2 * This file is part of the PulseView 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 #ifndef PULSEVIEW_PV_SIGNAL_H
22 #define PULSEVIEW_PV_SIGNAL_H
24 #include <boost/shared_ptr.hpp>
32 #include <QWidgetAction>
36 #include <libsigrok/libsigrok.h>
38 #include "selectableitem.h"
50 class Signal : public SelectableItem
55 static const int LabelHitPadding;
57 static const QPen SignalAxisPen;
60 Signal(pv::SigSession &session, const sr_probe *const probe);
64 * Gets the name of this signal.
66 QString get_name() const;
69 * Sets the name of the signal.
71 void set_name(QString name);
74 * Get the colour of the signal.
76 QColor get_colour() const;
79 * Set the colour of the signal.
81 void set_colour(QColor colour);
84 * Gets the vertical layout offset of this signal.
86 int get_v_offset() const;
89 * Sets the vertical layout offset of this signal.
91 void set_v_offset(int v_offset);
94 * Paints the signal with a QPainter
95 * @param p the QPainter to paint into.
96 * @param y the y-coordinate to draw the signal at
97 * @param left the x-coordinate of the left edge of the signal
98 * @param right the x-coordinate of the right edge of the signal
99 * @param scale the scale in seconds per pixel.
100 * @param offset the time to show at the left hand edge of
101 * the view in seconds.
103 virtual void paint(QPainter &p, int y, int left, int right,
104 double scale, double offset) = 0;
107 * Paints the signal label into a QGLWidget.
108 * @param p the QPainter to paint into.
109 * @param y the y-coordinate of the signal.
110 * @param right the x-coordinate of the right edge of the header
112 * @param hover true if the label is being hovered over by the mouse.
114 virtual void paint_label(QPainter &p, int y, int right,
118 * Determines if a point is in the header label rect.
119 * @param y the y-coordinate of the signal.
120 * @param left the x-coordinate of the left edge of the header
122 * @param right the x-coordinate of the right edge of the header
124 * @param point the point to test.
126 bool pt_in_label_rect(int y, int left, int right,
127 const QPoint &point);
132 * Paints a zero axis across the viewport.
133 * @param p the QPainter to paint into.
134 * @param y the y-offset of the axis.
135 * @param left the x-coordinate of the left edge of the view.
136 * @param right the x-coordinate of the right edge of the view.
138 void paint_axis(QPainter &p, int y, int left, int right);
143 * Computes an caches the size of the label text.
145 void compute_text_size(QPainter &p);
148 * Computes the outline rectangle of a label.
149 * @param p the QPainter to lay out text with.
150 * @param y the y-coordinate of the signal.
151 * @param right the x-coordinate of the right edge of the header
153 * @return Returns the rectangle of the signal label.
155 QRectF get_label_rect(int y, int right);
158 void on_text_changed(const QString &text);
164 pv::SigSession &_session;
165 const sr_probe *const _probe;
173 QWidgetAction _name_action;
174 QComboBox _name_widget;
175 bool _updating_name_widget;
181 #endif // PULSEVIEW_PV_SIGNAL_H