2 * This file is part of the PulseView project.
4 * Copyright (C) 2013 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
26 #include <QApplication>
27 #include <QFormLayout>
32 #include "tracepalette.h"
35 #include <pv/widgets/colourbutton.h>
36 #include <pv/widgets/popup.h>
41 const QPen Trace::AxisPen(QColor(128, 128, 128, 64));
42 const int Trace::LabelHitPadding = 2;
44 Trace::Trace(QString name) :
51 QString Trace::name() const
56 void Trace::set_name(QString name)
61 QColor Trace::colour() const
66 void Trace::set_colour(QColor colour)
71 void Trace::paint_label(QPainter &p, int right, bool hover)
73 const int y = get_y();
80 const QRectF r = label_rect(right);
83 const float label_arrow_length = r.height() / 2;
84 const QPointF points[] = {
86 QPointF(r.right() - label_arrow_length, r.top()),
87 QPointF(r.right(), y),
88 QPointF(r.right() - label_arrow_length, r.bottom()),
91 const QPointF highlight_points[] = {
92 QPointF(r.left() + 1, r.top() + 1),
93 QPointF(r.right() - label_arrow_length, r.top() + 1),
94 QPointF(r.right() - 1, y),
95 QPointF(r.right() - label_arrow_length, r.bottom() - 1),
96 QPointF(r.left() + 1, r.bottom() - 1)
100 p.setPen(highlight_pen());
101 p.setBrush(Qt::transparent);
102 p.drawPolygon(points, countof(points));
105 p.setPen(Qt::transparent);
106 p.setBrush(hover ? _colour.lighter() : _colour);
107 p.drawPolygon(points, countof(points));
109 p.setPen(_colour.lighter());
110 p.setBrush(Qt::transparent);
111 p.drawPolygon(highlight_points, countof(highlight_points));
113 p.setPen(_colour.darker());
114 p.setBrush(Qt::transparent);
115 p.drawPolygon(points, countof(points));
118 p.setPen(get_text_colour());
119 p.setFont(QApplication::font());
120 p.drawText(QRectF(r.x(), r.y(),
121 r.width() - label_arrow_length, r.height()),
122 Qt::AlignCenter | Qt::AlignVCenter, _name);
125 QMenu* Trace::create_context_menu(QWidget *parent)
127 QMenu *const menu = SelectableItem::create_context_menu(parent);
132 pv::widgets::Popup* Trace::create_popup(QWidget *parent)
134 using pv::widgets::Popup;
136 _popup = new Popup(parent);
140 connect(_popup, SIGNAL(closed()),
141 this, SLOT(on_popup_closed()));
146 QRectF Trace::label_rect(int right)
148 using pv::view::View;
150 QFontMetrics m(QApplication::font());
151 const QSize text_size(
152 m.boundingRect(QRect(), 0, _name).width(),
153 m.boundingRect(QRect(), 0, "Tg").height());
154 const QSizeF label_size(
155 text_size.width() + View::LabelPadding.width() * 2,
156 ceilf((text_size.height() + View::LabelPadding.height() * 2) / 2) * 2);
157 const float half_height = label_size.height() / 2;
159 right - half_height - label_size.width() - 0.5,
160 get_y() + 0.5f - half_height,
161 label_size.width() + half_height,
162 label_size.height());
165 QColor Trace::get_text_colour() const
167 return (_colour.lightness() > 64) ? Qt::black : Qt::white;
170 void Trace::paint_axis(QPainter &p, int y, int left, int right)
173 p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f));
176 void Trace::add_colour_option(QWidget *parent, QFormLayout *form)
178 using pv::widgets::ColourButton;
180 ColourButton *const colour_button = new ColourButton(
181 TracePalette::Rows, TracePalette::Cols, parent);
182 colour_button->set_palette(TracePalette::Colours);
183 colour_button->set_colour(_colour);
184 connect(colour_button, SIGNAL(selected(const QColor&)),
185 this, SLOT(on_colour_changed(const QColor&)));
187 form->addRow(tr("Colour"), colour_button);
190 void Trace::create_popup_form()
194 // Transfer the layout and the child widgets to a temporary widget
195 // which then goes out of scope destroying the layout and all the child
198 QWidget().setLayout(_popup_form);
200 // Repopulate the popup
201 _popup_form = new QFormLayout(_popup);
202 _popup->setLayout(_popup_form);
203 populate_popup_form(_popup, _popup_form);
206 void Trace::populate_popup_form(QWidget *parent, QFormLayout *form)
208 QLineEdit *const name_edit = new QLineEdit(parent);
209 name_edit->setText(_name);
210 connect(name_edit, SIGNAL(textChanged(const QString&)),
211 this, SLOT(on_text_changed(const QString&)));
212 form->addRow(tr("Name"), name_edit);
214 add_colour_option(parent, form);
217 void Trace::on_popup_closed()
223 void Trace::on_text_changed(const QString &text)
229 void Trace::on_colour_changed(const QColor &colour)