path: root/libs/gtkmm2/gtk/gtkmm/range.h

// -*- c++ -*-
// Generated by gtkmmproc -- DO NOT MODIFY!
#ifndef _GTKMM_RANGE_H
#define _GTKMM_RANGE_H

#include <glibmm.h>

/* $Id$ */

/* Copyright (C) 1998-2002 The gtkmm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <gtkmm/widget.h>


#ifndef DOXYGEN_SHOULD_SKIP_THIS
typedef struct _GtkRange GtkRange;
typedef struct _GtkRangeClass GtkRangeClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */


namespace Gtk
{ class Range_Class; } // namespace Gtk
namespace Gtk
{

class Adjustment;

/** Base class for widgets which visualize an adjustment.
 *
 * @ingroup Widgets
 */

class Range : public Widget
{
  public:
#ifndef DOXYGEN_SHOULD_SKIP_THIS
  typedef Range CppObjectType;
  typedef Range_Class CppClassType;
  typedef GtkRange BaseObjectType;
  typedef GtkRangeClass BaseClassType;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

  virtual ~Range();

#ifndef DOXYGEN_SHOULD_SKIP_THIS

private:
  friend class Range_Class;
  static CppClassType range_class_;

  // noncopyable
  Range(const Range&);
  Range& operator=(const Range&);

protected:
  explicit Range(const Glib::ConstructParams& construct_params);
  explicit Range(GtkRange* castitem);

#endif /* DOXYGEN_SHOULD_SKIP_THIS */

public:
#ifndef DOXYGEN_SHOULD_SKIP_THIS
  static GType get_type()      G_GNUC_CONST;
  static GType get_base_type() G_GNUC_CONST;
#endif

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

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


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

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

  //Default Signal Handlers::
  virtual void on_value_changed();
  virtual void on_adjust_bounds(double new_value);
  virtual void on_move_slider(ScrollType scroll);


private:

protected:
  Range();
public:
  

  /** Sets the update policy for the range. Gtk::UPDATE_CONTINUOUS means that
   * anytime the range slider is moved, the range value will change and the
   * value_changed signal will be emitted. Gtk::UPDATE_DELAYED means that
   * the value will be updated after a brief timeout where no slider motion
   * occurs, so updates are spaced by a short time rather than
   * continuous. Gtk::UPDATE_DISCONTINUOUS means that the value will only
   * be updated when the user releases the button and ends the slider
   * drag operation.
   * @param policy Update policy.
   */
  void set_update_policy(UpdateType policy);
  
  /** Gets the update policy of @a range . See set_update_policy().
   * @return The current update policy.
   */
  UpdateType get_update_policy() const;
  
  /** Sets the adjustment to be used as the "model" object for this range
   * widget. The adjustment indicates the current range value, the
   * minimum and maximum range values, the step/page increments used
   * for keybindings and scrolling, and the page size. The page size
   * is normally 0 for Gtk::Scale and nonzero for Gtk::Scrollbar, and
   * indicates the size of the visible area of the widget being scrolled.
   * The page size affects the size of the scrollbar slider.
   * @param adjustment A Gtk::Adjustment.
   */
  void set_adjustment(Gtk::Adjustment& adjustment);
  void unset_adjustment();

  
  /** Get the Gtk::Adjustment which is the "model" object for Gtk::Range.
   * See set_adjustment() for details.
   * The return value does not have a reference added, so should not
   * be unreferenced.
   * @return A Gtk::Adjustment.
   */
  Gtk::Adjustment* get_adjustment();
  
  /** Get the Gtk::Adjustment which is the "model" object for Gtk::Range.
   * See set_adjustment() for details.
   * The return value does not have a reference added, so should not
   * be unreferenced.
   * @return A Gtk::Adjustment.
   */
  const Gtk::Adjustment* get_adjustment() const;
  
  /** Ranges normally move from lower to higher values as the
   * slider moves from top to bottom or left to right. Inverted
   * ranges have higher values at the top or on the right rather than
   * on the bottom or left.
   * @param setting <tt>true</tt> to invert the range.
   */
  void set_inverted(bool setting = true);
  
  /** Gets the value set by set_inverted().
   * @return <tt>true</tt> if the range is inverted.
   */
  bool get_inverted() const;
  
  /** Sets the step and page sizes for the range.
   * The step size is used when the user clicks the Gtk::Scrollbar
   * arrows or moves Gtk::Scale via arrow keys. The page size
   * is used for example when moving via Page Up or Page Down keys.
   * @param step Step size.
   * @param page Page size.
   */
  void set_increments(double step, double  page);
  
  /** Sets the allowable values in the Gtk::Range, and clamps the range
   * value to be between @a min  and @a max . (If the range has a non-zero
   * page size, it is clamped between @a min  and @a max  - page-size.)
   * @param min Minimum range value.
   * @param max Maximum range value.
   */
  void set_range(double min, double max);
  
  /** Sets the current value of the range; if the value is outside the
   * minimum or maximum range values, it will be clamped to fit inside
   * them. The range emits the "value_changed" signal if the value
   * changes.
   * @param value New value of the range.
   */
  void set_value(double value);
  
  /** Gets the current value of the range.
   * @return Current value of the range.
   */
  double get_value() const;

  
  Glib::SignalProxy0< void > signal_value_changed();

  
  Glib::SignalProxy1< void,double > signal_adjust_bounds();

  
  Glib::SignalProxy1< void,ScrollType > signal_move_slider();

  
  //We use no_default_handler for this, because we can not add a new vfunc to 2.5 without breaking ABI.
  //TODO: Remove no_default_handler when we do an ABI-break-with-parallel-install.
  

  Glib::SignalProxy2< bool,ScrollType,double > signal_change_value();


  /** How the range should be updated on the screen.
   *
   * You rarely need to use properties because there are get_ and set_ methods for almost all of them.
   * @return A PropertyProxy that allows you to get or set the property of the value, or receive notification when
   * the value of the property changes.
   */
  Glib::PropertyProxy<UpdateType> property_update_policy() ;

/** How the range should be updated on the screen.
   *
   * You rarely need to use properties because there are get_ and set_ methods for almost all of them.
   * @return A PropertyProxy that allows you to get or set the property of the value, or receive notification when
   * the value of the property changes.
   */
  Glib::PropertyProxy_ReadOnly<UpdateType> property_update_policy() const;

  /** The GtkAdjustment that contains the current value of this range object.
   *
   * You rarely need to use properties because there are get_ and set_ methods for almost all of them.
   * @return A PropertyProxy that allows you to get or set the property of the value, or receive notification when
   * the value of the property changes.
   */
  Glib::PropertyProxy<Adjustment*> property_adjustment() ;

/** The GtkAdjustment that contains the current value of this range object.
   *
   * You rarely need to use properties because there are get_ and set_ methods for almost all of them.
   * @return A PropertyProxy that allows you to get or set the property of the value, or receive notification when
   * the value of the property changes.
   */
  Glib::PropertyProxy_ReadOnly<Adjustment*> property_adjustment() const;

  /** Invert direction slider moves to increase range value.
   *
   * You rarely need to use properties because there are get_ and set_ methods for almost all of them.
   * @return A PropertyProxy that allows you to get or set the property of the value, or receive notification when
   * the value of the property changes.
   */
  Glib::PropertyProxy<bool> property_inverted() ;

/** Invert direction slider moves to increase range value.
   *
   * You rarely need to use properties because there are get_ and set_ methods for almost all of them.
   * @return A PropertyProxy that allows you to get or set the property of the value, or receive notification when
   * the value of the property changes.
   */
  Glib::PropertyProxy_ReadOnly<bool> property_inverted() const;

  
protected:
    virtual void get_range_border_vfunc(GtkBorder* border) const;


};

} // namespace Gtk


namespace Glib
{
  /** @relates Gtk::Range
   * @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.
   */
  Gtk::Range* wrap(GtkRange* object, bool take_copy = false);
}
#endif /* _GTKMM_RANGE_H */