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b42d25c4 JH |
1 | /* |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 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 | ||
2acdb232 | 21 | #include "cursorpair.hpp" |
b42d25c4 | 22 | |
2acdb232 JH |
23 | #include "view.hpp" |
24 | #include "pv/util.hpp" | |
b42d25c4 | 25 | |
f9abf97e | 26 | #include <cassert> |
0ba172cf JH |
27 | #include <algorithm> |
28 | ||
819f4c25 JH |
29 | using std::max; |
30 | using std::make_pair; | |
31 | using std::min; | |
f9abf97e | 32 | using std::shared_ptr; |
819f4c25 | 33 | using std::pair; |
0ba172cf | 34 | |
b42d25c4 JH |
35 | namespace pv { |
36 | namespace view { | |
37 | ||
5139748b | 38 | const int CursorPair::DeltaPadding = 8; |
ccee9230 | 39 | const QColor CursorPair::ViewportFillColour(220, 231, 243); |
5139748b | 40 | |
8debe10d | 41 | CursorPair::CursorPair(View &view) : |
5a0192d4 | 42 | TimeItem(view), |
8dbbc7f0 | 43 | first_(new Cursor(view, 0.0)), |
5a0192d4 | 44 | second_(new Cursor(view, 1.0)) |
b42d25c4 JH |
45 | { |
46 | } | |
47 | ||
5a0192d4 JH |
48 | bool CursorPair::enabled() const |
49 | { | |
50 | return view_.cursors_shown(); | |
51 | } | |
52 | ||
58864c5c | 53 | shared_ptr<Cursor> CursorPair::first() const |
b42d25c4 | 54 | { |
8dbbc7f0 | 55 | return first_; |
b42d25c4 JH |
56 | } |
57 | ||
58864c5c | 58 | shared_ptr<Cursor> CursorPair::second() const |
b42d25c4 | 59 | { |
8dbbc7f0 | 60 | return second_; |
b42d25c4 JH |
61 | } |
62 | ||
3b9c4a0d JH |
63 | void CursorPair::set_time(double time) { |
64 | const double delta = second_->time() - first_->time(); | |
65 | first_->set_time(time); | |
66 | second_->set_time(time + delta); | |
67 | } | |
68 | ||
5165bb34 JH |
69 | float CursorPair::get_x() const |
70 | { | |
71 | return (first_->get_x() + second_->get_x()) / 2.0f; | |
72 | } | |
73 | ||
be717066 | 74 | QPoint CursorPair::point(const QRect &rect) const |
5a0192d4 | 75 | { |
be717066 | 76 | return first_->point(rect); |
5a0192d4 JH |
77 | } |
78 | ||
79 | pv::widgets::Popup* CursorPair::create_popup(QWidget *parent) | |
80 | { | |
81 | (void)parent; | |
82 | return nullptr; | |
83 | } | |
84 | ||
689dea92 | 85 | QRectF CursorPair::label_rect(const QRectF &rect) const |
5139748b | 86 | { |
3fed1f31 | 87 | const QSizeF label_size(text_size_ + LabelPadding * 2); |
5139748b JH |
88 | const pair<float, float> offsets(get_cursor_offsets()); |
89 | const pair<float, float> normal_offsets( | |
90 | (offsets.first < offsets.second) ? offsets : | |
91 | make_pair(offsets.second, offsets.first)); | |
92 | ||
93 | const float height = label_size.height(); | |
94 | const float left = max(normal_offsets.first + DeltaPadding, -height); | |
95 | const float right = min(normal_offsets.second - DeltaPadding, | |
96 | (float)rect.width() + height); | |
97 | ||
98 | return QRectF(left, rect.height() - label_size.height() - | |
6abffa97 | 99 | TimeMarker::ArrowSize - 0.5f, |
5139748b JH |
100 | right - left, height); |
101 | } | |
102 | ||
49028d6c | 103 | void CursorPair::paint_label(QPainter &p, const QRect &rect, bool hover) |
332afa74 | 104 | { |
8dbbc7f0 JH |
105 | assert(first_); |
106 | assert(second_); | |
58864c5c | 107 | |
9a377493 JH |
108 | if (!enabled()) |
109 | return; | |
110 | ||
f106fc3a JH |
111 | const QColor text_colour = |
112 | ViewItem::select_text_colour(Cursor::FillColour); | |
361c560e | 113 | |
f106fc3a | 114 | p.setPen(text_colour); |
32045253 | 115 | compute_text_size(p); |
689dea92 | 116 | QRectF delta_rect(label_rect(rect)); |
5139748b JH |
117 | |
118 | const int radius = delta_rect.height() / 2; | |
119 | const QRectF text_rect(delta_rect.intersected( | |
120 | rect).adjusted(radius, 0, -radius, 0)); | |
8dbbc7f0 | 121 | if(text_rect.width() >= text_size_.width()) |
5139748b JH |
122 | { |
123 | const int highlight_radius = delta_rect.height() / 2 - 2; | |
124 | ||
e9f909b8 JH |
125 | if (selected()) { |
126 | p.setBrush(Qt::transparent); | |
127 | p.setPen(highlight_pen()); | |
128 | p.drawRoundedRect(delta_rect, radius, radius); | |
129 | } | |
130 | ||
49028d6c JH |
131 | p.setBrush(hover ? Cursor::FillColour.lighter() : |
132 | Cursor::FillColour); | |
4fabd61a | 133 | p.setPen(Cursor::FillColour.darker()); |
5139748b JH |
134 | p.drawRoundedRect(delta_rect, radius, radius); |
135 | ||
136 | delta_rect.adjust(1, 1, -1, -1); | |
4fabd61a | 137 | p.setPen(Cursor::FillColour.lighter()); |
5139748b JH |
138 | p.drawRoundedRect(delta_rect, highlight_radius, highlight_radius); |
139 | ||
f106fc3a | 140 | p.setPen(text_colour); |
5139748b | 141 | p.drawText(text_rect, Qt::AlignCenter | Qt::AlignVCenter, |
32045253 | 142 | format_string()); |
5139748b | 143 | } |
332afa74 JH |
144 | } |
145 | ||
beb897c6 JH |
146 | void CursorPair::paint_back(QPainter &p, const ViewItemPaintParams &pp) { |
147 | if (!enabled()) | |
148 | return; | |
149 | ||
0ba172cf | 150 | p.setPen(Qt::NoPen); |
ccee9230 | 151 | p.setBrush(QBrush(ViewportFillColour)); |
0ba172cf | 152 | |
199441e4 JH |
153 | const pair<float, float> offsets(get_cursor_offsets()); |
154 | const int l = (int)max(min( | |
155 | offsets.first, offsets.second), 0.0f); | |
156 | const int r = (int)min(max( | |
beb897c6 | 157 | offsets.first, offsets.second), (float)pp.width()); |
58864c5c | 158 | |
beb897c6 | 159 | p.drawRect(l, pp.top(), r - l, pp.height()); |
0ba172cf JH |
160 | } |
161 | ||
32045253 JH |
162 | QString CursorPair::format_string() |
163 | { | |
164 | const unsigned int prefix = view_.tick_prefix(); | |
165 | const double delta = second_->time() - first_->time(); | |
166 | return QString("%1 / %2"). | |
167 | arg(util::format_time(delta, prefix, 2)). | |
168 | arg(util::format_si_value(1.0 / fabs(delta), "Hz", -1, 4)); | |
169 | } | |
170 | ||
171 | void CursorPair::compute_text_size(QPainter &p) | |
5139748b | 172 | { |
8dbbc7f0 JH |
173 | assert(first_); |
174 | assert(second_); | |
58864c5c | 175 | |
32045253 | 176 | text_size_ = p.boundingRect(QRectF(), 0, format_string()).size(); |
5139748b JH |
177 | } |
178 | ||
199441e4 JH |
179 | pair<float, float> CursorPair::get_cursor_offsets() const |
180 | { | |
8dbbc7f0 JH |
181 | assert(first_); |
182 | assert(second_); | |
58864c5c | 183 | |
199441e4 | 184 | return pair<float, float>( |
8dbbc7f0 JH |
185 | (first_->time() - view_.offset()) / view_.scale(), |
186 | (second_->time() - view_.offset()) / view_.scale()); | |
199441e4 JH |
187 | } |
188 | ||
b42d25c4 JH |
189 | } // namespace view |
190 | } // namespace pv |