Initial import of gtk2_ardour.

git-svn-id: svn://localhost/trunk/ardour2@24 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 115 insertions, 0 deletions

diff --git a/gtk2_ardour/panner2d.h b/gtk2_ardour/panner2d.h
new file mode 100644
index 0000000000..8161be29f2
--- /dev/null
+++ b/gtk2_ardour/panner2d.h
@@ -0,0 +1,115 @@
+/*
+    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 <gtk--.h>
+
+using std::map;
+using std::string;
+
+namespace ARDOUR {
+	class Panner;
+}
+
+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::Signal1<void,int> PuckMoved;
+	SigC::Signal1<void,int> TargetMoved;
+
+  protected:
+	gint expose_event_impl (GdkEventExpose *);
+	gint button_press_event_impl (GdkEventButton *);
+	gint button_release_event_impl (GdkEventButton *);
+	gint motion_notify_event_impl (GdkEventMotion *);
+	void size_allocate_impl (GtkAllocation* 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;
+
+	typedef 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__ */