Rename GIFAnimationProvider.cs to GifAnimationProvider.cs

2025-09-12 10:19:07 +00:00 · 2018-06-14 00:19:17 +03:00
parent cc48d9427a
commit 395d4bbc86
1 changed files with 1 additions and 1 deletions
--- a/QuickLook.Plugin/QuickLook.Plugin.ImageViewer/AnimatedImage/GifAnimationProvider.cs
+++ b/QuickLook.Plugin/QuickLook.Plugin.ImageViewer/AnimatedImage/GifAnimationProvider.cs
@@ -0,0 +1,75 @@
+// Copyright © 2018 Paddy Xu
+// 
+// This file is part of QuickLook program.
+// 
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+// 
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+using System;
+using System.Drawing;
+using System.Windows;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Media.Imaging;
+using System.Windows.Threading;
+using QuickLook.Common.ExtensionMethods;
+
+namespace QuickLook.Plugin.ImageViewer.AnimatedImage
+{
+    internal class GifAnimationProvider : AnimationProvider
+    {
+        private Bitmap _frame;
+        private BitmapSource _frameSource;
+        private bool _isPlaying;
+
+        public GifAnimationProvider(string path, Dispatcher uiDispatcher) : base(path, uiDispatcher)
+        {
+            _frame = (Bitmap) Image.FromFile(path);
+            _frameSource = _frame.ToBitmapSource();
+
+            Animator = new Int32Animation(0, 1, new Duration(TimeSpan.FromMilliseconds(50)))
+            {
+                RepeatBehavior = RepeatBehavior.Forever
+            };
+        }
+
+        public override void Dispose()
+        {
+            if (_frame == null)
+                return;
+
+            ImageAnimator.StopAnimate(_frame, OnFrameChanged);
+            _frame.Dispose();
+
+            _frame = null;
+            _frameSource = null;
+        }
+
+        public override ImageSource GetRenderedFrame(int index)
+        {
+            if (!_isPlaying)
+            {
+                _isPlaying = true;
+                ImageAnimator.Animate(_frame, OnFrameChanged);
+            }
+
+            return _frameSource;
+        }
+
+        private void OnFrameChanged(object sender, EventArgs e)
+        {
+            ImageAnimator.UpdateFrames();
+            _frameSource = _frame.ToBitmapSource();
+        }
+    }
+}