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(&session_, SIGNAL(segment_completed(int)),
  94                 view_, SLOT(on_segment_completed(int)));
  95
  96         connect(segment_selector_, SIGNAL(valueChanged(int)),
  97                 this, SLOT(on_segment_selected(int)));
  98         connect(view_, SIGNAL(segment_changed(int)),
  99                 this, SLOT(on_segment_changed(int)));
 100
 101         connect(this, SIGNAL(segment_selected(int)),
 102                 view_, SLOT(on_segment_changed(int)));
 103
 104         connect(view_, SIGNAL(segment_display_mode_changed(bool)),
 105                 this, SLOT(on_segment_display_mode_changed(bool)));
 106
 107         connect(view_, SIGNAL(always_zoom_to_fit_changed(bool)),
 108                 this, SLOT(on_always_zoom_to_fit_changed(bool)));
 109
 110         if (add_default_widgets)
 111                 add_toolbar_widgets();
 112 }
 113
 114 Session &StandardBar::session() const
 115 {
 116         return session_;
 117 }
 118
 119 void StandardBar::add_toolbar_widgets()
 120 {
 121         // Setup the toolbar
 122         addAction(action_view_zoom_in_);
 123         addAction(action_view_zoom_out_);
 124         addAction(action_view_zoom_fit_);
 125         addAction(action_view_zoom_one_to_one_);
 126         addSeparator();
 127         addAction(action_view_show_cursors_);
 128         multi_segment_actions_.push_back(addSeparator());
 129         multi_segment_actions_.push_back(addWidget(segment_selector_));
 130         addSeparator();
 131
 132         // Hide the multi-segment UI until we know that there are multiple segments
 133         show_multi_segment_ui(false);
 134 }
 135
 136 void StandardBar::show_multi_segment_ui(const bool state)
 137 {
 138         for (QAction* action : multi_segment_actions_)
 139                 action->setVisible(state);
 140
 141         on_segment_display_mode_changed(view_->segment_is_selectable());
 142 }
 143
 144 QAction* StandardBar::action_view_zoom_in() const
 145 {
 146         return action_view_zoom_in_;
 147 }
 148
 149 QAction* StandardBar::action_view_zoom_out() const
 150 {
 151         return action_view_zoom_out_;
 152 }
 153
 154 QAction* StandardBar::action_view_zoom_fit() const
 155 {
 156         return action_view_zoom_fit_;
 157 }
 158
 159 QAction* StandardBar::action_view_zoom_one_to_one() const
 160 {
 161         return action_view_zoom_one_to_one_;
 162 }
 163
 164 QAction* StandardBar::action_view_show_cursors() const
 165 {
 166         return action_view_show_cursors_;
 167 }
 168
 169 void StandardBar::on_actionViewZoomIn_triggered()
 170 {
 171         view_->zoom(1);
 172 }
 173
 174 void StandardBar::on_actionViewZoomOut_triggered()
 175 {
 176         view_->zoom(-1);
 177 }
 178
 179 void StandardBar::on_actionViewZoomFit_triggered(bool checked)
 180 {
 181         view_->zoom_fit(checked);
 182 }
 183
 184 void StandardBar::on_actionViewZoomOneToOne_triggered()
 185 {
 186         view_->zoom_one_to_one();
 187 }
 188
 189 void StandardBar::on_actionViewShowCursors_triggered()
 190 {
 191         const bool show = !view_->cursors_shown();
 192         if (show)
 193                 view_->centre_cursors();
 194
 195         view_->show_cursors(show);
 196 }
 197
 198 void StandardBar::on_always_zoom_to_fit_changed(bool state)
 199 {
 200         action_view_zoom_fit_->setChecked(state);
 201 }
 202
 203 void StandardBar::on_new_segment(int new_segment_id)
 204 {
 205         if (new_segment_id > 0) {
 206                 show_multi_segment_ui(true);
 207                 segment_selector_->setMaximum(new_segment_id + 1);
 208         } else
 209                 show_multi_segment_ui(false);
 210 }
 211
 212 void StandardBar::on_segment_changed(int segment_id)
 213 {
 214         // This is called when the current segment was changed
 215         // by other parts of the UI, e.g. the view itself
 216
 217         // We need to adjust the value by 1 because internally, segments
 218         // start at 0 while they start with 1 for the spinbox
 219         segment_selector_->setValue(segment_id + 1);
 220
 221         segment_selected(segment_id);
 222 }
 223
 224 void StandardBar::on_segment_selected(int ui_segment_id)
 225 {
 226         // This is called when the user selected a segment using the spin box
 227
 228         // We need to adjust the value by 1 because internally, segments
 229         // start at 0 while they start with 1 for the spinbox
 230         segment_selected(ui_segment_id - 1);
 231 }
 232
 233 void StandardBar::on_segment_display_mode_changed(bool segment_selectable)
 234 {
 235         segment_selector_->setReadOnly(!segment_selectable);
 236 }
 237
 238 } // namespace trace
 239 } // namespace views
 240 } // namespace pv