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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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include <algorithm> | |
22 | ||
23 | #include <extdef.h> | |
24 | ||
25 | #include "timemarker.hpp" | |
26 | ||
27 | #include "view.hpp" | |
28 | ||
29 | #include <QApplication> | |
30 | #include <QFormLayout> | |
31 | #include <QFontMetrics> | |
32 | #include <QPainter> | |
33 | ||
34 | #include <pv/widgets/popup.hpp> | |
35 | ||
36 | using std::max; | |
37 | using std::min; | |
38 | ||
39 | namespace pv { | |
40 | namespace view { | |
41 | ||
42 | const int TimeMarker::ArrowSize = 4; | |
43 | ||
44 | TimeMarker::TimeMarker(View &view, const QColor &colour, double time) : | |
45 | TimeItem(view), | |
46 | colour_(colour), | |
47 | time_(time), | |
48 | value_action_(NULL), | |
49 | value_widget_(NULL), | |
50 | updating_value_widget_(false) | |
51 | { | |
52 | } | |
53 | ||
54 | double TimeMarker::time() const | |
55 | { | |
56 | return time_; | |
57 | } | |
58 | ||
59 | void TimeMarker::set_time(double time) | |
60 | { | |
61 | time_ = time; | |
62 | ||
63 | if (value_widget_) { | |
64 | updating_value_widget_ = true; | |
65 | value_widget_->setValue(time); | |
66 | updating_value_widget_ = false; | |
67 | } | |
68 | ||
69 | view_.time_item_appearance_changed(true, true); | |
70 | } | |
71 | ||
72 | float TimeMarker::get_x() const | |
73 | { | |
74 | return (time_ - view_.offset()) / view_.scale(); | |
75 | } | |
76 | ||
77 | QPoint TimeMarker::point(const QRect &rect) const | |
78 | { | |
79 | return QPoint(get_x(), rect.bottom()); | |
80 | } | |
81 | ||
82 | QRectF TimeMarker::label_rect(const QRectF &rect) const | |
83 | { | |
84 | QFontMetrics m(QApplication::font()); | |
85 | const QSizeF text_size( | |
86 | max(m.boundingRect(get_text()).size().width(), ArrowSize), | |
87 | m.height()); | |
88 | const QSizeF label_size(text_size + LabelPadding * 2); | |
89 | const float top = rect.height() - label_size.height() - | |
90 | TimeMarker::ArrowSize - 0.5f; | |
91 | const float x = get_x(); | |
92 | ||
93 | return QRectF(QPointF(x - label_size.width() / 2, top), label_size); | |
94 | } | |
95 | ||
96 | QRectF TimeMarker::hit_box_rect(const QRectF &rect) const | |
97 | { | |
98 | const float x = get_x(); | |
99 | const float h = QFontMetrics(QApplication::font()).height(); | |
100 | return QRectF(x - h / 2.0f, rect.top(), h, rect.height()); | |
101 | } | |
102 | ||
103 | void TimeMarker::paint_label(QPainter &p, const QRect &rect, bool hover) | |
104 | { | |
105 | if (!enabled()) | |
106 | return; | |
107 | ||
108 | const qreal x = (time_ - view_.offset()) / view_.scale(); | |
109 | const QRectF r(label_rect(rect)); | |
110 | ||
111 | const QPointF points[] = { | |
112 | r.topLeft(), | |
113 | r.bottomLeft(), | |
114 | QPointF(max(r.left(), x - ArrowSize), r.bottom()), | |
115 | QPointF(x, rect.bottom()), | |
116 | QPointF(min(r.right(), x + ArrowSize), r.bottom()), | |
117 | r.bottomRight(), | |
118 | r.topRight() | |
119 | }; | |
120 | ||
121 | const QPointF highlight_points[] = { | |
122 | QPointF(r.left() + 1, r.top() + 1), | |
123 | QPointF(r.left() + 1, r.bottom() - 1), | |
124 | QPointF(max(r.left() + 1, x - ArrowSize), r.bottom() - 1), | |
125 | QPointF(min(max(r.left() + 1, x), r.right() - 1), | |
126 | rect.bottom() - 1), | |
127 | QPointF(min(r.right() - 1, x + ArrowSize), r.bottom() - 1), | |
128 | QPointF(r.right() - 1, r.bottom() - 1), | |
129 | QPointF(r.right() - 1, r.top() + 1), | |
130 | }; | |
131 | ||
132 | if (selected()) { | |
133 | p.setPen(highlight_pen()); | |
134 | p.setBrush(Qt::transparent); | |
135 | p.drawPolygon(points, countof(points)); | |
136 | } | |
137 | ||
138 | p.setPen(Qt::transparent); | |
139 | p.setBrush(hover ? colour_.lighter() : colour_); | |
140 | p.drawPolygon(points, countof(points)); | |
141 | ||
142 | p.setPen(colour_.lighter()); | |
143 | p.setBrush(Qt::transparent); | |
144 | p.drawPolygon(highlight_points, countof(highlight_points)); | |
145 | ||
146 | p.setPen(colour_.darker()); | |
147 | p.setBrush(Qt::transparent); | |
148 | p.drawPolygon(points, countof(points)); | |
149 | ||
150 | p.setPen(select_text_colour(colour_)); | |
151 | p.drawText(r, Qt::AlignCenter | Qt::AlignVCenter, get_text()); | |
152 | } | |
153 | ||
154 | void TimeMarker::paint_fore(QPainter &p, const ViewItemPaintParams &pp) | |
155 | { | |
156 | if (!enabled()) | |
157 | return; | |
158 | ||
159 | const float x = get_x(); | |
160 | p.setPen(colour_.darker()); | |
161 | p.drawLine(QPointF(x, pp.top()), QPointF(x, pp.bottom())); | |
162 | } | |
163 | ||
164 | pv::widgets::Popup* TimeMarker::create_popup(QWidget *parent) | |
165 | { | |
166 | using pv::widgets::Popup; | |
167 | ||
168 | Popup *const popup = new Popup(parent); | |
169 | popup->set_position(parent->mapToGlobal( | |
170 | point(parent->rect())), Popup::Bottom); | |
171 | ||
172 | QFormLayout *const form = new QFormLayout(popup); | |
173 | popup->setLayout(form); | |
174 | ||
175 | value_widget_ = new QDoubleSpinBox(parent); | |
176 | value_widget_->setDecimals(9); | |
177 | value_widget_->setSuffix("s"); | |
178 | value_widget_->setSingleStep(1e-6); | |
179 | value_widget_->setRange(-1.0e9, 1.0e9); | |
180 | value_widget_->setValue(time_); | |
181 | ||
182 | connect(value_widget_, SIGNAL(valueChanged(double)), | |
183 | this, SLOT(on_value_changed(double))); | |
184 | ||
185 | form->addRow(tr("Time"), value_widget_); | |
186 | ||
187 | return popup; | |
188 | } | |
189 | ||
190 | void TimeMarker::on_value_changed(double value) | |
191 | { | |
192 | if (!updating_value_widget_) | |
193 | set_time(value); | |
194 | } | |
195 | ||
196 | } // namespace view | |
197 | } // namespace pv |