only show scene album if the project has more than a single scene

HISTORY.md

@@ -8,6 +8,9 @@
 * **Notable Fixes:**
     * made scrollbars in the wardrobe and jukebox more responsive
 
+### 2021-04-28
+* gui: only show scene album if the project has more than a single scene
+
 ### 2021-04-23
 * store: serialize sprite-order from scenes
 * gui: sceneified refreshIDE()

snap.html

@@ -12,7 +12,7 @@
         <script src="src/threads.js?version=2021-04-17"></script>
         <script src="src/objects.js?version=2021-04-23"></script>
         <script src="src/scenes.js?version=2021-04-23"></script>
-        <script src="src/gui.js?version=2021-04-23"></script>
+        <script src="src/gui.js?version=2021-04-28"></script>
         <script src="src/paint.js?version=2021-03-17"></script>
         <script src="src/lists.js?version=2021-03-15"></script>
         <script src="src/byob.js?version=2021-04-20"></script>

src/gui.js

@@ -83,7 +83,7 @@ Animation, BoxMorph, BlockEditorMorph, BlockDialogMorph, Project, ZERO, BLACK*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.gui = '2021-April-23';
+modules.gui = '2021-April-28';
 
 // Declarations
 
@@ -1930,15 +1930,20 @@ IDE_Morph.prototype.createCorral = function (keepSceneAlbum) {
     this.corral.add(this.corral.album);
 
     this.corral.fixLayout = function () {
-        // this.stageIcon.setCenter(this.center()); // version before scenes
-        this.stageIcon.setTop(this.top());
+        this.stageIcon.setCenter(this.center());
         this.stageIcon.setLeft(this.left() + padding);
 
         // scenes +++
-        this.album.setLeft(this.left());
-        this.album.setTop(this.stageIcon.bottom() + padding);
-        this.album.setWidth(this.stageIcon.width() + padding * 2);
-        this.album.setHeight(this.height() - this.stageIcon.height() - padding);
+        if (myself.scenes.length() < 2) {
+            this.album.hide();
+        } else {
+            this.stageIcon.setTop(this.top());
+            this.album.show();
+            this.album.setLeft(this.left());
+            this.album.setTop(this.stageIcon.bottom() + padding);
+            this.album.setWidth(this.stageIcon.width() + padding * 2);
+            this.album.setHeight(this.height() - this.stageIcon.height() - padding); // +++
+        }
 
         this.frame.setLeft(this.stageIcon.right() + padding);
         this.frame.setExtent(new Point(