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_selector_(new QSpinBox(this))
  47 {
  48         setObjectName(QString::fromUtf8("StandardBar"));
  49
  50         // Actions
  51         action_view_zoom_in_->setText(tr("Zoom &In"));
  52         action_view_zoom_in_->setIcon(QIcon::fromTheme("zoom-in",
  53                 QIcon(":/icons/zoom-in.png")));
  54         // simply using Qt::Key_Plus shows no + in the menu
  55         action_view_zoom_in_->setShortcut(QKeySequence::ZoomIn);
  56         connect(action_view_zoom_in_, SIGNAL(triggered(bool)),
  57                 this, SLOT(on_actionViewZoomIn_triggered()));
  58
  59         action_view_zoom_out_->setText(tr("Zoom &Out"));
  60         action_view_zoom_out_->setIcon(QIcon::fromTheme("zoom-out",
  61                 QIcon(":/icons/zoom-out.png")));
  62         action_view_zoom_out_->setShortcut(QKeySequence::ZoomOut);
  63         connect(action_view_zoom_out_, SIGNAL(triggered(bool)),
  64                 this, SLOT(on_actionViewZoomOut_triggered()));
  65
  66         action_view_zoom_fit_->setCheckable(true);
  67         action_view_zoom_fit_->setText(tr("Zoom to &Fit"));
  68         action_view_zoom_fit_->setIcon(QIcon::fromTheme("zoom-fit-best",
  69                 QIcon(":/icons/zoom-fit-best.png")));
  70         action_view_zoom_fit_->setShortcut(QKeySequence(Qt::Key_F));
  71         connect(action_view_zoom_fit_, SIGNAL(triggered(bool)),
  72                 this, SLOT(on_actionViewZoomFit_triggered(bool)));
  73
  74         action_view_zoom_one_to_one_->setText(tr("Zoom to O&ne-to-One"));
  75         action_view_zoom_one_to_one_->setIcon(QIcon::fromTheme("zoom-original",
  76                 QIcon(":/icons/zoom-original.png")));
  77         action_view_zoom_one_to_one_->setShortcut(QKeySequence(Qt::Key_O));
  78         connect(action_view_zoom_one_to_one_, SIGNAL(triggered(bool)),
  79                 this, SLOT(on_actionViewZoomOneToOne_triggered()));
  80
  81         action_view_show_cursors_->setCheckable(true);
  82         action_view_show_cursors_->setIcon(QIcon(":/icons/show-cursors.svg"));
  83         action_view_show_cursors_->setShortcut(QKeySequence(Qt::Key_C));
  84         connect(action_view_show_cursors_, SIGNAL(triggered(bool)),
  85                 this, SLOT(on_actionViewShowCursors_triggered()));
  86         action_view_show_cursors_->setText(tr("Show &Cursors"));
  87
  88         segment_selector_->setMinimum(1);
  89         segment_selector_->hide();
  90         connect(&session_, SIGNAL(new_segment(int)),
  91                 this, SLOT(on_new_segment(int)));
  92
  93         connect(segment_selector_, SIGNAL(valueChanged(int)),
  94                 this, SLOT(on_segment_selected(int)));
  95         connect(view_, SIGNAL(segment_changed(int)),
  96                 this, SLOT(on_segment_changed(int)));
  97
  98         connect(this, SIGNAL(segment_selected(int)),
  99                 view_, SLOT(on_segment_changed(int)));
 100
 101         connect(view_, SIGNAL(segment_display_mode_changed(bool)),
 102                 this, SLOT(on_segment_display_mode_changed(bool)));
 103
 104         connect(view_, SIGNAL(always_zoom_to_fit_changed(bool)),
 105                 this, SLOT(on_always_zoom_to_fit_changed(bool)));
 106
 107         if (add_default_widgets)
 108                 add_toolbar_widgets();
 109 }
 110
 111 Session &StandardBar::session() const
 112 {
 113         return session_;
 114 }
 115
 116 void StandardBar::add_toolbar_widgets()
 117 {
 118         // Setup the toolbar
 119         addAction(action_view_zoom_in_);
 120         addAction(action_view_zoom_out_);
 121         addAction(action_view_zoom_fit_);
 122         addAction(action_view_zoom_one_to_one_);
 123         addSeparator();
 124         addAction(action_view_show_cursors_);
 125         multi_segment_actions_.push_back(addSeparator());
 126         multi_segment_actions_.push_back(addWidget(segment_selector_));
 127         addSeparator();
 128
 129         // Hide the multi-segment UI until we know that there are multiple segments
 130         show_multi_segment_ui(false);
 131 }
 132
 133 void StandardBar::show_multi_segment_ui(const bool state)
 134 {
 135         for (QAction* action : multi_segment_actions_)
 136                 action->setVisible(state);
 137
 138         on_segment_display_mode_changed(view_->segment_is_selectable());
 139 }
 140
 141 QAction* StandardBar::action_view_zoom_in() const
 142 {
 143         return action_view_zoom_in_;
 144 }
 145
 146 QAction* StandardBar::action_view_zoom_out() const
 147 {
 148         return action_view_zoom_out_;
 149 }
 150
 151 QAction* StandardBar::action_view_zoom_fit() const
 152 {
 153         return action_view_zoom_fit_;
 154 }
 155
 156 QAction* StandardBar::action_view_zoom_one_to_one() const
 157 {
 158         return action_view_zoom_one_to_one_;
 159 }
 160
 161 QAction* StandardBar::action_view_show_cursors() const
 162 {
 163         return action_view_show_cursors_;
 164 }
 165
 166 void StandardBar::on_actionViewZoomIn_triggered()
 167 {
 168         view_->zoom(1);
 169 }
 170
 171 void StandardBar::on_actionViewZoomOut_triggered()
 172 {
 173         view_->zoom(-1);
 174 }
 175
 176 void StandardBar::on_actionViewZoomFit_triggered(bool checked)
 177 {
 178         view_->zoom_fit(checked);
 179 }
 180
 181 void StandardBar::on_actionViewZoomOneToOne_triggered()
 182 {
 183         view_->zoom_one_to_one();
 184 }
 185
 186 void StandardBar::on_actionViewShowCursors_triggered()
 187 {
 188         const bool show = !view_->cursors_shown();
 189         if (show)
 190                 view_->centre_cursors();
 191
 192         view_->show_cursors(show);
 193 }
 194
 195 void StandardBar::on_always_zoom_to_fit_changed(bool state)
 196 {
 197         action_view_zoom_fit_->setChecked(state);
 198 }
 199
 200 void StandardBar::on_new_segment(int new_segment_id)
 201 {
 202         if (new_segment_id > 1) {
 203                 show_multi_segment_ui(true);
 204                 segment_selector_->setMaximum(new_segment_id + 1);
 205         } else
 206                 show_multi_segment_ui(false);
 207 }
 208
 209 void StandardBar::on_segment_changed(int segment_id)
 210 {
 211         // This is called when the current segment was changed
 212         // by other parts of the UI, e.g. the view itself
 213
 214         // We need to adjust the value by 1 because internally, segments
 215         // start at 0 while they start with 1 for the spinbox
 216         segment_selector_->setValue(segment_id + 1);
 217
 218         segment_selected(segment_id);
 219 }
 220
 221 void StandardBar::on_segment_selected(int ui_segment_id)
 222 {
 223         // This is called when the user selected a segment using the spin box
 224
 225         // We need to adjust the value by 1 because internally, segments
 226         // start at 0 while they start with 1 for the spinbox
 227         segment_selected(ui_segment_id - 1);
 228 }
 229
 230 void StandardBar::on_segment_display_mode_changed(bool segment_selectable)
 231 {
 232         segment_selector_->setReadOnly(!segment_selectable);
 233 }
 234
 235 } // namespace trace
 236 } // namespace views
 237 } // namespace pv