2 * This file is part of the sigrok project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <boost/shared_ptr.hpp>
35 static const QSizeF LabelPadding;
41 QString get_name() const;
44 * Paints the signal into a QGLWidget.
45 * @param widget the QGLWidget to paint into.
46 * @param rect the rectangular area to draw the trace into.
47 * @param scale the scale in seconds per pixel.
48 * @param offset the time to show at the left hand edge of
49 * the view in seconds.
51 virtual void paint(QGLWidget &widget, const QRect &rect,
52 double scale, double offset) = 0;
55 * Paints the signal label into a QGLWidget.
56 * @param p the QPainter to paint into.
57 * @param rect the rectangular area to draw the label into.
59 virtual void paint_label(QPainter &p, const QRect &rect);
64 * Get the colour of the logic signal
66 virtual QColor get_colour() const = 0;
69 * When painting into the rectangle, calculate the y
70 * offset of the zero point.
72 virtual int get_nominal_offset(const QRect &rect) const = 0;