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, see <http://www.gnu.org/licenses/>.
25 #include <QApplication>
26 #include <QFormLayout>
31 #include "tracepalette.hpp"
34 #include "pv/globalsettings.hpp"
35 #include "pv/widgets/colorbutton.hpp"
36 #include "pv/widgets/popup.hpp"
39 using std::shared_ptr;
45 const QPen Trace::AxisPen(QColor(0, 0, 0, 30 * 256 / 100));
46 const int Trace::LabelHitPadding = 2;
48 const QColor Trace::BrightGrayBGColor = QColor(0, 0, 0, 10 * 255 / 100);
49 const QColor Trace::DarkGrayBGColor = QColor(0, 0, 0, 15 * 255 / 100);
51 Trace::Trace(shared_ptr<data::SignalBase> channel) :
54 segment_display_mode_(ShowLastSegmentOnly), // Will be overwritten by View
59 connect(channel.get(), SIGNAL(name_changed(const QString&)),
60 this, SLOT(on_name_changed(const QString&)));
61 connect(channel.get(), SIGNAL(color_changed(const QColor&)),
62 this, SLOT(on_color_changed(const QColor&)));
64 GlobalSettings::add_change_handler(this);
66 GlobalSettings settings;
68 settings.value(GlobalSettings::Key_View_ShowHoverMarker).toBool();
71 shared_ptr<data::SignalBase> Trace::base() const
76 void Trace::set_segment_display_mode(SegmentDisplayMode mode)
78 segment_display_mode_ = mode;
81 owner_->row_item_appearance_changed(true, true);
84 void Trace::on_setting_changed(const QString &key, const QVariant &value)
86 if (key == GlobalSettings::Key_View_ShowHoverMarker)
87 show_hover_marker_ = value.toBool();
90 void Trace::paint_label(QPainter &p, const QRect &rect, bool hover)
92 const int y = get_visual_y();
94 p.setBrush(base_->color());
99 const QRectF r = label_rect(rect);
101 // When selected, move the arrow to the left so that the border can show
102 const QPointF offs = (selected()) ? QPointF(-2, 0) : QPointF(0, 0);
105 const float label_arrow_length = r.height() / 2;
108 offs + QPointF(r.right() - label_arrow_length, r.top()),
109 offs + QPointF(r.right(), y),
110 offs + QPointF(r.right() - label_arrow_length, r.bottom()),
111 offs + r.bottomLeft()
113 QPointF highlight_points[] = {
114 offs + QPointF(r.left() + 1, r.top() + 1),
115 offs + QPointF(r.right() - label_arrow_length, r.top() + 1),
116 offs + QPointF(r.right() - 1, y),
117 offs + QPointF(r.right() - label_arrow_length, r.bottom() - 1),
118 offs + QPointF(r.left() + 1, r.bottom() - 1)
122 p.setPen(highlight_pen());
123 p.setBrush(Qt::transparent);
124 p.drawPolygon(points, countof(points));
127 p.setPen(Qt::transparent);
128 p.setBrush(hover ? base_->color().lighter() : base_->color());
129 p.drawPolygon(points, countof(points));
131 p.setPen(base_->color().lighter());
132 p.setBrush(Qt::transparent);
133 p.drawPolygon(highlight_points, countof(highlight_points));
135 p.setPen(base_->color().darker());
136 p.setBrush(Qt::transparent);
137 p.drawPolygon(points, countof(points));
140 p.setPen(select_text_color(base_->color()));
141 p.setFont(QApplication::font());
142 p.drawText(QRectF(r.x(), r.y(),
143 r.width() - label_arrow_length, r.height()),
144 Qt::AlignCenter | Qt::AlignVCenter, base_->name());
147 QMenu* Trace::create_context_menu(QWidget *parent)
149 QMenu *const menu = ViewItem::create_context_menu(parent);
154 pv::widgets::Popup* Trace::create_popup(QWidget *parent)
156 using pv::widgets::Popup;
158 popup_ = new Popup(parent);
159 popup_->set_position(parent->mapToGlobal(
160 drag_point(parent->rect())), Popup::Right);
164 connect(popup_, SIGNAL(closed()), this, SLOT(on_popup_closed()));
169 QRectF Trace::label_rect(const QRectF &rect) const
171 QFontMetrics m(QApplication::font());
172 const QSize text_size(
173 m.boundingRect(QRect(), 0, base_->name()).width(), m.height());
174 const QSizeF label_size(
175 text_size.width() + LabelPadding.width() * 2,
176 ceilf((text_size.height() + LabelPadding.height() * 2) / 2) * 2);
177 const float half_height = label_size.height() / 2;
179 rect.right() - half_height - label_size.width() - 0.5,
180 get_visual_y() + 0.5f - half_height,
181 label_size.width() + half_height,
182 label_size.height());
185 void Trace::set_current_segment(const int segment)
187 current_segment_ = segment;
190 int Trace::get_current_segment() const
192 return current_segment_;
195 void Trace::hover_point_changed(const QPoint &hp)
200 owner_->row_item_appearance_changed(false, true);
203 void Trace::paint_back(QPainter &p, ViewItemPaintParams &pp)
205 const View *view = owner_->view();
208 if (view->colored_bg())
209 p.setBrush(base_->bgcolor());
211 p.setBrush(pp.next_bg_color_state() ? BrightGrayBGColor : DarkGrayBGColor);
213 p.setPen(QPen(Qt::NoPen));
215 const pair<int, int> extents = v_extents();
216 p.drawRect(pp.left(), get_visual_y() + extents.first,
217 pp.width(), extents.second - extents.first);
220 void Trace::paint_axis(QPainter &p, ViewItemPaintParams &pp, int y)
222 p.setRenderHint(QPainter::Antialiasing, false);
225 p.drawLine(QPointF(pp.left(), y), QPointF(pp.right(), y));
227 p.setRenderHint(QPainter::Antialiasing, true);
230 void Trace::add_color_option(QWidget *parent, QFormLayout *form)
232 using pv::widgets::ColorButton;
234 ColorButton *const color_button = new ColorButton(
235 TracePalette::Rows, TracePalette::Cols, parent);
236 color_button->set_palette(TracePalette::Colors);
237 color_button->set_color(base_->color());
238 connect(color_button, SIGNAL(selected(const QColor&)),
239 this, SLOT(on_coloredit_changed(const QColor&)));
241 form->addRow(tr("Color"), color_button);
244 void Trace::paint_hover_marker(QPainter &p)
246 const View *view = owner_->view();
249 const int x = view->hover_point().x();
254 p.setPen(QPen(QColor(Qt::lightGray)));
256 const pair<int, int> extents = v_extents();
258 p.setRenderHint(QPainter::Antialiasing, false);
259 p.drawLine(x, get_visual_y() + extents.first,
260 x, get_visual_y() + extents.second);
261 p.setRenderHint(QPainter::Antialiasing, true);
264 void Trace::create_popup_form()
268 // Transfer the layout and the child widgets to a temporary widget
269 // which we delete after the event was handled. This way, the layout
270 // and all widgets contained therein are deleted after the event was
271 // handled, leaving the parent popup_ time to handle the change.
273 QWidget *suicidal = new QWidget();
274 suicidal->setLayout(popup_form_);
275 suicidal->deleteLater();
278 // Repopulate the popup
279 popup_form_ = new QFormLayout(popup_);
280 popup_->setLayout(popup_form_);
281 populate_popup_form(popup_, popup_form_);
284 void Trace::populate_popup_form(QWidget *parent, QFormLayout *form)
286 QLineEdit *const name_edit = new QLineEdit(parent);
287 name_edit->setText(base_->name());
288 connect(name_edit, SIGNAL(textChanged(const QString&)),
289 this, SLOT(on_nameedit_changed(const QString&)));
290 form->addRow(tr("Name"), name_edit);
292 add_color_option(parent, form);
295 void Trace::on_name_changed(const QString &text)
297 /* This event handler is called by SignalBase when the name was changed there */
301 owner_->extents_changed(true, false);
302 owner_->row_item_appearance_changed(true, false);
306 void Trace::on_color_changed(const QColor &color)
308 /* This event handler is called by SignalBase when the color was changed there */
312 owner_->row_item_appearance_changed(true, true);
315 void Trace::on_popup_closed()
318 popup_form_ = nullptr;
321 void Trace::on_nameedit_changed(const QString &name)
323 /* This event handler notifies SignalBase that the name changed */
324 base_->set_name(name);
327 void Trace::on_coloredit_changed(const QColor &color)
329 /* This event handler notifies SignalBase that the color changed */
330 base_->set_color(color);