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 <libgnomecanvasmm/line.h>
29 #include <gdkmm/types.h>
39 gain_to_slider_position (ARDOUR::gain_t g)
42 return pow((6.0*log(g)/log(2.0)+192.0)/198.0, 8.0);
46 static inline ARDOUR::gain_t
47 slider_position_to_gain (double pos)
49 /* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
50 if (pos == 0.0) return 0;
51 return pow (2.0,(sqrt(sqrt(sqrt(pos)))*198.0-192.0)/6.0);
54 std::string short_version (std::string, std::string::size_type target_length);
55 std::string fit_to_pixels (std::string, int pixel_width, std::string font);
57 int atoi (const std::string&);
58 double atof (const std::string&);
59 void strip_whitespace_edges (std::string& str);
60 void url_decode (std::string&);
61 gint just_hide_it (GdkEventAny*, Gtk::Window*);
62 void allow_keyboard_focus (bool);
64 unsigned char* xpm2rgb (const char** xpm, uint32_t& w, uint32_t& h);
65 unsigned char* xpm2rgba (const char** xpm, uint32_t& w, uint32_t& h);
67 ArdourCanvas::Points* get_canvas_points (std::string who, uint32_t npoints);
69 int channel_combo_get_channel_count (Gtk::ComboBoxText& combo);
70 Pango::FontDescription get_font_for_style (std::string widgetname);
72 gint pane_handler (GdkEventButton*, Gtk::Paned*);
73 uint32_t rgba_from_style (std::string style, uint32_t, uint32_t, uint32_t, uint32_t);
75 void decorate (Gtk::Window& w, Gdk::WMDecoration d);
77 bool canvas_item_visible (ArdourCanvas::Item* item);
79 #endif /* __ardour_gtk_utils_h__ */