88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
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/*
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* Copyright (C) 2016 Paul Davis
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* Copyright (C) 2016 Robin Gareus <robin@gareus.org>
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*
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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, or (at your option)
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* any later version.
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*
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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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*
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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 Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _ardour_maschine2_canvas_h_
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#define _ardour_maschine2_canvas_h_
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#include <cairomm/refptr.h>
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#include <glibmm/threads.h>
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#include "canvas/canvas.h"
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namespace Cairo {
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class ImageSurface;
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class Context;
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class Region;
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}
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namespace ArdourSurface {
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class M2Device;
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class Maschine2;
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/* A canvas which renders to the Push2 display */
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class Maschine2Canvas : public ArdourCanvas::Canvas
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{
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public:
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Maschine2Canvas (Maschine2&, M2Device*);
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~Maschine2Canvas();
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void request_redraw ();
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void request_redraw (ArdourCanvas::Rect const &);
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bool vblank ();
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Cairo::RefPtr<Cairo::Context> image_context() { return context; }
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ArdourCanvas::Coord width() const { return _width; }
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ArdourCanvas::Coord height() const { return _height; }
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void request_size (ArdourCanvas::Duple);
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ArdourCanvas::Rect visible_area () const;
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/* API that does nothing since we have no input events */
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void ungrab () {}
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void grab (ArdourCanvas::Item*) {}
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void focus (ArdourCanvas::Item*) {}
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void unfocus (ArdourCanvas::Item*) {}
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void re_enter() {}
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void pick_current_item (int) {}
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void pick_current_item (ArdourCanvas::Duple const &, int) {}
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bool get_mouse_position (ArdourCanvas::Duple&) const { return false; }
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Glib::RefPtr<Pango::Context> get_pango_context ();
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private:
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int _width;
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int _height;
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Cairo::RefPtr<Cairo::Context> context;
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Cairo::RefPtr<Cairo::Region> expose_region;
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Glib::RefPtr<Pango::Context> pango_context;
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Maschine2& m2;
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PBD::ScopedConnection vblank_connections;
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bool expose ();
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};
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} /* namespace ArdourSurface */
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#endif
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