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         connect(&session_, SIGNAL(frame_ended()),
  90                 this, SLOT(on_segment_added()));
  91
  92         connect(view_, SIGNAL(always_zoom_to_fit_changed(bool)),
  93                 this, SLOT(on_always_zoom_to_fit_changed(bool)));
  94
  95         if (add_default_widgets)
  96                 add_toolbar_widgets();
  97 }
  98
  99 Session &StandardBar::session() const
 100 {
 101         return session_;
 102 }
 103
 104 void StandardBar::add_toolbar_widgets()
 105 {
 106         // Setup the toolbar
 107         addAction(action_view_zoom_in_);
 108         addAction(action_view_zoom_out_);
 109         addAction(action_view_zoom_fit_);
 110         addAction(action_view_zoom_one_to_one_);
 111         addSeparator();
 112         addAction(action_view_show_cursors_);
 113         multi_segment_actions_.push_back(addSeparator());
 114         multi_segment_actions_.push_back(addWidget(segment_selector_));
 115         addSeparator();
 116
 117         // Hide the multi-segment UI until we know that there are multiple segments
 118         show_multi_segment_ui(false);
 119 }
 120
 121 void StandardBar::show_multi_segment_ui(const bool state)
 122 {
 123         for (QAction* action : multi_segment_actions_)
 124                 action->setVisible(state);
 125 }
 126
 127 QAction* StandardBar::action_view_zoom_in() const
 128 {
 129         return action_view_zoom_in_;
 130 }
 131
 132 QAction* StandardBar::action_view_zoom_out() const
 133 {
 134         return action_view_zoom_out_;
 135 }
 136
 137 QAction* StandardBar::action_view_zoom_fit() const
 138 {
 139         return action_view_zoom_fit_;
 140 }
 141
 142 QAction* StandardBar::action_view_zoom_one_to_one() const
 143 {
 144         return action_view_zoom_one_to_one_;
 145 }
 146
 147 QAction* StandardBar::action_view_show_cursors() const
 148 {
 149         return action_view_show_cursors_;
 150 }
 151
 152 void StandardBar::on_actionViewZoomIn_triggered()
 153 {
 154         view_->zoom(1);
 155 }
 156
 157 void StandardBar::on_actionViewZoomOut_triggered()
 158 {
 159         view_->zoom(-1);
 160 }
 161
 162 void StandardBar::on_actionViewZoomFit_triggered(bool checked)
 163 {
 164         view_->zoom_fit(checked);
 165 }
 166
 167 void StandardBar::on_actionViewZoomOneToOne_triggered()
 168 {
 169         view_->zoom_one_to_one();
 170 }
 171
 172 void StandardBar::on_actionViewShowCursors_triggered()
 173 {
 174         const bool show = !view_->cursors_shown();
 175         if (show)
 176                 view_->centre_cursors();
 177
 178         view_->show_cursors(show);
 179 }
 180
 181 void StandardBar::on_always_zoom_to_fit_changed(bool state)
 182 {
 183         action_view_zoom_fit_->setChecked(state);
 184 }
 185
 186 void StandardBar::on_segment_added()
 187 {
 188         const int segment_count = session_.get_segment_count();
 189
 190         if (segment_count > 1) {
 191                 show_multi_segment_ui(true);
 192                 segment_selector_->setMaximum(segment_count);
 193         } else
 194                 show_multi_segment_ui(false);
 195 }
 196
 197 } // namespace trace
 198 } // namespace views
 199 } // namespace pv