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