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) :
52 QString Trace::get_name() const
57 void Trace::set_name(QString name)
62 QColor Trace::get_colour() const
67 void Trace::set_colour(QColor colour)
72 int Trace::get_v_offset() const
77 void Trace::set_v_offset(int v_offset)
82 void Trace::set_view(pv::view::View *view)
88 void Trace::paint_back(QPainter &p, int left, int right)
95 void Trace::paint_mid(QPainter &p, int left, int right)
102 void Trace::paint_fore(QPainter &p, int left, int right)
109 void Trace::paint_label(QPainter &p, int right, bool hover)
112 const int y = _v_offset - _view->v_offset();
119 const QColor colour = get_colour();
121 const QRectF label_rect = get_label_rect(right);
124 const QPointF points[] = {
125 label_rect.topLeft(),
126 label_rect.topRight(),
128 label_rect.bottomRight(),
129 label_rect.bottomLeft()
132 const QPointF highlight_points[] = {
133 QPointF(label_rect.left() + 1, label_rect.top() + 1),
134 QPointF(label_rect.right(), label_rect.top() + 1),
135 QPointF(right - 1, y),
136 QPointF(label_rect.right(), label_rect.bottom() - 1),
137 QPointF(label_rect.left() + 1, label_rect.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(label_rect, Qt::AlignCenter | Qt::AlignVCenter, _name);
164 bool Trace::pt_in_label_rect(int left, int right, const QPoint &point)
168 const QRectF label = get_label_rect(right);
169 return enabled() && QRectF(
170 QPointF(label.left() - LabelHitPadding,
171 label.top() - LabelHitPadding),
172 QPointF(right, label.bottom() + LabelHitPadding)
176 QMenu* Trace::create_context_menu(QWidget *parent)
178 QMenu *const menu = SelectableItem::create_context_menu(parent);
183 pv::widgets::Popup* Trace::create_popup(QWidget *parent)
185 using pv::widgets::Popup;
187 _popup = new Popup(parent);
191 connect(_popup, SIGNAL(closed()),
192 this, SLOT(on_popup_closed()));
197 int Trace::get_y() const
199 return _v_offset - _view->v_offset();
202 QRectF Trace::get_label_rect(int right)
204 using pv::view::View;
208 QFontMetrics m(QApplication::font());
209 const QSize text_size(
210 m.boundingRect(QRect(), 0, _name).width(),
211 m.boundingRect(QRect(), 0, "Tg").height());
212 const QSizeF label_size(
213 text_size.width() + View::LabelPadding.width() * 2,
214 ceilf((text_size.height() + View::LabelPadding.height() * 2) / 2) * 2);
215 const float label_arrow_length = label_size.height() / 2;
217 right - label_arrow_length - label_size.width() - 0.5,
218 get_y() + 0.5f - label_size.height() / 2,
219 label_size.width(), label_size.height());
222 QColor Trace::get_text_colour() const
224 return (_colour.lightness() > 64) ? Qt::black : Qt::white;
227 void Trace::paint_axis(QPainter &p, int y, int left, int right)
230 p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f));
233 void Trace::add_colour_option(QWidget *parent, QFormLayout *form)
235 using pv::widgets::ColourButton;
237 ColourButton *const colour_button = new ColourButton(
238 TracePalette::Rows, TracePalette::Cols, parent);
239 colour_button->set_palette(TracePalette::Colours);
240 colour_button->set_colour(_colour);
241 connect(colour_button, SIGNAL(selected(const QColor&)),
242 this, SLOT(on_colour_changed(const QColor&)));
244 form->addRow(tr("Colour"), colour_button);
247 void Trace::create_popup_form()
251 // Transfer the layout and the child widgets to a temporary widget
252 // which then goes out of scope destroying the layout and all the child
255 QWidget().setLayout(_popup_form);
257 // Repopulate the popup
258 _popup_form = new QFormLayout(_popup);
259 _popup->setLayout(_popup_form);
260 populate_popup_form(_popup, _popup_form);
263 void Trace::populate_popup_form(QWidget *parent, QFormLayout *form)
265 QLineEdit *const name_edit = new QLineEdit(parent);
266 name_edit->setText(_name);
267 connect(name_edit, SIGNAL(textChanged(const QString&)),
268 this, SLOT(on_text_changed(const QString&)));
269 form->addRow(tr("Name"), name_edit);
271 add_colour_option(parent, form);
274 void Trace::on_popup_closed()
280 void Trace::on_text_changed(const QString &text)
286 void Trace::on_colour_changed(const QColor &colour)