Initial import of gtk2_ardour.

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

1 files changed, 74 insertions, 0 deletions

diff --git a/gtk2_ardour/utils.h b/gtk2_ardour/utils.h
new file mode 100644
index 0000000000..bc0f5cfdec
--- /dev/null
+++ b/gtk2_ardour/utils.h
@@ -0,0 +1,74 @@
+/*
+    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_gtk_utils_h__
+#define __ardour_gtk_utils_h__
+
+#include <string>
+#include <vector>
+#include <cmath>
+#include <ardour/types.h>
+#include <gtk-canvas.h>
+#include <gdk--/types.h>
+
+namespace Gtk {
+	class Window;
+	class Combo;
+	class Paned;
+}
+
+static inline double 
+gain_to_slider_position (ARDOUR::gain_t g)
+{
+	if (g == 0) return 0;
+	return pow((6.0*log(g)/log(2.0)+192.0)/198.0, 8.0);
+
+}
+
+static inline ARDOUR::gain_t 
+slider_position_to_gain (double pos)
+{
+	/* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
+	if (pos == 0.0) return 0;
+	return pow (2.0,(sqrt(sqrt(sqrt(pos)))*198.0-192.0)/6.0);
+}
+
+std::string short_version (std::string, std::string::size_type target_length);
+std::string fit_to_pixels (std::string, int32_t pixel_width, Gdk_Font&);
+
+int    atoi (const std::string&);
+double atof (const std::string&);
+void   strip_whitespace_edges (std::string& str);
+void   url_decode (std::string&);
+gint   just_hide_it (GdkEventAny*, Gtk::Window*);
+void   allow_keyboard_focus (bool);
+
+unsigned char* xpm2rgb  (const char** xpm, uint32_t& w, uint32_t& h);
+unsigned char* xpm2rgba (const char** xpm, uint32_t& w, uint32_t& h);
+
+GtkCanvasPoints* get_canvas_points (std::string who, uint32_t npoints);
+
+int channel_combo_get_channel_count (Gtk::Combo& combo);
+std::string get_font_for_style (std::string widgetname);
+
+gint pane_handler (GdkEventButton*, Gtk::Paned*);
+uint32_t rgba_from_style (std::string style, uint32_t, uint32_t, uint32_t, uint32_t);
+
+#endif /* __ardour_gtk_utils_h__ */