Fix #1038 by catching invalid cursor ranges

[pulseview.git] / pv / toolbars / mainbar.cpp

diff --git a/pv/toolbars/mainbar.cpp b/pv/toolbars/mainbar.cpp
index 1879693d57a31c01bc87458f556d67dd01db7506..34b120fec11ce0ec14bf21f16cc717e7b9d74222 100644 (file)
--- a/pv/toolbars/mainbar.cpp
+++ b/pv/toolbars/mainbar.cpp
@@ -612,6 +612,13 @@ void MainBar::export_file(shared_ptr<OutputFormat> format, bool selection_only)
                const uint64_t end_sample = (uint64_t)max(
                        (double)0, end_time.convert_to<double>() * samplerate);
 
                const uint64_t end_sample = (uint64_t)max(
                        (double)0, end_time.convert_to<double>() * samplerate);
 

+               if ((start_sample == 0) && (end_sample == 0)) {
+                       // Both cursors are negative and were clamped to 0
+                       show_session_error(tr("Invalid Range"), tr("The cursors don't " \
+                                       "define a valid range of samples."));
+                       return;
+               }
+

                sample_range = make_pair(start_sample, end_sample);
        } else {
                sample_range = make_pair(0, 0);
                sample_range = make_pair(start_sample, end_sample);
        } else {
                sample_range = make_pair(0, 0);