75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/*
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Copyright (C) 2002 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#ifndef __ardour_gtk_utils_h__
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#define __ardour_gtk_utils_h__
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#include <string>
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#include <vector>
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#include <cmath>
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#include <ardour/types.h>
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#include <gtk-canvas.h>
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#include <gdk--/types.h>
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namespace Gtk {
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class Window;
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class Combo;
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class Paned;
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}
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static inline double
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gain_to_slider_position (ARDOUR::gain_t g)
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{
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if (g == 0) return 0;
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return pow((6.0*log(g)/log(2.0)+192.0)/198.0, 8.0);
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}
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static inline ARDOUR::gain_t
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slider_position_to_gain (double pos)
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{
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/* XXX Marcus writes: this doesn't seem right to me. but i don't have a better answer ... */
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if (pos == 0.0) return 0;
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return pow (2.0,(sqrt(sqrt(sqrt(pos)))*198.0-192.0)/6.0);
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}
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std::string short_version (std::string, std::string::size_type target_length);
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std::string fit_to_pixels (std::string, int32_t pixel_width, Gdk_Font&);
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int atoi (const std::string&);
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double atof (const std::string&);
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void strip_whitespace_edges (std::string& str);
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void url_decode (std::string&);
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gint just_hide_it (GdkEventAny*, Gtk::Window*);
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void allow_keyboard_focus (bool);
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unsigned char* xpm2rgb (const char** xpm, uint32_t& w, uint32_t& h);
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unsigned char* xpm2rgba (const char** xpm, uint32_t& w, uint32_t& h);
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GtkCanvasPoints* get_canvas_points (std::string who, uint32_t npoints);
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int channel_combo_get_channel_count (Gtk::Combo& combo);
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std::string get_font_for_style (std::string widgetname);
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gint pane_handler (GdkEventButton*, Gtk::Paned*);
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uint32_t rgba_from_style (std::string style, uint32_t, uint32_t, uint32_t, uint32_t);
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#endif /* __ardour_gtk_utils_h__ */
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