views/trace: Fix two -fsanitize=undefined issues.

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

diff --git a/pv/views/trace/view.cpp b/pv/views/trace/view.cpp
index 4b95a806a490cf492ad33cb6e2b537b5f8744165..4ee791623d38d766404ef67d8854dfab8da1c46b 100644 (file)
--- a/pv/views/trace/view.cpp
+++ b/pv/views/trace/view.cpp
@@ -130,7 +130,8 @@ View::View(Session &session, bool is_main_view, QWidget *parent) :
        // Note: Place defaults in View::reset_view_state(), not here
        splitter_(new QSplitter()),
        header_was_shrunk_(false),  // The splitter remains unchanged after a reset, so this goes here
-       sticky_scrolling_(false)  // Default setting is set in MainWindow::setup_ui()
+       sticky_scrolling_(false),  // Default setting is set in MainWindow::setup_ui()
+       scroll_needs_defaults_(true)
 {
        QVBoxLayout *root_layout = new QVBoxLayout(this);
        root_layout->setContentsMargins(0, 0, 0, 0);
@@ -510,6 +511,18 @@ void View::set_v_offset(int offset)
        viewport_->update();
 }
 
+void View::set_h_offset(int offset)
+{
+       scrollarea_->horizontalScrollBar()->setSliderPosition(offset);
+       header_->update();
+       viewport_->update();
+}
+
+int View::get_h_scrollbar_maximum() const
+{
+       return scrollarea_->horizontalScrollBar()->maximum();
+}
+
 unsigned int View::depth() const
 {
        return 0;
@@ -832,15 +845,17 @@ shared_ptr<CursorPair> View::cursors() const
        return cursors_;
 }
 
-void View::add_flag(const Timestamp& time)
+shared_ptr<Flag> View::add_flag(const Timestamp& time)
 {
-       flags_.push_back(make_shared<Flag>(*this, time,
-               QString("%1").arg(next_flag_text_)));
+       shared_ptr<Flag> flag =
+               make_shared<Flag>(*this, time, QString("%1").arg(next_flag_text_));
+       flags_.push_back(flag);
 
        next_flag_text_ = (next_flag_text_ >= 'Z') ? 'A' :
                (next_flag_text_ + 1);
 
        time_item_appearance_changed(true, true);
+       return flag;
 }
 
 void View::remove_flag(shared_ptr<Flag> flag)