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.hpp"
35 #include <pv/widgets/colourbutton.hpp>
36 #include <pv/widgets/popup.hpp>
41 const QPen Trace::AxisPen(QColor(128, 128, 128, 64));
42 const int Trace::LabelHitPadding = 2;
44 const QColor Trace::DarkBGColour(235, 235, 235); // Quite light grey
45 const QColor Trace::BrightBGColour(245, 245, 245); // Very light grey
47 Trace::Trace(QString name) :
49 coloured_bg_(true), // Default setting is set in MainWindow::setup_ui()
55 QString Trace::name() const
60 void Trace::set_name(QString name)
65 QColor Trace::colour() const
70 void Trace::set_colour(QColor colour)
75 bgcolour_.setAlpha(20);
78 void Trace::set_coloured_bg(bool state)
83 bool Trace::is_draggable() const
85 const View *const view = owner_->view();
88 QPoint cursor_pos = view->mapFromGlobal(QCursor::pos());
90 // The signal is draggable only in the header area
91 return (cursor_pos.x() <= view->header_size().width());
94 void Trace::select(bool select)
96 // Trace can only be selected if the mouse cursor is in the header area;
97 // as is_draggable() checks the same thing, we re-use it here
98 if (is_draggable() && select)
104 void Trace::paint_label(QPainter &p, const QRect &rect, bool hover)
106 const int y = get_visual_y();
113 const QRectF r = label_rect(rect);
116 const float label_arrow_length = r.height() / 2;
117 const QPointF points[] = {
119 QPointF(r.right() - label_arrow_length, r.top()),
120 QPointF(r.right(), y),
121 QPointF(r.right() - label_arrow_length, r.bottom()),
124 const QPointF highlight_points[] = {
125 QPointF(r.left() + 1, r.top() + 1),
126 QPointF(r.right() - label_arrow_length, r.top() + 1),
127 QPointF(r.right() - 1, y),
128 QPointF(r.right() - label_arrow_length, r.bottom() - 1),
129 QPointF(r.left() + 1, r.bottom() - 1)
133 p.setPen(highlight_pen());
134 p.setBrush(Qt::transparent);
135 p.drawPolygon(points, countof(points));
138 p.setPen(Qt::transparent);
139 p.setBrush(hover ? colour_.lighter() : colour_);
140 p.drawPolygon(points, countof(points));
142 p.setPen(colour_.lighter());
143 p.setBrush(Qt::transparent);
144 p.drawPolygon(highlight_points, countof(highlight_points));
146 p.setPen(colour_.darker());
147 p.setBrush(Qt::transparent);
148 p.drawPolygon(points, countof(points));
151 p.setPen(select_text_colour(colour_));
152 p.setFont(QApplication::font());
153 p.drawText(QRectF(r.x(), r.y(),
154 r.width() - label_arrow_length, r.height()),
155 Qt::AlignCenter | Qt::AlignVCenter, name_);
158 QMenu* Trace::create_context_menu(QWidget *parent)
160 QMenu *const menu = ViewItem::create_context_menu(parent);
165 pv::widgets::Popup* Trace::create_popup(QWidget *parent)
167 using pv::widgets::Popup;
169 popup_ = new Popup(parent);
170 popup_->set_position(parent->mapToGlobal(
171 point(parent->rect())), Popup::Right);
175 connect(popup_, SIGNAL(closed()),
176 this, SLOT(on_popup_closed()));
181 QRectF Trace::label_rect(const QRectF &rect) const
183 using pv::view::View;
185 QFontMetrics m(QApplication::font());
186 const QSize text_size(
187 m.boundingRect(QRect(), 0, name_).width(), m.height());
188 const QSizeF label_size(
189 text_size.width() + LabelPadding.width() * 2,
190 ceilf((text_size.height() + LabelPadding.height() * 2) / 2) * 2);
191 const float half_height = label_size.height() / 2;
193 rect.right() - half_height - label_size.width() - 0.5,
194 get_visual_y() + 0.5f - half_height,
195 label_size.width() + half_height,
196 label_size.height());
199 QRectF Trace::hit_box_rect(const ViewItemPaintParams &pp) const
201 const float h = QFontMetrics(QApplication::font()).height();
202 return QRectF(pp.left(), get_visual_y() - h / 2.0f,
206 void Trace::paint_back(QPainter &p, const ViewItemPaintParams &pp)
209 p.setBrush(bgcolour_);
211 p.setBrush(bgcolour_state_ ? BrightBGColour : DarkBGColour);
213 p.setPen(QPen(Qt::NoPen));
215 const std::pair<int, int> extents = v_extents();
218 const int y = get_visual_y() + extents.first;
219 const int w = pp.right() - pp.left();
220 const int h = extents.second - extents.first;
222 p.drawRect(x, y, w, h);
225 void Trace::paint_axis(QPainter &p, const ViewItemPaintParams &pp, int y)
228 p.drawLine(QPointF(pp.left(), y + 0.5f), QPointF(pp.right(), y + 0.5f));
231 void Trace::add_colour_option(QWidget *parent, QFormLayout *form)
233 using pv::widgets::ColourButton;
235 ColourButton *const colour_button = new ColourButton(
236 TracePalette::Rows, TracePalette::Cols, parent);
237 colour_button->set_palette(TracePalette::Colours);
238 colour_button->set_colour(colour_);
239 connect(colour_button, SIGNAL(selected(const QColor&)),
240 this, SLOT(on_colour_changed(const QColor&)));
242 form->addRow(tr("Colour"), colour_button);
245 void Trace::create_popup_form()
249 // Transfer the layout and the child widgets to a temporary widget
250 // which then goes out of scope destroying the layout and all the child
253 QWidget().setLayout(popup_form_);
255 // Repopulate the popup
256 popup_form_ = new QFormLayout(popup_);
257 popup_->setLayout(popup_form_);
258 populate_popup_form(popup_, popup_form_);
261 void Trace::populate_popup_form(QWidget *parent, QFormLayout *form)
263 QLineEdit *const name_edit = new QLineEdit(parent);
264 name_edit->setText(name_);
265 connect(name_edit, SIGNAL(textChanged(const QString&)),
266 this, SLOT(on_text_changed(const QString&)));
267 form->addRow(tr("Name"), name_edit);
269 add_colour_option(parent, form);
272 void Trace::on_popup_closed()
275 popup_form_ = nullptr;
278 void Trace::on_text_changed(const QString &text)
283 owner_->extents_changed(true, false);
286 void Trace::on_colour_changed(const QColor &colour)
291 owner_->row_item_appearance_changed(true, true);