// Generated by gmmproc 2.78.0 -- DO NOT MODIFY!
#ifndef _GDKMM_DRAGSURFACE_H
#define _GDKMM_DRAGSURFACE_H

#include <gdkmmconfig.h>


#include <glibmm/ustring.h>
#include <sigc++/sigc++.h>

/* Copyright (C) 2020 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 <glibmm/interface.h>
#include <gdkmm/dragsurfacesize.h>


#ifndef DOXYGEN_SHOULD_SKIP_THIS
extern "C"
{
typedef struct _GdkDragSurfaceInterface GdkDragSurfaceInterface;
}
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

#ifndef DOXYGEN_SHOULD_SKIP_THIS
using GdkDragSurface = struct _GdkDragSurface;
using GdkDragSurfaceClass = struct _GdkDragSurfaceClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */


#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace Gdk
{ class GDKMM_API DragSurface_Class; } // namespace Gdk
#endif // DOXYGEN_SHOULD_SKIP_THIS

namespace Gdk
{

/** Interface for drag surface surfaces.
 *
 * A %Gdk::DragSurface is a surface that is used during a DnD operation.
 *
 * @newin{3,98}
 */

class GDKMM_API DragSurface : public Glib::Interface
{
  
#ifndef DOXYGEN_SHOULD_SKIP_THIS

public:
  using CppObjectType = DragSurface;
  using CppClassType = DragSurface_Class;
  using BaseObjectType = GdkDragSurface;
  using BaseClassType = GdkDragSurfaceInterface;

  // noncopyable
  DragSurface(const DragSurface&) = delete;
  DragSurface& operator=(const DragSurface&) = delete;

private:
  friend class DragSurface_Class;
  static CppClassType dragsurface_class_;

#endif /* DOXYGEN_SHOULD_SKIP_THIS */
protected:
  /**
   * You should derive from this class to use it.
   */
  DragSurface();

#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 DragSurface(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 DragSurface(GdkDragSurface* castitem);

protected:
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

public:

  DragSurface(DragSurface&& src) noexcept;
  DragSurface& operator=(DragSurface&& src) noexcept;

  ~DragSurface() 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.
  GdkDragSurface*       gobj()       { return reinterpret_cast<GdkDragSurface*>(gobject_); }

  ///Provides access to the underlying C GObject.
  const GdkDragSurface* gobj() const { return reinterpret_cast<GdkDragSurface*>(gobject_); }

private:


public:
  
  /** Present @a drag_surface.
   * 
   * @param width The unconstrained drag_surface width to layout.
   * @param height The unconstrained drag_surface height to layout.
   * @return <tt>false</tt> if it failed to be presented, otherwise <tt>true</tt>.
   */
  bool present(int width, int height);

  
  /**
   * @par Slot Prototype:
   * <tt>void on_my_%compute_size(DragSurfaceSize& size)</tt>
   *
   * Flags: Run Last
   *
   * Emitted when the size for the surface needs to be computed, when it is
   * present.
   * 
   * This signal will normally be emitted during the native surface layout
   * cycle when the surface size needs to be recomputed.
   * 
   * It is the responsibility of the drag surface user to handle this signal
   * and compute the desired size of the surface, storing the computed size
   * in the Gdk::DragSurfaceSize object that is passed to the signal
   * handler, using Gdk::DragSurfaceSize::set_size().
   * 
   * Failing to set a size so will result in an arbitrary size being used as
   * a result.
   * 
   * @newin{4,12}
   * 
   * @param size The size of the drag surface.
   */

  Glib::SignalProxy<void(DragSurfaceSize&)> signal_compute_size();


  // There are no properties or public vfuncs.


public:

public:
  //C++ methods used to invoke GTK+ virtual functions:

protected:
  //GTK+ Virtual Functions (override these to change behaviour):

  //Default Signal Handlers::


};

} // namespace Gdk


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 Gdk::DragSurface
   */
  GDKMM_API
  Glib::RefPtr<Gdk::DragSurface> wrap(GdkDragSurface* object, bool take_copy = false);

} // namespace Glib


#endif /* _GDKMM_DRAGSURFACE_H */

