Plugins/ImageView/ImageView.cs

   1 using System;
   2 using System.Xml;
   3 using Mono.Unix;
   4
   5 namespace Eithne
   6 {
   7         public class ImageViewInfo : IInfo
   8         {
   9                 public override string Name
  10                 {
  11                         get { return Catalog.GetString("Image View"); }
  12                 }
  13
  14                 public override string ShortName
  15                 {
  16                         get { return "ImgView"; }
  17                 }
  18
  19                 public override string Author
  20                 {
  21                         get { return "Bartosz Taudul"; }
  22                 }
  23
  24                 public override string Description
  25                 {
  26                         get { return Catalog.GetString("This plugin displays images it receives on input."); }
  27                 }
  28         }
  29
  30         public class ImageViewFactory : IFactory
  31         {
  32                 IInfo _info = new ImageViewInfo();
  33                 public IInfo Info
  34                 {
  35                         get { return _info; }
  36                 }
  37
  38                 public IType Type
  39                 {
  40                         get { return IType.Out; }
  41                 }
  42
  43                 public void Initialize()
  44                 {
  45                 }
  46
  47                 public Plugin.Base Create()
  48                 {
  49                         return new ImageViewPlugin();
  50                 }
  51         }
  52
  53         public class ImageViewPlugin : Plugin.Out
  54         {
  55                 Gdk.Pixbuf[] images = null;
  56                 Gdk.Pixbuf[] thumbs = null;
  57                 int[] cat = null;
  58                 bool invert = false;
  59
  60                 public ImageViewPlugin()
  61                 {
  62                         _info = new ImageViewInfo();
  63                 }
  64
  65                 public override XmlNode Config
  66                 {
  67                         get { return GetConfig(); }
  68                         set { LoadConfig(value); }
  69                 }
  70
  71                 private void UpdateValue(bool invert)
  72                 {
  73                         this.invert = invert;
  74
  75                         _block.Invalidate();
  76                 }
  77
  78                 public override void Setup()
  79                 {
  80                         new ImageSetup(invert, UpdateValue);
  81                 }
  82
  83                 public override bool HasSetup
  84                 {
  85                         get { return true; }
  86                 }
  87
  88                 public override void DisplayResults()
  89                 {
  90                         if(!_workdone)
  91                                 throw new PluginException(Catalog.GetString("Plugin is not ready to display images."));
  92
  93                         new ImageViewWindow(images, thumbs, cat);
  94                 }
  95
  96                 public override void Work()
  97                 {
  98                         ICommImage socket = (ICommImage)_in[0];
  99                         IImage[] img = socket.Images;
 100
 101                         images = new Gdk.Pixbuf[img.Length];
 102                         thumbs = new Gdk.Pixbuf[img.Length];
 103                         cat = socket.Categories;
 104
 105                         double scale;
 106
 107                         for(int i=0; i<img.Length; i++)
 108                         {
 109                                 IImage _img = new IImage(img[i].BPP, img[i].W, img[i].H, img[i].Data, invert);
 110                                 if(invert)
 111                                         _img.Invert();
 112
 113                                 images[i] = _img.CreatePixbuf();
 114
 115                                 if(_img.W > _img.H)
 116                                         scale = _img.W / 64.0;
 117                                 else
 118                                         scale = _img.H / 64.0;
 119
 120                                 thumbs[i] = images[i].ScaleSimple(Scale(_img.W, scale), Scale(_img.H, scale), Gdk.InterpType.Bilinear);
 121                         }
 122
 123                         _workdone = true;
 124                 }
 125
 126                 private int Scale(int s, double scale)
 127                 {
 128                         int val = (int)(s/scale);
 129
 130                         if(val == 0)
 131                                 return 1;
 132                         else
 133                                 return val;
 134                 }
 135
 136                 private XmlNode GetConfig()
 137                 {
 138                         XmlNode root = _xmldoc.CreateNode(XmlNodeType.Element, "config", "");
 139
 140                         if(invert)
 141                                 root.InnerText = "true";
 142                         else
 143                                 root.InnerText = "false";
 144
 145                         return root;
 146                 }
 147
 148                 private void LoadConfig(XmlNode root)
 149                 {
 150                         if(root.InnerText == "true")
 151                                 UpdateValue(true);
 152                         else
 153                                 UpdateValue(false);
 154                 }
 155
 156                 public override int NumIn               { get { return 1; } }
 157
 158                 public override string DescIn(int n)
 159                 {
 160                         return Catalog.GetString("Images to be viewed.");
 161                 }
 162
 163                 private static string[] matchin   = new string[] { "image" };
 164                 public override string[] MatchIn        { get { return matchin; } }
 165         }
 166 }