526 lines
12 KiB
C++
526 lines
12 KiB
C++
/*
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Copyright (C) 2001 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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#include <sigc++/bind.h>
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#include "ardour/tempo.h"
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#include "canvas/rectangle.h"
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#include "canvas/group.h"
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#include "canvas/line.h"
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#include "canvas/polygon.h"
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#include "canvas/pixbuf.h"
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#include "ardour_ui.h"
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/*
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* ardour_ui.h include was moved to the top of the list
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* due to a conflicting definition of 'Rect' between
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* Apple's MacTypes.h and GTK.
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*/
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#include "marker.h"
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#include "public_editor.h"
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#include "utils.h"
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#include "rgb_macros.h"
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#include <gtkmm2ext/utils.h>
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#include "i18n.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace Gtkmm2ext;
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PBD::Signal1<void,Marker*> Marker::CatchDeletion;
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Marker::Marker (PublicEditor& ed, ArdourCanvas::Group& parent, guint32 rgba, const string& annotation,
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Type type, framepos_t frame, bool handle_events)
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: editor (ed)
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, _parent (&parent)
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, _line (0)
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, _type (type)
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, _selected (false)
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, _shown (false)
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, _line_shown (false)
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, _canvas_height (0)
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, _color (rgba)
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, _left_label_limit (DBL_MAX)
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, _right_label_limit (DBL_MAX)
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, _label_offset (0)
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{
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/* Shapes we use:
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Mark:
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(0,0) -> (6,0)
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^ |
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| V
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(0,5) (6,5)
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\ /
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(3,13)
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TempoMark:
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MeterMark:
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(3,0)
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/ \
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(0,5) -> (6,5)
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^ |
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(0,10)<-(6,10)
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Start:
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0,0\
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| \
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| \ 6,6
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| /
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0,12
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End:
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/12,0
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/ |
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/ |
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6,6 |
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\ |
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\ |
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\ |
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12,12
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PunchIn:
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0,0 ------> 13,0
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| /
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| /
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| /
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| /
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| /
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| /
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0,13
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PunchOut
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0,0 -->-13,0
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\ |
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\ |
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\ |
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\ |
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\ |
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\ |
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13,13
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*/
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switch (type) {
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case Mark:
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points = new ArdourCanvas::Points ();
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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points->push_back (ArdourCanvas::Duple (6.0, 0.0));
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points->push_back (ArdourCanvas::Duple (6.0, 5.0));
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points->push_back (ArdourCanvas::Duple (3.0, 13.0));
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points->push_back (ArdourCanvas::Duple (0.0, 5.0));
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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_shift = 3;
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_label_offset = 8.0;
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break;
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case Tempo:
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case Meter:
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points = new ArdourCanvas::Points ();
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points->push_back (ArdourCanvas::Duple (3.0, 0.0));
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points->push_back (ArdourCanvas::Duple (6.0, 5.0));
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points->push_back (ArdourCanvas::Duple (6.0, 10.0));
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points->push_back (ArdourCanvas::Duple (0.0, 10.0));
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points->push_back (ArdourCanvas::Duple (0.0, 5.0));
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points->push_back (ArdourCanvas::Duple (3.0, 0.0));
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_shift = 3;
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_label_offset = 8.0;
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break;
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case SessionStart:
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case RangeStart:
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points = new ArdourCanvas::Points ();
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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points->push_back (ArdourCanvas::Duple (6.5, 6.5));
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points->push_back (ArdourCanvas::Duple (0.0, 13.0));
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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_shift = 0;
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_label_offset = 13.0;
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break;
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case SessionEnd:
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case RangeEnd:
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points = new ArdourCanvas::Points ();
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points->push_back (ArdourCanvas::Duple (6.5, 6.5));
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points->push_back (ArdourCanvas::Duple (13.0, 0.0));
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points->push_back (ArdourCanvas::Duple (13.0, 13.0));
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points->push_back (ArdourCanvas::Duple (6.5, 6.5));
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_shift = 13;
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_label_offset = 6.0;
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break;
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case LoopStart:
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points = new ArdourCanvas::Points ();
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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points->push_back (ArdourCanvas::Duple (13.0, 13.0));
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points->push_back (ArdourCanvas::Duple (0.0, 13.0));
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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_shift = 0;
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_label_offset = 12.0;
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break;
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case LoopEnd:
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points = new ArdourCanvas::Points ();
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points->push_back (ArdourCanvas::Duple (13.0, 0.0));
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points->push_back (ArdourCanvas::Duple (13.0, 13.0));
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points->push_back (ArdourCanvas::Duple (0.0, 13.0));
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points->push_back (ArdourCanvas::Duple (13.0, 0.0));
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_shift = 13;
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_label_offset = 0.0;
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break;
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case PunchIn:
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points = new ArdourCanvas::Points ();
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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points->push_back (ArdourCanvas::Duple (13.0, 0.0));
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points->push_back (ArdourCanvas::Duple (0.0, 13.0));
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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_shift = 0;
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_label_offset = 13.0;
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break;
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case PunchOut:
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points = new ArdourCanvas::Points ();
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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points->push_back (ArdourCanvas::Duple (12.0, 0.0));
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points->push_back (ArdourCanvas::Duple (12.0, 12.0));
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points->push_back (ArdourCanvas::Duple (0.0, 0.0));
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_shift = 13;
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_label_offset = 0.0;
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break;
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}
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frame_position = frame;
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unit_position = editor.frame_to_unit (frame);
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unit_position -= _shift;
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group = new ArdourCanvas::Group (&parent, ArdourCanvas::Duple (unit_position, 0));
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#ifdef CANVAS_DEBUG
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group->name = string_compose ("Marker::group for %1", annotation);
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#endif
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_name_background = new ArdourCanvas::Rectangle (group);
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#ifdef CANVAS_DEBUG
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_name_background->name = string_compose ("Marker::_name_background for %1", annotation);
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#endif
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_name_background->set_outline_width (1);
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/* adjust to properly locate the tip */
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mark = new ArdourCanvas::Polygon (group);
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#ifdef CANVAS_DEBUG
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mark->name = string_compose ("Marker::mark for %1", annotation);
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#endif
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mark->set (*points);
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set_color_rgba (rgba);
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mark->set_outline_width (1);
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/* setup name pixbuf sizes */
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name_font = get_font_for_style (N_("MarkerText"));
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Gtk::Label foo;
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Glib::RefPtr<Pango::Layout> layout = foo.create_pango_layout (X_("Hg")); /* ascender + descender */
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int width;
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layout->set_font_description (name_font);
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Gtkmm2ext::get_ink_pixel_size (layout, width, name_height);
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name_pixbuf = new ArdourCanvas::Pixbuf (group);
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#ifdef CANVAS_DEBUG
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name_pixbuf->name = string_compose ("Marker::name_pixbuf for %1", annotation);
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#endif
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name_pixbuf->set_position (ArdourCanvas::Duple (_label_offset, 13 / 2 - name_height / 2));
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set_name (annotation.c_str());
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editor.ZoomChanged.connect (sigc::mem_fun (*this, &Marker::reposition));
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group->set_data ("marker", this);
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if (handle_events) {
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group->Event.connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_marker_event), group, this));
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}
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}
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Marker::~Marker ()
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{
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CatchDeletion (this); /* EMIT SIGNAL */
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/* destroying the parent group destroys its contents, namely any polygons etc. that we added */
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delete group;
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delete _line;
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}
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void Marker::reparent(ArdourCanvas::Group & parent)
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{
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group->reparent (&parent);
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_parent = &parent;
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}
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void
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Marker::set_selected (bool s)
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{
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_selected = s;
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setup_line ();
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}
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void
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Marker::set_show_line (bool s)
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{
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_line_shown = s;
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setup_line ();
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}
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void
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Marker::setup_line ()
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{
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if (_shown && (_selected || _line_shown)) {
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if (_line == 0) {
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_line = new ArdourCanvas::Line (group);
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_line->set_outline_color (ARDOUR_UI::config()->canvasvar_EditPoint.get());
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_line->Event.connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_marker_event), mark, this));
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}
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/* work out where to start the line from so that it extends from the top of the canvas */
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double yo = 0;
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double xo = 0;
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_line->item_to_canvas (xo, yo);
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_line->set_x0 (_shift);
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_line->set_x1 (_shift);
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_line->set_y0 (-yo); // zero in world coordinates, negative in item/parent coordinate space
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_line->set_y1 (-yo + _canvas_height);
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_line->set_outline_color (_selected ? ARDOUR_UI::config()->canvasvar_EditPoint.get() : _color);
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_line->raise_to_top ();
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_line->show ();
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} else {
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if (_line) {
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_line->hide ();
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}
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}
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}
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void
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Marker::canvas_height_set (double h)
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{
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_canvas_height = h;
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setup_line ();
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}
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ArdourCanvas::Item&
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Marker::the_item() const
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{
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return *mark;
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}
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void
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Marker::set_name (const string& new_name)
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{
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_name = new_name;
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setup_name_display ();
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}
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/** @return true if our label is on the left of the mark, otherwise false */
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bool
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Marker::label_on_left () const
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{
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return (_type == SessionEnd || _type == RangeEnd || _type == LoopEnd || _type == PunchOut);
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}
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void
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Marker::setup_name_display ()
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{
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double limit = DBL_MAX;
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if (label_on_left ()) {
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limit = _left_label_limit;
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} else {
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limit = _right_label_limit;
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}
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/* Work out how wide the name can be */
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int name_width = min ((double) pixel_width (_name, name_font) + 2, limit);
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if (name_width == 0) {
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name_width = 1;
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}
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if (label_on_left ()) {
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name_pixbuf->set_x_position (-name_width);
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}
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name_pixbuf->set (pixbuf_from_string (_name, name_font, name_width, name_height, Gdk::Color ("#000000")));
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if (label_on_left ()) {
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_name_background->set_x0 (name_pixbuf->position().x - 2);
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_name_background->set_x1 (name_pixbuf->position().x + name_width + _shift);
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} else {
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_name_background->set_x0 (name_pixbuf->position().x - _label_offset + 2);
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_name_background->set_x1 (name_pixbuf->position().x + name_width);
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}
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_name_background->set_y0 (0);
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_name_background->set_y1 (13);
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}
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void
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Marker::set_position (framepos_t frame)
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{
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unit_position = editor.frame_to_unit (frame) - _shift;
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group->set_x_position (unit_position);
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frame_position = frame;
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}
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void
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Marker::reposition ()
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{
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set_position (frame_position);
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}
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void
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Marker::show ()
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{
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_shown = true;
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group->show ();
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setup_line ();
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}
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void
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Marker::hide ()
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{
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_shown = false;
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group->hide ();
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setup_line ();
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}
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void
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Marker::set_color_rgba (uint32_t c)
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{
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_color = c;
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mark->set_fill_color (_color);
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mark->set_outline_color (_color);
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if (_line && !_selected) {
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_line->set_outline_color (_color);
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}
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_name_background->set_fill (true);
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_name_background->set_fill_color (UINT_RGBA_CHANGE_A (_color, 0x70));
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_name_background->set_outline_color (_color);
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}
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/** Set the number of pixels that are available for a label to the left of the centre of this marker */
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void
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Marker::set_left_label_limit (double p)
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{
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/* Account for the size of the marker */
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_left_label_limit = p - 13;
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if (_left_label_limit < 0) {
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_left_label_limit = 0;
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}
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if (label_on_left ()) {
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setup_name_display ();
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}
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}
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/** Set the number of pixels that are available for a label to the right of the centre of this marker */
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void
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Marker::set_right_label_limit (double p)
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{
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/* Account for the size of the marker */
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_right_label_limit = p - 13;
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if (_right_label_limit < 0) {
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_right_label_limit = 0;
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}
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if (!label_on_left ()) {
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setup_name_display ();
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}
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}
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/***********************************************************************/
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TempoMarker::TempoMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text,
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ARDOUR::TempoSection& temp)
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: Marker (editor, parent, rgba, text, Tempo, 0, false),
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_tempo (temp)
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{
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set_position (_tempo.frame());
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group->Event.connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_tempo_marker_event), mark, this));
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}
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TempoMarker::~TempoMarker ()
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{
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}
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/***********************************************************************/
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MeterMarker::MeterMarker (PublicEditor& editor, ArdourCanvas::Group& parent, guint32 rgba, const string& text,
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ARDOUR::MeterSection& m)
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: Marker (editor, parent, rgba, text, Meter, 0, false),
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_meter (m)
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{
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set_position (_meter.frame());
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group->Event.connect (sigc::bind (sigc::mem_fun (editor, &PublicEditor::canvas_meter_marker_event), mark, this));
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}
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MeterMarker::~MeterMarker ()
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{
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}
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