From 00d1c36da18cb57a062ad0ae78b37b91125b4a68 Mon Sep 17 00:00:00 2001
From: dbilgin <denizcanbilgin@gmail.com>
Date: Sun, 26 Mar 2023 13:42:18 +0200
Subject: [PATCH] added background opacity

---
 CHANGELOG.md                 | 4 ++++
 example/lib/main.dart        | 1 +
 example/pubspec.lock         | 2 +-
 lib/swipe_image_gallery.dart | 8 ++++++--
 pubspec.yaml                 | 2 +-
 5 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50bffe4..b4e2f4e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## [0.8.2](https://github.com/dbilgin/swipe_image_gallery/releases/tag/v0.8.2)
+
+- Added `backgroundOpacity` property.
+
 ## [0.8.1](https://github.com/dbilgin/swipe_image_gallery/releases/tag/v0.8.1)
 
 - Removed touchpad support to fix windows crash.
diff --git a/example/lib/main.dart b/example/lib/main.dart
index 57f4fd5..4a1659a 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -112,6 +112,7 @@ class _ImageGalleryExamplesPageState extends State<ImageGalleryExamplesPage> {
                   initialOverlay: OverlayExample(
                     title: '1/${remoteImages.length}',
                   ),
+                  backgroundOpacity: 0.5,
                 ).show();
               },
               child: const Text('Open Gallery With Overlay'),
diff --git a/example/pubspec.lock b/example/pubspec.lock
index c3468c2..9c266a4 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -166,7 +166,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.8.1"
+    version: "0.8.2"
   term_glyph:
     dependency: transitive
     description:
diff --git a/lib/swipe_image_gallery.dart b/lib/swipe_image_gallery.dart
index d4247b2..dd27709 100644
--- a/lib/swipe_image_gallery.dart
+++ b/lib/swipe_image_gallery.dart
@@ -80,6 +80,7 @@ class SwipeImageGallery {
     this.transitionDuration = 400,
     this.hideOverlayOnTap = true,
     this.zoom = 8.0,
+    this.backgroundOpacity = 1.0,
     this.controller,
     this.onSwipe,
     this.overlayController,
@@ -136,6 +137,9 @@ class SwipeImageGallery {
   /// Amount of zoom allowed.
   final double zoom;
 
+  /// Background opacity between 0-1 and defaults to 1.
+  final double backgroundOpacity;
+
   /// The controller for the image gallery, extends [PageController].
   final ImageGalleryController? controller;
 
@@ -273,13 +277,13 @@ class SwipeImageGallery {
     if (hideStatusBar)
       SystemChrome.setEnabledSystemUIMode(SystemUiMode.manual, overlays: []);
     var showOverlay = true;
-    double _opacity = 1.0;
+    double _opacity = backgroundOpacity;
 
     final content = StatefulBuilder(
       builder: (context, setState) {
         void _setOpacity(double opacity) {
           setState(() {
-            _opacity = opacity;
+            _opacity = opacity * backgroundOpacity;
           });
         }
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 32487f0..d05e7b0 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: swipe_image_gallery
 description: A scrollable, dismissable by swiping, zoomable gallery on which you can add a dynamic overlay.
-version: 0.8.1
+version: 0.8.2
 homepage: https://github.com/dbilgin/swipe_image_gallery
 
 environment: