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_zoom_one_to_one_(new QAction(this)),
  45         action_view_show_cursors_(new QAction(this)),
  46         segment_display_mode_selector_(new QToolButton(this)),
  47         action_sdm_last_(new QAction(this)),
  48         action_sdm_last_complete_(new QAction(this)),
  49         action_sdm_single_(new QAction(this)),
  50         segment_selector_(new QSpinBox(this))
  51 {
  52         setObjectName(QString::fromUtf8("StandardBar"));
  53
  54         // Actions
  55         action_view_zoom_in_->setText(tr("Zoom &In"));
  56         action_view_zoom_in_->setIcon(QIcon::fromTheme("zoom-in",
  57                 QIcon(":/icons/zoom-in.png")));
  58         // simply using Qt::Key_Plus shows no + in the menu
  59         action_view_zoom_in_->setShortcut(QKeySequence::ZoomIn);
  60         connect(action_view_zoom_in_, SIGNAL(triggered(bool)),
  61                 this, SLOT(on_actionViewZoomIn_triggered()));
  62
  63         action_view_zoom_out_->setText(tr("Zoom &Out"));
  64         action_view_zoom_out_->setIcon(QIcon::fromTheme("zoom-out",
  65                 QIcon(":/icons/zoom-out.png")));
  66         action_view_zoom_out_->setShortcut(QKeySequence::ZoomOut);
  67         connect(action_view_zoom_out_, SIGNAL(triggered(bool)),
  68                 this, SLOT(on_actionViewZoomOut_triggered()));
  69
  70         action_view_zoom_fit_->setCheckable(true);
  71         action_view_zoom_fit_->setText(tr("Zoom to &Fit"));
  72         action_view_zoom_fit_->setIcon(QIcon::fromTheme("zoom-fit-best",
  73                 QIcon(":/icons/zoom-fit-best.png")));
  74         action_view_zoom_fit_->setShortcut(QKeySequence(Qt::Key_F));
  75         connect(action_view_zoom_fit_, SIGNAL(triggered(bool)),
  76                 this, SLOT(on_actionViewZoomFit_triggered(bool)));
  77
  78         action_view_zoom_one_to_one_->setText(tr("Zoom to O&ne-to-One"));
  79         action_view_zoom_one_to_one_->setIcon(QIcon::fromTheme("zoom-original",
  80                 QIcon(":/icons/zoom-original.png")));
  81         action_view_zoom_one_to_one_->setShortcut(QKeySequence(Qt::Key_O));
  82         connect(action_view_zoom_one_to_one_, SIGNAL(triggered(bool)),
  83                 this, SLOT(on_actionViewZoomOneToOne_triggered()));
  84
  85         action_view_show_cursors_->setCheckable(true);
  86         action_view_show_cursors_->setIcon(QIcon(":/icons/show-cursors.svg"));
  87         action_view_show_cursors_->setShortcut(QKeySequence(Qt::Key_C));
  88         connect(action_view_show_cursors_, SIGNAL(triggered(bool)),
  89                 this, SLOT(on_actionViewShowCursors_triggered()));
  90         action_view_show_cursors_->setText(tr("Show &Cursors"));
  91
  92         action_sdm_last_->setIcon(QIcon(":/icons/view-displaymode-last_segment.svg"));
  93         action_sdm_last_->setText(tr("Display last segment only"));
  94         connect(action_sdm_last_, SIGNAL(triggered(bool)),
  95                 this, SLOT(on_actionSDMLast_triggered()));
  96
  97         action_sdm_last_complete_->setIcon(QIcon(":/icons/view-displaymode-last_complete_segment.svg"));
  98         action_sdm_last_complete_->setText(tr("Display last complete segment only"));
  99         connect(action_sdm_last_complete_, SIGNAL(triggered(bool)),
 100                 this, SLOT(on_actionSDMLastComplete_triggered()));
 101
 102         action_sdm_single_->setIcon(QIcon(":/icons/view-displaymode-single_segment.svg"));
 103         action_sdm_single_->setText(tr("Display a single segment"));
 104         connect(action_view_show_cursors_, SIGNAL(triggered(bool)),
 105                 this, SLOT(on_actionSDMSingle_triggered()));
 106
 107         segment_display_mode_selector_->addAction(action_sdm_last_);
 108         segment_display_mode_selector_->addAction(action_sdm_last_complete_);
 109         segment_display_mode_selector_->addAction(action_sdm_single_);
 110         segment_display_mode_selector_->setPopupMode(QToolButton::InstantPopup);
 111         segment_display_mode_selector_->hide();
 112
 113         segment_selector_->setMinimum(1);
 114         segment_selector_->hide();
 115
 116         connect(&session_, SIGNAL(new_segment(int)),
 117                 this, SLOT(on_new_segment(int)));
 118
 119         connect(&session_, SIGNAL(segment_completed(int)),
 120                 view_, SLOT(on_segment_completed(int)));
 121
 122         connect(segment_selector_, SIGNAL(valueChanged(int)),
 123                 this, SLOT(on_segment_selected(int)));
 124         connect(view_, SIGNAL(segment_changed(int)),
 125                 this, SLOT(on_segment_changed(int)));
 126
 127         connect(this, SIGNAL(segment_selected(int)),
 128                 view_, SLOT(on_segment_changed(int)));
 129
 130         connect(view_, SIGNAL(segment_display_mode_changed(int, bool)),
 131                 this, SLOT(on_segment_display_mode_changed(int, bool)));
 132
 133         connect(view_, SIGNAL(always_zoom_to_fit_changed(bool)),
 134                 this, SLOT(on_always_zoom_to_fit_changed(bool)));
 135
 136         if (add_default_widgets)
 137                 add_toolbar_widgets();
 138 }
 139
 140 Session &StandardBar::session() const
 141 {
 142         return session_;
 143 }
 144
 145 void StandardBar::add_toolbar_widgets()
 146 {
 147         // Setup the toolbar
 148         addAction(action_view_zoom_in_);
 149         addAction(action_view_zoom_out_);
 150         addAction(action_view_zoom_fit_);
 151         addAction(action_view_zoom_one_to_one_);
 152         addSeparator();
 153         addAction(action_view_show_cursors_);
 154         multi_segment_actions_.push_back(addSeparator());
 155         multi_segment_actions_.push_back(addWidget(segment_display_mode_selector_));
 156         multi_segment_actions_.push_back(addWidget(segment_selector_));
 157         addSeparator();
 158
 159         // Hide the multi-segment UI until we know that there are multiple segments
 160         show_multi_segment_ui(false);
 161 }
 162
 163 void StandardBar::show_multi_segment_ui(const bool state)
 164 {
 165         for (QAction* action : multi_segment_actions_)
 166                 action->setVisible(state);
 167
 168         on_segment_display_mode_changed(view_->segment_display_mode(),
 169                 view_->segment_is_selectable());
 170 }
 171
 172 QAction* StandardBar::action_view_zoom_in() const
 173 {
 174         return action_view_zoom_in_;
 175 }
 176
 177 QAction* StandardBar::action_view_zoom_out() const
 178 {
 179         return action_view_zoom_out_;
 180 }
 181
 182 QAction* StandardBar::action_view_zoom_fit() const
 183 {
 184         return action_view_zoom_fit_;
 185 }
 186
 187 QAction* StandardBar::action_view_zoom_one_to_one() const
 188 {
 189         return action_view_zoom_one_to_one_;
 190 }
 191
 192 QAction* StandardBar::action_view_show_cursors() const
 193 {
 194         return action_view_show_cursors_;
 195 }
 196
 197 void StandardBar::on_actionViewZoomIn_triggered()
 198 {
 199         view_->zoom(1);
 200 }
 201
 202 void StandardBar::on_actionViewZoomOut_triggered()
 203 {
 204         view_->zoom(-1);
 205 }
 206
 207 void StandardBar::on_actionViewZoomFit_triggered(bool checked)
 208 {
 209         view_->zoom_fit(checked);
 210 }
 211
 212 void StandardBar::on_actionViewZoomOneToOne_triggered()
 213 {
 214         view_->zoom_one_to_one();
 215 }
 216
 217 void StandardBar::on_actionViewShowCursors_triggered()
 218 {
 219         const bool show = !view_->cursors_shown();
 220         if (show)
 221                 view_->centre_cursors();
 222
 223         view_->show_cursors(show);
 224 }
 225
 226 void StandardBar::on_actionSDMLast_triggered()
 227 {
 228         view_->set_segment_display_mode(Trace::ShowLastSegmentOnly);
 229 }
 230
 231 void StandardBar::on_actionSDMLastComplete_triggered()
 232 {
 233         view_->set_segment_display_mode(Trace::ShowLastCompleteSegmentOnly);
 234 }
 235
 236 void StandardBar::on_actionSDMSingle_triggered()
 237 {
 238         view_->set_segment_display_mode(Trace::ShowSingleSegmentOnly);
 239 }
 240
 241 void StandardBar::on_always_zoom_to_fit_changed(bool state)
 242 {
 243         action_view_zoom_fit_->setChecked(state);
 244 }
 245
 246 void StandardBar::on_new_segment(int new_segment_id)
 247 {
 248         if (new_segment_id > 0) {
 249                 show_multi_segment_ui(true);
 250                 segment_selector_->setMaximum(new_segment_id + 1);
 251         } else
 252                 show_multi_segment_ui(false);
 253 }
 254
 255 void StandardBar::on_segment_changed(int segment_id)
 256 {
 257         // We need to adjust the value by 1 because internally, segments
 258         // start at 0 while they start with 1 for the spinbox
 259         const uint32_t ui_segment_id = segment_id + 1;
 260
 261         // This is called when the current segment was changed
 262         // by other parts of the UI, e.g. the view itself
 263
 264         // Make sure our value isn't limited by a too low maximum
 265         // Note: this can happen if on_segment_changed() is called before
 266         // on_new_segment()
 267         if ((uint32_t)segment_selector_->maximum() < ui_segment_id)
 268                 segment_selector_->setMaximum(ui_segment_id);
 269
 270         segment_selector_->setValue(ui_segment_id);
 271 }
 272
 273 void StandardBar::on_segment_selected(int ui_segment_id)
 274 {
 275         // We need to adjust the value by 1 because internally, segments
 276         // start at 0 while they start with 1 for the spinbox
 277         const uint32_t segment_id = ui_segment_id - 1;
 278
 279         // This is called when the user selected a segment using the spin box
 280         // or when the value of the spinbox was assigned a new value. Since we
 281         // only care about the former, we filter out the latter:
 282         if (segment_id == view_->current_segment())
 283                 return;
 284
 285         // No matter which segment display mode we were in, we now show a single segment
 286         if (view_->segment_display_mode() != Trace::ShowSingleSegmentOnly)
 287                 on_actionSDMSingle_triggered();
 288
 289         segment_selected(segment_id);
 290 }
 291
 292 void StandardBar::on_segment_display_mode_changed(int mode, bool segment_selectable)
 293 {
 294         segment_selector_->setReadOnly(!segment_selectable);
 295
 296         switch ((Trace::SegmentDisplayMode)mode) {
 297         case Trace::ShowLastSegmentOnly:
 298                 segment_display_mode_selector_->setDefaultAction(action_sdm_last_);
 299                 break;
 300         case Trace::ShowLastCompleteSegmentOnly:
 301                 segment_display_mode_selector_->setDefaultAction(action_sdm_last_complete_);
 302                 break;
 303         case Trace::ShowSingleSegmentOnly:
 304                 segment_display_mode_selector_->setDefaultAction(action_sdm_single_);
 305                 break;
 306         default:
 307                 break;
 308         }
 309 }
 310
 311 } // namespace trace
 312 } // namespace views
 313 } // namespace pv