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/*
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.
*/
#ifndef __ardour_gtk_utils_h__
#define __ardour_gtk_utils_h__
#include <string>
#include <cmath>
#include <vector>
#include <ardour/types.h>
#include <libgnomecanvasmm/line.h>
#include <gdkmm/types.h>
#include <glibmm/ustring.h>
#include "canvas.h"
#include "public_editor.h"
namespace Gtk {
class Window;
class ComboBoxText;
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);
}
Glib::ustring fit_to_pixels (const Glib::ustring&, int pixel_width, Pango::FontDescription& font, int& actual_width, bool with_ellipses = false);
int pixel_width (const Glib::ustring& str, Pango::FontDescription& font);
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);
ArdourCanvas::Points* get_canvas_points (std::string who, uint32_t npoints);
Pango::FontDescription* get_font_for_style (std::string widgetname);
uint32_t rgba_from_style (std::string, uint32_t, uint32_t, uint32_t, uint32_t, std::string = "fg", int = Gtk::STATE_NORMAL, bool = true);
Gdk::Color color_from_style (std::string widget_style_name, int state, std::string attr);
void decorate (Gtk::Window& w, Gdk::WMDecoration d);
bool canvas_item_visible (ArdourCanvas::Item* item);
void set_color (Gdk::Color&, int);
bool relay_key_press (GdkEventKey*, Gtk::Window*);
bool key_press_focus_accelerator_handler (Gtk::Window& window, GdkEventKey* ev);
bool possibly_translate_keyval_to_make_legal_accelerator (uint32_t& keyval);
Glib::RefPtr<Gdk::Pixbuf> get_xpm (std::string);
Glib::RefPtr<Gdk::Pixbuf> get_icon (const char*);
static std::map<std::string, Glib::RefPtr<Gdk::Pixbuf> > xpm_map;
const char* const *get_xpm_data (std::string path);
std::string longest (std::vector<std::string>&);
bool key_is_legal_for_numeric_entry (guint keyval);
void reset_dpi ();
void set_pango_fontsize ();
inline guint8 convert_color_channel (guint8 src, guint8 alpha);
void convert_bgra_to_rgba (guint8 const* src,
guint8* dst,
int width,
int height);
Glib::RefPtr<Gdk::Pixbuf> pixbuf_from_ustring (const Glib::ustring& name,
Pango::FontDescription* font,
int clip_width,
int clip_height);
#endif /* __ardour_gtk_utils_h__ */
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