Fix #121 by implementing sticky scrolling

[pulseview.git] / pv / mainwindow.cpp

diff --git a/pv/mainwindow.cpp b/pv/mainwindow.cpp
index 3a775edde104d2500f00397730e63c8844de74d3..6d28194bb87cbed491e00a3aa2bc21436e8976b3 100644 (file)
--- a/pv/mainwindow.cpp
+++ b/pv/mainwindow.cpp
@@ -106,6 +106,7 @@ MainWindow::MainWindow(DeviceManager &device_manager,
        action_view_zoom_out_(new QAction(this)),
        action_view_zoom_fit_(new QAction(this)),
        action_view_zoom_one_to_one_(new QAction(this)),
+       action_view_sticky_scrolling_(new QAction(this)),
        action_view_show_cursors_(new QAction(this)),
        action_about_(new QAction(this))
 #ifdef ENABLE_DECODE
@@ -160,6 +161,11 @@ QAction* MainWindow::action_view_zoom_one_to_one() const
        return action_view_zoom_one_to_one_;
 }
 
+QAction* MainWindow::action_view_sticky_scrolling() const
+{
+       return action_view_sticky_scrolling_;
+}
+
 QAction* MainWindow::action_view_show_cursors() const
 {
        return action_view_show_cursors_;
@@ -411,6 +417,18 @@ void MainWindow::setup_ui()
                QString::fromUtf8("actionViewZoomOneToOne"));
        menu_view->addAction(action_view_zoom_one_to_one_);
 
+       menu_file->addSeparator();
+
+       action_view_sticky_scrolling_->setCheckable(true);
+       action_view_sticky_scrolling_->setChecked(true);
+       action_view_sticky_scrolling_->setShortcut(QKeySequence(Qt::Key_R));
+       action_view_sticky_scrolling_->setObjectName(
+               QString::fromUtf8("actionViewStickyScrolling"));
+       action_view_sticky_scrolling_->setText(tr("Sticky Sc&rolling"));
+       menu_view->addAction(action_view_sticky_scrolling_);
+
+       view_->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
+
        menu_view->addSeparator();
 
        action_view_show_cursors_->setCheckable(true);
@@ -473,6 +491,11 @@ void MainWindow::setup_ui()
                SLOT(capture_state_changed(int)));
        connect(&session_, SIGNAL(device_selected()), this,
                SLOT(device_selected()));
+
+       // Setup view_ events
+       connect(view_, SIGNAL(sticky_scrolling_changed(bool)), this,
+               SLOT(sticky_scrolling_changed(bool)));
+
 }
 
 void MainWindow::select_init_device() {
@@ -715,6 +738,11 @@ void MainWindow::on_actionViewZoomOneToOne_triggered()
        view_->zoom_one_to_one();
 }
 
+void MainWindow::on_actionViewStickyScrolling_triggered()
+{
+       view_->enable_sticky_scrolling(action_view_sticky_scrolling_->isChecked());
+}
+
 void MainWindow::on_actionViewShowCursors_triggered()
 {
        assert(view_);
@@ -732,6 +760,11 @@ void MainWindow::on_actionAbout_triggered()
        dlg.exec();
 }
 
+void MainWindow::sticky_scrolling_changed(bool state)
+{
+       action_view_sticky_scrolling_->setChecked(state);
+}
+
 void MainWindow::add_decoder(srd_decoder *decoder)
 {
 #ifdef ENABLE_DECODE