From f6c86e0eedad23719fd05474e9ba8392853554c2 Mon Sep 17 00:00:00 2001
From: Marcus Huderle <huderlem@gmail.com>
Date: Wed, 20 May 2020 18:30:17 -0500
Subject: [PATCH] Eliminate unnecessary expensive map redraw when opening a map

---
 include/mainwindow.h | 1 +
 src/mainwindow.cpp   | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/include/mainwindow.h b/include/mainwindow.h
index c575a6ec..1711645e 100644
--- a/include/mainwindow.h
+++ b/include/mainwindow.h
@@ -268,6 +268,7 @@ private:
 
     bool setMap(QString, bool scrollTreeView = false);
     void redrawMapScene();
+    void refreshMapScene();
     bool loadDataStructures();
     bool loadProjectCombos();
     bool populateMapList();
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 94d3218b..6a306892 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -439,7 +439,7 @@ bool MainWindow::setMap(QString map_name, bool scrollTreeView) {
         ui->mapList->setExpanded(mapListProxyModel->mapFromSource(mapListIndexes.value(editor->map->name)), false);
     }
 
-    redrawMapScene();
+    refreshMapScene();
     displayMapProperties();
 
     if (scrollTreeView) {
@@ -469,6 +469,11 @@ void MainWindow::redrawMapScene()
     if (!editor->displayMap())
         return;
 
+    this->refreshMapScene();
+}
+
+void MainWindow::refreshMapScene()
+{
     on_mainTabBar_tabBarClicked(ui->mainTabBar->currentIndex());
 
     double base = editor->scale_base;