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/*
Copyright (C) 2000 Paul Barton-Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __gtkmm2ext_auto_spin_h__
#define __gtkmm2ext_auto_spin_h__
#ifdef interface
#undef interface
#endif
#include <gtkmm.h>
#include "gtkmm2ext/visibility.h"
namespace Gtkmm2ext {
class LIBGTKMM2EXT_API AutoSpin
{
public:
AutoSpin (Gtk::Adjustment &adj, gfloat cr = 0, bool round_to_steps_yn = false);
Gtk::Adjustment &get_adjustment() { return adjustment; }
void use_left_as_decrement (bool yn) { left_is_decrement = yn; }
void set_wrap (bool yn) { wrap = yn; }
void set_climb_rate (gfloat cr) { climb_rate = cr; }
void set_bounds (gfloat initial, gfloat low, gfloat high,
bool with_reset = true);
gint button_press (GdkEventButton *);
gint stop_spinning (GdkEventButton *ignored_but_here_for_clicked);
void start_spinning (bool decrementing, bool use_page);
private:
Gtk::Adjustment &adjustment;
gfloat climb_rate;
gfloat timer_increment;
gfloat initial;
unsigned int timer_calls;
bool have_timer;
bool need_timer;
bool wrap;
gint timeout_tag;
bool left_is_decrement;
bool round_to_steps;
static const unsigned int initial_timer_interval;
static const unsigned int timer_interval;
static const unsigned int climb_timer_calls;
void stop_timer ();
static gint _timer (void *arg);
gint timer ();
bool adjust_value (gfloat increment);
void set_value (gfloat value);
};
} /* namespace */
#endif /* __gtkmm2ext_auto_spin_h__ */
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