some constness

1 files changed, 2 insertions, 2 deletions

diff --git a/muse2/muse/midiedit/prcanvas.cpp b/muse2/muse/midiedit/prcanvas.cpp
index 1d8039bb..a46b5a5c 100644
--- a/muse2/muse/midiedit/prcanvas.cpp
+++ b/muse2/muse/midiedit/prcanvas.cpp
@@ -59,7 +59,7 @@ namespace MusEGui {
 //   NEvent
 //---------------------------------------------------------
 
-NEvent::NEvent(MusECore::Event& e, MusECore::Part* p, int y) : MusEGui::CItem(e, p)
+NEvent::NEvent(const MusECore::Event& e, MusECore::Part* p, int y) : MusEGui::CItem(e, p)
       {
       y = y - KH/4;
       unsigned tick = e.tick() + p->tick();
@@ -72,7 +72,7 @@ NEvent::NEvent(MusECore::Event& e, MusECore::Part* p, int y) : MusEGui::CItem(e,
 //   addItem
 //---------------------------------------------------------
 
-CItem* PianoCanvas::addItem(MusECore::Part* part, MusECore::Event& event)
+CItem* PianoCanvas::addItem(MusECore::Part* part, const MusECore::Event& event)
       {
       if (signed(event.tick())<0) {
             printf("ERROR: trying to add event before current part!\n");