Implement MainViewRange meta obj and tab_dec::ViewModeVisible

[pulseview.git] / pv / views / tabular_decoder / view.cpp

diff --git a/pv/views/tabular_decoder/view.cpp b/pv/views/tabular_decoder/view.cpp
index 6ee3e2ac13b1871b632bfa229c44ef0f4d4b4ca4..b4bb93de3086f88ce501787ea8c3996d5dfe84ed 100644 (file)
--- a/pv/views/tabular_decoder/view.cpp
+++ b/pv/views/tabular_decoder/view.cpp
@@ -45,6 +45,7 @@ using pv::data::decode::Decoder;
 using pv::util::Timestamp;
 
 using std::make_shared;
+using std::max;
 using std::shared_ptr;
 
 namespace pv {
@@ -58,8 +59,8 @@ const char* SaveTypeNames[SaveTypeCount] = {
 
 const char* ViewModeNames[ViewModeCount] = {
        "Show all",
-       "Show all and focus on newest"
-//     "Show visible in main view"
+       "Show all and focus on newest",
+       "Show visible in main view"
 };
 
 QSize QCustomTableView::minimumSizeHint() const
@@ -178,9 +179,17 @@ View::View(Session &session, bool is_main_view, QMainWindow *parent) :
        connect(table_view_->horizontalHeader(), SIGNAL(customContextMenuRequested(const QPoint&)),
                this, SLOT(on_table_header_requested(const QPoint&)));
 
+       // Set up metadata event handler
+       session_.metadata_obj_manager()->add_observer(this);
+
        reset_view_state();
 }
 
+View::~View()
+{
+       session_.metadata_obj_manager()->remove_observer(this);
+}
+
 ViewType View::get_type() const
 {
        return ViewTypeTabularDecoder;
@@ -400,7 +409,24 @@ void View::on_hide_hidden_changed(bool checked)
 
 void View::on_view_mode_changed(int index)
 {
-       (void)index;
+       if (index == ViewModeVisible) {
+               MetadataObject *md_obj =
+                       session_.metadata_obj_manager()->find_object_by_type(MetadataObjMainViewRange);
+               assert(md_obj);
+
+               int64_t start_sample = md_obj->value(MetadataValueStartSample).toLongLong();
+               int64_t end_sample = md_obj->value(MetadataValueEndSample).toLongLong();
+
+               model_->set_sample_range(max((int64_t)0, start_sample),
+                       max((int64_t)0, end_sample));
+       } else {
+               // Reset the model's data range
+               model_->set_sample_range(0, 0);
+       }
+
+       if (index == ViewModeLatest)
+               table_view_->scrollTo(model_->index(model_->rowCount() - 1, 0),
+                       QAbstractItemView::PositionAtBottom);
 }
 
 void View::on_signal_name_changed(const QString &name)
@@ -543,6 +569,25 @@ void View::on_table_header_toggled(bool checked)
        table_view_->horizontalHeader()->setSectionHidden(column, !checked);
 }
 
+void View::on_metadata_object_changed(MetadataObject* obj,
+       MetadataValueType value_type)
+{
+       // Check if we need to update the model's data range. We only work on the
+       // end sample value because the start sample value is updated first and
+       // we don't want to update the model twice
+
+       if ((view_mode_selector_->currentIndex() == ViewModeVisible) &&
+               (obj->type() == MetadataObjMainViewRange) &&
+               (value_type == MetadataValueEndSample)) {
+
+               int64_t start_sample = obj->value(MetadataValueStartSample).toLongLong();
+               int64_t end_sample = obj->value(MetadataValueEndSample).toLongLong();
+
+               model_->set_sample_range(max((int64_t)0, start_sample),
+                       max((int64_t)0, end_sample));
+       }
+}
+
 void View::perform_delayed_view_update()
 {
        update_data();