <tt>true</tt> if the stream can be truncated, <tt>false</tt> otherwise.
*/
bool can_truncate() const;
/** Truncates a stream with a given #offset.
*
* The operation can be cancelled by
* triggering the cancellable object from another thread. If the operation
* was cancelled, a Gio::Error will be thrown with CANCELLED. If an
* operation was partially finished when the operation was cancelled the
* partial result will be returned, without an error.
*
* @param offset A #goffset.
* @param cancellable Cancellable object.
* @return <tt>true</tt> if successful. If an error
* has occurred, this function will return <tt>false</tt> and set @a error
* appropriately if present.
*
* @throws Glib::Error
*/
bool truncate(goffset offset, const Glib::RefPtr<Cancellable>& cancellable);
/// A truncate() convenience overload.
bool truncate(goffset offset);
//TODO: Document the exception in the C API: https://bugzilla.gnome.org/show_bug.cgi?id=509990#c1
//_WRAP_VFUNC(goffset tell() const, tell)
//_WRAP_VFUNC(goffset can_seek() const, can_seek)
//_WRAP_VFUNC(goffset seek(goffset offset, Glib::SeekType type, const Glib::RefPtr<Cancellable>& cancellable, GError** error), seek)
//_WRAP_VFUNC(goffset can_truncate() const, can_truncate)
//Renamed to truncate() - we don't know why it's called truncate_fn in C.
//_WRAP_VFUNC(goffset truncate(goffset offset, const Glib::RefPtr<Cancellable>& cancellable, GError** error), truncate_fn)
//There are no properties or signals.
public:
public:
//C++ methods used to invoke GTK+ virtual functions:
protected:
//GTK+ Virtual Functions (override these to change behaviour):
//Default Signal Handlers::
};
} // namespace Gio
namespace Glib
{
/** A Glib::wrap() method for this object.
*
* @param object The C instance.
* @param take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
* @result A C++ instance that wraps this C instance.
*
* @relates Gio::Seekable
*/
Glib::RefPtr<Gio::Seekable> wrap(GSeekable* object, bool take_copy = false);
} // namespace Glib
#endif /* _GIOMM_SEEKABLE_H */