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/*
Copyright (C) 2016 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_push2_menu_h__
#define __ardour_push2_menu_h__
#include <vector>
namespace Cairo {
class Context;
class Region;
}
#include <pangomm/fontdescription.h>
#include "pbd/signals.h"
#include "canvas/container.h"
namespace ArdourCanvas {
class Text;
class Rectangle;
class Rect;
}
namespace ArdourSurface {
class Push2Menu : public ArdourCanvas::Container
{
public:
Push2Menu (ArdourCanvas::Item* parent, std::vector<std::string>);
void render (ArdourCanvas::Rect const& area, Cairo::RefPtr<Cairo::Context> context) const;
void set_wrap (bool);
void set_active (uint32_t index);
uint32_t active () const { return _active; }
uint32_t items() const { return displays.size(); }
uint32_t rows() const { return nrows; }
uint32_t cols() const { return ncols; }
void set_layout (int cols, int rows);
void set_font_description (Pango::FontDescription);
void set_text_color (ArdourCanvas::Color);
void set_active_color (ArdourCanvas::Color);
bool can_scroll_left() const { return first >= nrows; }
bool can_scroll_right() const { return last < displays.size() - 1; }
enum Direction { DirectionUp, DirectionDown, DirectionLeft, DirectionRight };
void scroll (Direction, bool page = false);
PBD::Signal0<void> ActiveChanged;
PBD::Signal0<void> Rearranged;
private:
std::vector<ArdourCanvas::Text*> displays;
ArdourCanvas::Rectangle* active_bg;
void rearrange (uint32_t initial_display);
double baseline;
int row_start;
int col_start;
uint32_t ncols;
uint32_t nrows;
bool wrap;
uint32_t first;
uint32_t last;
uint32_t _active;
ArdourCanvas::Color text_color;
ArdourCanvas::Color active_color;
ArdourCanvas::Color contrast_color;
Pango::FontDescription font_description;
inline int active_row () const { return _active % nrows; }
inline int active_col () const { return (_active / nrows); }
inline int active_top () const { return active_col() * nrows; }
};
} // namespace
#endif /* __ardour_push2_menu_h__ */
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