From 72ece7d9bf5fe8cd8c8f84d3aa1c463640f84f8a Mon Sep 17 00:00:00 2001
From: Paul Licameli <paul.licameli@audacityteam.org>
Date: Tue, 25 Feb 2020 09:26:12 -0500
Subject: [PATCH] Bug2314: Zoom in should work during playback...

...bug began at 52ff705b0dff568512b6c6016936b78311c56a69

Fixing this in a way that does not make a dependency cycle between ProjectWindow
and TrackPanel
---
 src/ProjectWindow.cpp   | 2 ++
 src/menus/ViewMenus.cpp | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/src/ProjectWindow.cpp b/src/ProjectWindow.cpp
index b6a88599f..1285e51b3 100644
--- a/src/ProjectWindow.cpp
+++ b/src/ProjectWindow.cpp
@@ -401,6 +401,8 @@ unsigned operator()
          double ZoomFactor = pow(2.0, steps);
          AudacityProject *p = GetProject();
          if( steps > 0 )
+            // PRL:  Track panel refresh may be needed if you reenable this
+            // code, but we don't want this file dependent on TrackPanel.cpp
             p->ZoomInByFactor( ZoomFactor );
          else
             p->ZoomOutByFactor( ZoomFactor );
diff --git a/src/menus/ViewMenus.cpp b/src/menus/ViewMenus.cpp
index 05abe4789..4a9e398fc 100644
--- a/src/menus/ViewMenus.cpp
+++ b/src/menus/ViewMenus.cpp
@@ -166,8 +166,10 @@ struct Handler final
 void OnZoomIn(const CommandContext &context)
 {
    auto &project = context.project;
+   auto &trackPanel = TrackPanel::Get( project );
    auto &window = ProjectWindow::Get( project );
    window.ZoomInByFactor( 2.0 );
+   trackPanel.Refresh(false);
 }
 
 void OnZoomNormal(const CommandContext &context)