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();
73 GlobalSettings::remove_change_handler(this);
76 shared_ptr<data::SignalBase> Trace::base() const
81 void Trace::set_segment_display_mode(SegmentDisplayMode mode)
83 segment_display_mode_ = mode;
86 owner_->row_item_appearance_changed(true, true);
89 void Trace::on_setting_changed(const QString &key, const QVariant &value)
91 if (key == GlobalSettings::Key_View_ShowHoverMarker)
92 show_hover_marker_ = value.toBool();
95 void Trace::paint_label(QPainter &p, const QRect &rect, bool hover)
97 const int y = get_visual_y();
99 p.setBrush(base_->color());
104 const QRectF r = label_rect(rect);
106 // When selected, move the arrow to the left so that the border can show
107 const QPointF offs = (selected()) ? QPointF(-2, 0) : QPointF(0, 0);
110 const float label_arrow_length = r.height() / 2;
113 offs + QPointF(r.right() - label_arrow_length, r.top()),
114 offs + QPointF(r.right(), y),
115 offs + QPointF(r.right() - label_arrow_length, r.bottom()),
116 offs + r.bottomLeft()
118 QPointF highlight_points[] = {
119 offs + QPointF(r.left() + 1, r.top() + 1),
120 offs + QPointF(r.right() - label_arrow_length, r.top() + 1),
121 offs + QPointF(r.right() - 1, y),
122 offs + QPointF(r.right() - label_arrow_length, r.bottom() - 1),
123 offs + QPointF(r.left() + 1, r.bottom() - 1)
127 p.setPen(highlight_pen());
128 p.setBrush(Qt::transparent);
129 p.drawPolygon(points, countof(points));
132 p.setPen(Qt::transparent);
133 p.setBrush(hover ? base_->color().lighter() : base_->color());
134 p.drawPolygon(points, countof(points));
136 p.setPen(base_->color().lighter());
137 p.setBrush(Qt::transparent);
138 p.drawPolygon(highlight_points, countof(highlight_points));
140 p.setPen(base_->color().darker());
141 p.setBrush(Qt::transparent);
142 p.drawPolygon(points, countof(points));
145 p.setPen(select_text_color(base_->color()));
146 p.setFont(QApplication::font());
147 p.drawText(QRectF(r.x(), r.y(),
148 r.width() - label_arrow_length, r.height()),
149 Qt::AlignCenter | Qt::AlignVCenter, base_->name());
152 QMenu* Trace::create_context_menu(QWidget *parent)
154 QMenu *const menu = ViewItem::create_context_menu(parent);
159 pv::widgets::Popup* Trace::create_popup(QWidget *parent)
161 using pv::widgets::Popup;
163 popup_ = new Popup(parent);
164 popup_->set_position(parent->mapToGlobal(
165 drag_point(parent->rect())), Popup::Right);
169 connect(popup_, SIGNAL(closed()), this, SLOT(on_popup_closed()));
174 QRectF Trace::label_rect(const QRectF &rect) const
176 QFontMetrics m(QApplication::font());
177 const QSize text_size(
178 m.boundingRect(QRect(), 0, base_->name()).width(), m.height());
179 const QSizeF label_size(
180 text_size.width() + LabelPadding.width() * 2,
181 ceilf((text_size.height() + LabelPadding.height() * 2) / 2) * 2);
182 const float half_height = label_size.height() / 2;
184 rect.right() - half_height - label_size.width() - 0.5,
185 get_visual_y() + 0.5f - half_height,
186 label_size.width() + half_height,
187 label_size.height());
190 QRectF Trace::hit_box_rect(const ViewItemPaintParams &pp) const
192 pair<int, int> extents = v_extents();
193 const int top = pp.top() + get_visual_y() + extents.first;
194 const int height = extents.second - extents.first;
195 return QRectF(pp.left(), top, pp.width(), height);
198 void Trace::set_current_segment(const int segment)
200 current_segment_ = segment;
203 int Trace::get_current_segment() const
205 return current_segment_;
208 void Trace::hover_point_changed(const QPoint &hp)
213 owner_->row_item_appearance_changed(false, true);
216 void Trace::paint_back(QPainter &p, ViewItemPaintParams &pp)
218 const View *view = owner_->view();
221 if (view->colored_bg())
222 p.setBrush(base_->bgcolor());
224 p.setBrush(pp.next_bg_color_state() ? BrightGrayBGColor : DarkGrayBGColor);
226 p.setPen(QPen(Qt::NoPen));
228 const pair<int, int> extents = v_extents();
229 p.drawRect(pp.left(), get_visual_y() + extents.first,
230 pp.width(), extents.second - extents.first);
233 void Trace::paint_axis(QPainter &p, ViewItemPaintParams &pp, int y)
235 p.setRenderHint(QPainter::Antialiasing, false);
238 p.drawLine(QPointF(pp.left(), y), QPointF(pp.right(), y));
240 p.setRenderHint(QPainter::Antialiasing, true);
243 void Trace::add_color_option(QWidget *parent, QFormLayout *form)
245 using pv::widgets::ColorButton;
247 ColorButton *const color_button = new ColorButton(
248 TracePalette::Rows, TracePalette::Cols, parent);
249 color_button->set_palette(TracePalette::Colors);
250 color_button->set_color(base_->color());
251 connect(color_button, SIGNAL(selected(const QColor&)),
252 this, SLOT(on_coloredit_changed(const QColor&)));
254 form->addRow(tr("Color"), color_button);
257 void Trace::paint_hover_marker(QPainter &p)
259 const View *view = owner_->view();
262 const int x = view->hover_point().x();
267 p.setPen(QPen(QColor(Qt::lightGray)));
269 const pair<int, int> extents = v_extents();
271 p.setRenderHint(QPainter::Antialiasing, false);
272 p.drawLine(x, get_visual_y() + extents.first,
273 x, get_visual_y() + extents.second);
274 p.setRenderHint(QPainter::Antialiasing, true);
277 void Trace::create_popup_form()
281 // Transfer the layout and the child widgets to a temporary widget
282 // which we delete after the event was handled. This way, the layout
283 // and all widgets contained therein are deleted after the event was
284 // handled, leaving the parent popup_ time to handle the change.
286 QWidget *suicidal = new QWidget();
287 suicidal->setLayout(popup_form_);
288 suicidal->deleteLater();
291 // Repopulate the popup
292 popup_form_ = new QFormLayout(popup_);
293 popup_->setLayout(popup_form_);
294 populate_popup_form(popup_, popup_form_);
297 void Trace::populate_popup_form(QWidget *parent, QFormLayout *form)
299 QLineEdit *const name_edit = new QLineEdit(parent);
300 name_edit->setText(base_->name());
301 connect(name_edit, SIGNAL(textChanged(const QString&)),
302 this, SLOT(on_nameedit_changed(const QString&)));
303 form->addRow(tr("Name"), name_edit);
305 add_color_option(parent, form);
308 void Trace::on_name_changed(const QString &text)
310 /* This event handler is called by SignalBase when the name was changed there */
314 owner_->extents_changed(true, false);
315 owner_->row_item_appearance_changed(true, false);
319 void Trace::on_color_changed(const QColor &color)
321 /* This event handler is called by SignalBase when the color was changed there */
325 owner_->row_item_appearance_changed(true, true);
328 void Trace::on_popup_closed()
331 popup_form_ = nullptr;
334 void Trace::on_nameedit_changed(const QString &name)
336 /* This event handler notifies SignalBase that the name changed */
337 base_->set_name(name);
340 void Trace::on_coloredit_changed(const QColor &color)
342 /* This event handler notifies SignalBase that the color changed */
343 base_->set_color(color);