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