1 files changed, 202 insertions, 0 deletions
diff --git a/Emby.Drawing.ImageMagick/StripCollageBuilder.cs b/Emby.Drawing.ImageMagick/StripCollageBuilder.cs
new file mode 100644
index 000000000..715ab4680
--- /dev/null
+++ b/Emby.Drawing.ImageMagick/StripCollageBuilder.cs
@@ -0,0 +1,202 @@
+using ImageMagickSharp;
+using MediaBrowser.Common.Configuration;
+using System;
+using System.Collections.Generic;
+using MediaBrowser.Common.IO;
+using MediaBrowser.Controller.IO;
+using MediaBrowser.Model.IO;
+
+namespace Emby.Drawing.ImageMagick
+{
+    public class StripCollageBuilder
+    {
+        private readonly IApplicationPaths _appPaths;
+        private readonly IFileSystem _fileSystem;
+
+        public StripCollageBuilder(IApplicationPaths appPaths, IFileSystem fileSystem)
+        {
+            _appPaths = appPaths;
+            _fileSystem = fileSystem;
+        }
+
+        public void BuildPosterCollage(List<string> paths, string outputPath, int width, int height)
+        {
+            using (var wand = BuildPosterCollageWand(paths, width, height))
+            {
+                wand.SaveImage(outputPath);
+            }
+        }
+
+        public void BuildSquareCollage(List<string> paths, string outputPath, int width, int height)
+        {
+            using (var wand = BuildSquareCollageWand(paths, width, height))
+            {
+                wand.SaveImage(outputPath);
+            }
+        }
+
+        public void BuildThumbCollage(List<string> paths, string outputPath, int width, int height)
+        {
+            using (var wand = BuildThumbCollageWand(paths, width, height))
+            {
+                wand.SaveImage(outputPath);
+            }
+        }
+
+        private MagickWand BuildPosterCollageWand(List<string> paths, int width, int height)
+        {
+            var inputPaths = ImageHelpers.ProjectPaths(paths, 3);
+            using (var wandImages = new MagickWand(inputPaths.ToArray()))
+            {
+                var wand = new MagickWand(width, height);
+                wand.OpenImage("gradient:#111111-#111111");
+                using (var draw = new DrawingWand())
+                {
+                    var iSlice = Convert.ToInt32(width * 0.3);
+                    int iTrans = Convert.ToInt32(height * .25);
+                    int iHeight = Convert.ToInt32(height * .65);
+                    var horizontalImagePadding = Convert.ToInt32(width * 0.0366);
+
+                    foreach (var element in wandImages.ImageList)
+                    {
+                        using (var blackPixelWand = new PixelWand(ColorName.Black))
+                        {
+                            int iWidth = (int)Math.Abs(iHeight * element.Width / element.Height);
+                            element.Gravity = GravityType.CenterGravity;
+                            element.BackgroundColor = blackPixelWand;
+                            element.ResizeImage(iWidth, iHeight, FilterTypes.LanczosFilter);
+                            int ix = (int)Math.Abs((iWidth - iSlice) / 2);
+                            element.CropImage(iSlice, iHeight, ix, 0);
+
+                            element.ExtentImage(iSlice, iHeight, 0 - horizontalImagePadding, 0);
+                        }
+                    }
+
+                    wandImages.SetFirstIterator();
+                    using (var wandList = wandImages.AppendImages())
+                    {
+                        wandList.CurrentImage.TrimImage(1);
+                        using (var mwr = wandList.CloneMagickWand())
+                        {
+                            using (var blackPixelWand = new PixelWand(ColorName.Black))
+                            {
+                                using (var greyPixelWand = new PixelWand(ColorName.Grey70))
+                                {
+                                    mwr.CurrentImage.ResizeImage(wandList.CurrentImage.Width, (wandList.CurrentImage.Height / 2), FilterTypes.LanczosFilter, 1);
+                                    mwr.CurrentImage.FlipImage();
+
+                                    mwr.CurrentImage.AlphaChannel = AlphaChannelType.DeactivateAlphaChannel;
+                                    mwr.CurrentImage.ColorizeImage(blackPixelWand, greyPixelWand);
+
+                                    using (var mwg = new MagickWand(wandList.CurrentImage.Width, iTrans))
+                                    {
+                                        mwg.OpenImage("gradient:black-none");
+                                        var verticalSpacing = Convert.ToInt32(height * 0.01111111111111111111111111111111);
+                                        mwr.CurrentImage.CompositeImage(mwg, CompositeOperator.CopyOpacityCompositeOp, 0, verticalSpacing);
+
+                                        wandList.AddImage(mwr);
+                                        int ex = (int)(wand.CurrentImage.Width - mwg.CurrentImage.Width) / 2;
+                                        wand.CurrentImage.CompositeImage(wandList.AppendImages(true), CompositeOperator.AtopCompositeOp, ex, Convert.ToInt32(height * .05));
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+
+                return wand;
+            }
+        }
+
+        private MagickWand BuildThumbCollageWand(List<string> paths, int width, int height)
+        {
+            var inputPaths = ImageHelpers.ProjectPaths(paths, 4);
+            using (var wandImages = new MagickWand(inputPaths.ToArray()))
+            {
+                var wand = new MagickWand(width, height);
+                wand.OpenImage("gradient:#111111-#111111");
+                using (var draw = new DrawingWand())
+                {
+                    var iSlice = Convert.ToInt32(width * 0.24125);
+                    int iTrans = Convert.ToInt32(height * .25);
+                    int iHeight = Convert.ToInt32(height * .70);
+                    var horizontalImagePadding = Convert.ToInt32(width * 0.0125);
+
+                    foreach (var element in wandImages.ImageList)
+                    {
+                        using (var blackPixelWand = new PixelWand(ColorName.Black))
+                        {
+                            int iWidth = (int)Math.Abs(iHeight * element.Width / element.Height);
+                            element.Gravity = GravityType.CenterGravity;
+                            element.BackgroundColor = blackPixelWand;
+                            element.ResizeImage(iWidth, iHeight, FilterTypes.LanczosFilter);
+                            int ix = (int)Math.Abs((iWidth - iSlice) / 2);
+                            element.CropImage(iSlice, iHeight, ix, 0);
+
+                            element.ExtentImage(iSlice, iHeight, 0 - horizontalImagePadding, 0);
+                        }
+                    }
+
+                    wandImages.SetFirstIterator();
+                    using (var wandList = wandImages.AppendImages())
+                    {
+                        wandList.CurrentImage.TrimImage(1);
+                        using (var mwr = wandList.CloneMagickWand())
+                        {
+                            using (var blackPixelWand = new PixelWand(ColorName.Black))
+                            {
+                                using (var greyPixelWand = new PixelWand(ColorName.Grey70))
+                                {
+                                    mwr.CurrentImage.ResizeImage(wandList.CurrentImage.Width, (wandList.CurrentImage.Height / 2), FilterTypes.LanczosFilter, 1);
+                                    mwr.CurrentImage.FlipImage();
+
+                                    mwr.CurrentImage.AlphaChannel = AlphaChannelType.DeactivateAlphaChannel;
+                                    mwr.CurrentImage.ColorizeImage(blackPixelWand, greyPixelWand);
+
+                                    using (var mwg = new MagickWand(wandList.CurrentImage.Width, iTrans))
+                                    {
+                                        mwg.OpenImage("gradient:black-none");
+                                        var verticalSpacing = Convert.ToInt32(height * 0.01111111111111111111111111111111);
+                                        mwr.CurrentImage.CompositeImage(mwg, CompositeOperator.CopyOpacityCompositeOp, 0, verticalSpacing);
+
+                                        wandList.AddImage(mwr);
+                                        int ex = (int)(wand.CurrentImage.Width - mwg.CurrentImage.Width) / 2;
+                                        wand.CurrentImage.CompositeImage(wandList.AppendImages(true), CompositeOperator.AtopCompositeOp, ex, Convert.ToInt32(height * .045));
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+
+                return wand;
+            }
+        }
+
+        private MagickWand BuildSquareCollageWand(List<string> paths, int width, int height)
+        {
+            var inputPaths = ImageHelpers.ProjectPaths(paths, 4);
+            var outputWand = new MagickWand(width, height, new PixelWand("none", 1));
+            var imageIndex = 0;
+            var cellWidth = width/2;
+            var cellHeight = height/2;
+            for (var x = 0; x < 2; x++)
+            {
+                for (var y = 0; y < 2; y++)
+                {
+                    using (var temp = new MagickWand(inputPaths[imageIndex]))
+                    {
+                        temp.CurrentImage.ScaleImage(cellWidth, cellHeight);
+                        // draw this image into the strip at the next position
+                        var xPos = x*cellWidth;
+                        var yPos = y*cellHeight;
+                        outputWand.CurrentImage.CompositeImage(temp, CompositeOperator.OverCompositeOp, xPos, yPos);
+                    }
+                    imageIndex++;
+                }
+            }
+
+            return outputWand;
+        }
+    }
+}