Simplify map list icon updating

include/mainwindow.h

@@ -340,7 +340,6 @@ private:
     QMap<Event::Group, DraggablePixmapItem*> lastSelectedEvent;
 
     bool isProgrammaticEventTabChange;
-    bool projectHasUnsavedChanges;
     bool newMapDefaultsSet = false;
 
     MapSortOrder mapSortOrder;
@@ -366,7 +365,7 @@ private:
     QStandardItem* createMapItem(QString mapName, int groupNum, int inGroupNum);
     void refreshRecentProjectsMenu();
 
-    void drawMapListIcons(QAbstractItemModel *model);
+    void updateMapListIcon(const QString &mapName);
     void updateMapList();
 
     void displayMapProperties();

src/editor.cpp

@@ -981,7 +981,6 @@ void Editor::updateDiveEmergeVisibility() {
     }
 }
 
-// TODO: Fold into PixmapItem
 QPoint Editor::calculateConnectionPosition(MapConnection *connection, const QPixmap &pixmap) {
     const QString direction = connection->direction();
     int offset = connection->offset();

src/mainwindow.cpp

@@ -421,9 +421,7 @@ void MainWindow::markMapEdited(Map* map) {
         return;
     map->hasUnsavedDataChanges = true;
 
-    // TODO: Only update the necessary list icon
+    updateMapListIcon(map->name);
-    updateMapList();
-
     if (editor && editor->map == map)
         showWindowTitle();
 }
@@ -807,8 +805,10 @@ bool MainWindow::setMap(QString map_name, bool scrollTreeView) {
 
     connect(editor->map, &Map::mapNeedsRedrawing, this, &MainWindow::onMapNeedsRedrawing);
 
+    // Swap the "currently-open" icon from the old map to the new map
+    updateMapListIcon(userConfig.recentMap);
     userConfig.recentMap = map_name;
-    updateMapList();
+    updateMapListIcon(userConfig.recentMap);
 
     Scripting::cb_MapOpened(map_name);
     prefab.updatePrefabUi(editor->map);
@@ -1535,46 +1535,54 @@ void MainWindow::on_mapList_activated(const QModelIndex &index)
         userSetMap(data.toString());
 }
 
-void MainWindow::drawMapListIcons(QAbstractItemModel *model) {
+void MainWindow::updateMapListIcon(const QString &mapName) {
-    projectHasUnsavedChanges = false;
+    if (!editor->project || !editor->project->mapCache.contains(mapName))
+        return;
+
+    QStandardItem *item = mapListModel->itemFromIndex(mapListIndexes.value(mapName));
+    if (!item)
+        return;
+
+    if (editor->map && editor->map->name == mapName) {
+        item->setIcon(*mapOpenedIcon);
+    } else if (editor->project->mapCache.value(mapName)->hasUnsavedChanges()) {
+        item->setIcon(*mapEditedIcon);
+    } else {
+        item->setIcon(*mapIcon);
+    }
+}
+
+void MainWindow::updateMapList() {
     QList<QModelIndex> list;
     list.append(QModelIndex());
     while (list.length()) {
         QModelIndex parent = list.takeFirst();
-        for (int i = 0; i < model->rowCount(parent); i++) {
+        for (int i = 0; i < mapListModel->rowCount(parent); i++) {
-            QModelIndex index = model->index(i, 0, parent);
+            QModelIndex index = mapListModel->index(i, 0, parent);
-            if (model->hasChildren(index)) {
+            if (mapListModel->hasChildren(index)) {
                 list.append(index);
             }
             QVariant data = index.data(Qt::UserRole);
             if (!data.isNull()) {
-                QString map_name = data.toString();
+                updateMapListIcon(data.toString());
-                if (editor->project && editor->project->mapCache.contains(map_name)) {
-                    QStandardItem *map = mapListModel->itemFromIndex(mapListIndexes.value(map_name));
-                    map->setIcon(*mapIcon);
-                    if (editor->project->mapCache.value(map_name)->hasUnsavedChanges()) {
-                        map->setIcon(*mapEditedIcon);
-                        projectHasUnsavedChanges = true;
-                    }
-                    if (editor->map->name == map_name) {
-                        map->setIcon(*mapOpenedIcon);
-                    }
-                }
             }
         }
     }
 }
 
-void MainWindow::updateMapList() {
-    drawMapListIcons(mapListModel);
-}
-
 void MainWindow::on_action_Save_Project_triggered() {
     editor->saveProject();
     updateMapList();
     showWindowTitle();
 }
 
+void MainWindow::on_action_Save_triggered() {
+    editor->save();
+    if (editor->map)
+        updateMapListIcon(editor->map->name);
+    showWindowTitle();
+}
+
 void MainWindow::duplicate() {
     editor->duplicateSelectedEvents();
 }
@@ -1827,12 +1835,6 @@ void MainWindow::paste() {
     }
 }
 
-void MainWindow::on_action_Save_triggered() {
-    editor->save();
-    updateMapList();
-    showWindowTitle();
-}
-
 void MainWindow::on_mapViewTab_tabBarClicked(int index)
 {
     int oldIndex = ui->mapViewTab->currentIndex();
@@ -3128,7 +3130,16 @@ bool MainWindow::closeProject() {
     if (!isProjectOpen())
         return true;
 
-    if (projectHasUnsavedChanges || (editor->map && editor->map->hasUnsavedChanges())) {
+    // Check loaded maps for unsaved changes
+    bool unsavedChanges = false;
+    for (auto map : editor->project->mapCache.values()) {
+        if (map && map->hasUnsavedChanges()) {
+            unsavedChanges = true;
+            break;
+        }
+    }
+
+    if (unsavedChanges) {
         QMessageBox::StandardButton result = QMessageBox::question(
             this, "porymap", "The project has been modified, save changes?",
             QMessageBox::No | QMessageBox::Yes | QMessageBox::Cancel, QMessageBox::Yes);