1 files changed, 92 insertions, 0 deletions
diff --git a/libs/gtkmm2ext/gtkmm2ext/fastmeter.h b/libs/gtkmm2ext/gtkmm2ext/fastmeter.h
new file mode 100644
index 0000000000..2bf4539d87
--- /dev/null
+++ b/libs/gtkmm2ext/gtkmm2ext/fastmeter.h
@@ -0,0 +1,92 @@
+/*
+    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 __gtkmm2ext_fastmeter_h__
+#define __gtkmm2ext_fastmeter_h__
+
+#include <gtkmm/drawingarea.h>
+#include <gdkmm/pixbuf.h>
+
+namespace Gtkmm2ext {
+
+class FastMeter : public Gtk::DrawingArea {
+  public:
+	enum Orientation { 
+		Horizontal,
+		Vertical
+	};
+	
+	FastMeter (long hold_cnt, unsigned long width, Orientation, int len=0, int clrb0=0x00ff00, int clr1=0xffff00, int clr2=0xffaa00, int clr3=0xff0000);
+	virtual ~FastMeter ();
+	
+	void set (float level);
+	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);
+	
+  protected:
+	bool on_expose_event (GdkEventExpose*);
+	void on_size_request (GtkRequisition*);
+	void on_size_allocate (Gtk::Allocation&);
+
+  private:  
+
+	Glib::RefPtr<Gdk::Pixbuf> pixbuf;
+	gint pixheight;
+	gint pixwidth;
+	static int _clr0, _clr1, _clr2, _clr3;
+
+	Orientation orientation;
+	GdkRectangle pixrect;
+	GdkRectangle last_peak_rect;
+	gint request_width;
+	gint request_height;
+	unsigned long hold_cnt;
+	unsigned long hold_state;
+	float current_level;
+	float current_peak;
+	float current_user_level;
+	
+	bool vertical_expose (GdkEventExpose*);
+	bool horizontal_expose (GdkEventExpose*);
+	void queue_vertical_redraw (const Glib::RefPtr<Gdk::Window>&, float);
+	void queue_horizontal_redraw (const Glib::RefPtr<Gdk::Window>&, float);
+
+	static Glib::RefPtr<Gdk::Pixbuf> request_vertical_meter(int w, int h);
+
+	static Glib::RefPtr<Gdk::Pixbuf> *v_pixbuf_cache;
+	static int min_v_pixbuf_size;
+	static int max_v_pixbuf_size;
+
+	static Glib::RefPtr<Gdk::Pixbuf> request_horizontal_meter(int w, int h);
+
+	static Glib::RefPtr<Gdk::Pixbuf> *h_pixbuf_cache;
+	static int min_h_pixbuf_size;
+	static int max_h_pixbuf_size;
+};
+
+
+} /* namespace */
+
+ #endif /* __gtkmm2ext_fastmeter_h__ */