Accept new position on enter press in cursor popups
[pulseview.git] / pv / views / trace / timemarker.cpp
1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
5  *
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.
10  *
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.
15  *
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/>.
18  */
19
20 #include <algorithm>
21 #include <cmath>
22
23 #include <extdef.h>
24
25 #include "timemarker.hpp"
26
27 #include "pv/widgets/timestampspinbox.hpp"
28 #include "ruler.hpp"
29 #include "view.hpp"
30
31 #include <QApplication>
32 #include <QFontMetrics>
33 #include <QFormLayout>
34 #include <QPainter>
35
36 #include <pv/widgets/popup.hpp>
37
38 using std::max;
39 using std::min;
40
41 namespace pv {
42 namespace views {
43 namespace trace {
44
45 const int TimeMarker::ArrowSize = 4;
46
47 TimeMarker::TimeMarker(
48         View &view, const QColor &color, const pv::util::Timestamp& time) :
49         TimeItem(view),
50         color_(color),
51         time_(time),
52         value_action_(nullptr),
53         value_widget_(nullptr)
54 {
55 }
56
57 const pv::util::Timestamp& TimeMarker::time() const
58 {
59         return time_;
60 }
61
62 void TimeMarker::set_time(const pv::util::Timestamp& time)
63 {
64         time_ = time;
65
66         if (value_widget_) {
67                 QSignalBlocker blocker(value_widget_);
68                 value_widget_->setValue(view_.ruler()->get_ruler_time_from_absolute_time(time));
69         }
70
71         view_.time_item_appearance_changed(true, true);
72 }
73
74 float TimeMarker::get_x() const
75 {
76         // Use roundf() from cmath, std::roundf() causes Android issues (see #945).
77         return roundf(((time_ - view_.offset()) / view_.scale()).convert_to<float>()) + 0.5f;
78 }
79
80 QPoint TimeMarker::drag_point(const QRect &rect) const
81 {
82         (void)rect;
83
84         return QPoint(get_x(), view_.mapFromGlobal(QCursor::pos()).y());
85 }
86
87 QRectF TimeMarker::label_rect(const QRectF &rect) const
88 {
89         QFontMetrics m(QApplication::font());
90         const QSizeF text_size(
91                 max(m.boundingRect(get_text()).size().width(), ArrowSize),
92                 m.height());
93         const QSizeF label_size(text_size + LabelPadding * 2);
94         const float top = rect.height() - label_size.height() -
95                 TimeMarker::ArrowSize - 0.5f;
96         const float x = get_x();
97
98         return QRectF(QPointF(x - label_size.width() / 2, top), label_size);
99 }
100
101 QRectF TimeMarker::hit_box_rect(const ViewItemPaintParams &pp) const
102 {
103         const float x = get_x();
104         const float h = QFontMetrics(QApplication::font()).height();
105         return QRectF(x - h / 2.0f, pp.top(), h, pp.height());
106 }
107
108 void TimeMarker::paint_label(QPainter &p, const QRect &rect, bool hover)
109 {
110         if (!enabled())
111                 return;
112
113         const qreal x = get_x();
114         const QRectF r(label_rect(rect));
115
116         const QPointF points[] = {
117                 r.topLeft(),
118                 r.bottomLeft(),
119                 QPointF(max(r.left(), x - ArrowSize), r.bottom()),
120                 QPointF(x, rect.bottom()),
121                 QPointF(min(r.right(), x + ArrowSize), r.bottom()),
122                 r.bottomRight(),
123                 r.topRight()
124         };
125
126         const QPointF highlight_points[] = {
127                 QPointF(r.left() + 1, r.top() + 1),
128                 QPointF(r.left() + 1, r.bottom() - 1),
129                 QPointF(max(r.left() + 1, x - ArrowSize), r.bottom() - 1),
130                 QPointF(min(max(r.left() + 1, x), r.right() - 1),
131                         rect.bottom() - 1),
132                 QPointF(min(r.right() - 1, x + ArrowSize), r.bottom() - 1),
133                 QPointF(r.right() - 1, r.bottom() - 1),
134                 QPointF(r.right() - 1, r.top() + 1),
135         };
136
137         if (selected()) {
138                 p.setPen(highlight_pen());
139                 p.setBrush(Qt::transparent);
140                 p.drawPolygon(points, countof(points));
141         }
142
143         p.setPen(Qt::transparent);
144         p.setBrush(hover ? color_.lighter() : color_);
145         p.drawPolygon(points, countof(points));
146
147         p.setPen(color_.lighter());
148         p.setBrush(Qt::transparent);
149         p.drawPolygon(highlight_points, countof(highlight_points));
150
151         p.setPen(color_.darker());
152         p.setBrush(Qt::transparent);
153         p.drawPolygon(points, countof(points));
154
155         p.setPen(select_text_color(color_));
156         p.drawText(r, Qt::AlignCenter | Qt::AlignVCenter, get_text());
157 }
158
159 void TimeMarker::paint_fore(QPainter &p, ViewItemPaintParams &pp)
160 {
161         if (!enabled())
162                 return;
163
164         const float x = get_x();
165         p.setPen(color_.darker());
166         p.drawLine(QPointF(x, pp.top()), QPointF(x, pp.bottom()));
167 }
168
169 pv::widgets::Popup* TimeMarker::create_popup(QWidget *parent)
170 {
171         using pv::widgets::Popup;
172
173         Popup *const popup = new Popup(parent);
174         popup->set_position(parent->mapToGlobal(
175                 drag_point(parent->rect())), Popup::Bottom);
176
177         QFormLayout *const form = new QFormLayout(popup);
178         popup->setLayout(form);
179
180         value_widget_ = new pv::widgets::TimestampSpinBox(parent);
181         value_widget_->setValue(view_.ruler()->get_ruler_time_from_absolute_time(time_));
182
183         connect(value_widget_, SIGNAL(valueChanged(const pv::util::Timestamp&)),
184                 this, SLOT(on_value_changed(const pv::util::Timestamp&)));
185
186         form->addRow(tr("Time"), value_widget_);
187
188         return popup;
189 }
190
191 void TimeMarker::on_value_changed(const pv::util::Timestamp& value)
192 {
193         set_time(view_.ruler()->get_absolute_time_from_ruler_time(value));
194 }
195
196 } // namespace trace
197 } // namespace views
198 } // namespace pv