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livetrax/libs/gtkmm2ext/gtkmm2ext/barcontroller.h

120 lines
3.2 KiB
C++

/*
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 __gtkmm2ext_bar_controller_h__
#define __gtkmm2ext_bar_controller_h__
#include <gtkmm/frame.h>
#include <gtkmm/drawingarea.h>
#include <gtkmm2ext/binding_proxy.h>
#include <cairo.h>
namespace Gtkmm2ext {
class BarController : public Gtk::Frame
{
public:
BarController (Gtk::Adjustment& adj, boost::shared_ptr<PBD::Controllable>);
virtual ~BarController ();
enum barStyle {
LeftToRight,
RightToLeft,
Line,
Blob,
CenterOut,
TopToBottom,
BottomToTop
};
barStyle style() const { return _style; }
void set_style (barStyle);
void set_use_parent (bool yn);
void set_sensitive (bool yn);
void set_logarithmic (bool yn) { logarithmic = yn; }
sigc::signal<void> StartGesture;
sigc::signal<void> StopGesture;
/* export this to allow direct connection to button events */
Gtk::Widget& event_widget() { return darea; }
boost::shared_ptr<PBD::Controllable> get_controllable() { return binding_proxy.get_controllable(); }
void set_controllable(boost::shared_ptr<PBD::Controllable> c) { binding_proxy.set_controllable(c); }
/** Emitted when the adjustment spinner is activated or deactivated;
* the parameter is true on activation, false on deactivation.
*/
sigc::signal<void, bool> SpinnerActive;
protected:
Gtk::Adjustment& adjustment;
BindingProxy binding_proxy;
Gtk::DrawingArea darea;
Glib::RefPtr<Pango::Layout> layout;
barStyle _style;
bool grabbed;
bool switching;
bool switch_on_release;
double initial_value;
double grab_x;
GdkWindow* grab_window;
Gtk::SpinButton spinner;
bool use_parent;
bool logarithmic;
sigc::slot<std::string> _label_slot;
bool _use_slot;
virtual std::string get_label (double& /*x*/) {
return "";
}
void create_patterns();
Cairo::RefPtr<Cairo::Pattern> pattern;
Cairo::RefPtr<Cairo::Pattern> shine_pattern;
virtual bool button_press (GdkEventButton *);
virtual bool button_release (GdkEventButton *);
virtual bool motion (GdkEventMotion *);
virtual bool expose (GdkEventExpose *);
virtual bool scroll (GdkEventScroll *);
virtual bool entry_focus_out (GdkEventFocus*);
gint mouse_control (double x, GdkWindow* w, double scaling);
gint switch_to_bar ();
gint switch_to_spinner ();
void entry_activated ();
void drop_grab ();
int entry_input (double* new_value);
bool entry_output ();
};
}; /* namespace */
#endif // __gtkmm2ext_bar_controller_h__