Renderers/DataBarn.cs

   1 //
   2 // DataBarn.cs
   3 //
   4
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining a copy
   7 // of this software and associated documentation files (the "Software"), to deal
   8 // in the Software without restriction, including without limitation the rights
   9 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 // copies of the Software, and to permit persons to whom the Software is
  11 // furnished to do so, subject to the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be included in all
  14 // copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22 // SOFTWARE.
  23 //
  24
  25 using System;
  26 using System.Collections;
  27 using System.IO;
  28 using System.Reflection;
  29
  30 using BU = Beagle.Util;
  31
  32 namespace Beagle {
  33
  34         public class DataBarn {
  35
  36                 // Don't let anyone instantiate a DataBarn.
  37                 private DataBarn () { }
  38
  39                 static public Stream GetStream (string name)
  40                 {
  41                         if (name.StartsWith ("file://")) {
  42                                 string path = name.Substring ("file://".Length);
  43
  44                                 if (! File.Exists (path)) {
  45                                         Console.WriteLine ("Can't get file '{0}'", path);
  46                                         return null;
  47                                 }
  48
  49                                 return new FileStream (path, FileMode.Open, FileAccess.Read);
  50                         }
  51
  52                         if (name.StartsWith ("mime-icon:")) {
  53                                 string mimeType = name.Substring ("mime-icon:".Length);
  54                                 Gtk.IconSize size = (Gtk.IconSize) 48;
  55                                 string path = BU.GnomeIconLookup.LookupMimeIcon (mimeType, size);
  56                                 return new FileStream (path, FileMode.Open, FileAccess.Read);
  57                         }
  58
  59                         // Otherwise, assume the data is attached to the
  60                         // assembly as a resource.
  61
  62                         Assembly assembly = Assembly.GetExecutingAssembly ();
  63                         Stream s = assembly.GetManifestResourceStream (name);
  64                         if (s == null)
  65                                 Console.WriteLine ("Couldn't get resource '{0}'", name);
  66                         return s;
  67                 }
  68
  69                 static public StreamReader GetText (string name)
  70                 {
  71                         // FIXME: could try to sanity check this by name,
  72                         // warning if (for example) you tried to get a .png file
  73                         // as text.
  74                         Stream s = GetStream (name);
  75                         return s != null ? new StreamReader (s) : null;
  76                 }
  77
  78                 static public Gdk.Pixbuf GetPixbuf (string name)
  79                 {
  80                         Stream s = GetStream (name);
  81                         return s != null ? new Gdk.Pixbuf (s) : null;
  82                 }
  83
  84                 static public Gtk.Widget GetImageWidget (string name)
  85                 {
  86                         Gdk.Pixbuf pixbuf = GetPixbuf (name);
  87                         return pixbuf != null ? new Gtk.Image (pixbuf) : null;
  88                 }
  89         }
  90 }