89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
/*
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Copyright (C) 2000 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 <cstdlib>
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#include <cmath>
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#include <libgnomecanvas/libgnomecanvas.h>
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#include "utils.h"
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#include "editor.h"
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using namespace sigc;
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using namespace ARDOUR;
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using namespace PBD;
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using namespace Gtk;
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Editor::Cursor::Cursor (Editor& ed, bool (Editor::*callbck)(GdkEvent*,ArdourCanvas::Item*))
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: editor (ed),
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canvas_item (*editor.cursor_group),
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length(1.0)
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{
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points.push_back(Gnome::Art::Point(-1.0, 0.0)); // first x-coord needs to be a non-normal value
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points.push_back(Gnome::Art::Point(1.0, 1.0));
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canvas_item.property_points() = points;
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canvas_item.property_width_pixels() = 1;
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canvas_item.property_first_arrowhead() = TRUE;
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canvas_item.property_last_arrowhead() = TRUE;
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canvas_item.property_arrow_shape_a() = 11.0;
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canvas_item.property_arrow_shape_b() = 0.0;
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canvas_item.property_arrow_shape_c() = 9.0;
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canvas_item.set_data ("cursor", this);
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canvas_item.signal_event().connect (bind (mem_fun (ed, callbck), &canvas_item));
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current_frame = 1; /* force redraw at 0 */
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}
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Editor::Cursor::~Cursor ()
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{
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}
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void
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Editor::Cursor::set_position (nframes64_t frame)
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{
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double new_pos = editor.frame_to_unit (frame);
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if (new_pos != points.front().get_x()) {
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points.front().set_x (new_pos);
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points.back().set_x (new_pos);
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canvas_item.property_points() = points;
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}
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current_frame = frame;
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}
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void
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Editor::Cursor::set_length (double units)
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{
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length = units;
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points.back().set_y (points.front().get_y() + length);
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canvas_item.property_points() = points;
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}
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void
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Editor::Cursor::set_y_axis (double position)
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{
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points.front().set_y (position);
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points.back().set_y (position + length);
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canvas_item.property_points() = points;
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}
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