DecodeTrace: Rename get_sample_range() to get_view_sample_range()
[pulseview.git] / pv / views / trace / standardbar.cpp
1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2016 Soeren Apel <soeren@apelpie.net>
5  * Copyright (C) 2012-2015 Joel Holdsworth <joel@airwebreathe.org.uk>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, see <http://www.gnu.org/licenses/>.
19  */
20
21 #include <QAction>
22 #include <QMessageBox>
23
24 #include "standardbar.hpp"
25 #include "view.hpp"
26
27 #include <pv/mainwindow.hpp>
28
29 using pv::views::trace::View;
30
31 namespace pv {
32 namespace views {
33
34 namespace trace {
35
36 StandardBar::StandardBar(Session &session, QWidget *parent,
37         View *view, bool add_default_widgets) :
38         QToolBar("Standard Trace View Toolbar", parent),
39         session_(session),
40         view_(view),
41         action_view_zoom_in_(new QAction(this)),
42         action_view_zoom_out_(new QAction(this)),
43         action_view_zoom_fit_(new QAction(this)),
44         action_view_show_cursors_(new QAction(this)),
45         segment_display_mode_selector_(new QToolButton(this)),
46         action_sdm_last_(new QAction(this)),
47         action_sdm_last_complete_(new QAction(this)),
48         action_sdm_single_(new QAction(this)),
49         segment_selector_(new QSpinBox(this))
50 {
51         setObjectName(QString::fromUtf8("StandardBar"));
52
53         // Actions
54         action_view_zoom_in_->setText(tr("Zoom &In"));
55         action_view_zoom_in_->setIcon(QIcon::fromTheme("zoom-in",
56                 QIcon(":/icons/zoom-in.png")));
57         // simply using Qt::Key_Plus shows no + in the menu
58         action_view_zoom_in_->setShortcut(QKeySequence::ZoomIn);
59         connect(action_view_zoom_in_, SIGNAL(triggered(bool)),
60                 this, SLOT(on_actionViewZoomIn_triggered()));
61
62         action_view_zoom_out_->setText(tr("Zoom &Out"));
63         action_view_zoom_out_->setIcon(QIcon::fromTheme("zoom-out",
64                 QIcon(":/icons/zoom-out.png")));
65         action_view_zoom_out_->setShortcut(QKeySequence::ZoomOut);
66         connect(action_view_zoom_out_, SIGNAL(triggered(bool)),
67                 this, SLOT(on_actionViewZoomOut_triggered()));
68
69         action_view_zoom_fit_->setCheckable(true);
70         action_view_zoom_fit_->setText(tr("Zoom to &Fit"));
71         action_view_zoom_fit_->setIcon(QIcon::fromTheme("zoom-fit-best",
72                 QIcon(":/icons/zoom-fit-best.png")));
73         action_view_zoom_fit_->setShortcut(QKeySequence(Qt::Key_F));
74         connect(action_view_zoom_fit_, SIGNAL(triggered(bool)),
75                 this, SLOT(on_actionViewZoomFit_triggered(bool)));
76
77         action_view_show_cursors_->setCheckable(true);
78         action_view_show_cursors_->setIcon(QIcon(":/icons/show-cursors.svg"));
79         action_view_show_cursors_->setShortcut(QKeySequence(Qt::Key_C));
80         connect(action_view_show_cursors_, SIGNAL(triggered(bool)),
81                 this, SLOT(on_actionViewShowCursors_triggered()));
82         action_view_show_cursors_->setText(tr("Show &Cursors"));
83
84         action_sdm_last_->setIcon(QIcon(":/icons/view-displaymode-last_segment.svg"));
85         action_sdm_last_->setText(tr("Display last segment only"));
86         connect(action_sdm_last_, SIGNAL(triggered(bool)),
87                 this, SLOT(on_actionSDMLast_triggered()));
88
89         action_sdm_last_complete_->setIcon(QIcon(":/icons/view-displaymode-last_complete_segment.svg"));
90         action_sdm_last_complete_->setText(tr("Display last complete segment only"));
91         connect(action_sdm_last_complete_, SIGNAL(triggered(bool)),
92                 this, SLOT(on_actionSDMLastComplete_triggered()));
93
94         action_sdm_single_->setIcon(QIcon(":/icons/view-displaymode-single_segment.svg"));
95         action_sdm_single_->setText(tr("Display a single segment"));
96         connect(action_view_show_cursors_, SIGNAL(triggered(bool)),
97                 this, SLOT(on_actionSDMSingle_triggered()));
98
99         segment_display_mode_selector_->addAction(action_sdm_last_);
100         segment_display_mode_selector_->addAction(action_sdm_last_complete_);
101         segment_display_mode_selector_->addAction(action_sdm_single_);
102         segment_display_mode_selector_->setPopupMode(QToolButton::InstantPopup);
103         segment_display_mode_selector_->hide();
104
105         segment_selector_->setMinimum(1);
106         segment_selector_->hide();
107
108         connect(&session_, SIGNAL(new_segment(int)),
109                 this, SLOT(on_new_segment(int)));
110
111         connect(&session_, SIGNAL(segment_completed(int)),
112                 view_, SLOT(on_segment_completed(int)));
113
114         connect(segment_selector_, SIGNAL(valueChanged(int)),
115                 this, SLOT(on_segment_selected(int)));
116         connect(view_, SIGNAL(segment_changed(int)),
117                 this, SLOT(on_segment_changed(int)));
118
119         connect(this, SIGNAL(segment_selected(int)),
120                 view_, SLOT(on_segment_changed(int)));
121
122         connect(view_, SIGNAL(segment_display_mode_changed(int, bool)),
123                 this, SLOT(on_segment_display_mode_changed(int, bool)));
124
125         connect(view_, SIGNAL(always_zoom_to_fit_changed(bool)),
126                 this, SLOT(on_always_zoom_to_fit_changed(bool)));
127
128         connect(view_, SIGNAL(cursor_state_changed(bool)),
129                 this, SLOT(on_cursor_state_changed(bool)));
130
131         if (add_default_widgets)
132                 add_toolbar_widgets();
133 }
134
135 Session &StandardBar::session() const
136 {
137         return session_;
138 }
139
140 void StandardBar::add_toolbar_widgets()
141 {
142         // Setup the toolbar
143         addAction(action_view_zoom_in_);
144         addAction(action_view_zoom_out_);
145         addAction(action_view_zoom_fit_);
146         addSeparator();
147         addAction(action_view_show_cursors_);
148         multi_segment_actions_.push_back(addSeparator());
149         multi_segment_actions_.push_back(addWidget(segment_display_mode_selector_));
150         multi_segment_actions_.push_back(addWidget(segment_selector_));
151         addSeparator();
152
153         // Hide the multi-segment UI until we know that there are multiple segments
154         show_multi_segment_ui(false);
155 }
156
157 void StandardBar::show_multi_segment_ui(const bool state)
158 {
159         for (QAction* action : multi_segment_actions_)
160                 action->setVisible(state);
161
162         on_segment_display_mode_changed(view_->segment_display_mode(),
163                 view_->segment_is_selectable());
164 }
165
166 QAction* StandardBar::action_view_zoom_in() const
167 {
168         return action_view_zoom_in_;
169 }
170
171 QAction* StandardBar::action_view_zoom_out() const
172 {
173         return action_view_zoom_out_;
174 }
175
176 QAction* StandardBar::action_view_zoom_fit() const
177 {
178         return action_view_zoom_fit_;
179 }
180
181 QAction* StandardBar::action_view_show_cursors() const
182 {
183         return action_view_show_cursors_;
184 }
185
186 void StandardBar::on_actionViewZoomIn_triggered()
187 {
188         view_->zoom(1);
189 }
190
191 void StandardBar::on_actionViewZoomOut_triggered()
192 {
193         view_->zoom(-1);
194 }
195
196 void StandardBar::on_actionViewZoomFit_triggered(bool checked)
197 {
198         view_->zoom_fit(checked);
199 }
200
201 void StandardBar::on_actionViewShowCursors_triggered()
202 {
203         const bool show = action_view_show_cursors_->isChecked();
204
205         if (show)
206                 view_->centre_cursors();
207
208         view_->show_cursors(show);
209 }
210
211 void StandardBar::on_actionSDMLast_triggered()
212 {
213         view_->set_segment_display_mode(Trace::ShowLastSegmentOnly);
214 }
215
216 void StandardBar::on_actionSDMLastComplete_triggered()
217 {
218         view_->set_segment_display_mode(Trace::ShowLastCompleteSegmentOnly);
219 }
220
221 void StandardBar::on_actionSDMSingle_triggered()
222 {
223         view_->set_segment_display_mode(Trace::ShowSingleSegmentOnly);
224 }
225
226 void StandardBar::on_always_zoom_to_fit_changed(bool state)
227 {
228         action_view_zoom_fit_->setChecked(state);
229 }
230
231 void StandardBar::on_new_segment(int new_segment_id)
232 {
233         if (new_segment_id > 0) {
234                 show_multi_segment_ui(true);
235                 segment_selector_->setMaximum(new_segment_id + 1);
236         } else
237                 show_multi_segment_ui(false);
238 }
239
240 void StandardBar::on_segment_changed(int segment_id)
241 {
242         // We need to adjust the value by 1 because internally, segments
243         // start at 0 while they start with 1 for the spinbox
244         const uint32_t ui_segment_id = segment_id + 1;
245
246         // This is called when the current segment was changed
247         // by other parts of the UI, e.g. the view itself
248
249         // Make sure our value isn't limited by a too low maximum
250         // Note: this can happen if on_segment_changed() is called before
251         // on_new_segment()
252         if ((uint32_t)segment_selector_->maximum() < ui_segment_id)
253                 segment_selector_->setMaximum(ui_segment_id);
254
255         segment_selector_->setValue(ui_segment_id);
256 }
257
258 void StandardBar::on_segment_selected(int ui_segment_id)
259 {
260         // We need to adjust the value by 1 because internally, segments
261         // start at 0 while they start with 1 for the spinbox
262         const uint32_t segment_id = ui_segment_id - 1;
263
264         // This is called when the user selected a segment using the spin box
265         // or when the value of the spinbox was assigned a new value. Since we
266         // only care about the former, we filter out the latter:
267         if (segment_id == view_->current_segment())
268                 return;
269
270         // No matter which segment display mode we were in, we now show a single segment
271         if (view_->segment_display_mode() != Trace::ShowSingleSegmentOnly)
272                 on_actionSDMSingle_triggered();
273
274         segment_selected(segment_id);
275 }
276
277 void StandardBar::on_segment_display_mode_changed(int mode, bool segment_selectable)
278 {
279         segment_selector_->setReadOnly(!segment_selectable);
280
281         switch ((Trace::SegmentDisplayMode)mode) {
282         case Trace::ShowLastSegmentOnly:
283                 segment_display_mode_selector_->setDefaultAction(action_sdm_last_);
284                 break;
285         case Trace::ShowLastCompleteSegmentOnly:
286                 segment_display_mode_selector_->setDefaultAction(action_sdm_last_complete_);
287                 break;
288         case Trace::ShowSingleSegmentOnly:
289                 segment_display_mode_selector_->setDefaultAction(action_sdm_single_);
290                 break;
291         default:
292                 break;
293         }
294 }
295
296 void StandardBar::on_cursor_state_changed(bool show)
297 {
298         action_view_show_cursors_->setChecked(show);
299 }
300
301 } // namespace trace
302 } // namespace views
303 } // namespace pv