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) :
53 QString Trace::get_name() const
58 void Trace::set_name(QString name)
63 QColor Trace::get_colour() const
68 void Trace::set_colour(QColor colour)
73 int Trace::get_v_offset() const
78 void Trace::set_v_offset(int v_offset)
83 void Trace::set_view(pv::view::View *view)
89 void Trace::paint_back(QPainter &p, int left, int right)
96 void Trace::paint_mid(QPainter &p, int left, int right)
103 void Trace::paint_fore(QPainter &p, int left, int right)
110 void Trace::paint_label(QPainter &p, int right, bool hover)
112 const int y = get_y();
119 const QColor colour = get_colour();
121 const QRectF r = label_rect(right);
124 const float label_arrow_length = r.height() / 2;
125 const QPointF points[] = {
127 QPointF(r.right() - label_arrow_length, r.top()),
128 QPointF(r.right(), y),
129 QPointF(r.right() - label_arrow_length, r.bottom()),
132 const QPointF highlight_points[] = {
133 QPointF(r.left() + 1, r.top() + 1),
134 QPointF(r.right() - label_arrow_length, r.top() + 1),
135 QPointF(r.right() - 1, y),
136 QPointF(r.right() - label_arrow_length, r.bottom() - 1),
137 QPointF(r.left() + 1, r.bottom() - 1)
141 p.setPen(highlight_pen());
142 p.setBrush(Qt::transparent);
143 p.drawPolygon(points, countof(points));
146 p.setPen(Qt::transparent);
147 p.setBrush(hover ? colour.lighter() : colour);
148 p.drawPolygon(points, countof(points));
150 p.setPen(colour.lighter());
151 p.setBrush(Qt::transparent);
152 p.drawPolygon(highlight_points, countof(highlight_points));
154 p.setPen(colour.darker());
155 p.setBrush(Qt::transparent);
156 p.drawPolygon(points, countof(points));
159 p.setPen(get_text_colour());
160 p.setFont(QApplication::font());
161 p.drawText(QRectF(r.x(), r.y(),
162 r.width() - label_arrow_length, r.height()),
163 Qt::AlignCenter | Qt::AlignVCenter, _name);
166 QMenu* Trace::create_context_menu(QWidget *parent)
168 QMenu *const menu = SelectableItem::create_context_menu(parent);
173 pv::widgets::Popup* Trace::create_popup(QWidget *parent)
175 using pv::widgets::Popup;
177 _popup = new Popup(parent);
181 connect(_popup, SIGNAL(closed()),
182 this, SLOT(on_popup_closed()));
187 int Trace::get_y() const
190 return _v_offset - _view->v_offset();
193 QRectF Trace::label_rect(int right)
195 using pv::view::View;
197 QFontMetrics m(QApplication::font());
198 const QSize text_size(
199 m.boundingRect(QRect(), 0, _name).width(),
200 m.boundingRect(QRect(), 0, "Tg").height());
201 const QSizeF label_size(
202 text_size.width() + View::LabelPadding.width() * 2,
203 ceilf((text_size.height() + View::LabelPadding.height() * 2) / 2) * 2);
204 const float half_height = label_size.height() / 2;
206 right - half_height - label_size.width() - 0.5,
207 get_y() + 0.5f - half_height,
208 label_size.width() + half_height,
209 label_size.height());
212 void Trace::hover_point_changed()
216 QColor Trace::get_text_colour() const
218 return (_colour.lightness() > 64) ? Qt::black : Qt::white;
221 void Trace::paint_axis(QPainter &p, int y, int left, int right)
224 p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f));
227 void Trace::add_colour_option(QWidget *parent, QFormLayout *form)
229 using pv::widgets::ColourButton;
231 ColourButton *const colour_button = new ColourButton(
232 TracePalette::Rows, TracePalette::Cols, parent);
233 colour_button->set_palette(TracePalette::Colours);
234 colour_button->set_colour(_colour);
235 connect(colour_button, SIGNAL(selected(const QColor&)),
236 this, SLOT(on_colour_changed(const QColor&)));
238 form->addRow(tr("Colour"), colour_button);
241 void Trace::create_popup_form()
245 // Transfer the layout and the child widgets to a temporary widget
246 // which then goes out of scope destroying the layout and all the child
249 QWidget().setLayout(_popup_form);
251 // Repopulate the popup
252 _popup_form = new QFormLayout(_popup);
253 _popup->setLayout(_popup_form);
254 populate_popup_form(_popup, _popup_form);
257 void Trace::populate_popup_form(QWidget *parent, QFormLayout *form)
259 QLineEdit *const name_edit = new QLineEdit(parent);
260 name_edit->setText(_name);
261 connect(name_edit, SIGNAL(textChanged(const QString&)),
262 this, SLOT(on_text_changed(const QString&)));
263 form->addRow(tr("Name"), name_edit);
265 add_colour_option(parent, form);
268 void Trace::on_popup_closed()
274 void Trace::on_text_changed(const QString &text)
280 void Trace::on_colour_changed(const QColor &colour)