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/*
Copyright (C) 2002 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.
$Id$
*/
#ifndef __ardour_panner_2d_h__
#define __ardour_panner_2d_h__
#include <sys/types.h>
#include <map>
#include <string>
#include <glibmm/refptr.h>
#include <gtkmm/drawingarea.h>
using std::map;
using std::string;
namespace ARDOUR {
class Panner;
}
namespace Gtk {
class Menu;
class CheckMenuItem;
}
namespace Pango {
class Layout;
}
class Panner2d : public Gtk::DrawingArea
{
public:
Panner2d (ARDOUR::Panner&, int32_t width, int32_t height);
~Panner2d ();
int puck_position (int which_puck, float& x, float& y);
int target_position (int which_target, float& x, float& y);
void allow_x_motion(bool);
void allow_y_motion(bool);
void allow_target_motion (bool);
void hide_puck (int which);
void show_puck (int which);
int add_target (float x, float y);
int add_puck (const char* text, float x, float y);
void hide_target (int);
void show_target (int);
void remove_target (int);
void drop_targets ();
void drop_pucks ();
void move_target (int, float x, float y);
void move_puck (int, float x, float y);
void reset (uint32_t n_inputs);
sigc::signal<void,int> PuckMoved;
sigc::signal<void,int> TargetMoved;
protected:
bool on_expose_event (GdkEventExpose *);
bool on_button_press_event (GdkEventButton *);
bool on_button_release_event (GdkEventButton *);
bool on_motion_notify_event (GdkEventMotion *);
void on_size_allocate (Gtk::Allocation& alloc);
private:
struct Target {
float x;
float y;
bool visible;
char* text;
size_t textlen;
Target (float xa, float ya, const char* txt = 0);
~Target ();
};
ARDOUR::Panner& panner;
Gtk::Menu* context_menu;
Gtk::CheckMenuItem* bypass_menu_item;
Glib::RefPtr<Pango::Layout> layout;
typedef std::map<int,Target *> Targets;
Targets targets;
Targets pucks;
Target *drag_target;
int drag_index;
bool drag_is_puck;
bool allow_x;
bool allow_y;
bool allow_target;
int width;
int height;
bool bypassflag;
gint compute_x (float);
gint compute_y (float);
Target *find_closest_object (gdouble x, gdouble y, int& which, bool& is_puck) const;
gint handle_motion (gint, gint, GdkModifierType);
void toggle_bypass ();
void show_context_menu ();
void handle_state_change ();
};
#endif /* __ardour_panner_2d_h__ */
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