Implement annotation export from the DecodeTrace context menu

[pulseview.git] / pv / views / trace / decodetrace.cpp

diff --git a/pv/views/trace/decodetrace.cpp b/pv/views/trace/decodetrace.cpp
index 9eeea1c29ec20beaa7139eb8ea1d9b835754b109..300fd2ecddbb5759f908f64f0a3255944a746939 100644 (file)
--- a/pv/views/trace/decodetrace.cpp
+++ b/pv/views/trace/decodetrace.cpp
@@ -21,6 +21,7 @@ extern "C" {
 #include <libsigrokdecode/libsigrokdecode.h>
 }
 
+#include <climits>
 #include <mutex>
 #include <tuple>
 
@@ -31,10 +32,13 @@ extern "C" {
 #include <QAction>
 #include <QApplication>
 #include <QComboBox>
+#include <QFileDialog>
 #include <QFormLayout>
 #include <QLabel>
 #include <QMenu>
+#include <QMessageBox>
 #include <QPushButton>
+#include <QTextStream>
 #include <QToolTip>
 
 #include "decodetrace.hpp"
@@ -321,6 +325,39 @@ QMenu* DecodeTrace::create_header_context_menu(QWidget *parent)
        return menu;
 }
 
+QMenu* DecodeTrace::create_view_context_menu(QWidget *parent, QPoint &click_pos)
+{
+       try {
+               selected_row_ = &visible_rows_[get_row_at_point(click_pos)];
+       } catch (out_of_range&) {
+               selected_row_ = nullptr;
+       }
+
+       const pair<uint64_t, uint64_t> sample_range =
+               get_sample_range(click_pos.x(), click_pos.x() + 1);
+       selected_samplepos_ = sample_range.first;
+
+       QMenu *const menu = new QMenu(parent);
+
+       QAction *const export_row =
+                       new QAction(tr("Export all annotations for this row"), this);
+       export_row->setIcon(QIcon::fromTheme("document-save-as",
+               QIcon(":/icons/document-save-as.png")));
+       connect(export_row, SIGNAL(triggered()),
+               this, SLOT(on_export_row()));
+       menu->addAction(export_row);
+
+       QAction *const export_row_from_here =
+               new QAction(tr("Export annotations for this row, starting here"), this);
+       export_row_from_here->setIcon(QIcon::fromTheme("document-save-as",
+               QIcon(":/icons/document-save-as.png")));
+       connect(export_row_from_here, SIGNAL(triggered()),
+               this, SLOT(on_export_row_from_here()));
+       menu->addAction(export_row_from_here);
+
+       return menu;
+}
+
 void DecodeTrace::draw_annotations(vector<pv::data::decode::Annotation> annotations,
                QPainter &p, int h, const ViewItemPaintParams &pp, int y,
                QColor row_color, int row_title_width)
@@ -699,7 +736,7 @@ const QString DecodeTrace::get_annotation_at_point(const QPoint &point)
        if (row < 0)
                return QString();
 
-       vector<pv::data::decode::Annotation> annotations;
+       vector<Annotation> annotations;
 
        decode_signal_->get_annotation_subset(annotations, visible_rows_[row],
                current_segment_, sample_range.first, sample_range.second);
@@ -983,6 +1020,55 @@ void DecodeTrace::on_show_hide_decoder(int index)
                owner_->row_item_appearance_changed(false, true);
 }
 
+void DecodeTrace::on_export_row()
+{
+       selected_samplepos_ = 0;
+       on_export_row_from_here();
+}
+
+void DecodeTrace::on_export_row_from_here()
+{
+       using namespace pv::data::decode;
+
+       if (!selected_row_)
+               return;
+
+       vector<Annotation> annotations;
+
+       decode_signal_->get_annotation_subset(annotations, *selected_row_,
+               current_segment_, selected_samplepos_, ULLONG_MAX);
+
+       if (annotations.empty())
+               return;
+
+       QSettings settings;
+       const QString dir = settings.value(SettingSaveDirectory).toString();
+
+       const QString file_name = QFileDialog::getSaveFileName(
+               owner_->view(), tr("Export annotations"), dir, tr("Text Files (*.txt);;All Files (*)"));
+
+       if (file_name.isEmpty())
+               return;
+
+       QFile file(file_name);
+       if (file.open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Text)) {
+               QTextStream out_stream(&file);
+
+               for (Annotation &ann : annotations)
+                       out_stream << ann.annotations().front() << '\n';
+
+               if (out_stream.status() == QTextStream::Ok)
+                       return;
+       }
+
+       QMessageBox msg(owner_->view());
+       msg.setText(tr("Error"));
+       msg.setInformativeText(tr("File %1 could not be written to.").arg(file_name));
+       msg.setStandardButtons(QMessageBox::Ok);
+       msg.setIcon(QMessageBox::Warning);
+       msg.exec();
+}
+
 } // namespace trace
 } // namespace views
 } // namespace pv