Robin Gareus
ed3d374f47
pbd/i18n.h MUST NEVER be included from header files and always be the last include. This is because `_` is declared other headers notably boost and some apple headers. leading to issues like ../libs/pbd/gettext.h:58:27: error: expected unqualified-id before ‘const’ 58 | # define gettext(Msgid) ((const char *) (Msgid))
158 lines
3.6 KiB
C++
158 lines
3.6 KiB
C++
/*
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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 of the License, or
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* (at your option) 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <vector>
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#include <cairomm/region.h>
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#include <cairomm/surface.h>
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#include <cairomm/context.h>
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#include "pbd/compose.h"
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#include "pbd/error.h"
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#include "canvas.h"
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#include "layout.h"
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#include "maschine2.h"
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#include "m2device.h"
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#include "pbd/i18n.h"
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#ifdef __APPLE__
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#define Rect ArdourCanvas::Rect
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#endif
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using namespace ArdourCanvas;
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using namespace ArdourSurface;
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using namespace PBD;
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Maschine2Canvas::Maschine2Canvas (Maschine2&m, M2Device* hw)
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: m2 (m)
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{
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context = Cairo::Context::create (hw->surface ());
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expose_region = Cairo::Region::create ();
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_width = hw->surface ()->get_width ();
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_height = hw->surface ()->get_height ();
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hw->vblank.connect_same_thread (vblank_connections, boost::bind (&Maschine2Canvas::expose, this));
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}
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Maschine2Canvas::~Maschine2Canvas ()
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{
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}
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void
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Maschine2Canvas::request_redraw ()
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{
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request_redraw (Rect (0, 0, _width, _height));
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}
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void
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Maschine2Canvas::queue_resize ()
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{
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/* nothing to do here, for now */
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}
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void
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Maschine2Canvas::request_redraw (Rect const & r)
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{
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Cairo::RectangleInt cr;
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cr.x = r.x0;
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cr.y = r.y0;
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cr.width = r.width();
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cr.height = r.height();
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expose_region->do_union (cr);
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/* next vblank will redraw */
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}
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bool
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Maschine2Canvas::expose ()
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{
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if (expose_region->empty()) {
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return false; /* nothing drawn */
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}
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/* set up clipping */
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const int nrects = expose_region->get_num_rectangles ();
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for (int n = 0; n < nrects; ++n) {
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Cairo::RectangleInt r = expose_region->get_rectangle (n);
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context->rectangle (r.x, r.y, r.width, r.height);
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}
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context->clip ();
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Maschine2Layout* layout = m2.current_layout();
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if (layout) {
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/* all layouts cover (at least) the full size of the video
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display, so we do not need to check if the layout intersects
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the bounding box of the full expose region.
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*/
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Cairo::RectangleInt r = expose_region->get_extents();
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Rect rr (r.x, r.y, r.x + r.width, r.y + r.height);
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layout->render (Rect (r.x, r.y, r.x + r.width, r.y + r.height), context);
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}
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context->reset_clip ();
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/* why is there no "reset()" method for Cairo::Region? */
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expose_region = Cairo::Region::create ();
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return true;
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}
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void
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Maschine2Canvas::request_size (Duple)
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{
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/* fixed size canvas */
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}
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Rect
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Maschine2Canvas::visible_area () const
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{
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/* may need to get more sophisticated once we do scrolling */
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return Rect (0, 0, _width, _height);
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}
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Glib::RefPtr<Pango::Context>
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Maschine2Canvas::get_pango_context ()
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{
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if (!pango_context) {
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PangoFontMap* map = pango_cairo_font_map_get_default ();
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if (!map) {
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error << _("Default Cairo font map is null!") << endmsg;
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return Glib::RefPtr<Pango::Context> ();
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}
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PangoContext* context = pango_font_map_create_context (map);
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if (!context) {
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error << _("cannot create new PangoContext from cairo font map") << endmsg;
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return Glib::RefPtr<Pango::Context> ();
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}
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pango_context = Glib::wrap (context);
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}
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return pango_context;
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}
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