libgtkmm-3.0-dev 3.22.0-1 / usr / include / gtkmm-3.0 / gtkmm / progressbar.h

// Generated by gmmproc 2.50.0 -- DO NOT MODIFY!
#ifndef _GTKMM_PROGRESSBAR_H
#define _GTKMM_PROGRESSBAR_H


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

/*
 * 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 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <gtkmm/widget.h>
#include <gtkmm/orientable.h>


#ifndef DOXYGEN_SHOULD_SKIP_THIS
using GtkProgressBar = struct _GtkProgressBar;
using GtkProgressBarClass = struct _GtkProgressBarClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */


#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace Gtk
{ class ProgressBar_Class; } // namespace Gtk
#endif //DOXYGEN_SHOULD_SKIP_THIS

namespace Gtk
{


/** A widget which indicates progress visually.
 *
 * The Gtk::ProgressBar is typically used to display the progress of a long
 * running operation. It provides a visual clue that processing is underway.
 * The Gtk::ProgressBar can be used in two different modes: percentage mode
 * and activity mode.
 *
 * When an application can determine how much work needs to take place (e.g.
 * read a fixed number of bytes from a file) and can monitor its progress,
 * it can use the Gtk::ProgressBar in percentage mode and the user sees a
 * growing bar indicating the percentage of the work that has been
 * completed. In this mode, the application is required to call
 * set_fraction() periodically to update the progress bar.
 *
 * When an application has no accurate way of knowing the amount of work to
 * do, it can use the Gtk::ProgressBar in activity mode, which shows
 * activity by a block moving back and forth within the progress area. In
 * this mode, the application is required to call pulse() perodically to
 * update the progress bar.
 *
 * There is quite a bit of flexibility provided to control the appearance of
 * the Gtk::ProgressBar. Functions are provided to control the orientation of
 * the bar, optional text can be displayed along with the bar, and the step
 * size used in activity mode can be set.
 *
 * The ProgressBar widget looks like this:
 * @image html progressbar1.png
 *
 * @ingroup Widgets
 */

class ProgressBar
 : public Widget,
   public Orientable
{
  public:
#ifndef DOXYGEN_SHOULD_SKIP_THIS
  typedef ProgressBar CppObjectType;
  typedef ProgressBar_Class CppClassType;
  typedef GtkProgressBar BaseObjectType;
  typedef GtkProgressBarClass BaseClassType;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

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

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

  ~ProgressBar() noexcept override;

#ifndef DOXYGEN_SHOULD_SKIP_THIS

private:
  friend class ProgressBar_Class;
  static CppClassType progressbar_class_;

protected:
  explicit ProgressBar(const Glib::ConstructParams& construct_params);
  explicit ProgressBar(GtkProgressBar* castitem);

#endif /* DOXYGEN_SHOULD_SKIP_THIS */

public:

  /** 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 GtkObject.
  GtkProgressBar*       gobj()       { return reinterpret_cast<GtkProgressBar*>(gobject_); }

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


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

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

  //Default Signal Handlers::


private:

  
public:
  ProgressBar();

  
  /** Indicates that some progress has been made, but you don’t know how much.
   * Causes the progress bar to enter “activity mode,” where a block
   * bounces back and forth. Each call to pulse()
   * causes the block to move by a little bit (the amount of movement
   * per pulse is determined by set_pulse_step()).
   */
  void pulse();

  
  /** Retrieves the text displayed superimposed on the progress bar,
   * if any.
   * 
   * @return Text.
   */
  Glib::ustring get_text() const;
  
  /** Causes the given @a text to appear next to the progress bar.
   * 
   * If @a text is <tt>nullptr</tt> and Gtk::ProgressBar::property_show_text() is <tt>true</tt>, the current
   * value of Gtk::ProgressBar::property_fraction() will be displayed as a percentage.
   * 
   * If @a text is non-<tt>nullptr</tt> and Gtk::ProgressBar::property_show_text() is <tt>true</tt>, the text
   * will be displayed. In this case, it will not display the progress
   * percentage. If @a text is the empty string, the progress bar will still
   * be styled and sized suitably for containing text, as long as
   * Gtk::ProgressBar::property_show_text() is <tt>true</tt>.
   * 
   * @param text A UTF-8 string, or <tt>nullptr</tt>.
   */
  void set_text(const Glib::ustring& text);

  
  /** Returns the current fraction of the task that’s been completed.
   * 
   * @return A fraction from 0.0 to 1.0.
   */
  double get_fraction() const;
  
  /** Causes the progress bar to “fill in” the given fraction
   * of the bar. The fraction should be between 0.0 and 1.0,
   * inclusive.
   * 
   * @param fraction Fraction of the task that’s been completed.
   */
  void set_fraction(double fraction);

  
  /** Retrieves the pulse step set with set_pulse_step().
   * 
   * @return A fraction from 0.0 to 1.0.
   */
  double get_pulse_step() const;
  
  /** Sets the fraction of total progress bar length to move the
   * bouncing block for each call to pulse().
   * 
   * @param fraction Fraction between 0.0 and 1.0.
   */
  void set_pulse_step(double fraction);

  
  /** Progress bars normally grow from top to bottom or left to right.
   * Inverted progress bars grow in the opposite direction.
   * 
   * @param inverted <tt>true</tt> to invert the progress bar.
   */
  void set_inverted(bool inverted =  true);
  
  /** Gets the value set by set_inverted().
   * 
   * @return <tt>true</tt> if the progress bar is inverted.
   */
  bool get_inverted() const;

  
  /** Sets the mode used to ellipsize (add an ellipsis: "...") the
   * text if there is not enough space to render the entire string.
   * 
   * @newin{2,6}
   * 
   * @param mode A Pango::EllipsizeMode.
   */
  void set_ellipsize(Pango::EllipsizeMode mode);
  
  /** Returns the ellipsizing position of the progress bar.
   * See set_ellipsize().
   * 
   * @newin{2,6}
   * 
   * @return Pango::EllipsizeMode.
   */
  Pango::EllipsizeMode get_ellipsize() const;

  
  /** Sets whether the progress bar will show text next to the bar.
   * The shown text is either the value of the Gtk::ProgressBar::property_text()
   * property or, if that is <tt>nullptr</tt>, the Gtk::ProgressBar::property_fraction() value,
   * as a percentage.
   * 
   * To make a progress bar that is styled and sized suitably for containing
   * text (even if the actual text is blank), set Gtk::ProgressBar::property_show_text() to
   * <tt>true</tt> and Gtk::ProgressBar::property_text() to the empty string (not <tt>nullptr</tt>).
   * 
   * @newin{3,0}
   * 
   * @param show_text Whether to show superimposed text.
   */
  void set_show_text(bool show_text =  true);
  
  /** Gets the value of the Gtk::ProgressBar::property_show_text() property.
   * See set_show_text().
   * 
   * @newin{3,0}
   * 
   * @return <tt>true</tt> if text is shown in the progress bar.
   */
  bool get_show_text() const;

  /** The fraction of total work that has been completed.
   *
   * @return A PropertyProxy that allows you to get or set the value of the property,
   * or receive notification when the value of the property changes.
   */
  Glib::PropertyProxy< double > property_fraction() ;

/** The fraction of total work that has been completed.
   *
   * @return 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< double > property_fraction() const;

  /** The fraction of total progress to move the bouncing block when pulsed.
   *
   * @return A PropertyProxy that allows you to get or set the value of the property,
   * or receive notification when the value of the property changes.
   */
  Glib::PropertyProxy< double > property_pulse_step() ;

/** The fraction of total progress to move the bouncing block when pulsed.
   *
   * @return 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< double > property_pulse_step() const;

  /** Text to be displayed in the progress bar.
   *
   * @return A PropertyProxy that allows you to get or set the value of the property,
   * or receive notification when the value of the property changes.
   */
  Glib::PropertyProxy< Glib::ustring > property_text() ;

/** Text to be displayed in the progress bar.
   *
   * @return 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< Glib::ustring > property_text() const;

  /** The preferred place to ellipsize the string, if the progress bar does
   * not have enough room to display the entire string, specified as a
   * Pango::EllipsizeMode.
   * 
   * Note that setting this property to a value other than
   * Pango::ELLIPSIZE_NONE has the side-effect that the progress bar requests
   * only enough space to display the ellipsis ("..."). Another means to set a
   * progress bar's width is Gtk::Widget::set_size_request().
   * 
   * @newin{2,6}
   *
   * @return A PropertyProxy that allows you to get or set the value of the property,
   * or receive notification when the value of the property changes.
   */
  Glib::PropertyProxy< bool > property_ellipsize() ;

/** The preferred place to ellipsize the string, if the progress bar does
   * not have enough room to display the entire string, specified as a
   * Pango::EllipsizeMode.
   * 
   * Note that setting this property to a value other than
   * Pango::ELLIPSIZE_NONE has the side-effect that the progress bar requests
   * only enough space to display the ellipsis ("..."). Another means to set a
   * progress bar's width is Gtk::Widget::set_size_request().
   * 
   * @newin{2,6}
   *
   * @return 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 > property_ellipsize() const;

  /** Sets whether the progress bar will show a text in addition
   * to the bar itself. The shown text is either the value of
   * the Gtk::ProgressBar::property_text() property or, if that is <tt>nullptr</tt>,
   * the Gtk::ProgressBar::property_fraction() value, as a percentage.
   * 
   * To make a progress bar that is styled and sized suitably for
   * showing text (even if the actual text is blank), set
   * Gtk::ProgressBar::property_show_text() to <tt>true</tt> and Gtk::ProgressBar::property_text()
   * to the empty string (not <tt>nullptr</tt>).
   * 
   * @newin{3,0}
   *
   * @return A PropertyProxy that allows you to get or set the value of the property,
   * or receive notification when the value of the property changes.
   */
  Glib::PropertyProxy< bool > property_show_text() ;

/** Sets whether the progress bar will show a text in addition
   * to the bar itself. The shown text is either the value of
   * the Gtk::ProgressBar::property_text() property or, if that is <tt>nullptr</tt>,
   * the Gtk::ProgressBar::property_fraction() value, as a percentage.
   * 
   * To make a progress bar that is styled and sized suitably for
   * showing text (even if the actual text is blank), set
   * Gtk::ProgressBar::property_show_text() to <tt>true</tt> and Gtk::ProgressBar::property_text()
   * to the empty string (not <tt>nullptr</tt>).
   * 
   * @newin{3,0}
   *
   * @return 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 > property_show_text() const;

  /** Invert the direction in which the progress bar grows.
   *
   * @return A PropertyProxy that allows you to get or set the value of the property,
   * or receive notification when the value of the property changes.
   */
  Glib::PropertyProxy< bool > property_inverted() ;

/** Invert the direction in which the progress bar grows.
   *
   * @return 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 > property_inverted() const;


};

} // namespace Gtk


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 Gtk::ProgressBar
   */
  Gtk::ProgressBar* wrap(GtkProgressBar* object, bool take_copy = false);
} //namespace Glib


#endif /* _GTKMM_PROGRESSBAR_H */