done new image viewer

QuickLook.Plugin/QuickLook.Plugin.ImageViewer/AnimatedImage/NConvertImageProvider.cs

@@ -0,0 +1,95 @@
+// 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.Threading.Tasks;
+using System.Windows;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+using System.Windows.Media.Imaging;
+using QuickLook.Common.Helpers;
+
+namespace QuickLook.Plugin.ImageViewer.AnimatedImage
+{
+    internal class NConvertImageProvider : AnimationProvider
+    {
+        public NConvertImageProvider(string path, NConvert meta) : base(path, meta)
+        {
+            Animator = new Int32AnimationUsingKeyFrames();
+            Animator.KeyFrames.Add(new DiscreteInt32KeyFrame(0,
+                KeyTime.FromTimeSpan(TimeSpan.Zero)));
+        }
+
+        public override Task<BitmapSource> GetThumbnail(Size size, Size fullSize)
+        {
+            return new Task<BitmapSource>(() =>
+            {
+                try
+                {
+                    using (var ms = Meta.GetTiffStream(true))
+                    {
+                        var img = new BitmapImage();
+                        img.BeginInit();
+                        img.StreamSource = ms;
+                        img.CacheOption = BitmapCacheOption.OnLoad;
+                        img.EndInit();
+
+                        var scaled = new TransformedBitmap(img,
+                            new ScaleTransform(fullSize.Width / img.PixelWidth, fullSize.Height / img.PixelHeight));
+                        scaled.Freeze();
+                        return scaled;
+                    }
+                }
+                catch (Exception e)
+                {
+                    ProcessHelper.WriteLog(e.ToString());
+                    return null;
+                }
+            });
+        }
+
+        public override Task<BitmapSource> GetRenderedFrame(int index)
+        {
+            return new Task<BitmapSource>(() =>
+            {
+                try
+                {
+                    using (var ms = Meta.GetTiffStream(false))
+                    {
+                        var img = new BitmapImage();
+                        img.BeginInit();
+                        img.StreamSource = ms;
+                        img.CacheOption = BitmapCacheOption.OnLoad;
+                        img.EndInit();
+
+                        img.Freeze();
+                        return img;
+                    }
+                }
+                catch (Exception e)
+                {
+                    ProcessHelper.WriteLog(e.ToString());
+                    return null;
+                }
+            });
+        }
+
+        public override void Dispose()
+        {
+        }
+    }
+}