2 Copyright (C) 2002 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #ifndef __ardour_gtk_utils_h__
22 #define __ardour_gtk_utils_h__
27 #include <ardour/types.h>
28 #include <libgnomecanvas/libgnomecanvas.h>
29 #include <gdkmm/types.h>
38 gain_to_slider_position (ARDOUR::gain_t g)
41 return pow((6.0*log(g)/log(2.0)+192.0)/198.0, 8.0);
45 static inline ARDOUR::gain_t
46 slider_position_to_gain (double pos)
48 /* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
49 if (pos == 0.0) return 0;
50 return pow (2.0,(sqrt(sqrt(sqrt(pos)))*198.0-192.0)/6.0);
53 std::string short_version (std::string, std::string::size_type target_length);
54 std::string fit_to_pixels (std::string, int32_t pixel_width, Gdk_Font&);
56 int atoi (const std::string&);
57 double atof (const std::string&);
58 void strip_whitespace_edges (std::string& str);
59 void url_decode (std::string&);
60 gint just_hide_it (GdkEventAny*, Gtk::Window*);
61 void allow_keyboard_focus (bool);
63 unsigned char* xpm2rgb (const char** xpm, uint32_t& w, uint32_t& h);
64 unsigned char* xpm2rgba (const char** xpm, uint32_t& w, uint32_t& h);
66 GnomeCanvasPoints* get_canvas_points (std::string who, uint32_t npoints);
68 int channel_combo_get_channel_count (Gtk::Combo& combo);
69 std::string get_font_for_style (std::string widgetname);
71 gint pane_handler (GdkEventButton*, Gtk::Paned*);
72 uint32_t rgba_from_style (std::string style, uint32_t, uint32_t, uint32_t, uint32_t);
74 #endif /* __ardour_gtk_utils_h__ */