Move Gtkmm2ext widgets into libwidget

8 files changed, 739 insertions, 0 deletions

diff --git a/libs/widgets/widgets/ardour_fader.h b/libs/widgets/widgets/ardour_fader.h
new file mode 100644
index 0000000000..b9270cae51
--- /dev/null
+++ b/libs/widgets/widgets/ardour_fader.h
@@ -0,0 +1,158 @@
+/*
+    Copyright (C) 2006 Paul 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 _WIDGETS_ARDOUR_FADER_H_
+#define _WIDGETS_ARDOUR_FADER_H_
+
+#include <cmath>
+#include <stdint.h>
+
+#include <gdkmm.h>
+#include <gtkmm/adjustment.h>
+
+#include "gtkmm2ext/cairo_widget.h"
+#include "widgets/visibility.h"
+
+namespace ArdourWidgets {
+
+class LIBWIDGETS_API ArdourFader : public CairoWidget
+{
+public:
+	ArdourFader (Gtk::Adjustment& adjustment, int orientation, int span, int girth);
+	virtual ~ArdourFader ();
+	static void flush_pattern_cache();
+
+	sigc::signal<void> StartGesture;
+	sigc::signal<void> StopGesture;
+	sigc::signal<void> OnExpose;
+
+	void set_default_value (float);
+	void set_text (const std::string&, bool centered = true, bool expose = true);
+
+	enum Tweaks {
+		NoShowUnityLine = 0x1,
+		NoButtonForward = 0x2,
+		NoVerticalScroll = 0x4,
+	};
+
+	Tweaks tweaks() const { return _tweaks; }
+	void set_tweaks (Tweaks);
+
+protected:
+	void on_size_request (GtkRequisition*);
+	void on_size_allocate (Gtk::Allocation& alloc);
+
+	void render (Cairo::RefPtr<Cairo::Context> const&, cairo_rectangle_t*);
+	bool on_grab_broken_event (GdkEventGrabBroken*);
+	bool on_button_press_event (GdkEventButton*);
+	bool on_button_release_event (GdkEventButton*);
+	bool on_motion_notify_event (GdkEventMotion*);
+	bool on_scroll_event (GdkEventScroll* ev);
+	bool on_enter_notify_event (GdkEventCrossing* ev);
+	bool on_leave_notify_event (GdkEventCrossing* ev);
+
+	void on_state_changed (Gtk::StateType);
+	void on_style_changed (const Glib::RefPtr<Gtk::Style>&);
+
+	enum Orientation {
+		VERT,
+		HORIZ,
+	};
+
+private:
+	Glib::RefPtr<Pango::Layout> _layout;
+	std::string                 _text;
+	Tweaks                      _tweaks;
+	Gtk::Adjustment&            _adjustment;
+	int _text_width;
+	int _text_height;
+
+	int _span, _girth;
+	int _min_span, _min_girth;
+	int _orien;
+	cairo_pattern_t* _pattern;
+	bool _hovering;
+	GdkWindow* _grab_window;
+	double _grab_loc;
+	double _grab_start;
+	bool _dragging;
+	float _default_value;
+	int _unity_loc;
+	bool _centered_text;
+
+	sigc::connection _parent_style_change;
+	Widget * _current_parent;
+	Gdk::Color get_parent_bg ();
+
+	void create_patterns();
+	void adjustment_changed ();
+	void set_adjustment_from_event (GdkEventButton *);
+	void update_unity_position ();
+	int  display_span ();
+
+	struct FaderImage {
+		cairo_pattern_t* pattern;
+		double fr;
+		double fg;
+		double fb;
+		double br;
+		double bg;
+		double bb;
+		int width;
+		int height;
+
+		FaderImage (cairo_pattern_t* p,
+				double afr, double afg, double afb,
+				double abr, double abg, double abb,
+				int w, int h)
+			: pattern (p)
+				, fr (afr)
+				 , fg (afg)
+				 , fb (afb)
+				 , br (abr)
+				 , bg (abg)
+				 , bb (abb)
+				 , width (w)
+				 , height (h)
+		{}
+
+		bool matches (double afr, double afg, double afb,
+				double abr, double abg, double abb,
+				int w, int h) {
+			return width == w &&
+				height == h &&
+				afr == fr &&
+				afg == fg &&
+				afb == fb &&
+				abr == br &&
+				abg == bg &&
+				abb == bb;
+		}
+	};
+
+	static std::list<FaderImage*> _patterns;
+	static cairo_pattern_t* find_pattern (double afr, double afg, double afb,
+			double abr, double abg, double abb,
+			int w, int h);
+
+};
+
+} /* namespace */
+
+#endif /* __gtkmm2ext_pixfader_h__ */
diff --git a/libs/widgets/widgets/auto_spin.h b/libs/widgets/widgets/auto_spin.h
new file mode 100644
index 0000000000..ecea31e7fe
--- /dev/null
+++ b/libs/widgets/widgets/auto_spin.h
@@ -0,0 +1,76 @@
+/*
+    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 _WIDGETS_AUTO_SPIN_H_
+#define _WIDGETS_AUTO_SPIN_H_
+
+#ifdef interface
+#undef interface
+#endif
+
+#include <gtkmm.h>
+
+#include "widgets/visibility.h"
+
+namespace ArdourWidgets {
+
+class LIBWIDGETS_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);
+	gint scroll_event (GdkEventScroll *);
+
+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
diff --git a/libs/widgets/widgets/barcontroller.h b/libs/widgets/widgets/barcontroller.h
new file mode 100644
index 0000000000..fc2ac358cc
--- /dev/null
+++ b/libs/widgets/widgets/barcontroller.h
@@ -0,0 +1,83 @@
+/*
+    Copyright (C) 2004 Paul 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 _WIDGETS_BAR_CONTROLLER_H_
+#define _WIDGETS_BAR_CONTROLLER_H_
+
+#include <gtkmm/alignment.h>
+#include <cairo.h>
+
+#include "gtkmm2ext/binding_proxy.h"
+#include "widgets/slider_controller.h"
+#include "widgets/visibility.h"
+
+namespace ArdourWidgets {
+
+class LIBWIDGETS_API BarController : public Gtk::Alignment
+{
+public:
+	BarController (Gtk::Adjustment& adj, boost::shared_ptr<PBD::Controllable>);
+
+	virtual ~BarController ();
+
+	void set_sensitive (bool yn);
+
+	ArdourFader::Tweaks tweaks() const { return _slider.tweaks (); }
+	void set_tweaks (ArdourFader::Tweaks t) { _slider.set_tweaks (t);}
+
+	sigc::signal<void> StartGesture;
+	sigc::signal<void> StopGesture;
+
+	/* export this to allow direct connection to button events */
+	Gtk::Widget& event_widget() { return _slider; }
+
+	/** Emitted when the adjustment spinner is activated or deactivated;
+	 *  the parameter is true on activation, false on deactivation.
+	 */
+	sigc::signal<void, bool> SpinnerActive;
+
+protected:
+	bool on_button_press_event (GdkEventButton*);
+	bool on_button_release_event (GdkEventButton*);
+	void on_style_changed (const Glib::RefPtr<Gtk::Style>&);
+
+	virtual std::string get_label (double& /*x*/) {
+		return "";
+	}
+
+private:
+	HSliderController _slider;
+	bool entry_focus_out (GdkEventFocus*);
+	void entry_activated ();
+	void before_expose ();
+
+	gint switch_to_bar ();
+	gint switch_to_spinner ();
+
+	bool _switching;
+	bool _switch_on_release;
+
+
+	void passtrhu_gesture_start() { StartGesture (); }
+	void passtrhu_gesture_stop()  { StopGesture (); }
+};
+
+
+}; /* namespace */
+
+#endif // __gtkmm2ext_bar_controller_h__
diff --git a/libs/widgets/widgets/click_box.h b/libs/widgets/widgets/click_box.h
new file mode 100644
index 0000000000..fa4868467f
--- /dev/null
+++ b/libs/widgets/widgets/click_box.h
@@ -0,0 +1,81 @@
+/*
+    Copyright (C) 1999 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 _WIDGETS_CLICK_BOX_H_
+#define _WIDGETS_CLICK_BOX_H_
+
+#ifdef interface
+#undef interface
+#endif
+
+#include <string>
+#include <gtkmm.h>
+
+#include "gtkmm2ext/binding_proxy.h"
+
+#include "widgets/auto_spin.h"
+#include "widgets/visibility.h"
+
+namespace PBD {
+	class Controllable;
+}
+
+namespace ArdourWidgets {
+
+class LIBWIDGETS_API ClickBox : public Gtk::DrawingArea, public AutoSpin
+{
+  public:
+	ClickBox (Gtk::Adjustment *adj, const std::string &name, bool round_to_steps = false);
+	~ClickBox ();
+
+	/** Set a slot to `print' the value to put in the box.
+	 *  The slot should write the value of the Gtk::Adjustment
+	 *  into the char array, and should return true if it has done the printing,
+	 *  or false to use the ClickBox's default printing method.
+	 */
+	void set_printer (sigc::slot<bool, char *, Gtk::Adjustment &>);
+
+	void set_controllable (boost::shared_ptr<PBD::Controllable> c) {
+		_binding_proxy.set_controllable (c);
+	}
+
+  protected:
+	bool on_expose_event (GdkEventExpose*);
+	bool on_enter_notify_event (GdkEventCrossing* ev);
+	bool on_leave_notify_event (GdkEventCrossing* ev);
+
+	BindingProxy _binding_proxy;
+
+  private:
+	Glib::RefPtr<Pango::Layout> layout;
+	int twidth;
+	int theight;
+
+	void set_label ();
+	void style_changed (const Glib::RefPtr<Gtk::Style> &);
+	bool button_press_handler (GdkEventButton *);
+	bool button_release_handler (GdkEventButton *);
+	bool on_scroll_event (GdkEventScroll*);
+
+	sigc::slot<bool, char *, Gtk::Adjustment &> _printer;
+};
+
+} /* namespace */
+
+#endif
diff --git a/libs/widgets/widgets/fastmeter.h b/libs/widgets/widgets/fastmeter.h
new file mode 100644
index 0000000000..b1d2f3f4f9
--- /dev/null
+++ b/libs/widgets/widgets/fastmeter.h
@@ -0,0 +1,177 @@
+/*
+    Copyright (C) 2003 Paul 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 _WIDGETS_FAST_METER_H_
+#define _WIDGETS_FAST_METER_H_
+
+#include <map>
+#include <boost/tuple/tuple.hpp>
+#include <boost/tuple/tuple_comparison.hpp>
+#include <cairomm/pattern.h>
+#include "gtkmm2ext/cairo_widget.h"
+
+#include "widgets/visibility.h"
+
+namespace ArdourWidgets {
+
+class LIBWIDGETS_API FastMeter : public CairoWidget {
+public:
+	enum Orientation {
+		Horizontal,
+		Vertical
+	};
+
+	FastMeter (long hold_cnt, unsigned long width, Orientation, int len=0,
+			int clr0=0x008800ff, int clr1=0x008800ff,
+			int clr2=0x00ff00ff, int clr3=0x00ff00ff,
+			int clr4=0xffaa00ff, int clr5=0xffaa00ff,
+			int clr6=0xffff00ff, int clr7=0xffff00ff,
+			int clr8=0xff0000ff, int clr9=0xff0000ff,
+			int bgc0=0x333333ff, int bgc1=0x444444ff,
+			int bgh0=0x991122ff, int bgh1=0x551111ff,
+			float stp0 = 55.0, // log_meter(-18);
+			float stp1 = 77.5, // log_meter(-9);
+			float stp2 = 92.5, // log_meter(-3); // 95.0, // log_meter(-2);
+			float stp3 = 100.0,
+			int styleflags = 3
+			);
+	virtual ~FastMeter ();
+	static void flush_pattern_cache();
+
+	void set (float level, float peak = -1);
+	void clear ();
+
+	float get_level() { return current_level; }
+	float get_user_level() { return current_user_level; }
+	float get_peak() { return current_peak; }
+
+	long hold_count() { return hold_cnt; }
+	void set_hold_count (long);
+	void set_highlight (bool);
+	bool get_highlight () { return highlight; }
+	void render (Cairo::RefPtr<Cairo::Context> const&, cairo_rectangle_t*);
+
+protected:
+	void on_size_request (GtkRequisition*);
+	void on_size_allocate (Gtk::Allocation&);
+
+private:
+	Cairo::RefPtr<Cairo::Pattern> fgpattern;
+	Cairo::RefPtr<Cairo::Pattern> bgpattern;
+	gint pixheight;
+	gint pixwidth;
+
+	float _stp[4];
+	int _clr[10];
+	int _bgc[2];
+	int _bgh[2];
+	int _styleflags;
+
+	Orientation orientation;
+	GdkRectangle pixrect;
+	GdkRectangle last_peak_rect;
+	gint request_width;
+	gint request_height;
+	unsigned long hold_cnt;
+	unsigned long hold_state;
+	bool bright_hold;
+	float current_level;
+	float current_peak;
+	float current_user_level;
+	bool highlight;
+
+	void vertical_expose (cairo_t*, cairo_rectangle_t*);
+	void vertical_size_request (GtkRequisition*);
+	void vertical_size_allocate (Gtk::Allocation&);
+	void queue_vertical_redraw (const Glib::RefPtr<Gdk::Window>&, float);
+
+	void horizontal_expose (cairo_t*, cairo_rectangle_t*);
+	void horizontal_size_request (GtkRequisition*);
+	void horizontal_size_allocate (Gtk::Allocation&);
+	void queue_horizontal_redraw (const Glib::RefPtr<Gdk::Window>&, float);
+
+	static bool no_rgba_overlay;
+
+	static Cairo::RefPtr<Cairo::Pattern> generate_meter_pattern (
+		int, int, int *, float *, int, bool);
+	static Cairo::RefPtr<Cairo::Pattern> request_vertical_meter (
+		int, int, int *, float *, int);
+	static Cairo::RefPtr<Cairo::Pattern> request_horizontal_meter (
+		int, int, int *, float *, int);
+
+	static Cairo::RefPtr<Cairo::Pattern> generate_meter_background (
+		int, int, int *, bool, bool);
+	static Cairo::RefPtr<Cairo::Pattern> request_vertical_background (
+		int, int, int *, bool);
+	static Cairo::RefPtr<Cairo::Pattern> request_horizontal_background (
+		int, int, int *, bool);
+
+	struct Pattern10MapKey {
+		Pattern10MapKey (
+				int w, int h,
+				float stp0, float stp1, float stp2, float stp3,
+				int c0, int c1, int c2, int c3,
+				int c4, int c5, int c6, int c7,
+				int c8, int c9, int st
+				)
+			: dim(w, h)
+			, stp(stp0, stp1, stp2, stp3)
+			, cols(c0, c1, c2, c3, c4, c5, c6, c7, c8, c9)
+			, style(st)
+		{}
+		inline bool operator<(const Pattern10MapKey& rhs) const {
+			return (dim < rhs.dim)
+				|| (dim == rhs.dim && stp < rhs.stp)
+				|| (dim == rhs.dim && stp == rhs.stp && cols < rhs.cols)
+				|| (dim == rhs.dim && stp == rhs.stp && cols == rhs.cols && style < rhs.style);
+		}
+		boost::tuple<int, int> dim;
+		boost::tuple<float, float, float, float> stp;
+		boost::tuple<int, int, int, int, int, int, int, int, int, int> cols;
+		int style;
+	};
+	typedef std::map<Pattern10MapKey, Cairo::RefPtr<Cairo::Pattern> > Pattern10Map;
+
+	struct PatternBgMapKey {
+		PatternBgMapKey (int w, int h, int c0, int c1, bool shade)
+			: dim(w, h)
+			, cols(c0, c1)
+			, sh(shade)
+		{}
+		inline bool operator<(const PatternBgMapKey& rhs) const {
+			return (dim < rhs.dim) || (dim == rhs.dim && cols < rhs.cols) || (dim == rhs.dim && cols == rhs.cols && (sh && !rhs.sh));
+		}
+		boost::tuple<int, int> dim;
+		boost::tuple<int, int> cols;
+		bool sh;
+	};
+	typedef std::map<PatternBgMapKey, Cairo::RefPtr<Cairo::Pattern> > PatternBgMap;
+
+	static Pattern10Map vm_pattern_cache;
+	static PatternBgMap vb_pattern_cache;
+	static Pattern10Map hm_pattern_cache;
+	static PatternBgMap hb_pattern_cache;
+	static int min_pattern_metric_size; // min dimension for axis that displays the meter level
+	static int max_pattern_metric_size; // max dimension for axis that displays the meter level
+};
+
+
+} /* namespace */
+
+#endif
diff --git a/libs/widgets/widgets/focus_entry.h b/libs/widgets/widgets/focus_entry.h
new file mode 100644
index 0000000000..f0fa22232b
--- /dev/null
+++ b/libs/widgets/widgets/focus_entry.h
@@ -0,0 +1,43 @@
+/*
+    Copyright (C) 2000-2007 Paul 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 _WIDGETS_FOCUS_ENTRY_H_
+#define _WIDGETS_FOCUS_ENTRY_H_
+
+#include <gtkmm/entry.h>
+
+#include "widgets/visibility.h"
+
+namespace ArdourWidgets {
+
+class LIBWIDGETS_API FocusEntry : public Gtk::Entry
+{
+public:
+	FocusEntry ();
+
+protected:
+	bool on_button_press_event (GdkEventButton*);
+	bool on_button_release_event (GdkEventButton*);
+private:
+	bool next_release_selects;
+};
+
+} /* end namespace */
+
+#endif
diff --git a/libs/widgets/widgets/searchbar.h b/libs/widgets/widgets/searchbar.h
new file mode 100644
index 0000000000..2b3957f38f
--- /dev/null
+++ b/libs/widgets/widgets/searchbar.h
@@ -0,0 +1,40 @@
+#pragma once
+
+#include <gtkmm/entry.h>
+#include <string>
+
+#include "widgets/visibility.h"
+
+namespace ArdourWidgets {
+
+class LIBWIDGETS_API SearchBar : public Gtk::Entry
+{
+public:
+	SearchBar (
+		const std::string& placeholder_text = "Search...",
+		bool icon_click_resets = true);
+
+	/** resets the searchbar to the initial state */
+	void reset ();
+
+	/* emitted when the filter has been updated */
+	sigc::signal<void, const std::string&> signal_search_string_updated () { return sig_search_string_updated; }
+
+protected:
+	bool focus_in_event (GdkEventFocus*);
+	bool focus_out_event (GdkEventFocus*);
+
+	bool key_press_event (GdkEventKey*);
+	void icon_clicked_event (Gtk::EntryIconPosition, const GdkEventButton*);
+
+	const std::string placeholder_text;
+	sigc::signal<void, const std::string&> sig_search_string_updated;
+
+private:
+	void search_string_changed () const;
+
+	Glib::RefPtr<Gdk::Pixbuf> icon;
+	bool icon_click_resets;
+};
+
+} /* end namespace */
diff --git a/libs/widgets/widgets/slider_controller.h b/libs/widgets/widgets/slider_controller.h
new file mode 100644
index 0000000000..e80e76d7bc
--- /dev/null
+++ b/libs/widgets/widgets/slider_controller.h
@@ -0,0 +1,81 @@
+/*
+    Copyright (C) 1998-2006 Paul 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 _WIDGETS_SLIDER_CONTROLLER_H_
+#define _WIDGETS_SLIDER_CONTROLLER_H_
+
+#ifdef interface
+#undef interface
+#endif
+
+#include <gtkmm.h>
+#include <boost/shared_ptr.hpp>
+
+#include "gtkmm2ext/popup.h"
+#include "gtkmm2ext/binding_proxy.h"
+
+#include "widgets/ardour_fader.h"
+#include "widgets/visibility.h"
+
+namespace PBD {
+	class Controllable;
+}
+
+namespace ArdourWidgets {
+
+class LIBWIDGETS_API SliderController : public ArdourWidgets::ArdourFader
+{
+public:
+	SliderController (Gtk::Adjustment* adj, boost::shared_ptr<PBD::Controllable> mc, int orientation, int, int);
+
+	virtual ~SliderController () {}
+
+	Gtk::SpinButton& get_spin_button () { assert(_ctrl); return _spin; }
+	void set_controllable (boost::shared_ptr<PBD::Controllable> c) { _binding_proxy.set_controllable (c); }
+
+protected:
+	bool on_button_press_event (GdkEventButton *ev);
+	bool on_enter_notify_event (GdkEventCrossing* ev);
+	bool on_leave_notify_event (GdkEventCrossing* ev);
+	void ctrl_adjusted();
+	void spin_adjusted();
+
+	BindingProxy _binding_proxy;
+	boost::shared_ptr<PBD::Controllable> _ctrl;
+	Gtk::Adjustment *_ctrl_adj;
+	Gtk::Adjustment _spin_adj;
+	Gtk::SpinButton _spin;
+	bool _ctrl_ignore;
+	bool _spin_ignore;
+};
+
+class LIBWIDGETS_API VSliderController : public SliderController
+{
+public:
+	VSliderController (Gtk::Adjustment *adj, boost::shared_ptr<PBD::Controllable> mc, int, int);
+};
+
+class LIBWIDGETS_API HSliderController : public SliderController
+{
+public:
+	HSliderController (Gtk::Adjustment *adj, boost::shared_ptr<PBD::Controllable> mc, int, int);
+};
+
+}; /* namespace */
+
+#endif