rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 71 insertions, 0 deletions

diff --git a/libs/gtkmm2ext/gtkmm2ext/auto_spin.h b/libs/gtkmm2ext/gtkmm2ext/auto_spin.h
new file mode 100644
index 0000000000..b692a7ccdc
--- /dev/null
+++ b/libs/gtkmm2ext/gtkmm2ext/auto_spin.h
@@ -0,0 +1,71 @@
+/*
+    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__
+
+#include <gtkmm.h>
+
+namespace Gtkmm2ext {
+
+class 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__ */