]>
Commit | Line | Data |
---|---|---|
ccdd3ef5 | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
ccdd3ef5 JH |
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 | |
efdec55a | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
ccdd3ef5 JH |
18 | */ |
19 | ||
819e2e95 | 20 | #include <extdef.h> |
ca4ec3ea | 21 | |
819e2e95 JH |
22 | #include <QApplication> |
23 | #include <QFontMetrics> | |
2543cd4e | 24 | #include <QMenu> |
819e2e95 JH |
25 | #include <QMouseEvent> |
26 | ||
27 | #include "ruler.hpp" | |
2acdb232 | 28 | #include "view.hpp" |
ccdd3ef5 | 29 | |
819f4c25 | 30 | using namespace Qt; |
f76af637 | 31 | |
6f925ba9 | 32 | using std::function; |
5408524d C |
33 | using std::max; |
34 | using std::min; | |
819e2e95 JH |
35 | using std::shared_ptr; |
36 | using std::vector; | |
37 | ||
ccdd3ef5 | 38 | namespace pv { |
f4e57597 | 39 | namespace views { |
1573bf16 | 40 | namespace trace { |
ccdd3ef5 | 41 | |
3d79f521 | 42 | const float Ruler::RulerHeight = 2.5f; // x Text Height |
ccdd3ef5 | 43 | |
3d79f521 | 44 | const float Ruler::HoverArrowSize = 0.5f; // x Text Height |
b3a7c013 | 45 | |
ccdd3ef5 | 46 | Ruler::Ruler(View &parent) : |
e456e8e1 | 47 | MarginWidget(parent) |
ccdd3ef5 | 48 | { |
b3a7c013 JH |
49 | setMouseTracking(true); |
50 | ||
873e8035 SA |
51 | connect(&view_, SIGNAL(hover_point_changed(QPoint)), |
52 | this, SLOT(hover_point_changed(QPoint))); | |
4b0af0b6 JS |
53 | connect(&view_, SIGNAL(offset_changed()), |
54 | this, SLOT(invalidate_tick_position_cache())); | |
55 | connect(&view_, SIGNAL(scale_changed()), | |
56 | this, SLOT(invalidate_tick_position_cache())); | |
57 | connect(&view_, SIGNAL(tick_prefix_changed()), | |
58 | this, SLOT(invalidate_tick_position_cache())); | |
59 | connect(&view_, SIGNAL(tick_precision_changed()), | |
60 | this, SLOT(invalidate_tick_position_cache())); | |
61 | connect(&view_, SIGNAL(tick_period_changed()), | |
62 | this, SLOT(invalidate_tick_position_cache())); | |
63 | connect(&view_, SIGNAL(time_unit_changed()), | |
64 | this, SLOT(invalidate_tick_position_cache())); | |
ccdd3ef5 JH |
65 | } |
66 | ||
a6c1726e JH |
67 | QSize Ruler::sizeHint() const |
68 | { | |
249229ec JH |
69 | const int text_height = calculate_text_height(); |
70 | return QSize(0, RulerHeight * text_height); | |
a6c1726e JH |
71 | } |
72 | ||
819e2e95 JH |
73 | QSize Ruler::extended_size_hint() const |
74 | { | |
f5b833c6 | 75 | QRectF max_rect; |
6f925ba9 | 76 | vector< shared_ptr<TimeItem> > items(view_.time_items()); |
f5b833c6 JH |
77 | for (auto &i : items) |
78 | max_rect = max_rect.united(i->label_rect(QRect())); | |
79 | return QSize(0, sizeHint().height() - max_rect.top() / 2 + | |
80 | ViewItem::HighlightRadius); | |
819e2e95 JH |
81 | } |
82 | ||
3ccf0f7f JS |
83 | QString Ruler::format_time_with_distance( |
84 | const pv::util::Timestamp& distance, | |
85 | const pv::util::Timestamp& t, | |
86 | pv::util::SIPrefix prefix, | |
87 | pv::util::TimeUnit unit, | |
88 | unsigned precision, | |
89 | bool sign) | |
90 | { | |
91 | const unsigned limit = 60; | |
92 | ||
93 | if (t.is_zero()) | |
94 | return "0"; | |
95 | ||
96 | // If we have to use samples then we have no alternative formats | |
97 | if (unit == pv::util::TimeUnit::Samples) | |
98 | return pv::util::format_time_si_adjusted(t, prefix, precision, "sa", sign); | |
99 | ||
100 | // View zoomed way out -> low precision (0), big distance (>=60s) | |
101 | // -> DD:HH:MM | |
102 | if ((precision == 0) && (distance >= limit)) | |
103 | return pv::util::format_time_minutes(t, 0, sign); | |
104 | ||
105 | // View in "normal" range -> medium precision, medium step size | |
106 | // -> HH:MM:SS.mmm... or xxxx (si unit) if less than limit seconds | |
107 | // View zoomed way in -> high precision (>3), low step size (<1s) | |
108 | // -> HH:MM:SS.mmm... or xxxx (si unit) if less than limit seconds | |
109 | if (abs(t) < limit) | |
110 | return pv::util::format_time_si_adjusted(t, prefix, precision, "s", sign); | |
111 | else | |
112 | return pv::util::format_time_minutes(t, precision, sign); | |
113 | } | |
114 | ||
2543cd4e SA |
115 | pv::util::Timestamp Ruler::get_time_from_x_pos(uint32_t x) |
116 | { | |
117 | return view_.ruler_offset() + ((double)x + 0.5) * view_.scale(); | |
118 | } | |
119 | ||
120 | void Ruler::contextMenuEvent(QContextMenuEvent *event) | |
121 | { | |
122 | context_menu_x_pos_ = event->pos().x(); | |
123 | ||
124 | QMenu *const menu = new QMenu(this); | |
125 | ||
126 | QAction *const create_marker = new QAction(tr("Create marker here"), this); | |
127 | connect(create_marker, SIGNAL(triggered()), this, SLOT(on_createMarker())); | |
128 | menu->addAction(create_marker); | |
129 | ||
130 | menu->popup(event->globalPos()); | |
131 | } | |
132 | ||
133 | void Ruler::resizeEvent(QResizeEvent*) | |
134 | { | |
135 | // the tick calculation depends on the width of this widget | |
136 | invalidate_tick_position_cache(); | |
137 | } | |
138 | ||
3e124bee JH |
139 | vector< shared_ptr<ViewItem> > Ruler::items() |
140 | { | |
141 | const vector< shared_ptr<TimeItem> > time_items(view_.time_items()); | |
142 | return vector< shared_ptr<ViewItem> >( | |
143 | time_items.begin(), time_items.end()); | |
144 | } | |
145 | ||
6871ee9f | 146 | shared_ptr<ViewItem> Ruler::get_mouse_over_item(const QPoint &pt) |
25a0d47c JH |
147 | { |
148 | const vector< shared_ptr<TimeItem> > items(view_.time_items()); | |
149 | for (auto i = items.rbegin(); i != items.rend(); i++) | |
150 | if ((*i)->enabled() && (*i)->label_rect(rect()).contains(pt)) | |
151 | return *i; | |
152 | return nullptr; | |
153 | } | |
154 | ||
2543cd4e SA |
155 | void Ruler::mouseDoubleClickEvent(QMouseEvent *event) |
156 | { | |
157 | view_.add_flag(get_time_from_x_pos(event->x())); | |
158 | } | |
159 | ||
e314eca4 | 160 | void Ruler::paintEvent(QPaintEvent*) |
ccdd3ef5 | 161 | { |
4b0af0b6 | 162 | if (!tick_position_cache_) { |
2ad82c2e | 163 | auto ffunc = [this](const pv::util::Timestamp& t) { |
3ccf0f7f JS |
164 | return format_time_with_distance( |
165 | this->view_.tick_period(), | |
4b0af0b6 JS |
166 | t, |
167 | this->view_.tick_prefix(), | |
168 | this->view_.time_unit(), | |
169 | this->view_.tick_precision()); | |
170 | }; | |
171 | ||
7c6cbdda | 172 | tick_position_cache_ = calculate_tick_positions( |
4b0af0b6 | 173 | view_.tick_period(), |
ffc00fdd | 174 | view_.ruler_offset(), |
4b0af0b6 JS |
175 | view_.scale(), |
176 | width(), | |
4a076157 | 177 | view_.minor_tick_count(), |
7c6cbdda | 178 | ffunc); |
4b0af0b6 | 179 | } |
ccdd3ef5 | 180 | |
4b0af0b6 | 181 | const int ValueMargin = 3; |
f260e3bf | 182 | |
e456e8e1 | 183 | const int text_height = calculate_text_height(); |
249229ec | 184 | const int ruler_height = RulerHeight * text_height; |
e456e8e1 | 185 | const int major_tick_y1 = text_height + ValueMargin * 2; |
249229ec | 186 | const int minor_tick_y1 = (major_tick_y1 + ruler_height) / 2; |
f260e3bf | 187 | |
4b0af0b6 | 188 | QPainter p(this); |
ccdd3ef5 | 189 | |
4b0af0b6 JS |
190 | // Draw the tick marks |
191 | p.setPen(palette().color(foregroundRole())); | |
ccdd3ef5 | 192 | |
4b0af0b6 | 193 | for (const auto& tick: tick_position_cache_->major) { |
5408524d C |
194 | const int leftedge = 0; |
195 | const int rightedge = width(); | |
196 | const int x_tick = tick.first; | |
197 | if ((x_tick > leftedge) && (x_tick < rightedge)) { | |
198 | const int x_left_bound = QFontMetrics(font()).width(tick.second) / 2; | |
199 | const int x_right_bound = rightedge - x_left_bound; | |
200 | const int x_legend = min(max(x_tick, x_left_bound), x_right_bound); | |
201 | p.drawText(x_legend, ValueMargin, 0, text_height, | |
4b0af0b6 | 202 | AlignCenter | AlignTop | TextDontClip, tick.second); |
5408524d | 203 | p.drawLine(QPointF(x_tick, major_tick_y1), |
4b0af0b6 | 204 | QPointF(tick.first, ruler_height)); |
5408524d | 205 | } |
4b0af0b6 | 206 | } |
ccdd3ef5 | 207 | |
4b0af0b6 JS |
208 | for (const auto& tick: tick_position_cache_->minor) { |
209 | p.drawLine(QPointF(tick, minor_tick_y1), | |
210 | QPointF(tick, ruler_height)); | |
211 | } | |
ccdd3ef5 | 212 | |
b3a7c013 | 213 | // Draw the hover mark |
249229ec | 214 | draw_hover_mark(p, text_height); |
819e2e95 | 215 | |
97f71253 JS |
216 | p.setRenderHint(QPainter::Antialiasing); |
217 | ||
819e2e95 JH |
218 | // The cursor labels are not drawn with the arrows exactly on the |
219 | // bottom line of the widget, because then the selection shadow | |
220 | // would be clipped away. | |
09d5df11 | 221 | const QRect r = rect().adjusted(0, 0, 0, -ViewItem::HighlightRadius); |
819e2e95 JH |
222 | |
223 | // Draw the items | |
224 | const vector< shared_ptr<TimeItem> > items(view_.time_items()); | |
49028d6c | 225 | for (auto &i : items) { |
803cdac4 | 226 | const bool highlight = !item_dragging_ && |
49028d6c JH |
227 | i->label_rect(r).contains(mouse_point_); |
228 | i->paint_label(p, r, highlight); | |
229 | } | |
819e2e95 JH |
230 | } |
231 | ||
2543cd4e SA |
232 | void Ruler::draw_hover_mark(QPainter &p, int text_height) |
233 | { | |
234 | const int x = view_.hover_point().x(); | |
235 | ||
236 | if (x == -1) | |
237 | return; | |
238 | ||
239 | p.setPen(QPen(Qt::NoPen)); | |
240 | p.setBrush(QBrush(palette().color(foregroundRole()))); | |
241 | ||
242 | const int b = RulerHeight * text_height; | |
243 | const float hover_arrow_size = HoverArrowSize * text_height; | |
244 | const QPointF points[] = { | |
245 | QPointF(x, b), | |
246 | QPointF(x - hover_arrow_size, b - hover_arrow_size), | |
247 | QPointF(x + hover_arrow_size, b - hover_arrow_size) | |
248 | }; | |
249 | p.drawPolygon(points, countof(points)); | |
250 | } | |
251 | ||
252 | int Ruler::calculate_text_height() const | |
253 | { | |
254 | return QFontMetrics(font()).ascent(); | |
255 | } | |
256 | ||
257 | TickPositions Ruler::calculate_tick_positions( | |
c677193d | 258 | const pv::util::Timestamp& major_period, |
4b0af0b6 JS |
259 | const pv::util::Timestamp& offset, |
260 | const double scale, | |
261 | const int width, | |
4a076157 | 262 | const unsigned int minor_tick_count, |
6f925ba9 | 263 | function<QString(const pv::util::Timestamp&)> format_function) |
4b0af0b6 JS |
264 | { |
265 | TickPositions tp; | |
266 | ||
4a076157 | 267 | const pv::util::Timestamp minor_period = major_period / minor_tick_count; |
4b0af0b6 JS |
268 | const pv::util::Timestamp first_major_division = floor(offset / major_period); |
269 | const pv::util::Timestamp first_minor_division = ceil(offset / minor_period); | |
270 | const pv::util::Timestamp t0 = first_major_division * major_period; | |
271 | ||
272 | int division = (round(first_minor_division - | |
4a076157 | 273 | first_major_division * minor_tick_count)).convert_to<int>() - 1; |
4b0af0b6 JS |
274 | |
275 | double x; | |
276 | ||
277 | do { | |
c677193d | 278 | pv::util::Timestamp t = t0 + division * minor_period; |
4b0af0b6 JS |
279 | x = ((t - offset) / scale).convert_to<double>(); |
280 | ||
4a076157 | 281 | if (division % minor_tick_count == 0) { |
2d141937 | 282 | // Recalculate 't' without using 'minor_period' which is a fraction |
4a076157 | 283 | t = t0 + division / minor_tick_count * major_period; |
4b0af0b6 JS |
284 | tp.major.emplace_back(x, format_function(t)); |
285 | } else { | |
286 | tp.minor.emplace_back(x); | |
287 | } | |
288 | ||
289 | division++; | |
290 | } while (x < width); | |
291 | ||
292 | return tp; | |
293 | } | |
294 | ||
873e8035 | 295 | void Ruler::hover_point_changed(const QPoint &hp) |
b3a7c013 | 296 | { |
873e8035 SA |
297 | (void)hp; |
298 | ||
b3a7c013 JH |
299 | update(); |
300 | } | |
301 | ||
4b0af0b6 JS |
302 | void Ruler::invalidate_tick_position_cache() |
303 | { | |
304 | tick_position_cache_ = boost::none; | |
305 | } | |
306 | ||
2543cd4e | 307 | void Ruler::on_createMarker() |
4b0af0b6 | 308 | { |
2543cd4e | 309 | view_.add_flag(get_time_from_x_pos(context_menu_x_pos_)); |
4b0af0b6 JS |
310 | } |
311 | ||
1573bf16 | 312 | } // namespace trace |
f4e57597 | 313 | } // namespace views |
ccdd3ef5 | 314 | } // namespace pv |